CN211860488U - Wireless earphone - Google Patents

Abstract

The application provides a wireless headset, and relates to the field of TWS wireless headsets. The wireless earphone comprises an earphone shell and an earphone assembly accommodated in the earphone shell, wherein the earphone assembly comprises a microphone; the earphone shell comprises a bottom shell, the bottom shell comprises a first bottom shell part and a second bottom shell part which are separated by an insulating material, the first bottom shell part is a charging anode, and the second bottom shell part is a charging cathode; the bottom shell is provided with a plurality of sound inlet holes, and the sound inlet holes form microphone sound inlet channels which are communicated with each other. According to the technical scheme, wind noise can be reduced, and conversation experience is improved.

Description

Wireless earphone

Technical Field

The application relates to the technical field of earphones, in particular to a wireless earphone.

Background

The wireless earphone can communicate with the terminal equipment by utilizing a wireless communication technology (such as a Bluetooth technology, an infrared radio frequency technology, a 2.4G wireless technology and the like), and compared with the wired earphone, the wireless earphone is more convenient and fast to use due to the fact that the wireless earphone is free from the constraint of a physical wire, so that the wireless earphone is rapidly developed, and the left earphone and the right earphone of the wireless earphone can be connected through Bluetooth.

The wireless earphone is generally provided with an independent charging box, the wireless earphone is placed into the charging box when the wireless earphone needs to be charged, and the wireless earphone can be charged after a charging contact arranged on the wireless earphone is contacted with a contact in the charging box.

At present, a microphone of a wireless headset can pick up wind sound signals with strong energy besides normal voice signals, so that wind noise is serious.

SUMMERY OF THE UTILITY MODEL

The technical scheme of the application provides a wireless headset, can reduce wind and make an uproar, promotes the conversation and experiences.

In a first aspect, a wireless headset is provided, comprising: the earphone comprises an earphone shell and an earphone assembly accommodated in the earphone shell, wherein the earphone assembly comprises a microphone; the earphone shell comprises a bottom shell, the bottom shell comprises a first bottom shell part and a second bottom shell part which are separated by an insulating material, the first bottom shell part is a charging anode, and the second bottom shell part is a charging cathode; the bottom shell is provided with a plurality of sound inlet holes, and the sound inlet holes form microphone sound inlet channels which are communicated with each other.

In the wireless earphone that this application technical scheme provided, set up a plurality of sound holes on the drain pan of earphone, a plurality of sound holes form the microphone sound inlet channel of mutual intercommunication, can shunt and attenuate the wind acoustic signal that gets into wireless earphone inside through setting up the sound structure passageway on the drain pan to reach the effect that reduces wind and make an uproar, can further promote the conversation and experience.

Wherein, regard as the anodal and the negative pole that charges of charging with the drain pan of earphone, need not to set up alone the contact that charges to can increase the space utilization of the inside cavity of earphone.

Therefore, the earphone drain pan of the wireless earphone provided by the technical scheme of the application can restrain wind noise, promote the product conversation experience, and can realize the function of conducting charging, thereby simplifying the structural design, reducing the structural complexity, reducing the process difficulty and increasing the space utilization rate.

It should be understood that the "microphone sound inlet channel" in the embodiment of the present application is a channel for a normal voice signal to be picked up by a microphone inside the earphone, but when a wind sound signal enters inside the earphone, the wind sound signal may also be picked up by the microphone through the microphone sound inlet channel. In the embodiment of the application, the plurality of sound inlet holes arranged on the bottom shell form the microphone sound inlet channels which are communicated with each other, so that wind noise can be reduced by reducing wind sound signals picked up by the microphone, namely, part of wind sound signals entering the inside of the earphone can not be picked up by the microphone, and flow out of the earphone through the microphone sound inlet channels which are communicated with each other. In other words, the "microphone sound inlet channel" in the embodiment of the present application may be used for the normal voice signal to be picked up by the microphone and also for the wind sound signal to flow out of the earphone directly without being picked up by the microphone.

With reference to the first aspect, in a possible implementation manner, the plurality of sound inlet holes are uniformly disposed in the bottom case.

A plurality of sound holes are uniformly distributed on the bottom shell of the wireless earphone and communicated with one another, so that voice signals in all directions can be picked up by the wireless earphone, and conversation experience is improved.

With reference to the first aspect, in one possible implementation manner, the plurality of sound inlet holes are provided in the insulating material.

The structural design that the first bottom shell part and the second bottom shell part are used as the charging anode and the charging cathode is not influenced by the arrangement of the plurality of sound inlet holes in the insulating material, so that the structural complexity can be simplified, and the process difficulty can be reduced.

With reference to the first aspect, in one possible implementation manner, the plurality of sound inlet holes include two sound inlet holes, and axes of the two sound inlet holes coincide.

Because wind is generally directional, when the axes of the two sound inlet holes are coincident, a wind sound signal is allowed to flow out from the other sound inlet hole after entering the earphone from one sound inlet hole, the wind sound signal attenuation effect is better, and the wind noise reduction effect is better.

With reference to the first aspect, in a possible implementation manner, a cross section of the microphone sound inlet channel is at least one of the following shapes: circular, oval, polygonal, wave-shaped.

With reference to the first aspect, in a possible implementation manner, the microphone sound inlet channel includes a first sound inlet channel and a second sound inlet channel that are communicated with each other, and the first sound inlet channel and the second sound inlet channel are communicated with the microphone through a common sound inlet channel.

The first sound inlet channel and the second sound inlet channel which are communicated with each other allow the wind sound signal to flow out of the second sound inlet channel after entering from the first sound inlet channel, so that the wind sound signal attenuation effect is better, and the wind noise reduction effect is better. The first sound inlet channel and the second sound inlet channel are communicated with the microphone through the public sound inlet channel, and the picking-up of the normal voice signals is not influenced.

With reference to the first aspect, in one possible implementation manner, the outer wall of the bottom shell is arc-shaped.

The outer wall of the bottom shell is arc-shaped, can be conveniently contacted with the charging electrode in a point contact mode, a line contact mode or a surface contact mode, and is simultaneously suitable for the charging electrodes in various forms.

With reference to the first aspect, in a possible implementation manner, the earphone assembly further includes a flexible circuit board and a battery electrically connected to the flexible circuit board, and the first bottom case portion and the second bottom case portion are electrically connected to the flexible circuit board respectively.

The first bottom shell part is used as a charging anode, the second bottom shell part is used as a charging cathode, the first bottom shell part and the second bottom shell part are respectively and electrically connected with the flexible circuit board, and meanwhile, the battery is also electrically connected with the flexible circuit board, so that a circuit for charging the battery is formed, and the wireless earphone can be charged.

With reference to the first aspect, in a possible implementation manner, the flexible circuit board is provided with a first bending portion near the bottom case, the microphone is provided at the first bending portion, and the microphone is electrically connected to the flexible circuit board.

The microphone is arranged at a position close to the bottom shell, and can conveniently pick up sound signals.

With reference to the first aspect, in a possible implementation manner, the flexible circuit board is provided with a second bending portion at an ear insertion end of the earphone housing, and the second bending portion is provided with a speaker.

In a second aspect, a wireless headset is provided, comprising: the earphone comprises an earphone shell and an earphone assembly accommodated in the earphone shell, wherein the earphone assembly comprises a microphone; the earphone shell comprises a bottom shell, the bottom shell is one of a charging anode and a charging cathode, and the other of the charging anode and the charging cathode is arranged separately from the bottom shell; the bottom shell is provided with a plurality of sound inlet holes, and the sound inlet holes form microphone sound inlet channels which are communicated with each other.

In the wireless earphone that this application technical scheme provided, set up a plurality of sound holes on the drain pan of earphone, a plurality of sound holes form the microphone sound inlet channel of mutual intercommunication, can shunt and attenuate the wind acoustic signal that gets into wireless earphone inside through setting up the sound structure passageway on the drain pan to reach the effect that reduces wind and make an uproar, promote the conversation and experience.

Furthermore, the bottom shell of the earphone is used as one of the charging anode and the charging cathode, and a charging contact is not required to be arranged independently, so that the space utilization rate of the cavity inside the earphone can be increased. Specifically, a charging positive electrode or a charging negative electrode is arranged on the bottom shell, and the other one is arranged separately from the bottom shell, so that the bottom shell is used as one of the charging positive electrode and the charging negative electrode, and the design of the bottom shell, such as material and structural design, is more flexible.

Therefore, the earphone drain pan of the wireless earphone provided by the technical scheme of the application can restrain wind noise, promote the product conversation experience, and can realize the function of conducting charging, thereby simplifying the structural design, reducing the structural complexity, reducing the process difficulty and increasing the space utilization rate.

In combination with the second aspect, in a possible implementation manner, the earphone casing includes a front casing, a rear casing and an earphone handle, the front casing is connected to the rear casing, the rear casing extends downward to form the earphone handle, the bottom casing is located at one end of the earphone handle, and the other of the positive electrode and the negative electrode is provided in the rear casing.

With reference to the second aspect, in a possible implementation manner, the plurality of sound inlet holes are uniformly disposed in the bottom case.

A plurality of sound holes are uniformly distributed on the bottom shell of the wireless earphone and communicated with one another, so that voice signals in all directions can be picked up by the wireless earphone, and conversation experience is improved.

With reference to the second aspect, in one possible implementation manner, the plurality of sound inlet holes include two sound inlet holes, and axes of the two sound inlet holes coincide.

Because wind generally has a direction, when the axes of the two sound inlet holes are overlapped, the wind sound signal is allowed to flow out from the other sound inlet hole after entering the earphone from one sound inlet hole, the attenuation effect on the wind sound signal is better, and the wind noise reduction effect is better.

With reference to the second aspect, in one possible implementation manner, the cross section of the microphone sound inlet channel is at least one of the following shapes: circular, oval, polygonal, wave-shaped.

With reference to the second aspect, in a possible implementation manner, the microphone sound inlet channel includes a first sound inlet channel and a second sound inlet channel that are communicated with each other, and the first sound inlet channel and the second sound inlet channel are communicated with the microphone through a common sound inlet channel.

The first sound inlet channel and the second sound inlet channel which are communicated with each other allow the wind sound signal to flow out of the second sound inlet channel after entering from the first sound inlet channel, so that the wind sound signal attenuation effect is better, and the wind noise reduction effect is better. And the first sound inlet channel and the second sound inlet channel are communicated with the microphone through the common sound inlet channel, so that the pickup of normal voice signals is not influenced.

With reference to the second aspect, in one possible implementation manner, the outer wall of the bottom shell is arc-shaped.

The outer wall of the bottom shell is arc-shaped, can be conveniently contacted with the charging electrode in a point contact mode, a line contact mode or a surface contact mode, and is simultaneously suitable for the charging electrodes in various forms.

With reference to the second aspect, in a possible implementation manner, the earphone assembly further includes a flexible circuit board and a battery electrically connected to the flexible circuit board, one end of the flexible circuit board is electrically connected to the bottom case, and the other end of the flexible circuit board is electrically connected to the other of the positive and negative charging electrodes.

The bottom shell is electrically connected with the flexible circuit board as one of a charging anode and a charging cathode, the other of the charging anode and the charging cathode is also electrically connected with the flexible circuit board, and meanwhile, the battery is electrically connected with the flexible circuit board to form a battery charging circuit, so that the wireless earphone can be charged.

With reference to the second aspect, in a possible implementation manner, the flexible circuit board is provided with a first bending portion near the bottom case, the microphone is provided at the first bending portion, and the microphone is electrically connected to the flexible circuit board.

The microphone is arranged at a position close to the bottom shell, and can conveniently pick up sound signals.

With reference to the second aspect, in a possible implementation manner, the flexible circuit board is provided with a second bending portion at an ear insertion end of the earphone housing, and the second bending portion is provided with a speaker.

A third aspect of the present invention provides a terminal, including a wireless headset and a charging box for accommodating the wireless headset, wherein the wireless headset includes a headset housing and a headset assembly accommodated in the headset housing, the headset assembly includes a microphone, the headset housing includes a bottom shell, the bottom shell includes a first bottom shell portion and a second bottom shell portion separated by an insulating material, the first bottom shell portion is a charging positive electrode, the second bottom shell portion is a charging negative electrode, the bottom shell is provided with a plurality of sound inlet holes, and the plurality of sound inlet holes form microphone sound inlet channels communicated with each other; the charging box comprises a charging box body and a charging box cover, wherein a containing space is arranged on the charging box body, and the containing control is used for containing the earphone.

The charging box cover can be used for covering the accommodating space, wherein the accommodating space comprises a bottom accommodating groove which is provided with charging electrodes corresponding to the first bottom shell part and the second bottom shell part respectively and used for accommodating the bottom shell of the wireless earphone.

The terminal provided by the technical scheme of the application comprises the wireless earphone and the charging box, and the bottom shell of the wireless earphone can inhibit wind noise, improve the conversation experience of a product and realize the function of conducting charging, so that the structural design can be simplified, the structural complexity is reduced, the process difficulty can be reduced, and the space utilization rate is increased; the charging box is used for accommodating the wireless earphone and can be used as a power supply to charge the wireless earphone.

With reference to the third aspect, in one possible implementation manner, the charging electrode is any one of a charging contact, a charging spring, a charging block, or a charging surface.

With reference to the third aspect, in one possible implementation manner, the charging box body and the charging box cover are rotatably connected.

In a fourth aspect, a terminal is provided, which includes a wireless headset and a charging box for accommodating the wireless headset, wherein the wireless headset includes a headset housing and a headset assembly accommodated in the headset housing, the headset assembly includes a microphone, the headset housing includes a bottom shell, the bottom shell is one of a positive charging pole and a negative charging pole, the other of the positive charging pole and the negative charging pole is separated from the bottom shell, the bottom shell is provided with a plurality of sound inlet holes, and the plurality of sound inlet holes form microphone sound inlet channels communicated with each other; the charging box comprises a charging box body and a charging box cover, wherein an accommodating space is formed in the charging box body and used for sealing the accommodating space, the accommodating space comprises a bottom accommodating groove which is provided with a charging electrode corresponding to the bottom shell and used for accommodating the bottom shell of the wireless earphone, and the other corresponding charging electrode in the charging anode and the charging cathode is not arranged in the bottom accommodating groove.

The terminal provided by the technical scheme of the application comprises the wireless earphone and the charging box, and the bottom shell of the wireless earphone can inhibit wind noise, improve the conversation experience of a product and realize the function of conducting charging, so that the structural design can be simplified, the structural complexity is reduced, the process difficulty is reduced, and the space utilization rate is increased; the charging box is used for accommodating the wireless earphone and can be used as a power supply to charge the wireless earphone.

In combination with the fourth aspect, in a possible implementation manner, the earphone casing further includes a front casing, a rear casing and an earphone handle, the front casing is connected to the rear casing, the rear casing extends downward to form the earphone handle, the bottom casing is located at one end of the earphone handle, another one of the positive and negative electrodes for charging is disposed in the rear casing, and a charging electrode corresponding to the other one of the positive and negative electrodes for charging is disposed in a position corresponding to the rear casing.

With reference to the fourth aspect, in a possible implementation manner, the charging electrode is any one of a charging contact, a charging spring, a charging block, or a charging surface.

With reference to the fourth aspect, in one possible implementation manner, the charging box body and the charging box cover are rotatably connected.

Drawings

Fig. 1 is a schematic block diagram of a wireless headset provided by an embodiment of the present application;

fig. 2(a) is a schematic cross-sectional view of the wireless headset of fig. 1;

fig. 2(b) is an enlarged schematic bottom view of the wireless headset of fig. 2 (a);

fig. 3(a) shows a schematic structural view of a microphone unit;

FIG. 3(b) is a schematic diagram of the working principle of a microphone;

fig. 4 is an exploded schematic view of the earphone assembly of fig. 2;

fig. 5 is a schematic block diagram of a wireless headset provided in another embodiment of the present application;

fig. 6 is a schematic block diagram of a wireless headset provided by an embodiment of the present application;

fig. 7 is an exploded view of a wireless headset according to an embodiment of the present application;

fig. 8 is a schematic diagram of a connection relationship of the earphone assembly provided by an embodiment of the present application;

fig. 9 is a schematic block diagram of a wireless headset provided in another embodiment of the present application;

fig. 10 is an exploded view of a wireless headset according to another embodiment of the present application;

fig. 11 is an exploded view of a wireless headset according to another embodiment of the present application;

fig. 12 is a schematic diagram of a connection relationship of the earphone assembly provided by another embodiment of the present application;

fig. 13 is an exploded view of a wireless headset disposed within a charging box according to one embodiment of the present application;

fig. 14 is a schematic view of a wireless headset of one embodiment of the present application placed in a charging box;

fig. 15 is a schematic perspective view of a wireless headset of one embodiment of the present application placed in a charging box;

fig. 16(a) is a schematic structural diagram of a view angle of a bottom case of a wireless headset according to an embodiment of the present application;

fig. 16(b) is a schematic structural diagram of another perspective of a bottom case of a wireless headset according to an embodiment of the present application;

fig. 17 is a schematic structural diagram of a bottom case of a wireless headset according to an embodiment of the present application;

fig. 18 is a partially schematic exploded view of a wireless headset provided by an embodiment of the present application;

fig. 19 is a partial schematic cross-sectional view of a wireless headset according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

Embodiments of the present application provide a wireless headset that may be used in a call scenario as an accessory to a terminal device, where the terminal device includes, but is not limited to, a handheld device, an in-vehicle device, a wearable device, a computing device, or other processing device connected to a wireless modem. The terminal devices may include a cellular phone (cellular phone), a smart phone (smartphone), a Personal Digital Assistant (PDA) computer, a tablet computer, a laptop computer (laptop computer), a vehicle-mounted computer, a smart watch (smart watch), a smart bracelet (smart watch), a pedometer (pedometer), and other terminal devices having a call function. The terminal device in the embodiment of the present application may also be referred to as a terminal. The call scene includes, but is not limited to, an indoor call scene, an outdoor call scene, and a vehicular call scene. The call scenes may include quiet call scenes, noisy call scenes (e.g., scenes in streets, shopping malls, airports, stations, construction sites, in the rain, at tours, concerts, etc.), riding call scenes, outdoor windy call scenes, monaural call scenes, binaural call scenes, and other call-enabled scenes.

The earphone (ear-set) may be a pair of converting units for receiving electrical signals from a media player or a receiver and converting the electrical signals into audible sound waves by a speaker near the ear.

The headset may be generally classified into a wired headset (wired headset) and a wireless headset (wireless headset). The wired earphone is provided with two earphones and a connecting wire, wherein the left earphone and the right earphone are connected through the connecting wire. The wired headset may be inconvenient to wear and needs to be connected with the terminal device through a headset jack, and the electric quantity of the terminal device needs to be consumed in the working process. The wireless earphone can communicate with the terminal device by using a wireless communication technology (such as a Bluetooth technology, an infrared radio frequency technology, a 2.4G wireless technology, ultrasonic waves and the like), and compared with the wired earphone, the wireless earphone is more convenient and rapid to use due to the fact that the wireless earphone is free from the constraint of physical wires. Wherein, the left earphone of wireless earphone can pass through bluetooth connection right earphone.

Bluetooth is a low-cost large-capacity short interval wireless communication standard, the Bluetooth standard selects microwave frequency band operation, the transmission rate can be 1 Mbyte per second, the maximum transmission interval can be 10 meters, and the transmission power can reach 100 meters after being added. With the elimination of earphone jacks in some terminal devices and the popularization and version updating of bluetooth technologies, various wireless bluetooth earphones are coming into the market, and from business type monaural bluetooth earphones for conversation scenes in the early stage, to stereo bluetooth earphones capable of supporting music playing, to true wireless bluetooth earphones which completely abandon wires, the functions of the wireless earphones are more and more abundant, and the application scenes are more and more abundant.

A true wireless bluetooth headset, also called a True Wireless Stereo (TWS) headset, completely discards the wire connection approach, including two headsets (e.g., a master headset and a slave headset). For example, when the portable terminal is used, a terminal device (also referred to as a transmitting device, such as a mobile phone, a tablet, a music player with bluetooth output, etc.) is wirelessly connected with a master earphone, and then the master earphone is connected with a slave earphone in a bluetooth wireless manner, so that real bluetooth left and right channel wireless separation use can be realized. The left earphone and the right earphone of the TWS earphone can form a stereo system through Bluetooth, and the performances of listening to songs, communicating and wearing are improved. In addition, either of the two earphones can also work alone, e.g., the master earphone can return to mono sound quality in case the master earphone is not connected to the slave earphone. Due to the fact that the left and right earphones of the TWS earphone are not physically connected, almost all the TWS earphones are provided with the charging box with the charging and containing functions. The charging box can provide power for the wireless earphone and store functions, when the wireless earphone is not powered on, the earphone can be automatically disconnected as long as the earphone is placed into the charging box, and the charging box charges the earphone.

Fig. 1 shows a schematic block diagram of a wireless headset according to an embodiment of the present application. As shown in fig. 1, the wireless headset 100 may include a headset housing 1 and a headset assembly (not shown) accommodated in an internal cavity formed by the headset housing 1, which will be described below with reference to fig. 2 and will not be described in detail herein.

It should be noted that in the description of the embodiments of the present application, the terms "center", "upper", "lower", "front", "rear", "bottom", "top", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or component must have a specific orientation or be configured and operated in a specific orientation, and thus, should not be interpreted as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It should be noted that the same reference numerals are used to denote the same components or parts in the embodiments of the present application, and for the same parts in the embodiments of the present application, only one of the parts or parts may be given the reference numeral, and it should be understood that the reference numerals are also applicable to the other same parts or parts.

Referring to fig. 1, the earphone housing 1 may include a front housing 11, a rear housing 12, an earphone handle 13, and a bottom housing 14, wherein the front housing 11 is a housing of a side of the wireless earphone facing a human ear when in use, the rear housing 12 is a housing of a side of the wireless earphone facing away from the human ear when in use, the front housing 11 is connected to the rear housing 12, the rear housing 12 extends downward to form the earphone handle 13, and the bottom housing 14 is located at one end of the earphone handle 13. The front case 11 is substantially in the shape of a hood and is connected to one end of the rear case 12 in the shape of a hood, and the earphone holder 13 is substantially in the shape of a tube and is connected to the other end of the rear case 12, wherein the extension lines of both ends of the rear case 12 are at an angle, for example, 90 °. The front case 11 and the rear case 12 may be snap-fit connected or integrally connected. The rear shell 12 and the earphone handle 13 may be connected in a snap-fit manner or may be connected integrally. The bottom shell 14 is located at the bottom of the earphone handle 13, and can be buckled with the earphone handle 13 or integrally connected with the earphone handle. The bottom shell 14 is provided with a sound inlet hole 141 for communicating the exterior of the earphone with the internal cavity of the earphone, so that an external sound signal enters the interior of the earphone through the sound inlet hole 141 and is picked up by a microphone in the interior of the earphone cavity. The bottom case 14 is further provided with an opening 142 for exposing the charging contact, and the charging contact of the wireless headset 100 protrudes from the interior of the headset cavity through the opening 142 so as to contact with the contact in the charging box when the wireless headset 100 is charged, thereby performing charging. Fig. 1 exemplarily shows that two openings 142 for extending the charging contacts are provided on two sides of the sound inlet 141, wherein the charging contact corresponding to one opening 142 serves as a positive electrode, and the charging contact corresponding to the other opening 142 serves as a negative electrode. The front housing 11 is provided with a sound outlet (not directly shown in fig. 1 when the wireless headset is viewed from above) for communicating the exterior of the headset with the internal cavity of the headset, so that a sound signal emitted from the speaker unit in the internal cavity of the headset enters the ear of a person through the sound outlet. In some implementations, the front housing 11 may further include a pressure relief hole 111 for facilitating air flowing in and out, and balancing pressure inside and outside the earphone, so that the built-in speaker unit vibrates more freely and smoothly, thereby providing better hearing effect. In some implementations, an opening 112 may also be provided on the front case 11, and a sensor may be provided at the position of the opening 112. For example, the front case 11 is provided with a contact sensor at the opening 112 for sensing whether the earphone is worn. It will be appreciated that a sensor may also be provided in the housing for sensing whether the headset is being worn, in which case the front housing 11 may not be provided with the aperture 112.

Fig. 2 shows a schematic cross-sectional view of the internal structure of the wireless headset of fig. 1. It will be appreciated that the cross-sectional view may be a stepped cross-sectional view. The figure shows an earphone assembly 2 housed in an internal cavity formed by an earphone housing 1.

Referring to fig. 2, the earphone assembly 2 may include a speaker unit 21, a control unit 22, a sound receiving unit 23, a Flexible Printed Circuit (FPC) 24, a battery 25, a charging unit 26, a sensing device (not shown in the figure), and the like. Wherein the earphone assembly 2 further comprises an auxiliary sound receiving unit 27, the auxiliary sound receiving unit 27 may be a microphone, for example a microphone picking up background sound in a conversation scene.

Referring to fig. 2(a), the speaker unit 21 is located in a cavity formed by the front case 11 and the rear case 12 with its sound emission direction toward the front case 11. The speaker unit 21 may be an electroacoustic transducer device for converting an audio electrical signal into a sound signal, and the speaker unit 21 may be a moving coil unit, a moving iron unit, or a coil-iron mixing unit. The speaker unit 21 may also be called a horn or a speaker, and thus the moving coil unit, the moving iron unit, or the coil-iron mixing unit may also be called a moving coil speaker (or called dynamic speaker), a moving iron speaker, or a coil-iron mixing speaker, respectively. The speaker unit 21 can be of many types, but the basic operation principle is similar, and taking the speaker unit 21 as a moving-coil speaker as an example, the moving-coil speaker can generally include a diaphragm, a voice coil, a permanent magnet, a support frame, and the like. When the voice coil of the loudspeaker is connected with audio current, the voice coil generates an alternating magnetic field under the action of the current, and the permanent magnet also generates a constant magnetic field with unchanged size and direction. The size and direction of the magnetic field generated by the voice coil are continuously changed along with the change of the audio current, so that the voice coil moves in a direction perpendicular to the current direction in the voice coil due to the interaction of the two magnetic fields, the voice coil is connected with the vibrating membrane to drive the vibrating membrane to vibrate, the vibrating membrane can push air, the air is compressed and expanded, pressure is generated at the original atmospheric pressure, sound waves are radiated outwards, the sound pressure acts on human ears, and the sensed sound is the sound, namely, the sound is generated by the vibration of the air caused by the vibration of the vibrating membrane. When the current input to the voice coil is larger, the acting force of the magnetic field of the voice coil is larger, the amplitude of the vibration of the diaphragm is larger, and the sound is louder. The loudspeaker mainly emits high-pitched sound at the center of the diaphragm, and the harder the material of the center of the diaphragm of the loudspeaker is, the better the sound effect of the loudspeaker is reproduced. The part of the loudspeaker emitting bass is mainly arranged at the edge of the vibrating membrane, and if the edge of the vibrating membrane of the loudspeaker is soft and the caliber of the cone is large, the bass effect emitted by the loudspeaker is better.

In one implementation, the speaker unit 21 is capable of receiving an audio signal, a control signal (e.g., a streaming media control signal) and the like transmitted by the terminal device, and may also transmit the received audio signal, the control signal and the like to other speaker units, for example, when the speaker unit 21 is used as a master speaker, the audio signal, the control signal and the like received by the slave terminal device may be transmitted to a slave speaker, so that audio is synchronously played in two separate speakers, and a stereo effect is further achieved.

Referring to fig. 2(a), the control unit 22 is located in a cavity formed by the front case 11 and the rear case 12. Is located at a position farther from the front case 11 than the speaker unit 21 and is connected to the speaker unit 21. The control unit 22 may include a motherboard (or a main chip or a main control chip), a bluetooth chip, etc., and may be used for charge management, signal transmission, etc., and in some embodiments, the control unit 22 may also be used for active noise reduction. Alternatively, the control unit 22 may be a microprocessor.

Referring to fig. 2(a), the sound receiving unit 23 is located in a cavity formed by the bottom case 14 and the earphone handle 13, and the bottom case 14 and the earphone handle 13 can be connected in a snap-fit manner. Referring to (b) of fig. 2, the sound receiving unit 23 includes a Microphone (MIC) 231 fixed to a Flexible Printed Circuit (FPC) 24, a waterproof and dustproof film 232, and the like.

For example, as shown in fig. 2(b), the flexible circuit board FPC 24 may include a plurality of portions, one end (for convenience of description, denoted as a first FPC portion 241 in this embodiment) of the FPC 24 is located in a cavity formed by the bottom case 14 and the earphone handle 13, and the first FPC portion 241 may be electrically connected to the sound receiving unit 23, the charging unit 26, and the like; the other end of the FPC (in the present embodiment, shown as a second FPC portion 242 for convenience of description, refer to fig. 11) is located in a cavity formed by the front housing 11 and the rear housing 12, and the second FPC portion 242 may be electrically connected to the control unit 22, the speaker unit 21, and the like. For example, referring to fig. 11, the flexible circuit board 24 may be provided with a first bending portion (e.g., a first FPC portion 241) at an end near the bottom case 14, the microphone is provided at the first bending portion and the microphone is electrically connected to the flexible circuit board 24; the flexible circuit board 24 may be provided with a second bending portion at the ear-in end of the earphone housing, the second bending portion being provided with a speaker unit (e.g., speaker) 21. The first FPC portion 241 may extend to the second FPC portion 242 through a cavity formed by the earphone handle 13, and for convenience of description, an extending portion between the first FPC portion 241 and the second FPC portion 242 is referred to as an intermediate FPC portion, and the intermediate FPC portion may be electrically connected to the battery 25, an antenna module (not shown), and the like. The first FPC portion 241, the second FPC portion 242 and the intermediate FPC portion may be fixed to the respective housing portions of the earphone housing 1.

In the embodiment of the present application, the first FPC portion 241 may be located in a cavity formed in the bottom case 14 and fixed to the bottom wall 143 of the bottom case 14. Waterproof dustproof membrane 232 is the slice, sets up in one side that first FPC part 241 is close to diapire 143 of drain pan 14, and its two upper and lower surfaces are covered with the glue film such as double faced adhesive tape, and the glue film of the upper surface of waterproof dustproof membrane 232 is used for laminating the upper surface of waterproof dustproof membrane 232 and the lower surface of first FPC part 241, and the glue film of the lower surface of waterproof dustproof membrane 232 is used for laminating the lower surface of waterproof dustproof membrane 232 and diapire 143 of drain pan 14. The first FPC portion 241 may be fixed to the bottom wall 143 of the bottom case 14 through the waterproof and dustproof film 232 and the adhesive layer thereon. The waterproof dustproof film 232 has dense meshes, so that it is ensured that a sound signal can reach the call microphone 231 through the waterproof dustproof film 232, and the waterproof dustproof film can play a role in preventing dust and water from entering the bottom case 14 and can also prevent an external object from puncturing a vibrating diaphragm of the call microphone 231. The action scope of waterproof dustproof membrane 232 is mainly sound inlet 141, and outside sound signals can enter the earphone only through sound inlet 141, and impurities such as dust and water vapor are intercepted outside earphone shell 1 by waterproof dustproof membrane 232. As described above, the sound inlet hole 141 may be located at the bottom of the bottom case 14, opposite to the call microphone 231.

The call microphone 231 may be fixed to the first FPC portion 241 and electrically connected to the first FPC portion 241. An FPC opening 2411 is provided on the first FPC portion 241 at a position corresponding to the call microphone 231 for picking up a sound signal by the call microphone 231 through the first FPC portion 241. The sound inlet hole of the microphone unit in the call microphone 231, the FPC opening 2411 and the sound inlet hole 141 are used for communicating the call microphone 231 and the outside of the earphone housing 1, and form a transmission channel of sound signals. In some embodiments, the transmission channel of the sound signal may be referred to as a microphone sound intake channel or a microphone sound pickup hole for transmitting an external sound signal to the call microphone 231 and being picked up by the call microphone 231. It should be understood that the call microphone 231 may include one or more microphone units, each of which may be an independent component, and a plurality of microphone units may be separately disposed, which is not limited in this embodiment of the present invention. For convenience of understanding and description, the embodiment of the present application is described by taking an example in which the talking microphone 231 includes one microphone unit. It should also be understood that each microphone unit includes the sound inlet hole of the corresponding microphone unit, and the plurality of microphone units may share one sound inlet hole 141, in other words, a sound signal entering from one sound inlet hole 141 may reach the sound inlet holes of the plurality of microphone units so as to be picked up by the plurality of microphone units.

The communication microphone 231, also called a microphone, a microphone head, a microphone core, or the like, is an energy conversion device that converts a sound signal into an electrical signal, and is a device having a function that is just reverse to that of the above-described speaker unit 21 (the speaker unit 21 is used to convert an electrical signal into a sound signal). The communication microphone 231 may be an electrodynamic (moving coil, aluminum ribbon) microphone, a condenser microphone, a piezoelectric (crystal, ceramic) microphone, an electromagnetic microphone, a semiconductor microphone, or the like, or may be a cardioid microphone, an acute-heart microphone, a hyper-heart microphone, a bidirectional (8-letter) microphone, or a non-directional (omni-directional) microphone, depending on the transduction principle of the microphone. The different sounds we hear are all generated by the slight pressure difference of the surrounding air, which can be transmitted by the air for a long distance perfectly and actually, that is, the sound is an invisible sound wave formed by different air pressures, which is called sound pressure wave in the embodiment of the present application. The call microphone 231 may convert the sound variation into a voltage or current variation through a specific mechanism, and then send the voltage or current variation to the circuitry for processing, wherein the sound intensity may be represented by sound pressure, corresponding to the amplitude of the voltage or current, and the speed of the sound variation corresponds to the frequency of the electrical signal. The talking microphone 231 includes a diaphragm, which transduces if sound is to cause vibration of the microphone diaphragm.

In an exemplary working principle of the moving-coil microphone, the vibrating diaphragm drives the coil to make a cutting magnetic induction line movement, so as to generate an electric signal. The aluminum strip type microphone uses an aluminum strip as a vibrating diaphragm, the aluminum strip is placed in a strong magnetic field, and when sound enables the aluminum strip to vibrate, the aluminum strip does cutting magnetic induction line movement, so that an electric signal is generated. The condenser microphone uses an extremely thin metal diaphragm as a first stage of a capacitor, and another metal back plate (about a few tenths of millimeters) with a very close distance as another pole, so that the vibration of the diaphragm can cause the change of the capacitance capacity to form an electric signal, wherein an Electret Condenser Microphone (ECM) is a special capacitance type 'sound-electricity' conversion device made of electret materials. In crystal microphones, the crystals change their electrical properties when they change shape, and by connecting the diaphragm to the crystals, the crystals will generate an electrical signal when sound waves strike the diaphragm. The operation principle of one microphone will be briefly described with reference to fig. 3, and the operation principles of other types of microphones are similar and will not be listed here.

As shown in fig. 3, the call microphone 231 is a Micro Electro Mechanical System (MEMS) microphone as an example. MEMS refers to a micro-electromechanical system that integrates a micro-sensor, an actuator, a signal processing and control circuit, an interface circuit, and a communication and power supply. A MEMS microphone, which is a microphone manufactured based on MEMS technology, is simply a capacitor integrated on a silicon wafer, and therefore, the MEMS microphone may also be referred to as a microphone chip or a silicon microphone. The MEMS microphone mainly includes a MEMS micro capacitive sensor, a micro integrated switching circuit (amplifier), an acoustic cavity, and a Radio Frequency (RF) anti-noise circuit. The MEMS micro-capacitor electrode head part comprises a silicon diaphragm and a silicon back electrode for receiving sound, the silicon diaphragm can directly transmit a received audio signal to the micro-integrated circuit through the MEMS micro-capacitor sensor, the micro-integrated circuit can convert and amplify a high-resistance audio signal into a low-resistance audio signal, and meanwhile, the low-resistance audio signal is filtered by the RF anti-noise circuit and outputs an electric signal matched with the front-end circuit to complete sound-electricity conversion.

Fig. 3(a) shows a schematic block diagram of a microphone unit, which may include a housing 61 formed with a cavity 611, a movable diaphragm 67 (also referred to as an acoustic membrane or an acoustic diaphragm) and a fixed backplate 62 disposed inside the cavity, an Application Specific Integrated Circuit (ASIC), and the like. As shown in fig. 3(b), the housing is provided with a sound inlet hole 69 of the microphone unit for picking up the sound signal 613, and the sound pressure wave 612 can enter the inside of the microphone unit through the sound inlet hole of the microphone unit. In the chamber, the diaphragm and the backplate are arranged oppositely, the diaphragm is positioned at one side close to the sound inlet hole of the microphone monomer and serves as a bottom capacitor plate 65 in the microphone monomer, and the diaphragm can be a thin solidThe structure is easy to bend, and when the pressure changes caused by sound waves or sound pressure waves act on the vibrating diaphragm, the vibrating diaphragm can be bent; the back plate is positioned on one side of the sound inlet hole far away from the microphone monomer and serves as a top capacitor pole plate 63 in the microphone monomer, the back plate has excellent rigidity, a through hole structure can be adopted, and the ventilation performance is excellent. When the air pressure changes caused by sound waves, the diaphragm can bend along with the air pressure changes, the back plate is thick and porous, and when the air flows through the back plate, the back plate keeps static. When the diaphragm vibrates, the capacitance between the diaphragm and the backplate will change. The ASIC device can convert this capacitance change into an electrical signal, and specifically, with reference to figure (b), the ASIC device utilizes a charge pump to place a fixed reference charge (e.g., V in the figure) on the microphone diaphragm₀) The ASIC measures a voltage change (e.g., V in the figure) when the diaphragm moves causing a change in capacitance between the diaphragm and the backplate_BIAS) Thereby completing the conversion of the sound signal into the electric signal.

Still referring to fig. 2, the earphone assembly 2 of the embodiment of the present application further includes a battery 25, a charging unit 26, a sensing device (not shown in the figure), and the like. Optionally, the headset assembly 2 further comprises an auxiliary sound receiving unit 27, the auxiliary sound receiving unit 27 may be a microphone, for example a microphone picking up background sound in a conversation scene.

The battery 25 may be disposed in the cavity formed by the earphone handle 13 and electrically connected to the flexible circuit board 24, specifically, the positive electrode and the negative electrode of the battery 25 are electrically connected to the flexible circuit board 24, respectively, and the charging of the battery 25 and the power supply of the battery 25 to the earphone assembly 2 may be realized through the circuit in the flexible circuit board 24. An antenna can be further disposed in the cavity formed by the earphone handle 13 for receiving and transmitting signals.

A charging unit 26 may be provided at the bottom of the headset for charging the battery 25, one end of which is connected to the flexible circuit board 24 inside the bottom case 14, and the other end of which may contact a metal contact inside the charging box outside the headset to form a charging loop. When the battery 25 is charged, the charging contacts of the earphone are in contact with the contacts in the charging box to form an electrical connection, and the charging current can flow from the positive charging contact to the positive electrode of the battery 25, then from the negative electrode of the battery 25 to the negative charging contact through the circuit on the flexible circuit board 24, and finally returns to the charging box.

In some embodiments, the sensing devices included in the earphone assembly 2 may include optical sensors, acceleration sensors, distance sensors, bone conduction sensors, etc., and these sensing devices may be disposed on the flexible circuit board 24 for sensing or receiving external signals, etc.

In some embodiments, the earphone assembly 2 further comprises an auxiliary sound receiving unit 27, wherein the auxiliary sound receiving unit 27 may be another microphone, thereby forming a dual microphone with the sound receiving unit 23, wherein the sound receiving unit 23 may be a microphone for ordinary user conversation use for collecting human voice (i.e. for picking up voice of conversation), and the auxiliary sound receiving unit 27 may be a microphone for picking up background sound with a background noise collecting function for collecting ambient noise. The auxiliary sound receiving unit 27 may be installed in a position apart from the sound receiving unit 23, within a cavity formed by the front case 11 and the rear case 12, and close to the rear case 12. The design of the double microphones can effectively resist the ambient noise interference around the earphone, and the definition of normal conversation is greatly improved.

It should be understood that the structure of the wireless headset shown in fig. 1 is merely exemplary, and in some other implementations, the wireless headset 100 may be other shapes and may be smaller or larger in size than the wireless headset 100. The structure of the earphone housing 1 is also only exemplary, and the earphone housing 1 may have other shapes, for example, the earphone housing 1 may not include the earphone handle 13, so as to reduce the overall size of the wireless earphone, or the earphone handle 13 may have a cylindrical or square shape, or the front housing 11 may have a regular cover shape or an asymmetric shape, and the embodiment of the present application is not limited in any way. In addition, the arrangement and type of each component of the earphone assembly 2 are also only exemplary, the type and number of the components included in the earphone assembly 2 may be selected according to the design performance of the wireless earphone and the design shape of the earphone, the arrangement of each component in the earphone assembly 2 may also be designed according to the shape of the earphone housing 1, for example, the battery 25 may be a button battery so as to be adapted to a smaller earphone cavity, the position of the battery 25 may also be set in a cavity formed by the front housing 11 and the rear housing 12, and the like, which are not limited in this embodiment.

Fig. 4 shows a schematic exploded view of part of the components of the headset assembly 2. As shown in fig. 2 and 4, a sound receiving unit 23, a charging unit 26, and a flexible circuit board 24 are provided in a cavity formed in the bottom case 14. In the wireless headset of the embodiment of the present application, the charging unit 26 includes two charging contacts (or called charging PINs), such as the charging contact 26a and the charging contact 26b shown in fig. 2 and fig. 4, an opening 142 is provided on the bottom case 14, and the two charging contacts respectively extend out of the headset through the two openings 142. One end of each charging contact is connected to the first FPC portion 241 of the flexible circuit board 24 and the other end is exposed out of the bottom case 14 for contacting with metal contacts in the charging box to charge the earphone battery 25. One of the two charging contacts is used as a charging positive electrode (or called a positive terminal or a positive charging terminal), and the other charging contact is used as a charging negative electrode (or called a negative terminal or a negative charging terminal). Because the positive pole and the negative pole of the battery 25 are also connected with the flexible circuit board 24, when the wireless earphone is placed in the charging box, two charging contacts of the charging unit 26 are contacted with the contacts in the charging box to form a charging loop, so that the battery 25 in the earphone can be charged.

The embodiment of the application provides a wireless headset can reduce wind noise. Still referring to fig. 1, in the wireless headset 100 of the embodiment of the present application, the bottom case 14 is provided with a plurality of sound inlet holes 141, and the plurality of sound inlet holes 141 may form microphone sound inlet channels that are communicated with each other. Thus, the wind sound signal can flow out from other sound inlet holes after entering from one sound inlet hole of the plurality of sound inlet holes 141, so that the wind sound signal acting on the diaphragm of the call microphone 231 is reduced, and the effect of reducing wind noise is achieved. Two sound inlet holes 141 are exemplarily shown in fig. 1, and the two sound inlet holes 141 are disposed between two openings 142 on the bottom case 14. Alternatively, the plurality of sound inlet holes 141 may be disposed at other positions of the bottom case 14 as long as the voice signal can be picked up by the call microphone through the sound inlet holes. Optionally, the positions of the sound inlet holes 141 and the position of the exposed diaphragm of the call microphone are staggered, so that the wind sound signals do not directly act on the diaphragm of the call microphone after passing through the sound inlet holes, and then the wind sound signals picked up by the microphone can be reduced, and the wind noise is reduced.

It should be understood that the "microphone sound inlet channel" in the embodiment of the present application may be a channel for a normal voice signal to be picked up by a microphone inside the earphone, but when a wind sound signal enters inside the earphone, the wind sound signal may also be picked up by the microphone through the microphone sound inlet channel. In the embodiment of the application, the plurality of sound inlet holes arranged on the bottom shell form the microphone sound inlet channels which are communicated with each other, so that wind noise can be reduced by reducing wind sound signals picked up by the microphone, namely, part of wind sound signals entering the inside of the earphone can not be picked up by the microphone, and flow out of the earphone through the microphone sound inlet channels which are communicated with each other. In other words, the "microphone sound inlet channel" in the embodiment of the present application may be used for the normal voice signal to be picked up by the microphone, and may also be used for the wind sound signal to directly flow out of the earphone without being picked up by the microphone.

As described above, in the wireless headset provided in the embodiment of the present application, the charging unit 26 is in the form of a charging contact, one end of which is connected to the flexible circuit board 24, and the other end of which is exposed out of the bottom case 14 so as to be in contact with the contact inside the charging box. Because the charging contact passes through the waterproof dustproof film 232 and the bottom shell 14 and is exposed outside the earphone, how to spatially arrange and arrange numerous components in a narrow space needs to be fully considered when the charging contact is arranged, so as to ensure that the installation positions of the components do not interfere, for example, the connection positions and the connection modes of the charging contact and the flexible circuit board 24 need to be designed, the positions and the sizes of the holes of the sound inlet holes 141 on the bottom shell 14, the positions and the sizes of the holes of the waterproof dustproof film 232, the positions of the holes of the bottom shell 14 and the holes of the waterproof dustproof film 232 need to be ensured to correspond, and the assembly gaps and the sealing of the charging contact and the holes of the bottom shell 14 ensure that dust and water cannot enter the earphone from the assembly gaps, and the like.

The embodiment of the application provides another wireless headset, on the basis of the wireless headset shown in fig. 1, the bottom case 14 is used as an electrode to replace a charging contact, and due to the fact that the design of the charging contact is omitted, the circuit board 24, the waterproof dustproof film 232 and the bottom case 14 do not need to be provided with holes for the charging contact to extend out of the exterior of the headset. Therefore, the complexity of structural design and process implementation can be reduced, and the space utilization rate inside the earphone shell 1 is increased, so that the structure of the wireless earphone is more compact, and the portable charging of the wireless earphone is realized. Similar to the wireless headset 100 shown in fig. 1, the bottom case 14 is provided with a plurality of sound inlet holes, and the effect of reducing wind noise can be achieved.

Fig. 5 shows a schematic block diagram of a wireless headset according to another embodiment of the present application. As shown in fig. 5, similar to the wireless headset 100, the wireless headset 200 also includes a headset housing and a headset assembly accommodated in the headset housing, wherein the headset housing of the wireless headset 200 includes a headset handle 33 (corresponding to the headset handle 13) and a bottom case 34 (corresponding to the bottom case 14), wherein a part or all of the bottom case 34 is made of a conductor material (e.g., a metal material) for directly contacting with a contact of the charging box to charge the headset battery. The wireless headset 100 and the wireless headset 200 are similar in structure, and differences of the wireless headset 200 with respect to the wireless headset 100 will be described below, and details that are not described in detail can be found in the related description of the wireless headset 100.

In order to reduce wind noise, bottom shell 34 is provided with a plurality of sound inlet holes 341 (corresponding to sound inlet hole 141), and sound inlet holes 341 are used to communicate the outside of the earphone with the internal cavity of the earphone, so that an external sound signal enters the inside of the earphone through sound inlet holes 341 and is picked up by a call microphone inside the earphone cavity. It is understood that the number, shape and arrangement position of the plurality of sound inlet holes 341 can be adaptively designed and selected by those skilled in the art according to actual needs.

In some implementations, the number of the sound inlet holes 341 may be set to be, for example, 2, 3, 4, 6, or even more, the sound inlet holes 341 may be set at any position of the bottom chassis 34, and the design of the sound inlet holes 341 may enable a sound signal of a user to enter the earphone through the sound inlet hole 341 when the user speaks in all directions, so as to be picked up by the talking microphone. This a plurality of sound inlet 341 form the microphone sound inlet channel of mutual intercommunication, and the structural design of a plurality of sound inlet and a plurality of microphone sound inlet channel of mutual intercommunication can make the structure sound inlet channel back in the wind sound signal gets into drain pan 34, and partial energy is shunted through other sound inlet, can reduce the wind sound energy of being used in on conversation microphone vibrating diaphragm to reduce the wind noise that the conversation microphone picked up and got, reach the effect that reduces the wind noise. It should be understood that the structure of wireless headset 200 in fig. 5 is merely exemplary, and the shape of bottom housing 34 and the number and positions of sound inlet holes 341 are also merely exemplary, and do not limit the embodiments of the present application in any way.

It will be appreciated that bottom housing 34 and earphone handle 33 may be two separate components. Bottom housing 34 and earphone handle 33 are snap-fit to form a cavity inside the earphone during assembly. In some other implementations, bottom housing 34 and earphone handle 33 may also be one component, i.e., bottom housing 34 and earphone handle 33 may be a unitary structure, such as injection molded. Bottom housing 34 may have any simple or complex shape, bottom housing 34 may have a uniform or non-uniform thickness, a cross-sectional shape of a cavity formed in bottom housing 34 in a bottom view direction may be square, oval, circular, a combination of two semi-circles and a square, and the like, and a cavity formed in bottom housing 34 may be hemispherical, arc-shaped, or cylindrical, and the like, which is not limited in this embodiment of the application.

For brevity, when not specifically illustrated, reference may be made to the above description of the headset assembly 2 of the wireless headset 100 for the wireless headset 200 shown in fig. 5 and the headset assembly in the following embodiments. In some embodiments, the same reference numbers are used for illustration as for the headset assembly of the wireless headset 100. As described in detail below in conjunction with fig. 6-12.

Fig. 6 shows a schematic block diagram of a wireless headset provided by an embodiment of the present application. The bottom case 44 has charging terminals including a positive charging terminal and a negative charging terminal spaced apart by an insulating material. In other words, the bottom chassis may serve as a charging positive electrode and a charging negative electrode. Specifically, the earphone shell comprises a bottom shell, the bottom shell comprises a first bottom shell part and a second bottom shell part which are separated by an insulating material, the first bottom shell part is a charging anode, and the second bottom shell part is a charging cathode.

Referring to fig. 6, for convenience of understanding and description, the embodiment of the present application is described by taking an example in which the outer surface of the bottom case 44 is formed in a hemispherical shape, and the bottom case 44 is snap-coupled to the earphone handle 43. As shown in fig. 6, the bottom case 44 includes a first bottom case portion 442, a second bottom case portion 443, and a third bottom case portion 444, wherein the first bottom case portion 442 and the second bottom case portion 443 are made of a conductive material, such as a metal material (e.g., copper, iron, aluminum, gold, alloy, etc.), and the third bottom case portion 444 is made of an insulating material, such as a plastic material. Wherein the third bottom case portion 444 is located between the first bottom case portion 442 and the second bottom case portion 443. The third bottom case portion 444 may separate the first bottom case portion 442 and the second bottom case portion 443. In the embodiment of the present application, the first bottom case portion 442 and the second bottom case portion 443 are respectively used as the positive electrode and the negative electrode of the wireless headset, and correspond to the positive electrode and the negative electrode of the charging spring inside the charging box. For example, the first bottom case portion 442 can be a charging positive electrode corresponding to the charging positive electrode elastic piece 801 of the charging box, and the second bottom case portion 443 can be a charging negative electrode corresponding to the charging negative electrode elastic piece 802 of the charging box; or the first bottom case portion 442 may be a charging cathode corresponding to the charging cathode elastic piece 801 of the charging box, and the second bottom case portion 443 may be a charging anode corresponding to the charging anode elastic piece 802 of the charging box. In other words, the bottom case portion serving as the positive electrode for charging on the bottom case 44 corresponds to the charging spring serving as the positive electrode in the charging box, and the bottom case portion serving as the negative electrode for charging corresponds to the charging spring serving as the negative electrode in the charging box. Those skilled in the art can design each part of the bottom shell 44 accordingly according to the positive and negative electrodes of the charging spring in the charging box and the charging circuit. It should be understood that, in the embodiment of the present application, the charging spring is merely an example, and the component disposed in the charging box for charging the wireless headset is not limited to the charging spring, but may also be a charging contact, a charging block, a charging surface, and other components that can conduct current, and the embodiment of the present application is not particularly limited.

In one implementation, a recess may be disposed on an outer wall of the bottom housing 44, and the recess may be in fit contact with a charging component in the charging box, such as a charging spring, a charging contact, a charging block, a charging surface, and the like. The recess can also be used to position and/or limit the position of the wireless headset within the charging box. The concave part can be in the shape of a groove, a hole, a concave surface and the like, and the embodiment of the application is not limited at all. It should be understood that the recess should be of a conductive material.

The bottom case 44 may be provided with one or more sound inlet holes 441. In an implementation scheme, if only one sound inlet hole 441 is disposed on bottom case 44, the sound inlet hole 441 may be disposed on third bottom case portion 444 (i.e., an insulating material), or may be disposed on first bottom case portion 442 or second bottom case portion 443, and the embodiment of the present invention is not limited in particular. In this embodiment, a sound inlet hole 441 is formed in the bottom case 44, and although the wind noise reduction effect is general, the complexity of the structural design and the process implementation can be reduced by using the bottom case as the charging positive electrode and the charging negative electrode. In another implementation, if a plurality of sound inlet holes 441 are provided on bottom case 44, the plurality of sound inlet holes 441 may be provided on any one of first bottom case portion 442, second bottom case portion 443, and third bottom case portion 444. Alternatively, the plurality of sound inlet holes 441 are disposed on the insulating material (i.e., the third bottom case portion 444), for example, 2 sound inlet holes 441 are disposed on the third bottom case portion 444. The sound inlet holes 441 may also be disposed on at least two of the first bottom case portion 442, the second bottom case portion 443, and the third bottom case portion 444, for example, if the number of the sound inlet holes 441 is 3, one sound inlet hole may be disposed on each of the first bottom case portion 442, the second bottom case portion 443, and the third bottom case portion 444, which is not particularly limited in the embodiment of the present application.

In an implementation scheme, the plurality of sound inlet holes 441 can be uniformly arranged on the bottom shell, so that voice signals in all directions can be picked up by the wireless earphone, and conversation experience is improved.

In one implementation, the plurality of sound inlet holes 441 includes two sound inlet holes whose axes coincide. Because wind generally has a direction, when the axes of the two sound inlet holes are overlapped, the wind sound signal is allowed to flow out from the other sound inlet hole after entering the earphone from one sound inlet hole, the attenuation effect on the wind sound signal is better, and the wind noise reduction effect is better.

It should be understood that the proportions of the first bottom case portion 442, the second bottom case portion 443, and the third bottom case portion 444 in the earphone bottom case 44 may be the same as the three, or may be the same as the two (for example, the proportion of the first bottom case portion 442 in the earphone bottom case 44 is the same as the proportion of the second bottom case portion 443 in the earphone bottom case 44), or may be completely different from the two, and this embodiment of the present application is not specifically limited, and the shape of the first bottom case portion 442, the second bottom case portion 443, and the third bottom case portion 444 is also not specifically limited in this embodiment of the present application.

It is also understood that the first and second bottom housing portions 442, 443 may be the same material and may differ. For example, the same metal conductive material may be used for the first bottom case portion 442 and the second bottom case portion 443, which can ensure a stable charging process. The first bottom case portion 442 and the second bottom case portion 443 may also be made of different metal conductive materials, and the embodiment of the present application is not limited in any way. The third bottom case portion 444 may include one insulating material, may include a plurality of insulating materials, and is not particularly limited in this embodiment.

It should be noted that, in the embodiment of the present application, the outer surface of the bottom shell 44 is hemispherical, and in other implementation manners, the bottom shell 44 may also be in any other shape, for example, the outer surface (or outer wall) of the bottom shell 44 is circular arc-shaped, cylindrical, square, conical, elliptical, curved, and the like, and the specific structure for charging is similar to the structure in which the bottom shell 44 is hemispherical, and therefore, details thereof are not described herein.

In one embodiment, the bottom housing 44 and the earphone handle 43 may be two separate parts or may be one part integrally injection molded.

In one implementation, the charging tabs 801 and 802 may be in the form of charging contacts, charging blocks, charging surfaces, or the like.

The earphone assembly inside the earphone cavity is similar to that described above and will not be described herein. Corresponding differences are described below in connection with fig. 7 for some of the components involved in the bottom shell 44 provided in fig. 6.

Fig. 7 shows an exploded view of a wireless headset according to an embodiment of the present application, and in particular, fig. 7 may be an exploded view of the wireless headset shown in fig. 6. Referring to fig. 7, the first bottom case portion 442 includes a first connecting portion 4421 for electrically connecting with the flexible circuit board FPC 24, for example, the first connecting portion 4421 may be soldered, welded or spring-loaded with the FPC 24 (or the first FPC portion 241), wherein the soldering may be ultrasonic soldering or the like. The second bottom case portion 443 includes a second connection portion 4431 for electrically connecting with the flexible circuit board FPC 24, for example, the second connection portion 4431 may be soldered, welded or spring-loaded with the FPC 24 (or the first FPC portion 241), wherein the soldering may be ultrasonic soldering or the like. The first connection part 4421 and the second connection part 4431 are not in direct contact. The position of the first connection part 4421 electrically connected to the FPC 24 and the position of the second connection part 4431 electrically connected to the FPC 24 correspond to the positions of the first and second bottom case portions 442 and 443 connected to be a charging positive electrode or a charging negative electrode, respectively. In other words, when the first bottom case portion 442 serves as a charging anode, the first connecting portion 4421 is connected to an anode of the FPC 24, and when the second bottom case portion 443 serves as a charging anode, the second connecting portion 4431 is connected to a cathode of the FPC 24, thereby forming a complete circuit, and vice versa. When the battery 25 needs to be charged, the earphone can be placed in the charging box, and the first bottom shell portion 442 and the second bottom shell portion 443 are correspondingly contacted with the charging positive electrode elastic sheet 801 and the charging negative electrode elastic sheet 802 in the earphone box, so as to form a complete charging loop.

In one implementation, the inner wall of the first connection portion 4421 is soldered to the first FPC portion 241, and the inner wall of the second connection portion 4431 is soldered to the first FPC portion 241. In some implementations, the first and second connection parts 4421 and 4431 may be located on an inner wall of the bottom case 44. In other words, the first FPC portion 241 may be soldered on the inner wall of the bottom chassis 44. That is, the inner side wall of the bottom case may be connected to the circuit board, for example, the inner walls of the first bottom case portion 442 and the second bottom case portion 443 are respectively electrically connected to the flexible circuit board 24, so that the integrity of the waterproof and dustproof film inside the earphone may be ensured, and the opening design is not required to be performed thereon, thereby simplifying the structural design.

In one implementation, if the earphone handle 43 and the bottom case 44 are snap-fit connected, the first connecting portion 4421 and the second connecting portion 4431 may be used as a snap-fit part of the earphone handle 43 and the bottom case 44, wherein the first connecting portion 4421 and the second connecting portion 4431 extend along the inner wall of the earphone handle 43 toward the rear case.

In one implementation, the third bottom case portion 444 may include a third connection part 4441 for isolating the first connection part 4421 and the second connection part 4431. When the earphone handle 43 and the bottom case 44 are coupled by the engagement, the third connecting portion 4441 may be formed as an engagement portion between the earphone handle 43 and the bottom case 44. Wherein the third connecting portion 4441 extends along the inner wall of the earphone handle 43 toward the rear housing.

Fig. 8 is a schematic diagram illustrating a connection relationship of a part of a headset assembly of a wireless headset according to an embodiment of the present application. As shown in fig. 8, the bottom case 44 of the embodiment of the present application includes a first bottom case portion 442 and a second bottom case portion 443 separated by an insulating material, for example, the first bottom case portion 442 is a charging positive electrode (positive charging terminal) and the second bottom case portion 443 is a charging negative electrode (negative charging terminal), the first bottom case portion 442 and the second bottom case portion 443 are respectively electrically connected to the flexible circuit board 24, and the positive electrode and the negative electrode of the battery 25 are also respectively electrically connected to the flexible circuit board 24. When the battery 25 is charged, the charging current flows from the charging spring 801 to the first bottom case portion 442 (charging positive electrode), and then flows from the first bottom case portion 442 to the positive electrode of the battery 25 through the charging circuit in the flexible circuit board 24; the charging current flows from the negative electrode of the battery 25 to the second bottom casing portion 443 (charging negative electrode) through the charging circuit of the flexible circuit board 24, and then flows back to the charging spring 802 through the second bottom casing portion 443, and finally a charging loop is formed, so that the battery 25 is charged. Illustratively, the connection relationship between the bottom case 44, the flexible circuit board 24, and the battery 25 is shown by a dotted line in fig. 8.

Because the first bottom shell portion 442 and the second bottom shell portion 443 included in the bottom shell 44 are respectively used as a positive electrode and a negative electrode for charging and are electrically connected with the flexible circuit board 24, and do not need to pass through the waterproof dustproof film 232 and then be exposed outside the earphone, the waterproof dustproof film 232 does not need to be perforated, processes such as perforating the waterproof dustproof film 232 and aligning the charging contact holes are omitted, the processing and assembling processes are simplified, the complexity of structure and process implementation is reduced, and the space utilization rate of the cavity formed by the bottom shell is increased. The mounting position of the earphone assembly in the bottom case will be described below with reference to the accompanying drawings, which will not be described in detail herein.

Fig. 9 shows a schematic block diagram of a wireless headset according to another embodiment of the present application. The bottom case has a charging terminal that is one of a positive charging terminal or a negative charging terminal, the other of which is provided separately from the bottom case. In other words, the bottom case can be used as the charging anode, and the charging cathode is disposed separately from the bottom case, that is, the charging cathode is not on the bottom case or does not belong to a part of the bottom case; or the bottom shell can be used as a charging cathode, and the charging anode is separated from the bottom shell, that is, the charging anode is not on the bottom shell or does not belong to a part of the bottom shell. Specifically, the earphone shell comprises a bottom shell, the bottom shell is one of a charging anode and a charging cathode, and the other of the charging anode and the charging cathode is separated from the bottom shell.

Referring to fig. 9, for convenience of understanding and description, the embodiment of the present application is described by taking an example in which the outer surface of the bottom case 54 is formed in a hemispherical shape, and the bottom case 54 is snap-coupled to the earphone handle 53. As shown in fig. 9, all of the bottom chassis 54 in the embodiment of the present application are made of a conductive material, such as a metal material, and the whole bottom chassis 54 serves as a charging positive electrode or a charging negative electrode. Alternatively, portions of the bottom shell 54 may be a conductive material, with the bottom shell of the conductive material serving as a positive or negative charge electrode. It should be understood that the bottom shell 54 is made of a conductive material and the portion of the bottom shell 54 is made of a conductive material, and both the bottom shell and the charging box are made of a conductive material, and in this embodiment of the present application, the bottom shell is made of a conductive material and corresponds to the charging elastic pieces 801 and 802 in the charging box. That is, one charging electrode corresponds to the charging springs 801 and 802 in the charging box. In other words, when the bottom case 54 serves as a charging positive electrode, the charging elastic pieces 801 and 802 in the charging box serve as charging positive electrode elastic pieces. When the bottom shell 54 is used as a charging cathode, the charging elastic pieces 801 and 802 in the charging box are charging cathode elastic pieces. The bottom shell 54 is in contact with the charging spring pieces 801 and 802 in the charging box during charging. Two charging domes 801 and 802 are exemplarily shown in fig. 9, but it should be understood that the number of charging domes in the charging box may be one or more, for example, 1, 3, 4 or more charging domes, and the plurality of charging domes is beneficial to improve the stability of the headset placed in the charging box. Another of the positive and negative charging electrodes may be a charging contact disposed on another portion of the earphone housing, such as the front housing 11, the rear housing 12 or the earphone handle 13 shown in fig. 1 or fig. 2, where one end of the charging contact is connected to the FPC 24, and the other end of the charging contact extends out of the earphone housing and is used for connecting to a metal contact pin at a corresponding position in the charging box. When the earphone is placed in the charging box, the bottom shell 54 is in contact conduction with the charging elastic sheets 801 and 802, and the charging contact of the wireless earphone is in contact conduction with the metal contact pin at the corresponding position in the charging box, so that a charging loop is formed. The charging contact serves as a charging cathode when the bottom case 54 serves as a charging anode. Or as a charging positive electrode when the bottom case 54 serves as a charging negative electrode.

In one implementation, the bottom shell 54 is one of a positive and negative charging electrode, and the other of the positive and negative charging electrode is disposed on the rear case 12.

In one implementation, a recess may be provided on an outer wall of the bottom shell 54, and the recess may be in fit contact with a charging component in the charging box, such as a charging spring, a charging contact, a charging block, a charging surface, and the like. The recess can also be used to position and/or limit the position of the wireless headset within the charging box. The concave part can be in the shape of a groove, a hole, a concave surface and the like, and the embodiment of the application is not limited at all. It should be understood that the recess should be of a conductive material.

One or more sound inlet holes 541 are disposed on the bottom shell 54, and the location of the one or more sound inlet holes 541 is not specifically limited in the embodiment of the present application, and the detailed description may refer to the above description of the bottom shell 44, and is not repeated herein.

It should be noted that, in the embodiment of the present application, the outer surface of the bottom shell 54 is a hemisphere. In other implementations, the bottom shell 54 may have other shapes, such as a circular arc, a cylinder, a square, a cone, an oval, a curved surface, etc. on the outer surface of the bottom shell 54, and the specific structure for charging is similar to the structure of the bottom shell 54 having a hemispherical shape, which will not be described in detail herein.

In one embodiment, the bottom shell 54 and the earphone handle 53 may be two separate parts or may be one part integrally injection molded.

In one implementation, the charging springs 801 and 802 may be in the form of charging contacts, charging blocks, charging surfaces, etc. made of metal.

The earphone assembly inside the earphone cavity is similar to that described above and will not be described herein. Corresponding differences are described below in connection with fig. 10 for some of the components involved in the bottom shell 54 provided in fig. 9.

Fig. 10 shows an exploded schematic view of a wireless headset according to another embodiment of the present application, and in particular, fig. 10 may be an exploded schematic view of the wireless headset shown in fig. 9. Referring to fig. 10, the bottom chassis 54 includes a fourth connection portion 542 for electrically connecting with the flexible circuit board FPC 24, for example, the fourth connection portion 542 may be soldered, welded or spring-loaded to the FPC 24 (or the first FPC portion 241), wherein the soldering may be ultrasonic soldering or the like.

In one implementation, the inner wall of the fourth connection portion 542 is soldered to the first FPC portion 241. In some implementations, the fourth connection portion 542 is located on an inner wall of the bottom chassis 54, in other words, the first FPC portion 241 may be soldered on the inner wall of the bottom chassis 54. That is to say, the inside wall of drain pan can be connected with the circuit board, can guarantee the integrality of the inside waterproof dustproof membrane of earphone etc. like this, need not to do the trompil design on it, simplifies structural design.

In one implementation, if the earphone handle 53 and the bottom shell 54 are connected in a snap-fit manner, the fourth connecting portion 542 can serve as a snap-fit portion of the earphone handle 53 and the bottom shell 54. Wherein the fourth connecting portion 542 extends in the rear-housing direction along the inner wall of the earphone handle 53. The earphone component of the wireless earphone provided by the embodiment of the application is similar to that described above, and specific reference may be made to the above description, which is not repeated herein.

Fig. 11 is an exploded view of a wireless headset according to another embodiment of the present application. For example, the bottom chassis shown in the figures may be the bottom chassis 54 shown in fig. 9 or 10, the bottom chassis 54 serves as one of the positive and negative charging electrodes (e.g., a positive charging electrode or a negative charging electrode), and the fourth connection portion 542 and the first FPC portion 241 may be connected by welding. A charging contact 261 is provided at a bottom position of the wireless headset head (e.g., a position of the rear case 12 near the bent portion shown in fig. 1), one end of the charging contact 261 is connected to the other end of the FPC 24 (e.g., the second FPC portion 242), and the other end of the charging contact 261 protrudes out of the headset case. When the wireless earphone is placed in the charging box, the bottom shell 54 contacts with the charging spring sheets 801 and 802 in the earphone box, and the charging contact 261 contacts with the charging contact pin 803 in the earphone box to form a loop. For example, the headset case may charge the headset battery.

Fig. 12 is a schematic diagram illustrating a connection relationship of a part of a headset assembly of a wireless headset according to another embodiment of the present application. As shown in fig. 12, the bottom case 54 in the embodiment of the present application includes one of positive and negative charging electrodes. Taking the case that the bottom case 54 includes the charging positive electrode (i.e. the bottom case 54 is the charging positive electrode), the charging negative electrode is disposed separately from the bottom case 54, the charging positive electrode and the charging negative electrode are respectively electrically connected to the flexible circuit board 24, and the positive electrode and the negative electrode of the battery 25 are respectively electrically connected to the flexible circuit board 24. When the battery 25 is charged, the charging current flows from the charging spring 802 to the bottom shell 54 (i.e. the charging positive electrode), and then flows from the bottom shell 54 to the positive electrode of the battery 25 through the charging circuit in the flexible circuit board 24; the charging current flows from the negative electrode of the battery 25 to the charging contact 261 (i.e. charging negative electrode) through the charging circuit of the flexible circuit board 24, and then flows back to the charging contact pin 803 from the charging contact 261, and finally forms a charging loop, so as to charge the battery 25. Illustratively, the connection relationship between the bottom case 54, the flexible circuit board 24, and the battery 25 is shown by a dotted line in fig. 12. The battery 25 is electrically connected to the flexible circuit board 24, one end of the flexible circuit board 24 is electrically connected to the bottom case 54, and the other end of the flexible circuit board 24 is electrically connected to the other of the charging positive and negative electrodes (for example, the charging contact 261) of the wireless headset.

Because the bottom shell 54 is used as a charging electrode, the waterproof dustproof film 232 does not need to penetrate through the waterproof dustproof film 232 and then is exposed outside the earphone, so that the waterproof dustproof film 232 does not need to be perforated, processes such as perforating the waterproof dustproof film 232 and aligning the charging contact holes are omitted, the processing and assembling processes are simplified, the complexity of structure and process realization is reduced, and the space utilization rate of a cavity formed by the bottom shell is increased. In addition, the bottom shell is used as a charging electrode, and the bottom shell can be made of conductor materials, so that the processing technology of the shell is simplified.

Fig. 13 is an exploded view of a wireless headset disposed in a charging box according to an embodiment of the present disclosure, and as shown in fig. 13, the charging box 8 may include a charging box body 81 and a charging box cover 82, wherein an accommodating space is provided in the charging box body 81 for accommodating the wireless headset, and the charging box cover 82 is used for covering the accommodating space. The charging box body 81 and the charging box cover 82 can be connected in a rotatable or snap-fit manner, that is, the charging box body 81 and the charging box cover 82 can be rotated relatively or the charging box cover 82 can be separated from the charging box body 81. Wherein, can hold two wireless earphones in the box 8 that charges, be left ear earphone and right ear earphone respectively. In some implementations, one of the wireless headsets may be a master headset as described above, the other wireless headset may be a slave headset as described above, and the master and slave headsets may be connected via wireless bluetooth. Charging spring pieces such as a charging spring piece 801 and a charging spring piece 802 are arranged in an accommodating space for accommodating each wireless headset in the charging box main body 81. In some implementations, if the bottom case of the wireless headset is used as the charging positive electrode and the charging negative electrode, the charging elastic piece 801 and the charging elastic piece 802 may be used as the charging positive electrode elastic piece and the charging negative electrode elastic piece, respectively, corresponding to the charging positive electrode and the charging negative electrode of the bottom case, where the charging positive electrode elastic piece corresponds to the charging positive electrode of the bottom case, and the charging negative electrode elastic piece corresponds to the charging negative electrode of the bottom case. In other implementations, if the bottom case of the wireless headset is used as one of a positive charging pole and a negative charging pole, for example, the bottom case is used as the positive charging pole or the negative charging pole, the charging elastic sheet 801 and the charging elastic sheet 802 are both positive charging elastic sheets or both charging negative elastic sheets, and corresponding to one of the positive charging pole and the negative charging pole of the bottom case, for example, the bottom case is the positive charging pole, the charging elastic sheet 801 and the charging elastic sheet 802 are both positive charging elastic sheets, and the bottom case is the negative charging pole, and both the charging elastic sheet 801 and the charging elastic sheet 802 are both negative charging elastic sheets. In addition, a charging contact pin 803 is provided in the housing space of the charging box main body 81 for housing each wireless headset, for contacting another charging electrode (i.e., the charging contact 261) on the headset. With particular reference to fig. 14 and 15, fig. 14 shows a schematic view of a wireless headset placed in a charging box, and fig. 15 shows a schematic perspective view of a wireless headset placed in a charging box.

Referring to fig. 15, the present embodiment provides a charging box including a charging box main body 81 and a charging box cover 82. The charging box body 81 is provided with an accommodating space for accommodating a wireless headset, and the charging box cover 82 is used for covering the accommodating space. This accommodation space is including the bottom holding tank that is equipped with the charging electrode for hold the drain pan of wireless earphone, the charging electrode that sets up in the bottom holding tank corresponds the charging electrode on the drain pan. If the bottom shell of the wireless earphone is used as one of the positive electrode and the negative electrode for charging, the accommodating space comprises a bottom accommodating groove provided with a charging electrode corresponding to the bottom shell, namely the charging electrode in the bottom accommodating groove is one of the positive electrode and the negative electrode. The charging electrode corresponding to the other one of the charging positive and negative electrodes of the bottom shell is not arranged in the bottom accommodating groove. For example, the bottom case is a charging positive electrode, the bottom accommodating groove of the charging box is provided with positive charging elastic pieces 801 and 802, and the charging negative electrode of the charging box is not disposed in the bottom accommodating groove, for example, the charging negative electrode may be disposed in a position corresponding to the head of the wireless headset or a position corresponding to the handle of the headset in the accommodating space, which is not specifically limited in the embodiment of the present application. Specifically, the bottom case is a charging anode, the charging cathode of the wireless headset can be disposed on the rear case of the headset, and the electrode corresponding to the charging cathode of the wireless headset is disposed on the charging box and corresponds to the rear case. In some possible solutions, if the bottom case of the wireless headset serves as a charging positive electrode and a charging negative electrode, for example, the first bottom case portion is the charging positive electrode, and the second bottom case portion is the charging negative electrode, the accommodating space includes a bottom accommodating groove provided with charging electrodes corresponding to the first bottom case portion and the second bottom case portion, respectively. For example, when the bottom case is used as a charging positive electrode and a charging negative electrode, the bottom accommodating groove of the charging box is provided with a positive charging spring plate 801 and a negative charging spring plate 802.

The content of the bottom case of the wireless headset for the charging electrode is described in detail above with reference to fig. 5-15, and the connection relationship between the bottom case and the headset assembly and the structure of the bottom case are described in detail below with reference to fig. 16-19 on the basis of the foregoing description.

Fig. 16(a) and (b) are schematic structural diagrams illustrating a bottom case of a wireless headset according to an embodiment of the present application. The bottom case may be the bottom case 44 shown in fig. 6 or fig. 7, or may be the bottom case 54 shown in fig. 9 or fig. 10, and for convenience of understanding and description, the bottom case 54 is taken as an example in the embodiment of the present application. Referring to fig. 16(a) and (b), the outer surface of the bottom shell 54 is hemispherical or circular, and in some other implementations, the outer surface of the bottom shell 54 may be any other simple or complex, single or combined surface, for example, the outer surface of the bottom shell 54 may be an elliptical surface, a conical surface, a cylindrical surface, a prismatic surface, a pyramidal surface, a curved surface, or the like. The inner wall of the bottom shell 54 may include a bottom surface 543 and a side surface 544, wherein the bottom surface 543 is substantially planar, the side surface 544 may be a curved surface or a flat surface, and in some implementations, the side surface 544 may be substantially perpendicular to the bottom surface 543.

The bottom surface 543 is provided with an opening 5431 communicating with the outside of the earphone for external sound signals to enter the microphone. In some implementations, a space between the bottom surface 543 of the inner wall of the bottom case 54 and the outer surface of the bottom case 54 may be filled with a bottom case material. The portion between the bottom surface 543 of the inner wall of the bottom case 54 and the outer surface of the bottom case 54 is solid, the opening 5431 extends to the outside of the bottom case 54 through the solid portion between the bottom surface 543 of the inner wall of the bottom case 54 and the outer surface of the bottom case 54, and the sound inlet hole 541 is formed in the outer surface of the bottom case 54, so that a sound signal enters the inside of the earphone through a sound channel between the sound inlet hole 541 and the opening 5431 to be picked up by the microphone. In other implementations, a cavity may be formed between the bottom surface 543 of the inner wall of the bottom case 54 and the outer surface of the bottom case 54, the opening 5431 extends from the bottom surface 543 of the inner wall of the bottom case 54 to the cavity, a sound inlet hole 541 is further provided at a portion of the outer surface of the bottom case 54 for forming the cavity, the sound inlet hole 541 extends from the outer surface of the bottom case 54 to the cavity, and a sound signal for the outside of the earphone enters the cavity through the sound inlet hole 541 and reaches the opening 5431 to be picked up by the microphone.

The side surface 544 may be provided with a protrusion 5441 for support and positioning. Still referring to fig. 11 and 16(a) and 16(b), the bottom surface 543 in fig. 16(a) and 16(b) is substantially planar, the waterproof and dustproof film 232 may be disposed on the bottom surface 543, the first FPC portion 241 may be disposed on the protrusion 5441, two sides of the waterproof and dustproof film 232 are covered with adhesive layers, one side of the adhesive layer is attached to the bottom surface 543, and the other side is attached to the first FPC portion 241, so that the first FPC portion 241 and the waterproof and dustproof film 232 are both fixed to the bottom case 54.

The wireless earphone that this application embodiment provided, with the drain pan of earphone and two unifications of charging electrode, through utilizing the drain pan as charging electrode, saved the independent design of the contact that charges in the cavity of drain pan formation, simplified structural design, reduced the complexity that structural design and technology realized, realize that a thing is multi-purpose. In addition, the arrangement of the contacts on the flexible circuit board can be reduced by omitting the independent design of the charging contacts, the space occupied by the charging contacts is reduced, and the space utilization rate is increased. Still referring to (a) and (b) of fig. 16, in the above description, the bottom surface 543 of the inner wall of the bottom shell 54 and the outer surface of the bottom shell 54 may be solid or form a cavity, and if only one sound inlet hole 54 leading from the outside of the earphone to the talking microphone 231 is provided, the design of the single sound inlet hole still has the problem of wind noise. In the embodiment of the present application, a single sound inlet on the bottom shell is changed into a structural design with a plurality of sound inlets, that is, the sound inlet 541 may also be provided with a plurality of sound inlets, for example, 2, 3, 4 or more sound inlets, and the plurality of sound inlets form a plurality of microphone sound inlet channels that are communicated with each other. The structural design of the porous sound inlet and the plurality of microphone sound inlet channels communicated with each other can ensure that after wind sound signals enter the sound inlet channels in the bottom shell of the structural earphone, partial energy is shunted through other holes, and wind sound energy acting on a diaphragm of a conversation microphone can be reduced, so that wind noise picked up by the conversation microphone is reduced, and the effect of reducing the wind noise is achieved.

For example, a cavity may be formed between the bottom surface 543 of the inner wall of the bottom case 54 and the outer surface of the bottom case 54, the opening 5431 extends from the bottom surface 543 of the inner wall of the bottom case 54 to the cavity, a plurality of sound inlet holes 541 are further provided at a portion of the outer surface of the bottom case 54 for forming the cavity, the plurality of sound inlet holes 541 extend from the outer surface of the bottom case 54 to the cavity, the plurality of sound inlet holes 541 form microphone sound inlet channels that communicate with each other, and a sound signal for the outside of the earphone enters the cavity through the plurality of sound inlet holes 541 and reaches the opening 5431 to be picked up by the microphone. The plurality of sound inlet holes 541 may be dispersedly disposed (e.g., uniformly disposed) on the bottom case 54, and the plurality of sound inlet holes 541 may allow voice signals in various directions to be picked up by the call microphone, but may split wind sound signals entering the cavity to reduce the wind sound signals picked up by the call microphone.

In one implementation, the plurality of sound inlet holes 541 includes two sound inlet holes that are oppositely disposed, that is, two sound inlet holes of the plurality of sound inlet holes are oppositely disposed. In other words, the axes of two of the plurality of sound inlet holes 541 coincide. The wind generally has a direction, and the axes of the two sound inlet holes are overlapped (or oppositely arranged), so that the wind sound signal can be allowed to flow out from one sound inlet hole of the two sound inlet holes after entering the cavity from the other sound inlet hole, and the attenuation effect on the wind sound signal is better. It should be understood that the path of the sound signal from the sound inlet hole 541 to the microphone in the embodiment of the present application may also be understood as a microphone sound inlet channel or a sound channel.

For another example, if the portion between the bottom surface 543 of the inner wall of the bottom shell 54 and the outer surface of the bottom shell 54 is a solid body, the opening 5431 extends to the outside of the bottom shell 54 through the solid body portion between the bottom surface 543 of the inner wall of the bottom shell 54 and the outer surface of the bottom shell 54, so as to form a plurality of sound channels (i.e., microphone sound inlet channels) which are communicated with each other, and a plurality of sound inlet holes 541 are formed at the outer surface of the bottom shell 54, so that a sound signal can enter the earphone through the microphone sound inlet channel between the sound inlet holes 541 and the opening 5431 and be picked up by the microphone. In other words, sound signals may pass from outside the bottom shell 54 to the opening 5431 through multiple microphone sound intake channels. The plurality of microphone sound inlet channels may diverge from the opening 5431, or may cross each other through a section of common sound inlet channel communication opening 5431. The sound inlet holes 541 formed on the outer surface of the earphone bottom 54 by the plurality of microphone sound inlet channels may be distributed (e.g., uniformly distributed) on the outer surface of the bottom 54.

In one implementation scheme, the included angle between the center lines of two microphone sound inlet channels in the mutually communicated microphone sound inlet channels is 90-180 degrees. Therefore, the wind sound signal can enter from one microphone sound inlet channel and flow out from the other microphone sound inlet channel, and the wind sound signal attenuation effect is better.

In one implementation, the plurality of microphone sound inlet channels may be straight, curved, dog-leg, curved, wavy, or otherwise shaped.

In one implementation, the cross-section of the plurality of microphone sound inlet channels may be at least one of circular, rectangular, trapezoidal, triangular, diamond-shaped, oval, or semicircular.

In one implementation, the shapes of the sound inlet channels of the microphones may be all the same, or may be completely different, or may not be completely the same.

In one implementation, the center lines of at least one pair of the plurality of microphone sound inlet channels coincide, in other words, at least one pair of the plurality of microphone sound inlet channels communicate and the center lines of the at least one pair of microphone sound inlet channels are on a straight line, or it is understood that the at least one pair of microphone sound inlet channels form a straight sound channel. The wind is generally directional, at least one pair of microphone sound inlet channels are communicated, and the center lines of the at least one pair of microphone sound inlet channels are on the same straight line, so that a wind sound signal can flow out from one microphone sound inlet channel after entering from the other microphone sound inlet channel, and the attenuation effect on the wind sound signal is better. It should be understood that the at least one pair of microphone sound inlet channels may also form sound channels with other shapes, such as a fold line, an arc line, a wave line, and the like, and the embodiments of the present application are not limited thereto.

Fig. 17 shows a schematic structure diagram of a bottom case of a wireless headset according to an embodiment of the present application. In the embodiment of the present application, taking the portion between the outer surface of the bottom shell 54 and the bottom surface 543 of the inner wall as an example, the sound signal enters the inside of the earphone through the microphone sound inlet channel. Referring to fig. 17, two microphone sound inlet channels of the plurality of microphone sound inlet channels, a first sound inlet channel 5411 and a second sound inlet channel 5412, are exemplarily shown, and the first sound inlet channel 5411 and the second sound inlet channel 5412 are communicated. The axes of the first sound inlet channel 5411 and the second sound inlet channel 5412 may be on a straight line, i.e., the first sound inlet channel 5411 and the second sound inlet channel 5412 form a straight sound channel. The first sound inlet passage 5411 and the second sound inlet passage 5412 may communicate with the common sound inlet passage 5413, wherein the first sound inlet passage 5411 and the outer surface of the bottom case 54 are formed with sound inlet holes 541a, and the second sound inlet passage 5412 and the outer surface of the bottom case 54 are formed with sound inlet holes 541 b. The common sound inlet passage 5413 and the bottom surface 543 of the inner wall of the bottom shell form an opening 5431. The first sound intake channel 5411 and the second sound intake channel 5412 communicate with the microphone through the common sound intake channel 5413.

Fig. 18 shows a partially schematic exploded view of a wireless headset provided in an embodiment of the present application, and fig. 19 shows a partially schematic cross-sectional view of the wireless headset provided in an embodiment of the present application. Referring to fig. 18 and 19, in the embodiment of the present application, the bottom shell 54 is configured to have a multi-hole sound inlet hole, and after a wind sound signal enters the sound inlet channel of the microphone during a call, the wind direction is the direction of the wind, so that the wind sound signal can enter from one of the sound inlet holes and then flow out from the other sound inlet hole. Specifically, referring to fig. 18 and 19, it is assumed that the wind enters the first sound inlet channel 5411 from the sound inlet hole 541a, the wind has a direction, so that the wind can enter the second sound inlet channel 5412 from the first sound inlet channel 5411 and further flow out of the bottom shell 54 from the sound inlet hole 541b, and after partial energy of the wind is split by the second sound inlet channel 5412, the wind energy entering the common sound inlet channel 5413 and acting on the call microphone 231 is greatly reduced, so that the wind noise picked up by the call microphone 231 is reduced. For the voice signal, since the voice signal can enter the inside of the bottom case from the respective sound inlet holes, the voice signal can be normally picked up by the call microphone. It should be understood that the common sound input channel 5413 in the embodiment of the present application may be understood as a channel through which an external sound signal must pass when picked up by a microphone.

In the embodiment of the application, the structure of making an uproar falls in the design on the drain pan of earphone, shunts and attenuates the wind sound signal through sound structure passageway, can reduce the wind sound signal energy that flows into on the microphone vibrating diaphragm under the wind speed of all directions in the outdoor conversation environment, reaches the effect that reduces the wind noise of conversation in-process. Further, with two unifications of earphone drain pan and charging electrode in this application embodiment to the drain pan of earphone is as charging electrode, can realize that a thing is multi-purpose, owing to save the space of arranging of charging contact, thereby can increase the space utilization of the inside cavity of earphone. Consequently, the existing function of making an uproar that falls of earphone drain pan in this application embodiment can restrain wind and make an uproar, reduces wind noise, promotes product conversation and experiences, can realize switching on the function of charging again, can simplify structural design, reduces structure complexity, reduces the technology degree of difficulty, increases space utilization.

The wireless headsets provided by the embodiments of the present application are generally equipped with a separate charging box, such as the charging box 8 shown in fig. 13 to 15. When the wireless earphone needs to be charged, the wireless earphone is placed into the charging box to charge the wireless earphone. Particularly, after the wireless earphone enters the box, a Hall switch on the charging box is closed, the Bluetooth is disconnected, and the wireless earphone is in a low power consumption state. When wireless earphone is arranged in the box that charges, the shell fragment that charges in the box that charges contacts with the drain pan of earphone (when the drain pan is as a charging electrode, the metal contact foot in the box that charges still can contact with another charging contact of wireless earphone), the circuit switches on, the chip that sets up in the box that charges has internal voltage detection circuit, it charges for earphone battery to charge for the box that charges when detecting battery voltage and being less than the threshold value, along with by the voltage gradual rise of rechargeable earphone battery, charging current reduces gradually, when detecting that battery voltage reaches certain threshold value or charging current is less than certain threshold value, the chip will be in the off-state, charge and stop, earphone battery charging process accomplishes.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The above terms are specifically understood in the present application by those of ordinary skill in the art.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (20)

1. A wireless headset, comprising: an earphone shell and an earphone component contained in the earphone shell, wherein,

the headset assembly includes a microphone;

the earphone shell comprises a bottom shell, the bottom shell comprises a first bottom shell part and a second bottom shell part which are separated by an insulating material, the first bottom shell part is a charging anode, and the second bottom shell part is a charging cathode;

the bottom shell is provided with a plurality of sound inlet holes, and the sound inlet holes form microphone sound inlet channels which are communicated with each other.

2. The wireless headset of claim 1, wherein the plurality of sound inlet holes are uniformly formed in the bottom case.

3. A wireless earphone according to claim 1 or 2, wherein the plurality of sound inlet holes are provided in the insulating material.

4. A wireless earphone according to claim 1 or 2, wherein the plurality of sound inlet holes comprises two sound inlet holes, the axes of the two sound inlet holes being coincident.

5. The wireless headset of claim 1, wherein the microphone sound inlet channel has a cross-section of at least one of the following shapes:

circular, oval, polygonal, wave-shaped.

6. The wireless earphone according to claim 1, wherein the microphone sound inlet channel comprises a first sound inlet channel and a second sound inlet channel which are communicated with each other, and the first sound inlet channel and the second sound inlet channel are communicated with the microphone through a common sound inlet channel.

7. The wireless headset of claim 1, wherein the outer wall of the bottom housing is radiused.

8. The wireless headset of claim 1, wherein the headset assembly further comprises a flexible circuit board and a battery electrically connected to the flexible circuit board, the first and second bottom housing portions being electrically connected to the flexible circuit board, respectively.

9. The wireless headset of claim 8, wherein the flexible circuit board is provided with a first bend portion adjacent to the bottom housing, wherein the microphone is provided at the first bend portion, and wherein the microphone is electrically connected to the flexible circuit board.

10. A wireless earphone according to claim 8 or 9, wherein the flexible circuit board is provided with a second bending portion at the in-ear end of the earphone housing, and the second bending portion is provided with a speaker.

11. A wireless headset, comprising: an earphone shell and an earphone component contained in the earphone shell, wherein,

the headset assembly includes a microphone;

the earphone shell comprises a bottom shell, the bottom shell is one of a charging anode and a charging cathode, and the other of the charging anode and the charging cathode is arranged separately from the bottom shell;

the bottom shell is provided with a plurality of sound inlet holes, and the sound inlet holes form microphone sound inlet channels which are communicated with each other.

12. The wireless headset of claim 11, wherein the headset housing comprises a front housing, a rear housing and a headset stem, the front housing is connected to the rear housing, the rear housing extends downward to form the headset stem, the bottom housing is located at one end of the headset stem, and the other of the positive and negative charging poles is disposed on the rear housing.

13. The wireless headset of claim 11 or 12, wherein the plurality of sound inlet holes are uniformly formed in the bottom case.

14. A wireless earphone according to claim 11 or 12, wherein the plurality of sound inlet holes comprises two sound inlet holes, the axes of the two sound inlet holes being coincident.

15. The wireless headset of claim 11, wherein the microphone sound inlet channel has a cross-section of at least one of the following shapes:

circular, oval, polygonal, wave-shaped.

16. The wireless headset of claim 11, wherein the microphone sound inlet channel comprises a first sound inlet channel and a second sound inlet channel that are in communication with each other, and the first sound inlet channel and the second sound inlet channel communicate with the microphone through a common sound inlet channel.

17. The wireless headset of claim 11, wherein the outer wall of the bottom housing is radiused.

18. The wireless headset of claim 11, wherein the headset assembly further comprises a flexible circuit board and a battery electrically connected to the flexible circuit board, one end of the flexible circuit board is electrically connected to the bottom case, and the other end of the flexible circuit board is electrically connected to the other of the positive and negative charging electrodes.

19. The wireless headset of claim 18, wherein the flexible circuit board is provided with a first bend proximate the bottom housing, wherein the microphone is provided at the first bend, and wherein the microphone is electrically connected to the flexible circuit board.

20. A wireless headset according to claim 18 or 19, wherein the flexible circuit board is provided with a second bend at the in-ear end of the headset housing, the second bend being provided with a speaker.

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