CN214708021U

CN214708021U - Wireless earphone

Info

Publication number: CN214708021U
Application number: CN202120748235.4U
Authority: CN
Inventors: 陈思; 高飞
Original assignee: Dongguan Luxshare Precision Industry Co Ltd
Current assignee: Dongguan Luxshare Precision Industry Co Ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-11-12
Anticipated expiration: 2031-04-13
Also published as: TWM620077U

Abstract

The utility model discloses a wireless earphone, which belongs to the earphone technical field, comprising an earphone shell, wherein the earphone shell is divided into a front sound cavity and a rear sound cavity, and the earphone shell is provided with a sound outlet nozzle communicated with the front sound cavity; a speaker disposed within the earphone housing; and the communication microphone is arranged in the front sound cavity and positioned at the sound outlet side of the loudspeaker, and the communication microphone is fixedly arranged on the inner wall of the earphone shell. The utility model provides a speech information that wireless earphone conversation microphone gathered can be purer for wireless earphone has better pronunciation and falls the function of making an uproar, and falls the separation of the module of making an uproar and eliminate ambient noise's algorithm requirement lower to the environment, consequently can concentrate on how high-efficient, sensitively pick up speech signal at conversation microphone with the design cost, the difficult point of technology breaks through more easily, and the cost is lower, can also be convenient for wireless earphone's miniaturation.

Description

Wireless earphone

Technical Field

The utility model relates to an earphone technical field especially relates to a wireless earphone.

Background

The TWS (True Wireless Stereo) headset does not need a physical wire, gets rid of the wire constraint in use, and has higher use convenience, thus being popular with many consumers. In addition, a microphone is arranged in the wireless earphone, so that the wireless earphone has the functions of voice interaction, man-machine interaction, real-time translation and the like.

In the prior art, the wireless headset includes two microphones and an environment noise reduction module, one of the two microphones is used for receiving near-end speech and environment noise, the other of the two microphones is used for receiving far-end speech and environment noise, the environment noise reduction module is used for correcting gain and time delay of the near-end speech and the far-end speech, detecting and identifying speech signals and environment noise signals, and then suppressing the environment noise through the filter module. When the noise of the external environment is large or the external environment is overlapped with the frequency spectrum of the voice signal, the voice signal after noise reduction processing is eliminated due to the fact that the suppression parameter is too large, and then the passing sound is reduced or distorted; and if the suppression parameters are too small, the noise reduction effect is not obvious, and the situation of inaudibility is easily caused. Therefore, the voice noise reduction capability of the wireless earphone in the prior art is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wireless earphone, the speech information that the conversation microphone gathered can be purer for wireless earphone has the better pronunciation and falls the function of making an uproar.

As the conception, the utility model adopts the technical proposal that:

a wireless headset, comprising:

the earphone shell is divided into a front sound cavity and a rear sound cavity and is provided with a sound outlet nozzle communicated with the front sound cavity;

a speaker disposed within the earphone housing;

and the communication microphone is arranged in the front sound cavity and positioned at the sound outlet side of the loudspeaker, and the communication microphone is fixedly arranged on the inner wall of the earphone shell.

Optionally, the earphone housing includes a front shell and a rear shell that are connected to each other, the sound outlet is disposed on the front shell, and the communication microphone is fixed to an inner wall of the front shell.

Optionally, the inner wall of the front case has a mounting groove, and the call microphone is mounted in the mounting groove.

Optionally, the conversation microphone overcoat is equipped with the gum cover, have the through-hole on the gum cover just the gum cover with the cell wall interference fit of mounting groove.

Optionally, the earphone device further comprises a partition fixed on the front shell, and the partition partitions the earphone shell and forms the front sound cavity and the rear sound cavity.

Optionally, the speaker is located in the front sound cavity, and the speaker is fixed to the partition.

Optionally, the front housing includes an annular wall extending from a periphery of the sound outlet to an inside of the front sound cavity and connected to the speaker, the front sound cavity is divided into an inner sound cavity and an outer sound cavity by the annular wall and the speaker, the sound outlet communicates with the inner sound cavity, and the communication microphone is located in the inner sound cavity.

Optionally, the mobile phone further comprises a circuit board assembly, the circuit board assembly is located in the rear sound cavity, and the speaker and the communication microphone are electrically connected to the circuit board assembly respectively.

Optionally, the earphone comprises a battery box and a battery arranged in the battery box, the battery box is fixedly connected to the earphone shell, and the circuit board assembly is electrically connected to the battery.

Optionally, the earphone further comprises a sound insulation glue, and the sound insulation glue is located at the connection position of the battery box and the earphone shell.

The utility model discloses following beneficial effect has at least:

the wireless earphone provided by the utility model is convenient for the talking microphone to collect the voice signal transmitted by the sound outlet nozzle, the earphone shell and/or the front sound cavity by arranging the talking microphone on the earphone shell, and the sound emitted by the user's vocal cords can generate vibration through the solid such as skull, the vibration can generate air conduction fluctuation in the cavity (such as the channel between ears) in the head, the fluctuation can be transmitted to the ear canal and can be transmitted to the sound outlet nozzle, the earphone shell or the front sound cavity in an air conduction mode through the ear canal, and the sound has fast speed of solid transmission, small attenuation and is not easy to distort, so that the voice signal collected by the talking microphone can be more accurate and not easy to distort, because the earphone shell and the ear canal of the user can form a relatively sealed space, the environmental noise is difficult to enter the sealed space, the microphone is difficult to collect by the conversation microphone, so that the voice signal collected by the conversation microphone can be purer, and the wireless earphone can have a better noise reduction effect.

And, because there is little ambient noise in the signal that the microphone collects of the conversation, or even there is no ambient noise, so can set up or not set up the module of environmental noise reduction in the wireless earphone. When the wireless earphone is provided with the environment noise reduction module, the environment noise reduction module can be positioned in the front cavity and is electrically connected with the conversation microphone, and the conversation microphone cannot be interfered by external environment noise, so that the requirements on the separation of the environment noise reduction module and the algorithm for eliminating the environment noise are low, the design cost can be concentrated on how to efficiently and sensitively pick up the voice signal by the conversation microphone, the technical difficulty is easier to break through, and the cost is low. The utility model discloses a wireless earphone only must set up the conversation microphone just can obtain for the purer speech signal of current wireless earphone: or the utility model discloses a wireless earphone only has to set up conversation microphone and environment noise reduction module just can obtain for the current more pure speech signal of earphone of making an uproar.

In addition, the communication microphone is arranged at the sound outlet side of the loudspeaker, namely, the communication microphone is arranged in front of the loudspeaker, so that the structure of the wireless earphone can be more compact, and the possibility is provided for future micro earphones.

Drawings

Fig. 1 is a schematic structural diagram of a wireless headset according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a wireless headset according to an embodiment of the present invention;

fig. 3 is a front view of a wireless headset according to an embodiment of the present invention;

fig. 4 is a cross-sectional view a-a of fig. 3 according to the present invention;

fig. 5 is a schematic structural diagram of a front shell according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a part of a wireless headset according to an embodiment of the present invention;

fig. 7 is a sectional view B-B of fig. 6 according to the present invention.

In the figure:

1. an earphone housing; 11. a sound outlet mouth; 111. a sound outlet hole; 12. a front housing; 121. mounting grooves; 122. an annular wall; 13. a rear housing; 2. a speaker; 3. a call microphone; 4. a separator; 5. a circuit board assembly; 6. a battery case; 10. a front sound cavity; 101. an internal sound cavity; 102. an external sound cavity; 20. a rear sound cavity.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides a wireless earphone, and the voice information collected by the call microphone 3 of the wireless earphone can be purer, so that the wireless earphone has a better voice noise reduction function. In some embodiments, the wireless headset may be a True Wireless (TWS) headset.

As shown in fig. 1 to 7, the wireless headset includes a headset housing 1, and a speaker 2 and a call microphone 3 respectively disposed in the headset housing 1.

The earphone housing 1 is a cavity structure, and the earphone housing 1 is divided into a front sound cavity 10 and a rear sound cavity 20. The earphone housing 1 has a sound outlet 11 communicating with the front sound cavity 10, and the sound outlet 11 is convex and is adapted to be inserted into the ear canal of the user. Illustratively, as shown in fig. 3, the end of the sound outlet nozzle 11 has a sound outlet hole 111 for transmitting sound generated by the speaker 2 and transmitting a voice signal to the call microphone 3.

As shown in fig. 2, the speaker 2 is disposed in the cavity structure of the earphone housing 1, and the speaker 2 may be located in the front sound cavity 10 or the rear sound cavity 20. The speaker 2 is used for converting the electric signal into a sound signal and transmitting the sound signal into the ear canal of the user through the sound outlet 11, and the side of the speaker 2 facing the sound outlet 11 is the sound outlet side, which is the left side of the speaker 2 as shown in fig. 2.

The call microphone 3 is disposed in the front sound chamber 10 and on the sound output side of the speaker 2. The communication microphone 3 is fixed on the inner wall of the earphone housing 1, and the communication microphone 3 is closer to the sound outlet 11 than the speaker 2. The talking microphone 3 is used for collecting the voice signal transmitted through the skull of the user through the sound outlet 11, the earphone housing 1 and/or the front sound cavity 10, converting the voice signal into an electric signal and transmitting the electric signal.

In the wireless earphone provided by this embodiment, the talking microphone 3 is disposed in the front sound cavity 10, and the talking microphone 3 is fixed on the earphone housing 1, so that the talking microphone 3 can collect the voice signal transmitted through the sound outlet 11, the earphone housing 1 and/or the front sound cavity 10, and the sound emitted from the vocal cords of the user can vibrate through the solid such as the skull, and the vibration can generate air conduction fluctuation in the cavity (for example, the channel between the ears) in the head, the fluctuation can be transmitted to the ear canal and can be transmitted to the sound outlet 11, the earphone housing 1 or the front sound cavity 10 through the ear canal in an air conduction manner and received by the talking microphone 3, and the sound has a fast solid transmission speed, small attenuation and is not easily distorted, so that the voice signal collected by the talking microphone 3 can be more accurate and not easily distorted, and a relatively sealed space can be formed between the earphone housing 1 and the ear canal of the user, therefore, the environment noise is difficult to enter the sealed space and is difficult to be collected by the call microphone 3, so that the voice signal collected by the call microphone 3 can be purer, and the wireless earphone can have a better noise reduction effect.

Moreover, since the signal collected by the microphone 3 has little or no ambient noise, the wireless headset may or may not have an ambient noise reduction module. When the wireless headset is provided with the environment noise reduction module, the environment noise reduction module can be positioned in the front cavity 10 and electrically connected with the call microphone 3, and the call microphone 3 cannot be interfered by external environment noise, so that the requirements on the separation of the environment noise reduction module and the algorithm for eliminating the environment noise are low, the design cost can be concentrated on how to efficiently and sensitively pick up the voice signal by the call microphone 3, the technical difficulty is easier to break through, and the cost is low.

In addition, the communication microphone 3 is arranged at the sound outlet side of the loudspeaker 2, namely, the communication microphone 3 is arranged in front of the loudspeaker 2, so that the structure of the wireless earphone can be more compact, and the possibility is provided for future micro earphones.

Optionally, in order to further facilitate the collection of voice signals by the call microphone 3, as shown in fig. 3 and 4, the call microphone 3 is located at the edge of the bottom of the sound outlet 11, that is, the call microphone 3 is located close to the sound outlet 11, so that after the sound outlet 11 is plugged into the ear canal of the user, the call microphone 3 can be located inside the ear of the user, and the possibility of ambient noise being collected by the call microphone 3 is further reduced.

In some embodiments, the front housing 12 further includes an annular wall 122, the annular wall 122 is disposed on an inner side surface of the front housing 12, the annular wall 122 is located on a periphery of the sound outlet 11 and extends toward an interior of the front sound cavity 10, an end of the annular wall 122 away from the inner side surface of the front housing 12 surrounds and is connected to the speaker 2, the front sound cavity 10 is divided into an inner sound cavity 101 and an outer sound cavity 102 by the annular wall 122 and the speaker 2, the front housing 12, the annular wall 122 and the speaker 2 together form the inner sound cavity 101, a cavity space of the front sound cavity 10 outside the inner sound cavity 101 is the outer sound cavity 102, the sound outlet 11 communicates with the inner sound cavity 101, and the conversation microphone 3 is located in the inner sound cavity 101. The design that the front sound cavity 10 is divided into the inner sound cavity 101 and the outer sound cavity 102 can better prevent the sound of the loudspeaker 2 from leaking to the outside, and the sound of the loudspeaker 2 can be emitted from the inner sound cavity 101 and the sound outlet nozzle 11 in a more concentrated manner; meanwhile, the external sound can be better isolated from being conducted to the inner sound cavity 101; moreover, the conversation microphone 3 is located in the inner sound cavity 101, which can better reduce the received outside sound, and can more intensively receive the sound emitted from the vocal cords of the user and transmitted to the inner sound cavity 101 through the ear canal and the sound outlet mouth.

Alternatively, as shown in fig. 2, the earphone housing 1 includes a front case 12 and a rear case 13 connected to each other, the sound outlet 11 is disposed on the front case 12, the talking microphone 3 is fixed on an inner wall of the front case 12, and by disposing the front case 12 and the rear case 13, the assembly of the internal structure of the wireless earphone can be facilitated.

Further, as shown in fig. 5, the inner wall of the front case 12 has a mounting groove 121, and the talking microphone 3 is embedded in the mounting groove 121 to prevent the talking microphone 3 from being separated from the front case 12 when the wireless headset is vibrated. Optionally, the microphone 3 may be sleeved with a rubber sleeve, the rubber sleeve is provided with a through hole and is in interference fit with a groove wall of the mounting groove 121, so as to firmly fix the microphone 3 in the mounting groove 121, and the through hole in the rubber sleeve can facilitate the microphone 3 to acquire a voice signal in the front sound cavity 10. Still alternatively, a fixing net may be further fixed to the inner wall of the front case 12, the fixing net being located above the mounting groove 121 and forming a mounting space with the mounting groove 121, and the conversation microphone 3 being fixed in the mounting space, so that the fixing net can fix and restrain the conversation microphone 3.

Optionally, as shown in fig. 4, the wireless headset further includes a partition 4, an edge of the partition 4 is fixed on an inner wall of the front case 12, and the partition 4 partitions the headset housing 1 to form a front sound cavity 10 and a rear sound cavity 20. Alternatively, the center of the partition 4 has a groove, and the speaker 2 is fixed to the groove of the partition 4. And, for example, the partition 4 may be a partition plate to prevent occupying more space.

Further, the recess is located on the side of the partition 4 facing the front sound chamber 10, that is, the speaker 2 is located in the front sound chamber 10, so that the sound emitted from the speaker 2 can smoothly enter the ear canal of the user.

Optionally, referring to fig. 2, the wireless headset further includes a circuit board assembly 5, the circuit board assembly 5 is located in the rear sound cavity 20, and the speaker 2 and the call microphone 3 are electrically connected to the circuit board assembly 5 respectively. A control module may be integrated on the circuit board assembly 5, and the control module can control the operation of the speaker 2 and the call microphone 3. Also, when the wireless headset includes an ambient noise reduction module, the ambient noise reduction module may be integrated on the circuit board assembly 5.

Further, as shown in fig. 4, the wireless headset further includes a battery case 6 and a battery (not shown) disposed in the battery case 6. The battery box 6 is fixedly connected to the earphone housing 1, the specific battery box 6 is fixedly connected to the rear shell 13, and the rear shell 13, the separator 4 and the battery box 6 enclose a rear sound cavity 20. The circuit board assembly 5 is electrically connected to the battery, so that the battery can supply power to the circuit board assembly 5, the speaker 2 and the call microphone 3.

In this embodiment, the wireless headset further includes sound-proof glue, wherein the sound-proof glue is located at the junction of the battery box 6 and the rear case 13, and is used for sealing the gap between the battery box 6 and the rear case, so as to prevent ambient noise from entering the rear sound cavity 20 through the gap therebetween. Optionally, a sealant is provided at the joint of the front casing 12 and the rear casing 13, so that the sealant seals the gap between the front casing 12 and the rear casing 13, thereby reducing the probability that environmental noise enters the front sound cavity 10 through the gap between the front casing 12 and the rear casing 13, and ensuring the purity of the voice signal collected by the talking microphone 3.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A wireless headset, comprising:

the earphone comprises an earphone shell (1), wherein the earphone shell (1) is divided into a front sound cavity (10) and a rear sound cavity (20), and the earphone shell (1) is provided with a sound outlet nozzle (11) communicated with the front sound cavity (10);

a speaker (2) disposed in the earphone housing (1);

the communication microphone (3) is arranged in the front sound cavity (10) and located on the sound outlet side of the loudspeaker (2), and the communication microphone (3) is fixedly arranged on the inner wall of the earphone shell (1).

2. The wireless headset according to claim 1, wherein the headset housing (1) comprises a front shell (12) and a rear shell (13) connected to each other, the sound outlet nozzle (11) is disposed on the front shell (12), and the call microphone (3) is fixed to an inner wall of the front shell (12).

3. The wireless headset according to claim 2, wherein the inner wall of the front case (12) has a mounting groove (121), and the conversation microphone (3) is mounted in the mounting groove (121).

4. The wireless earphone according to claim 3, wherein the talking microphone (3) is externally sleeved with a rubber sleeve, the rubber sleeve is provided with a through hole and is in interference fit with the groove wall of the mounting groove (121).

5. The wireless headset according to claim 2, further comprising a partition (4), wherein the partition (4) is fixed to the front housing (12), and wherein the partition (4) divides the headset housing (1) and forms the front sound cavity (10) and the rear sound cavity (20).

6. A wireless earphone according to claim 5, characterized in that the speaker (2) is located in the front sound cavity (10) and that the speaker (2) is fixed to the partition (4).

7. The wireless earphone according to claim 2, wherein the front housing (12) comprises a ring-shaped wall (122) extending from the periphery of the sound outlet nozzle (11) to the inside of the front sound cavity (10) and connecting the speaker (2), the front sound cavity (10) is divided into an inner sound cavity (101) and an outer sound cavity (102) by the ring-shaped wall (122) and the speaker (2), the sound outlet nozzle (11) communicates with the inner sound cavity (101), and the call microphone (3) is located in the inner sound cavity (101).

8. The wireless headset of claim 1, further comprising a circuit board assembly (5), wherein the circuit board assembly (5) is located in the rear sound cavity (20), and the speaker (2) and the call microphone (3) are electrically connected to the circuit board assembly (5), respectively.

9. The wireless earphone according to claim 8, further comprising a battery box (6) and a battery disposed in the battery box (6), wherein the battery box (6) is fixedly connected to the earphone housing (1), and the circuit board assembly (5) is electrically connected to the battery.

10. The wireless headset according to claim 9, further comprising a sound-insulating glue located at the connection of the battery compartment (6) and the headset housing (1).