CN216905231U

CN216905231U - Wireless earphone

Info

Publication number: CN216905231U
Application number: CN202120916079.8U
Authority: CN
Inventors: 向前锋
Original assignee: Dongguan Edifier Technology Co ltd
Current assignee: Dongguan Edifier Technology Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-07-05
Anticipated expiration: 2031-04-29

Abstract

The utility model relates to the technical field of earphones, in particular to a wireless earphone. Wireless earphone includes casing and earphone subassembly, earphone subassembly includes the treater, the unit of raising one's voice of being connected with the treater electricity respectively, the feedback microphone, the unit of raising one's voice is including moving iron unit and moving coil unit, preceding cavity and back cavity are separated into with the inner chamber of casing to the moving coil unit, components and parts in the back cavity have reduced the noise interference to preceding cavity, move iron unit and feedback microphone setting in the front in the cavity, the sound unit has been seted up on the casing, preceding cavity and sound unit intercommunication, the feedback microphone is used for reinforcing speech signal. The movable coil unit is responsible for low-frequency pronunciation, the movable iron unit is responsible for high-frequency pronunciation, and the loudspeaker unit that the movable coil mixes with the movable iron has promoted the analytic density of medium-high frequency, has strengthened the extension of high frequency, can restore each pronunciation detail really, lets the user listen to high-quality tone quality effect.

Description

Wireless earphone

Technical Field

The utility model 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 and the like), 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 physical wires, and therefore the wireless earphone is rapidly developed, and the left earphone and the right earphone of the wireless earphone can also be connected through Bluetooth.

Earphone sound producing unit on the current market mainly divide into moving coil and moving iron according to the type of sound production, and moving coil formula unit bass performance is good but high frequency extends and the freshness is not enough, moves the advantage that the iron unit has high frequency to extend and the definition is good, but the low frequency performance is weak. Therefore, as the demand of people for call quality increases, the current wireless headset cannot meet the pursuit of users for high quality sound quality.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, an object of the present invention is to provide a wireless headset that improves the sound quality of the headset.

In order to achieve the purpose, the utility model provides the following technical scheme:

a wireless earphone comprises a shell and an earphone assembly, wherein the earphone assembly comprises a processor, a loudspeaker unit and a feedback microphone, wherein the loudspeaker unit and the feedback microphone are respectively electrically connected with the processor;

the loudspeaker unit comprises a moving iron unit and a moving coil unit, the moving coil unit divides the inner cavity of the shell into a front cavity and a rear cavity, and the moving iron unit and the feedback microphone are arranged in the front cavity;

the earphone is characterized in that a sound outlet unit is arranged on the shell, the front cavity is communicated with the sound outlet unit, and the feedback microphone is used for enhancing an earphone voice signal.

Preferably, the sound emitting directions of the moving iron unit and the moving coil unit are the same.

Preferably, the sound production direction of the moving-iron unit is perpendicular to the sound pickup direction of the feedback microphone.

Preferably, a plurality of sound outlet holes are formed in the sound outlet unit, and the sound outlet unit is perpendicular to the moving iron unit in relative position.

Preferably, the earphone assembly further comprises a circuit board, and the circuit board is electrically connected with the processor and the feedback microphone respectively.

Preferably, the earphone assembly further comprises a power module, and the power module is electrically connected with the circuit board, the processor and the feedback microphone respectively.

Preferably, the shell is further provided with an indicator light and a key.

Preferably, still include the earmuff, the earmuff cover is established on the casing, be provided with the through-hole on the earmuff, the through-hole with go out sound unit intercommunication.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model provides a loudspeaker assembly which comprises a shell and an earphone assembly, wherein the earphone assembly comprises a processor, a loudspeaker unit and a feedback microphone, the loudspeaker unit comprises a moving iron unit and a moving coil unit, the moving coil unit is used for separating an inner cavity of the shell into a front cavity and a rear cavity, so that noise interference on the front cavity is avoided by components in the rear cavity, in addition, the moving coil loudspeaker unit is responsible for low-frequency sound production, the moving iron unit is responsible for high-frequency sound production, the loudspeaker unit formed by mixing the moving coil and the moving iron improves the resolution density of medium and high frequencies, the high-frequency extension is enhanced, each sound detail can be truly restored, and a user can listen to the high-quality sound quality effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic partial cross-sectional view of an earphone according to an embodiment of the present invention;

fig. 2 is a schematic view of an overall structure of an earphone according to an embodiment of the present invention.

[ description of figures ]: moving iron unit 1, moving coil unit 2, feedback microphone 3, earmuff 4, shell 5, back cavity 6, front cavity 7

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

Referring to fig. 1-2, the present invention provides a wireless headset, including a housing 5 and a headset assembly, where the headset assembly includes a processor, a speaker unit, and a feedback microphone 3, and both the speaker unit and the feedback microphone 3 are electrically connected to the processor;

the loudspeaker unit comprises a moving iron unit 1 and a moving coil unit 2, the moving coil unit 2 is used for dividing the inner cavity of the shell 5 into a front cavity 7 and a rear cavity 6, and the moving iron unit 1 and the feedback microphone 3 are arranged in the front cavity 7;

a sound output unit is arranged on the shell 5, the front cavity 7 is communicated with the sound output unit, and the feedback microphone 3 is used for enhancing the voice signal of the earphone.

Specifically, the moving coil loudspeaker unit is responsible for low-frequency sound production, so that the earphone keeps the low-frequency dive and the thickness of medium-frequency human voice, meanwhile, the moving iron unit 1 is responsible for high-frequency sound production, the moving coil unit 2 is arranged between the front cavity 7 and the rear cavity 6, the moving iron unit 1 is arranged in the front cavity 7, and the sound produced by the moving iron unit 1 is collected to the sound producing unit through the side wall of the shell 5 and the moving coil unit 2, so that the medium-frequency and high-frequency resolution density is improved, the high-frequency extension degree is enhanced, each voice detail can be truly restored, and a user can listen to a high-quality music effect.

The moving iron unit 1 is arranged in the front cavity 7, the moving coil unit 2 is arranged between the front cavity 7 and the rear cavity 6, and the rear cavity 6 is provided with a plurality of components, such as a PCB (printed circuit board) and a power module. When the earphone is used, components in the rear cavity 6 can generate noise, the moving coil unit 2 separates the front cavity 7 from the rear cavity 6, the volume of the front cavity 7 is kept consistent, noise interference of the rear cavity 6 to the front cavity 7 is avoided, and the auxiliary acoustics of the earphone is greatly facilitated.

In addition, the feedback microphone 3 is electrically connected with the processor, the processor enhances the voice signal of the feedback microphone 3 according to a preset voice enhancement algorithm, and the voice signal of the earphone can be effectively enhanced in an external noise environment.

In this embodiment, the earphone assembly further includes a feedforward microphone disposed in the rear cavity 6, the feedforward microphone is electrically connected to the processor, the feedforward microphone is used for picking up an external noise signal of the earphone and feeding back the external noise signal to the processor, and the feedback microphone 3 is used for picking up an internal noise signal of the earphone and feeding back the internal noise signal to the processor.

Specifically, in practical use of the earphone, the earphone is placed in the ear of a user, the feedback microphone 3 is arranged in the cavity of the inner ear of the user, sound is passively insulated between the feedback microphone 3 and the sound of the external environment through the shell 5, and the noise signal of the feedback microphone 3 is smaller than that of the feedforward microphone. During the sound production process of the user, the voice signal passes through a first transmission path: vocal cord vibrations- > mouth- > housing 5- > inner ear cavity- > feedback microphone 3, on the other hand simultaneously through a second transmission path: vocal cords vibration- > face and cheek bones- > inner ear cavity- > feedback microphone 3. The first transmission path is severely affected by the environmental noise, and the second transmission path is relatively less affected by the environmental noise. The feedback microphone 3 is based on the speech signal of the second transmission path, so that the feedback microphone 3 picks up a higher signal-to-noise ratio of the noise signal during the user utterance than the noise signal picked up by the feedforward microphone. The processor fuses the feedback speech signal in the feedback microphone 3 according to a preset speech enhancement algorithm, thereby improving the problem of low quality of the feedforward microphone speech signal under the condition of external environment noise.

In order to further improve the sound quality of the earphone, in an alternative embodiment, the sound emitting directions of the moving iron unit 1 and the moving coil unit 2 are the same. Optionally, the sound production directions of the moving iron unit 1 and the moving coil unit 2 are both perpendicular to the sound pickup direction of the feedback microphone 3. The sound outlet unit is provided with a plurality of sound outlet holes, the sound outlet unit is vertical to the moving iron unit 1 in relative position, and the sound outlet holes can better transmit sound signals of the loudspeaker unit to the ears of a user.

In an alternative embodiment, the headset assembly further comprises a circuit board electrically connected to the processor, the feedback microphone 3 and the feedforward microphone, respectively. The earphone component further comprises a power supply module, and the power supply module is electrically connected with the circuit board, the processor, the feedback microphone 3 and the feedforward microphone respectively.

In order to improve the user experience, the wireless earphone further comprises an ear cap 4, the ear cap 4 is sleeved on the shell 5, a through hole is formed in the ear cap 4, and the through hole is communicated with the sound outlet unit. In this embodiment, the housing 5 is further provided with an indicator light and a key.

In summary, the wireless earphone of the present embodiment includes a housing 5 and an earphone assembly, the earphone assembly includes a processor, a speaker unit, and a feedback microphone 3, the speaker unit includes a moving iron unit 1 and a moving coil unit 2, the moving coil unit 2 divides an inner cavity of the housing 5 into a front cavity 7 and a rear cavity 6, so that components in the rear cavity 6 reduce noise interference to the front cavity 7, in addition, the moving coil unit 2 is responsible for low-frequency sound generation, the moving iron unit 1 is responsible for high-frequency sound generation, the speaker unit with the moving iron and moving coil combined promotes the resolution density of medium and high frequencies, enhances the extension of high frequencies, can truly restore each music detail, and allow a user to listen to a high-quality sound quality effect. In addition, the earphone component in this embodiment further includes a feedback microphone 3, and the feedback microphone 3 is used to enhance the earphone voice signal and reduce the influence of external noise on the quality of the earphone voice signal.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A wireless headset, characterized by comprising a housing (5) and a headset assembly, wherein the headset assembly comprises a processor, a speaker unit and a feedback microphone (3), the speaker unit and the feedback microphone are respectively electrically connected with the processor;

the loudspeaker unit comprises a moving iron unit (1) and a moving coil unit (2), the moving coil unit (2) divides the inner cavity of the shell (5) into a front cavity (7) and a rear cavity (6), and the moving iron unit (1) and the feedback microphone (3) are arranged in the front cavity (7);

a sound output unit is arranged on the shell (5), the front cavity (7) is communicated with the sound output unit, and the feedback microphone (3) is used for enhancing a voice signal of the earphone;

the sound production directions of the moving iron unit (1) and the moving coil unit (2) are the same;

the sound production direction of the moving iron unit (1) is perpendicular to the sound pickup direction of the feedback microphone (3).

2. The wireless earphone according to claim 1, wherein the sound output unit is provided with a plurality of sound output holes, and the sound output unit is perpendicular to the moving iron unit (1).

3. The wireless headset of claim 1, wherein the headset assembly further comprises a circuit board electrically connected to the processor and the feedback microphone (3), respectively.

4. The wireless headset of claim 3, wherein the headset assembly further comprises a power module electrically connected to the circuit board, the processor, and the feedback microphone (3), respectively.

5. The wireless earphone according to claim 1, wherein the housing (5) is further provided with an indicator light and a key.

6. The wireless earphone according to claim 1, further comprising an ear cap (4), wherein the ear cap (4) is sleeved on the housing (5), and a through hole is arranged on the ear cap (4) and communicated with the sound outlet unit.