WO2019042465A1

WO2019042465A1 - Front cavity structure of earphones, and earphones

Info

Publication number: WO2019042465A1
Application number: PCT/CN2018/103953
Authority: WO
Inventors: 梅庆开
Original assignee: 深圳市魅动智能股份有限公司
Priority date: 2017-09-04
Filing date: 2018-09-04
Publication date: 2019-03-07
Also published as: CN207304837U

Abstract

The present solution provides a front cavity structure of earphones. The front cavity structure of earphones comprises an earphone casing having a front cavity and a rear cavity, the front cavity and the rear cavity being not communicated with each other. The front cavity is provided with: an adjusting cavity for adjusting the size of the front cavity; a speaker surface (11) for transmitting a sound outputted by a speaker in the earphones out, a microphone (4) being provided on the speaker surface (11); a wire hole for allowing a transmission wire of the microphone (4) to pass through the front cavity; an exhaust hole for exhausting air in the front cavity; and a vent hole provided at a side of the speaker (11) and for implementing ventilation on the speaker. According to the front cavity structure of earphones provided in the present solution, by providing an adjusting cavity in the front cavity to adjust the size of the front cavity, an exhaust hole for exhausting air in the front cavity, and a vent hone at a side of a speaker surface (11), the tone quality and noise reduction effect of the earphones are improved on the basis of the design on the front cavity layout.

Description

Front cavity structure of earphone and earphone

Technical field

The present invention belongs to the field of earphones, and more particularly to a front cavity structure of an earphone and an earphone structure using the front cavity structure of the earphone.

Background technique

At present, with the development of society, people's living standards are gradually improved, people's requirements for headphones are getting higher and higher, noise-reducing headphones have become a trend in the earphone industry, and the industries and fields used are increasing.

technical problem

It is an object of the present invention to provide a front cavity structure of an earphone to solve the problem that the active noise reduction effect of the earphone existing in the prior art is not good.

Technical solution

In order to achieve the above object, the technical solution adopted by the present invention is to provide a front cavity structure of an earphone, comprising an ear shell having a front cavity and a rear cavity, the front cavity not communicating with the rear cavity; Featuring:

An adjustment cavity for adjusting the size of the cavity of the front cavity;

a speaker surface for sound output from a speaker in the earphone, wherein the speaker surface is provided with a microphone;

a transmission line for the microphone head passes through a line hole of the front cavity;

a venting hole for exhausting the front chamber;

The side of the sound emitting surface is provided with a venting hole for venting the speaker.

Further, the front cavity is further provided with a tuning cotton for adjusting the sound quality of the earphone.

Further, the tuning cotton is an inert cotton.

Further, the tuning cotton comprises a first tuning cotton and a second tuning cotton.

Further, the microphone head has a sound receiving surface for receiving sound, and the sound receiving surface is disposed opposite to the sound emitting surface.

Further, the microphone is a noise reduction microphone.

Further, the speaker surface is further provided with a support, and the microphone is mounted in the support.

Further, the microphone is provided with a microphone sleeve.

Further, the adjustment chamber includes a cavity body and a sealing cover for sealing the cavity body.

Further, an earmuff fixing member for mounting the earphone ear cover is disposed on the opening edge of the front cavity, and the earmuff fixing member is connected to the opening edge of the front cavity through a connecting member.

Further, a first sealing ring is disposed between the opening edge of the front cavity and the connecting member, and the first sealing ring is used for sealing a gap between the opening edge of the front cavity and the connecting member.

Further, a second sealing ring is disposed between the ear piece fixing member and the connecting member, and the second sealing ring is used for sealing a gap between the ear piece fixing member and the connecting member.

Further, the front cavity is further provided with a tuning cotton for adjusting the sound quality of the earphone; the opening edge of the front cavity is provided with an earmuff fixing member for mounting the earphone ear cover, the earmuff fixing member and the The open edges of the front cavity are connected by a connector.

Further, the microphone head has a sound receiving surface for receiving sound, and the sound receiving surface is disposed opposite to the sound emitting surface; the adjusting cavity includes a cavity body and a sealing cover for sealing the cavity body .

Another object of the present invention is to provide an earphone, including a front cavity structure of the earphone as described above.

Beneficial effect

The anterior chamber structure of the earphone provided by the present invention and the earphone have the beneficial effects that: compared with the prior art, the front cavity structure of the earphone of the present invention adjusts the cavity by providing an adjustment cavity in the front cavity, and simultaneously adjusts the size of the cavity. The vent hole is arranged to discharge the gas in the front cavity, and the vent hole is arranged on the side of the sounding surface, thereby improving the sound quality and noise reduction effect of the earphone through the design of the front cavity layout, thereby improving the sound quality and noise reduction of the earphone. effect.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below. It is obvious that the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those of ordinary skill in the art without departing from the drawings.

1 is a schematic structural diagram of a noise reduction microphone and a cavity body in a front cavity structure of an earphone according to an embodiment of the present invention;

2 is a schematic structural diagram of a first tuning cotton and a second tuning cotton in a front cavity structure of an earphone according to an embodiment of the present invention;

3 is a schematic structural diagram of a connecting member in a front cavity structure of an earphone according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an earmuff fixing member in a front cavity structure of an earphone according to an embodiment of the present invention.

Among them, the figures in the figure are mainly marked:

1-ear shell; 2-sealing cap; 3-cavity body; 4-microphone; 5-first tuning cotton; 6-second tuning cotton; 7-first sealing ring; 8-connecting member; Second sealing ring; 10-ear sleeve fixing member; 11-yangsheng surface; 12-microphone sleeve; 13-support.

Embodiments of the invention

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back, ...) in the embodiment of the present invention, the directional indication is only used to explain in a certain posture (as shown in the figure). The relative positional relationship between the components, the motion situation, and the like, if the specific posture changes, the directional indication also changes accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of the "first", "second", etc. is used for the purpose of description only, and is not to be construed as an Its relative importance or implicit indication of the number of technical features indicated. Thus, features defining "first" and "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.

Referring to FIG. 1 to FIG. 4 together, the front cavity structure of the earphone provided by the present invention will now be described. The front cavity structure of the earphone comprises an ear shell 1 having a front cavity and a rear cavity, the front cavity being in communication with a rear cavity of the earphone. The front cavity is provided with an adjustment cavity, a sounding surface 11, a wire hole and a vent hole; and the adjustment cavity is used for adjusting the cavity size of the front cavity. The speaker plane 11 is used for outputting a sound output from a speaker in the earphone. The speaker face 11 is provided with a microphone head 4; and a wire hole is provided for the transmission line of the microphone head 4 to pass through the front cavity. The microphone head 4 has a sound receiving surface for receiving sound, and the sound receiving surface is disposed opposite to the sound emitting surface 11. The venting holes are used for venting of the front chamber. A venting hole for ventilating the speaker is provided on the side of the speaker surface 11.

The front cavity structure of the earphone of the present invention is provided with an adjustment cavity in the front cavity to adjust the size of the cavity, and the sound receiving surface of the microphone head 4 is opposite to the sounding surface 11, and a vent hole is provided at the same time. The gas in the front cavity is discharged, and a vent hole is arranged on the side of the sounding surface 11, thereby improving the sound quality and noise reduction effect of the earphone through the design of the front cavity layout, thereby improving the sound quality and noise reduction effect of the earphone.

Further, please refer to FIG. 2 to FIG. 4 together. As a specific implementation manner of the front cavity structure of the earphone provided by the present invention, the front cavity is further provided with a tuning cotton for adjusting the sound quality of the earphone to improve the acoustic effect.

Further, please refer to FIG. 2 to FIG. 4 together. As a specific implementation manner of the front cavity structure of the earphone provided by the present invention, the tuning cotton is an inert cotton to ensure a good life of the tuning cotton.

Further, please refer to FIG. 2 to FIG. 4 together, as a specific implementation manner of the front cavity structure of the earphone provided by the present invention, the tuning cotton comprises a first tuning cotton 5 and a second tuning cotton 6, wherein The first tuning cotton 5 and the second tuning cotton 6 are both inert cotton. The first tuning cotton 5 and the second tuning cotton 6 are arranged for convenient installation, and the acoustic effect and the noise reduction effect can be improved, and the installation is also convenient.

Further, please refer to FIG. 2 to FIG. 4 together. As a specific implementation manner of the front cavity structure of the earphone provided by the present invention, the microphone head 4 is a noise reduction microphone to improve the noise reduction effect.

Further, please refer to FIG. 2 to FIG. 4 together. As a specific embodiment of the front cavity structure of the earphone provided by the present invention, the adjustment cavity comprises a cavity body 3 and a sealing cover 2 for sealing the cavity body 3. Thereby, a separate cavity structure can be formed, and it is also convenient to adjust the cavity size.

Further, please refer to FIG. 2 to FIG. 4 , as a specific embodiment of the front cavity structure of the earphone provided by the present invention, the ear cover fixing member 10 for mounting the earphone ear cover is disposed on the opening edge of the front cavity. The earmuff fixing member 10 is connected to the opening edge of the front cavity through the connecting member 8, and the earmuff fixing member 10 is provided to facilitate the installation of the ear covering.

Further, please refer to FIG. 2 to FIG. 4 , as a specific embodiment of the front cavity structure of the earphone provided by the present invention, a first sealing ring 7 is disposed between the opening edge of the front cavity and the connecting member 8 . The first sealing ring 7 is used to seal the gap between the opening edge of the front chamber and the connecting member 8. The structure improves the sealing property of the front cavity, thereby improving the acoustic effect and the noise reduction effect.

Further, please refer to FIG. 2 to FIG. 4 , as a specific embodiment of the front cavity structure of the earphone provided by the present invention, a second sealing ring 9 is disposed between the ear cover fixing member 10 and the connecting member 8 . The second sealing ring 9 is used to seal the gap between the earmuff fixing member 10 and the connecting member 8 to further improve the sealing effect.

Further, please refer to FIG. 1 to FIG. 3 together. As a specific implementation manner of the front cavity structure of the earphone provided by the present invention, the speaker surface 11 is further provided with a support 13 for conveniently mounting the positioning microphone 4.

Further, please refer to FIG. 1 to FIG. 3 together, as a specific implementation manner of the front cavity structure of the earphone provided by the present invention, the microphone head 4 is provided with a microphone sleeve 12 to protect the microphone head 4, and at the same time, the microphone is convenient. The head 4 is mounted and fixed in the holder 13.

The present invention also provides an earphone comprising the front cavity structure of the earphone as described above. The earphone uses the front cavity structure of the above earphone, thereby improving the sound quality and noise reduction effect of the earphone.

Referring to FIG. 1 to FIG. 4, in the present invention, a vent hole is provided in the front cavity to adjust the air permeability of the speaker in the front cavity. The position of the noise reduction microphone, that is, after the noise reduction microphone is assembled with the microphone sleeve 12, the front surface (receiving surface) is directly opposite to the speaker diaphragm assembled on the earphone, ensuring the maximum sound collection effect of the noise reduction microphone, which is beneficial to the noise reduction microphone. The overall noise reduction effect of the headphones. The noise reduction microphone is connected with a microphone wire for transmitting an electric signal, and the microphone wire needs a wire hole. The wire hole is welded from the front cavity to the back and is soldered to the PCBA in the earphone, but the wire hole cannot be led through the back cavity, so that the front of the earphone The cavity and the back cavity will communicate with each other, and the effect of the front and back cavity needs to be made into an independent cavity, which is not conducive to acoustic debugging. The adjustment cavity of the front cavity, the adjustment cavity is inside the front cavity, and the inside of the adjustment cavity (left or right) can be placed with a lithium battery, which is sealed by a sealing cover 2, which largely adjusts the size of the front cavity. . The position of the vent hole is open at a position where the front cavity and the rear cavity are not in communication, so that the front and rear cavity can be an independent cavity structure, which is more convenient for acoustic debugging. The tuned cotton, the front chamber of the ear shell 1 is added with the tuned cotton, which is more conducive to improving the sound quality effect, and of course, whether the need to cancel, the sealing structure of the connecting member 8 and the earphone ear shell 1 according to actual requirements, the connection A sealing ring of a silicone rubber or other soft rubber material (ie, the first sealing ring 7) is used between the member 8 and the ear shell 1 , and the connecting member 8 is fixed to the ear shell 1 by screws. To the complete sealing; the sealing structure of the connecting member 8 and the earmuff fixing member 10, the sealing ring of the EVA or soft material (ie the second sealing ring 9) is used between the connecting member 8 and the ear covering fixing member 10, with screws When the ear guard 10 or other means is fixed to the ear shell 1, a complete seal can be achieved so that the front chamber can be truly sealed.

As described above, the opening ratio design of the venting hole of the front cavity, the placement position of the noise reduction microphone, the design of the adjustment cavity, the position design of the microphone hole, the position design of the front cavity vent hole, and the hollow position of the front cavity The soundproof cotton, the sealing design of the connecting member 8 and the ear shell 1, the sealing design of the earmuff fixing member 10 and the connecting member 8 are added; the combination constitutes the front cavity layout in the present invention, and the layout of the layout is very clever. As long as the cavity is correctly assembled in the assembly order, basically no need to debug, the consistency of the front cavity acoustics can be ensured.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

The anterior chamber structure of the earphone comprises an ear shell having a front cavity and a rear cavity, wherein the front cavity is not in communication with the rear cavity; and the front cavity is provided with:

An adjustment cavity for adjusting the size of the cavity of the front cavity;

a speaker surface for sound output from a speaker in the earphone, wherein the speaker surface is provided with a microphone;

a transmission line for the microphone head passes through a line hole of the front cavity;

a venting hole for exhausting the front chamber;

The side of the sound emitting surface is provided with a venting hole for venting the speaker.
The front cavity structure of the earphone according to claim 1, wherein the front cavity is further provided with a tuning cotton for adjusting the sound quality of the earphone.
The front cavity structure of the earphone according to claim 2, wherein the tuning cotton is an inert cotton.
A front chamber structure for an earphone according to claim 2, wherein said tuning cotton comprises a first tuning cotton and a second tuning cotton.
The front cavity structure of the earphone according to claim 1, wherein the microphone head has a sound receiving surface for receiving sound, and the sound receiving surface is disposed opposite to the sound emitting surface.
The front cavity structure of the earphone according to claim 5, wherein the microphone head is a noise reduction microphone.
The front cavity structure of the earphone according to claim 1, wherein the speaker surface is further provided with a support, and the microphone is mounted in the support.
The front cavity structure of the earphone according to claim 7, wherein the microphone head is provided with a microphone sleeve.
A front chamber structure for an earphone according to claim 1, wherein said adjustment chamber comprises a chamber body and a sealing cover for sealing said chamber body.
The front cavity structure of the earphone according to claim 1, wherein the opening edge of the front cavity is provided with an earmuff fixing member for mounting the earphone ear cover, the earmuff fixing member and the front cavity The opening edges are connected by a connector.
The front cavity structure of the earphone according to claim 10, wherein a first sealing ring is disposed between the opening edge of the front cavity and the connecting member, and the first sealing ring is used for sealing the front a gap between the opening edge of the cavity and the connector.
The front cavity structure of the earphone according to claim 10, wherein a second sealing ring is disposed between the ear piece fixing member and the connecting member, and the second sealing ring is used for sealing the ear cover a gap between the fixture and the connector.
The front cavity structure of the earphone according to claim 1, wherein the front cavity is further provided with a tuning cotton for adjusting the sound quality of the earphone; and the opening edge of the front cavity is provided with a earphone for mounting the earphone. An earmuff fixing member connected to the opening edge of the front cavity by a connecting member.
The front cavity structure of the earphone according to claim 1, wherein the microphone head has a sound receiving surface for receiving sound, and the sound receiving surface is disposed opposite to the sound emitting surface; A chamber body and a sealing cover for sealing the chamber body are included.
An earphone characterized by comprising a front cavity structure of the earphone of claim 1.