CN213342641U - Active noise reduction earphone with feedback microphone at special position - Google Patents

Abstract

The utility model provides an earphone of making an uproar falls in initiative of feedback microphone with special position, including the casing, be provided with circuit board, battery and earphone speaker in the casing, circuit board and battery electrical property link to each other, be equipped with the cavity in the casing, the cavity divide into antechamber and back cavity, be equipped with the feedback microphone in the antechamber, the feedback microphone links to each other with the circuit board electrical property, earphone speaker is located the back cavity, earphone speaker and circuit board electric connection, be equipped with the sound pipe in the casing, the one end of sound pipe is located the antechamber, and the other end is located the back cavity, the feedback microphone is located the sound pipe. The utility model discloses have and not occupy front chamber space size, easily install simultaneously and more can improve the noise reduction performance effect.

Description

Active noise reduction earphone with feedback microphone at special position

Technical Field

The utility model relates to a wireless earphone's technical field especially relates to a feedback microphone's earphone of making an uproar falls in initiative with special position.

Background

The noise reduction earphone is an earphone which reduces noise by using a certain method, and the two types of the current noise reduction earphones are an active noise reduction earphone and a passive noise reduction earphone. The active noise reduction function is to generate reverse sound waves equal to external noise through a noise reduction system to neutralize the noise, so that the noise reduction effect is realized.

At present, the structure installation mode of the feedback microphone of the active noise reduction earphone has a plurality of installation modes, but the installation mode of the feedback microphone has decisive influence on the performance of the noise reduction earphone. The feedback microphone of the active noise reduction earphone is mostly installed in the front of the earphone speaker, the feedback microphones of a plurality of earphones are placed in the front cavity of the earphone speaker, the position and the size of the front cavity of the traditional feedback microphone earphone speaker are easily occupied, and the noise reduction debugging difficulty is increased. The utility model provides a pair of earphone of making an uproar falls in initiative of feedback microphone with special position, the feedback microphone of the earphone of should making an uproar falls installs in the earphone sound outlet pipe behind the loudspeaker front chamber to nonparallel loudspeaker direction sets up, can effectively reduce to put and occupy the front chamber space in the loudspeaker front chamber, keeps away from the earphone loudspeaker simultaneously, can reach better noise reduction, and simple installation can effectively improve the performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the weak point of above-mentioned conventional art, provide an earphone of making an uproar falls in initiative of feedback microphone with special position, can not occupy front chamber space size, easily install simultaneously and more can improve the noise reduction performance effect.

The purpose of the utility model is achieved through the following technical measures:

the utility model provides an earphone of making an uproar falls in initiative of feedback microphone with special position, includes the casing, is provided with circuit board, battery and earphone speaker in the casing, and circuit board and battery electrical property link to each other, be equipped with the cavity in the casing, the circuit board divide into antechamber and back chamber with the cavity, be equipped with the feedback microphone in the antechamber, the feedback microphone links to each other with the circuit board electrical property, earphone speaker is located the back chamber, earphone speaker and circuit board electric connection, be equipped with the sound pipe in the casing, the one end of sound pipe is located the antechamber, and the other end is located the back chamber, the feedback microphone is located the sound pipe.

By adopting the above scheme, the battery provides the electric energy for the circuit board, and circuit board control earphone loudspeaker send the reverse sound wave equal with external environment noise, and the sound after will making an uproar is fallen to sound outlet pipe conveys the ante-chamber, and the feedback microphone is located sound outlet pipe, can be with the sound feedback after making an uproar to accomplish and fall the noise. The feedback microphone is positioned in the sound outlet pipe, does not occupy the internal space size of the front cavity, is convenient to install, and can effectively improve the noise reduction performance.

It is further specifically optimized that a front cavity support is arranged in the front cavity, the front cavity support is fixedly connected to the inner wall of the shell, and one end, located in the front cavity, of the sound outlet pipe is fixedly connected to the front cavity support

By adopting the scheme, the front cavity support supports the shell, the hardness of the shell is enhanced, and the service life of the earphone is prolonged. Go out sound pipe fixed connection on the ante-chamber support, improve the stability of sound pipe, avoid going out the sound pipe and can rock at the earphone, avoid the feedback microphone noise to appear when collecting the feedback sound wave, and keep away from earphone loudspeaker to improve and fall the performance of making an uproar.

In a further specific optimization, the feedback microphone is positioned at the end part of the sound outlet pipe close to the front cavity.

Through adopting above-mentioned scheme, the feedback microphone is located the tip of play sound pipe, and the feedback microphone can collect the sound in the cavity of casing and the play sound pipe, can make the tone quality effect of falling the back feedback of making an uproar better.

And further specifically optimizing, the central line of the feedback microphone is perpendicular to the central line of the earphone loudspeaker.

By adopting the scheme, the center line of the feedback microphone is perpendicular to the center line of the earphone loudspeaker, the noise reduction performance can be effectively improved, and the installation is easy.

And further specifically optimizing, the feedback microphone is positioned on one side of the midline of the earphone speaker.

By adopting the above scheme, the feedback microphone is positioned on one side of the central line of the earphone loudspeaker, the length of the sound outlet pipe is shortened, the space size of the front cavity of the earphone is reduced, and the size of the shell is reduced, so that the shell is convenient to carry lightly. Meanwhile, the difficulty of noise reduction and debugging is reduced, and the installation and debugging are convenient.

Further specifically, the circuit board is abutted to the inner wall of the shell.

Through adopting above-mentioned scheme, the circuit board is inconsistent with the casing, and the earphone can avoid the circuit board to make a round trip to rock in the casing when using to guarantee the tone quality and the performance of earphone.

Further concrete optimization, earphone loudspeaker pastes tight circuit board and places, and earphone loudspeaker is inconsistent with shells inner wall.

Through adopting above-mentioned scheme, earphone loudspeaker paste tight circuit board and place, can be with the size that reduces the earphone, make the earphone of making an uproar of falling lighter and handy portable more. The earphone loudspeaker is inconsistent with the shell, and when the earphone is used, the phenomenon that the loudspeaker shakes back and forth to influence the noise reduction performance of the earphone can be avoided.

Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model has the advantages that:

the utility model discloses an earphone of making an uproar falls in initiative of feedback microphone with special position, its feedback microphone is located the play sound pipe of earphone to the central line of feedback microphone is mutually perpendicular with earphone loudspeaker's central line, reduces the space size of falling the earphone front chamber of making an uproar, can effectively improve and fall the performance of making an uproar, and easily install.

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present invention.

The labels in the figure are: 1. a housing; 2. a circuit board; 3. a battery; 4. an earphone speaker; 5. a cavity; 51. a front cavity; 52. a rear cavity; 6. a feedback microphone; 7. a sound outlet pipe; 8. a front cavity support; 9. sound insulation cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

referring to fig. 1, an active noise reduction earphone with a feedback microphone at a special position comprises a casing 1, wherein a circuit board 2, a battery 3, an earphone speaker 4 and a feedback microphone 6 are arranged in the casing 1, the battery 3 is electrically connected with the circuit board 2, and the feedback microphone 6 and the earphone speaker 4 are respectively electrically connected with the circuit board 2. The battery 3 provides the electric energy for the circuit board 2, and circuit board 2 control earphone loudspeaker 4 sends the reverse sound wave equal with external environment noise, and feedback microphone 6 will fall the sound after making an uproar and feed back to accomplish the process of making an uproar of falling of earphone.

Referring to fig. 1, a cavity 5 is arranged in a housing 1, the circuit board 2 divides the cavity 5 into a front cavity 51 and a rear cavity 52, a feedback microphone 6 is located in the front cavity 51, an earphone speaker 4 is located in the rear cavity 52, a sound outlet tube 7 is further arranged in the housing 1, one end of the sound outlet tube 7 is located in the front cavity 51, the other end of the sound outlet tube 7 is located in the rear cavity 52, and the feedback microphone 6 is located in the sound outlet tube 7. The sound output tube 7 transmits the noise-reduced sound to the front cavity 51, and the feedback microphone 6 is positioned in the sound output tube 7 and can feed back the noise-reduced sound, thereby completing the noise reduction. The feedback microphone 6 is positioned in the sound outlet pipe 7, does not occupy the internal space size of the front cavity 51, is convenient to install, and can effectively improve the noise reduction performance.

Referring to fig. 1, a front cavity support 8 is arranged in the front cavity 51, the front cavity support 8 is fixedly connected to the inner wall of the casing 1, the front cavity support 8 supports the casing 1, the hardness of the casing 1 is enhanced, and the service life of the earphone is prolonged.

Referring to fig. 1, the one end fixed connection that goes out sound pipe 7 and be located front chamber 51 can improve the stability of going out sound pipe 7 on front chamber support 8, avoids going out sound pipe 7 and can rock at the earphone, avoids feedback microphone 6 noise to appear when collecting the feedback sound wave, and keeps away from earphone loudspeaker 4 to improve and fall the performance of making an uproar.

Referring to fig. 1, the feedback microphone 6 is located at the end of the sound outlet pipe 7 close to the front cavity 51, and the feedback microphone 6 can collect the sound in the cavity 5 of the casing 1 and the sound outlet pipe 7, so that the sound quality effect of feedback after noise reduction can be better.

Referring to fig. 1, the center line of the feedback microphone 6 is perpendicular to the center line of the earpiece speaker 4, which can effectively improve noise reduction performance and is easy to install.

Referring to fig. 1, the feedback microphone 6 is located at one side of the center line of the earphone speaker 4, which shortens the length of the sound outlet tube 7, reduces the space size of the earphone front cavity 51, reduces the volume of the casing 1, and is convenient for light carrying. Meanwhile, the difficulty of noise reduction and debugging is reduced, and the installation and debugging are convenient.

Referring to fig. 1, circuit board 2 is inconsistent with 1 inner wall of casing, when the earphone was using, can avoid circuit board 2 to make a round trip to rock in 1 casing to guarantee the tone quality and the performance of earphone.

Referring to fig. 1, earphone speaker 4 is placed next to circuit board 2, can be with the size that reduces the earphone, makes the earphone of making an uproar of falling lighter and more handy portable.

Referring to fig. 1, earphone loudspeaker 4 is inconsistent with 1 inner wall of casing, when the earphone used, can avoid loudspeaker to make a round trip to rock the performance of making an uproar that falls that influences the earphone.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The utility model provides an earphone of making an uproar falls in initiative of feedback microphone with special position, includes casing (1), is provided with circuit board (2), battery (3) and earphone loudspeaker (4) in casing (1), and circuit board (2) and battery (3) electrical property link to each other, its characterized in that: be equipped with cavity (5) in casing (1), cavity (5) divide into antechamber (51) and rear chamber (52), be equipped with feedback microphone (6) in antechamber (51), feedback microphone (6) link to each other with circuit board (2) electrical property, earphone loudspeaker (4) are located rear chamber (52), earphone loudspeaker (4) and circuit board (2) electric connection, be equipped with sound outlet pipe (7) in casing (1), the one end of sound outlet pipe (7) is located antechamber (51), and the other end is located rear chamber (52), feedback microphone (6) are located sound outlet pipe (7).

2. An active noise reducing headphone with a special location feedback microphone as claimed in claim 1 wherein: be equipped with front chamber support (8) in front chamber (51), front chamber support (8) fixed connection is in casing (1) inner wall, go out sound pipe (7) and be located the one end fixed connection in front chamber support (8) of front chamber (51).

3. An active noise reducing headphone with a special location feedback microphone as claimed in claim 1 wherein: the feedback microphone (6) is positioned at the end part of the sound outlet pipe (7) close to the front cavity (51).

4. An active noise reducing headphone with a special location feedback microphone as claimed in claim 1 wherein: the central line of the feedback microphone (6) is vertical to the central line of the earphone loudspeaker (4).

5. An active noise reducing headphone with a special location feedback microphone as claimed in claim 1 wherein: the feedback microphone (6) is positioned on one side of the midline of the earphone loudspeaker (4).

6. An active noise reducing headphone with a special location feedback microphone as claimed in claim 1 wherein: earphone loudspeaker (4) paste tight circuit board (2) and place, earphone loudspeaker (4) and casing (1) inner wall are inconsistent.

7. An active noise reducing headphone with a special location feedback microphone as claimed in claim 1 wherein: and a sound insulation soft pad (9) is fixedly arranged on one side of the earphone loudspeaker (4) close to the front cavity (51).

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