CN214544743U - Active noise reduction acoustic structure - Google Patents

Abstract

The utility model relates to an acoustic structure of making an uproar falls in initiative, include: the microphone comprises a shell, a loudspeaker, a microphone and an FPC (flexible printed circuit) flat cable. Loudspeaker, the miaow head sets up respectively on the casing, and with loudspeaker through the FPC winding displacement, the miaow head, the earphone electricity is connected, loudspeaker, the miaow head, the FPC winding displacement, the casing can be at the interior modularization production of mill and form whole part, therefore, the user is when the maintenance earphone, only need unpack the earphone shell apart, replace the inside acoustic structure of making an uproar that falls, then connect the FPC winding displacement, the maintenance just can be accomplished to the recovered earphone shell, unusual convenience, because the acoustic structure modular design of making an uproar falls initiatively, even under the unskilled condition of user operation, the positional relation between the part of making an uproar also can not change in each, the holistic effect of making an uproar that falls also can not receive the influence. Simultaneously, the acoustic structure of making an uproar falls in initiative of this application has solved the main power and has fallen the earphone factory equipment of making an uproar and can make volume production, the modularization, the problem of standardized production has reached the effect that promotes the quality, improves the productivity.

Description

Active noise reduction acoustic structure

Technical Field

The utility model relates to an earphone field especially relates to an acoustic structure of making an uproar falls in initiative.

Background

Along with the continuous promotion of people to the earphone requirement, also there are a lot of earphones of making an uproar that fall in the market, and it falls to set up some audio feedback parts in the earphone casing basically all to fall and make an uproar, but the earphone that falls now can not restore its inner structure basically because the inside part of earphone is small and whole operating space is little, and the user unpacks the earphone casing apart the back, can only look for professional shop to maintain, and is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem who solves provides an acoustic structure of making an uproar falls in initiative to the technical problem of earphone maintenance difficulty of making an uproar falls in the solution.

In order to solve the technical problem, the embodiment of the utility model provides an acoustic structure of making an uproar falls in initiative is provided, include: the sound cavity is arranged on the shell, and the mounting groove is positioned on the inner wall of the sound cavity; a horn mounted to the housing; the microphone is fixed in the mounting groove and is positioned below the horn; the FPC flat cable is provided with a first connecting end, a second connecting end and a third connecting end; the shell is provided with a nozzle extending downwards and a wire casing for passing through an FPC (flexible printed circuit) flat cable; the nozzle is provided with a sound outlet hole communicated with the sound cavity, and the periphery of the nozzle is provided with a sound adjusting hole communicated with the sound outlet hole; the loudspeaker is positioned at one end of the sound cavity far away from the sound outlet hole; the sound adjusting hole is positioned on the opposite side of the mounting groove; the first connecting end of the FPC flat cable is electrically connected with the microphone, the second connecting end of the FPC flat cable is electrically connected with the loudspeaker, and the third connecting end of the FPC flat cable is provided with a connector used for being electrically connected with the earphone.

Further, the shell and the loudspeaker are fixed through glue bonding.

Furthermore, the active noise reduction acoustic structure further comprises a tuning net which is fixed on the nozzle and covers the sound outlet hole.

Further, the wire casing is located between the horn and the housing.

The embodiment of the utility model provides a through providing an acoustic structure of making an uproar falls in initiative, loudspeaker, the miaow head sets up on the casing respectively, and with loudspeaker through the FPC winding displacement, the miaow head, the earphone electricity is connected, loudspeaker, the miaow head, the FPC winding displacement, the casing can be at the interior modularization production of mill and form whole part, therefore, the user is when the maintenance earphone, only need unpack the earphone shell apart, replace the inside acoustic structure of making an uproar that falls, then connect the FPC winding displacement, the maintenance just can be accomplished to the recovered earphone shell, unusual convenience, because the design of the acoustic structure modularization of making an uproar falls in the initiative, even under the unskilled condition of user operation, the positional relation between the part of making an uproar also can not change, the holistic effect of making an uproar of falling also can not receive the influence. Simultaneously, the acoustic structure of making an uproar falls in initiative of this application has solved the main power and has fallen the earphone factory equipment of making an uproar and can make volume production, the modularization, the problem of standardized production has reached the effect that promotes the quality, improves the productivity. The utility model discloses a modular acoustic structure of making an uproar falls in initiative has overcome the acoustic structure of making an uproar falls in the initiative to the technical problem of earphone maintenance difficulty falls in the solution, has reached easy maintenance, and does not influence the technological effect of noise reduction effect.

The invention is further described with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is an exploded view of an active noise reducing acoustic structure of the present invention;

fig. 2 is a perspective view of an active noise reduction acoustic structure according to the present invention;

FIG. 3 is a circuit diagram of the FPC cable shown in FIG. 1;

FIG. 4 is a wiring diagram of the third connecting terminal of the FPC cable.

Description of the reference numerals

1 housing 11 Sound Chamber

12 mounting groove 13 nozzle

131 sound outlet hole 132 tone adjusting hole

14 wire casing 2 loudspeaker

3 microphone 4 FPC winding displacement

41 first connection end 42 second connection end

43 third connection end 431 connector

Detailed Description

In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the schematic drawings, but not limited thereto.

In the embodiment of the present invention, if there is directional indication (such as upper, lower, left, right, front, and rear … …) only for explaining the relative position relationship between the components and the motion situation under a certain posture (as shown in the drawing), if the certain posture is changed, the directional indication is changed accordingly.

In addition, the descriptions of the first, second, etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

As shown in fig. 1 and 2, an active noise reduction acoustic structure includes: the microphone comprises a shell 1, a loudspeaker 2, a microphone 3 and an FPC (flexible printed circuit) flat cable 4.

Preferably, the housing 1 is provided with a sound cavity 11, and a mounting groove 12 located on the inner wall of the sound cavity 11. The housing 1 is provided with a nozzle 13 extending downward, and a wire duct 14 for passing the FPC cable 4 therethrough. The nozzle 13 is provided with a sound outlet hole 131 communicated with the sound chamber 11, and the outer periphery of the nozzle 13 is provided with a tuning hole 132 communicated with the sound outlet hole 131, the tuning hole 132 being located at the opposite side of the mounting groove 12. Wherein the wire slot 14 is located between the horn 2 and the housing 1.

Preferably, the speaker 2 is mounted on the housing 1 and located at an end of the sound cavity 11 far from the sound outlet 131, and the housing 1 and the speaker 2 are fixed by gluing.

Preferably, the microphone 3 is fixed to the mounting groove 12, and the microphone 3 is located below the horn 2.

Preferably, the active noise reduction acoustic structure further comprises a tuning net (not shown) fixed to the nozzle 13 and covering the sound outlet hole 131.

As shown in fig. 3, which is a circuit diagram of the FPC cable 4, the FPC cable 4 has a first connection terminal 41, a second connection terminal 42, and a third connection terminal 43. The first connection end 41 of the FPC cable 4 is electrically connected with the microphone 3, the second connection end 42 is electrically connected with the speaker 2, and the third connection end 43 is provided with a connector for electrically connecting with an earphone.

As shown in fig. 4, which is a wiring diagram of the third connection end 43 of the FPC cable 4, the active noise reduction acoustic assembly is electrically connected to the earphone through the connector 431 of the third connection end.

The utility model provides an acoustic structure of making an uproar falls in initiative, loudspeaker, the miaow head sets up on the casing respectively, and with loudspeaker through the FPC winding displacement, the miaow head, the earphone electricity is connected, loudspeaker, the miaow head, the FPC winding displacement, the casing can be at the interior modularization production of mill and form whole part, therefore, the user is when the maintenance earphone, only need unpack the earphone shell apart, replace the inside acoustic structure of making an uproar of falling, then connect the FPC winding displacement, the maintenance just can be accomplished to the recovered earphone shell, unusual convenience, because the acoustic structure modular design of making an uproar falls in the initiative, even under the unskilled condition of user operation, the positional relationship between the part of respectively falling the noise also can not change, the holistic effect of falling the noise also can not receive the influence. Simultaneously, the acoustic structure of making an uproar falls in initiative of this application has solved the main power and has fallen the earphone factory equipment of making an uproar and can make volume production, the modularization, the problem of standardized production has reached the effect that promotes the quality, improves the productivity. The utility model discloses a modular acoustic structure of making an uproar falls in initiative has overcome the acoustic structure of making an uproar falls in the initiative to the technical problem of earphone maintenance difficulty falls in the solution, has reached easy maintenance, and does not influence the technological effect of noise reduction effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. An active noise reducing acoustic structure, comprising:

the sound cavity is arranged on the shell, and the mounting groove is positioned on the inner wall of the sound cavity;

a horn mounted to the housing;

the microphone is fixed in the mounting groove and is positioned below the horn;

the FPC flat cable is provided with a first connecting end, a second connecting end and a third connecting end;

the shell is provided with a nozzle extending downwards and a wire casing for passing through an FPC (flexible printed circuit) flat cable; the nozzle is provided with a sound outlet hole communicated with the sound cavity, and the periphery of the nozzle is provided with a sound adjusting hole communicated with the sound outlet hole; the loudspeaker is positioned at one end of the sound cavity far away from the sound outlet hole; the sound adjusting hole is positioned on the opposite side of the mounting groove; the first connecting end of the FPC flat cable is electrically connected with the microphone, the second connecting end of the FPC flat cable is electrically connected with the loudspeaker, and the third connecting end of the FPC flat cable is provided with a connector used for being electrically connected with the earphone.

2. An active noise reducing acoustic structure according to claim 1, wherein the housing and horn are secured by glue bonding.

3. The active noise reducing acoustic structure of claim 1, further comprising a tuning mesh secured to the nozzle and covering the sound outlet hole.

4. An active noise reducing acoustic structure according to claim 1, wherein the wireway is located between the horn and the housing.

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