CN213522322U

CN213522322U - Restrain resonant headphone of back chamber air

Info

Publication number: CN213522322U
Application number: CN202022615980.XU
Authority: CN
Inventors: 丁红桂
Original assignee: Minami Electroacoustic Co Ltd
Current assignee: Minami Electroacoustic Co Ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-06-22
Anticipated expiration: 2030-11-12

Abstract

The utility model relates to an electroacoustic product technical field especially relates to a restrain resonant headphone of back chamber air, which comprises a housin, the inner chamber of casing is equipped with loudspeaker unit, loudspeaker unit will the inner chamber is separated and is formed confined ante-chamber and back chamber, be equipped with intercommunication back chamber and external bass pipe in the back chamber, the back chamber is winding a plurality of intercommunication back chambers and external damping leak holes have been seted up in bass pipe's week portion. The utility model provides a restrain back chamber air resonance's headphone, through set up at the earphone back chamber the hole is leaked in the damping, has effectively restrained the air resonance of back chamber, has promoted earphone low frequency permeability, and it is enough to guarantee the earphone bass, and three frequency balance make the bass that the user experienced more full powerful and rich in elasticity.

Description

Restrain resonant headphone of back chamber air

[ technical field ] A method for producing a semiconductor device

The application relates to the technical field of electroacoustic products, in particular to a headphone for inhibiting air resonance of a rear cavity.

[ background of the invention ]

Aiming at the problem that a part of earphones in the market are designed to improve the bass effect, a bass guide pipe is added in the rear cavity of the earphone, the low-frequency performance is improved, but Helmholtz resonance valleys can be generated in the rear cavity of the earphone, a deep middle-tone resonance valley is formed particularly near the middle-low frequency of 300Hz, the integral tone quality of the earphone is greatly lost, and the design is particularly suitable for a headset (also called an earmuff type earphone).

[ summary of the invention ]

An object of this application is to provide a restrain back chamber air resonance's headphone, through setting up at the earphone back chamber the hole is leaked in the damping, has effectively restrained the air resonance of back chamber, has promoted earphone low frequency permeability, guarantees that earphone bass performance is enough, and three frequency balance make the full powerful and rich in elasticity of the full bass that the user experienced when using.

The application is realized by the following technical scheme:

the utility model provides a restrain resonant headphone of back chamber air, includes the casing, the inner chamber of casing is equipped with loudspeaker unit, loudspeaker unit will the inner chamber is separated and is formed confined ante-chamber and back chamber, be equipped with intercommunication back chamber and external bass pipe in the back chamber, the back chamber is winding a plurality of intercommunication back chambers and external damping leakage hole have been seted up to bass pipe's week portion.

In the headphone for suppressing air resonance in the rear cavity as described above, the vibration reduction leakage hole is located in the side wall of the rear cavity.

According to the headphone for inhibiting air resonance of the rear cavity, the number of the vibration reduction leakage holes is 3, and the vibration reduction leakage holes are distributed in a triangular mode.

In the headphone for suppressing air resonance in the rear cavity, the damping leakage hole is internally provided with the damping piece.

In the headphone for suppressing air resonance in the rear cavity, the damping member is a tuning net or tuning cotton.

According to the headphone for inhibiting air resonance of the back cavity, the middle part of the back side wall of the back cavity is provided with the concave cavity, one end of the bass conduit is positioned in the concave cavity, and the other end of the bass conduit is communicated with the outside.

The headphone for suppressing air resonance in the rear cavity further comprises an ear cup disposed at the front end of the housing.

Compared with the prior art, the method has the following advantages:

through setting up at the earphone rear chamber the hole is leaked in the damping, has effectively restrained the air resonance of rear chamber, has promoted earphone low frequency permeability, guarantees that the earphone bass is enough, and three frequency balance make the bass that the user experienced more full powerful and be rich in elasticity.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is an exploded view of the shell and the earmuff according to the embodiment of the present disclosure.

Fig. 3 is an enlarged view of a portion a of fig. 2.

[ detailed description ] embodiments

In order to make the technical problems, technical solutions and advantageous effects solved by the present application more clear and obvious, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

As shown in fig. 1 to 3, the embodiment of the present application provides a headphone for suppressing air resonance in a back cavity, including a housing 10, an inner cavity of the housing 10 is provided with a speaker unit, the speaker unit separates the inner cavity to form a closed front cavity and a back cavity 2, a communication back cavity 2 and an external bass catheter 4 are arranged in the back cavity 2, the back cavity 2 is provided with a plurality of communication back cavities 2 and external vibration reduction leakage holes 5 around the periphery of the bass catheter 4.

Through setting up at the earphone rear chamber leak hole 5 is leaked in the damping, has effectively restrained the air resonance of rear chamber, has promoted earphone low frequency permeability, guarantees that the earphone bass is enough, and three frequency balance make the bass that the user experienced more full powerful and rich in elasticity.

In particular, the damping leakage holes 5 are located on the side wall of the rear chamber 2.

Furthermore, the damping leakage holes 5 are 3 and distributed in a triangular manner. Two of which are located on the left and right sides of the bass duct 4 and the other of which is located obliquely above the entrance of the bass duct 4.

Furthermore, a damping piece for adjusting the air inlet and outlet amount is arranged in the vibration damping leakage hole 5. Preferably, the damping member is a tuning net or tuning cotton. The damping of the damping leakage hole 5 can be adjusted by the damping member, so that the damping effect can be adjusted to the best according to different rear cavity structures.

In this embodiment, a cavity 21 is disposed in the middle of the rear sidewall of the rear cavity 2, one end of the bass duct 4 is located in the cavity 21, and the other end is communicated with the outside. The cavity 21 is arranged to form an embedded arrangement of the bass guide duct 4, and the structure is more compact.

Restrain back chamber air resonance's headphone still include elastic connection spare and ear muff 6, the elastic connection spare both ends symmetry respectively are equipped with above-mentioned casing 10, ear muff 6 is located casing 10 front end.

In summary, the present application has, but is not limited to, the following beneficial effects:

It should be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used herein to indicate an orientation or positional relationship based on that shown in the drawings for ease of description and simplicity of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.

The foregoing is illustrative of one or more embodiments provided in connection with the detailed description and is not intended to limit the disclosure to the particular forms disclosed. Similar or identical methods, structures, etc. as used herein, or several technical inferences or substitutions made on the concept of the present application should be considered as the scope of the present application.

Claims

1. The utility model provides a restrain resonant headphone of back chamber air, includes casing (10), the inner chamber of casing (10) is equipped with loudspeaker unit, loudspeaker unit will the inner chamber is separated and is formed confined ante-chamber and back chamber (2), be equipped with intercommunication back chamber (2) and external bass pipe (4) in back chamber (2), its characterized in that, back chamber (2) are winding a plurality of intercommunication back chambers (2) and external damping leak holes (5) have been seted up to the week portion of bass pipe (4).

2. The headphone for suppressing rear cavity air resonance according to claim 1, characterized in that the vibration reduction leak hole (5) is located on a side wall of the rear cavity (2).

3. The headphone for suppressing the air resonance of the rear cavity according to claim 1, wherein the vibration reduction leakage holes (5) are provided in 3 numbers and are distributed in a triangular shape.

4. The headphone for suppressing the rear cavity air resonance according to claim 1, characterized in that a damper is provided in the vibration reduction leakage hole (5).

5. The headphone for suppressing the air resonance of the rear cavity according to claim 4, wherein the damping member is a tuning net or tuning cotton.

6. The headphone for suppressing the air resonance in the rear cavity according to claim 1, wherein a cavity (21) is formed in the middle of the rear side wall of the rear cavity (2), and one end of the bass guide duct (4) is located in the cavity (21) and the other end of the bass guide duct is communicated with the outside.

7. The headphone for suppressing the air resonance of the rear chamber according to claim 1, further comprising an ear cup (6) provided at a front end of the housing (10).