CN216086956U

CN216086956U - Earphone sound outlet mouth double-damping net structure

Info

Publication number: CN216086956U
Application number: CN202121358715.6U
Authority: CN
Inventors: 沈庆凯; 戴文杰; 杨冉
Original assignee: Risuntek Inc
Current assignee: Risuntek Inc
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-03-18
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a dual-damping net structure of an earphone sound outlet, which comprises an earphone front shell, a first net layer, a second net layer and a loudspeaker, wherein: the earphone front shell comprises a sound outlet mouth, and the sound outlet mouth is arranged at the front end of the earphone front shell; the inner part of the front shell of the earphone is provided with an assembling position which is positioned at the rear side of the sound outlet mouth; the front end of the horn is provided with a horn protective cover, and the front end surface of the horn protective cover is of a plane mesopore structure; the loudspeaker is positioned inside the front shell of the earphone; the first net layer is a metal net and is fixed with the sound outlet mouth of the earphone in a hot melting mode by adopting an ultrasonic process; the second net layer is a double-sided adhesive-backed net, and is fixedly bonded between the assembling position and the front end face of the loudspeaker protective cover. Through fixed with the metal mesh supersound, the inside assembly position of earphone shell that two-sided gum silk screen bonding was fixed in the play sound mouth rear side realizes silk screen and metal mesh advantage, has solved that damping coefficient can be unstable among the traditional art and has caused the problem of high frequency response harmfulness easily.

Description

Earphone sound outlet mouth double-damping net structure

Technical Field

The utility model relates to the technical field of earphones, in particular to an earphone sound outlet mouth double-damping net structure.

Background

At present, with the rapid development of the earphone industry, the requirement of consumers on the quality of earphones is higher and higher, and most of the damping materials of the sound outlet mouths of the small earphones no matter at high ends or low ends are single-face gum PET silk screens, because the cost performance is highest. A small number of high-end earphone goes out sound mouth damping material and adopts steel mesh + silk screen combination screen cloth ultrasonic technology, has the steel mesh supersound advantage again simultaneously of silk screen advantage concurrently, but has a very big drawback just the supersound back damping coefficient can be unstable (mainly the silk screen receives the influence), causes high frequency response harmfully easily.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to the defects in the prior art, and a primary object of the present invention is to provide a dual-damping mesh structure for an earphone sound outlet, in which a metal mesh is ultrasonically fixed, and a dual-sided adhesive wire mesh is adhesively fixed to an assembly position inside an earphone shell behind the sound outlet, so as to achieve the advantages of the wire mesh and the metal mesh, and simultaneously solve the problem in the conventional technology that a damping coefficient is unstable and is likely to cause poor high-frequency response.

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

the utility model provides an earphone goes out sound mouth dual damping net structure, includes earphone front shell, first stratum reticulare, second stratum reticulare and loudspeaker, wherein:

the earphone front shell comprises a sound outlet mouth, and the sound outlet mouth is arranged at the front end of the earphone front shell; the inner part of the front shell of the earphone is provided with an assembling position which is positioned at the rear side of the sound outlet mouth;

the front end of the horn is provided with a horn protective cover, and the front end surface of the horn protective cover is of a plane mesopore structure; the loudspeaker is positioned inside the front shell of the earphone;

the first net layer is a metal net and is fixed with the sound outlet mouth of the earphone in a hot melting mode by adopting an ultrasonic process;

the second net layer is a double-sided adhesive-backed net, and is fixedly bonded between the assembling position and the front end face of the loudspeaker protective cover.

Preferably, the first mesh layer is an electroplated steel mesh.

Preferably, a limiting step is arranged on the periphery of the sound outlet mouth of the front shell of the earphone, and the first mesh layer is fixed on the limiting step.

As a preferred scheme, the preceding terminal surface of the play sound mouth of shell before the earphone is concave to be equipped with annular concave position, spacing step is from annular concave position back concave establishment and forms for: the front end surface, the annular concave position and the limiting step of the sound outlet nozzle are sequentially arranged from front to back; the first net layer is provided with a front net part and a peripheral side net part connected to the peripheral side of the front net part, the front net part is limited by an annular concave position, and the peripheral side net part is limited by a limiting step.

Preferably, the unilateral distance from the inner diameter of the middle hole of the horn protection cover to the outer diameter is more than 1.5 mm, so that: the outer periphery of the sound outlet end of the loudspeaker protection cover is bonded with the second mesh layer.

Preferably, the first mesh layer is disposed outside a sound outlet of the earphone front shell, a limiting step is disposed on a periphery of the sound outlet of the earphone front shell, and the first mesh layer is thermally fused with the earphone sound outlet by using an ultrasonic process, so that: the first net layer is fixed on the limiting step.

Preferably, the thickness of the second net layer is less than or equal to 0.3 mm.

As a preferable scheme, the front side and the back side of the second mesh layer are both provided with a back adhesive layer, the back adhesive layer is circular, and the inner diameter of the back adhesive layer is more than 0.8 mm from the single-side back adhesive width of the outer diameter.

As a preferred scheme, loudspeaker rear end sets up sealed glue, sealed glue cover is fixed loudspeaker visor's rear end makes: the rear end of the loudspeaker protective cover is completely buried in the sealant, and the front shell of the earphone is connected with the loudspeaker protective cover in a sealing manner.

Compared with the prior art, the earphone shell has the obvious advantages and beneficial effects, and particularly, according to the technical scheme, the metal mesh is fixed in an ultrasonic mode, the double-sided gum wire mesh is fixedly bonded to the assembly position in the earphone shell on the rear side of the sound outlet nozzle, so that the advantages of the wire mesh and the metal mesh are achieved, and the problem that high-frequency response is poor due to unstable damping coefficient in the traditional technology is solved;

secondly, the first net layer is combined with the plastic earphone front shell in a hot melting mode through an ultrasonic technology at the sound outlet mouth, so that the cool and dazzling metal appearance of the first net layer is reserved, and the falling possibility of the first net layer is avoided; the double-sided gum wire mesh can be attached between the assembly position of the front shell of the earphone and the loudspeaker protection cover, plays a role in damping and simultaneously avoids the risk of falling into the auditory canal;

moreover, the loudspeaker visor and the earphone front shell are bonded by the aid of the double-sided gum silk screen, so that the sealing effect is better, sealing air leakage of the earphone loudspeaker front cavity module is avoided, the problems of poor low-frequency curve, inconsistency of sound volume of the loudspeaker front cavity, inconsistency of high-frequency curve and the like are avoided, the consistency of the curve is improved, and the requirement of the left and right ear balance degree of a high-end product is met more easily.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a front view of a horn cell of an embodiment of the present invention;

FIG. 2 is a side view of a speaker cell of an embodiment of the present invention;

FIG. 3 is a rear view of the speaker unit of the embodiment of the present invention;

FIG. 4 is an assembled cross-sectional view of the plated steel mesh, the double-sided adhesive-backed wire mesh and the front case of the earphone according to the embodiment of the present invention;

FIG. 5 is an overall cross-sectional view of a dual damping mesh structure for the sound outlet of an earphone according to an embodiment of the present invention;

fig. 6 is a front view of a double-sided adhesive-backed screen of an embodiment of the present invention.

The attached drawings indicate the following:

10. earphone front shell 11, sound outlet mouth

111. Front end surface 112, annular recess

12. Limiting step 13 and assembling position

20. Double-sided adhesive-backed silk screen 21 and silk screen layer

22. Back glue layer 30 and electroplating steel mesh

40. A horn 41 and a horn protection cover.

Detailed Description

Referring to fig. 1 to 6, specific structures of the embodiments of the present invention are shown.

A dual damping mesh structure of earphone sound outlet mouth, includes earphone front shell 10, first stratum reticulare and second stratum reticulare, wherein:

the earphone front case 10 includes a mouthpiece 11, and the mouthpiece 11 is disposed at a front end of the earphone front case 10. Inside the earphone front case 10, there is a fitting site 13 at the rear side of the mouthpiece 11 for mounting a speaker 40.

The first mesh layer is a metal mesh, which is disposed at the sound outlet 11 of the earphone front shell 10, and the first mesh layer is an electroplated steel mesh 30. The second mesh layer is disposed between the earphone front shell 10 and the speaker 40, and is a double-sided adhesive-backed mesh 20. As shown in fig. 6, the middle layer of the double-sided adhesive-backed silk screen 20 is a silk screen layer 21, a circular adhesive-backed layer 22 is disposed on the periphery of the silk screen layer 21, the adhesive-backed layer 22 is a double-sided adhesive, one side of the double-sided adhesive-backed silk screen is adhered to the silk screen layer 21, and the other side of the double-sided adhesive-backed silk screen is used for being adhered to the corresponding speaker protection cover 41 and the assembly position 13 of the front earphone shell 10.

In order to more clearly illustrate the structural features and effects of the dual damping net structure of the sound outlet mouth of the earphone, the present invention is described in detail with specific embodiments below:

fig. 1-3 illustrate a front view, a side view, and a rear view, respectively, of the horn 40 alone. From the design of the horn 40 unit, the horn protection cover 41 is a plane mesopore structure, and the unilateral distance from the inner diameter to the outer diameter of the mesopore of the horn protection cover 41 is more than 1.5 mm, so that: the outer peripheral side of the sound outlet end of the horn cover 41 is bonded to the double-sided adhesive-backed mesh 20.

Fig. 4 shows a sectional view of the assembly of the plated steel mesh 30, the double-sided adhesive-backed wire mesh 20 and the front case 10 of the earphone. Electroplating steel mesh 30 set up in the play sound mouth 11 outside of shell 10 before the earphone, the play sound mouth 11 week side of shell 10 is provided with spacing step 12 before the earphone, and, electroplating steel mesh 30 adopts supersound technology and earphone to go out the sound mouth and carry out the hot melt fixed for: the electroplating steel net 30 is fixed on the limit step 12. The electroplating steel mesh 30 is combined with the earphone front shell 10 in a hot melting mode through an ultrasonic process, so that the cool and dazzling metal appearance of the electroplating steel mesh 30 is reserved, and the falling possibility of the electroplating steel mesh 30 is avoided. Here, the front end surface 111 of the sound outlet 11 of the earphone front shell 10 is concavely provided with an annular concave position 112, and the limiting step 12 is formed by concavely arranging the annular concave position 112 backwards, so that the front end surface 111 of the sound outlet 11, the annular concave position 112 and the limiting step 12 are sequentially arranged from front to back. The electroplated steel mesh 30 has a front mesh portion limited by the annular concave portion 112 and a peripheral side mesh portion connected to the peripheral side of the front mesh portion limited by the limiting step 12. During assembly, the electroplating steel net 30 is arranged corresponding to the annular concave position 112 and the limit step 12, and then is fixed with the earphone front shell 10 by hot melting by adopting an ultrasonic process.

During assembly, the double-sided adhesive-backed wire mesh 20 can be attached to the assembly position 13 of the front earphone housing 10, and then the speaker 40 is mounted, so that the speaker protection cover 41 of the speaker 40 is bonded and fixed to the rear side of the double-sided adhesive-backed wire mesh 20; the double-sided adhesive-backed silk screen 20 may be attached to the speaker protection cover 41, so that the front side of the double-sided adhesive-backed silk screen 20 is adhered and fixed to the mounting position 13 of the front earphone housing 10 when the speaker 40 is installed.

In this embodiment, as shown in fig. 5, the double-sided adhesive-backed mesh 20 is attached to the mounting position 13 of the earphone front case 10, and the double-sided adhesive-backed mesh 20 is attached to the speaker protection cover 41.

The double-sided adhesive-backed mesh 20 has a thickness of 0.3 mm or less, and the inner diameter of the adhesive-backed layer 22 has a width of 0.8 mm or more from the outer diameter. Shown in fig. 6 is a front view of a double-sided adhesive-backed screen 20. In this embodiment, the double-sided adhesive-backed screen 20 has a thickness of 0.3 mm, and the inner diameter of the adhesive-backed layer 22 has a width of 0.8 mm from the outer diameter, so that: loudspeaker 40 bonds with earphone front shell 10 and has good leakproofness for acoustic damping plays key effect to and, stopped to drop into the risk of duct.

In actual manufacturing, after the speaker 40 is installed in the front earphone shell 10, a sealant (e.g., UV sealant) is disposed at the rear end of the speaker 40 for rapid shaping, curing and reinforcing. The sealant covers and fixes the rear end of the horn protection cover 41, so that: the rear end of the loudspeaker protection cover 41 is completely buried in the sealant, so that the good sealing performance between the earphone front shell 10 and the loudspeaker protection cover 41 is ensured, the double-sided adhesive-backed wire mesh 20 is ensured to be tightly fixed between the assembling position 13 of the earphone front shell 10 and the loudspeaker protection cover 41, and the double-sided adhesive-backed wire mesh 20 is prevented from shifting and falling off.

The design of the utility model is characterized in that: the advantages of the wire mesh and the metal mesh are realized mainly by fixing the metal mesh in an ultrasonic manner, and adhering and fixing the double-sided adhesive wire mesh to an assembly position in the earphone shell at the rear side of the sound outlet nozzle, and meanwhile, the problem that the damping coefficient is unstable and the high-frequency response is poor in the traditional technology is solved;

Claims

1. The utility model provides an earphone goes out two damping net structures of sound mouth which characterized in that: including preceding shell of earphone, first stratum reticulare, second stratum reticulare and loudspeaker, wherein:

2. The earphone sound outlet mouth double-damping net structure according to claim 1, wherein: the first net layer is an electroplating steel net.

3. An earphone sound outlet mouth double damping net structure according to claim 1 or 2, characterized in that: the periphery of the sound outlet mouth of the earphone front shell is provided with a limiting step, and the first net layer is fixed on the limiting step.

4. The earphone sound outlet mouth double-damping net structure according to claim 3, wherein: the preceding terminal surface of the play sound mouth of shell is concave to be equipped with annular concave position before the earphone, spacing step is from annular concave position back concave establishment and forms for: the front end surface, the annular concave position and the limiting step of the sound outlet nozzle are sequentially arranged from front to back; the first net layer is provided with a front net part and a peripheral side net part connected to the peripheral side of the front net part, the front net part is limited by an annular concave position, and the peripheral side net part is limited by a limiting step.

5. The earphone sound outlet mouth double-damping net structure according to claim 1, wherein: the unilateral distance between the inner diameter of the middle hole of the loudspeaker protection cover and the outer diameter is more than 1.5 mm, so that: the outer periphery of the sound outlet end of the loudspeaker protection cover is bonded with the second mesh layer.

6. The earphone sound outlet double damping mesh structure according to claim 2, wherein: the first mesh layer is arranged on the outer side of a sound outlet of the earphone front shell, a limiting step is arranged on the periphery of the sound outlet of the earphone front shell, and the first mesh layer is fixed with the sound outlet of the earphone through hot melting by adopting an ultrasonic process, so that: the first net layer is fixed on the limiting step.

7. The earphone sound outlet mouth double-damping net structure according to claim 3, wherein: the thickness of the second net layer is less than 0.3 mm.

8. The earphone sound outlet mouth double-damping net structure according to claim 1, wherein: the front side and the back side of the second net layer are both provided with a back adhesive layer, the back adhesive layer is circular, and the inner diameter of the back adhesive layer is more than 0.8 mm from the single-side back adhesive width of the outer diameter.

9. The earphone sound outlet mouth double-damping net structure according to claim 1, wherein: loudspeaker rear end sets up sealed glue, sealed glue covers fixedly the rear end of loudspeaker visor makes: the rear end of the loudspeaker protective cover is completely buried in the sealant, and the front shell of the earphone is connected with the loudspeaker protective cover in a sealing manner.