CN211909048U

CN211909048U - Loudspeaker

Info

Publication number: CN211909048U
Application number: CN202020378497.1U
Authority: CN
Inventors: 林嘉平
Original assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Current assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-11-10
Anticipated expiration: 2030-03-23

Abstract

A speaker includes a lower case and a pressure relief assembly; the outer surface of the lower shell is only provided with a leakage hole; the leakage hole is used for filling sound absorption materials; the pressure relief assembly is used for being adhered to the leakage hole after the sound-absorbing material is filled. Compared with the traditional sound generating device, the sound generating device provided by the utility model only has the leakage hole, but simultaneously in order to satisfy the filling sound absorbing material, in order to improve the filling speed, the leakage hole is designed, the diameter of the leakage hole is increased, but the large diameter is increased, the pressure release function is influenced, so the device utilizes the pressure release component to block the leakage hole, when the leakage hole is increased, the filling sound absorbing material can be satisfied, the ventilating and pressure release effects can be achieved, compared with the traditional device, the process of independently laminating PET and gluing for sealing is reduced, the cost is saved, and the production efficiency is improved; meanwhile, the die manufacturing mode is reduced from double holes to single holes, so that the die can be simplified, the die processing time is reduced, and the cost is reduced.

Description

Loudspeaker

Technical Field

The utility model relates to a technical field is made to the speaker, especially relates to a speaker.

Background

The acoustic system of the conventional structure includes a closed box and a sound generating unit provided on the closed box, and a chamber is formed between the closed box and the sound generating unit, and it is difficult for the acoustic system, especially a small-sized acoustic system, to achieve a satisfactory bass reproduction effect due to a volume limitation of the chamber in the acoustic system. Conventionally, in order to achieve satisfactory bass reproduction in an acoustic system, a sound-absorbing material is provided in a cabinet of the acoustic system for adsorbing or desorbing gas in the cabinet, resulting in an effect of increasing a volume and thus lowering a low-frequency resonance frequency.

Traditional sound generating mechanism for add acoustic material in the box, the design has the through-hole that leaks hole and filling acoustic material usually on the casing, and after the assembly was accomplished to casing supersound down, filling acoustic material toward the through-hole in, after the acoustic material was accomplished in the filling, paste PET again on the through-hole and glue and seal with beating to lead to having increased not few production processes and cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provided is a speaker, which reduces the assembly process and production cost.

In order to solve the technical problem, the utility model discloses a technical scheme be: a speaker includes a lower case and a pressure relief assembly;

the outer surface of the lower shell is only provided with a leakage hole;

the leakage hole is used for filling sound absorption materials;

the pressure relief assembly is used for being adhered to the leakage hole after the sound-absorbing material is filled.

Furthermore, the pressure relief assembly comprises a damping mesh cloth, a first double-sided adhesive, PET and a second double-sided adhesive which are sequentially bonded from top to bottom;

the surface of the second double-sided adhesive, which is far away from the PET, is fixedly adhered to the surface of the lower shell;

the first double-sided adhesive, the second double-sided adhesive and the PET are respectively provided with a round hole which is concentric with the leakage hole.

Further, the diameter of the round hole in the second double-sided adhesive is larger than that of the round hole in the PET;

the diameter of the round hole in the first double-sided adhesive is equal to that of the round hole in the PET and smaller than that of the leakage hole.

Further, the pressure relief assembly is circular.

Furthermore, a sink groove is arranged on the surface of the lower shell and is coaxial with the leakage hole;

the shape of the sinking groove is matched with that of the pressure relief assembly.

The beneficial effects of the utility model reside in that: the utility model provides a loudspeaker, which comprises a lower shell and a pressure relief component; the pressure relief assembly is used for being adhered to the leakage hole after the sound-absorbing material is filled. And traditional sound generating mechanism, the design has let out leakage hole and through-hole on the casing, lets out leakage hole and is used for ventilative pressure release, and the through-hole is used for the filling to inhale sound material. Compared with the traditional sound generating device, the sound generating device provided by the utility model only has the leakage hole, but simultaneously in order to satisfy the filling sound absorbing material, in order to improve the filling speed, the leakage hole is designed, the diameter of the leakage hole is increased, but the large diameter is increased, the pressure release function is influenced, so the device utilizes the pressure release component to block the leakage hole, when the leakage hole is increased, the filling sound absorbing material can be satisfied, the ventilating and pressure release effects can be achieved, compared with the traditional device, the process of independently laminating PET and gluing for sealing is reduced, the cost is saved, and the production efficiency is improved; meanwhile, the die manufacturing mode is reduced from double holes to single holes, so that the die can be simplified, the die processing time is reduced, and the cost is reduced.

Drawings

Fig. 1 is an assembly diagram of a speaker according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a speaker according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is an exploded schematic view of a pressure relief assembly of a speaker according to an embodiment of the present invention;

fig. 5 is an exploded view of a speaker according to an embodiment of the present invention;

description of reference numerals:

1. a lower housing; 2. a pressure relief assembly; 3. an upper housing; 4. a sound emitting unit; 5. FPC; 6. injection molding of mesh cloth;

21. damping mesh cloth; 22. a first double-sided adhesive; 23. PET; 24. and a second double-sided adhesive.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 5, a speaker includes a lower housing and a pressure relief assembly;

the outer surface of the lower shell is only provided with a leakage hole;

the leakage hole is used for filling sound absorption materials;

From the above description, the beneficial effects of the present invention are: the utility model provides a loudspeaker, which comprises a lower shell and a pressure relief component; the pressure relief assembly is used for being adhered to the leakage hole after the sound-absorbing material is filled. And traditional sound generating mechanism, the design has let out leakage hole and through-hole on the casing, lets out leakage hole and is used for ventilative pressure release, and the through-hole is used for the filling to inhale sound material. Compared with the traditional sound generating device, the sound generating device provided by the utility model only has the leakage hole, but simultaneously in order to satisfy the filling sound absorbing material, in order to improve the filling speed, the leakage hole is designed, the diameter of the leakage hole is increased, but the large diameter is increased, the pressure release function is influenced, so the device utilizes the pressure release component to block the leakage hole, when the leakage hole is increased, the filling sound absorbing material can be satisfied, the ventilating and pressure release effects can be achieved, compared with the traditional device, the process of independently laminating PET and gluing for sealing is reduced, the cost is saved, and the production efficiency is improved; meanwhile, the die manufacturing mode is reduced from double holes to single holes, so that the die can be simplified, the die processing time is reduced, and the cost is reduced.

As can be seen from the above description, the arrangement of the damping mesh cloth enables the leakage holes to have the functions of pressure relief and ventilation after the canning is finished and the leakage holes are sealed.

According to the description, the diameter size of the original leakage hole is reduced by utilizing the PET, the large leakage hole can be rapidly canned, and the influence of the large through hole on the pressure relief and ventilation function after plugging can be avoided.

Further, the pressure relief assembly is circular.

As can be seen from the above description, the circular pressure relief assembly can be well assembled and is convenient to machine and mold.

According to the description, the arrangement of the sinking groove can enable the pressure relief assembly to be quickly positioned during assembly, and the assembly efficiency of the pressure relief assembly is improved; secondly, also can avoid the outstanding lower casing surface of pressure release subassembly, avoid external reason to cause the pressure release subassembly to drop, improve the durability of pressure release subassembly in the use.

Referring to fig. 1 to 5, a first embodiment of the present invention is: a loudspeaker, including lower body 1 and pressure relief assembly 2;

the outer surface of the lower shell 1 is only provided with a leakage hole;

the leakage hole is used for filling sound absorption materials;

and the pressure relief assembly 2 is used for being adhered to the leakage hole after the sound absorption material is filled.

Specifically, the diameter size of the leakage hole is 2.2 mm.

Referring to fig. 5, the speaker further includes an upper housing 3, a sound generating unit 4, an FPC5 and an injection-molded mesh 6;

the sounding unit 4 is arranged in a cavity formed by the upper shell 3 and the lower shell 1; the upper shell 3 and the lower shell 1 can be fixed by ultrasonic, and the injection molding mesh cloth 6 is arranged in a clamping groove on the upper shell 3; the FPC5 is electrically connected to the sound unit 4 through a printed circuit.

Referring to fig. 3 and 4, specifically, the pressure relief assembly 2 includes a damping mesh 21, a first double-sided adhesive 22, a PET23 and a second double-sided adhesive 24 which are sequentially bonded from top to bottom;

the surface of the second double-side 24 glue away from the PET23 is fixedly adhered to the surface of the lower shell 1;

the first double-sided adhesive 22, the second double-sided adhesive 24 and the PET23 are respectively provided with circular holes which are concentric with the leakage holes.

Specifically, the diameter of the round hole on the PET23 is 1 mm.

Specifically, in the actual production process, the damping mesh cloth 21, the first double-sided adhesive 22, the PET23 and the second double-sided adhesive 24 are formed by punching and forming integrally, so that the pressure relief assembly 2 is assembled on the through hole of the lower shell 1 in a standard component manner, and the production and assembly efficiency is improved.

Referring to fig. 3 and 4, specifically, the diameter of the circular hole on the second double-sided adhesive 22 is larger than that of the circular hole on the PET 23;

the diameter of the circular hole in the first double-sided adhesive 22 is equal to that of the circular hole in the PET23 and is smaller than that of the leakage hole.

Specifically, the diameter of the circular hole in the first double-sided adhesive 22 and the diameter of the circular hole in the PET23 should meet the requirements of ventilation and pressure relief.

Referring to fig. 1, fig. 3 and fig. 5, a second embodiment of the present invention is: in this embodiment, on the basis of the first embodiment, the pressure relief assembly 2 is circular.

Referring to fig. 1, 3 and 5, specifically, a sinking groove is formed on the surface of the lower housing 1 at a position coaxial with the leakage hole;

the shape of the sinking groove is matched with that of the pressure relief component 2.

Specifically, if the lower shell 1 is made of plastic, the sink can be formed by integral injection molding; if the lower shell 1 is made of metal, the sink can be manufactured by a blank pressing process.

To sum up, the utility model provides a loudspeaker, which comprises a lower shell and a pressure relief component; the pressure relief assembly is used for being adhered to the leakage hole after the sound-absorbing material is filled. And traditional sound generating mechanism, the design has let out leakage hole and through-hole on the casing, lets out leakage hole and is used for ventilative pressure release, and the through-hole is used for the filling to inhale sound material. Compared with the traditional sound generating device, the sound generating device provided by the utility model only has the leakage hole, but simultaneously in order to satisfy the filling sound absorbing material, in order to improve the filling speed, the leakage hole is designed, the diameter of the leakage hole is increased, but the large aperture can influence the pressure release function after being increased, so the device utilizes PET to reduce the diameter size of the original leakage hole, the large leakage hole can be quickly canned, the influence of the large through hole on the pressure release ventilation function after being blocked can be avoided, after the leakage hole is increased, the filling sound absorbing material can be satisfied, the ventilation and pressure release effects can be realized, compared with the traditional device, the process of independently laminating PET and gluing for sealing is reduced, the cost is saved, and the production efficiency is improved; meanwhile, the die manufacturing mode is reduced from double holes to single holes, so that the die can be simplified, the die processing time is reduced, and the cost is reduced. Furthermore, the sink groove is arranged at the installation position of the pressure relief assembly, so that the pressure relief assembly can be quickly positioned during assembly, and the assembly efficiency of the pressure relief assembly is improved; secondly, also can avoid the outstanding lower casing surface of pressure release subassembly, avoid external reason to cause the pressure release subassembly to drop, improve the durability of pressure release subassembly in the use.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. A loudspeaker, comprising a lower enclosure and a pressure relief assembly;

the outer surface of the lower shell is only provided with a leakage hole;

the leakage hole is used for filling sound absorption materials;

2. The loudspeaker of claim 1, wherein the pressure relief assembly comprises a damping mesh, a first double-sided adhesive, PET and a second double-sided adhesive which are sequentially bonded from top to bottom;

3. A loudspeaker according to claim 2, wherein the diameter of the circular hole in the second double-sided adhesive is greater than the diameter of the circular hole in the PET;

4. A loudspeaker according to claim 1, wherein the pressure relief assembly is circular.

5. The speaker of claim 4, wherein a sink is provided on the surface of the lower case at a position coaxial with the leak hole;