CN220965132U - Loudspeaker shell and loudspeaker module - Google Patents

Abstract

The utility model discloses a loudspeaker shell and a loudspeaker module, wherein the loudspeaker shell comprises a first shell, a second shell and a gas flow dividing structure, and a gas leakage hole is formed in the first shell; the second housing connects the first housing to form an acoustic rear cavity; the gas flow dividing structure is arranged on the first shell and is positioned in the acoustic rear cavity, the gas flow dividing structure comprises a plurality of flow dividing blocks which are arranged around the air leakage holes, and the distance between two adjacent flow dividing blocks is gradually reduced from the area far away from the air leakage holes to the area close to the air leakage holes. The arrangement of the gas flow dividing structure on the first shell can effectively improve the airflow noise at the position of the gas leakage hole, so that the tone quality performance of the loudspeaker module is improved, and the use experience of a user is enhanced; the gas diversion structure is simple in structure and convenient to process.

Description

Loudspeaker shell and loudspeaker module

Technical Field

The present utility model relates to electroacoustic transducers, and more particularly to a speaker housing and a speaker module.

Background

The speaker module includes speaker shell and locates the speaker monomer in the speaker shell, and speaker monomer is with speaker shell's inner space partition for preceding chamber and back chamber, is equipped with the intercommunication on the speaker shell the play sound outlet in preceding chamber, in order to balance the influence of speaker monomer during operation to the atmospheric pressure in back chamber, still be equipped with the bleeder in intercommunication back chamber on the shell of part speaker among the prior art.

However, during the practical use, the inventor finds that the air flow noise exists at the air leakage hole, which results in poor sound quality of the speaker module.

Disclosure of utility model

The technical problems solved by the utility model are as follows: a speaker housing capable of improving an airflow noise phenomenon at a vent hole, and a speaker module having the speaker housing are provided.

In order to solve the technical problems, the first technical scheme adopted by the utility model is as follows: a speaker enclosure, comprising:

the first shell is provided with an air leakage hole;

A second housing connecting the first housing to form an acoustic rear cavity;

The gas flow distribution structure is arranged on the first shell and is positioned in the acoustic rear cavity, the gas flow distribution structure comprises a plurality of flow distribution blocks which are arranged around the air leakage holes, and the distance between two adjacent flow distribution blocks is gradually reduced from a region far away from the air leakage holes to a region close to the air leakage holes.

In one embodiment, the diverter blocks are triangular, fan-shaped, oval or elongated.

In an embodiment, the number of the split blocks is greater than or equal to three, and the split blocks with the number being a plurality of split blocks are uniformly distributed around the air leakage hole in a circle.

In an embodiment, the diverter block and the first housing are integrally formed as a one-piece structure.

In one embodiment, the first housing is an injection molded part.

In an embodiment, the exposed surface of the first housing is provided with a groove, the groove is communicated with the air leakage hole, the communication part of the air leakage hole and the groove is located in the central area of the bottom surface of the groove, and an acoustic resistance mesh is arranged in the groove.

In one embodiment, the thickness of the acoustically resistive mesh is less than or equal to the depth of the grooves.

In one embodiment, the vent hole is circular, oval or polygonal.

In an embodiment, the first housing is rectangular plate-shaped, and the corner of the first housing is provided with an L-shaped positioning protrusion, and the positioning protrusion and the shunt block are located on the same side of the first housing.

In order to solve the technical problems, the second technical scheme adopted by the utility model is as follows: the loudspeaker module comprises the loudspeaker shell.

The utility model has the beneficial effects that: the arrangement of the gas flow dividing structure on the first shell can effectively improve the airflow noise at the position of the gas leakage hole, so that the tone quality performance of the loudspeaker module is improved, and the use experience of a user is enhanced; the gas diversion structure is simple in structure and convenient to process.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a speaker enclosure according to a first embodiment of the present utility model;

fig. 2 is a schematic structural view of a first housing in a speaker enclosure according to a first embodiment of the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

Fig. 4 is a schematic structural diagram of a first housing in a speaker enclosure according to a second embodiment of the present utility model;

Fig. 5 is an enlarged view at B in fig. 4.

Reference numerals illustrate:

1. a first housing; 11. a vent hole; 12. a shunt block; 13. a groove; 14. positioning protrusion

2. A second housing;

3. Acoustic resistive mesh.

Detailed Description

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiment of the present utility model, directional indications such as up, down, left, right, front, and rear … … are referred to merely for explaining a relative positional relationship, a movement condition, and the like between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In addition, if the meaning of "and/or" is presented throughout this document to include three parallel schemes, taking "and/or" as an example, including a scheme, or a scheme that is satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

Referring to fig. 1 to 3, a first embodiment of the present utility model is as follows: the loudspeaker module comprises a loudspeaker shell and a loudspeaker monomer arranged in the loudspeaker shell, wherein the loudspeaker monomer divides the inner space of the loudspeaker shell into an acoustic front cavity and an acoustic rear cavity, and an acoustic outlet communicated with the acoustic front cavity is formed in the loudspeaker shell.

It should be noted that the speaker housing may be a test housing used for testing the performance of the speaker unit, and is not necessarily a module housing in the whole product.

Specifically, the speaker housing comprises a first shell 1 and a second shell 2 which are connected, the first shell 1 and the second shell 2 are connected to form the internal space, and the speaker housing and a speaker monomer positioned in the speaker housing are surrounded to form the acoustic rear cavity; the first shell 1 is provided with an air leakage hole 11 and a gas diversion structure, the air leakage hole 11 is communicated with the acoustic rear cavity, and the gas diversion structure is positioned in the acoustic rear cavity.

The gas distribution structure comprises a plurality of distribution blocks 12 arranged around the air leakage hole 11, wherein the distance between two adjacent distribution blocks 12 gradually decreases from the area far away from the air leakage hole 11 to the area close to the air leakage hole 11, that is, a shrinkage structure with gradually changed caliber is formed between the two adjacent distribution blocks 12.

Preferably, the split block 12 and the first housing 1 are integrally formed as a one-piece structure, and optionally, the first housing 1 is an injection molded part formed by injection molding, that is, the split block 12 can be synchronously formed by injection molding in the injection molding process of the first housing 1, so that the production process and the assembly process of the speaker housing are not increased due to the arrangement of the gas split structure.

In this embodiment, the diverter block 12 is in the shape of a fan, and in other embodiments, the diverter block 12 may be triangular, in the shape of a fan, in the shape of a strip, or in other shapes.

The air leakage hole 11 is elliptical, polygonal or other special-shaped. In this embodiment, the air release hole 11 is circular, the diameter of the air release hole 11 is greater than or equal to 0.2mm and less than or equal to 0.5mm, and optionally, the diameter of the air release hole 11 is 0.3mm.

The number of the split blocks 12 is greater than or equal to three, and preferably a plurality of split blocks 12 are uniformly distributed around the air leakage hole 11 in a circle.

The utility model discloses a dustproof and adjustable air flow device for the automobile, including first casing 1, recess 13 is equipped with on the surface that exposes of first casing 1, recess 13 intercommunication bleeder 11, bleeder 11 with the intercommunication department of recess 13 is located the central area of the bottom surface of recess 13, be equipped with the sound resistance screen cloth 3 in the recess 13, sound resistance screen cloth 3 can play dustproof and adjust the air current size effect.

In order to reduce the risk of accidental rubbing of the acoustically resistive mesh 3, it is preferred that the thickness of the acoustically resistive mesh 3 is less than or equal to the depth of the grooves 13.

Optionally, the first housing 1 is rectangular plate-shaped, so as to facilitate positioning and assembling of the first housing 1 and the second housing 2, in this embodiment, a positioning protrusion 14 in an L shape is provided at a corner of the first housing 1, and the positioning protrusion 14 and the split block 12 are located on the same side of the first housing 1. Similarly, the positioning protrusion 14 and the first housing 1 may be integrally formed as a single piece.

Example two

Referring to fig. 4 and 5, a second embodiment of the present utility model is a solution parallel to the first embodiment, and is different from the first embodiment in that: the number and shape of the split blocks 12 on the first housing 1 are different.

In the present embodiment, the number of the split blocks 12 is four; the diverter block 12 is oval in shape.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A loudspeaker enclosure, characterized by: comprising

The first shell is provided with an air leakage hole;

A second housing connecting the first housing to form an acoustic rear cavity;

The gas flow distribution structure is arranged on the first shell and is positioned in the acoustic rear cavity, the gas flow distribution structure comprises a plurality of flow distribution blocks which are arranged around the air leakage holes, and the distance between two adjacent flow distribution blocks is gradually reduced from a region far away from the air leakage holes to a region close to the air leakage holes.

2. The speaker enclosure as recited in claim 1, wherein: the flow dividing block is triangular, fan-shaped, circular, elliptical or strip-shaped.

3. The speaker enclosure as recited in claim 1, wherein: the number of the flow dividing blocks is greater than or equal to three, and the flow dividing blocks with the number being a plurality of flow dividing blocks are uniformly distributed around the air leakage holes in a circle.

4. The speaker enclosure as recited in claim 1, wherein: the split block and the first shell are of an integrated structure formed by integrally machining.

5. The speaker enclosure as recited in claim 4, wherein: the first shell is an injection molding piece formed by injection molding.

6. The speaker enclosure as recited in claim 1, wherein: the utility model discloses a sound-proof device, including first casing, the recess is equipped with to the surface that exposes of first casing, the recess intercommunication the bleeder, the bleeder with the intercommunication department of recess is located the central area of the bottom surface of recess, be equipped with the sound resistance screen cloth in the recess.

7. The speaker enclosure as recited in claim 6, wherein: the thickness of the acoustic resistance mesh cloth is smaller than or equal to the depth of the groove.

8. The speaker enclosure as recited in claim 1, wherein: the air leakage hole is round, elliptic or polygonal.

9. The speaker enclosure as recited in claim 1, wherein: the first shell is rectangular plate-shaped, an L-shaped positioning protrusion is arranged at the corner of the first shell, and the positioning protrusion and the flow dividing block are located on the same side of the first shell.

10. Speaker module, its characterized in that: comprising a loudspeaker enclosure according to any one of claims 1-9.