CN218352648U

CN218352648U - Loudspeaker module and terminal equipment

Info

Publication number: CN218352648U
Application number: CN202221674039.8U
Authority: CN
Inventors: 许飞龙; 董庆宾
Original assignee: Weishi Technology Co ltd
Current assignee: Weishi Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-20
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a loudspeaker module and terminal equipment, including the casing, be equipped with the installation cavity in the casing, be equipped with the speaker monomer in the installation cavity, the speaker monomer includes basin frame and the vibrating diaphragm subassembly that locates on the basin frame, forms the front chamber between the bottom surface of vibrating diaphragm subassembly and the installation cavity, still be equipped with on the casing and communicate the sound outlet of front chamber and external world; a diversion trench is arranged in the front cavity, and one end of the diversion trench faces to the direction close to the sound outlet. The loudspeaker module has simple structure and is convenient to produce and process; through seting up the guiding gutter in the front chamber, make the air can flow along the guiding gutter to make the air current distribution more even, reduce the intensive condition of streamline, weakened the air current velocity of flow in the whole front chamber, and then greatly reduced the risk that air current sound or noise appear in this speaker module.

Description

Loudspeaker module and terminal equipment

Technical Field

The utility model relates to an electric energy sound converter technical field especially relates to a speaker module and terminal equipment.

Background

At present, mobile terminal devices such as mobile phones and tablet computers enrich the lives of people, and speakers play an indispensable role as audio devices. At the same time, the consumer's pursuit for sound quality is increasing. Cell-phone/dull and stereotyped/intelligence wearing etc. equipment need place miniature speaker and use in a module when using miniature speaker. Among the prior art, the medial surface in module antechamber is established to the plane usually, and during miniature speaker's vibrating diaphragm vibration sound production, air flow rate in the antechamber is great to having caused great pressure to antechamber inner wall, having lured easily to make the vibrating diaphragm atress inequality lead to rolling the vibration, the free distortion phenomenon of increase miniature speaker can lead to the vibration system of miniature speaker and miniature speaker inner structure or antechamber apron to rub even when serious and bump and the noise appears.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: a speaker module with a novel structure and a terminal device with the speaker module are provided.

In order to solve the technical problem, the utility model discloses a technical scheme one is: a loudspeaker module comprises a shell, wherein a mounting cavity is arranged in the shell, a loudspeaker monomer is arranged in the mounting cavity, the loudspeaker monomer comprises a basin frame and a vibrating diaphragm assembly arranged on the basin frame, a front cavity is formed between the vibrating diaphragm assembly and the bottom surface of the mounting cavity, and a sound outlet communicated with the front cavity and the outside is further formed in the shell; a diversion trench is arranged in the front cavity, and one end of the diversion trench faces to the direction close to the sound outlet.

Furthermore, the number of the flow guide grooves is multiple, and the flow guide grooves are arranged in parallel.

Further, the diversion trench is formed in the inner side surface of the front cavity, and/or the diversion trench is formed in the bottom surface of the front cavity.

Furthermore, a fixed block is arranged in the front cavity, and the guide groove is formed in one surface, close to the vibrating diaphragm assembly, of the fixed block.

Furthermore, the diversion trench is wavy or zigzag.

Furthermore, the casing is including the epitheca and the inferior valve of mutually assembling, the epitheca surrounds with the inferior valve and forms the installation cavity, be equipped with on the lateral wall of epitheca the sound outlet.

Furthermore, the upper shell is provided with an annular boss protruding towards the direction close to the lower shell, and the inner side of the annular boss is provided with a limiting waistcoat for abutting against the basin stand, so that the front cavity is formed between the vibrating diaphragm assembly and the bottom surface of the installation cavity; the sound outlet is communicated with the side wall of the annular boss.

Further, the lower shell is provided with a window matched with the loudspeaker monomer.

Furthermore, a flexible circuit board is arranged between the upper shell and the lower shell, one end of the flexible circuit board is electrically connected with the loudspeaker single body, and the other end of the flexible circuit board extends out of the shell; the shell is provided with a positioning lug, and the flexible circuit board is provided with a positioning hole matched with the positioning lug.

In order to solve the technical problem, the utility model discloses a technical scheme two be: terminal equipment, including the equipment shell, be equipped with foretell speaker module in the equipment shell.

The beneficial effects of the utility model reside in that: the loudspeaker module has a simple structure and is convenient to produce and process; through seting up the guiding gutter in the front chamber, make the air can flow along the guiding gutter to make the air current distribution more even, reduce the intensive condition of streamline, weakened the air current velocity of flow in the whole front chamber, and then greatly reduced the risk that air current sound or noise appear in this speaker module.

Drawings

Fig. 1 is a schematic view of an overall structure of a speaker module according to a first embodiment of the present invention;

fig. 2 is an exploded view of a speaker module according to a first embodiment of the present invention;

fig. 3 is a cross-sectional view of a speaker module according to a first embodiment of the present invention;

fig. 4 is an enlarged detail view of a portion a in fig. 3.

Description of the reference symbols:

1. a housing; 11. an upper shell; 111. a front cavity; 112. a sound outlet; 113. a diversion trench; 114. an annular boss; 115. positioning the bump; 12. a lower case; 121. a window;

2. a speaker unit; 21. a basin stand;

3. a flexible circuit board; 31. and (7) positioning the holes.

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 4, a speaker module includes a housing 1, a mounting cavity is provided in the housing 1, a speaker unit 2 is provided in the mounting cavity, the speaker unit 2 includes a frame 21 and a diaphragm assembly provided on the frame 21, a front cavity 111 is formed between the diaphragm assembly and a bottom surface of the mounting cavity, and a sound outlet 112 communicating the front cavity 111 with the outside is further provided on the housing 1; a flow guide groove 113 is formed in the front cavity 111, and one end of the flow guide groove 113 faces a direction close to the sound outlet 112.

From the above description, the beneficial effects of the present invention are: the loudspeaker module has simple structure and is convenient to produce and process; through opening guiding gutter 113 in front cavity 111, make the air can flow along guiding gutter 113 to make the air current distribution more even, reduce the intensive condition of streamline, weakened the air current velocity in whole front cavity 111, and then greatly reduced the risk that air current sound or noise appear in this speaker module.

Further, the number of the guide grooves 113 is plural, and the plurality of guide grooves 113 are arranged in parallel.

As can be seen from the above description, the plurality of flow guide grooves 113 arranged in parallel is beneficial to enhance the guiding effect of the airflow in the front cavity 111.

Further, the guiding groove 113 is disposed on an inner side surface of the front cavity 111, and/or the guiding groove 113 is disposed on a bottom surface of the front cavity 111.

As can be seen from the above description, the guiding grooves 113 can be selectively arranged at different positions according to the use requirement or the production requirement.

Further, a fixed block is arranged in the front cavity 111, and a flow guide groove 113 is arranged on one surface of the fixed block, which is close to the diaphragm assembly.

As can be seen from the above description, the positioning of the guiding grooves 113 on the separate fixing block facilitates the production and processing of the housing 1, and the separate fixing block can be applied to the produced housing 1 with the inner side surface of the front cavity 111 being a plane.

Further, the diversion trench 113 is wavy or zigzag.

As can be seen from the above description, the flow guide grooves 113 are arranged in a wavy manner, so that the airflow distribution is more uniform, and the situation of dense flow lines is reduced.

Further, the housing 1 includes an upper shell 11 and a lower shell 12 which are assembled with each other, the upper shell 11 and the lower shell 12 surround to form the installation cavity, and the side wall of the upper shell 11 is provided with the sound outlet 112.

Further, the upper shell 11 is provided with an annular boss 114 protruding towards the direction close to the lower shell 12, and a limiting waistcoat for abutting against the basin stand 21 is arranged on the inner side of the annular boss 114, so that the front cavity 111 is formed between the diaphragm assembly and the bottom surface of the installation cavity; the sound outlet 112 is communicated with the side wall of the annular boss 114.

As can be seen from the above description, the upper case 11 has a simple structure, and is advantageous for mass production.

Further, the lower case 12 is provided with a window 121 to be fitted with the speaker unit 2.

As can be seen from the above description, the window 121 matched with the speaker unit 2 is disposed on the lower casing 12, so that the speaker unit 2 and the lower casing 12 together form the bottom surface of the speaker module, the overall thickness of the speaker module can be reduced, and the development trend of product miniaturization is satisfied.

Further, a flexible circuit board 3 is further arranged between the upper shell 11 and the lower shell 12, one end of the flexible circuit board 3 is electrically connected with the speaker unit 2, and the other end of the flexible circuit board extends out of the shell 1; the shell 1 is provided with a positioning bump 115, and the flexible circuit board 3 is provided with a positioning hole 31 matched with the positioning bump 115.

As can be seen from the above description, the speaker unit 2 can be electrically connected to an external device through the flexible circuit board 3; the installation mode of the flexible circuit board 3 is simple and convenient.

Terminal equipment, including the equipment shell, be equipped with foretell speaker module in the equipment shell.

Example one

Referring to fig. 1 to 4, a first embodiment of the present invention is: a loudspeaker module can be widely applied to portable electronic equipment such as mobile phones, notebook computers, hearing aids, intelligent watches and the like.

The loudspeaker module comprises a shell 1, a mounting cavity is arranged in the shell 1, a loudspeaker single body 2 is arranged in the mounting cavity, the loudspeaker single body 2 comprises a basin frame 21 and a vibrating diaphragm assembly arranged on the basin frame 21, a front cavity 111 is formed between the vibrating diaphragm assembly and the bottom surface of the mounting cavity, and a sound outlet 112 communicating the front cavity 111 with the outside is further formed in the shell 1; a flow guide groove 113 is formed in the front cavity 111, and one end of the flow guide groove 113 faces a direction close to the sound outlet 112. The number of the guide grooves 113 is plural, and the plurality of guide grooves 113 are arranged in parallel. Specifically, in the present embodiment, the diversion trench 113 is a straight trench; the whole loudspeaker single body 2 is rectangular, and the installation cavity corresponding to the loudspeaker single body 2 is rectangular.

The flow guide groove 113 is disposed on an inner side surface of the front cavity 111, and/or the flow guide groove 113 is disposed on a bottom surface of the front cavity 111.

As a preferred embodiment, a fixed block is disposed in the front cavity 111, and the diversion trench 113 is disposed on a side of the fixed block close to the diaphragm assembly. Specifically, the fixed block is established to elasticity sound absorbing material, is favorable to reducing the resonance range that the air current of module antechamber 111 and casing 1 produced, and then alleviates the vibration range that this speaker module sound production caused to terminal equipment. The fixed block is connected to the bottom surface of the installation cavity in an adhesive mode, and the outer side face of the fixed block is attached to the inner side face of the front cavity 111.

As shown in fig. 4, in particular, the plurality of flow guide grooves 113 may be arranged separately and at intervals, or, as a preferred embodiment, the plurality of flow guide grooves 113 are wavy or zigzag. In other embodiments, the cross section of the flow guide groove 113 may be set to be rectangular or trapezoidal.

As shown in fig. 2, the housing 1 includes an upper shell 11 and a lower shell 12 which are assembled with each other, the upper shell 11 and the lower shell 12 surround to form the installation cavity, and the side wall of the upper shell 11 is provided with the sound outlet 112. Specifically, the edge of the lower shell 12 protrudes and extends in a direction close to the upper shell 11 to form a limit ring edge, a stepped structure is arranged on the inner side of the peripheral wall of the upper shell 11 corresponding to the limit ring edge, and the peripheral surface of the limit ring edge is tightly matched with the side surface of the stepped structure, so that the upper shell 11 is matched and connected with the lower shell 12.

As shown in fig. 2, the upper case 11 is provided with an annular boss 114 protruding toward a direction close to the lower case 12, and a limiting waistcoat for abutting against the basin frame 21 is provided inside the annular boss 114, so that the front cavity 111 is formed between the diaphragm assembly and the bottom surface of the installation cavity; the sound outlet 112 is communicated with the side wall of the annular boss 114. Specifically, the annular boss 114 is set to be rectangular ring frame shape corresponding to the speaker unit 2, and a reinforcing rib is provided at a joint of the annular boss 114 and the bottom wall of the upper case 11 to increase the structural strength of the upper case 11.

As shown in fig. 1 and 2, the lower case 12 is provided with a window 121 to be fitted to the speaker unit 2. Specifically, the surface of the speaker unit 2 is not provided to protrude from the side of the lower case 12 away from the upper case 11, so that the speaker unit 2 is prevented from being squeezed.

As shown in fig. 1 and 2, a flexible circuit board 3 is further disposed between the upper shell 11 and the lower shell 12, one end of the flexible circuit board 3 is electrically connected to the speaker unit 2, and the other end of the flexible circuit board extends out of the housing 1; the shell 1 is provided with a positioning bump 115, and the flexible circuit board 3 is provided with a positioning hole 31 matched with the positioning bump 115. Specifically, the positioning protrusions 115 are cylindrical, and four positioning protrusions are provided; two positioning lugs 115 are arranged close to the annular boss 114, and the two positioning lugs 115 are arranged on the reinforcing rib; the positioning holes 31 are connected with the positioning convex blocks 115 in a one-to-one matching manner. After the upper case 11 and the lower case 12 are assembled, an extending opening is formed on the side surface for the flexible circuit board 3 to extend out of the case 1.

The embodiment also comprises terminal equipment; the terminal equipment comprises an equipment shell, wherein the loudspeaker module is arranged in the equipment shell.

In summary, the speaker module provided by the utility model has simple structure and is convenient for production and processing; through seting up the guiding gutter in the front chamber, make the air can flow along the guiding gutter to make the air current distribution more even, reduce the intensive condition of streamline, weakened the air current velocity of flow in the whole front chamber, and then greatly reduced the risk that air current sound or noise appear in this speaker module. The flow guide grooves are formed in the separated fixed blocks, so that the production and the processing of the shell are facilitated, and the separated fixed blocks can be applied to the produced shell with the plane inner side surface of the front cavity. The flow guide grooves are arranged in a wavy manner, so that the air flow distribution is more uniform, and the condition of dense flow lines is reduced. Set up on the inferior valve with speaker monomer complex window, make speaker monomer and inferior valve together constitute the bottom surface of speaker module, can reduce the whole thickness of this speaker module, satisfy the miniaturized development trend of product.

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 module comprises a shell, wherein a mounting cavity is arranged in the shell, a loudspeaker monomer is arranged in the mounting cavity, the loudspeaker monomer comprises a basin frame and a vibrating diaphragm assembly arranged on the basin frame, a front cavity is formed between the vibrating diaphragm assembly and the bottom surface of the mounting cavity, and a sound outlet communicated with the front cavity and the outside is further formed in the shell; the method is characterized in that: a flow guide groove is arranged in the front cavity, and one end of the flow guide groove faces to the direction close to the sound outlet.

2. The speaker module of claim 1, wherein: the number of the flow guide grooves is multiple, and the flow guide grooves are arranged in parallel.

3. The speaker module as claimed in claim 2, wherein: the flow guide groove is formed in the inner side face of the front cavity, and/or the flow guide groove is formed in the bottom face of the front cavity.

4. The speaker module as claimed in claim 2, wherein: a fixed block is arranged in the front cavity, and the guide groove is formed in one surface, close to the vibrating diaphragm component, of the fixed block.

5. The speaker module as claimed in claim 2, wherein: the diversion trench is wavy or zigzag.

6. The speaker module of claim 1, wherein: the casing is including the epitheca and the inferior valve of mutually assembling, the epitheca surrounds with the inferior valve and forms the installation cavity, be equipped with on the lateral wall of epitheca the sound outlet.

7. The speaker module of claim 6, wherein: the upper shell is provided with an annular boss protruding towards the direction close to the lower shell, and the inner side of the annular boss is provided with a limiting waistcoat for abutting against the basin stand, so that the front cavity is formed between the vibrating diaphragm assembly and the bottom surface of the installation cavity; the sound outlet is communicated with the side wall of the annular boss.

8. The speaker module as claimed in claim 6, wherein: the lower shell is provided with a window matched with the loudspeaker monomer.

9. The speaker module as claimed in claim 6, wherein: a flexible circuit board is further arranged between the upper shell and the lower shell, one end of the flexible circuit board is electrically connected with the loudspeaker single body, and the other end of the flexible circuit board extends out of the shell; the shell is provided with a positioning lug, and the flexible circuit board is provided with a positioning hole matched with the positioning lug.

10. Terminal equipment, including equipment shell, its characterized in that: a loudspeaker module as claimed in any one of claims 1 to 9 provided in the housing of the device.