CN218679291U

CN218679291U - Sound production module

Info

Publication number: CN218679291U
Application number: CN202222822139.7U
Authority: CN
Inventors: 林嘉平; 董庆宾
Original assignee: Shenzhen Weishi Acoustics Co Ltd
Current assignee: Shenzhen Weishi Acoustics Co Ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-03-21
Anticipated expiration: 2032-10-24

Abstract

The utility model discloses a sound production module, including module casing, sound production monomer and vibrator, the sound production monomer is located in the module casing and general the inner chamber of module casing is separated for antechamber and back chamber, the back intracavity still is equipped with sound absorbing material, the vibrator is located the back intracavity, the vibrator includes the device shell, be equipped with the through-hole on the device shell, the device shell has the regional ventilative isolation structure of formation of through-hole, ventilative isolation structure is used for preventing sound absorbing material gets into in the vibrator. The inner cavity of the vibrator is communicated with the rear cavity of the sounding module, so that the effective volume of the rear cavity is increased, and the acoustic performance of the sounding module is enhanced; the existence of the breathable isolating piece/breathable isolating structure can effectively prevent the sound-absorbing material from entering the inner cavity of the vibrator, and is favorable for ensuring the working stability of the vibrator and the working stability of the sounding monomer.

Description

Sound production module

Technical Field

The utility model relates to an electroacoustic transducer technical field, in particular to sound production module.

Background

The sound production module is an important component in an electronic product and is used for converting an electric signal into an acoustic signal. The development trend of electronic products is thinner and thinner, and in order to realize more functions, components and parts in the electronic products are more and more, and the space reserved for the sounding module is smaller and smaller.

Among the prior art, can set up the vibrator in the rear chamber of part sound production module to make the total volume increase of the rear chamber of sound production module (can be seen as including the rear chamber into sound production module with the space that originally set up the vibrator in the electronic product). Generally, the vibrator is of a closed structure, which results in that the rear cavity is not fully utilized, and if the vibrator is designed to be of an open structure, the sound-absorbing material in the rear cavity is crushed by the vibrator after entering the interior of the vibrator, and the powder formed after crushing enters the sound-emitting unit, which results in that the acoustic performance of the sound-emitting module is affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective provides a sound production module of novel structure, aims at solving the current not good problem of sound production module acoustic performance that has the vibrator.

In order to solve the technical problem, the utility model discloses a technical scheme one is: the sound production module, including module casing, sound production monomer and vibrator, the sound production monomer is located in the module casing and will the inner chamber of module casing is separated for antechamber and back chamber, the back intracavity still is equipped with sound absorbing material, the vibrator is located the back intracavity, the vibrator includes the device shell, be equipped with the through-hole on the device shell, the device shell has the regional ventilative isolating construction that forms of through-hole, ventilative isolating construction is used for preventing sound absorbing material gets into in the vibrator.

Further, the sound-absorbing material is sound-absorbing particles, and the aperture of the through holes is smaller than the particle size of the sound-absorbing material.

Further, the device shell is of a polyhedral structure, and at least one surface of the device shell forms the ventilation isolation structure.

In order to solve the technical problem, the utility model discloses a technical scheme two be: the sound production module, including module casing, sound production monomer and vibrator, the sound production monomer is located in the module casing and will the inner chamber of module casing is separated for antechamber and back chamber, the back intracavity still is equipped with sound absorbing material, the vibrator is located the back intracavity, the vibrator includes the device shell, be equipped with the trompil on the device shell, trompil department is equipped with ventilative separator, ventilative separator is used for preventing sound absorbing material gets into in the vibrator.

Further, the device housing has a plurality of the openings, and each of the breathable spacers covers one or more of the openings.

Further, the device shell is of a polyhedral structure, and at least one surface of the device shell is provided with the opening.

Further, the sound-absorbing material is sound-absorbing particles.

Further, the breathable barrier is located outside the device housing.

In order to solve the technical problem, the utility model discloses a technical scheme three be: the sound production module, including module casing, sound production monomer and vibrator, the sound production monomer is located in the module casing and will the inner chamber of module casing is separated for antechamber and back chamber, the back intracavity still is equipped with sound absorbing material, the vibrator is located the back intracavity, the vibrator includes the device shell, the open setting in at least one side of device shell, the open department of device shell is equipped with ventilative separator, ventilative separator is used for preventing sound absorbing material gets into in the vibrator.

Further, the device housing includes a middle frame in a ring frame shape, and the air-permeable partition covers an opening at one end of the middle frame.

The beneficial effects of the utility model reside in that: the inner cavity of the vibrator is communicated with the rear cavity of the sounding module, so that the effective volume of the rear cavity is increased, and the acoustic performance of the sounding module is enhanced; the existence of the breathable isolating piece/breathable isolating structure can effectively prevent the sound-absorbing material from entering the inner cavity of the vibrator, and is favorable for ensuring the working stability of the vibrator and the working stability of the sounding monomer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded view of a sound module according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a partial structure of a sound module according to a first embodiment of the present invention;

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

fig. 4 is a schematic structural diagram of a part of the structure of a sound module according to a second embodiment of the present invention;

fig. 5 is a cross-sectional view of a sound module according to a second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a part of a structure of a sound module according to a third embodiment of the present invention;

fig. 7 is a cross-sectional view of a sound module according to a third embodiment of the present invention.

The reference numbers illustrate:

1. a module housing; 11. an upper shell; 12. a lower case;

2. a sounding monomer;

3. a vibrator; 31. a device housing; 311. a through hole; 312. opening a hole;

4. a sound absorbing material;

5. a conductive circuit board;

6. a breathable separator.

Detailed Description

The purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that, if the present invention relates to directional indications such as up, down, left, right, front, and back … …, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indications are changed accordingly.

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

In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, such as "and/or" includes aspects, or aspects that are satisfied simultaneously. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Example one

Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: the sounding module can be applied to terminal electronic products such as mobile phones, tablet computers and intelligent watches.

The sounding module comprises a module shell 1, a sounding monomer 2 and a vibrator 3, wherein the sounding monomer 2 is arranged in the module shell 1 and divides an inner cavity of the module shell 1 into a front cavity and a rear cavity, and a sounding port is arranged on the module shell 1 and is communicated with the front cavity and the outside; the rear cavity is also internally provided with a sound absorbing material 4, the vibrator 3 is arranged in the rear cavity, the vibrator 3 comprises a device shell 31, a vibrator assembly, an elastic sheet assembly and a coil are arranged in the device shell 31, the elastic sheet assembly is connected with the vibrator assembly and the device shell 31 so as to enable the vibrator assembly to be suspended, the elastic sheet assembly has elastic deformation along the horizontal direction, the vibrator assembly comprises a permanent magnet and a balancing weight which are connected, the coil is arranged corresponding to the permanent magnet, and the vibrator assembly is driven to move along the horizontal direction after the coil is electrified; the device shell 31 is provided with a through hole 311, and the area of the device shell 31 having the through hole 311 forms a ventilation isolation structure for preventing the sound-absorbing material 4 from entering the vibrator 3. In this embodiment, the module case 1 includes an upper case 11 and a lower case 12 connected to each other.

The through hole 311 may be circular, polygonal, oval or other shapes, and preferably, the through hole 311 is circular; in this embodiment, the sound absorbing material 4 is sound absorbing particles, and the diameter of the through holes 311 is smaller than the particle diameter of the sound absorbing material 4.

The device housing 31 is a polyhedral structure, and at least one surface of the device housing 31 forms the air-permeable isolation structure. In this embodiment, the device housing 31 includes a cover body and a bottom shell connected to each other, and a plurality of through holes 311 are disposed on a side wall of the cover body, so that the side wall of the cover body having the through holes 311 is the air-permeable isolation structure.

In other embodiments, the cover may be provided with two, three or even four sidewalls with the through holes 311 to form the air permeable isolation structure. Of course, it is also feasible to provide the through hole 311 on the wall of the cover body away from the bottom case to form the air-permeable isolation structure. Even more, it is feasible to provide the through holes 311 on each wall of the cover body to make the cover body a breathable isolation structure as a whole.

Still including being used for doing the sound production monomer 2 reaches the conductive line board 5 of coil power supply, conductive line board 5 includes first connecting portion, second connecting portion and third connecting portion, first connecting portion are connected with sound production monomer 2 electricity, the second connecting portion with the coil electricity is connected, first connecting portion and second connecting portion all are located in module casing 1, the third connecting portion are located module casing 1's outside, the third connecting portion are used for being connected with the terminal circuit electricity.

Example two

Referring to fig. 4 and 5, a second embodiment of the present invention is: the sounding module can be applied to terminal electronic products such as mobile phones, tablet computers and intelligent watches.

The sounding module comprises a module shell 1, a sounding single body 2 and a vibrator 3, wherein the sounding single body 2 is arranged in the module shell 1 and divides an inner cavity of the module shell 1 into a front cavity and a rear cavity, a sounding port is arranged on the module shell 1, and the sounding port is communicated with the front cavity and the outside; the rear cavity is also internally provided with a sound absorbing material 4, the vibrator 3 is arranged in the rear cavity, the vibrator 3 comprises a device shell 31, a vibrator assembly, an elastic sheet assembly and a coil are arranged in the device shell 31, the elastic sheet assembly is connected with the vibrator assembly and the device shell 31 so as to enable the vibrator assembly to be suspended, the elastic sheet assembly has elastic deformation along the horizontal direction, the vibrator assembly comprises a permanent magnet and a balancing weight which are connected, the coil is arranged corresponding to the permanent magnet, and the vibrator assembly is driven to move along the horizontal direction after the coil is electrified; be equipped with trompil 312 on the device shell 31, trompil 312 department is equipped with ventilative separator 6, ventilative separator 6 is used for preventing sound-absorbing material 4 gets into in the vibrator 3.

The breathable barrier 6 may be a mesh, foam or other material. Preferably, the sound-absorbing material 4 is sound-absorbing particles.

Optionally, the device housing 31 has a plurality of the openings 312, the number of the breathable spacers 6 may be one or more, and each breathable spacer 6 covers one or more of the openings 312.

Optionally, the device housing 31 has a polyhedral structure, and at least one surface of the device housing 31 is provided with the opening 312. In this embodiment, the openings 312 are disposed on two opposite sides of the device housing 31. In other embodiments, the opening 312 may be disposed at the top or other location of the device housing 31.

It is feasible that the gas-permeable barrier 6 is located on the inside or outside of the device housing 31, but it is preferred that the gas-permeable barrier 6 is located on the outside of the device housing 31, so that, on the one hand, the gas-permeable barrier 6 does not interfere with the operation of the vibrator 3, and, on the other hand, the assembly of the gas-permeable barrier 6 with the device housing 31 is facilitated.

In this embodiment, the air-permeable partition 6 is adhesively connected to the device housing 31, and in other embodiments, the air-permeable partition 6 and the device housing 31 may be fixedly connected by other means, such as welding.

EXAMPLE III

Referring to fig. 6 and 7, a third embodiment of the present invention is: the sounding module can be applied to terminal electronic products such as mobile phones, tablet computers and intelligent watches.

The sounding module comprises a module shell 1, a sounding single body 2 and a vibrator 3, wherein the sounding single body 2 is arranged in the module shell 1 and divides an inner cavity of the module shell 1 into a front cavity and a rear cavity, a sounding port is arranged on the module shell 1, and the sounding port is communicated with the front cavity and the outside; the rear cavity is also internally provided with a sound absorbing material 4, the vibrator 3 is arranged in the rear cavity, the vibrator 3 comprises a device shell 31, a vibrator assembly, an elastic sheet assembly and a coil are arranged in the device shell 31, the elastic sheet assembly is connected with the vibrator assembly and the device shell 31 so as to suspend the vibrator assembly, the elastic sheet assembly has elastic deformation along the horizontal direction, the vibrator assembly comprises a permanent magnet and a balancing weight which are connected, the coil is arranged corresponding to the permanent magnet, and the vibrator assembly is driven to move along the horizontal direction after being electrified; at least one surface of the device shell 31 is open, an air-permeable partition 6 is arranged at the open position of the device shell 31, and the air-permeable partition 6 is used for preventing the sound-absorbing material 4 from entering the vibrator 3.

Alternatively, the overall contour of the device housing 31 is rectangular. In this embodiment, the device housing 31 includes a middle frame and a bottom case connected to each other, the middle frame is in a ring frame shape, the bottom case closes the bottom opening of the middle frame, and the air-permeable partition 6 covers the top opening of the middle frame, in other words, in this embodiment, the device housing 31 is an open structure with an open top surface as a whole. In detail, the ventilation isolating piece 6 is of a cover body structure, and the ventilation isolating piece 6 is fixedly connected with the peripheral wall of the middle frame. In other embodiments, the air-permeable partition 6 may also be a plate-shaped structure, and when the air-permeable partition 6 is a plate-shaped structure, the air-permeable partition 6 is fixedly connected to the end surface of the top end of the middle frame.

The gas-permeable barrier 6 is adhesively attached to the device housing 31, and in other embodiments, the gas-permeable barrier 6 and the device housing 31 may be fixed by other means, such as welding.

In other embodiments, the device housing 31 may also be open on two sides or open on three sides, and when the device housing 31 is open on two sides, the whole breathable partition 6 is L-shaped or concave; when three sides of the device shell 31 are open, the ventilation spacer 6 is concave as a whole.

The aforesaid is only the optional embodiment of the utility model discloses a to not consequently restrict the patent scope of the utility model, all be in the utility model discloses a under the utility model conceiving, utilize the equivalent structure transform of doing of the contents of the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The sound production module, its characterized in that: including module casing, sound production monomer and vibrator, the sound production monomer is located in the module casing and will the inner chamber of module casing is separated for antechamber and back chamber, the back intracavity still is equipped with sound absorbing material, the vibrator is located the back intracavity, the vibrator includes the device shell, be equipped with the through-hole on the device shell, the device shell has the regional ventilative isolating construction that forms of through-hole, ventilative isolating construction is used for preventing sound absorbing material gets into in the vibrator.

2. The audible module as recited in claim 1, wherein: the sound-absorbing material is sound-absorbing particles, and the aperture of the through hole is smaller than the particle size of the sound-absorbing material.

3. The audible tone generating module according to claim 1, wherein: the device shell is of a polyhedral structure, and at least one surface of the device shell forms the breathable isolation structure.

4. The sound production module, including module casing, sound production monomer and vibrator, the sound production monomer is located in the module casing and will the inner chamber of module casing is separated for antechamber and back chamber, the back intracavity still is equipped with sound absorbing material, the vibrator is located the back intracavity, the vibrator includes device shell, its characterized in that: be equipped with the trompil on the device shell, trompil department is equipped with ventilative separator, ventilative separator is used for preventing sound-absorbing material gets into in the vibrator.

5. The audible module according to claim 4, wherein: the device housing has a plurality of said openings, each of said breathable spacers covering one or more of said openings.

6. The audible module according to claim 4, wherein: the device shell is of a polyhedral structure, and at least one surface of the device shell is provided with the open pore.

7. The audible module according to claim 4, wherein: the sound-absorbing material is sound-absorbing particles.

8. The audible module as recited in claim 4, wherein: the breathable barrier is located outside the device housing.

9. The sound production module, including module casing, sound production monomer and vibrator, the sound production monomer is located in the module casing and will the inner chamber of module casing is separated for antechamber and back chamber, the back intracavity still is equipped with sound absorbing material, the vibrator is located the back intracavity, the vibrator includes device shell, its characterized in that: at least one side of the device shell is open, a breathable isolating piece is arranged at the open position of the device shell, and the breathable isolating piece is used for preventing the sound absorbing materials from entering the vibrator.

10. The audible module as recited in claim 9, wherein: the device shell comprises a middle frame in a ring frame shape, and the breathable isolating piece covers an opening at one end of the middle frame.