Loudspeaker module and electronic equipment

Abstract

The utility model relates to the technical field of loudspeakers, and provides a loudspeaker module and electronic equipment, and the loudspeaker module comprises a housing which is internally provided with a sound cavity; the loudspeaker single body is accommodated in the shell, and a vibrating diaphragm of the loudspeaker single body divides the sound cavity into a front sound cavity and a rear sound cavity; the sound absorption particles are filled in at least partial space of the rear sound cavity; and the sound absorption isolation part can improve the acoustic performance of the rear sound cavity, is arranged in the rear sound cavity, is used for isolating the loudspeaker monomer from the sound absorption particles, and is provided with a three-dimensional pore structure. According to the utility model, the problems of complex process and no capacity expansion function when the loudspeaker monomer and the sound-absorbing particles are separated by adopting a netted separator at present can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker module and an electronic device. Background Art

[0002] In the rear sound cavity of a common loudspeaker module on the market at present, generally, a net-shaped sound-absorbing isolation component separates sound-absorbing particles from a loudspeaker unit. The net-shaped sound-absorbing isolation component is one of a wire mesh cloth and a metal mesh, or a superposition composite body of a wire mesh cloth and a steel mesh, without an expansion function. Separating the sound-absorbing particles from the loudspeaker unit by the net-shaped sound-absorbing isolation component has the advantage that the sound-absorbing material of the loudspeaker module can fill the rear sound cavity to the greatest extent, so as to make full use of the sound-absorbing performance of the sound-absorbing material, and the acoustic performance of the product is good. However, the existing net-shaped sound-absorbing isolation component needs to be supported by a frame to be fixed by hot melting or gluing, and the process is complex. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a loudspeaker module and an electronic device, which solve the problems of complex process and no expansion function existing in separating the loudspeaker unit and the sound-absorbing particles by using a net-shaped isolation component at present.

[0004] The above technical purpose of the utility model is mainly realized by the following technical solutions:

[0005] On the one hand, the utility model provides a loudspeaker module, which includes:

[0006] A housing, with a sound cavity formed inside;

[0007] A loudspeaker unit housed in the housing, and a diaphragm of the loudspeaker unit divides the sound cavity into a front sound cavity and a rear sound cavity;

[0008] Sound-absorbing particles, filling at least part of the space in the rear sound cavity;

[0009] A sound-absorbing isolation component capable of improving the acoustic performance of the rear sound cavity, the sound-absorbing isolation component is arranged in the rear sound cavity to isolate the loudspeaker unit and the sound-absorbing particles, and the sound-absorbing isolation component has a three-dimensional pore structure.

[0010] In a preferred embodiment of the utility model, the sound-absorbing isolation component divides the rear sound cavity into a filling area and a non-filling area, the sound-absorbing particles are located in the filling area, and the loudspeaker unit is located in the non-filling area.

[0011] In a preferred embodiment of the utility model, a clamping groove is arranged at a position corresponding to the sound-absorbing isolation component on the inner wall of the housing, and the sound-absorbing isolation component is clamped in the clamping groove.

[0012] In a preferred embodiment of the present utility model, the sound-absorbing and isolating component is fixed on the inner wall of the housing by means of adhesion.

[0013] In a preferred embodiment of the present utility model, a filling hole communicating with the filling area is provided on the housing, and the outside of the filling hole is covered with a breathable mesh cloth, and the sound-absorbing particles can be filled into the filling area through the filling hole.

[0014] In a preferred embodiment of the present utility model, the sound-absorbing and isolating component is arranged on the back surface of the speaker unit facing the rear sound cavity, and the entire rear sound cavity forms a filling area, and the sound-absorbing particles are located in the filling area.

[0015] In a preferred embodiment of the present utility model, the sound-absorbing and isolating component is fixed on the back surface of the speaker unit by means of adhesion.

[0016] In a preferred embodiment of the present utility model, a filling hole communicating with the filling area is provided on the housing, and the outside of the filling hole is covered with a breathable mesh cloth, and the sound-absorbing particles can be filled into the filling area through the filling hole.

[0017] In a preferred embodiment of the present utility model, the thickness of the sound-absorbing and isolating component is 0.1 mm - 0.2 mm.

[0018] On the other hand, the present utility model further provides an electronic device, and the electronic device includes the speaker module as described above.

[0019] Compared with the prior art, the technical solution of the present utility model has the following characteristics and advantages:

[0020] 1. The sound-absorbing and isolating component of the present utility model is made of a porous material loaded with functional powder. Compared with the net-shaped sound-absorbing and isolating component in the prior art, there is no need to separately set a frame support for hot melting or gluing fixation, and the manufacturing and forming process is relatively simple.

[0021] 2. The sound-absorbing and isolating component of the present utility model is made of a porous material loaded with functional powder. The sound-absorbing and isolating component has a three-dimensional pore structure inside, which can play a certain role in expanding the volume of the rear sound cavity, and further reduce the resonance frequency of the speaker module. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. In the drawings:

[0023] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present invention in any way. Additionally, the shapes and proportional dimensions of the components in the figures are only schematic and are used to assist in understanding the present invention, rather than specifically defining the shapes and proportional dimensions of the components of the present invention. Those skilled in the art can, under the guidance of the present invention, select various possible shapes and proportional dimensions according to specific circumstances to implement the present invention.

[0024] Figure 1 It is a schematic cross-sectional structure diagram of the first embodiment of the speaker module of the present invention;

[0025] Figure 2 It is a schematic exploded structure diagram of the first embodiment of the speaker module of the present invention;

[0026] Figure 3 It is a schematic cross-sectional structure diagram of the second embodiment of the speaker module of the present invention;

[0027] Figure 4 It is a schematic cross-sectional structure diagram of the third embodiment of the speaker module of the present invention;

[0028] Figure 5 It is a schematic exploded structure diagram of the third embodiment of the speaker module of the present invention;

[0029] Figure 6 It is a schematic cross-sectional structure diagram of the fourth embodiment of the speaker module of the present invention.

[0030] Explanation of reference numerals:

[0031] 10. Upper cover body; 11. Lower cover body; 12. Filling hole; 13. Breathable mesh fabric;

[0032] 20. Speaker unit;

[0033] 30. Front sound cavity; 31. Rear sound cavity; 33. Filling area; 34. Non-filling area;

[0034] 40. Sound absorption and isolation component; 41. Card slot. Detailed implementation manners

[0035] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] It should be noted that when an element is referred to as "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0038] Embodiment 1:

[0039] As Figure 1 and Figure 2 shown, the present utility model provides a speaker module, which includes: a housing, with a sound cavity formed inside; a speaker unit 20 received in the housing, the diaphragm of the speaker unit 20 separating the sound cavity into a front sound cavity 30 and a rear sound cavity 31; sound-absorbing particles, filling at least part of the space in the rear sound cavity 31; a sound-absorbing and isolating component 40 that can improve the acoustic performance of the rear sound cavity 31, the sound-absorbing and isolating component 40 being disposed in the rear sound cavity 31 for isolating the speaker unit 20 and the sound-absorbing particles, and the sound-absorbing and isolating component 40 having a three-dimensional pore structure.

[0040] In the speaker module of the present utility model, the sound-absorbing and isolating component 40 therein has a sound-absorbing function and is made of a porous material loaded with functional powder. Compared with the mesh sound-absorbing and isolating component in the prior art, there is no need to separately set a frame support for hot melting or gluing fixation, and the manufacturing and forming process is relatively simple.

[0041] For the loudspeaker module described in the present utility model, the sound-absorbing and isolating component 40 therein has a sound-absorbing function and is made of a porous material loaded with functional powder. The sound-absorbing and isolating component 40 has a three-dimensional pore structure inside, which can play a certain role in expanding the volume of the rear sound cavity 31, and further reduce the resonance frequency of the loudspeaker module.

[0042] The following will further describe the specific structures of the various parts of the loudspeaker module described in the present utility model, as well as the positions and connection relationships between the various parts.

[0043] First, as Figure 1 and Figure 2 shown, the loudspeaker module has a housing, which serves as the main frame of the loudspeaker module and is used to fix the various components inside the module; the inside of the loudspeaker module is a hollow structure, thus forming a relatively closed sound cavity. In this embodiment, the housing is a flat cuboid structure, which includes an upper cover body 10 and a lower cover body 11 docked together; in other embodiments of the present utility model, the shape and the splicing and combination structure of the housing can be set according to actual needs, and no specific limitation is made here.

[0044] Secondly, as Figure 1 and Figure 2 shown, a loudspeaker unit 20 is housed inside the housing; specifically, in this embodiment, the loudspeaker unit 20 is fixed on the upper cover body 10, and the loudspeaker unit 20 divides the sound cavity into a front sound cavity 30 and a rear sound cavity 31 through the diaphragm thereon. Among them, the front of the loudspeaker unit 20 faces the front sound cavity 30, and the back of the loudspeaker unit 20 faces the rear sound cavity 31. Further, as Figure 2 shown, sound-absorbing particles are filled in a part of the space of the rear sound cavity 31. The sound-absorbing particles can reduce the F0 (low frequency) of the loudspeaker module, expand the bandwidth, and make the mid-frequency curve smoother. Specifically, the sound-absorbing particles can be made by granulating materials such as zeolite, activated carbon, and molecular sieve.

[0045] Finally, a sound-absorbing and isolating component 40 is provided in the rear sound cavity 31 to separate the loudspeaker unit 20 and the sound-absorbing particles. The sound-absorbing and isolating component 40 can be fixed on the inner wall of the housing by means of bonding, snap connection, welding, etc. Through the blocking effect of the sound-absorbing and isolating component 40, the sound-absorbing particles are prevented from entering the inside of the loudspeaker unit 20, thereby affecting the normal operation of the loudspeaker unit 20.

[0046] Further, the sound-absorbing component with a three-dimensional pore structure inside is a relatively mature technology in the field of acoustic enhancement. In one embodiment, the sound-absorbing and isolating component 40 can be made of a porous material loaded with functional powder, for example, made of the acoustic enhancement composite material disclosed in the Chinese invention patent application with the application number "202311194810.0"; in another embodiment, the sound-absorbing and isolating component 40 can also directly adopt a three-dimensional air adsorption structure, for example, the three-dimensional air adsorption structure disclosed in the Chinese invention patent with the application number "201480014443.4".

[0047] The structure and technical effects of the preferred embodiment of the loudspeaker module of the present utility model will be further described in detail below.

[0048] According to an embodiment of the present utility model, as Figure 1 and Figure 3 shown, the sound-absorbing and isolating component 40 divides the rear sound cavity 31 into a filling area 33 and a non-filling area 34, the sound-absorbing particles are located in the filling area 33, and the loudspeaker unit 20 is located in the non-filling area 34.

[0049] In this embodiment, the loudspeaker module adopts a partially filled structural form, that is, sound-absorbing particles are filled in a part of the space of the rear sound cavity 31, while the remaining space is not filled with sound-absorbing particles.

[0050] Specifically, in one embodiment, as Figure 1 shown, a card slot 41 is provided on the inner wall of the housing at a position corresponding to the sound-absorbing and isolating component 40, and the sound-absorbing and isolating component 40 is clamped in the card slot 41; a set of card slots 41 are provided at the positions where the upper cover body 10 and the lower cover body 11 face each other up and down, and the card slot 41 can protrude on the inner wall of the cover body or be recessed on the inner wall of the cover body; the sound-absorbing and isolating component 40 in the shape of a rectangular thin sheet is clamped in the above-mentioned card slot 41 when the upper cover body 10 and the lower cover body 11 are butted. In another embodiment, as Figure 3 shown, the sound-absorbing and isolating component 40 is fixed on the inner wall of the housing by an adhesive bonding method; an adhesive or double-sided adhesive tape is coated at the positions where the upper cover body 10 and the lower cover body 11 face each other up and down, and the sound-absorbing and isolating component 40 is fixed on the inner wall of the cover body by an adhesive bonding method.

[0051] According to an embodiment of the present utility model, as Figures 1 to 3 shown, a filling hole 12 communicating with the filling area 33 is provided on the housing, and a breathable mesh cloth 13 is covered outside the filling hole 12, and the sound-absorbing particles can be filled into the filling area 33 through the filling hole 12.

[0052] Specifically, the filling hole 12 is opened on the upper cover body 10 and is disposed opposite to the filling area 33 for communicating the filling area 33 with the outside. After the upper cover body 10 and the lower cover body 11 are closed together and the sound absorption and isolation component 40 is fixed, sound absorption particles are filled into the filling area 33 through the filling hole 12. After the filling is completed, the filling hole 12 is blocked by the breathable mesh cloth 13 to prevent the leakage of the sound absorption particles.

[0053] According to an embodiment of the present invention, as Figures 4 to 6 shown, the sound absorption and isolation component 40 is disposed on the back surface of the speaker unit 20 facing the rear sound cavity 31, and the entire rear sound cavity 31 forms a filling area 33, and the sound absorption particles are located in the filling area 33.

[0054] In this embodiment, the speaker module adopts a fully filled structural form, that is, sound absorption particles are filled in the entire rear sound cavity 31.

[0055] Specifically, in one embodiment, as Figure 6 shown, the sound absorption and isolation component 40 can be bent at any angle and shape according to the shape of the speaker unit 20. In this embodiment, the sound absorption and isolation component 40 is bent into a groove-shaped structure and buckled on the speaker unit 20 and fixed on the back surface of the speaker unit 20 by bonding. In another embodiment, as Figure 4 shown, the upper cover body 10 is convexly provided with an installation groove corresponding to the installation position of the speaker unit 20, the speaker unit 20 is clamped in the installation groove, and the sheet-shaped sound absorption and isolation component 40 covers the top of the installation groove, and the sound absorption particles are isolated by the side wall of the installation groove and the sound absorption and isolation component 40, and the sound absorption and isolation component 40 is fixed on the back surface of the speaker unit 20 by bonding.

[0056] According to an embodiment of the present invention, as Figures 4 to 6 shown, the outer shell is provided with a filling hole 12 communicating with the filling area 33, and the outside of the filling hole 12 is covered with a breathable mesh cloth 13, and the sound absorption particles can be filled into the filling area 33 through the filling hole 12.

[0057] Specifically, the filling hole 12 is opened on the lower cover body 11 and is disposed opposite to the filling area 33 for communicating the filling area 33 with the outside. After the upper cover body 10 and the lower cover body 11 are closed together and the sound absorption and isolation component 40 is fixed, sound absorption particles are filled into the filling area 33 through the filling hole 12. After the filling is completed, the filling hole 12 is blocked by the breathable mesh cloth 13 to prevent the leakage of the sound absorption particles.

[0058] According to an embodiment of the present invention, the thickness of the sound absorption and isolation component 40 is 0.1 mm - 0.2 mm. The density of the sound absorption and isolation component 40 is 0.3 g / cm3 -0.5 g / cm 3 ; the porosity of the sound-absorbing and isolating component 40 is 60%-90%.

[0059] Embodiment 2:

[0060] On the other hand, the present utility model further provides an electronic device, and the electronic device includes a speaker module as described in Embodiment 1. The electronic device can be a device such as a mobile phone, a tablet computer, a computer, an earphone, etc. that is provided with a speaker for external sound playback.

[0061] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A loudspeaker module, characterized in that, Comprising: A housing, within which a sound cavity is formed; A speaker unit (20) housed within the housing, the diaphragm of the speaker unit (20) separating the sound cavity into a front sound cavity (30) and a rear sound cavity (31); Sound-absorbing particles, filling at least part of the space within the rear sound cavity (31); A sound-absorbing and isolating component (40) capable of improving the acoustic performance of the rear sound cavity (31), the sound-absorbing and isolating component (40) being disposed within the rear sound cavity (31) for isolating the speaker unit (20) and the sound-absorbing particles, and the sound-absorbing and isolating component (40) having a three-dimensional pore structure.

2. The loudspeaker module according to claim 1, wherein The sound-absorbing and isolating component (40) divides the rear sound cavity (31) into a filling area (33) and a non-filling area (34), the sound-absorbing particles being located within the filling area (33), and the speaker unit (20) being located within the non-filling area (34).

3. The loudspeaker module according to claim 2, wherein A card slot (41) is provided on the inner wall of the housing at a position corresponding to the sound-absorbing and isolating component (40), and the sound-absorbing and isolating component (40) is snapped into the card slot (41).

4. The loudspeaker module according to claim 2, characterized in that, The sound-absorbing and isolating component (40) is fixed to the inner wall of the housing by means of adhesion.

5. The loudspeaker module according to any one of claims 2-4, characterized in that, A filling hole (12) communicating with the filling area (33) is provided on the housing, and a breathable mesh cloth (13) covers the outside of the filling hole (12), and the sound-absorbing particles can be filled into the filling area (33) through the filling hole (12).

6. The loudspeaker module according to claim 1, wherein The sound-absorbing and isolating component (40) is disposed on the back surface of the speaker unit (20) facing the rear sound cavity (31), and the entire rear sound cavity (31) forms a filling area (33), and the sound-absorbing particles are located within the filling area (33).

7. The loudspeaker module according to claim 6, wherein The sound-absorbing and isolating component (40) is fixed to the back surface of the speaker unit (20) by means of adhesion.

8. The loudspeaker module according to claim 6 or 7, characterized in that, A filling hole (12) communicating with the filling area (33) is provided on the housing, and a breathable mesh cloth (13) covers the outside of the filling hole (12), and the sound-absorbing particles can be filled into the filling area (33) through the filling hole (12).

9. The loudspeaker module according to claim 1, wherein The thickness of the sound-absorbing and isolating component (40) is 0.1 mm - 0.2 mm.

10. An electronic device, characterized in that, The electronic device includes the speaker module according to any one of claims 1 - 9.

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