Back adhesive fixing structure of acoustic material in loudspeaker and loudspeaker

Abstract

The utility model provides a back glue fixing structure of an acoustic material in a loudspeaker and the loudspeaker, the back glue fixing structure is used for fixing an acoustic reinforcing material piece in a sound cavity formed in a shell of the loudspeaker, and the back glue fixing structure comprises a back glue connecting part, the back glue connecting part is arranged on the acoustic reinforcing material piece and faces the bonding surface of the inner side wall of the acoustic cavity, and the back glue connecting part covers a part of the bonding surface, so that at least part of the bonding surface is in direct contact with air. According to the utility model, the problem that the acoustic performance becomes poor due to the fact that the acoustic material in the existing loudspeaker adopts a whole-surface back glue bonding mode can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a back glue fixing structure of acoustic materials in a loudspeaker and a loudspeaker capable of optimizing the performance of the acoustic materials. Background Art

[0002] As consumer electronics continue to develop, the pursuit of thinner and smaller electronic devices is gradually increasing, which poses a challenge to internal speaker components.

[0003] Due to the constraints of the speaker's appearance and the requirements for acoustic performance, designers usually use acoustic enhancement materials in speaker components to improve the performance of the speaker. In addition to directly using granular acoustic materials, other forms of acoustic materials are also used, such as sheet acoustic materials, block acoustic materials, or individually packaged granular acoustic packages.

[0004] Sheet acoustic materials, block acoustic materials and acoustic packages, which are integrally formed acoustic materials, are usually fixed in the cavity of the speaker BOX by means of adhesive backing. Usually, almost the entire bonding surface of the sheet acoustic materials, block acoustic materials and acoustic packages is covered with adhesive backing to fix the acoustic materials in the speaker BOX. However, since the entire surface of the adhesive backing partially blocks the contact between the acoustic material and the air, the performance of the acoustic material cannot be fully exerted, and the performance will be worse than that without adhesive backing.

[0005] At the same time, if the thickness of formed acoustic materials such as sheet acoustic materials, block acoustic materials, and acoustic bags exceeds a certain level, if they are fixed by adhesive bonding on the entire surface, air contact and exchange only through the top and sides of the acoustic material will reduce the effect of the original acoustic material. Utility Model Content

[0006] The utility model aims to provide a back adhesive fixing structure of acoustic materials in a speaker and a speaker, so as to solve the problem of poor acoustic performance caused by the whole-surface adhesive bonding method of acoustic materials in the current speaker.

[0007] On the one hand, the utility model provides a back glue fixing structure of acoustic material in a speaker, which is used to fix the acoustic enhancement material piece in the sound cavity formed inside the shell of the speaker, the back glue fixing structure includes a back glue connecting portion, the back glue connecting portion is arranged on the adhesive surface of the acoustic enhancement material piece and faces the inner wall direction of the sound cavity, the back glue connecting portion covers a part of the adhesive surface so that at least part of the adhesive surface is directly in contact with the air.

[0008] In a preferred embodiment of the present invention, the adhesive surface includes a central adhesive area and an edge gap area, the edge gap area is arranged around the circumferential outside of the central adhesive area, and the adhesive connection portion is arranged in the central adhesive area.

[0009] In a preferred embodiment of the present invention, the outer contour of the central adhesive area is parallel to the outer contour of the bonding surface.

[0010] In a preferred embodiment of the present invention, the central adhesive region has at least one adhesive gap where the adhesive connection portion is not provided, and one end of the adhesive gap is connected to the edge gap region.

[0011] In a preferred embodiment of the present invention, the central adhesive zone includes a plurality of adhesive sub-zones, gap channels without the adhesive connecting portion are formed between the plurality of adhesive sub-zones, and the gap channels are connected to the edge gap zone.

[0012] In a preferred embodiment of the present invention, each of the adhesive sub-areas has at least one adhesive gap where the adhesive connecting portion is not provided, and one end of the adhesive gap is connected to the edge gap area or the gap channel.

[0013] In a preferred embodiment of the present invention, the adhesive surface includes a plurality of adhesive sub-areas, gap channels communicating with the acoustic cavity are formed between the plurality of adhesive sub-areas, and the adhesive connection portion is arranged in the plurality of adhesive sub-areas.

[0014] In a preferred embodiment of the present invention, each of the adhesive sub-areas has at least one adhesive gap where the adhesive connecting portion is not provided, and one end of the adhesive gap is connected to the gap channel or the acoustic cavity.

[0015] In a preferred embodiment of the present invention, the adhesive surface has at least one adhesive gap where the adhesive connection portion is not provided, and one end of the adhesive gap is communicated with the acoustic cavity.

[0016] On the other hand, the utility model also provides a speaker, which has a shell and a speaker unit fixed on the shell, the shell and the speaker unit are arranged to form a sound cavity, and an acoustic reinforcement material piece is connected to part of the inner wall of the sound cavity through the adhesive fixing structure as described above.

[0017] The adhesive fixing structure of the acoustic material in the loudspeaker of the utility model has the following characteristics and advantages compared with the prior art:

[0018] By optimizing the design of the adhesive backing shape of the bonding bottom surface of the acoustic enhancement material piece, the air can contact the acoustic material from the bottom surface in addition to the top and side surfaces. This not only allows the bottom portion of the acoustic enhancement material piece to be utilized, but also allows the airflow to more easily reach the center area of ​​the acoustic material, thereby improving the acoustic performance of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0021] Figure 1 This is a schematic diagram of the structure of the loudspeaker described in the utility model;

[0022] Figure 2 It is a schematic diagram of the adhesive fixing structure of the acoustic enhancement material piece in the prior art;

[0023] Figure 3 This is a structural schematic diagram of the first embodiment of the adhesive fixing structure of the utility model;

[0024] Figure 4 This is another structural schematic diagram of the first embodiment of the adhesive fixing structure of the utility model;

[0025] Figure 5 This is a structural schematic diagram of a second embodiment of the adhesive fixing structure of the utility model;

[0026] Figure 6 This is a structural schematic diagram of a third embodiment of the adhesive fixing structure of the utility model;

[0027] Figure 7 It is another structural schematic diagram of the third embodiment of the adhesive fixing structure of the utility model;

[0028] Figure 8 This is a structural schematic diagram of a fourth embodiment of the adhesive fixing structure of the utility model;

[0029] Fig. 9 This is another structural schematic diagram of the fourth embodiment of the adhesive fixing structure of the utility model;

[0030] Fig.10 This is a structural schematic diagram of a fifth embodiment of the adhesive fixing structure of the utility model;

[0031] Fig.11 This is a structural schematic diagram of a sixth embodiment of the adhesive fixing structure of the utility model;

[0032] Fig.12 It is a structural schematic diagram of the seventh embodiment of the adhesive fixing structure of the utility model.

[0033] Description of reference numerals:

[0034] 10. Speaker; 11. Shell; 12. Speaker unit; 13. Sound cavity; 14. Acoustic reinforcement material; 15. Adhesive;

[0035] 20. Adhesive surface; 21. Central adhesive area; 22. Edge gap area; 23. Adhesive gap; 24. Adhesive sub-area; 25. Gap channel. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0037] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] Implementation method 1:

[0040] like Figures 1 to 12 As shown, the utility model provides a back glue fixing structure of the acoustic material in a speaker, which is used to fix the acoustic enhancement material piece 14 in the sound cavity 13 formed inside the shell 11 of the speaker 10, and the back glue fixing structure includes a back glue connecting portion, which is arranged on the adhesive surface of the acoustic enhancement material piece and facing the inner wall direction of the sound cavity, and the back glue connecting portion covers a part of the adhesive surface so that at least part of the adhesive surface is directly in contact with the air.

[0041] The adhesive fixing structure described in the utility model is used to fix the acoustic enhancement material piece 14 in the loudspeaker 10 , and is particularly suitable for bonding and fixing the acoustic enhancement piece in the micro loudspeaker 10 .

[0042] The adhesive fixing structure described in the present invention optimizes the adhesive shape of the bonding bottom surface (adhesive surface 20) of the acoustic enhancement material piece 14 so that air can contact the acoustic material from the bottom surface in addition to the top and side surfaces, so that the bottom portion of the acoustic enhancement material piece 14 can be utilized to play a role, thereby improving the acoustic performance of the speaker 10, reducing the resonance frequency (F0) of the speaker 10, and improving the low-frequency response of the speaker 10 (SPL within 200Hz~500Hz).

[0043] The acoustic enhancement material piece 14 described in the present invention is a sheet-shaped acoustic enhancement material piece, a block-shaped acoustic enhancement material piece, or a separately packaged granular acoustic package, etc., which is a relatively mature technology in the prior art, and therefore the specific material and structure of the acoustic enhancement material piece 14 will not be further described.

[0044] First, if Figure 2 As shown, it is a method of fixing the adhesive backing 15 of the acoustic enhancement material piece 14 in the prior art, and the adhesive backing 15 is coated on the entire bonding surface 20 of the acoustic enhancement material piece 14 to form an adhesive backing connection portion, and then the acoustic enhancement material piece 14 is bonded to the inner wall of the sound cavity 13 through the bonding surface 20 coated with the adhesive backing 15; however, the above method will result in only the top surface and side surface of the acoustic enhancement material piece 14 being in contact and exchange with the air in the sound cavity 13, while the bottom surface of the acoustic enhancement material piece 14 cannot be connected to the air in the sound cavity 13, so that the performance of the acoustic enhancement material piece 14 cannot be fully realized.

[0045] Therefore, the utility model proposes an optimized adhesive fixing structure of the acoustic material in the speaker, such as Figures 3 to 12As shown, when the acoustic enhancement material piece 14 is bonded and fixed, the adhesive 15 is only coated on a partial area of ​​the bonding surface 20 of the acoustic enhancement material piece 14 to form an adhesive connection portion. After the acoustic enhancement material piece 14 is bonded and fixed, a channel (gap) that is not filled with the adhesive connection portion (the adhesive 15 is not coated) is formed between the bonding surface 20 and the inner wall of the sound cavity 13. The air in the sound cavity 13 can enter the channel (gap) and then contact the bottom surface of the acoustic enhancement material piece 14, so that the bottom portion of the acoustic enhancement material piece 14 can be utilized to play a role, thereby improving the acoustic performance of the speaker 10.

[0046] The specific implementation of the adhesive fixing structure of the acoustic material in the speaker of the utility model will be described in detail below.

[0047] According to one embodiment of the present utility model, Figure 3 and Figure 4 As shown, the bonding surface 20 includes a central adhesive region 21 and an edge gap region 22 . The edge gap region 22 is arranged on the circumferential outer side of the central adhesive region 21 . The central adhesive region 21 is coated with adhesive 15 to form an adhesive connection portion.

[0048] Specifically, in the present embodiment, the adhesive backing 15 is only coated on the central area of ​​the bonding surface 20 to form a central adhesive backing area 21, while the adhesive backing 15 is not coated on the edge area of ​​the bonding surface 20 to form an edge gap area 22; after the acoustic enhancement material piece 14 is bonded and fixed, a gap connected to the acoustic cavity 13 is formed between the edge gap area 22 on the bonding surface 20 and the inner wall surface of the acoustic cavity 13, and the air in the acoustic cavity 13 can enter the gap and then contact the bottom surface of the acoustic enhancement material piece 14, so that the edge gap area 22 at the bottom of the acoustic enhancement material piece 14 can be utilized to play a role.

[0049] Preferably, the outer contour of the central adhesive area 21 is parallel to the outer contour of the bonding surface 20; in this embodiment, the shape of the central adhesive area 21 coated with the adhesive 15 matches the shape of the entire bonding surface 20, that is, the outer contours of the two are parallel. The central adhesive area 21 of this shape makes the adhesive 15 evenly distributed in the circumferential direction of the acoustic enhancement material piece 14, and the acoustic enhancement material piece 14 is stably bonded to the inner wall of the acoustic cavity 13, avoiding the problem of a weak bonding structure caused by uneven coating of the adhesive 15.

[0050] Of course, in other embodiments of the present invention, the shape of the central adhesive area 21 can also be set to other shapes, as long as it is ensured that the acoustic enhancement material piece 14 can be firmly bonded to the inner wall of the acoustic cavity 13. Figure 4 As shown, in this embodiment, the central adhesive area 21 is a cross-shaped area.

[0051] According to one embodiment of the present utility model, Figure 5 As shown, at least one adhesive gap 23 is provided on the central adhesive area 21, one end of the adhesive gap 23 is connected to the edge gap area 22, and the adhesive gap 23 is not coated with adhesive 15. By providing the adhesive gap 23, the connection area between the bottom of the acoustic enhancement material piece 14 and the sound cavity 13 is further enhanced, thereby further improving the effect of the acoustic enhancement material piece 14.

[0052] Specifically, in the present embodiment, the adhesive gap 23 is a narrow channel formed in the central adhesive area 21 and not coated with the adhesive 15, one end of the narrow channel is located in the central adhesive area 21, and the other end extends to the edge of the central adhesive area 21 and communicates with the edge gap area 22. The adhesive gap 23 can be set to various shapes according to actual needs, such as a straight line, an S-shaped curve, or a Z-shaped curve.

[0053] After the acoustic enhancement material piece 14 is bonded and fixed, the air in the acoustic cavity 13 can enter the gap formed between the edge gap area 22 and the inner wall of the acoustic cavity 13, and can also enter the narrow channel (adhesive gap 23) through the gap, which further increases the contact area between the bottom surface of the acoustic enhancement material piece 14 and the air in the acoustic cavity 13, thereby further improving the acoustic performance of the speaker 10. Of course, in order to ensure the bonding firmness of the acoustic enhancement material piece 14, the width and number of the adhesive gaps 23 set in the central adhesive area 21 should not be too large.

[0054] According to one embodiment of the present utility model, Figure 6 and Figure 7 As shown, the central adhesive area 21 includes a plurality of adhesive sub-areas 24, and a gap channel 25 connected to the edge gap area 22 is formed between the plurality of adhesive sub-areas 24, and the adhesive 15 is not coated in the gap channel 25. By providing the gap channel 25 formed between the adhesive sub-areas 24, the connection area between the bottom of the acoustic enhancement material piece 14 and the acoustic cavity 13 is further enhanced, thereby further improving the effect of the acoustic enhancement material piece 14.

[0055] Specifically, Figure 6 As shown, in this embodiment, the central adhesive area 21 is divided into four adhesive sub-areas 24 arranged in a matrix, and a "cross"-shaped gap channel 25 is formed between the four adhesive sub-areas 24. The end of the gap channel 25 extends to the edge of the central adhesive area 21 and is connected to the edge gap area 22. Figure 7As shown, in this embodiment, the central adhesive area 21 is divided into two adjacent adhesive sub-areas 24, and a long strip gap channel 25 is formed between the two adhesive sub-areas 24. The two ends of the gap channel 25 extend to the edge of the central adhesive area 21 and are connected to the edge gap area 22. In other embodiments of the utility model, the distribution of each adhesive sub-area 24 can be determined according to the shape of the adhesive surface 20 or actual needs, and is not limited to the above structure.

[0056] In this embodiment, the adhesive sub-area 24 is coated with adhesive 15 to form an adhesive connection portion, and the edge gap area 22 and the gap channel 25 are not coated with adhesive 15. After the acoustic enhancement material piece 14 is bonded and fixed, the air in the sound cavity 13 can enter the gap formed between the edge gap area 22 and the inner wall of the sound cavity 13, and can also enter the above-mentioned gap channel 25 through the gap, that is, the contact area between the bottom surface of the acoustic enhancement material piece 14 and the air in the sound cavity 13 is further increased, thereby further improving the acoustic performance of the speaker 10.

[0057] Further, such as Figure 8 and Fig. 9 As shown, at least one adhesive gap 23 is provided on each adhesive sub-area 24, one end of the adhesive gap 23 is connected to the edge gap area 22 or the gap channel 25, and the adhesive gap 23 is not coated with adhesive 15. By providing a corresponding adhesive gap 23 in each adhesive sub-area 24, the connection area between the bottom of the acoustic enhancement material piece 14 and the sound cavity 13 is further increased, thereby further improving the effect of the acoustic enhancement material piece 14.

[0058] The structure and setting method of the adhesive gap 23 are basically the same as the adhesive gap 23 described above, and will not be described here in detail. In this embodiment, the adhesive sub-area 24 is coated with adhesive 15 except for the adhesive gap 23, and the edge gap area 22, the gap channel 25 and the adhesive gap 23 are not coated with adhesive 15; after the acoustic enhancement material piece 14 is bonded and fixed, the air in the sound cavity 13 can enter the gap formed between the edge gap area 22 and the inner wall of the sound cavity 13, and can enter the gap channel 25 and the adhesive gap 23 through the gap, that is, the contact area between the bottom surface of the acoustic enhancement material piece 14 and the air in the sound cavity 13 is further increased, thereby further improving the acoustic performance of the speaker 10.

[0059] According to one embodiment of the present utility model, Fig.10 As shown, the bonding surface 20 includes a plurality of adhesive sub-areas 24 , gap channels 25 communicating with the acoustic cavity 13 are formed between the plurality of adhesive sub-areas 24 , and the plurality of adhesive sub-areas 24 are coated with adhesive 15 to form adhesive connecting portions.

[0060] In this embodiment, in order to avoid the problem of loose bonding between the acoustic enhancement material piece 14 and the inner wall of the sound cavity 13, the edge gap area 22 where the adhesive 15 is not coated is not divided at the edge position of the bonding surface 20, and the entire bonding surface 20 is directly divided into a plurality of adhesive sub-areas 24. The adhesive sub-areas 24 and the gap channels 25 formed are basically the same as the adhesive sub-areas 24 described above, and will not be repeated here.

[0061] In this embodiment, the bonding surface 20 except the gap channel 25 is coated with the adhesive 15 to form the adhesive connection portion, and the gap channel 25 is not coated with the adhesive 15; after the acoustic enhancement material piece 14 is bonded and fixed, the air in the sound cavity 13 can enter the gap channel 25 and then contact the bottom surface of the acoustic enhancement material piece 14, so that part of the bottom area of ​​the acoustic enhancement material piece 14 can be utilized to play a role, thereby improving the acoustic performance of the speaker 10.

[0062] In order to further improve the acoustic performance of the speaker 10, further improvements are made on the basis of the above implementation, such as Fig.11 As shown, each adhesive sub-area 24 is provided with at least one adhesive gap 23 , one end of the adhesive gap 23 is connected to the gap channel 25 or the acoustic cavity 13 , and the adhesive gap 23 is not coated with adhesive 15 .

[0063] The structure and setting method of the adhesive gap 23 are basically the same as the adhesive gap 23 described above, and will not be described here. In this embodiment, the adhesive surface 20 is coated with adhesive 15 to form an adhesive connection portion except for the gap channel 25 and the adhesive gap 23, and the gap channel 25 and the adhesive gap 23 are not coated with adhesive 15; after the acoustic enhancement material piece 14 is bonded and fixed, the air in the sound cavity 13 can enter the gap channel 25 and the adhesive gap 23, or enter the adhesive gap 23 through the gap channel 25, that is, the contact area between the bottom surface of the acoustic enhancement material piece 14 and the air in the sound cavity 13 is further increased, thereby further improving the acoustic performance of the speaker 10.

[0064] According to one embodiment of the present utility model, Fig.12 As shown, at least one adhesive gap 23 is provided on the bonding surface 20 , one end of the adhesive gap 23 is connected to the acoustic cavity 13 , and the adhesive gap 23 is not coated with adhesive 15 .

[0065] In this embodiment, in order to avoid the problem of loose bonding between the acoustic enhancement material piece 14 and the inner wall of the sound cavity 13, the edge gap area 22 where the adhesive 15 is not coated is not divided at the edge position of the bonding surface 20, and a plurality of adhesive gaps 23 are directly set on the bonding surface 20. The structure and setting method of the adhesive gaps 23 are basically the same as the adhesive gaps 23 described above, and will not be repeated here.

[0066] In this embodiment, the adhesive surface 20 is coated with adhesive 15 to form an adhesive connection portion except for the adhesive gap 23, and the adhesive gap 23 is not coated with adhesive 15; after the acoustic enhancement material piece 14 is bonded and fixed, the air in the sound cavity 13 can enter the adhesive gap 23 and then contact the bottom surface of the acoustic enhancement material piece 14, so that part of the bottom area of ​​the acoustic enhancement material piece 14 can be utilized to play a role, thereby improving the acoustic performance of the speaker 10.

[0067] Implementation method 2:

[0068] like Figure 1 As shown, the utility model also provides a speaker 10, which has a shell 11 and a speaker unit 12 fixed on the shell 11, the shell 11 and the speaker unit 12 surround a sound cavity 13, and an acoustic reinforcement material piece 14 is bonded to a part of the inner wall of the sound cavity 13 through the adhesive fixing structure as described in the first embodiment.

[0069] In the structure of the loudspeaker 10 described in the present invention, the air in the sound cavity 13 can contact the acoustic material from the top and side surfaces of the acoustic enhancement material piece 14 as well as from its bottom surface, so that the bottom portion of the acoustic enhancement material piece 14 can be utilized and play a role, and the acoustic performance of the loudspeaker 10 is better.

[0070] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific embodiment of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. An adhesive fixing structure for acoustic material in a speaker, which is used to fix an acoustic enhancement material piece in a sound cavity formed inside a speaker housing, characterized in that: The adhesive fixing structure includes an adhesive connecting portion, which is arranged on the adhesive surface of the acoustic enhancement material piece and facing the inner wall of the sound cavity. The adhesive connecting portion covers a portion of the adhesive surface so that at least part of the adhesive surface is directly in contact with the air.

2. The adhesive fixing structure of the acoustic material in the speaker according to claim 1, characterized in that: The adhesive surface comprises a central adhesive area and an edge gap area, the edge gap area is arranged around the circumferential outer side of the central adhesive area, and the adhesive connection portion is arranged in the central adhesive area.

3. The adhesive fixing structure of the acoustic material in the speaker according to claim 2, characterized in that: The outer contour of the central adhesive backing area is parallel to the outer contour of the bonding surface.

4. The adhesive fixing structure of the acoustic material in the speaker according to claim 2, characterized in that: The central adhesive region has at least one adhesive gap where the adhesive connection portion is not provided, and one end of the adhesive gap is connected to the edge gap region.

5. The adhesive fixing structure of acoustic material in a speaker according to claim 2, characterized in that: The central adhesive zone includes a plurality of adhesive sub-zones, gap channels without the adhesive connection portion are formed between the plurality of adhesive sub-zones, and the gap channels are connected to the edge gap zone.

6. The adhesive fixing structure of the acoustic material in the speaker according to claim 5, characterized in that: Each of the adhesive sub-areas has at least one adhesive gap where the adhesive connection portion is not provided, and one end of the adhesive gap is connected to the edge gap area or the gap channel.

7. The adhesive fixing structure of acoustic material in a loudspeaker according to claim 1, characterized in that: The adhesive surface includes a plurality of adhesive sub-areas, gap channels communicating with the acoustic cavity are formed between the plurality of adhesive sub-areas, and the adhesive connection parts are arranged in the plurality of adhesive sub-areas.

8. The adhesive fixing structure of the acoustic material in the speaker according to claim 7, characterized in that: Each of the adhesive sub-areas has at least one adhesive gap where the adhesive connection portion is not provided, and one end of the adhesive gap is communicated with the gap channel or the sound cavity.

9. The adhesive fixing structure of acoustic material in a loudspeaker according to claim 1, characterized in that: The adhesive surface is provided with at least one adhesive gap where the adhesive connection portion is not provided, and one end of the adhesive gap is communicated with the acoustic cavity.

10. A loudspeaker, characterized in that: The speaker comprises a shell and a speaker unit fixed on the shell, the shell and the speaker unit are arranged to form a sound cavity, and an acoustic reinforcement material piece is connected to part of the inner wall of the sound cavity through the adhesive fixing structure described in any one of claims 1-9.

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