Simple waterproof sound transmission structure

By designing a simple waterproof and sound-permeable structure inside the battery, using the combination of a waterproof and sound-permeable film and sealant, the problem of the inability to expose the sound of the buzzer inside the battery is solved, and the effect of improving the waterproof effect of the battery and improving safety is achieved.

CN222995096UActive Publication Date: 2025-06-17广东汇创新能源有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421359696.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-14
Publication Date
2025-06-17
Estimated Expiration
2034-06-14

AI Technical Summary

Technical Problem

The current waterproof structure of the buzzer installed inside the battery is poor, and water vapor is easy to enter, resulting in the buzzer's sound being unable to be revealed or the sound is small.

Method used

A simple waterproof and sound-permeable structure is designed, including an upper cover, a protrusion, accommodating cavity, a waterproof and sound-permeable membrane and a buzzer. By providing a protrusion and a receiving cavity on the inside of the upper cover, and installing a buzzer in the receiving cavity to fit the waterproof and sound-resistant membrane, combining the design of multiple through holes and sealant, the fixing and sealing of the buzzer is achieved.

Benefits of technology

This structure allows the buzzer to achieve sound transmission and waterproofing through a waterproof and sound-permeable membrane, improve the waterproof effect of the battery, and maximize the safety of the battery at a lower cost.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222995096U_ABST
    Figure CN222995096U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of buzzers, in particular to a simple waterproof sound transmission structure, which comprises an upper cover, a convex part is arranged on the inner side of the upper cover, a containing cavity is formed in the convex part, a buzzer is mounted in the containing cavity, a waterproof sound transmission film is arranged between the buzzer and the inner wall of the containing cavity, and the buzzer is attached to the waterproof sound transmission film. The upper cover is provided with at least two through holes, the through holes are communicated with the containing cavity, and sealant is contained in the containing cavity and adheres to the buzzer. According to the application, the accommodating cavity of the convex part is communicated with the plurality of through holes, the buzzer is placed in the accommodating cavity after being attached and fixed to the waterproof sound-transmitting film, and then the buzzer and the waterproof sound-transmitting film are adhered through the sealant, so that the buzzer is fixed and sealed, the interior of the accommodating cavity becomes a closed space, and the structure enables the buzzer to realize sound transmission and water resistance through the waterproof sound-transmitting film; the waterproof effect of the battery is improved, and the safety of the battery is improved to the maximum extent at low cost.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of buzzers, in particular to a simple waterproof and sound-permeable structure. Background Art

[0002] With the advancement of science and technology, batteries have developed into various forms and play an important role in all aspects of modern social life. They have simple structures, are easy to carry, and are easy to charge and discharge. They are not easily affected by external climate and temperature, and have stable and reliable performance.

[0003] However, as the market demand for batteries becomes higher and higher, the requirements for waterproof function become more and more stringent. In actual applications, in order to help users better manage and use batteries and ensure the safe use of batteries, a buzzer is often installed inside the battery to serve as an alarm, signal indication and reminder.

[0004] Based on this, the current waterproof structure of the buzzer installed inside the battery has a poor effect, and water vapor can easily enter the battery. Therefore, in order to improve the waterproof effect, the waterproof structure is set to be closed, resulting in the sound of the buzzer being unable to penetrate, or being blocked and causing the sound to be smaller. Utility Model Content

[0005] The purpose of the utility model is to provide a simple waterproof and sound-permeable structure, aiming at the deficiencies of the above-mentioned prior art and to solve the technical problem that the sound of the buzzer inside the current battery cannot be transmitted.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A simple waterproof and sound-permeable structure comprises an upper cover, a convex portion is arranged on the inner side of the upper cover, a receiving cavity is opened in the convex portion, a buzzer is installed in the receiving cavity, a waterproof and sound-permeable membrane is arranged between the buzzer and the inner wall of the receiving cavity, the buzzer and the waterproof and sound-permeable membrane are fitted, at least two through holes are opened in the upper cover, the through holes are connected with the receiving cavity, the receiving cavity contains sealant, and the sealant is adhered to the buzzer.

[0008] The utility model is further configured as follows: the accommodating cavity comprises a first sound cavity, the first sound cavity is arranged between the inner wall of the upper cover and the waterproof sound-permeable membrane, and the first sound cavity is communicated with the through hole.

[0009] The utility model is further configured as follows: the accommodating chamber also includes a placing chamber, the placing chamber is connected to the first sounding chamber, and the waterproof sound-permeable membrane and the buzzer are placed in the placing chamber in sequence.

[0010] The utility model is further configured as follows: the diameter of the placement cavity is greater than the diameter of the first sound cavity, so that the outer edge of the waterproof sound-permeable membrane fits the inner wall of the placement cavity.

[0011] The utility model is further configured as follows: the accommodating cavity further comprises a sealing cavity, the sealing cavity is communicated with the placing cavity, and the sealant is accommodated in the sealing cavity.

[0012] The utility model is further configured that: the thickness of the buzzer is greater than the thickness of the placement cavity, so that the buzzer is partially accommodated in the sealed cavity.

[0013] The utility model is further configured as follows: a first groove is provided on the outer side of the upper cover corresponding to the convex portion, and the first groove is covered with a matching cover plate.

[0014] The utility model is further configured as follows: a second groove is provided on the upper cover in the first groove, and the second groove is communicated with the through hole.

[0015] The utility model is further configured as follows: the first groove, the second groove and the cover plate cooperate to form a second sound cavity.

[0016] The utility model is further configured as follows: an annular groove is provided on one side of the waterproof sound-permeable membrane so that a bulge is formed in the inner circle of the annular groove; a third groove is provided on one side of the buzzer, and the bulge is embedded in the third groove so that the waterproof sound-permeable membrane and the buzzer are fitted and fixed.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model includes an upper cover, a convex portion is provided on the inner side of the upper cover, a receiving cavity is provided in the convex portion, a buzzer is installed in the receiving cavity, a waterproof sound-permeable membrane is provided between the buzzer and the inner wall of the receiving cavity, the buzzer and the waterproof sound-permeable membrane are fitted, the upper cover is provided with at least two through holes, the through holes are connected to the receiving cavity, the receiving cavity contains a sealant, and the sealant is adhered to the buzzer. The present application is connected through the receiving cavity of the convex portion and a plurality of through holes, the buzzer is fitted and fixed to the waterproof sound-permeable membrane and placed in the receiving cavity, and then adhered by the sealant to achieve the fixation and sealing of the buzzer, so that the inside of the receiving cavity becomes a closed space, and the above structure enables the buzzer to achieve sound transmission and waterproofing through the waterproof sound-permeable membrane, improves the waterproof effect of the battery, and maximizes the safety of the battery at a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the upper cover in the utility model;

[0021] Figure 2This is a one-view diagram of the partial structure of the upper cover provided with a convex portion in the utility model;

[0022] Figure 3 It is a partial cross-sectional view of the utility model in which the upper cover is provided with a convex portion;

[0023] Figure 4 This is another perspective view of the partial structure of the upper cover provided with a convex portion in the utility model;

[0024] Figure 5 It is a schematic diagram of the overall structure of the waterproof and sound-permeable membrane in the utility model;

[0025] Figure 6 It is a schematic diagram of the overall structure of the buzzer in the utility model.

[0026] The reference numerals in the above drawings are as follows:

[0027] 1-upper cover, 11-convex part, 12-accommodating cavity, 13-through hole, 14-first cavity, 15-placing cavity, 16-sealing cavity, 17-sealant, 18-first groove, 19-second groove, 20-cover plate, 21-second cavity;

[0028] 3-buzzer, 31-third groove;

[0029] 4-waterproof sound-permeable membrane, 41-annular groove, 42-protrusion. DETAILED DESCRIPTION

[0030] In the description of this application, the term "at least two" refers to more than two (including two), and similarly, "plurality" refers to more than two (including two). The technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Terms such as "fit", "connected", "connected", and "adhesive" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In the description of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", and "outside" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0032] In order to more clearly understand the above-mentioned objectives, technical solutions and advantages of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application, so as to understand in detail how to solve the problems raised in the above-mentioned background technology.

[0033] Example

[0034] like Figures 1 to 6 As shown, a simple waterproof and sound-permeable structure includes an upper cover 1, a convex portion 11 is arranged on the inner side of the upper cover 1, a accommodating cavity 12 is opened in the convex portion 11, a buzzer 3 is installed in the accommodating cavity 12, a waterproof and sound-permeable membrane 4 is arranged between the buzzer 3 and the inner wall of the accommodating cavity 12, the buzzer 3 is fitted with the waterproof and sound-permeable membrane 4, the upper cover 1 is opened with at least two through holes 13, the through holes 13 are connected with the accommodating cavity 12, the accommodating cavity 12 contains a sealant 17, and the sealant 17 is adhered to the buzzer 3.

[0035] Specifically, including but not limited to, the upper cover 1 is a sealing plate of the battery, the protrusion 11 is arranged on the side of the upper cover 1 facing the inside of the battery, and the accommodating cavity 12 is opened from bottom to top along the protrusion 11 in the vertical direction until it is close to the top surface of the upper cover 1 but not through, the accommodating cavity 12 is provided with a stepped structure, and its diameter decreases from bottom to top, so that the diameter of part of the accommodating cavity 12 is larger than the diameter of the buzzer 3 to ensure that the buzzer 3 can be placed, one side of the waterproof sound-permeable membrane 4 is in contact with the top of the buzzer 3, and the other side of the waterproof sound-permeable membrane 4 is in contact with the inner wall of the accommodating cavity 12, and the through hole 13 is arranged in the accommodating cavity 12 part of the upper cover 1 corresponding to the protrusion 11, so that the through hole 13 The hole 13 is connected with the accommodating cavity 12. In the present embodiment, four through holes 13 are provided and are cylindrical. Of course, the specific number and structure can be set according to actual needs. After the assembled buzzer 3 and the waterproof sound-permeable membrane 4 are placed in the accommodating cavity 12, the sealant 17 is poured in the accommodating cavity 12. The sealant 17 can be respectively adhered to the buzzer 3 and the inner wall of the accommodating cavity 12, so that the buzzer 3 is fixed and sealed. At the same time, due to the gap between the buzzer 3 and the accommodating cavity 12, it is convenient to install the buzzer 3. Part of the sealant 17 will also enter the gap, so that the side wall of the buzzer is adhered to the inner wall of the accommodating cavity 12, further strengthening the fixation and sealing of the buzzer 3.

[0036] Through the above scheme, the accommodating cavity 12 and the multiple through holes 13 are connected, the buzzer 3 is placed in the accommodating cavity 12 after being fitted and fixed with the waterproof sound-permeable membrane 4, and then adhered by the sealant 17 to achieve the fixation and sealing of the buzzer 3, so that the interior of the accommodating cavity 12 becomes a closed space, so that the buzzer 3 can achieve sound transmission and waterproofing through the waterproof sound-permeable membrane 4, improve the waterproof effect of the battery, and maximize the safety of the battery at a lower cost.

[0037] As an improved specific implementation, the accommodating cavity 12 includes a first sound cavity 14 , which is arranged between the inner wall of the upper cover 1 and the waterproof sound-permeable membrane 4 , and the first sound cavity 14 is connected to the through hole 13 .

[0038] Specifically, including but not limited to, the waterproof sound-permeable membrane 4 is fitted with the inner wall of the upper cover 1 to form a first sound cavity 14, and the diameter of the first sound cavity 14 is smaller than the diameter of the waterproof sound-permeable membrane 4, so that the outer edge of the waterproof sound-permeable membrane 4 can fit with the inner wall of the partial placement cavity 15, and the first sound cavity 14 is arranged at the upper part of the accommodating cavity 12, thereby being connected with the through hole 13 set along the upper cover 1, so that the inside of the accommodating cavity 12 is connected with the outside.

[0039] Through the above scheme, the setting of the first sound chamber 14 can cooperate with the waterproof breathable membrane to complete the upper sealing, and on the other hand, it can also enable the sound emitted by the buzzer 3 to be transmitted to the greatest extent, reducing obstacles in the sound transmission process.

[0040] As an improved specific implementation, the accommodating chamber 12 further includes a placement chamber 15 , which is connected to the first sound chamber 14 , and the waterproof sound-permeable membrane 4 and the buzzer 3 are placed in the placement chamber 15 in sequence.

[0041] Specifically, including but not limited to, the placement cavity 15 is arranged below the first sound cavity 14, and the diameter of the placement cavity 15 is larger than the diameter of the first sound cavity 14, so that the outer edge of the waterproof sound-permeable membrane 4 fits the inner wall of the placement cavity 15, at this time, the first sound cavity 14 and the placement cavity 15 fit and communicate with each other up and down, and the diameter of the placement cavity 15 is larger than the diameter of the waterproof sound-permeable membrane 4 or the buzzer 3, so as to prevent the buzzer 3 and the waterproof sound-permeable membrane 4 from being stuck or damaged by friction with the upper cover 1 when placing the buzzer 3 and the waterproof sound-permeable membrane 4. Secondly, the waterproof sound-permeable membrane 4 and the buzzer 3 are placed in the placement cavity 15, which can So that the buzzer 3 and the inner wall of the placement cavity 15 form a clamping structure, thereby the waterproof sound-permeable membrane 4 can be tightly fixed thereon. Secondly, the diameter of the cavity is prevented from being larger than the first sound cavity 14, thereby generating a gap. The gap can also be filled with sealant 17, which can fix and seal the side wall of the buzzer 3 and the inner wall of the accommodating cavity 12, so that the buzzer 3 cannot shake. At this time, the waterproof sound-permeable membrane 4 can also prevent the buzzer 3 from shaking without moving its position, or reduce the friction between the waterproof sound-permeable membrane 4 and the buzzer 3, thereby ensuring the service life of the waterproof sound-permeable membrane 4.

[0042] Through the above scheme, the placement cavity 15 can accommodate the buzzer 3 and the waterproof sound-permeable membrane 4 on the one hand, and on the other hand, the sealant 17 can seal and fix the side wall of the buzzer 3 after being filled, further improving the fixing and sealing effect.

[0043] As an improved specific implementation, the accommodating cavity 12 further includes a sealing cavity 16 , the sealing cavity 16 is communicated with the placement cavity 15 , and the sealant 17 is accommodated in the sealing cavity 16 .

[0044] Specifically, including but not limited to, the diameter of the sealing cavity 16 is larger than the diameter of the placement cavity 15 and the two are connected. In addition, the sealing cavity 16 is also connected to the inside of the battery. When the waterproof sound-permeable membrane 4 and the buzzer 3 are to be installed, the placement cavity 15 can be entered through the sealing cavity 16. After the waterproof sound-permeable membrane 4 and the buzzer 3 are placed, the sealant 17 is poured into the sealing cavity 16. At this time, the thickness of the sealant 17 can exceed the bottom of the buzzer 3, that is, the sealant 17 can immerse the buzzer 3, thereby fully sealing and fixing the buzzer 3; in this embodiment, the bottom of the buzzer 3 is sealed by the sealant 17. Of course, in some other embodiments, the inner wall of the sealing cavity 16 can be provided with a threaded structure, and a fixed cover matching the sealing cavity 16 is provided. The fixed cover has a threaded structure matching the inner wall of the sealing cavity 16, which is convenient for disassembly and assembly when the buzzer 3 is replaced and maintained.

[0045] Through the above solution, the sealing cavity 16 can be arranged to cooperate with the placement cavity 15 to fix and seal the buzzer 3, and after filling with the sealant 17, the sealing performance of the buzzer 3 is guaranteed and shaking is prevented.

[0046] As an improved specific implementation, the thickness of the buzzer 3 is greater than the thickness of the placement cavity 15 , so that the buzzer 3 is partially accommodated in the sealing cavity 16 .

[0047] Specifically, including but not limited to, the thickness of the buzzer 3 is greater than the thickness of the placement cavity 15, so that the bottom part of the buzzer 3 can be inserted into the sealing cavity 16. Then, the bottom part of the buzzer 3 is a protrusion 42, and the sealing cavity 16 part is an annular groove. In this embodiment, the sealant 17 is immersed in the buzzer 3, that is, the thickness of the sealant 17 is greater than the thickness of the formed annular groove. This can increase the squeezing force of the buzzer 3. On the one hand, the buzzer 3 can be tightly squeezed against the waterproof sound-permeable membrane 4 to ensure the stability of the structure. On the other hand, it can also prevent the buzzer 3 from falling off or loosening. Of course, in some other embodiments, the sealant 17 can be filled into the annular groove, which not only ensures the stability of the buzzer 3, but also saves installation materials, thereby reducing production costs.

[0048] Through the above solution, the buzzer 3 is partially protruded downward and then inserted into the sealing cavity 16, and then the sealant 17 is poured in to fix and seal, thereby improving the stability of the structure.

[0049] As an improved specific implementation, a first groove 18 is provided on the outer side of the upper cover 1 corresponding to the convex portion 11 , and the first groove 18 is covered with a matching cover plate 20 .

[0050] Specifically, including but not limited to, the first groove 18 is a rectangular groove, the cover plate 20 is a rectangular plate matching the first groove 18, the thickness of the first groove 18 is the same as the thickness of the cover plate 20, so that when the cover plate 20 is closed, the top of the upper cover 1 is a straight plane, and at this time, a depression can be opened in the first groove 18, and a protrusion is set at a corresponding position on the bottom of the cover plate 20, and the protrusion is embedded in the depression to achieve the clamping and fixing of the cover plate 20. Of course, according to actual needs, the first groove and the cover plate 20 can be respectively provided with magnetic blocks with mutual attraction, and the cover plate 20 is fixed by the suction force of the magnetic blocks, so that the cover plate 20 can be disassembled at any time.

[0051] Through the above scheme, the cover plate 20 matches the first groove 18, and the cover plate 20 can cover the first groove 18, so that the upper cover 1 corresponding to the sound output position has a preliminary waterproof and dustproof effect, which can prevent a large amount of external dust and water vapor from entering the battery and causing damage to the internal components of the battery.

[0052] As an improved specific implementation, a second groove 19 is opened in the upper cover 1 inside the first groove 18 , and the second groove 19 is communicated with the through hole 13 .

[0053] Specifically, including but not limited to, the second groove 19 is a matching structure of an annular groove and a rectangular groove, the portion corresponding to the through hole 13 is set as an annular groove, and the connection parts with the inner wall of the upper cover 1 on both sides are set as rectangular grooves. At this time, the diameter of the annular groove 41 can be set according to the diameter of the waterproof sound-permeable membrane 4. In this way, when the number of through holes 13 is set according to actual needs, it will not be blocked by the upper cover 1 within the diameter range of the corresponding waterproof sound-permeable membrane 4. The second groove 19 connects the through hole 13 and the first groove 18. In this way, when the cover plate 20 is covered on the first groove 18, the upper cover 1 and the cover plate 20 cooperate to form a second sound cavity 21 with the second groove 19 as the space.

[0054] Through the above solution, the second groove 19 can form a second sound cavity 21 , so that the sound emitted by the buzzer 3 has enough space to be transmitted and is not directly blocked by the cover plate 20 .

[0055] As an improved specific implementation, a ring groove 41 is provided on one side of the waterproof sound-permeable membrane 4 so that a protrusion 42 is formed on the inner circle of the ring groove 41, and a third groove 31 is provided on one side of the buzzer 3, and the protrusion 42 is embedded in the third groove 31 so that the waterproof sound-permeable membrane 4 and the buzzer 3 are fit and fixed.

[0056] Specifically, including but not limited to, the protrusion 42 is set to a cylindrical structure, at this time, the protrusion 42 is protruding relative to the lower plane of the waterproof sound-permeable membrane 4, and a third groove 31 is opened at the top center of the buzzer 3 corresponding to the position of the protrusion 42 of the waterproof sound-permeable membrane 4. The third groove 31 is also set to a cylindrical structure. At this time, the diameter of the third groove 31 is smaller than the diameter of the protrusion 42, so that the protrusion 42 is easy to embed into the third groove 31, so as to realize the fitting and fixation of the waterproof sound-permeable membrane 4 and the buzzer 3.

[0057] Through the above scheme, the cooperation between the protrusion 42 and the third groove 31 makes the waterproof sound-permeable membrane 4 and the buzzer 3 fit tightly. The setting of the annular groove 41 can reduce the production materials of the waterproof sound-permeable membrane 4 while ensuring the waterproof and sound-permeable performance, thereby reducing the production cost.

[0058] The present application utilizes the waterproof and sound-permeable functions of the waterproof sound-permeable membrane 4, so that external water or dust cannot enter but sound can be transmitted. The waterproof sound-permeable membrane 4 is attached to the top surface of the buzzer 3 to complete the fixation, and then the assembled buzzer 3 and the waterproof sound-permeable membrane 4 are installed on the upper cover 1 of the battery, so that the waterproof sound-permeable membrane 4 is squeezed against the inner wall of the upper cover 1, and sealant 17 is applied to the bottom surface of the buzzer 3, so that the inside of the accommodating cavity 12 of the upper cover 1 becomes a closed space. In this way, when the buzzer 3 makes a sound, the sound can pass through the waterproof sound-permeable membrane 4, and the outside world can also hear the sound clearly. It can also effectively prevent external water from entering the buzzer 3 to avoid damage to the inside of the battery.

[0059] Finally, it should be noted that the above is only the preferred implementation of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A simple waterproof and sound-permeable structure, characterized in that: The invention comprises an upper cover, wherein a convex portion is arranged on the inner side of the upper cover, a receiving cavity is arranged in the convex portion, a buzzer is installed in the receiving cavity, a waterproof sound-permeable membrane is arranged between the buzzer and the inner wall of the receiving cavity, the buzzer is fitted with the waterproof sound-permeable membrane, the upper cover is provided with at least two through holes, the through holes are connected with the receiving cavity, the receiving cavity contains sealant, and the sealant is adhered to the buzzer.

2. A simple waterproof and sound-permeable structure according to claim 1, characterized in that: The accommodating cavity includes a first sound cavity, which is arranged between the inner wall of the upper cover and the waterproof sound-permeable membrane, and the first sound cavity is connected to the through hole.

3. A simple waterproof and sound-permeable structure according to claim 2, characterized in that: The accommodating chamber also includes a placement chamber, which is communicated with the first sound chamber, and the waterproof sound-permeable membrane and the buzzer are placed in the placement chamber in sequence.

4. A simple waterproof and sound-permeable structure according to claim 3, characterized in that: The diameter of the placement cavity is greater than the diameter of the first sound cavity, so that the outer edge of the waterproof sound-permeable membrane fits the inner wall of the placement cavity.

5. A simple waterproof and sound-permeable structure according to claim 4, characterized in that: The accommodating cavity further comprises a sealing cavity, the sealing cavity is communicated with the placing cavity, and the sealant is accommodated in the sealing cavity.

6. A simple waterproof and sound-permeable structure according to claim 5, characterized in that: The thickness of the buzzer is greater than the thickness of the placement cavity, so that the buzzer is partially accommodated in the sealed cavity.

7. A simple waterproof and sound-permeable structure according to claim 6, characterized in that: The upper cover is provided with a first groove on the outer side corresponding to the convex portion, and the first groove is covered with a matching cover plate.

8. A simple waterproof and sound-permeable structure according to claim 7, characterized in that: The upper cover in the first groove is provided with a second groove, and the second groove is communicated with the through hole.

9. A simple waterproof and sound-permeable structure according to claim 8, characterized in that: The first groove, the second groove and the cover plate cooperate to form a second sound cavity.

10. The simple waterproof and sound-permeable structure according to claim 1, characterized in that: A ring groove is provided on one side of the waterproof sound-permeable membrane so that a bulge is formed in the inner circle of the ring groove. A third groove is provided on one side of the buzzer, and the bulge is embedded in the third groove so that the waterproof sound-permeable membrane and the buzzer are fitted and fixed.