Sound hole waterproof structure

Abstract

A sound hole waterproof structure is applied to electronic equipment and comprises a sealing block and a waterproof sound transmission film. The electronic equipment is provided with a sound hole and a movable hole, and the movable hole is communicated with the sound hole and is opened outwards. The sealing block is arranged in the movable hole and is enclosed with the movable hole to form a sound channel communicated with the sound hole; the waterproof sound-transmitting film is mounted on the electronic equipment and closes the opening of the movable hole, and the waterproof sound-transmitting film is further fixedly connected with the sealing block; wherein the waterproof sound transmission film can deform or reset along with the change of water pressure so as to drive the sealing block to seal or open the sound hole; therefore, the sound hole can be blocked and the waterproof performance can be improved in the deepwater environment through the cooperative use of the waterproof sound-transmitting membrane and the sealing block, and the waterproof sound-transmitting membrane can be buffered and supported in the process that the sound hole is blocked by the sealing block, so that the deformation of the waterproof sound-transmitting membrane is delayed, and the service life of the waterproof sound-transmitting membrane is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of acoustic hole waterproofing technology, and in particular relates to an acoustic hole waterproofing structure. Background Technology

[0002] Waterproof acoustic membranes (also known as MIC mesh) are typically installed at the sound holes of electronic devices such as speakers and microphones to act as a barrier against dust, water, or other liquids. At the same time, they do not cause a significant decrease in the transmission, integrity, or quality of sound, allowing electronic devices to receive or play sound normally while also being waterproof.

[0003] However, the pressure resistance of waterproof and sound-permeable membranes is limited. Although they can withstand water pressure within a certain water depth range and prevent external liquids from entering electronic devices, if the electronic devices are in a deep water and high-pressure environment for a long time, the waterproof and sound-permeable membrane is prone to rapid deformation and enters an accelerated fatigue state, resulting in a decrease in waterproof performance and eventually rupture and failure. In view of this, it is necessary to design a sound-permeable waterproof structure to solve this problem. Utility Model Content

[0004] Technical problems to be solved

[0005] This invention provides a sound-perforated waterproof structure that can improve waterproof performance, delay deformation of the waterproof and sound-perforated membrane, and extend the service life of the waterproof and sound-perforated membrane.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A waterproof acoustic vent structure for use in electronic devices includes a sealing block and a waterproof and sound-permeable membrane. The electronic device has an acoustic vent and a movable vent, the movable vent connecting to the acoustic vent and opening outwards. The sealing block is placed within the movable vent and surrounds it to form a sound channel connecting to the acoustic vent. The waterproof and sound-permeable membrane is installed on the electronic device and closes the opening of the movable vent, and is also fixedly connected to the sealing block. The waterproof and sound-permeable membrane can deform or return to its original position with changes in water pressure, thereby causing the sealing block to block or open the acoustic vent.

[0009] Preferably, the sealing block can enter the sound hole and be press-fitted with the sound hole to seal the sound hole.

[0010] Preferably, the cross-sectional area of ​​the sealing block is larger than the cross-sectional area of ​​the acoustic hole, and the sealing block abuts against the bottom wall of the movable hole to block the acoustic hole.

[0011] Preferably, the cross-sections of the acoustic hole and the movable hole are both circular, the sealing block is cylindrical, and the waterproof and sound-permeable membrane, the sealing block, the movable hole, and the acoustic hole are designed coaxially.

[0012] Preferably, the sealing block is made of an elastic material.

[0013] Preferably, the sealing block is made of silicone.

[0014] Preferably, the electronic device is further provided with a groove, the groove being located at the opening of the movable hole and connected to the movable hole, and the waterproof and sound-permeable membrane being embedded in the groove.

[0015] Preferably, the waterproof and sound-permeable membrane is fixed to the groove by adhesive or by a snap-fit ​​structure.

[0016] Preferably, the edge of the movable hole opening is chamfered.

[0017] Preferably, the sound hole is a microphone receiving hole or a speaker playback hole of an electronic device.

[0018] (III) Beneficial Effects

[0019] This utility model provides a waterproof structure for sound holes. By designing a waterproof and sound-permeable membrane and a sealing block to work in conjunction with the movable hole and the sound hole, the sound hole can be opened on the water surface to allow for normal waterproofing and sound transmission, while the sound hole can be sealed in deep water environments, improving waterproof performance. At the same time, it can also delay the deformation of the waterproof and sound-permeable membrane, prevent premature fatigue damage, and extend the service life of the waterproof and sound-permeable membrane. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This diagram illustrates the usage state of the present invention. Figure 1 ;

[0022] Figure 2 It shows Figure 1 The main view;

[0023] Figure 3 It shows Figure 2 AA section view;

[0024] Figure 4 It shows Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5This diagram illustrates the usage state of the present invention. Figure 2 ;

[0026] Figure 6 It shows Figure 5 Right view

[0027] Figure 7 It shows Figure 6 BB cross-sectional view;

[0028] Figure 8 It shows Figure 7 Enlarged view of point B in the middle;

[0029] Figure 9 An exploded view of the overall structure of this utility model is shown.

[0030] In the diagram: 1 Electronic device, 11 Sound hole, 111 Microphone receiver hole, 112 Speaker playback hole, 12 Movable hole, 120 Sound channel, 13 Groove, 2 Sealing block, 3 Waterproof and sound-permeable membrane. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit this application. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.

[0032] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application.

[0033] See appendix Figure 1 -Appendix Figure 9A waterproof acoustic hole structure is used in an electronic device 1, comprising a sealing block 2 and a waterproof acoustic membrane 3. The electronic device 1 is provided with an acoustic hole 11 and a movable hole 12, the movable hole 12 being connected to the acoustic hole 11 and opening outward. The sealing block 2 is placed inside the movable hole 12 and surrounds each other to form a sound channel 120 connecting the acoustic hole 11. The waterproof acoustic membrane 3 is installed on the electronic device 1 and closes the opening of the movable hole 12, and the waterproof acoustic membrane 3 is also fixedly connected to the sealing block 2. The waterproof acoustic membrane 3 can deform or reset with changes in water pressure to drive the sealing block 2 to block or open the acoustic hole 11.

[0034] Specifically, when electronic device 1 is used on the water surface, the waterproof and sound-permeable membrane 3 is in a normal state. Electronic device 1 can be waterproofed normally through the waterproof and sound-permeable membrane 3, and can play or receive sound normally through the sound hole 11, the sound channel 120 and the waterproof and sound-permeable membrane 3.

[0035] When electronic device 1 is used underwater and the water depth reaches a certain level, the waterproof and sound-permeable membrane 3 deforms under water pressure, causing the sealing block 2 to move down and block the sound hole 11. This allows electronic device 1 to remain waterproof underwater, but it cannot transmit sound. During the process of sealing the sound hole 11, the sealing block 2 contacts the side wall of the sound hole 11 or the bottom wall of the movable hole 12 and generates a force. This force is then reflected by the sealing block 2 onto the waterproof and sound-permeable membrane 3, providing buffering and support for the membrane and thus delaying its deformation.

[0036] When the electronic device 1 returns to the water surface, the water pressure gradually decreases, the waterproof and sound-permeable membrane 3 automatically returns to its initial state and drives the sealing block 2 to move upward and open the sound hole 11, so that the sound hole 11 can continue to transmit sound normally through the waterproof and sound-permeable membrane 3.

[0037] In summary, this utility model uses a waterproof and sound-permeable membrane 3 and a sealing block 2 to work with the movable hole 12 and the sound hole 11. This allows the sound hole 11 to be opened on the water surface for normal waterproofing and sound transmission, while also sealing the sound hole 11 in deep water environments, thus improving waterproof performance. At the same time, it can also delay the deformation of the waterproof and sound-permeable membrane 3, prevent premature fatigue damage, and extend the service life of the waterproof and sound-permeable membrane 3.

[0038] It should be noted that electronic device 1 can be a mobile phone, tablet computer, or other similar products. There are various types of related electronic devices, and all of them belong to the prior art. Therefore, this utility model does not limit them, and the internal component structure is not described in detail, nor is any corresponding illustration provided. The waterproof and sound-permeable membrane 3 is usually made of a polymer film that has undergone hydrophobic modification. It has high elasticity, can deform under pressure, and has the ability to recover. Since it belongs to the prior art, it is not described in detail in this utility model.

[0039] See appendix Figure 1 -Appendix Figure 8There are various ways to seal the sound hole 11 with the sealing block 2. This utility model does not limit this method. For ease of understanding, the following examples are provided in this utility model:

[0040] Example 1: Not shown in the figure, the sealing block 2 can enter the sound hole 11 and be press-fitted with the sound hole 11 to block the sound hole 11.

[0041] Specifically, in this example, when the sealing block 2 blocks the sound hole 11, it will rub against the side wall of the sound hole 11 and generate resistance (force). The resistance is reflected by the sealing block 2 onto the waterproof sound-permeable membrane 3 to provide a buffer for the waterproof sound-permeable membrane 3, thereby delaying the deformation of the waterproof sound-permeable membrane 3. At the same time, the interference fit between the sealing block 2 and the sound hole 11 can also avoid the formation of gaps and ensure waterproof performance.

[0042] Example 2: As attached Figure 4 -Appendix Figure 8 As shown, the cross-sectional area of ​​the sealing block 2 is larger than the cross-sectional area of ​​the sound hole 11, and the sealing block 2 abuts against the bottom wall of the movable hole 12 to block the sound hole 11.

[0043] Specifically, in this example, the sealing block 2 blocks the sound hole 11 and abuts against the bottom wall of the movable hole 12. The bottom wall of the movable hole 12 provides support force (acting force) to the sealing block 2. The support force reacts through the sealing block 2 to the waterproof sound-permeable membrane 3, so as to provide buffer and support for the waterproof sound-permeable membrane 3, thereby delaying the deformation of the waterproof sound-permeable membrane 3. At the same time, the sealing block 2 has a certain height, so it can also limit the deformation range of the waterproof sound-permeable membrane 3, avoid its excessive deformation, and extend its service life.

[0044] It should be noted that, considering that Example 1 is prone to causing wear on the sealing block 2, and that during the process of deformation of the waterproof and sound-permeable membrane 3 causing the sealing block 2 to move, there is a possibility that the sealing block 2 may not be able to align with the sound hole 11, Example 2 is preferred in this utility model; of course, those skilled in the art can also use other similar structures, and this utility model does not limit them.

[0045] See appendix Figure 4 -Appendix Figure 9 The cross-sections of the sound hole 11 and the movable hole 12 are both circular, the sealing block 2 is cylindrical, and the waterproof and sound-permeable membrane 3, the sealing block 2, the movable hole 12 and the sound hole 11 are coaxially designed.

[0046] Specifically, this design can save installation space for the sealing block 2 and allow the waterproof and sound-permeable membrane 3 to move the sealing block 2 more evenly during deformation, ensuring that the sealing block 2 accurately seals the sound hole 11. On the other hand, when the waterproof and sound-permeable membrane 3 is in its initial state, this design can also make the sound channel 120 formed by the sealing block 2 and the side wall of the movable hole 12 uniform in size, thereby ensuring that the sound can pass evenly and improving the effect of the sound hole 11 receiving or playing sound.

[0047] It should be noted that the sound hole 11, the movable hole 12, the sealing block 2, and the waterproof and sound-permeable membrane 3 can also be other shapes. For example, the sound hole 11 can be designed as a square (not shown in the figure), and the movable hole 12 can be designed as an oblong shape (not shown in the figure). The shapes of the sealing block 2 and the waterproof and sound-permeable membrane 3 can also be adapted according to the shapes of the sound hole 11 and the movable hole 12. Since the shapes of the sound hole 11 and the movable hole 12 are different in different electronic devices, this utility model does not impose any restrictions on them.

[0048] See appendix Figure 1 -Appendix Figure 9 The sealing block 2 is made of elastic material.

[0049] Specifically, the sealing block 2, made of elastic material, has the ability to deform and recover. When the waterproof and breathable membrane deforms, causing the sealing block 2 to squeeze the bottom wall of the movable hole 12, the sealing block 2 deforms under pressure to buffer the pressure applied to the waterproof and breathable membrane by the water, effectively slowing down the deformation rate of the waterproof and breathable membrane. After the water pressure stabilizes, the sealing block 2 will adaptively recover or maintain its original shape to provide stable support for the waterproof and breathable membrane and prevent the waterproof and breathable membrane from being damaged due to excessive deformation. As the waterproof and breathable membrane moves away from the water and returns to its initial state, the sealing block 2 also gradually returns to its original shape.

[0050] See appendix Figure 1 -Appendix Figure 9 The elastic material can be silicone, rubber, elastic plastic, etc. Due to the variety of types, this utility model does not limit it; however, in order to improve the waterproof and cushioning effect, the sealing block 2 in this embodiment is preferably made of silicone.

[0051] Specifically, silicone possesses excellent elasticity and cushioning capabilities, allowing it to deform and buffer under pressure, and quickly return to its original shape after the pressure is released. Furthermore, silicone maintains its elasticity within a temperature range of -50℃ to 250℃, ensuring it does not crack at low temperatures or fail at high temperatures, making it suitable for cold, deep-water applications. In addition, due to its unique molecular structure and physical properties, silicone excels in waterproofing, further preventing water from seeping into the acoustic pores 11 and improving the waterproofing effect.

[0052] See appendix Figure 4 -Appendix Figure 9 The electronic device 1 is also provided with a groove 13, which is located at the opening of the movable hole 12 and connected to the movable hole 12. The waterproof and sound-permeable membrane 3 is embedded in the groove 13. This design not only allows the waterproof and sound-permeable membrane 3 to be hidden below the surface of the electronic device 1, improving the aesthetics, but also improves the installation stability and waterproofness of the waterproof and sound-permeable membrane 3.

[0053] Furthermore, the waterproof and sound-permeable membrane 3 is fixed to the groove 13 by adhesive or by a snap-fit ​​structure. Since there are various installation methods, this utility model does not limit them. For ease of understanding, in this embodiment, the waterproof and sound-permeable membrane 3 is fixed by adhesive to the bottom wall of the groove 13 to ensure installation stability and prevent water leakage at the connection.

[0054] See appendix Figure 4 -Appendix Figure 9 The edges of the opening of the movable hole 12 are chamfered. This design can avoid sharp contact between the opening edge of the movable hole 12 and the waterproof and sound-permeable membrane 3, reduce the wear of the waterproof and sound-permeable membrane 3, and thus further extend the service life of the waterproof and sound-permeable membrane 3.

[0055] See appendix Figure 7 The sound hole 11 is either a microphone receiving hole 111 or a speaker playing hole 112 for electronic device 1.

[0056] Wherein, if the sound hole 11 is a microphone receiving hole 111, the waterproof and sound-permeable membrane 3 and the sealing block 2 are designed to block the channel for receiving sound of electronic device 1 underwater. If the sound hole 11 is a speaker playing hole 112, the waterproof and sound-permeable membrane 3 and the sealing block 2 are designed to block the channel for playing sound of electronic device 1 underwater. In both cases, the working principle of the waterproof and sound-permeable membrane 3 and the sealing block 2 does not change. Therefore, the type of sound hole 11 is not limited in this utility model. That is, the sound hole 11 can also be other holes that can receive or play sound.

[0057] It should be noted that the internal components of electronic device 1, such as the microphone and speaker, are all existing technologies and their installation positions are quite varied. Therefore, this utility model does not impose any restrictions on them, nor does it provide corresponding illustrations.

[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof acoustic pore structure, used in electronic equipment (1), characterized in that, The device includes a sealing block (2) and a waterproof and sound-permeable membrane (3); the electronic device (1) is provided with a sound hole (11) and a movable hole (12), the movable hole (12) is connected to the sound hole (11) and opens outward; the sealing block (2) is placed inside the movable hole (12) and surrounds each other to form a sound channel (120) that connects to the sound hole (11); the waterproof and sound-permeable membrane (3) is installed on the electronic device (1) and closes the opening of the movable hole (12), and the waterproof and sound-permeable membrane (3) is also fixed to the sealing block (2); wherein, the waterproof and sound-permeable membrane (3) can deform or reset with changes in water pressure, so as to drive the sealing block (2) to block or open the sound hole (11).

2. The acoustic pore waterproof structure according to claim 1, characterized in that, The sealing block (2) can enter the sound hole (11) and be press-fitted with the sound hole (11) to block the sound hole (11).

3. The acoustic pore waterproof structure according to claim 1, characterized in that, The cross-sectional area of ​​the sealing block (2) is larger than the cross-sectional area of ​​the sound hole (11), and the sealing block (2) abuts against the bottom wall of the movable hole (12) to block the sound hole (11).

4. The acoustic pore waterproof structure according to claim 3, characterized in that, The cross-sections of the sound hole (11) and the movable hole (12) are both circular, the sealing block (2) is cylindrical, and the waterproof and sound-permeable membrane (3), the sealing block (2), the movable hole (12) and the sound hole (11) are designed coaxially.

5. The acoustic pore waterproof structure according to claim 1, characterized in that, The sealing block (2) is made of an elastic material.

6. The acoustic pore waterproof structure according to claim 5, characterized in that, The sealing block (2) is made of silicone.

7. The acoustic pore waterproof structure according to claim 1, characterized in that, The electronic device (1) is also provided with a groove (13), the groove (13) is located at the opening of the movable hole (12) and connected to the movable hole (12), and the waterproof and sound-permeable membrane (3) is embedded in the groove (13).

8. The acoustic pore waterproof structure according to claim 7, characterized in that, The opening edge of the movable hole (12) is chamfered.

9. A waterproof acoustic pore structure according to any one of claims 1-8, characterized in that, The sound hole (11) is a microphone receiving hole (111) or a speaker playing hole (112) of the electronic device (1).

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