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] The present invention belongs to the technical field of sound hole waterproofing, and particularly relates to a sound hole waterproof structure. Background Art

[0002] A waterproof sound transmission membrane (also known as an MIC mesh) is generally installed at sound holes such as speakers and microphones of electronic devices as a barrier to prevent dust, water or other liquids from entering, while not significantly degrading the sound transmission, integrity or quality, enabling the electronic device to both normally receive or play sound and possess a waterproof function.

[0003] However, the pressure resistance performance of the waterproof sound transmission membrane is limited. Although it can withstand water pressure within a certain water depth range and isolate external liquids from entering the electronic device, if the electronic device is in a deep water and high pressure environment for a long time, the waterproof sound transmission membrane is prone to rapid deformation and enter an accelerated fatigue state, resulting in a decline in waterproof performance until it ruptures and fails. In view of this, it is highly necessary to design a sound hole waterproof structure to solve this problem. Summary of the Invention

[0004] Technical Problem to be Solved The present invention provides a sound hole waterproof structure, which can improve the waterproof performance, delay the deformation of the waterproof sound transmission membrane, and increase the service life of the waterproof sound transmission membrane.

[0005] Technical Solution To achieve the above object, the present invention provides the following technical solution: A sound hole waterproof structure is applied to an electronic device, and it includes a sealing block and a waterproof sound transmission membrane; the electronic device is provided with a sound hole and a movable hole, and the movable hole communicates with the sound hole and opens outward; the sealing block is placed in the movable hole and encloses to form a sound channel connecting the sound hole; the waterproof sound transmission membrane is installed on the electronic device and closes the opening of the movable hole, and the waterproof sound transmission membrane is also fixedly connected to the sealing block; wherein, the waterproof sound transmission membrane can deform or reset with the change of water pressure to drive the sealing block to block or open the sound hole.

[0006] Preferably, the sealing block can enter the sound hole and is in interference fit with the sound hole to block the sound hole.

[0007] Preferably, the cross-sectional area of the sealing block is larger than that of the sound hole, and the sealing block abuts against the bottom wall of the movable hole to block the sound hole.

[0008] Preferably, the cross-sections of the sound hole and the movable hole are both circular, the sealing block is cylindrical, and the waterproof sound transmission membrane, the sealing block, the movable hole and the sound hole are coaxially designed.

[0009] Preferably, the sealing block is made of an elastic material.

[0010] Preferably, the sealing block is made of silica gel.

[0011] Preferably, the electronic device is further provided with a groove, which is located at the opening of the movable hole and communicates with the movable hole, and the waterproof sound-permeable membrane is embedded in the groove.

[0012] Preferably, the waterproof sound-permeable membrane is fixedly bonded to the groove with glue or installed and fixed in the groove through a clamping structure.

[0013] Preferably, the edge of the opening of the movable hole is chamfered.

[0014] Preferably, the sound hole is the microphone receiving hole or the speaker playing hole of the electronic device.

[0015] (III) Beneficial Effects A sound hole waterproof structure provided by the present invention uses a waterproof sound-permeable membrane and a sealing block in cooperation with the movable hole and the sound hole, so that the sound hole is opened on the water surface to normally prevent water and transmit sound, and the sound hole is blocked in a deep water environment, improving the waterproof performance. At the same time, it can also delay the deformation of the waterproof sound-permeable membrane, prevent rapid fatigue damage, and extend the service life of the waterproof sound-permeable membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 shows the schematic use state of the present invention Figure 1 ; Figure 2 shows Figure 1 the front view of Figure 3 shows Figure 2 the A-A cross-sectional view of Figure 4 shows Figure 3 the enlarged view at A in Figure 5 shows the schematic use state of the present invention Figure 2 ; Figure 6 shows Figure 5 the right view of Figure 7 shows Figure 6 the B-B cross-sectional view of Figure 8 shows Figure 7 the enlarged view at B in Figure 9 A schematic exploded view showing the overall structure of the present invention is presented.

[0017] In the figure: 1 is an electronic device, 11 is a sound hole, 111 is a microphone receiving hole, 112 is a speaker playing hole, 12 is a movable hole, 120 is a sound channel, 13 is a groove, 2 is a sealing block, and 3 is a waterproof sound-permeable membrane. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. It can be understood that the accompanying drawings are only for reference and illustration, and are not used to limit the present application. The connection relationships shown in the drawings are only for clear description and do not limit the connection manners.

[0019] 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 intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. It also should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations. The terms used in the description of this application in this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0020] Refer to the appended Figure 1 - appended Figure 9 , a sound hole waterproof structure is applied to the electronic device 1, which includes a sealing block 2 and a waterproof sound-permeable membrane 3; the electronic device 1 is provided with a sound hole 11 and a movable hole 12, and the movable hole 12 communicates with the sound hole 11 and opens outward; the sealing block 2 is placed in the movable hole 12 and encloses each other to form a sound channel 120 communicating with the sound hole 11; the waterproof sound-permeable membrane 3 is installed on the electronic device 1 and closes the opening of the movable hole 12, and the waterproof sound-permeable membrane 3 is also fixedly connected to the sealing block 2; wherein, the waterproof sound-permeable membrane 3 can deform or reset with the change of water pressure to drive the sealing block 2 to block or open the sound hole 11.

[0021] Specifically, when the electronic device 1 is used on the water surface, the waterproof and sound-permeable membrane 3 is in a normal state. The electronic device 1 can be normally waterproof through the waterproof and sound-permeable membrane 3, and can normally play or receive sound through the sound hole 11, the sound channel 120 and the waterproof and sound-permeable membrane 3.

[0022] When the electronic device 1 is used underwater and the water depth reaches a certain level, under the action of water pressure, the waterproof and sound-permeable membrane 3 deforms and drives the sealing block 2 to move downward to block the sound hole 11, so that the electronic device 1 can still be waterproof underwater but cannot transmit sound; during the process of the sealing block 2 blocking 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 to generate a force, and the force acts on the waterproof and sound-permeable membrane 3 through the sealing block 2 to provide buffering and support for the waterproof and sound-permeable membrane 3, thereby delaying the deformation of the waterproof and sound-permeable membrane 3.

[0023] When the electronic device 1 returns to the water surface, the water pressure gradually decreases, and the waterproof and sound-permeable membrane 3 automatically returns to its initial state and drives the sealing block 2 to move upward to open the sound hole 11, so that the sound hole 11 can continue to normally transmit sound through the waterproof and sound-permeable membrane 3.

[0024] In summary, the present invention designs the waterproof and sound-permeable membrane 3 and the sealing block 2 to cooperate with the movable hole 12 and the sound hole 11. It not only makes the sound hole 11 open on the water surface for normal waterproofing and sound transmission, but also makes the sound hole 11 blocked in a deep water environment, improving the waterproof performance. At the same time, it can also delay the deformation of the waterproof and sound-permeable membrane 3, prevent it from being damaged by fatigue too quickly, and extend the service life of the waterproof and sound-permeable membrane 3. <U+

[0025] It should be noted that the electronic device 1 can be products such as mobile phones and tablet computers. There are various types of related electronic devices, and they all belong to the prior art. Therefore, the present invention does not limit this, and does not elaborate on the internal component structure thereof in detail, nor gives corresponding illustrations; the waterproof and sound-permeable membrane 3 is usually made of a polymer film treated with hydrophobic modification, has high elasticity, can deform under pressure, and has a recovery ability. Since it belongs to the prior art, it is not elaborated in detail in the present invention.

[0026] Refer to the atta Figure 1 -atta Figure 8 chment. Regarding the method of the sealing block 2 blocking the sound hole 11, there are various types, and the present invention does not limit this. For the convenience of understanding, the following examples are given in the present invention: Example 1: The illustration is not given. The sealing block 2 can enter the sound hole 11 and have an interference fit with the sound hole 11 to block the sound hole 11.

[0027] 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 thus have resistance (acting force). The resistance acts on the waterproof sound-permeable membrane 3 through the sealing block 2 to provide buffering 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 prevent the generation of gaps and ensure the waterproof performance.

[0028] Example 2: As shown in the Figure 4 - attached Figure 8 figure, the cross-sectional area of the sealing block 2 is larger than that 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.

[0029] Specifically, in this example, when the sealing block 2 blocks the sound hole 11, it will abut against the bottom wall of the movable hole 12, and the bottom wall of the movable hole 12 will provide a supporting force (acting force) for the sealing block 2. The supporting force acts on the waterproof sound-permeable membrane 3 through the sealing block 2 to provide buffering 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 and prevent it from deforming excessively, thus extending the service life.

[0030] It should be noted that considering that Example 1 is likely to cause wear of the sealing block 2, and there is a possibility that the sealing block 2 cannot be aligned and enter the sound hole 11 during the process of the deformation of the waterproof sound-permeable membrane 3 driving the sealing block 2, so Example 2 is preferably adopted in the present invention. Of course, those skilled in the art can also adopt other similar structures, and the present invention does not limit this.

[0031] Referring to the attached Figure 4 - attached Figure 9 figure, 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 sound-permeable membrane 3, the sealing block 2, the movable hole 12 and the sound hole 11 are coaxially designed.

[0032] Specifically, this design can save the installation space of the sealing block 2 and enable the sealing block 2 to be driven more evenly during the deformation process of the waterproof sound-permeable membrane 3, ensuring that the sealing block 2 accurately blocks the sound hole 11. On the other hand, when the waterproof sound-permeable membrane 3 is in the initial state, this design can also make the size of the sound channel 120 formed by the enclosure of the sealing block 2 and the side wall of the movable hole 12 uniform, so as to ensure that the sound can pass through evenly and improve the effect of the sound hole 11 receiving or playing sound.

[0033] It should be noted that the sound hole 11, the movable hole 12, the sealing block 2, and the waterproof sound-permeable membrane 3 can also be of other shapes. For example, the sound hole 11 can be designed as a square (not shown in the figure), the movable hole 12 can be designed as a kidney shape (not shown in the figure), and the shapes of the sealing block 2 and the waterproof sound-permeable membrane 3 are also adaptively adjusted 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 set in different electronic devices are different, the present invention does not limit this.

[0034] Refer to the appendix Figure 1 - appendix Figure 9 , the sealing block 2 is made of an elastic material.

[0035] Specifically, the sealing block 2 made of an elastic material has the ability to deform and recover. When the waterproof and breathable membrane deforms and drives 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 exerted by the water body on the waterproof and breathable membrane, effectively delaying the deformation speed of the waterproof and breathable membrane. After the water pressure stabilizes, the sealing block 2 will adaptively recover or maintain its original state to provide stable support for the waterproof and breathable membrane and prevent the waterproof and breathable membrane from being damaged due to excessive deformation. During the process of the waterproof and breathable membrane returning to its initial state away from the water body, the sealing block 2 also gradually returns to its original state.

[0036] Refer to the appendix Figure 1 - appendix Figure 9 , the elastic material can be silicone, rubber, elastic plastic, etc. Since there are various types, the present invention does not limit this. In order to improve the waterproof effect and buffering effect, the sealing block 2 in this embodiment is preferably made of silicone.

[0037] Specifically, silicone has rich elasticity and buffering ability. It can deform and buffer when receiving pressure and can quickly return to its original state after the pressure is removed. Moreover, silicone remains elastic in the range of -50°C to 250°C, ensuring that it does not become brittle at low temperatures and does not fail at high temperatures, and is suitable for cold deep-water areas. In addition, due to its unique molecular structure and physical properties, silicone performs excellently in the waterproof field and can further prevent water from seeping into the sound hole 11, improving the waterproof effect. Refer to the appendix Figure 4 - appendix Figure 9 , 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 communicates with the movable hole 12. The waterproof sound-permeable membrane 3 is embedded in the groove 13. This design not only makes the waterproof sound-permeable membrane 3 hidden under the surface of the electronic device 1, improving the aesthetics, but also improves the installation stability and waterproofness of the waterproof sound-permeable membrane 3.

[0038] Further, the waterproof sound-permeable membrane 3 is fixedly attached to the groove 13 by glue or installed and fixed in the groove 13 through a snap-fit structure; since there are various related installation methods, the present invention does not limit this. For ease of understanding, in this embodiment, the waterproof sound-permeable membrane 3 is fixed by gluing to the bottom wall of the groove 13 to ensure the installation stability and avoid water leakage at the connection.

[0039] Refer to the attached Figure 4 - attached Figure 9 , chamfering is performed on the opening edge of the movable hole 12. This design can avoid a relatively sharp contact between the opening edge of the movable hole 12 and the waterproof sound-permeable membrane 3, reduce the wear of the waterproof sound-permeable membrane 3, and thus further extend the service life of the waterproof sound-permeable membrane 3.

[0040] Refer to the attached Figure 7 , the sound hole 11 is the microphone receiving hole 111 or the speaker playing hole 112 of the electronic device 1.

[0041] Among them, if the sound hole 11 is the microphone receiving hole 111, the design of the waterproof sound-permeable membrane 3 and the sealing block 2 is used to block the sound receiving channel of the electronic device 1 underwater. If the sound hole 11 is the speaker playing hole 112, the design of the waterproof sound-permeable membrane 3 and the sealing block 2 is used to block the sound playing channel of the electronic device 1 underwater; in both cases, the working principle of the waterproof sound-permeable membrane 3 and the sealing block 2 does not change. Therefore, the type of the sound hole 11 is not limited in the present invention, that is, the sound hole 11 can also be other holes with the function of receiving sound or playing sound.

[0042] It should be noted that the internal components such as the microphone and speaker of the electronic device 1 are all prior arts, and their installation positions are relatively variable. Therefore, the present invention does not limit this and no corresponding illustrations are given.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sound hole waterproof structure is applied to an electronic device (1), and is characterized in that, It includes a sealing block (2) and a waterproof sound-permeable membrane (3); there are a sound hole (11) and a movable hole (12) on the electronic device (1), the movable hole (12) communicates with the sound hole (11) and opens outward; the sealing block (2) is placed in the movable hole (12) and encloses each other to form a sound channel (120) connecting the sound hole (11); the waterproof sound-permeable membrane (3) is installed on the electronic device (1) and closes the opening of the movable hole (12), and the waterproof sound-permeable membrane (3) is also fixedly connected to the sealing block (2); wherein, the waterproof sound-permeable membrane (3) can deform or reset with the change of water pressure to drive the sealing block (2) to block or open the sound hole (11).

2. The sound hole waterproof structure according to claim 1, characterized in that, The sealing block (2) can enter the sound hole (11) and be in interference fit with the sound hole (11) to block the sound hole (11).

3. The sound hole 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 sound hole waterproof structure according to claim 3, wherein, 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 sound-permeable membrane (3), the sealing block (2), the movable hole (12) and the sound hole (11) are coaxially designed.

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

6. The sound hole waterproof structure according to claim 5, wherein The sealing block (2) is made of silica gel.

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

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

9. A sound hole waterproof 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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