CN221930044U - Waterproof assembly of acoustic equipment sound through hole - Google Patents

Abstract

The specification provides a waterproof assembly for a sound hole of an acoustic device. The waterproof assembly comprises a waterproof membrane, a buffer piece and a supporting piece; the waterproof membrane is configured to allow air molecules to pass through and block water molecules from passing through; the buffer member includes an adhesive surface having an adhesiveness to adhere the waterproof assembly to a target surface after being subjected to an external pressure; the support is positioned between the waterproofing membrane and the cushioning member to reduce the degree of wrinkling of the waterproofing membrane when the waterproofing assembly is assembled. By providing the support member and the buffer member, the waterproof film is not easily wrinkled and deformed in the process of being assembled to the acoustic device, so that the waterproof film can maintain good acoustic performance and waterproof effect.

Description

Waterproof assembly of acoustic equipment sound through hole

Technical Field

The utility model belongs to the technical field of electronic equipment, and particularly relates to a waterproof assembly of a sound through hole of acoustic equipment.

Background

The housing of the acoustic device will typically be provided with sound openings for passage of sound from the external environment to the interior of the acoustic device or from the interior of the acoustic device to the external environment. When the acoustic device is used in the field or in a wet environment, liquids such as water can easily enter the acoustic device through the sound passing holes in the housing. For example, a microphone of the wireless earphone must be provided with a sound through hole in order to pick up ambient sound and ensure the conversation quality, so as to conduct air conduction and sound transmission. When a user carries the wireless earphone to perform underwater activities (such as swimming), water can enter the earphone from the sound through hole. After the wireless earphone is powered in water, normal use functions of internal devices of the wireless earphone can be affected, for example, a microphone or a loudspeaker is disabled, and even a circuit of a main board or part of devices is shorted, so that a user cannot use the wireless earphone normally.

Therefore, the existing acoustic devices need to take certain measures to improve their waterproof protection performance, and in particular, should strengthen the waterproof protection for components such as microphones and speakers.

Disclosure of utility model

The specification provides a waterproof assembly of acoustic equipment sound through hole, can strengthen the waterproof performance of acoustic equipment. The waterproof assembly comprises a waterproof membrane, a buffer piece and a supporting piece; the waterproof membrane is configured to allow air molecules to pass through and block water molecules from passing through; the buffer member includes an adhesive surface having an adhesiveness to adhere the waterproof assembly to a target surface after being subjected to an external pressure; the support member is located between the waterproof membrane and the buffer member to reduce a degree of wrinkling of the waterproof membrane when the waterproof assembly is assembled to the acoustic device, wherein the support member and the buffer member are provided with a first through hole and a second through hole, respectively.

In some embodiments, the acoustic device comprises an acoustic sensor that is a speaker or microphone; and when the acoustic device is in operation, at least part of the sound waves are transmitted into or out of the acoustic device through the waterproof membrane.

In some embodiments, the waterproofing membrane comprises a first waterproofing surface and a second waterproofing surface; the support piece comprises a first support piece and a second support piece, the first support piece is connected with the first waterproof surface, and the second support piece is connected with the second waterproof surface; the buffer piece includes first buffer piece and second buffer piece, first buffer piece includes first junction surface and first bonding face, first junction surface with first support piece is connected, second buffer piece includes second junction surface and second bonding face, the second junction surface with second support piece is connected.

In some embodiments, the waterproofing membrane comprises a first waterproofing surface and a second waterproofing surface; the buffer piece comprises a first connecting surface and a first bonding surface; one side of the supporting piece is connected with the first waterproof surface, and the other side of the supporting piece is connected with the first connecting surface.

In some embodiments, the support is bonded to the waterproofing membrane by an adhesive layer; and the thickness of the adhesive layer ranges from 0.03mm to 0.15mm.

In some embodiments, a screen is also included in connection with the cushioning member to enhance the waterproofing capability of the waterproofing assembly.

In some embodiments, the acoustic device includes a housing, the sound hole is disposed on the housing, and the gauze is disposed on a side of the waterproof assembly proximate the sound hole.

In some embodiments, the buffer and the support are annular, the first through hole and the second through hole are round holes, and the diameter of the first through hole and the second through hole ranges from 0.8mm to 1.8mm; and the outer diameters of the buffer piece and the supporting piece are in the range of 2.4 mm-4.6 mm.

In some embodiments, the thickness of the waterproofing membrane is 0.10mm or less.

In some embodiments, the cushioning member is an elastic member, wherein the cushioning member is the most elastically deformed member of the waterproof assembly when the waterproof assembly is assembled.

In some embodiments, the material of the buffer member comprises foam or acrylic.

In some embodiments, the cushioning member has a thickness in the range of 0.1mm or greater.

In some embodiments, the support has a thickness in the range of 0.1mm or less.

In some embodiments, the total thickness of the waterproof assembly ranges from 0.37mm to 0.61mm for installation in the acoustic device.

According to the technical scheme, the waterproof assembly provided by the specification is provided with the supporting piece and the buffer piece to realize that the waterproof assembly is difficult to wrinkle and deform in the process of being assembled to the acoustic equipment, so that the waterproof membrane can keep good acoustic performance and waterproof effect. Further, support piece and bolster in this specification stack in the both sides of waterproofing membrane symmetrically for the waterproofing membrane is all can be supported and protected from top to bottom, thereby and the waterproofing membrane can keep good acoustic properties and water-proof effects, and then strengthen the water-proof effects of waterproofing module.

Additional functions of the flashing assembly provided in this specification will be set forth in part in the description that follows. The inventive aspects of the flashing assemblies provided herein may be fully explained by the practice or use of the methods, devices and combinations described in the following detailed examples.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present description, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present description, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1A illustrates a block diagram of an acoustic device provided in accordance with some embodiments of the present description;

FIG. 1B illustrates a block diagram of a waterproof assembly provided in accordance with some embodiments of the present application;

Figure 2A illustrates a schematic diagram of a waterproofing membrane provided in accordance with some embodiments of the present disclosure when subjected to pressure;

Fig. 2B illustrates a schematic diagram of a flashing assembly provided in accordance with some embodiments of the present disclosure when subjected to pressure;

Fig. 3 is a schematic view illustrating a structure in which a waterproof assembly provided according to some embodiments of the present specification is installed in an acoustic device; and

Fig. 4 illustrates a schematic view of the location of a screen provided in accordance with some embodiments of the present description.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the invention, and is provided in the context of a particular application and its requirements. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the disclosure. Thus, the present description is not limited to the embodiments shown, but is to be accorded the widest scope consistent with the claims.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. For example, as used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. The terms "comprises," "comprising," "includes," and/or "including," when used in this specification, are taken to specify the presence of stated integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present specification, the expression "X includes at least one of A, B or C" means that X includes at least a, or X includes at least B, or X includes at least C. That is, X may include only any one of A, B, C, or any combination of A, B, C, as well as other possible content/elements. Any combination of the A, B, C may be A, B, C, AB, AC, BC, or ABC.

In the present specification, "or" and/or "describe association relationships between associated objects, and represent a non-exclusive inclusion. For example, each of "a and/or B" and "a or B" may include: only "a" exists, only "B" exists, and both "a" and "B" exist, where "a" and "B" may be singular or plural. As another example, each of "A, B and/or C" and "A, B or C" may include: only "a" exists, only "B" exists, only "C" exists, both "a" and "B" exist, both "a" and "C" exist, both "B" and "C" exist, and both "a", "B" and "C" exist, where "a", "B" and "C" may be singular or plural.

In this specification, "plurality" means two or more.

In the present specification, unless explicitly stated otherwise, the association relationship generated between structures may be a direct association relationship or an indirect association relationship. For example, when "a is connected to B" is described, unless it is specifically stated that a is directly connected to B, it is understood that a may be directly connected to B or indirectly connected to B; for another example, when "a is above B" is described, unless it is explicitly stated that a is directly above B (AB is adjacent to and a is above B), it should be understood that a may be directly above B, or a may be indirectly above B (AB is sandwiching other elements, and a is above B). And so on.

These and other features of the present specification, as well as the operation and function of the related elements of structure, as well as the combination of parts and economies of manufacture, may be significantly improved upon in view of the following description. All of which form a part of this specification, reference is made to the accompanying drawings. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the description. It should also be understood that the drawings are not drawn to scale.

The application is illustrated in detail below by means of specific examples:

The housing of the acoustic device will typically be provided with sound openings for passage of sound from the external environment to the interior of the acoustic device or from the interior of the acoustic device to the external environment. For example, a wireless earphone with a call function may have a sound hole for a microphone to pick up sound in order to receive sound propagated through air in order to ensure call quality. In order to ensure that liquid such as water is prevented from entering the acoustic device after the acoustic device is applied in the field or in a humid environment, and ensure that the acoustic device can still work normally, liquid-proof treatment is required to be performed on the sound through hole of the acoustic device, for example, a waterproof structure is arranged at the sound through hole to prevent liquid from entering. The specification provides a waterproofing assembly, sets up waterproofing assembly near acoustic equipment's sound hole, thereby do the liquid-proof ability that prevents that liquid was handled acoustic equipment to sound hole department. The liquid in this specification includes, but is not limited to, water, oil, sweat, etc., and water is exemplified below for convenience of description. In the following description, the waterproof assembly will be described by taking the acoustic device as a (wireless) earphone, which may be a bone conduction earphone, an air conduction earphone or a bone air conduction earphone. Those skilled in the art will appreciate that the acoustic device may be a cell phone, computer, audio recorder, etc.

Fig. 1A illustrates a block diagram of an acoustic device 01 provided in accordance with some embodiments of the present description. Fig. 1B illustrates a block diagram of a flashing assembly 10 provided in accordance with some embodiments of the present application.

The acoustic device 01 shown in fig. 1A is a (wireless) earpiece, which will be described below by taking the acoustic device 01 as a (wireless) earpiece, which may be a bone conduction earpiece, an air conduction earpiece or a bone air conduction earpiece. It is to be appreciated that the acoustic device 01 may be a cell phone, a computer, a recorder, or other acoustic devices.

As shown in fig. 1B, the waterproof assembly 10 may include a waterproof membrane 100, a support 200, and a buffer 300. Wherein the support 200 may be located between the waterproof membrane 100 and the buffer 300. In some embodiments, the flashing assembly 10 may also include a gauze (not shown in fig. 1B).

The waterproofing membrane 100 may allow air molecules to pass through and block water molecules from passing through. In some embodiments, the waterproofing membrane 100 may be made using a waterproofing and breathable material having an equivalent microporous structure, the waterproofing and breathable material being characterized by air molecules that can pass through the equivalent microporous structure and water molecules that cannot pass through the equivalent microporous structure. Further, the surface tension of the waterproof membrane 100 may enable the water droplets to form a sphere on the surface of the membrane, thereby reducing the contact area between the water molecules and the waterproof membrane 100, and further improving the waterproof effect of the waterproof membrane 100. Specifically, an acoustic sensor including, for example, a speaker or a microphone may be disposed at the sound through hole of the acoustic device 01, and when the acoustic device 01 operates, the acoustic sensor transmits or receives sound waves, and when the sound waves propagate to the interface of the waterproof membrane 100, air molecules may freely enter and exit the equivalent microporous structure in the waterproof membrane 100 due to the larger inter-molecule space and smaller molecules, for example, environmental sound waves are collected by the microphone through the waterproof membrane 100, or sound waves generated by, for example, the speaker pass through the waterproof membrane 100 to the outside of the acoustic device 01. That is, the pore size of the equivalent microporous structure of the waterproof membrane 100 needs to satisfy: the air molecules may be transferred from the equivalent microporous structure of the waterproofing membrane 100 into the acoustic device or out of the acoustic device.

The material of the waterproof membrane 100 is also required to meet the requirements of the acoustic device 01 for water pressure resistance, the influence of the water pressure resistance on the acoustic performance, and the like. The waterproof membrane 100 needs to withstand a water pressure above a preset value, which can be obtained by the acoustic device 01 during the waterproof test. For example, the earphone equipped with the waterproof membrane 100 is subjected to a test of dynamic waterproofing and static waterproofing, and the waterproof membrane 100 reaching IPX 5-level waterproofing and IPX 68-level waterproofing is selected and the corresponding water pressure resistance value thereof is taken as a preset value. The static waterproof test is to immerse the acoustic device mounted with the waterproof membrane in the hydrostatic water to bear a preset hydrostatic pressure to test the waterproof property of the waterproof membrane 100; the dynamic waterproof test is a dynamic simulation of simulating a user's swimming or the like after immersing the device mounted with the waterproof membrane 100 in water, to test the waterproof property of the waterproof membrane 100.

In addition, the waterproofing membrane 100 is required to have a small influence on the acoustic performance. The impact of the waterproofing membrane 100 on acoustic performance can be measured by sound transmission loss. The sound transmission loss refers to a change in frequency distribution and volume of sound of a preset frequency after passing through the waterproof membrane 100. If the waterproof membrane 100 plays a role in transmitting the vibration of the sound as a medium of the vibration, the frequency response characteristic of the waterproof membrane 100 itself on the vibration may affect the transmission of the sound as a transfer function, for example, the decibel of the sound after passing through the waterproof membrane 100 may be reduced, and the frequency distribution may be changed. The waterproof membrane 100 should be selected so that the sound transmission loss is small. For example, headphones may use a waterproofing membrane 100 with a sound transmission loss of less than 2 dB.

In some embodiments, the material of the waterproof membrane 100 may be expanded polytetrafluoroethylene (expanded Poly Tetra Fluoro Ethylenee, ePTFE) or Polyurethane (PU). Both materials meet the above requirements in terms of resistance to water pressure and influence on acoustic properties. Among other things, ePTFE also has good corrosion and high temperature resistance properties, enabling the acoustic device 01 to be used in a wider variety of contexts. Of course, ePTFE and PU are just one of many materials that can be used as the waterproofing membrane of the present application, and other types of materials can be used for the waterproofing membrane 100 of the present application, and the present application is not limited thereto.

In some embodiments, the thickness of the waterproofing membrane 100 is 0.10mm or less to ensure waterproofing capability while reducing occupation of the interior space of the housing. The shape of the waterproofing membrane 100 may be designed or tailored according to the installation requirements. As shown in fig. 1B, the waterproofing membrane 100 has a circular shape. Of course, the shape of the waterproofing membrane 100 may be square, oval, rectangular, racetrack, etc., and is not required herein.

The waterproofing membrane 100 may be connected to the support 200. The support 200 may reduce the degree of wrinkling of the waterproofing membrane 100 during installation of the waterproofing assembly 10. When the waterproof assembly 10 is assembled into the earphone, the waterproof assembly 10 is generally subjected to a given external pressure to ensure the assembly stability. The pressure given by the outside can be the gravity of the acoustic assembly or the pressure applied by the pressure jig. The pressure may have a lateral component, that is, the waterproof membrane 100 may be subjected to a lateral shearing force, and if the waterproof membrane 100 is subjected to the shearing force alone, wrinkles may be generated, which may affect the waterproof performance thereof. The support 200 is resistant to deformation and therefore hardly deforms when subjected to a shearing force. The shear resistance of the waterproofing membrane 100 supported by the support member 200 is also enhanced so that the degree of wrinkling of the waterproofing membrane 100 during assembly is reduced. The degree of wrinkling of the waterproof film 100 may be a difference in height between the highest point and the lowest point of the waterproof film 100 after the wrinkling, based on the waterproof film 100 being in a flat state. The larger the height difference is, the greater the degree of wrinkling is; the smaller the height difference, the smaller the degree of wrinkling. The degree of wrinkles of the waterproof film 100 may be observed by an industrial microscope. The larger the deformation (wrinkles) of the waterproof membrane 100, the greater the influence of its own transfer function on the sound propagation, and the greater the change in the sound quality and volume of the sound passing through the waterproof membrane 100. The support 200 makes the waterproof membrane 100 less prone to wrinkling and deformation during assembly, thereby ensuring a relatively small variation in sound transmission loss thereof. In addition, since the waterproof membrane 100 is not easily deformed during the assembly process, the original shape and the initial transfer function thereof can be maintained as much as possible, thereby ensuring the consistency of the waterproof assemblies 10 (waterproof membrane 100) on the same earphone or on different earphones.

The waterproofing membrane 100 comprises a first waterproofing surface 110 and a second waterproofing surface 120. In some embodiments, the support 200 may be a single support 200, and the single support 200 may be connected to only one side of the waterproofing membrane 100, for example to the first waterproofing surface 110 or to the second waterproofing surface 120. In other embodiments, the supporting member 200 may be a plurality of supporting members 200, and the waterproof membranes 100 of the plurality of supporting members 200 are connected together to ensure that the waterproof membranes 100 are not easy to wrinkle in both stress directions (for example, the direction pointing to the side of the first waterproof surface 110 and the direction pointing to the side of the second waterproof surface 120), so as to further enhance the shearing resistance of the waterproof membranes 100.

In some embodiments, the support 200 may include a first support 210 and a second support 220, and the first support 210 and the second support 220 are symmetrically distributed on both sides of the waterproofing membrane 100. Wherein the first support 210 is coupled to the first waterproof surface 110 and the second support 220 is coupled to the second waterproof surface 120. The support members 200 are connected to both sides of the waterproof membrane 100, so that the waterproof membrane 100 is sandwiched between the two support members 200 to form a "sandwich" structure. When a shearing force exists in the force applied to the waterproof assembly 10, the above symmetrical structure can move together with the waterproof membrane 100 therebetween, so that the waterproof membrane 100 is not wrinkled and deformed due to the shearing force alone.

The support 200 and the waterproof membrane 100 may be bonded by the adhesive layer 400. In some embodiments, the adhesive layer 400 is an acrylic adhesive. The strength and rigidity of the acrylic adhesive are relatively high, and the use of the acrylic adhesive to adhere the support 200 and the waterproofing membrane 100 ensures that the adhesive layer 400 is not easily deformed when the support 200 and the waterproofing membrane 100 are subjected to a lateral force, thereby causing deformation of the waterproofing membrane 100. To ensure the firmness of the adhesion, the thickness of the adhesive layer 400 should not be too thin or too thick to facilitate the processing of the waterproofing assembly 10 and to obtain a greater strength of the "sandwich" structure in which the waterproofing membrane 100 is sandwiched between the two support members 200. In some embodiments, the thickness of the adhesive layer 400 may range from 0.03mm to 0.15mm.

The support 200 is provided with a first through hole 230. When the acoustic device 01 includes a housing and the housing is provided with a sound through hole, the first through hole 230 may be adapted to the size of the sound through hole. The shape of the first through-hole 230 may be circular, rectangular, elliptical, square, etc. As shown in fig. 1B, the first through hole 230 is circular. As long as the shape of the first through hole 230 can be adapted to the through hole, the shape of the through hole 230 is not specifically required herein. The first through-hole 230 is also sized appropriately. The support member 200 is a circular ring shape, and the first through hole 230 is a circular hole. The diameter range of the circular hole is not easily too small so as not to have an influence on sound entry, resulting in an increase in sound loss of the waterproof assembly 10, thereby causing the waterproof assembly 10 to have an influence on the acoustic performance of the acoustic device 01. In some embodiments, the (inner) diameter of the circular aperture may range between 0.8mm and 1.8 mm. The annular region of the support 200 and the waterproofing membrane 100 are bonded by the adhesive layer 400. The annular bonding area of the support member 200 and the waterproofing membrane 100 is not necessarily too small to ensure the firmness and waterproofing of the bonding of the support member 200 and the waterproofing membrane 100. In some embodiments, the width of the annular bonding region is greater than 0.8mm to ensure that the annular bonding region has a strong bonding capability. The annular bonding area of the support 200 to the waterproofing membrane 100 is also preferably not too large to match the fitting space reserved for the waterproofing assembly 10 by the acoustic device 01. In some embodiments, the width of the annular bonding region ranges from 0.8mm to 1.4mm to ensure that the annular bonding region has a strong bonding capability and matches the assembly space. In some embodiments, the outer diameter of the annular ring may range from 2.4mm to 4.6mm based on the diameter range of the circular hole and the width range of the annular bonding region described above.

In some embodiments, the material of the support 200 may be polyethylene terephthalate (Polyethylene Terephthalate, PET for short). PET has good deformation resistance, can support the waterproof membrane 100, and improves the shear resistance of the waterproof assembly 10 (waterproof membrane 100). In some embodiments, the thickness range of the support 200 is 0.1mm or less, which reduces the space occupied inside the housing while ensuring the support strength.

In some embodiments, the buffer 300 may be an elastic member having an adhesive surface. The adhesive surface has tackiness to adhere the flashing assembly 10 to a target surface after being subjected to external pressure. In other embodiments, the buffer 300 may be an adhesive having elasticity. The acoustic device 01 may include a housing provided with a sound passing hole, and the target surface is a housing inner wall surface around the sound passing hole. The buffer 300 may be adhered to the case through an adhesive surface so that the waterproof assembly 10 can be fixed to the inner wall of the case and cover the sound passing hole. As another example, the acoustic device 01 may also include an acoustic assembly. The face on the acoustic assembly is the target surface and the buffer 300 is bonded to the acoustic assembly by the bonding face to secure the acoustic assembly. The buffer 300 is provided with a second through hole 330, and the shape and the size of the second through hole 330 can be similar to those of the first through hole 230, which are not described herein.

The buffer 300 may be connected with the support 200. In some embodiments, the bumper 300 may be a single bumper 300. A single buffer 300 is connected to one side of the support 200. In other embodiments, the cushioning members 300 may also be a plurality of cushioning members 300. For example, the buffer 300 may include a first buffer 310 and a second buffer 320, corresponding to the aforementioned first and second supports 210 and 220, the first buffer 310 being connected to the first support 210, and the second buffer 320 being connected to the second support 220. Wherein, the first buffer member 310 may include a first connection surface 311 and a first bonding surface 312. The first connection surface 311 may be connected with the first support 210. The first connection surface 311 may also have an adhesive property, and the first connection surface 311 may be adhered to the first support 210. The second buffer 320 may include a second connection surface 321 and a second adhesive surface 322. The second connection surface 321 may be connected to the second support 220. The second connection surface 321 may also have an adhesive property, and the second connection surface 321 may be adhered to the second support 220. The first adhesive surface 312 or the second adhesive surface 322 of the buffer 300 may be adhered to the target surface, and the other adhesive surface may be connected to other components or other acoustic assemblies in the acoustic device 01.

As previously described, the flashing assembly 10 may include a single support 200 and a single bumper 300. One side of the waterproof membrane 100 may be connected to the support 200. One side of the support 200 may be connected to the first waterproof surface 110 of the waterproof membrane 100, and the other side of the support 200 is connected to the first connection surface 311 of the buffer 300. The supporting member 200 and the buffer member 300 form a single-sided structure to support the waterproof membrane 100, thereby providing it with a stable waterproof effect.

As described above, both sides of the waterproof membrane 100 may be connected to the supporting member 200, respectively. Two supports 200 sandwich waterproofing membrane 100, forming a "support 220-waterproofing membrane 100-support 210" sandwich structure. The symmetrical structure described above allows the waterproof membrane 100 to be sandwiched by the supporting members 200 to form a single body when the waterproof membrane 100 is subjected to a shearing force (lateral force) during the assembly process. The whole slides left and right under the action of shearing force. That is, the waterproof membrane 100 is not subjected to a separate shearing force to be wrinkled or deformed. Further, two buffers 300, a first buffer 310 and a second buffer 320 may be connected to both sides of the sandwich structure. The buffer member 300 can uniformly disperse physical pressure (impact energy) applied to the waterproof assembly 10, and thus the buffer member 300 can protect the waterproof membrane 100 from being wrinkled due to receiving a large impact during the installation of the waterproof assembly 10, thereby affecting the waterproof performance and the acoustic performance thereof. And the side of the buffer 300 not connected with the sandwich structure may have an adhesive property, so that the sandwich structure can be adhered to the target surface to complete assembly. The use of the "sandwich" structure, as well as the structure of the double-layered support 210, allows both sides of the waterproofing membrane 100 to be protected, with more stable waterproofing performance.

In some embodiments, the first adhesive surface 312 may adhere to the inner wall of the housing around the sound passing hole when the waterproof assembly 10 is assembled inside the housing of the acoustic device 01. The waterproof assembly 10 is pressed to firmly bond the first bonding surface 312 to the housing. For example, the first bonding surface 312 and the inner wall of the case may be firmly bonded by applying pressure in a direction perpendicular to the first bonding surface 312 for a certain time by a pressure jig. Due to the existence of the tool error, the pressure jig has a force (shear force) acting on the waterproof assembly 10 in the horizontal direction (the direction parallel to the first bonding surface) in addition to the vertical direction. For example, the flashing assembly 10 is subjected to pressure created by the weight of the acoustic assembly itself. Due to uncertainty of the placement position of the acoustic member, the acoustic member has an effect of a force (shear force) on the waterproof member 10 in a horizontal direction (a direction parallel to the first bonding surface) in addition to the vertical direction. Because the support member 200 has strong deformation resistance, it is hardly deformed when subjected to the above-mentioned shearing force, so that the shearing resistance of the waterproof assembly 10 (waterproof membrane 100) can be enhanced, and thus the waterproof membrane 100 is ensured not to be deformed easily during the assembly process, and the acoustic loss is ensured to be small.

Meanwhile, the buffer 300 is an elastic member or an adhesive having elasticity, in other words, the buffer 300 has elasticity. The buffer 300 can uniformly disperse the high-speed physical pressure (impact energy) applied to the waterproof assembly 10. When the waterproof assembly 10 receives a force in a direction perpendicular to the first bonding surface 312, the buffer 300 may be compressed in the vertical direction. Meanwhile, since the buffer 300 has elasticity, even if the waterproof assembly 10 is subjected to a lateral shearing force, at least a part of the shearing force can be released first in the elastic buffer 300. I.e., shear forces, are used to laterally deform the bumper 300. Thereby reducing the effect of the shearing force acting on the supporting member 200 and the waterproof membrane 100, so that the supporting member 200 and the waterproof membrane 100 can not generate larger shearing stress, the internal structures of the supporting member 200 and the waterproof membrane 100 are prevented from being damaged, the shearing resistance of the waterproof assembly 10 is further improved, and the waterproof performance of the waterproof assembly 10 is ensured.

Since the buffer member 300 has elasticity, the waterproof assembly 10 can be elastically deformed more than other structures in the waterproof assembly 10, so that the waterproof assembly 10 can better adapt to errors in the assembly space in the housing. For example, when the height of the fitting space reserved in the earphone housing is small, the waterproof assembly 10 can be adapted to the height of the fitting space by compressing the buffer 300.

The degree of elastic deformation of the various components of the flashing assembly 10 may be used

(Raw thickness-compressed thickness)/raw thickness x100% is calculated. For example by first recording the original thickness of each part. When the waterproof assembly 10 is pressed down, the thickness of each component after being compressed is recorded, thereby obtaining the degree of deformation of each component.

Fig. 2A illustrates a schematic view of a waterproofing membrane 100 provided according to some embodiments of the present disclosure when subjected to pressure; fig. 2B illustrates a schematic view of a flashing assembly 10 provided in accordance with some embodiments of the present disclosure when subjected to a compressive force.

The first waterproof surface 110 or the second waterproof surface 120 of the waterproof membrane 100 may be wrinkled when subjected to a pressure F that is not perpendicular to the surface of the waterproof membrane 100. As shown in fig. 2A, the pressure F includes a component perpendicular to the surface of the waterproofing membrane 100 and a component rightward along the surface of the waterproofing membrane 100. The rightward component causes the waterproofing membrane 100 to buckle. Wherein there is a height difference H between the highest point and the lowest point of the waterproof membrane 100 after the folding.

As shown in fig. 2B, the support 200 includes a first support 210 and a second support 220, and the first support 210 and the second support 220 are symmetrically distributed on both sides of the waterproofing membrane 100. The support members 200 are connected to both sides of the waterproof membrane 100, so that the waterproof membrane 100 is sandwiched between the two support members 200 to form a "sandwich" structure. When the "sandwich" structure formed by the waterproofing membrane 100 and the support member 200 is also subjected to the pressure F that is not perpendicular to the surface of the waterproofing membrane 100, the support member 200 is hardly deformed when subjected to the above-described pressure F because the deformation resistance of the support member 200 is strong. The waterproofing membrane 100 is sandwiched by the first support 210 and the second support 220 to form a single body, and thus little deformation occurs. The first buffer member 310 and the second buffer member 320 are respectively located at two sides of the supporting member 200, and sandwich the above-mentioned "sandwich" structure. Since the cushioning member 300 has elasticity, the cushioning member 300 undergoes most of the deformation when subjected to the pressure F. As shown in fig. 2B, the component F2 deforms the buffer member 300, so as to drive the waterproof assembly 10 to slide left and right as a whole. In this process, the waterproofing membrane 100 is hardly deformed, thereby ensuring a small acoustic loss.

In some embodiments, the material of the buffer 300 may be foam, foam+acrylic (acrylate adhesive), or acrylic (acrylate adhesive). The foam rubber has the advantages of good elasticity, light weight, ultrathin volume and the like, can provide good elastic deformation capability, and can reduce the whole volume and weight of the waterproof assembly 10. The acrylic rubber has the advantages of high strength, impact resistance, strong shearing force and the like, and can improve the overall strength and shearing resistance of the waterproof assembly 10. In some embodiments, the first cushioning member 310 and the second cushioning member 320 may be both foam or may be both foam and acrylic. In other embodiments, the first buffer member 310 and the second buffer member 320 may be made of foam, and the other is made of foam+acrylic.

In some embodiments, the thickness of the bumper 300 ranges from 0.1mm or greater. The bumper 100, having a certain thickness, may increase the deformability of the flashing assembly 10, thereby facilitating assembly of the flashing assembly 10 into a housing. The thicknesses of the first buffer 310 and the second buffer 320 may or may not be uniform. For example, the first and second cushioning members 310, 320 may each be foam. And the thickness of the foam used for the first cushioning member 310 is 0.1mm, and is adhered to the inner wall of the housing. The second cushioning member 320 uses a foam of 0.2mm thickness and is bonded to the acoustic assembly. The larger the thickness of the foam rubber, the stronger the adhesion and the waterproof capability. Because the hydraulic impact force at the sound through hole is larger, the thickness of the foam adhesive bonded with the inner wall around the sound through hole can be thicker, thereby ensuring the bonding firmness.

The total thickness range of the waterproof assembly 10 may be adapted to and higher than the thickness of the fitting space reserved for the waterproof assembly 10 at the sound passing hole by the case of the acoustic device 01 so as to be capable of being pressed by the microphone or speaker in the acoustic device 01 after the waterproof assembly 10 is fitted into the fitting space. Fig. 3 is a schematic view showing a structure in which the waterproof assembly 10 provided according to some embodiments of the present specification is installed in an acoustic device 01. In some embodiments, the total thickness of the flashing assembly 10 ranges from 0.37mm to 0.61mm to ensure that the flashing assembly 10 has a thickness that facilitates installation while reducing the space occupied by the housing. As shown in fig. 3, a receiving cavity 500 for installing the waterproof assembly 10 is left at the sound through hole of the earphone. For example, the depth of the receiving cavity 500 may range from 0.25mm to 0.45mm, i.e., the thickness of the housing reserved for the waterproof assembly 10 ranges from 0.25mm to 0.45mm. When the thickness of the waterproof assembly 10 is greater than the depth of the receiving chamber 500, the waterproof assembly 10 may be compressed to be flat with the receiving chamber 500 after being placed in the receiving chamber 500, as shown in fig. 3.

In some embodiments, the flashing assembly 10 may also include a screen 600. Fig. 4 illustrates a schematic view of the location of a screen 600 provided in accordance with some embodiments of the present description. As previously described, the acoustic device 01 may include a housing, and the sound through hole may be provided on the housing. In some embodiments, the screen 600 may be disposed on a side of the waterproof assembly 10 adjacent to the sound hole. When the user wears the acoustic device 01 to perform underwater activities, if water flows from the sound through holes to the acoustic device 01, the water flows through the gauze 600, and the gauze can disperse the water flow through the meshes, so that the impact force applied to the waterproof membrane 100 is relatively dispersed, the stress on the waterproof membrane 100 is relatively small, and the waterproof membrane 100 is not easy to deform, so that the waterproof capability of the waterproof membrane 100 (the waterproof assembly 10) is improved. In some embodiments, the screen 600 may be disposed on a side of the waterproof assembly 10 that is remote from the sound passing hole, as shown in fig. 4. When the waterproofing membrane 100 encounters a large water pressure, the waterproofing membrane 100 may be deformed, affecting its waterproofing performance. The gauze 600 may be disposed behind the waterproof membrane 100 to act as a support or barrier, thereby preventing the waterproof membrane 100 from being excessively deformed, and thus causing the acoustic properties of the waterproof membrane 100 to be changed, so as to increase the waterproof capability of the waterproof membrane 100.

In some embodiments, the flashing assembly 10 may also include a steel mesh. Like a gauze, when a steel mesh is provided on the side of the waterproof assembly 10 near the sound hole. The steel mesh can disperse water flow through the mesh holes, so that impact force applied to the waterproof membrane 100 can be dispersed relatively, the stress on the waterproof membrane 100 is smaller everywhere, and the waterproof membrane 100 is not easy to deform, so that the waterproof capability of the waterproof membrane 100 (the waterproof assembly 10) is improved. In some embodiments, a steel mesh may be provided on the side of the waterproofing assembly 10 remote from the sound through hole, and may serve as a support or barrier behind the waterproofing membrane 100, thereby preventing excessive deformation of the waterproofing membrane 100. And the steel mesh has higher rigidity, is not easy to deform, and can bear higher water pressure, thereby well preventing the waterproof membrane 100 from deforming.

In some embodiments, the flashing assembly 10 may also include a microplate. The micro-porous plate may be disposed on a side of the waterproof assembly 10 remote from the sound passing hole. In some embodiments, a microplate may also be disposed on the side of the flashing assembly 10 adjacent to the sound passing hole. The function of the microplate is similar to that of the gauze and steel mesh described above, and will not be described in detail herein.

It should be noted that the waterproof assembly 10 may be provided with only one of the above gauze 600, steel mesh or micro-porous plate to serve as a shunt or support for the waterproof membrane 100, or may be provided with a plurality of the above gauze 600, steel mesh or micro-porous plate to enhance the protection capability of the waterproof assembly 10. In some embodiments, the flashing assembly 10 includes both a gauze 600 and a steel mesh.

In summary, the present description provides a waterproof assembly 10 for a sound hole of an acoustic device 01. The waterproof assembly 10 is configured in a sandwich structure of the support 200-the waterproof membrane 100-the support 200, so that the waterproof membrane 100 of the waterproof assembly 10 is not easy to be wrinkled and deformed due to shearing force in the process of being assembled to the acoustic device 01, and thus the waterproof assembly 10 can maintain good acoustic performance and waterproof effect. Further, the supporting members 200 in the present disclosure are symmetrically stacked on both sides of the aforementioned "sandwich" structure, so as to form a more stable symmetrical stacked structure, so that the waterproof membrane 100 can be supported and protected up and down, and thus the waterproof membrane 100 can maintain good acoustic performance and waterproof effect, and further enhance the waterproof effect of the waterproof assembly 10.

The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

In view of the foregoing, it will be evident to a person skilled in the art that the foregoing detailed disclosure may be presented by way of example only and may not be limiting. Although not explicitly described herein, those skilled in the art will appreciate that the present description is intended to encompass various adaptations, improvements, and modifications of the embodiments. Such alterations, improvements, and modifications are intended to be proposed by this specification, and are intended to be within the spirit and scope of the exemplary embodiments of this specification.

Furthermore, certain terms in the present description have been used to describe embodiments of the present description. For example, "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present description. Thus, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the invention.

It should be appreciated that in the foregoing description of embodiments of the present specification, various features have been combined in a single embodiment, the accompanying drawings, or description thereof for the purpose of simplifying the specification in order to assist in understanding one feature. However, this is not to say that a combination of these features is necessary, and it is entirely possible for a person skilled in the art to extract some of them as separate embodiments to understand them upon reading this description. That is, embodiments in this specification may also be understood as an integration of multiple secondary embodiments. While each secondary embodiment is satisfied by less than all of the features of a single foregoing disclosed embodiment.

Each patent, patent application, publication of patent application, and other materials, such as articles, books, specifications, publications, documents, articles, etc., cited herein are hereby incorporated by reference. The entire contents for all purposes, except for any prosecution file history associated therewith, may be any identical prosecution file history inconsistent or conflicting with this file, or any identical prosecution file history which may have a limiting influence on the broadest scope of the claims. Now or later in association with this document. For example, if there is any inconsistency or conflict between the description, definition, and/or use of terms associated with any of the incorporated materials, the terms in the present document shall prevail.

Finally, it is to be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present specification. Other modified embodiments are also within the scope of this specification. Accordingly, the embodiments disclosed herein are by way of example only and not limitation. Those skilled in the art can adopt alternative arrangements to implement the application in the specification based on the embodiments in the specification. Therefore, the embodiments of the present specification are not limited to the embodiments precisely described in the application.

Claims (14)

1. A waterproof assembly for a sound passing hole of an acoustic device, comprising:

a waterproof membrane configured to allow air molecules to pass through and block water molecules from passing through;

A buffer member including an adhesive surface having an adhesiveness to adhere the waterproof assembly to a target surface after being subjected to an external pressure; and

A support member between the waterproofing membrane and the buffering member to reduce the degree of wrinkling of the waterproofing membrane when the waterproofing assembly is assembled to an acoustic device,

Wherein the support member and the buffer member are respectively provided with a first through hole and a second through hole.

2. The waterproof assembly of claim 1, wherein the acoustic device comprises an acoustic sensor that is a speaker or microphone; and

At least a portion of the sound waves pass through the waterproofing membrane into or out of the acoustic device when the acoustic device is in operation.

3. The flashing assembly of claim 1, wherein the water-resistant member comprises a flexible member,

The waterproof membrane comprises a first waterproof surface and a second waterproof surface;

The support piece comprises a first support piece and a second support piece, the first support piece is connected with the first waterproof surface, and the second support piece is connected with the second waterproof surface;

The buffer piece includes first buffer piece and second buffer piece, first buffer piece includes first junction surface and first bonding face, first junction surface with first support piece is connected, second buffer piece includes second junction surface and second bonding face, the second junction surface with second support piece is connected.

4. The flashing assembly of claim 1, wherein the water-resistant member comprises a flexible member,

The waterproof membrane comprises a first waterproof surface and a second waterproof surface;

the buffer piece comprises a first connecting surface and a first bonding surface;

One side of the supporting piece is connected with the first waterproof surface, and the other side of the supporting piece is connected with the first connecting surface.

5. The flashing assembly of any of claims 1-4, wherein,

The support piece is adhered to the waterproof membrane through an adhesive layer; and

The thickness of the bonding layer ranges from 0.03mm to 0.15mm.

6. The flashing assembly of claim 1, further comprising a screen coupled to the cushioning member to enhance the flashing capability of the flashing assembly.

7. The waterproof assembly of claim 6, wherein the acoustic device comprises a housing, the sound through hole is disposed on the housing, and the gauze is disposed on a side of the waterproof assembly adjacent to the sound through hole.

8. The waterproof assembly according to claim 1, wherein the buffer member and the support member are circular, the first through hole and the second through hole are circular holes, and the diameters of the first through hole and the second through hole range from 0.8mm to 1.8mm; and

The outer diameters of the buffer piece and the supporting piece are in the range of 2.4 mm-4.6 mm.

9. The flashing assembly of any of claims 1-4, wherein the thickness of the flashing film is 0.10mm or less.

10. The flashing assembly of claim 1, wherein the cushioning member is an elastic member, wherein the cushioning member is the most elastically deformed member of the flashing assembly when the flashing assembly is assembled.

11. The flashing assembly of claim 1, wherein the cushioning member comprises a foam or acrylic.

12. The flashing assembly of claim 10 or 11, wherein the water-resistant member comprises a water-resistant member,

The thickness range of the buffer piece is more than or equal to 0.1mm.

13. The flashing assembly of any of claims 1-4, wherein the support has a thickness in the range of 0.1mm or less.

14. The flashing assembly of claim 1, wherein the total thickness of the flashing assembly ranges from 0.37mm to 0.61mm for installation in the acoustic device.