Acoustic apparatus

Abstract

Provided in the present application is an acoustic apparatus. The acoustic apparatus comprises: a housing, which comprises an outer wall, an inner wall and a sound hole, wherein the sound hole runs through the housing and communicates an inner space with an outer space of the housing; a waterproof assembly, which is arranged in the inner space and covers the sound hole, so as to prevent a liquid from entering the inner space from the outer space; an acoustic assembly, which comprises an acoustic sensor, wherein the acoustic assembly is arranged on the side of the waterproof assembly away from the sound hole and is connected to the waterproof assembly in a sealed manner, and the acoustic assembly and the housing form a first gap; a pressure-bearing device, which covers the acoustic assembly; and a sealing member, which prevents the liquid from entering the inner space via the first gap. Thus, the waterproof capability of the acoustic apparatus is improved.

Description

An acoustic device Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to an acoustic device. Background Art

[0002] The shell of an acoustic device is usually provided with a sound hole for sound to pass from the external environment to the inside of the acoustic device or from the inside of the acoustic device to the external environment. When the acoustic device is used outdoors or in a humid environment, water can easily enter the acoustic device through the sound hole on the shell. For example, in order to pick up ambient sound and ensure call quality, the microphone of a wireless headset must have a sound hole for air conduction sound transmission. When a user wears a wireless headset for underwater activities (such as swimming), water will enter the headset through the sound hole. When a wireless headset gets wet, it may not only affect the normal use function of its internal components, such as causing the microphone or speaker to fail, but may even cause a short circuit in the circuit of the motherboard or some components, resulting in the user being unable to use it normally.

[0003] Therefore, existing acoustic equipment needs to take certain measures to improve its waterproof protection performance, especially the waterproof protection of components such as microphones and speakers should be strengthened.

[0004] Summary of the Invention

[0005] To address the technical problem that existing acoustic devices lack waterproof protection, the present invention provides an acoustic device comprising a housing, a waterproof component, an acoustic component, a pressure-bearing device, and a sealing member. The housing comprises an outer wall, an inner wall, and a sound hole, wherein the sound hole penetrates the housing and connects the interior space of the housing with the exterior space; the waterproof component is disposed in the interior space and covers the sound hole to prevent liquid from entering the interior space from the exterior space; the acoustic component comprises an acoustic sensor, which is disposed on a side of the waterproof component away from the sound hole and is sealed to the waterproof component, forming a first gap between the acoustic component and the housing; the pressure-bearing device covers the acoustic component; and the sealing member seals the first gap to prevent liquid from entering the interior space through the first gap.

[0006] According to some embodiments of the present application, when the pressure-bearing device is subjected to an external force along a first direction, the force is transmitted to a target position of the waterproof component so that the waterproof component abuts against the inner wall.

[0007] According to some embodiments of the present application, in a second direction perpendicular to the first direction, an outer edge dimension of the pressure-bearing device is larger than an outer edge dimension of the acoustic sensor.

[0008] According to some embodiments of the present application, the waterproof component includes a waterproof membrane; a first adhesive portion located on one side of the waterproof membrane along the first direction; and a second adhesive portion located on the other side of the waterproof membrane along the first direction, wherein the first adhesive portion and the second adhesive portion are both annular, and the target position includes the annular area.

[0009] According to some embodiments of the present application, the first adhesive portion and the second adhesive portion are in a compressed state in the first direction.

[0010] According to some embodiments of the present application, the housing includes a first accommodating cavity, and the waterproof component is disposed in the first accommodating cavity.

[0011] According to some embodiments of the present application, the acoustic component further includes a circuit board, and the acoustic sensor is mechanically connected to the circuit board; the circuit board is installed at the opening end of the first accommodating cavity and forms the first gap with the opening end.

[0012] According to some embodiments of the present application, the pressure-bearing device is installed at the open end of the first accommodating cavity and forms a second gap with the open end, and the sealing member fills the second gap.

[0013] According to some embodiments of the present application, the pressure-bearing device includes a pressure-bearing shell and a second accommodating cavity, the acoustic sensor is located in the second accommodating cavity, and along the first direction, the pressure-bearing shell includes a first end face and a second end face, the second end face abuts the circuit board, and the first end face is away from the circuit board to withstand the external force.

[0014] According to some embodiments of the present application, the acoustic sensor includes at least one of a microphone or a speaker; and the pressure-bearing device is made of a hard material.

[0015] According to some embodiments of the present application, the circuit board includes at least one positioning hole; and at least one positioning protrusion is provided on the end surface surrounding the open end, corresponding one-to-one to the at least one positioning hole, and the at least one positioning protrusion passes through the at least one positioning hole.

[0016] According to some embodiments of the present application, the pressure-bearing device includes at least one positioning hole; and at least one positioning protrusion is provided on the inner wall, corresponding one-to-one to the at least one positioning hole, and the at least one positioning protrusion passes through the at least one positioning hole.

[0017] According to some embodiments of the present application, at least one of the positioning protrusions includes an enlarged end portion, the radial dimension of the end portion is larger than the aperture of the positioning hole, and the circuit board is fixed on the end surface.

[0018] According to some embodiments of the present application, there are no less than two positioning protrusions and they are evenly distributed around the first accommodating cavity.

[0019] According to some embodiments of the present application, the angle between the central axis of the sound hole and the first direction is not less than 30° and not greater than 60°; the sound hole includes a first opening on the outer wall and a second opening on the inner wall, the second opening is smaller than the first opening; and the average diameter of the sound hole is 0.6-1.2 mm.

[0020] According to some embodiments of the present application, the sealing member is obtained by providing a fluid sealing material into the first gap and then solidifying the fluid sealing material.

[0021] According to some embodiments of the present application, the fluid sealing material is sealant.

[0022] According to some embodiments of the present application, the acoustic sensor includes a first acoustic sensor and a second acoustic sensor, and the inner wall of the shell includes a shell bottom wall and a shell side wall: the shell bottom wall is provided with a third accommodating cavity to accommodate the first acoustic sensor; and the shell side wall is provided with a fourth accommodating cavity to accommodate the second acoustic sensor.

[0023] The acoustic device described in this application covers the second opening of the sound hole with a waterproof component that allows sound transmission and waterproofing, thereby preventing water and other liquids from entering the interior of the housing. A pressure-bearing device evenly applies external force to the target position of the waterproof component, preventing wrinkles in the waterproof component during installation. This achieves waterproof performance while also avoiding the adverse effects of the waterproof component on acoustic performance, resulting in an acoustic device that is both waterproof and has good acoustic performance. A sealant is used to seal the first gap between the acoustic component and the housing, further enhancing the waterproof performance.

[0024] Other functions of the waterproof assembly provided by the present application will be partially listed in the following description. The creative aspects of the acoustic device provided by the present application can be fully explained by practicing or using the methods, devices and combinations described in the following detailed examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] FIG1 shows a schematic diagram of an acoustic device provided according to some embodiments of the present application;

[0027] FIG2 shows a partial cross-sectional view of section A of the acoustic device shown in FIG1 ;

[0028] FIG3 shows a schematic structural diagram of various parts of an acoustic device provided according to some embodiments of the present application; and

[0029] FIG4 shows a schematic structural diagram of a pressure-bearing device provided according to some embodiments of the present application. DETAILED DESCRIPTION

[0030] The following description provides specific application scenarios and requirements of the present application, with the purpose of enabling those skilled in the art to make and use the content of this application. Various local modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of this application. Therefore, this application is not limited to the embodiments shown, but is intended to be of the widest scope consistent with the claims.

[0031] The terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. For example, unless the context clearly indicates otherwise, as used herein, the singular forms "a," "an," and "the" may also include the plural forms. When used in this application, the terms "comprise," "include," and / or "contain" are meant to refer to the presence of associated integers, steps, operations, elements, and / or components, but do not exclude the presence of one or more other features, integers, steps, operations, elements, components, and / or groups or the addition of other features, integers, steps, operations, elements, components, and / or groups in the system / method.

[0032] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0033] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0034] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0035] In this application, 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. In other words, X may include only any one of A, B, and C, or any combination of A, B, and C, as well as other possible contents / elements. Any combination of A, B, and C may be A, B, C, AB, AC, BC, or ABC.

[0036] In this application, unless explicitly stated otherwise, the association relationship between structures can be a direct association relationship or an indirect association relationship. For example, when describing "A is connected to B", unless it is explicitly stated that A is directly connected to B, it should be understood that A can be directly connected to B or indirectly connected to B; for another example, when describing "A is above B", unless it is explicitly stated that A is directly above B (AB are adjacent and A is above B), it should be understood that A can be directly above B or indirectly above B (AB is separated by other elements and A is above B). And so on.

[0037] With the following description in mind, these and other features of the present application, as well as the operation and function of the associated elements of the structure, and the economical assembly and manufacture of the components, can be significantly improved. Reference is made to the accompanying drawings, all of which form a part of this application. However, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of this application. It should also be understood that the drawings are not drawn to scale.

[0038] The present application is described in detail below through specific embodiments:

[0039] The shell of an acoustic device is usually provided with a sound hole for sound to pass from the external environment to the inside of the acoustic device or from the inside of the acoustic device to the external environment. For example, in order to ensure the quality of calls, wireless headphones with a call function will leave a sound hole for the microphone to pick up sound and receive sound transmitted through the air. In order to prevent liquids such as water from entering the acoustic device after the acoustic device is used in the wild or in a humid environment, and to ensure that the acoustic device can still work normally, the sound hole of the acoustic device needs to be treated with liquid-proof treatment. The present application provides an acoustic device with a liquid-proof treatment on the sound hole to enhance its waterproof ability. The liquids in this specification include but are not limited to water, oil, sweat and other liquids. For the convenience of description, water is used as an example below.

[0040] The acoustic device may be an electronic device with a sound-producing function. The acoustic device may include headphones, mobile phones, computers, recorders, and other electronic devices. For ease of illustration, the following description uses headphones as an example. It should be noted that those skilled in the art will appreciate that other acoustic devices are also within the scope of protection of this specification.

[0041] The headset can be any type of headset. For example, the headset can be a wired headset or a wireless headset. The headset can be an air conduction headset, a bone conduction headset, or a combined bone and air conduction headset. In some embodiments, the headset can also include a data storage unit. In this case, the headset can be independent of an external media player and can play audio data stored in the built-in data storage unit even when not transmitting signals to an external media player. This specification does not limit the type of headset.

[0042] As an example, FIG1 shows a schematic diagram of an acoustic device 01 provided according to some embodiments of the present application, and FIG2 shows a partial cross-sectional view of section A of the acoustic device 01 shown in FIG1 . FIG1 shows a schematic structural diagram of the acoustic device 01 when it is a (wireless) headset. The acoustic device 01 may include a housing 100, a waterproof component 200, an acoustic component 300, a pressure-bearing device 500, and a sealing member 400 (not shown in FIG1 and FIG2 ).

[0043] The shell 100 can serve as a mounting base for the acoustic device 01. Referring to Figure 2, other components of the acoustic device 01 (such as the waterproof component 200, the acoustic component 300, the pressure-bearing device 500, etc.) can be installed with the shell 100 as a carrier. The shell 100 can be a thin-walled structure. The shell 100 can include an outer wall 101 and an inner wall 102. The outer wall 101 can be the appearance surface of the acoustic device 01 that is finally presented to the user. The outer wall 101 can be a smooth curved surface. The outer wall 101 and the inner wall 102 can be respectively provided with grooves or protrusions to facilitate assembly. In some embodiments, the shell 100 can include two parts. After the other components are assembled, the two parts are snapped together to form the functional components of the acoustic device 01 as shown in part A of Figure 1. The shape of the shell 100 can be any shape, for example, it can be a runway shape (rounded rectangle) or a circle. When the acoustic device 01 is a wireless headset, the shell 100 can be a shape that conforms to the contour of the human ear, so that the wireless headset can be worn more firmly on the user's ear. The housing 100 may be made of any material, such as metal, plastic, polymer, etc. The present application does not limit the shape and material of the housing 100 .

[0044] In some embodiments, the housing 100 may include a first accommodating chamber 110, so that other components can be installed in the first accommodating chamber 110 to protect and fix the other components. The first accommodating chamber 110 can accommodate part or all of the waterproof component 200, the acoustic component 300, and the pressure-bearing device 500. For example, the waterproof component 200 can be entirely disposed in the first accommodating chamber 110. In some embodiments, a groove can be provided on the inner wall 102 of the housing 200 to form the first accommodating chamber 110. In some embodiments, a wall panel can be provided on the inner wall 102 of the housing, and the wall panel and part of the inner wall 102 of the housing enclose the first accommodating chamber 110.

[0045] As shown in Figure 2, the inner wall 102 of the shell 100 may include a bottom wall 103. As shown in Figure 1, the bottom wall 103 may be the inner wall surface of the bottom wall 103 shown in the dotted box of the acoustic device 01 shown in Figure 1. The bottom wall may be a thin-walled plate-like structure. The bottom wall 103 may be a plane or a curved surface. When the bottom wall 103 is a curved surface, the center of curvature of the bottom wall 103 may be set away from the first accommodating cavity 110 so as to provide the user with a better experience when wearing it. Furthermore, a third accommodating cavity 110-1 is also provided on the bottom wall 103. The third accommodating cavity 110-1 can accommodate components in the acoustic device 01 that need to be separately protected. For example, the third accommodating cavity 110-1 can accommodate the acoustic component 300.

[0046] The inner wall 102 of the shell 100 may also include a side wall 104. As shown in Figure 1, the side wall 104 may be the inner wall surface corresponding to the side wall shown in the dotted box. The side wall 104 is located on the side of the shell 100 and may be a thin-walled plate-like structure. The side wall 104 may be a plane or a curved surface. When the side wall 104 is a curved surface, the center of curvature of the side wall 104 may be set away from the first accommodating cavity 110 so as to facilitate positioning when the shell 100 consists of two parts and needs to be installed. Furthermore, a fourth accommodating cavity 110-2 is provided on the side wall 104. The fourth accommodating cavity 110-2 may accommodate components in the acoustic device 01 that require separate protection. For example, the fourth accommodating cavity 110-2 may accommodate the acoustic component 300.

[0047] The shell 100 may include a sound hole 120, which allows external sound waves to enter the shell 100 and be collected by the acoustic component 300, or the sound waves emitted by the acoustic component 300 can also be transmitted to the external environment through the sound hole 120. The sound hole 120 runs through the shell 100, connecting the internal space of the shell 100 and the external space. As an example, Figure 3 shows a schematic diagram of a partial structure of the shell 100 of an acoustic device 01 provided according to some embodiments of the present application. As can be seen from Figure 3, the sound hole 120 runs through the shell 100. The sound hole 120 may include a first opening 121 on the outer wall 101 and a second opening 122 on the inner wall 102 (here the first opening 121 and the second opening 122 are circular as an example). In some embodiments, the aperture of the second opening 122 is smaller than the aperture of the first opening 121, where the aperture refers to the diameter of the opening on the wall. In other words, the sound hole 120 can be in the shape of a horn with a larger outside and a smaller inside. By designing the sound hole 120 in a horn shape, the user can easily remove foreign matter, such as solids or liquids, that has entered the sound hole 120. Furthermore, this facilitates smooth demolding during the processing of the sound hole 120. The shape of the sound hole 120 can be circular, oval, square, rectangular, or any other shape, and this application does not limit the shape of the sound hole 120. The sound hole 120 can be located in the bottom wall 103 or the side wall 104. For ease of illustration, the following description uses the bottom wall 103 as an example.

[0048] In some embodiments, the central axis of the sound hole 120 is perpendicular to the inner wall 102 of the shell 100 where the sound hole is provided, that is, the central axis of the sound hole 120 is perpendicular to the bottom wall 103 of the shell 100 where the sound hole is provided. Since the side wall and / or bottom wall 103 of the shell 100 may be a plane or a curved surface, the vertical mentioned in this specification refers to the direction of the cross-section of the inner wall 102 or the outer wall 101 at the location of the sound hole 120. As shown in Figure 3, the sound hole 120 passes through the shell 100 vertically downward perpendicularly to the inner wall 102, that is, the sound hole 120 passes through the shell 100 vertically downward perpendicularly to the bottom wall 103. In some embodiments, the central axis of the sound hole 120 may not be perpendicular to the inner wall 102 of the shell where the sound hole 120 is provided. The value range of the tilt angle can be [30, 90). Among them, when the inclination angle is [60, 90), while ensuring a certain degree of inclination, the processing difficulty of the sound hole 133 is also reduced. When the inclination angle is [30, 60], ensuring that the inclination angle is within this range can further enhance the ability to prevent water from entering the interior of the shell 10 through the sound hole 133. In some application scenarios, such as swimming, by tilting the sound hole 133, when the acoustic device 01 is subjected to dynamic water pressure, the water flow will not directly flow into the sound hole 133, thereby enhancing the waterproof ability of the acoustic device 01 under dynamic water pressure. In some embodiments, the central axis of the sound hole 133 can be set vertically relative to the bottom wall 132 to reduce the processing difficulty of the sound hole 133. The shape of the sound hole 133 can be any shape such as circular, elliptical, square, rectangular, etc. This specification does not limit the shape of the sound hole 133.

[0049] As shown in Figure 2, the sound hole 120 can extend through the housing 100 at an angle relative to the inner wall 102. The central axis of the sound hole 120 can be a line connecting the center of the second opening 122 of the sound hole 120 on the inner wall 102 of the housing 100 and the center of the first opening 121 on the outer wall 101 of the housing 100. It should be noted that this verticality can be essentially vertical or substantially vertical. This means that a certain degree of tolerance is acceptable. The magnitude of this tolerance depends on the precision of the sound hole 120 and the housing 100.

[0050] The acoustic component 300 can be arranged between the pressure-bearing device 500 and the waterproof component 200, with one end of the acoustic component 300 connected to the pressure-bearing device 500 and the other end connected to the waterproof component 200. As an example, the acoustic component 300 can be sealed and connected to the waterproof component 200. For example, the sealing member 400 can be used to fill the connection gap between the acoustic component 300 and the waterproof component 200 to achieve a sealing effect. In another case, the sealing member 400 can be used to fill the connection gap between the side walls of the acoustic component 300 and the waterproof component 200 to achieve a sealing effect, and the bonding surfaces of the acoustic component 300 and the waterproof component 200 are sealed by the double-sided adhesive of the acoustic component and the colloid on the buffer layer of the waterproof component 200.

[0051] The acoustic assembly 300 is used to collect or emit sound and should be protected from water. For example, the acoustic assembly 300 can be positioned on a side of the waterproof assembly 200 away from the sound hole 120. The waterproof assembly 200 prevents water from entering the interior of the housing, thus protecting the acoustic assembly 200 from water.

[0052] Referring to Figure 3, the acoustic component 300 can be at least partially disposed in the first accommodating cavity 110. The acoustic component 300 and the shell 100 form a first gap T1, and the seal 400 can seal the first gap T1. The seal 400 filled in the first gap T1 can not only fix the acoustic component 300 in the first accommodating cavity 110, but also prevent the liquid from entering the interior of the shell 100 through the first gap T1, further enhancing the waterproof effect. In some embodiments, the seal 400 can be obtained by providing a fluid sealing material to the first gap T1 and then curing it. It is worth noting that Figure 3 is only a schematic diagram of the position of the cured sealing material. The fluid sealing material can completely fill all gaps by flowing, so the components / structures connected using the seal 400 are sealed. Among them, the fluid sealing material can be a sealant. For example, the sealant can be ultraviolet ray glue (UV glue for short), silicone, hot melt glue, etc. For example, UV glue can be injected into the first gap T1. After the UV glue cures, the first gap T1 is sealed, preventing liquid from entering the internal space through the first gap. The acoustic assembly 300 can include an acoustic sensor 310. The acoustic sensor 310 can receive or emit sound. As an example, the acoustic sensor 310 can include at least one of a microphone or a speaker.

[0053] In some embodiments, the number of acoustic sensors 310 in the acoustic assembly 300 may be one. In some embodiments, the number of acoustic sensors 310 in the acoustic assembly 300 may be multiple to achieve more functions. For example, when the acoustic sensor 310 is a microphone, two microphones can be provided in the headset to achieve a noise reduction effect. One microphone can be a regular microphone used by the user during a call to collect the human voice. The other microphone can have a noise collection function to facilitate the collection of ambient noise. As an example, Figure 2 shows a schematic diagram of the structure of the acoustic assembly 300 provided according to an embodiment of the present application, including two acoustic sensors 310. Referring to Figure 2, the acoustic sensor 310 may include a first acoustic sensor 310-1 and a second acoustic sensor 310-2. The first acoustic sensor 310-1 and the second acoustic sensor 310-2 may be connected using a circuit board 320, that is, the circuit board 320 as a whole is simultaneously connected to the two acoustic sensors 310. In some embodiments, the first acoustic sensor 310-1 and the second acoustic sensor 310-2 may also be connected to different circuit boards. At this time, as shown in FIG. 2 , the third accommodating cavity 110 - 1 may be used to accommodate the first acoustic sensor 310 - 1 , and the fourth accommodating cavity 110 - 2 may be used to accommodate the second acoustic sensor 310 - 2 .

[0054] Referring to Figure 3, the acoustic sensor 310 may include a hole 311. For example, the acoustic sensor 310 may include at least one microphone, and the microphone is provided with a hole 311 for receiving ambient sound through the waterproof component 200. The acoustic sensor 310 may also include at least one speaker. The speaker includes a hole 311. The speaker can emit a target sound when in operation. The target sound can be output from the hole 311 and then transmitted out of the acoustic device 01 through the waterproof component 200. The waterproof component 200 covers the sound hole 120 to prevent liquid from contacting specific components in the acoustic component 300 through the waterproof component 200. Specifically, the waterproof component 200 prevents liquid from contacting the acoustic sensor 310 through the waterproof component 200, and prevents liquid from entering the interior of the acoustic sensor 310 through the hole 311, causing damage to the acoustic sensor 310 and affecting the acoustic performance of the acoustic device 01.

[0055] The acoustic assembly 300 may also include a circuit board 320. The acoustic sensor 310 is connected to the circuit board 320. For example, the acoustic sensor 310 may be mechanically connected to the circuit board 320 using adhesive bonding, surface mount (SMT) mounting, manual soldering, seam connection, riveting, and the like. For example, the acoustic sensor 310 may be secured to the circuit board 320 by soldering. Alternatively, the acoustic sensor 310 may be bonded to the circuit board 320 using glue.

[0056] The circuit board 320 can be located between the acoustic sensor 310 and the waterproof assembly 200. As shown in Figure 3, the circuit board 320 can be plate-shaped and can rest against the end surface of the pressure-bearing device 500 facing the waterproof assembly 200. The circuit board 320 is mounted at the open end of the first accommodating cavity 110, forming the first gap T1 with the open end. The circuit board 320 is a chip integrated circuit that integrates the functions of the acoustic device 01 and can control the acoustic sensor 310. In some embodiments, the circuit board includes a radio frequency unit for receiving and transmitting signals, such as Bluetooth, NFC, Wi-Fi, and other communication components, to enable communication with external media players. In some embodiments, the circuit board includes a CPU unit for data processing and a DSP unit for audio decoding. In some embodiments, the circuit board also includes a data storage unit for storing audio data. The circuit board can be used for short-range wireless communication, audio transmission, data transmission, data storage, location services, device networks, and the like. This specification does not limit the type of circuit board. Specifically, the circuit board can include a flexible printed circuit board (FPC), a rigid printed circuit board (PCB), and a rigid-flex PCB. That is, the circuit board can be any circuit or processor capable of performing one or more functions, or any combination thereof.

[0057] In some embodiments, one of the end surfaces of the circuit board 320 and the open end of the first accommodating chamber 110 may include a positioning hole 530, and the other may include a positioning protrusion 132. In some embodiments, the positioning hole 530 may be provided on the circuit board 320 to facilitate the fixing of the circuit board 320. Specifically, the circuit board 320 includes at least one positioning hole 530 to facilitate the positioning and installation of the circuit board 320. Positioning protrusions 130 corresponding to the aforementioned positioning holes 530 are provided on the end surface surrounding the open end of the first accommodating chamber 110, with each positioning protrusion 130 passing through its corresponding positioning hole 530. In some embodiments, the number of the aforementioned positioning protrusions 132 may be no less than two and evenly distributed around the first accommodating chamber 110. The positioning protrusions may include an enlarged end portion 132, wherein the radial dimension of the end portion 132 is larger than the aperture of the positioning hole 530, so as to secure the circuit board 320 to the end surface of the open end. In this way, the rigid connection between the positioning holes 530 and the positioning protrusions 130 allows the circuit board 320 to be positioned, further securing the circuit board 320 to the inner wall of the housing 100. This arrangement eliminates the need to apply or inject sealant onto the circuit board 320 to secure it to the housing 100, thus avoiding assembly failures caused by excessive sealant overflow and improving assembly efficiency. It should be noted that the number of positioning holes 530 can be one or more, and the number of positioning protrusions 130 can also be one or more, without limitation herein.

[0058] As previously described, one end of the acoustic assembly 300 is connected to the waterproof assembly 200. For example, the acoustic assembly 300 can be bonded to the waterproof assembly 200 via a bonding area. In some embodiments, a pressure jig can be used to apply pressure F to the acoustic assembly 300, ensuring a secure bond between the circuit board 320 and the bonding area of ​​the waterproof assembly 200. In some embodiments, the circuit board 320 can also be partially or entirely reinforced, increasing the thickness or hardness of a portion of the circuit board 320. For example, a steel plate or a PI reinforcement sheet can be used to reinforce the FPC. PI stands for polyimide, an engineering plastic with excellent mechanical properties, characterized by light weight, thinness, and good flexibility. The circuit board 320 can include a hole 321. The second opening 122 of the sound hole 120 on the inner wall of the housing 100, hole 321, and hole 311 can be coaxial to minimize the path for sound to enter or exit the acoustic device 01, thereby reducing energy consumption. In some embodiments, the diameter of hole 311 can be smaller than or equal to the diameter of hole 321, and the diameter of hole 321 can be smaller than the diameter of sound hole 120. Designing a larger diameter for sound hole 120 can increase sound pressure. For example, the average diameter of sound hole 120 can be 0.6 mm to 1.2 mm, the diameter of hole 321 can be 0.5 mm, and the diameter of hole 311 can be 0.25 mm.

[0059] As mentioned above, the sound hole 120 passes through the housing 100 and connects the interior space of the housing 100 with the exterior space. The waterproof assembly 200 can be disposed in the interior space and cover the sound hole 120 to prevent liquid from entering the interior space from the exterior space.

[0060] As shown in Figure 3, in some embodiments, waterproof assembly 200 may further include a waterproof membrane 230, a first adhesive portion 210, and a second adhesive portion 220. The first adhesive portion 210 is located on one side of the waterproof membrane 230 along a first direction shown in Figure 3; the second adhesive portion 220 is located on the other side of the waterproof membrane 230 along the first direction. According to some embodiments of the present application, both the first adhesive portion 210 and the second adhesive portion 220 are annular, and the target location includes the annular area.

[0061] 3 , the waterproof component 200 can be covered on the second opening 122 of the sound hole 120. The waterproof component 200 allows sound waves to enter the internal space of the shell 100 from the external space of the shell 100, while preventing liquid from entering the internal space of the shell 100 from the external space of the shell 100. The acoustic component 400 is in the internal space of the waterproof component 200 away from the sound hole 120, so it will not directly contact water, thereby ensuring the acoustic performance of the acoustic component 400. As an example, the liquid can be water. Of course, in addition to water, the liquid can also be other liquid substances, for example, the liquid can be juice, liquid glue, and so on.

[0062] In some embodiments, a pressure jig can be used to apply a preset pressure F to the waterproof assembly 200 along a first direction, so that the waterproof assembly 200 adheres to the outer edge of the second opening 122. As an example, if the waterproof assembly 200 is sheet-shaped, the first direction can be the normal direction of the waterproof assembly 200, that is, the preset pressure F is applied to the waterproof assembly 200 perpendicular to the surface of the waterproof assembly 200. This can prevent the waterproof assembly 200 from being subjected to lateral forces and thus prevent the waterproof assembly 200 from wrinkling, which would affect its waterproof performance.

[0063] As previously described, the acoustic component 300 can be connected to the waterproof component 200 by bonding to the adhesive area of ​​the waterproof component 200. For example, the acoustic component 300 can be connected to the waterproof component 200 via the second adhesive portion 220. After the waterproof component 200 and the acoustic component 300 are installed in the first accommodating cavity 110, the waterproof component 200 can be connected to the first accommodating cavity 100 via the first adhesive portion 210. At this time, the first adhesive portion 210 and the second adhesive portion 220 are in a compressed state in the first direction. That is, when the acoustic device 01 is in normal working condition, the first adhesive portion 210 and the second adhesive portion 220 are in a compressed state in the first direction.

[0064] The waterproof membrane 230 can be a thin film made of special materials. Sound waves can pass through the waterproof membrane 230, but liquids (such as water) cannot pass through the waterproof membrane 230. As an example, the waterproof membrane 230 can be made of a material with an equivalent microporous structure. The characteristic of the waterproof membrane 230 made of an equivalent microporous structure material is that air molecules can pass through the equivalent microporous structure, but water molecules cannot pass through the equivalent microporous structure. Among them, the equivalent microporous structure can be considered to be an arbitrary structure that can achieve the effect that can be achieved using micropores, but does not have regular micropores. Furthermore, the surface tension of the waterproof membrane 230 can cause water droplets to form spheres on the surface of the membrane, thereby reducing the contact area between water molecules and the waterproof membrane 230, thereby further enhancing the waterproof effect of the waterproof membrane 230.

[0065] The first adhesive portion 210 is located along the first direction on a side of the waterproof membrane 230 near the sound hole 120. The first adhesive portion 210 is adhesive. In some embodiments, the first adhesive portion 210 can be annular and surround the second opening 122. One side of the first adhesive portion 210 can abut against the edge of the waterproof membrane 230, while the other side abuts against the outer edge of the second opening 122. The first adhesive portion 210 can have a central hole 211. The central hole 211 can be cylindrical, so that the waterproof membrane 230 can be evenly subjected to the water pressure flowing from the sound hole 120. This prevents the waterproof membrane 230 from being damaged by uneven water pressure, which could reduce or even render the waterproofing effectiveness of the waterproof assembly 200 ineffective. The central hole 211 can also be any shape, such as an ellipse, square, or rectangle, and this application does not limit the shape of the central hole 211. In some embodiments, the shape of the central hole 211 can be adapted to the shape of the sound hole 120. The aperture of the sound hole 120 can be smaller than or equal to the aperture of the center hole 211, so that the waterproof membrane 230 has a larger area that can withstand water pressure and is less likely to be damaged. For example, the aperture of the center hole 211 can be 0.8mm-1.8mm. For example, the center hole 211 can be 0.8mm, 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, etc. and other values ​​between any two values. The average diameter of the sound hole 120 can be 0.6mm-1.2mm. For example, the aperture of the sound hole 120 can be 0.6mm, 0.8mm, 1.0mm, 1.2mm, etc. and other values ​​between any two values. The first adhesive portion 210 can also have elasticity. The first adhesive portion 210 can evenly disperse high-speed physical pressure (impact energy) by virtue of its elasticity. Since the first adhesive portion 210 is elastic, it can protect the waterproof membrane 230 from wrinkling due to a large impact and thus affecting its acoustic performance when installing the waterproof assembly 200. For example, the first adhesive portion 210 can include foam glue or elastic acrylic glue.

[0066] The second adhesive portion 220 is located along the first direction on the other side of the waterproof membrane 230 away from the sound hole 120. In some embodiments, the second adhesive portion 220 can be annular. A central hole 221 can be formed in the second adhesive portion 220. Sound waves passing through the waterproof membrane 230 are collected by the acoustic component through the central hole 221. The second adhesive portion 220 is adhesive. One side of the second adhesive portion 220 can be bonded to the edge of the waterproof membrane 230 away from the sound hole 120, and the other side can be bonded to the acoustic component 200. The second adhesive portion 220 can also be elastic. Its elasticity can evenly distribute high-speed physical pressure (impact energy). The elasticity of the second adhesive portion 220 protects the waterproof membrane 230 from wrinkling due to large impacts when the installer installs the waterproof component 200, thereby preventing it from affecting its acoustic performance. In some embodiments, the material of the second adhesive portion 220 may be foam glue, foam + acrylic glue (acrylate adhesive), or acrylic glue (acrylate adhesive).

[0067] In some embodiments, the waterproof assembly 200 may further include a gauze 240. As shown in Figure 3, the gauze 240 may be positioned on the side of the waterproof assembly 200 away from the sound hole 120. When the waterproof membrane 230 encounters high water pressure, it may deform. In this case, the gauze 240 can act as a support or barrier behind the waterproof membrane 230, thereby preventing excessive deformation of the waterproof membrane 230 and thereby changing the acoustic properties of the waterproof membrane 230, thereby increasing the waterproof capability of the waterproof membrane 230. In this case, the second adhesive portion 220 can be bonded to the gauze 240. The side of the gauze 240 facing the acoustic assembly 300 can be bonded to the acoustic assembly 300. In some embodiments, the gauze 240 can also be positioned on the side of the waterproof assembly 200 closer to the sound hole 120 (not shown). When a user wears the headphones for underwater activities, water may enter the acoustic device 01 through the sound hole 120, and the water will first flow through the gauze 240. The gauze 240 can disperse the water flow through the mesh, so that the impact force on the waterproof membrane 230 can be more dispersed, and the force on each part of the waterproof membrane 230 is relatively small, and the waterproof membrane 230 is not easily deformed, thereby increasing the waterproof ability of the waterproof membrane 230 (waterproof component 200).

[0068] To minimize the impact on acoustic performance, the waterproof membrane 230 is typically very thin. Furthermore, due to the inherent material properties of the waterproof membrane 230, any uneven external force can cause wrinkles in the membrane 230. Wrinkles in the membrane 230 can affect the acoustic performance of the acoustic device 01. This places stringent requirements on the installation of the waterproof membrane 230—wrinkles must be avoided during installation.

[0069] In some embodiments, when installing the waterproof assembly 200, the waterproof assembly 200 can be first placed in the first accommodating cavity 110 and then stacked with the acoustic assembly 300. A pressure jig is used to apply pressure F to the acoustic sensor 310 in the acoustic assembly 300 along the normal direction (i.e., the first direction) of the waterproof assembly 200. The circuit board 320 connected to the acoustic sensor 310 transmits the pressure F downward to the waterproof assembly 200, compressing the waterproof assembly 200. At this time, one side of the waterproof assembly 200 is tightly bonded to the circuit board 320, and the other side is tightly bonded to the edge of the second opening 122.

[0070] During the installation process, the pressure F applied by the pressure jig is concentrated on the upper surface of the acoustic sensor 310, then transferred downward from the acoustic sensor 310 to the circuit board 320 and then applied to the outer edge of the waterproof assembly 200. Typically, the acoustic sensor 310 is smaller than the circuit board 320 and the waterproof assembly 200. This means that the area of ​​the acoustic assembly 300 bearing the pressure F from the pressure jig is smaller, and the force is ultimately transferred to the edge of the waterproof assembly 200, where the area bearing the pressure is larger than that of the acoustic assembly 300. During this process, if the acoustic assembly 300 experiences even a slight deformation, this deformation can directly lead to uneven pressure applied to the edge of the waterproof assembly 200, causing wrinkles in the waterproof membrane 230. For example, this can directly cause uneven force on the first and second adhesive portions 210, 220 of the waterproof assembly 200, affecting the waterproof membrane 230 located between the first and second adhesive portions 210, 220 and causing wrinkles and deformation of the waterproof membrane 230. Especially when the circuit board 320 is a flexible circuit board, when pressure is applied to the acoustic sensor 310 , the edge of the flexible circuit board may be easily deformed.

[0071] To prevent the above situation, the acoustic device 01 provided in the present application also includes a pressure-bearing device 500. The pressure-bearing device 500 covers the acoustic component 300. When the pressure-bearing device 500 is subjected to an external force along a first direction, the pressure-bearing device 500 transmits the force to the target position of the waterproof component 200, so that the waterproof component 200 and the inner wall 102 abut each other. For example, as shown in FIG3 , a pressure F is applied to the pressure-bearing device 500 along a first direction, and the pressure-bearing device 500 can evenly apply the pressure F to the target position of the waterproof component 200. As an example, the target position includes the outer edge of the waterproof component 200. By evenly transmitting the pressure F through the pressure-bearing device 500, wrinkles of the waterproof component 200 can be prevented. In some embodiments, the pressure-bearing device 500 is made of a hard material. The hard material can include hard plastic and hard alloy. The use of a hard material for the pressure-bearing device 500 can prevent the pressure-bearing device from deforming when subjected to the pressure F, thereby preventing uneven force applied to the target position of the acoustic component 300. The first direction is the first direction shown in FIG3 .

[0072] Referring to Figure 3, the pressure-bearing device 500 can be cylindrical. The pressure-bearing device 500 can include a second accommodating chamber 520. The acoustic sensor 310 can be located within the second accommodating chamber 520. The pressure-bearing device can be in the shape of a hat, mounted on the acoustic assembly 300. For example, the acoustic sensor 310 can be installed within the second accommodating chamber 520, thereby saving space. In some embodiments, in a second direction perpendicular to the first direction, the outer edge of the pressure-bearing device 500 is larger than the outer edge of the acoustic sensor 310. In some embodiments, in the second direction, the outer edge of the pressure-bearing device 500 is larger than the outer edge of the waterproof assembly 200. As described above, the first direction refers to the normal direction of the waterproof membrane, and the second direction is perpendicular to the first direction, for example, the second direction is parallel to the waterproof membrane 230. With this arrangement, when the pressure jig applies pressure, the pressure-bearing device 500, with its larger outer edge, receives the pressure and evenly transfers it to the acoustic assembly 300, preventing deformation of the acoustic assembly 300 from affecting the waterproof membrane.

[0073] In some embodiments, as shown in FIG3 , a pressure-bearing device 500 can be installed at the open end of the first accommodating chamber 110 . The pressure-bearing device 500 and the port 111 at the open end form a second gap T2, and the seal 400 can further fill the second gap T2. As an example, the waterproof component 200 can be placed in the first accommodating chamber 110 first, and then the acoustic component 300 and the pressure-bearing device 500 are stacked in sequence. A pressure jig is used to apply pressure F to the pressure-bearing device 500, so that the first adhesive portion 210 and the second adhesive portion 220 of the waterproof component 200 are compressed. At this time, the pressure F is maintained for a period of time, and a seal 400 such as a fluid sealant is applied or filled to the port 111. The seal 400 can enter the first gap T1 through the second gap T2. In other words, the seal 400 can simultaneously seal the first gap T1 and the second gap T2, thereby preventing water from entering the second gap T2 from the first gap T1 and ultimately entering the internal space of the housing 100.

[0074] Under the action of the force F applied by the pressure jig, one end of the pressure-bearing device 500 (the end of the pressure-bearing device 500 shown in the figure that is closer to the sound hole 120) enters the first accommodating chamber 110 from the port 111 along the first direction. If the second gap T2 is too large, the pressure-bearing device 500 may shake laterally, causing wrinkles in the waterproof component 200. As an example, the second gap T2 is not greater than a preset value (such as 0.5 mm) to limit the positional deviation of the pressure-bearing device 500 along the second direction. The second direction is a direction perpendicular to the first direction. It should be noted that the second direction can be any direction perpendicular to the first direction. The second direction shown in Figure 3 is only an exemplary display. Those skilled in the art should know that other directions that are different from the second direction in Figure 3 and perpendicular to the first direction are within the scope of protection of the specification. For example, the second direction can be a direction opposite to the second direction shown in Figure 3 and perpendicular to the first direction.

[0075] In some embodiments, the pressure-bearing device 500 further includes a pressure-bearing shell 510. The pressure-bearing shell 510 may include a first end face 511 and a second end face 512 along a first direction, wherein the first end face 511 is away from the circuit board 320 to withstand the external force F. In some embodiments, after assembly is completed, the first end face 511 may be completely within the first accommodating cavity 110, that is, the end face of the first end face 511 is lower than the port 111 of the first accommodating cavity 110, or is flush with the port 111. In some embodiments, after assembly is completed, the end face of the first end face 511 is higher than the port 111 at the open end of the first accommodating cavity 110. The second end face 512 may abut against the circuit board 320. As an example, the second end face 512 and the circuit board 320 may be sealed and connected.

[0076] In the embodiment shown in FIG3 , a pressure jig applies pressure F along a first direction to the middle portion of the first end surface 511 of the pressure-bearing device 500. The pressure-bearing device 500 first evenly transmits the pressure F to various parts of the pressure-bearing device 500, particularly the second end surface 512 abutting the circuit board 320. The pressure F is then evenly transmitted to the circuit board 320 and ultimately to the outer edge of the waterproof assembly 200. After the waterproof assembly 200 reaches the desired compression, the pressure jig is maintained stationary, and a fluid sealant is applied or injected between the pressure-bearing device 500 and the port 111 of the first accommodating chamber 110 to seal the gap between the pressure-bearing device 500 and the first accommodating chamber 110, i.e., the second gap T2. This also serves to secure the pressure-bearing device 500. In some embodiments, to enhance the seal and secure the pressure-bearing device 500, the sealant may be applied to the first end surface 511 of the pressure-bearing device 500.

[0077] As an example, FIG4 shows a schematic structural diagram of another pressure-bearing device 500 provided according to an embodiment of the present application.

[0078] Referring to Figure 4 , in some embodiments, the pressure-bearing device 500 can be shaped like a hat with a brim. The pressure-bearing device 500 can include a main body and an edge portion. The main body is located at the center of the pressure-bearing device and is used to withstand the pressure of the pressure fixture. The edge portion is located on the periphery of the main body and surrounds the main body in an annular shape, similar to the brim of a hat. The annular shape can be a circular ring, a square ring, a triangular ring, or other shapes, and this application is not limited thereto.

[0079] In some embodiments, one of the pressure-bearing device 500 and the inner wall 102 of the housing 100 may include a positioning hole 530, and the other may include a positioning protrusion 132, so as to achieve the purpose of fixing the pressure-bearing device 500 on the inner wall 102 of the housing 100. The positioning hole 530 may be provided on the pressure-bearing device 500, and the positioning protrusion 132 may be provided on the inner wall 102 of the housing 100. Conversely, the positioning hole 530 may also be provided on the inner wall 102 of the housing 100, and the positioning protrusion 132 may be provided on the pressure-bearing device 500. For ease of illustration, the following description uses the example of the positioning hole 530 being provided on the pressure-bearing device 500 and the positioning protrusion 132 being provided on the inner wall 102 of the housing 100. Those skilled in the art should understand that other situations are also within the scope of protection of this specification.

[0080] Specifically, referring to Figure 4, the pressure-bearing device 500 includes a positioning hole 530. A positioning protrusion 130 is provided on the inner wall 102 of the housing 100. The positioning hole 530 and the positioning protrusion 130 match. The matching can be that the shapes and sizes of the mating surfaces of the positioning hole 530 and the positioning protrusion 130 match. When the pressure-bearing device 500 is matched with the inner wall 102, the positioning protrusion 130 passes through the positioning hole 530, and the positioning hole 530 acts as a guide so that the positioning protrusion 130 can be installed along the positioning hole 530. The cross-sectional shape of the positioning hole 530 can be triangular, rectangular, dovetail, circular, etc. The number of positioning holes 530 can be one or more, and the number of positioning protrusions 130 can also be one or more. In some embodiments, the number of positioning protrusions 132 can be no less than 2 and evenly surround the first accommodating cavity 110.

[0081] In addition, the positioning protrusion 132 includes an enlarged end portion 132 to fix the pressure-bearing device 500 on the inner wall 102 of the shell 100. The radial dimension of the end portion 132 is larger than the aperture of the positioning hole 530 to fix the pressure-bearing device 500 on the inner wall 102. In this way, the positioning of the pressure-bearing device 500 can be achieved through the hard connection between the positioning hole 530 and the positioning protrusion 130, and the pressure-bearing device 500 can be further fixed to the inner wall of the shell 100. With such a configuration, the pressure-bearing device 500 can be fixed to the shell without applying or injecting sealant onto the first end face 511 of the pressure-bearing device 500, which can avoid assembly failure caused by excessive glue overflow when the pressure jig is glued to the pressure-bearing device, thereby improving assembly efficiency.

[0082] Furthermore, the required compression amount of the waterproof assembly 300 can be calculated based on the difference between the combined height of the pressure-bearing device 500, acoustic assembly 300, and waterproof assembly 200 in the uncompressed state and their combined height in the compressed state. The height of the first accommodating chamber 110 can then be rationally designed so that, in the uncompressed state, the second end surface 512 of the pressure-bearing device 500 is a predetermined distance above the housing inner wall 102. That is, in the uncompressed state, the second end surface 512 of the pressure-bearing device 500 is separated from the housing inner wall 102 by a predetermined distance. This predetermined distance can be the required compression amount of the waterproof assembly 200. With this arrangement, the waterproof assembly 200 can be compressed to the target state by simply pressing the pressure-bearing device 500 down until its second end surface 512 abuts the edge of the first accommodating chamber 110. This approach simplifies operation, achieves high precision, improves efficiency, and reduces costs.

[0083] In some embodiments, the positioning protrusion 130 can be made of a hot-melt material, and the end of the positioning protrusion 130 is hot-melted and pressurized to form the aforementioned enlarged end 132. As an example, the positioning protrusion 130 includes a rod 131, and the top of the rod 131 is hot-melted and pressurized to form the enlarged end 132. The use of hot-melt pressure to form the positioning protrusion 130 into a rivet-like structure to fix the pressure-bearing device 500 on the housing 100 is not only simple to operate and efficient, but the hot-melt material can also seal the gap between the positioning protrusion 130 and the positioning hole 530 at the same time, eliminating the need to seal the gap between the positioning protrusion 130 and the positioning hole 530 again. This makes the operation simple, efficient, and reduces costs.

[0084] In some embodiments, the housing 100 may further include one or more channels. After the waterproof component 200, the acoustic component 300, and the pressure-bearing device 500 are fixed on the inner wall of the housing 100 (for example, in the first accommodating chamber 110), the seal 40 can be filled into the first gap T1 and the second gap T2 through the channel. In some embodiments, the channel can be provided on the housing 100, for example, on the bottom wall 103 or the side wall 104 of the housing. In some embodiments, the channel can be provided on the pressure-bearing device 500, for example, on the edge area of ​​the first end face 511 of the pressure-bearing device 500. In some embodiments, the gap between the pressure-bearing device 500 and the housing 100 after assembly constitutes part or all of the channel.

[0085] In summary, the present application provides an acoustic device 01 that has been waterproofed. A waterproof component 200 is provided at the sound hole connected to the internal space of the shell. The waterproof component 200 covers the second opening 122 of the sound hole 120, so that liquid does not enter the sound hole 311 of the acoustic sensor 310, and can prevent water and other liquids from entering the interior of the shell, thereby not affecting the acoustic performance of the acoustic sensor 310. The external force is uniformly applied to the target position of the waterproof component 200 by the pressure-bearing device 500, which can prevent the waterproof component 200 from wrinkling during the installation process. While achieving waterproof performance, the adverse effects of wrinkles on the acoustic performance of the waterproof component 200 are avoided, so that the acoustic device 01 can be both waterproof and have good acoustic performance. The first gap T1 between the acoustic component 300 and the shell 100 and the second gap T2 between the pressure-bearing device 500 and the shell 100 are sealed with a seal 400, further enhancing the waterproof performance, thereby providing waterproof protection for other components and circuits in the shell 100. The above design improves the waterproof capability of the acoustic device 01 and ensures the acoustic performance of the acoustic device 01.

[0086] The foregoing description describes specific embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require a specific or sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0087] In summary, after reading this detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure may be presented by way of example only and may not be limiting. Although not expressly stated herein, those skilled in the art will understand that the present application requires various reasonable changes, improvements, and modifications to the embodiments. Such changes, improvements, and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0088] In addition, certain terms in this application have been used to describe embodiments of the application. For example, "one embodiment," "an embodiment," and / or "some embodiments" mean that a particular feature, structure, or characteristic described in conjunction with that embodiment may be included in at least one embodiment of the application. Therefore, it is emphasized and should be understood that two or more references to "an embodiment," "one embodiment," or "an alternative embodiment" in various sections of this application do not necessarily refer to the same embodiment. Furthermore, particular features, structures, or characteristics may be appropriately combined in one or more embodiments of the application.

[0089] It should be understood that in the foregoing description of the embodiments of this application, in order to facilitate understanding of a feature and to simplify this application, this application combines various features into a single embodiment, figure, or description thereof. However, this does not mean that the combination of these features is required. When reading this application, it is entirely possible for those skilled in the art to extract some of the features and understand them as separate embodiments. In other words, the embodiments of this application can also be understood as the integration of multiple secondary embodiments. This also applies when the content of each secondary embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0090] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, articles, etc., cited herein is hereby incorporated by reference in its entirety for all purposes, except for any prosecution document history related thereto, any equivalent that may be inconsistent or conflicting with this document, or any equivalent prosecution document history that may have a limiting effect on the broadest scope of the claims now or hereafter associated with this document. For example, if there is any inconsistency or conflict between the description, definition, and / or use of terms associated with any incorporated material and the terminology, description, definition, and / or use associated with this document, the terminology in this document shall control.

[0091] Finally, it should be understood that the embodiments of the application disclosed herein are illustrations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations based on the embodiments in the present application to implement the applications in the present application. Therefore, the embodiments of the present application are not limited to the embodiments precisely described in the application.

Claims

1. An acoustic device, characterized in that, Comprising: A housing, including an outer wall, an inner wall, and a sound passage hole, the sound passage hole penetrating the housing and communicating the internal space of the housing with the external space; A waterproof component, disposed in the internal space and covering the sound passage hole to prevent liquid from entering the internal space from the external space; An acoustic component, including an acoustic sensor, the acoustic component being disposed on a side of the waterproof component away from the sound passage hole and sealingly connected to the waterproof component, the acoustic component and the housing forming a first gap; A pressure-bearing device, covering the acoustic component; And A seal, sealing the first gap to prevent the liquid from entering the internal space through the first gap.

2. The acoustic device according to claim 1, wherein When the pressure-bearing device is subjected to an external force in a first direction, the force is transmitted to a target position of the waterproof component such that the waterproof component abuts against the inner wall.

3. The acoustic device according to claim 2, characterized in that, Wherein, In a second direction perpendicular to the first direction, an outer edge dimension of the pressure-bearing device is larger than an outer edge dimension of the acoustic sensor.

4. The acoustic device according to claim 2 or 3, characterized in that, Wherein, The waterproof component includes: A waterproof film; A first bonding portion, located on one side of the waterproof film in the first direction; and A second bonding portion, located on the other side of the waterproof film in the first direction, wherein, Both the first bonding portion and the second bonding portion are annular, The target position includes the annular region.

5. The acoustic device according to claim 4, characterized in that, Wherein, The first bonding portion and the second bonding portion are in a compressed state in the first direction.

6. The acoustic device according to any one of claims 1-5, characterized in that, The housing includes a first accommodation cavity, and the waterproof component is disposed in the first accommodation cavity.

7. The acoustic device according to claim 6, characterized in that, The acoustic component further includes a circuit board, and the acoustic sensor is mechanically connected to the circuit board; The circuit board is installed at an opening end of the first accommodation cavity and forms the first gap with the opening end.

8. The acoustic device according to claim 6 or 7, characterized in that, The pressure-bearing device is installed at the opening end of the first accommodation cavity and forms a second gap with the opening end, and the seal fills the second gap.

9. The acoustic device according to claim 7, wherein The pressure-bearing device includes a pressure-bearing housing and a second accommodation cavity, and the acoustic sensor is located in the second accommodation cavity, Along the first direction, the pressure-bearing housing includes a first end face and a second end face, the second end face abuts against the circuit board, and the first end face is away from the circuit board to bear the external force.

10. The acoustic device according to any one of claims 1-9, characterized in that, Wherein, The acoustic sensor includes at least one of a pickup or a speaker; and The pressure-bearing device is made of a hard material.

11. The acoustic device according to any one of claims 7, characterized in that Wherein, The circuit board includes at least one positioning hole; and At least one positioning protrusion is provided on an end face surrounding the opening end, corresponding to the at least one positioning hole one by one, and the at least one positioning protrusion passes through the at least one positioning hole.

12. The acoustic device according to any one of claims 8, characterized in that, The pressure-bearing device includes at least one positioning hole; and At least one positioning protrusion is provided on the inner wall, corresponding to the at least one positioning hole one by one, and the at least one positioning protrusion passes through the at least one positioning hole.

13. The acoustic device according to claim 11 or 12, characterized in that, Wherein, At least one of the positioning protrusions includes an enlarged end portion, a radial dimension of the end portion being larger than a diameter of the positioning hole, fixing the circuit board on the end face.

14. The acoustic device according to claims 11-13, characterized in that, Wherein, The at least one positioning protrusion is not less than 2 and evenly surrounds the first accommodation cavity.

15. The acoustic device according to any one of claims 2-14, characterized in that, Wherein, The central axis of the sound passage hole forms an angle with the first direction that is not less than 30° and not greater than 60°; The sound passage hole includes a first opening on the outer wall and a second opening on the inner wall, and the second opening is smaller than the first opening; and The average diameter of the sound passage hole is 0.6 - 1.2 mm.

16. The acoustic device according to any one of claims 1-15, characterized in that, The seal is obtained by providing a fluid sealing material to the first gap and then curing it.

17. The acoustic device according to claim 16, characterized in that, The fluid sealing material is a sealant.

18. The acoustic device according to any one of claims 1 - 17, characterized in that The acoustic sensor includes a first acoustic sensor and a second acoustic sensor, The inner wall of the housing includes a housing bottom wall and a housing side wall: The housing bottom wall is provided with a third accommodation cavity for accommodating the first acoustic sensor; and The housing side wall is provided with a fourth accommodation cavity for accommodating the second acoustic sensor.

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