Headphone housing with waterproof structure

Abstract

The present invention provides an earphone shell with a waterproof structure. The earphone shell with a waterproof structure includes a rear shell having at least one tuning hole, a front shell mated to the rear shell, a sound outlet sealing assembly, an end cap sealing assembly, and a tuning hole sealing assembly. The sound outlet sealing assembly is disposed at the front end of the front shell, the end cap sealing assembly is disposed between the rear shell and the front shell, and the tuning hole sealing assembly is disposed on the rear shell and covers the tuning hole. The earphone shell with a waterproof structure is waterproofed and sealed by the sound outlet sealing assembly, the end cap sealing assembly, and the tuning hole sealing assembly.

Description

Technical Field

[0001] This invention relates to the field of electronic products, and more particularly to an earphone housing with a waterproof structure. Background Technology

[0002] Nowadays, people are paying more and more attention to health, and most people exercise in their spare time. There are many types of exercise, but simply exercising can be too boring. Therefore, people often wear headphones and listen to music while exercising. Listening to music while exercising helps to relax the mind, improve endurance, and release stress. However, during exercise, one inevitably faces various factors such as sweat, rain, and air humidity. If headphones are not waterproof and sweatproof, they are easily corroded by sweat and rainwater, which affects the product's performance and lifespan. Therefore, waterproof and sweatproof headphones are very important.

[0003] Especially for water sports enthusiasts who crave excitement, such as surfing and speedboat rides, energetic music is often needed to enhance the thrill. Therefore, good waterproof performance is also very important for headphones.

[0004] The principle behind modern waterproof headphone structures is generally to reduce the number of perforated interfaces to better achieve a seamless design and further enhance waterproofing. Reducing the number of interfaces significantly decreases the possibility of water ingress. However, a completely seamless, interface-free design is clearly impractical for headphones, as even the most airtight headphones still involve charging ports or driver exits. Therefore, minimizing interfaces is crucial; a compact size is structurally advantageous for waterproofing. Currently, there are generally two types of headphone waterproofing: structural waterproofing and nano-waterproofing. Structural waterproofing achieves the most rigorous and sealed waterproof and vapor-proof effects through the product's shell and structural design, typically resulting in higher waterproof ratings. Nano-waterproofing, also known as coating waterproofing, uses technologies like PECVD / Pyrelin to add a thin, waterproof, and corrosion-resistant coating to the shell, improving the headphone's waterproof performance. Summary of the Invention

[0005] A key advantage of this invention is that it provides an earphone housing with a waterproof structure, which ensures that the waterproof and breathable membranes of the sound outlet, end cap, and tuning hole will not detach even after being subjected to external impact, thereby ensuring the waterproof performance of the earphone.

[0006] Another advantage of the present invention is that it provides an earphone shell with a waterproof structure. Even if the waterproofing fails at the joint between the rear shell and the front shell, the earphone shell with the waterproof structure can still maintain its waterproof function through the waterproof and breathable membrane of the end cap, which can prevent the possibility of secondary water ingress, thus ensuring the waterproof performance of the earphone shell with the waterproof structure.

[0007] Another advantage of the present invention is that it provides an earphone housing with a waterproof structure, wherein the waterproof and breathable membrane of the sound outlet, together with the sound outlet fixing member, effectively prevents moisture from entering the earphone housing with a waterproof structure from the gap between the waterproof and breathable membrane of the sound outlet and the sound guide tube.

[0008] Another advantage of the present invention is that it provides an earphone shell with a waterproof structure, wherein when the sealing strip fails due to accident or aging, the waterproof and breathable membrane of the end cap can still continue to prevent moisture from entering the earphone, thus providing a double waterproof function.

[0009] Another advantage of the present invention is that it provides an earphone shell with a waterproof structure, wherein the double-layer arrangement of the waterproof and breathable membrane of the tuning hole makes it difficult for moisture to enter the interior of the earphone shell with the waterproof structure from the tuning hole, thereby ensuring the waterproof performance of the earphone shell with the waterproof structure.

[0010] Another advantage of the present invention is that it provides an earphone shell with a waterproof structure, wherein the first annular fastener ensures that the earphone shell with the waterproof structure can still elastically bias and fix the end cap waterproof and breathable membrane when it is dropped or vibrated by an external impact, so that the end cap waterproof and breathable membrane is fixed on the rear shell, thereby ensuring the waterproof performance of the earphone shell with the waterproof structure.

[0011] Another advantage of the present invention is that it provides an earphone shell with a waterproof structure, wherein the second annular fastener ensures that the earphone shell with the waterproof structure can still elastically bias and fix the waterproof and breathable membrane of the tuning hole when it is dropped or vibrated by an external impact, so that the waterproof and breathable membrane of the tuning hole is fixed above the tuning hole and prevents moisture from entering from the tuning hole.

[0012] Another advantage of the present invention is that it provides an earphone shell with a waterproof structure, wherein the first annular fixing member and the second annular fixing member can still provide sufficient waterproof performance to the earphone shell without occupying most of the internal space of the earphone shell with the waterproof structure, so that the internal space of the earphone shell with the waterproof structure has ample space for tuning, resulting in better sound quality of the earphone shell with the waterproof structure.

[0013] Another advantage of the present invention is that it provides an earphone shell with a waterproof structure, which adopts a pure structural connection without any extra holes, thereby reducing the possibility of water entering the earphone.

[0014] Another advantage of the present invention is that it provides an earphone shell with a waterproof structure, which is manufactured without the use of adhesives and has stable waterproof performance.

[0015] Another advantage of the present invention is that it provides an earphone shell with a waterproof structure. In terms of method, the assembly of the earphone shell with the waterproof structure can be completed simply by placing the components in sequence and then docking the first shell and the second shell together, which is very convenient.

[0016] Other advantages and features of the invention will be fully apparent from the following detailed description and may be achieved by combinations of the means and apparatus specifically pointed out in the appended claims.

[0017] According to one aspect of the present invention, the present invention provides an earphone housing with a waterproof structure capable of achieving the foregoing and other objects and advantages, comprising:

[0018] A rear housing having at least one tuning hole and a front housing mated to the rear housing;

[0019] A sound outlet sealing assembly, the sound outlet sealing assembly includes a sound outlet waterproof and breathable membrane and a sound outlet fixing member, the sound outlet waterproof and breathable membrane is disposed at the end of the front housing away from the rear housing, and the sound outlet fixing member snaps and fixes the sound outlet waterproof and breathable membrane to the front housing;

[0020] An end cap sealing assembly, comprising an end cap waterproof and breathable membrane and a first annular fixing member, wherein the end cap waterproof and breathable membrane is disposed at the abutment position of the front housing and the rear housing, the outer side of the first annular fixing member is fixed around the rear housing, and the inner side of the first annular fixing member is biased against the end cap waterproof and breathable membrane to fix the end cap waterproof and breathable membrane; and

[0021] A tuning hole sealing assembly includes a tuning hole waterproof and breathable membrane and a second annular fastener. The tuning hole waterproof and breathable membrane is disposed inside the rear housing and covers the tuning hole. The outer side of the second annular fastener is mounted around the rear housing, and the inner side of the second annular fastener biases and fixes the tuning hole waterproof and breathable membrane to the rear housing.

[0022] According to one embodiment of the present invention, the front housing further includes an end cap and a sound guide tube, the sound guide tube being integrally connected to the end cap, the outer wall of the sound guide tube having a groove, the middle portion of the sound outlet waterproof and breathable membrane being recessed inward and arranged to fit into the inner cavity of the sound guide tube, the outer edge of the sound outlet waterproof and breathable membrane being folded towards the end cap to fit against the outer wall of the sound guide tube and engaging in the groove of the outer wall of the sound guide tube, the middle portion of the sound outlet fixing member being recessed to press the sound outlet waterproof and breathable membrane into the inner wall of the sound guide tube, the outer edge of the sound outlet fixing member extending towards the end cap and covering the groove, and fixing the sound outlet waterproof and breathable membrane to the sound guide tube.

[0023] According to one embodiment of the present invention, the end cap further has a fixing groove arranged close to the rear housing, and the portion of the waterproof and breathable membrane of the end cap that is in contact with the end cap extends toward the end cap to form a raised fixing ring, the raised fixing ring being fixed to the fixing groove, thereby fixing the waterproof and breathable membrane of the end cap to the end cap.

[0024] According to one embodiment of the present invention, the rear housing further has a locking groove, the locking groove being arranged around the inner wall of the rear housing and close to the docking position of the rear housing and the front housing, the waterproof and breathable membrane of the end cap extending laterally from the end cap toward the rear housing and passing over the docking position of the rear housing and the front housing to form a protruding locking ring, the protruding locking ring engaging into the locking groove to fix the waterproof and breathable membrane of the end cap to the rear housing.

[0025] According to one embodiment of the present invention, the rear housing further has a fitting groove arranged around the tuning hole.

[0026] According to one embodiment of the present invention, the waterproof and breathable membrane for the tuning hole includes a blocking membrane and a fixing membrane. The blocking membrane is attached to the inner wall of the rear housing and covers the tuning hole. The fixing membrane covers the blocking membrane and forms an interlocking portion from the periphery of the blocking membrane. The interlocking portion of the fixing membrane is fitted into the interlocking groove to ensure the sealing of the tuning hole.

[0027] According to one embodiment of the present invention, the first annular fastener includes a first annular fixing part and a plurality of elastic biasing parts, wherein the plurality of elastic biasing parts extend from the first annular fixing part toward the front housing and elastically bias the end cap waterproof and breathable membrane onto the engaging groove.

[0028] According to one embodiment of the present invention, the second annular fastener includes a second annular fixing part and a plurality of elastic fixing parts, wherein the plurality of elastic fixing parts extend radially from the inner ring of the second annular fixing part toward the center, and elastically bias and fix the fitting part to the fitting groove.

[0029] According to one embodiment of the present invention, the earphone housing with a waterproof structure further includes at least one tuning cotton, which is disposed between the blocking membrane and the fixing membrane.

[0030] According to one embodiment of the present invention, the earphone housing with a waterproof structure further includes a sealing strip, which is disposed at the position where the rear housing and the front housing meet.

[0031] Further objects and advantages of the invention will become fully apparent from the following description and accompanying drawings. These and other objects, features, and advantages of the invention will be fully realized through the following detailed description, the accompanying drawings, and the claims. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a waterproof headphone shell according to a preferred embodiment of the present invention.

[0033] Figure 2 This is an overall cross-sectional view of the headphone housing with a waterproof structure according to a preferred embodiment of the present invention.

[0034] Figure 3 This is an exploded view of the overall structure of the headphone housing with a waterproof structure according to a preferred embodiment of the present invention.

[0035] Figure 4 This is a schematic diagram of the overall structure of the first annular fixing member of the earphone shell with a waterproof structure according to a preferred embodiment of the present invention.

[0036] Figure 5 This is a schematic diagram of the overall structure of the second annular fixing member of the earphone shell with a waterproof structure according to a preferred embodiment of the present invention.

[0037] Figure 6 This is an overall schematic diagram of the headphone housing with a waterproof structure according to two preferred embodiments of the present invention.

[0038] Figure 7 This is an exploded view of the structure of the earphone housing with a waterproof structure according to two preferred embodiments of the present invention.

[0039] Figure 8 This is an overall cross-sectional view of the headphone housing with a waterproof structure according to two preferred embodiments of the present invention.

[0040] Figure 9 This is a structural anatomical view of the headphone housing with a waterproof structure according to two preferred embodiments of the present invention. Detailed Implementation

[0041] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0042] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0043] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0044] Example 1:

[0045] Reference Appendix Figure 1 To be continued Figure 5 A preferred embodiment of the present invention is illustrated in the headphone housing with a waterproof structure.

[0046] The waterproof headphone shell can maintain its waterproof performance even after prolonged use and accidental drops.

[0047] In detail, the waterproof headphone housing may include a rear housing 10 having at least one tuning hole 101, a front housing 20 mating with the rear housing 10, a sound outlet sealing assembly 30, an end cap sealing assembly 40, and a tuning hole sealing assembly 50.

[0048] The end cap sealing assembly 40 is disposed between the rear housing 10 and the front housing 20 for sealingly connecting the rear housing 10 and the front housing 20. The sound outlet sealing assembly 30 is disposed at the end of the front housing 20 away from the rear housing 10. The tuning hole sealing assembly 50 is disposed on the rear housing 10 and seals and covers the tuning hole 101 to prevent moisture from entering the waterproof headphone housing from the tuning hole 101.

[0049] Even if the waterproof structure of the earphone shell fails at the joint between the rear shell 10 and the front shell 20, the waterproof function can still be guaranteed by the end cap sealing assembly 40. This prevents moisture from re-entering the earphone shell and ensures its waterproof performance.

[0050] The front housing 20 of the waterproof headphone housing includes an end cap 201 and a sound guide tube 202. The sound guide tube 202 is cylindrical, hollow inside, and integrally connected to the center of the end cap 201. The end cap 201 is disc-shaped, and its cross-sectional size is the same as that of the rear housing 10. This ensures that the overall structure remains smooth after the front housing 20 and the rear housing 10 are joined, making it less likely for water to accumulate on the surface of the waterproof headphone housing, further reducing the possibility of water ingress.

[0051] The sound guide tube 202 is tubular, and a sound guide cavity is formed inside the sound guide tube 202. The sound guide cavity is used to transmit sound and is connected to the rear housing 10. Those skilled in the art should understand that the tuning hole 101 is connected to the outside and the rear housing 10. That is, the external space is connected to the internal space of the earphone housing with waterproof structure through the tuning hole 101 and the sound guide cavity, so that the internal air pressure of the earphone housing with waterproof structure is consistent with the external air pressure, ensuring the propagation of sound.

[0052] The sound guide tube 202 also has a slot 2021, which is arranged around the outer wall of the sound guide tube 202. In other words, the slot 2021 is annular and arranged at a position flush with and behind the port of the sound guide tube 202.

[0053] The sound outlet sealing assembly 30 includes a sound outlet waterproof and breathable membrane 301 and a sound outlet fixing member 302.

[0054] The sound outlet waterproof and breathable membrane 301 is recessed in the middle and arranged to fit into the inner cavity of the sound guide tube 202. The outer edge of the sound outlet waterproof and breathable membrane 301 is folded towards the end cap 201 to fit against the outer wall of the sound guide tube 202 and is engaged in the slot 2021 on the outer wall of the sound guide tube 202 to prevent moisture from entering the earphone shell with waterproof structure.

[0055] In other words, from the cross-section of the sound outlet waterproof and breathable membrane 301, the cross-section of the sound outlet waterproof and breathable membrane 301 is "bow" shaped. The upper and lower recessed parts on the left side of the "bow" shape are engaged with the tube wall of the sound guide tube 202 to prevent moisture intrusion. This engaging design can effectively prevent moisture intrusion.

[0056] The recessed center of the sound outlet fixing member 302 presses and adheres the sound outlet waterproof and breathable membrane 301 into the inner wall of the sound guide tube 202. The outer edge of the sound outlet fixing member 302 extends toward the end cap 201 and covers the slot 2021, and covers and fixes the sound outlet waterproof and breathable membrane 301 onto the sound guide tube 202.

[0057] The sound outlet fixing component 302 can be made of high-strength plastic, metal, or silicone. In particular, a dustproof mesh is provided on the part of the sound outlet fixing component 302 facing the sound guide tube 202 to prevent dust and debris from the ear canal from entering the waterproof earphone shell, thereby achieving a waterproof and dustproof effect.

[0058] The waterproof and breathable membrane 301 at the sound outlet, together with the sound outlet fixing component 302, effectively prevents moisture from entering the waterproof headphone shell through the gap between the waterproof and breathable membrane 301 at the sound outlet and the sound guide tube 202.

[0059] The end cap sealing assembly 40 includes an end cap waterproof and breathable membrane 401 and a first annular fastener 402.

[0060] The end cap sealing assembly 40 is disposed between the rear housing 10 and the front housing 20 to prevent moisture from entering from the joint between the rear housing 10 and the front housing 20. It can also further prevent moisture from entering the rear housing 10 from the sound guide tube 202, thus playing a dual role in preventing moisture from entering.

[0061] The end cap 201 is disc-shaped, with its concave side facing the rear housing 10 and mating with the rear housing 10. The concave side of the end cap 201 also has a fixing groove 2011, which is arranged around the inner wall of the concave side of the end cap 201.

[0062] The waterproof and breathable membrane 401 of the end cap sealing assembly 40 is disposed in contact with the recessed inner wall of the end cap 201. The portion of the waterproof and breathable membrane 401 that is in contact with the end cap 201 extends into the end cap 201 to form a protruding fixing ring 4011. The cross-sectional area of ​​the protruding fixing ring 4011 is slightly larger than the cross-sectional area of ​​the fixing groove 2011. The protruding fixing ring 4011 is pressed into the fixing groove 2011, thereby fixing the waterproof and breathable membrane 401 to the inner wall of the end cap 201 and preventing moisture from entering the rear housing 10 from the sound guide tube 202.

[0063] It is worth mentioning that the periphery of the end cap waterproof and breathable membrane 401 extends along the inner wall of the end cap 201 toward the rear housing 10 and passes the position where the rear housing 10 and the front housing 20 are joined, and a protruding locking ring 4012 is formed on the periphery of the end cap waterproof and breathable membrane 401. The protruding locking ring 4012 is perpendicular to the end cap waterproof and breathable membrane 401. In other words, the protruding locking ring 4012 is formed by extending laterally from the edge of the end cap waterproof and breathable membrane 401.

[0064] The rear housing 10 also has a locking groove 103, which is arranged around the inner wall of the rear housing 10 and close to the docking position between the rear housing 10 and the front housing 20.

[0065] The protruding locking ring 4012 of the end cap waterproof and breathable membrane 401 is adapted to engage with the locking groove 103. The cross-sectional area of ​​the locking groove 103 is slightly smaller than that of the protruding locking ring 4012, so that the end cap waterproof and breathable membrane 401 can press and fix the protruding locking ring 4012 to the locking groove 103 by compression. This allows the end cap waterproof and breathable membrane 401 to cover the joint position between the front housing 10 and the rear housing 20, thereby giving the joint position between the front housing 20 and the rear housing 10 good waterproof performance.

[0066] In particular, the two protrusions formed by the protruding fixing ring 4011 and the protruding engaging ring 4012 cooperate with the fixing groove 2011 and the engaging groove 103, effectively restricting water from entering from the docking position of the rear shell 10 and the front shell 20, thereby enabling the waterproof effect of the earphone shell with the waterproof structure to be realized.

[0067] The waterproof headphone shell also includes a sealing strip 70, which is disposed at the mating position of the rear shell 10 and the front shell 20. In other words, the sealing strip 70 seals the rear shell 10 and the front shell 20 together. The sealing strip 70 can be coated with sealant to further prevent moisture intrusion.

[0068] When the rear housing 10 and the front housing 20 are joined, the sealing strip 70 is squeezed and deformed, so that the sealing strip 70 has an outward expansion force to press against the rear housing 10 and the front housing 20 with bias, thereby preventing moisture from entering.

[0069] It is worth mentioning that the end cap waterproof and breathable membrane 401 is located at the docking position of the rear shell 10 and the front shell 20, that is, at the position of the sealing strip 70. In other words, when the sealing strip 70 ages or fails accidentally, the end cap waterproof and breathable membrane 401 can still ensure that moisture does not enter the inside of the earphone shell with waterproof structure.

[0070] The two protrusions formed by the protruding fixing ring 4011 and the protruding engaging ring 4012 engage with the fixing groove 2011 and the engaging groove 103 to confine moisture to the end cap waterproof and breathable membrane 401 between the protruding fixing ring 4011 and the protruding engaging ring 4012, thereby limiting further moisture ingress.

[0071] The diameter of the first annular fastener 402 is slightly larger than that of the end cap waterproof and breathable membrane 401. The first annular fastener 402 is an annular tubular metal sheet, which can bias and fix the portion of the end cap waterproof and breathable membrane 401 extending to the rear housing 10. In other words, the first annular fastener 402 biases and fixes the end cap waterproof and breathable membrane 401 to the rear housing 10, thereby reinforcing the end cap waterproof and breathable membrane 401 and preventing the end cap waterproof and breathable membrane 401 from being accidentally detached from the earphone housing with a waterproof structure.

[0072] The first annular fixing member 402 includes a first annular fixing part 4021 and a plurality of elastic biasing parts 4022. The first annular fixing part 4021 is fixed to the inner wall of the rear housing 10 and is close to the docking position between the rear housing 10 and the front housing 20. The plurality of elastic biasing parts 4022 extend from the first annular fixing part 4021 toward the front housing 20, that is, extend along the axial direction of the first annular fixing member 402, and form a plurality of elastic fixing biasing pieces, thereby partially biasing the end cap waterproof and breathable membrane 401 extending to the rear housing 10 onto the locking groove 103, that is, fixing the protruding locking ring 4012 of the end cap waterproof and breathable membrane 401 to the locking groove 103, thereby ensuring the waterproof performance of the earphone housing with waterproof structure.

[0073] The elastic biasing part 4022 is biased above the engaging groove 103, which makes the sealing of the end cap waterproof and breathable membrane 401 better, and also prevents the end cap waterproof and breathable membrane 401 from falling off when the earphone shell with waterproof structure is impacted by external force or dropped.

[0074] The waterproof headphone shell also includes an electroacoustic conversion device 60, which is installed on the rear shell 10. One end of the electroacoustic conversion device 60 is biased against the end cap 201, and the other end is fixed to the rear shell 10. The electroacoustic conversion device 60 is biased against the fixing groove 2011 of the end cap 201. That is, the electroacoustic conversion device 60 biases and fixes the protruding fixing ring 4011 of the waterproof and breathable membrane 401 of the end cap to the fixing groove 2011, further securing the end cap. As those skilled in the art should understand, the protruding fixing ring 4011 and the protruding engaging ring 4012 of the end cap waterproof and breathable membrane 401 are fixed by the first annular fixing member 402 and the electroacoustic conversion device 60, further ensuring the firm fixation of the end cap waterproof and breathable membrane 401. This ensures that the end cap waterproof and breathable membrane 401 will not fall off when the headphone shell with the waterproof structure is subjected to accidental impact or drop, thereby ensuring the waterproof performance of the headphone shell with the waterproof structure.

[0075] The waterproof headphone shell also includes multiple tuning cotton 80s, which are disposed on both sides of the electroacoustic conversion device 60. That is, one side of the tuning cotton 80 is installed on the electroacoustic conversion device 60 near the end cap 201. The tuning cotton 80 is placed between the electroacoustic conversion device 60 and the waterproof and breathable membrane 401 of the end cap to reduce the friction between the electroacoustic conversion device 60 and the waterproof and breathable membrane 401 of the end cap. This is to prevent the electroacoustic conversion device 60 from wearing down the waterproof and breathable membrane 401 of the end cap when the waterproof headphone shell is dropped or accidentally bumped, thus protecting the waterproof and breathable membrane 401 of the end cap.

[0076] The tuning cotton 80 is also disposed between the electroacoustic conversion device 60 and the rear housing 10, and is used to provide shock absorption and support for the electroacoustic conversion device 60.

[0077] The electroacoustic conversion device 60 can be a moving coil speaker or a moving iron unit. Those skilled in the art will know that the electroacoustic conversion device 60 includes, but is not limited to, the above-described embodiments.

[0078] The tuning hole sealing assembly 50 is disposed on the inner wall of the rear housing 10 and covers the tuning hole 101. The tuning hole sealing assembly 50 is used to prevent moisture from entering the earphone housing with a waterproof structure from the tuning hole 101.

[0079] The tuning hole 101 is frustum-shaped, and its top surface, i.e. the side with the smaller area, faces the tuning hole sealing assembly 50. This ensures that when water enters the tuning hole 101, it is blocked by the tuning hole sealing assembly 50 and flows out along the inclined surface of the tuning hole 101, preventing water accumulation. This further reduces the possibility of water entering the waterproof headphone shell from the tuning hole 101.

[0080] The tuning hole sealing assembly 50 includes a tuning hole waterproof and breathable membrane 501 and a second annular fastener 502.

[0081] The rear housing 10 also has a fitting groove 102, which is disposed on the inner wall of the rear housing 10. The fitting groove 102 is formed around the tuning hole 101. In other words, the fitting groove 102 is arranged around the tuning hole 101.

[0082] Specifically, the waterproof and breathable membrane 501 for the tuning holes has a double-layer structure. The waterproof and breathable membrane 501 for the tuning holes further includes a blocking membrane 5011 and a fixing membrane 5012. The blocking membrane 5011 adheres to the inner wall of the rear housing 10 and completely covers the multiple tuning holes 101, thus preventing moisture from entering. The area of ​​the fixing membrane 5012 is larger than that of the blocking membrane 5011, and the portion of the fixing membrane 5012 that is larger than the blocking membrane 5011 forms a fitting portion 50121. The fitting portion 50121 is adapted to fit into the fitting groove 102 of the rear housing 10, thereby firmly fixing the blocking membrane 5011 to the rear housing 10, forming a double guarantee. When the user uses the headphone housing with the waterproof structure, there is no need to worry about moisture intrusion.

[0083] In particular, the tuning cotton 80 can also be installed between the blocking membrane 5011 and the fixing membrane 5012 for tuning, so that the headphone shell with waterproof structure has a certain tuning capability while having waterproof performance.

[0084] The diameter of the second annular fixing member 502 is slightly larger than that of the tuning hole waterproof and breathable membrane 501. The second annular fixing member 502 is an annular metal sheet, which covers the fitting portion 50121 of the tuning hole waterproof and breathable membrane 501. In other words, the second annular fixing member 502 biases and fixes the tuning hole waterproof and breathable membrane 501 to the rear housing 10, thereby reinforcing the tuning hole waterproof and breathable membrane 501 and preventing the tuning hole waterproof and breathable membrane 501 from falling off when the waterproof headphone housing is subjected to accidental impact or drop.

[0085] The second annular fixing member 502 includes a second annular fixing part 5021 and a plurality of elastic fixing parts 5022. The second annular fixing part 5021 is fixed to the inner wall of the rear housing 10 and is located near the tuning hole 101 of the rear housing 10. The plurality of elastic fixing parts 5022 extend radially from the inner ring of the second annular fixing part 5021 toward the center, forming a plurality of elastic fixing bias plates, thereby fixing the fixing membrane 5012 of the waterproof and breathable membrane 501 of the tuning hole, that is, the plurality of elastic... The fixing part 5022 is elastically biased above the fitting groove 102. That is, the multiple elastic fixing parts 5022 fix the fitting part 50121 of the fixing membrane 5012 above the fitting groove 102, thereby fixing the tuning hole waterproof and breathable membrane 501 to the rear shell 10 and preventing moisture from entering the waterproof headphone shell from the tuning hole 101. It also prevents the tuning hole waterproof and breathable membrane 501 from falling off when the waterproof headphone shell is impacted or dropped.

[0086] The double-layer design of the barrier membrane 5011 and the fixing membrane 5012 can effectively prevent the intrusion of moisture. Even if the barrier membrane 5011 fails due to an accident, the fixing membrane 5012 can still provide waterproof function.

[0087] In summary, the waterproof headphone shell has a sound outlet sealing assembly 30 at the front end of the sound guide tube 202 to prevent moisture from entering through the sound guide tube 202. The end cap sealing assembly 40 is provided between the rear shell 10 and the front shell 20 of the waterproof headphone shell. The end cap sealing assembly 40 can still ensure the waterproof performance of the waterproof headphone shell after the sealing strip 70 ages and fails. Furthermore, the portion of the end cap waterproof and breathable membrane 401 extending to the rear shell 10 is located between the rear shell 10 and the front shell 20, effectively preventing moisture from entering through the gap between the rear shell 10 and the front shell 20.

[0088] The waterproof headphone housing also includes a cable retainer 90, which is a frustum shape. The rear housing 10 also has a cable hole 104. The end of the cable retainer 90 with a larger bottom surface is disposed in the cable hole 104 of the rear housing 10, and the side of the cable retainer 90 is biased against the cable hole 104.

[0089] The cable hole 104 is also frustum-shaped, with the same size as the cable retainer 90. In particular, the frustum-shaped design allows the larger side of the cable retainer 90 to move towards the smaller side when the user pulls the cable. This causes the side of the cable retainer 90 to press against the cable hole 104. In other words, the greater the external force on the cable 80, the tighter the cable retainer 90 is fixed to the cable hole 104. This makes it difficult for moisture to enter through the cable hole 104. The cable retainer 90 and the cable hole 104 are bonded together with waterproof adhesive, effectively preventing moisture intrusion.

[0090] Example 1:

[0091] Appendix Figure 6 To be continued Figure 9 The diagram shown is a schematic of a waterproof headphone housing provided by the present invention. The waterproof headphone housing includes a first housing 1, a second housing 2, a fixing member 3, and a sealing component 4. The first housing 1 and the second housing 2 are adapted to enclose the fixing member 3 and some circuit components. The fixing member 3 is adapted to fix the circuit components inside the first housing 1 and the second housing 2 to prevent the circuit components from being damaged by shaking during use.

[0092] The sealing component 4 is disposed at the connection between the first housing 1 and the second housing 2 and in the communication channel between the inside and outside of the earphone, so as to prevent water flow, water vapor, etc. from entering the inside of the earphone and damaging the circuit components inside the earphone.

[0093] The waterproof headphone structure adopts a pure structural connection in its overall structure, and the sealing component 4 is set at the connection to ensure the connection sealing of the waterproof headphone structure. At the same time, the waterproof headphone structure adopts a pure structural connection and does not have extra threaded holes or screw holes in its structure, which increases the overall structural strength and waterproof performance of the waterproof headphone structure.

[0094] Because the waterproof headphone structure needs to decode and compile sound for transmission and recording, a sound outlet channel connecting the inside and outside of the headphone is provided within the waterproof headphone structure. However, the waterproof headphone structure is equipped with the sealing component 4 within the sound outlet channel to prevent dust and water from entering the headphone through the sound outlet channel and affecting the normal operation of the headphone.

[0095] like Figures 6 to 9As shown, the sealing assembly 4 includes a first sealing ring 41, a second sealing ring 42, a first filter 43, and a second filter 44. The first sealing ring 41 is disposed at the connection between the first housing 1 and the second housing 2 to prevent water or water vapor from entering the earphone from the connection between the first housing 1 and the second housing 2, thereby ensuring the sealing and waterproof performance of the earphone's waterproof structure.

[0096] The second sealing ring 42 is disposed at the connection between the second housing structure 20 and the fastener 3 to ensure the sealing of the connection between the second housing structure 20 and the fastener 3.

[0097] The first filter 43 and the second filter 44 are respectively disposed in the fixing member 3 and the second housing 2. The placement of the first filter 43 and the second filter 44 is not limited by this embodiment. The first filter 43 and the second filter 44 are preferably made of waterproof material. The first filter 43 and the second filter 44 are disposed in the fixing member 3 and the second housing 2 to prevent water from entering the inside of the earphone.

[0098] The first filter 43 and the second filter 44 are respectively disposed on the fixing member 3 and the second housing 2. This can effectively prevent the second sealing ring 42 or the filter disposed near the sound outlet from failing to provide waterproofing. In this case, the other filter can still play a waterproofing role, thereby improving the waterproofing performance of the headphone waterproof structure.

[0099] The sealing assembly 4 also includes a dustproof mesh 45, which is disposed at the sound outlet of the second housing 2. The dustproof mesh 45 is used to prevent dust from entering the sound outlet during daily use, blocking the sound outlet, and degrading the sound quality of the headphones. At the same time, because the headphones generate a large amount of electromagnetic field when in use, the headphones will attract a large amount of dust and particles at the sound outlet. The dustproof mesh 45 can block the dust and particles on the surface of the headphones, making them easy to clean and preventing dust from entering the sound outlet and causing cleaning difficulties.

[0100] The first housing 1 has a first opening 11 located at the side end of the first housing 1. The first opening 11 extends perpendicularly from the side end surface of the first housing 1 into the interior of the first housing to form a first receiving cavity 12. The first receiving cavity 12 is adapted to accommodate the circuit assembly and the fixing member 3, etc.

[0101] The first housing 1 has a first sealing groove 13, which is located on the outer periphery of the first receiving cavity 12 and away from one end of the first opening 11. The first sealing groove 13 surrounds the first receiving cavity 12 and extends perpendicularly from the outer end surface of the first receiving cavity 12 toward the first receiving cavity. The first sealing groove 13 is adapted to receive the first sealing ring 41.

[0102] When the first housing 1 is connected to the second housing 2, the first sealing ring 41 is disposed in the first sealing groove 13 to increase the sealing at the connection between the first housing 1 and the second housing 2, and to prevent water from entering the earphone from the gap at the connection between the first housing 1 and the second housing 2, damaging the circuit components and causing the earphone to malfunction.

[0103] The first housing 1 also has a protrusion 14 located on the outer periphery of the first receiving cavity 12, near one end of the first opening 11. The protrusion 14 extends vertically outward from the outer end surface of the first receiving cavity 12 and protrudes beyond the outer periphery plane of the first receiving cavity 12. The protrusion 14 is adapted to act as a locking mechanism when the first housing 1 is connected to the second housing 2.

[0104] The interior of the first housing 1 also has a wiring channel 15, which is connected to the first receiving cavity 12 and is suitable for power supply lines and electronic components to pass through, so as to connect the circuit assembly and enable the earphone to work normally.

[0105] Both the first sealing groove 13 and the protrusion 14 are recessed into the surface of the first housing 1. When the first housing 1 is connected to the second housing 2, both the first sealing groove 13 and the protrusion 14 are covered inside the second housing 2 to increase the integrity of the earphone housing with waterproof structure.

[0106] The second housing 2 is preferably convex in shape. When the first housing 1 is connected to the second housing 2, the convex bottom of the second housing 2 is directly opposite to the first housing 1 and connected to the first housing 1. At both ends of the second housing 2, on the same axis, there is a second opening 21 and a third opening 22, respectively. The centers of the second opening 21 and the third opening 22 are located on the same horizontal axis. The second opening 21 is located at the convex bottom of the second housing 2, and the third opening 22 is located at the convex top of the second housing 2. Therefore, the cross-sectional area or diameter of the second opening 21 is larger than the cross-sectional area or diameter of the third opening 22.

[0107] The second opening 21 extends perpendicularly from the surface of the second housing 2 into the interior of the second housing 2 to form a second receiving cavity 23 and a third receiving cavity 24. The second receiving cavity 23 is located close to the second opening 21, and the third receiving cavity 21 is located away from the second opening 21. In other words, compared to the second receiving cavity 23, the third receiving cavity 24 is located closer to the center of the second housing 2, that is, starting from the position of the second opening 21, the third receiving cavity 24 is located at a deeper position in the second housing 2.

[0108] The second receiving cavity 23 is connected to the third receiving cavity 24. The inner diameter or cross-sectional area of ​​the second receiving cavity 23 is larger than the outer diameter or cross-sectional area of ​​the first receiving cavity 12. When the first housing 1 and the second housing 2 are connected, the second receiving cavity 23 covers the outer wall of the first receiving cavity 12 of the first housing 1.

[0109] The inner wall of the second receiving cavity 23 also has a recess 26, which is recessed into the inner wall of the second receiving cavity 23 and is adapted to accommodate the protrusion 14. When the first housing 1 and the second housing 2 are connected, the second receiving cavity 23 covers the outer wall of the first receiving cavity 12, and the protrusion 14 is accommodated and engaged with the recess 26. The first housing 1 and the second housing 2 are adapted to achieve a purely structural engaging connection through the protrusion 14 and the recess 26, so that the waterproof structure of the earphone has better structural integrity compared with the structure of bolt connection or screw connection, reduces unnecessary holes in the structure, and further improves the waterproof performance of the waterproof structure of the earphone.

[0110] The inner diameter or cross-sectional area of ​​the second receiving cavity 23 is larger than the inner diameter or cross-sectional area of ​​the third receiving cavity 24. The third receiving cavity 24 is adapted to accommodate the fixing member 3 and the circuit assembly. The fixing member 3 is adapted to be accommodated in the third receiving cavity 24 through the second opening 21 and the second receiving cavity 23.

[0111] The third opening 22 extends vertically from the surface of the second housing 2 into the interior of the second housing 2 to form a first sound channel 25. The first sound channel 25 extends inward and communicates with the second receiving cavity 24 and the third receiving cavity 23. The first sound channel 25 is adapted to allow sound to pass through, transmitting the sound generated by the circuit components inside the headphones and recording external sounds.

[0112] The shape of the dustproof mesh 45 is the same as that of the third opening 22, but the cross-sectional area or diameter of the dustproof mesh 45 is larger than that of the third opening 22, so that the dustproof mesh 45 can be covered on the surface of the third opening 22 to intercept dust, particles and the like outside the earphone for easy cleaning. Similarly, it can prevent dust, particles and the like from entering the first channel 25 and blocking the first channel 25, making it difficult for sound to enter or exit, and affecting the normal operation of the earphone.

[0113] The first filter 43 is disposed within the first sound channel 25, located near the third opening 22. There is a gap between the dustproof net 45 and the first filter 43 so that the dustproof net 45 and the first filter 43 will not interfere with each other when they are working, thereby increasing the dustproof and waterproof effects of the dustproof net 45 and the first filter 43.

[0114] The diameter or cross-sectional area of ​​the first channel 25 is larger than the diameter or cross-sectional area of ​​the third opening 22, so that the first channel 25 forms a sealing part near the third opening 22. The first filter 43 is adapted to be installed in the sealing part to waterproof and seal the first channel 25. Furthermore, when the fixing member 3 is installed, the second sealing ring 42 forms a seal with the sealing part to prevent water from entering the earphone from the installation gap between the second housing 2 and the fixing member 3, so as to affect the performance.

[0115] The waterproof structure of the headphones utilizes the second sealing ring 42 to seal the installation gap between the fixing member 3 and the second housing 2, and utilizes the first filter 43 to waterproof and seal the first sound channel 25, thereby increasing the waterproof performance of the headphone waterproof structure. This allows the headphones to block water flow to the outside of the headphones even without adhesive, thus achieving structural waterproofing of the headphones.

[0116] The outer end of the first channel 25 also has a mounting slot 27, which is suitable for installing rubber ear tips of different sizes to help the headphones enter the ear and improve the comfort of using the headphones. Similarly, it allows sound to enter the ear canal directly, reducing interference from the external environment and improving the sound quality and volume of the headphones.

[0117] The shape of the fastener 3 is similar to that of the second housing 2, and is approximately "convex". It has a rear opening 32 and a front opening 31. The centers of the rear opening 32 and the front opening 31 are located on the same horizontal axis. The rear opening 32 is located at the bottom of the "convex" shape of the fastener 3, and the front opening 31 is located at the top of the "convex" shape of the fastener 3. Therefore, the cross-sectional area or diameter of the rear opening 32 is larger than that of the front opening 31.

[0118] The rear opening 32 extends vertically from the surface of the fixing member 3 into the interior of the fixing member 3 to form an electronic component receiving cavity 33. The electronic component receiving cavity 33 is located near the rear opening 32 and is adapted to accommodate the circuit assembly.

[0119] The front opening 31 extends vertically from the surface of the fixing member 3 into the interior of the fixing member 3 to form a second sound channel 34. The second sound channel 34 is connected to the electronic component receiving cavity 33. The second sound channel 34 is adapted to allow sound to pass through, transmitting the sound generated by the circuit components inside the earphone and recording external sound.

[0120] The outer end of the fastener 3 has a second sealing groove 35, which is located near the front opening 31. The second sealing groove 35 is suitable for installing the second sealing ring 42, and the second sealing ring 42 is installed on the fastener 3 through the second sealing groove 35.

[0121] The inner diameter or cross-sectional area of ​​the third receiving cavity 24 is greater than the outer diameter or cross-sectional area of ​​the fixing member 3, and the inner diameter or cross-sectional area of ​​the first audio channel 25 is greater than the outer diameter or cross-sectional area of ​​the second audio channel 34. During installation, the outer end of the electronic component receiving cavity 33 of the fixing member 3 is received in the third receiving cavity 24, and the outer end of the second audio channel 25 is received in the first audio channel 25.

[0122] The second filter 44 is covered within the second channel 34 to prevent water from entering the earphone through the second channel 34. The waterproof structure of the earphone is achieved by setting the first filter 43 and the second filter 44 in the first channel 25 and the second channel 34 respectively, and setting a sealing ring at the connection of the earphone shell with the waterproof structure, so as to further improve the waterproof performance of the earphone waterproof structure.

[0123] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. An earphone shell with a waterproof structure, characterized in that, include: A rear housing having a tuning hole; A front housing, which is mated to the rear housing; A sound outlet sealing assembly, the sound outlet sealing assembly includes a sound outlet waterproof and breathable membrane and a sound outlet fixing member, the sound outlet waterproof and breathable membrane is disposed at the end of the front housing away from the rear housing, and the sound outlet fixing member snaps and fixes the sound outlet waterproof and breathable membrane to the front housing; An end cap sealing assembly, comprising an end cap waterproof and breathable membrane and a first annular fixing member, wherein the end cap waterproof and breathable membrane is disposed at the abutment position of the front housing and the rear housing, one side of the first annular fixing member is fixed around the rear housing, and the other side is biased against the end cap waterproof and breathable membrane to fix the end cap waterproof and breathable membrane; and A tuning hole sealing assembly includes a tuning hole waterproof and breathable membrane and a second annular fixing member. The tuning hole waterproof and breathable membrane is disposed inside the rear housing and covers the tuning hole. The outer side of the second annular fixing member is mounted around the rear housing, and the inner side of the second annular fixing member biases and fixes the tuning hole waterproof and breathable membrane to the rear housing. The rear housing also has a locking groove arranged around the inner wall of the rear housing and close to the docking position between the rear housing and the front housing. The end cap waterproof and breathable membrane extends laterally from the end cap towards the rear housing and crosses the docking position between the rear housing and the front housing to form a raised locking ring. The raised locking ring engages with the locking groove to fix the end cap waterproof and breathable membrane to the rear housing. The front housing also includes an end cap and a sound guide tube. The sound guide tube is integrally connected to the end cap. The outer wall of the sound tube has a groove. The middle part of the waterproof and breathable membrane of the sound outlet is recessed and arranged to fit into the inner cavity of the sound guide tube. The outer edge of the waterproof and breathable membrane of the sound outlet is folded towards the end cap to fit against the outer wall of the sound guide tube and is engaged in the groove of the outer wall of the sound guide tube. The middle part of the sound outlet fixing member is recessed to squeeze the waterproof and breathable membrane of the sound outlet into the inner wall of the sound guide tube. The outer edge of the sound outlet fixing member extends towards the end cap and covers the groove, and fixes the waterproof and breathable membrane of the sound outlet to the sound guide tube. The end cap also has a fixing groove. The fixing groove is arranged close to the rear housing. The part of the waterproof and breathable membrane of the end cap that fits against the end cap extends towards the end cap to form a raised fixing ring. The raised fixing ring is fixed in the fixing groove, thereby fixing the waterproof and breathable membrane of the end cap to the end cap. The rear housing also has a fitting groove. The fitting groove is arranged around the tuning hole.

2. The headphone housing with a waterproof structure according to claim 1, wherein the waterproof and breathable membrane for the tuning hole includes a blocking membrane and a fixing membrane, the blocking membrane is attached to the inner wall of the rear housing and covers the tuning hole, the fixing membrane covers the blocking membrane and forms an interlocking portion from the periphery of the blocking membrane, and the interlocking portion of the fixing membrane is fitted into the interlocking groove to ensure the sealing of the tuning hole.

3. The earphone housing with a waterproof structure according to claim 2, wherein the first annular fixing member includes a first annular fixing part and a plurality of elastic biasing parts, the first annular fixing part is fixed to the rear housing, and the plurality of elastic biasing parts extend from the first annular fixing part to the front housing and elastically bias the end cap waterproof and breathable membrane into the locking groove.

4. The earphone housing with a waterproof structure according to claim 3, wherein the second annular fixing member includes a second annular fixing part and a plurality of elastic fixing parts, the second annular fixing part is fixed to the rear housing, and the plurality of elastic fixing parts extend radially from the inner ring of the second annular fixing part toward the center, and elastically bias and fix the fitting part to the fitting groove.

5. The headphone housing with a waterproof structure according to claim 4, wherein the headphone housing with a waterproof structure further includes at least one tuning cotton, the tuning cotton being disposed between the blocking membrane and the fixing membrane.

6. The earphone housing with a waterproof structure according to claim 5, wherein the earphone housing with a waterproof structure further includes a sealing strip, the sealing strip being disposed at the position where the rear housing and the front housing meet.

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