Shell assembly and hearing aid

By designing a sealed connection between the button assembly and the waterproof structure on the hearing aid shell, the problem of water ingress in the hearing aid is solved, achieving better waterproof performance.

CN224192069UActive Publication Date: 2026-05-01LUXSHARE INTELLIGENT MANUFACTURING ELECTRONIC SERVICES (KUNSHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LUXSHARE INTELLIGENT MANUFACTURING ELECTRONIC SERVICES (KUNSHAN) CO LTD
Filing Date
2025-04-25
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing hearing aids have through holes in the casing that allow water to enter, affecting the device's functionality.

Method used

Design a housing assembly including an outer shell and a button mechanism. The button mechanism consists of a button component and a waterproof structure. The waterproof structure is fitted onto the button component and is connected to the outer shell to achieve a seal and prevent water and debris from entering.

Benefits of technology

The waterproof performance of the hearing aid has been improved, ensuring that the device is not damaged in the event of washing or accidental water drop.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of hearing aids, and discloses a housing assembly and a hearing aid, and the housing assembly comprises a housing and a button mechanism. The shell is provided with a key through hole; the key mechanism comprises a key assembly and a waterproof structure, the key assembly movably penetrates through the key through hole, and the part, located in the shell, of the key assembly can trigger a control switch in the shell; the waterproof structure sleeves the key assembly, and the circumferential edge of the waterproof structure is connected to the shell in an attached manner; when the button assembly moves relative to the housing, the waterproof structure elastically deforms. The housing assembly and the hearing aid provided by the utility model have a good waterproof effect.
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Description

Housing components and hearing aids Technical Field

[0001] This utility model relates to the field of hearing aid technology, and in particular to a housing assembly and a hearing aid. Background Technology

[0002] A hearing aid is a tool, device, or instrument that helps people with hearing impairments improve their hearing and thus enhance their ability to communicate with others. It amplifies weak sounds and transmits them into the patient's ear canal, allowing the patient to hear weaker sounds.

[0003] Currently, hearing aids typically consist of a housing and a mainboard, battery, microphone, etc., housed within the housing. The housing also features a power switch, which controls the hearing aid to turn on and off, allowing it to be activated when needed and improving battery life. In existing technology, the housing has a through-hole, and the power switch is slidably connected to the housing. Therefore, a gap exists between the power switch and the through-hole, allowing water to enter the hearing aid during cleaning or accidental submersion, affecting its functionality.

[0004] Therefore, there is an urgent need for a hearing aid with good waterproof performance. Summary of the Invention

[0005] The first objective of this invention is to provide a housing assembly with good waterproof performance.

[0006] The second objective of this invention is to provide a hearing aid with good waterproof performance.

[0007] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0008] Housing assembly, including:

[0009] The outer casing is provided with a key through-hole;

[0010] A button mechanism includes a button assembly and a waterproof structure. The button assembly is movably inserted through the button through-hole, and the portion of the button assembly located inside the housing can trigger a control switch inside the housing. The waterproof structure is sleeved on the button assembly, and the circumferential edge of the waterproof structure is fitted and connected to the housing. When the button assembly moves relative to the housing, the waterproof structure undergoes elastic deformation.

[0011] In one embodiment, the button assembly includes a button and a button cap, at least a portion of the button is located inside the housing and can trigger the control switch; at least a portion of the button cap is slidably disposed in the button through hole and connected to the button; the waterproof structure is sleeved on the button and located inside the housing, and the circumferential edge of the waterproof structure is fitted and connected to the inner wall of the housing.

[0012] In one embodiment, the button includes a button body and a button protrusion connected to one side of the button body. The button protrusion is connected to the button cap, and the waterproof structure is sleeved on the button protrusion and located between the button body and the button cap.

[0013] In one embodiment, the inner wall of the housing is provided with a shallow groove, and at least a portion of the waterproof structure is located in the shallow groove.

[0014] In one embodiment, the housing assembly further includes an inner support member fixedly disposed within the outer shell. The inner support member is used to house the control switch, and the inner support member has a pressing protrusion that abuts against the circumferential edge of the waterproof structure and is used to press the waterproof structure against the outer shell.

[0015] In one embodiment, the pressure protrusion is annular; and / or, the circumferential edge of the waterproof structure is connected to the housing by a connecting adhesive.

[0016] In one embodiment, the housing includes a first housing and a second housing that are fastened together. The first housing has a stepped structure, and the second housing has a boss that mates with the stepped structure. A sealing compound is provided between the stepped surface of the stepped structure and the boss. The surface of the boss facing the first housing has a supporting protrusion.

[0017] In one embodiment, the inner wall of the first housing is provided with a first welded body, and the inner wall of the second housing is provided with a second welded body, wherein the first welded body and the second welded body are welded by ultrasonic welding.

[0018] In one embodiment, the first welded body extends into the second housing; and / or, multiple first welded bodies and multiple second welded bodies are provided in a one-to-one correspondence.

[0019] A hearing aid, including the housing assembly as described above; the hearing aid also includes a control switch disposed within the housing, the control switch being actuated by movement of the button assembly relative to the housing.

[0020] The housing assembly and hearing aid provided by this utility model have at least the following beneficial effects:

[0021] The outer casing has a button through-hole. The button mechanism includes a button assembly and a waterproof structure. The button assembly is movably inserted through the button through-hole. The circumferential edge of the waterproof structure is fitted and connected to the outer casing, and the waterproof structure is sleeved on the button assembly. This makes the waterproof structure and the outer casing, as well as the waterproof structure and the button assembly, relatively sealed. Thus, the cooperation between the waterproof structure and the button assembly achieves the separation between the inside of the outer casing and the outside. Water and other debris from the outside of the outer casing will not enter the outer casing through the gap between the outer casing and the button assembly. This ensures that the waterproof effect of the casing assembly is not affected by the button mechanism, and it has a high waterproof performance. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0023] Figure 1 is a structural schematic diagram of a hearing aid device provided in an embodiment of the present invention;

[0024] Figure 2 is a first exploded view of a hearing aid device provided in an embodiment of the present invention;

[0025] Figure 3 is a second exploded view of a hearing aid device provided in an embodiment of the present invention;

[0026] Figure 4 is a top view of a hearing aid device provided in an embodiment of the present invention;

[0027] Figure 5 is the AA cross-sectional view of this utility model shown in Figure 4;

[0028] Figure 6 is an enlarged view of section C shown in Figure 5 of this utility model;

[0029] Figure 7 is a cross-sectional view of BB shown in Figure 4 of this utility model;

[0030] Figure 8 is a structural schematic diagram of the second housing provided in an embodiment of the present invention;

[0031] Figure 9 is a third exploded view of a hearing aid device provided in an embodiment of the present invention;

[0032] Figure 10 is a schematic diagram of the assembly of the support structure and the motherboard assembly provided in an embodiment of the present invention;

[0033] Figure 11 is a schematic diagram of the first structure of the support structure provided in an embodiment of the present invention;

[0034] Figure 12 is a schematic diagram of the second structure of the support structure provided in an embodiment of the present invention;

[0035] Figure 13 is a structural schematic diagram of a motherboard assembly provided in an embodiment of the present invention;

[0036] Figure 14 is an enlarged view of point D shown in Figure 5 of this utility model;

[0037] Figure 15 is a structural schematic diagram of an antenna assembly provided in an embodiment of the present invention;

[0038] Figure 16 is a schematic diagram of the elastic structure provided in an embodiment of the present invention;

[0039] Figure 17 is a structural schematic diagram of the first housing provided in an embodiment of the present invention.

[0040] In the picture:

[0041] 100. Housing assembly; 1. Outer shell; 11. First housing; 111. Stepped structure; 1111. Stepped surface; 112. First welded body; 12. Second housing; 121. Boss; 1211. Supporting protrusion; 122. Second welded body; 13. Inner cavity; 14. Sealing colloid; 15. Sound hole; 16. Key through hole; 17. Shallow groove; 18. Snap-fit ​​strip; 2. Key mechanism; 21. Key assembly; 211. Key; 2 111. Button body; 2112. Button protrusion; 212. Button cap; 22. Waterproof structure; 221. Waterproof hole; 23. Connecting colloid; 3. Inner support component; 31. Pressing protrusion; 32. Switch groove; 200. Support structure; 210. Half groove; 220. First enclosure; 230. Second enclosure; 240. Limiting structure; 241. Limiting post; 242. Limiting hook; 243. Limiting block; 250. Positioning slot; 260. First support part; 270. First limiting part; 280. Movement gap; 290. Support plate; 300. Battery assembly; 400. Main board assembly; 410. Main board body; 411. Main body part; 412. Side plate part; 4121. Limiting and mating structure; 420. Extension structure; 421. Output end; 430. Limiting space; 440. Converging part; 441. First connecting arm; 442. Second connecting arm; 442 1. Converging surface; 500. Antenna assembly; 510. Extension portion; 520. Positioning block; 540. Perforation; 550. Snap-fit ​​groove; 600. Elastic structure; 610. Spring body; 611. Slide groove; 620. Bending portion; 621. Abutting arc surface; 622. Slider; 700. Microphone; 910. Charging end; 920. Connector; 930. Control switch; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0042] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0043] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0047] In the description of this embodiment, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., are based on the orientation or positional relationships shown in the accompanying drawings and are only for ease of description and simplification of operation. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0048] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or it can be located in between the component.

[0049] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0050] This embodiment provides a housing assembly that can be applied to hearing aids and has good waterproof performance.

[0051] As exemplarily shown in Figures 1 to 7, the housing assembly 100 includes a housing 1 and a button mechanism 2. The housing 1 is provided with a button through-hole 16 for mounting the button mechanism 2. The button through-hole 16 extends through the wall of the housing 1.

[0052] To improve the waterproof performance of the hearing aid, as exemplarily shown in FIG2, the button mechanism 2 includes a button assembly 21 and a waterproof structure 22. The button assembly 21 is movably disposed through the button through-hole 16, and the portion of the button assembly 21 located inside the housing 1 can trigger a control switch 930 (e.g., a push switch) inside the housing 1. The button assembly 21 triggering the control switch 930 can be described as the button assembly 21 touching the push switch. As shown in FIGS. 6 and 7, the waterproof structure 22 is sleeved on the button assembly 21. In some optional embodiments, the connection between the waterproof structure 22 and the button assembly 21 is sealed, that is, the waterproof structure 22 is in close contact with the button assembly 21. The circumferential edge of the waterproof structure 22 is fitted and connected to the housing 1. By providing the waterproof structure 22, both the waterproof structure 22 and the housing 1 are connected, as are the waterproof structure 22 and the button assembly 21, thereby achieving separation between the interior of the housing 1 and the outside, and improving the waterproof performance of the hearing aid.

[0053] It should be noted that the waterproof structure 22 in this embodiment is capable of elastic deformation. Specifically, the waterproof structure 22 undergoes elastic deformation when the button assembly 21 moves relative to the outer shell 1. By providing the waterproof structure 22, when the button assembly 21 is pressed and moves relative to the outer shell 1, the waterproof structure 22 can undergo elastic deformation, preventing it from becoming immobile due to pulling, thus ensuring the function of the button assembly 21. Optionally, the waterproof structure 22 can be made of an elastic material, such as silicone or rubber; this embodiment does not limit this.

[0054] The housing assembly 100 provided in this embodiment has a housing 1 with a button through hole 16. The button mechanism 2 includes a button assembly 21 and a waterproof structure 22. The button assembly 21 is movably inserted through the button through hole 16. The circumferential edge of the waterproof structure 22 is fitted and connected to the housing 1, and the waterproof structure 22 is sleeved on the button assembly 21. This makes the waterproof structure 22 and the housing 1, as well as the waterproof structure 22 and the button assembly 21, relatively sealed. Thus, the cooperation between the waterproof structure 22 and the button assembly 21 achieves the separation between the inside of the housing 1 and the outside. Water and other debris outside the housing 1 will not enter the housing 1 through the gap between the housing 1 and the button assembly 21. Therefore, the waterproof effect of the housing assembly 100 will not be affected by the setting of the button mechanism 2, and it has high waterproof performance.

[0055] Optionally, this embodiment provides a button assembly 21, as shown in FIG3. The button assembly 21 includes a button 211 and a button cap 212. At least a portion of the button 211 is located inside the housing 1 and can trigger the control switch 930. At least a portion of the button cap 212 is slidably disposed in the button through hole 16 and connected to the button 211.

[0056] In one embodiment, as shown in FIG6, the waterproof structure 22 is located inside the housing 1, and the circumferential edge of the waterproof structure 22 is fitted and connected to the inner wall of the housing 1. Furthermore, the waterproof structure 22 is sleeved on and connected to the button 211. In some optional embodiments, as shown in FIG3, the waterproof structure 22 has a waterproof hole 221, a portion of the button 211 passing through the waterproof hole 221 and connected to the wall of the waterproof hole 221.

[0057] In other embodiments, the waterproof structure 22 may also be located outside the housing 1, and the circumferential edge of the waterproof structure 22 may be attached to the outer wall of the housing 1. In this case, the waterproof structure 22 may be fitted onto the button cap 212, and the button assembly 21 may also be sealed.

[0058] In some optional embodiments, the connection between the button cap 212 and the button 211 can be welding. For example, the button cap 212 and the button 211 can be welded by ultrasonic welding. This embodiment does not limit this.

[0059] In one possible implementation, as shown in Figure 3 or Figure 6, the button 211 includes a button body 2111 and a button protrusion 2112 connected to one side of the button body 2111. The button protrusion 2112 is connected to a button cap 212, and the end of the button protrusion 2112 facing away from the button body 2111 can extend into the button cap 212 and be connected to the button cap 212 by ultrasonic welding. A waterproof structure 22 is fitted onto the button protrusion 2112, that is, the button protrusion 2112 is disposed through a waterproof hole 221. Furthermore, the waterproof structure 22 is located between the button body 2111 and the button cap 212. By setting the button protrusion 2112, the connection between the button 211 and the button cap 212 is achieved, and the connection area between the button 211 and the waterproof structure 22 is small, making it easier to control the sealing effect between the two.

[0060] In some optional embodiments, to facilitate the assembly of the waterproof structure 22, as shown in FIG8, a shallow groove 17 is provided on the inner wall of the outer casing 1. At least a portion of the waterproof structure 22 is located within the shallow groove 17. By providing the shallow groove 17, the waterproof structure 22 can be positioned and installed without occupying excessive space inside the outer casing 1.

[0061] To improve the sealing effect between the waterproof structure 22 and the inner wall of the outer casing 1, in some optional embodiments, as shown in FIG3, the casing assembly 100 further includes an inner support member 3 fixedly disposed within the outer casing 1. The inner support member 3 is used to house the control switch 930, and the inner support member 3 is provided with a pressing protrusion 31, which abuts against the circumferential edge of the waterproof structure 22 and is used to press the waterproof structure 22 against the inner wall of the outer casing 1, so that the waterproof structure 22 can be tightly in contact with the inner wall of the outer casing 1, thereby further ensuring the sealing and waterproofing effect.

[0062] Optionally, as shown in Figure 6, the inner support member 3 has a switch groove 32 on its surface facing the button through hole 16. The control switch 930 is disposed in the switch groove 32, so that the control switch 930 does not affect the contact between the inner support member 3 and the outer shell 1, and the control switch 930 does not occupy too much space. The pressing protrusion 31 surrounds the outer periphery of the switch groove 32.

[0063] Optionally, to improve the uniformity of the external force applied to the waterproof structure 22, in this embodiment, the pressing protrusion 31 is annular to increase the contact area between the pressing protrusion 31 and the waterproof structure 22. In some optional embodiments, the annular pressing protrusion 31 can seal against the waterproof structure 22 to form a double-sealing structure, further improving the sealing effect of the housing assembly 100.

[0064] To reduce the risk of the waterproof structure 22 separating from the outer shell 1, optionally, as shown in FIG3, the circumferential edge of the waterproof structure 22 is bonded to the inner wall of the outer shell 1 by a connecting adhesive 23. By providing the connecting adhesive 23, the connection strength between the waterproof structure 22 and the outer shell 1 can be improved, and the connecting adhesive 23 can also play a sealing role. Exemplarily, the connecting adhesive 23 includes, but is not limited to, backing adhesive.

[0065] This embodiment also provides a hearing aid with good waterproof performance, and it can also have a small size and light weight, meeting the requirements of miniaturization.

[0066] As exemplarily shown in Figures 1 to 17, the hearing aid includes the aforementioned housing assembly 100. The hearing aid also includes a control switch 930, which is disposed within the housing 1. Movement of the button assembly 21 relative to the housing 1 can trigger the control switch 930 to control the hearing aid.

[0067] In some optional embodiments, as shown in FIG2, the outer shell 1 may include a first shell 11 and a second shell 12 that are snapped together, wherein the first shell 11 and the second shell 12 are interconnected to form an inner cavity 13. By providing the first shell 11 and the second shell 12 that are connected, the assembly of the hearing aid can be facilitated and the assembly efficiency can be improved. It should be noted that in this embodiment, the shell located at the lower position in FIG2 is taken as the first shell 11 and the shell located at the upper position is taken as the second shell 12 for illustration. Of course, it can be understood that the shell located at the upper position can also be the first shell 11 and the shell located at the lower position can be the second shell 12. This embodiment does not limit this. Optionally, the button through hole 16 may be provided on the second shell 12.

[0068] As shown in Figure 2, the hearing aid also includes a support structure 200 disposed within the inner cavity 13. The support structure 200 can serve as the main support within the hearing aid. Components within the hearing aid can be directly mounted on the support structure 200, or they can be positioned between the support structure 200 and the outer shell 1 for positioning. This embodiment does not limit this. For example, as shown in Figure 9, the support structure 200 is provided with a semi-groove 210.

[0069] As shown in Figure 2, the hearing aid also includes a battery assembly 300 and a mainboard assembly 400. The battery assembly 300 serves as the power supply for the entire hearing aid, powering the mainboard assembly 400 and other electronic components. The mainboard assembly 400 is electrically connected to the battery assembly 300. At least a portion of the battery assembly 300 is located in a semi-groove 210, allowing it to be positioned by the support structure 200.

[0070] For example, as shown in Figures 5 to 9, the motherboard assembly 400 includes a connected motherboard body 410 and an extension structure 420. The connection between the motherboard body 410 and the extension structure 420 is electrical. The motherboard body 410 is disposed on the support structure 200. In this embodiment, as shown in Figure 5, one end of the extension structure 420 is connected to the motherboard body 410, and the other end is bent towards the battery assembly 300, cooperating with the semi-groove 210 to form a limiting space 430 for limiting the battery assembly 300. The shape of the limiting space 430 matches the shape of the battery assembly 300 to restrict the movement of the battery assembly 300 relative to the extension structure 420 and the support structure 200. Furthermore, the battery assembly 300 is also electrically connected to the motherboard assembly 400, thereby achieving the limiting of the battery assembly 300 within the housing 1. In this embodiment, the extension structure 420 and / or the motherboard assembly 400 are electrically connected to the battery assembly 300, enabling the battery assembly 300 to provide electrical energy to the extension structure 420 and / or the motherboard assembly 400.

[0071] It should be noted that if the support structure 200 forms a groove for limiting the battery assembly 300 on its own, the size of the support structure 200 needs to be set larger than the battery assembly 300 in order to achieve the purpose of limiting the battery assembly 300. In addition, the motherboard surrounds the outer periphery of the support structure 200 to realize electrical connection with other electronic components. This results in the support structure 200 and the motherboard being very large in size and weight.

[0072] The hearing aid provided in this embodiment has a support structure 200 that cooperates with a part of the main board assembly 400 to form a limiting space 430 for limiting the battery assembly 300. Specifically, the main board assembly 400 includes a main board body 410 and an extension structure 420. The main board body 410 is disposed on the support structure 200. One end of the extension structure 420 is connected to the main board body 410, and the other end is bent toward the battery assembly 300 and cooperates with the semi-groove 210 of the support structure 200 to form the limiting space 430 for limiting the battery assembly 300. This allows the extension structure 420 to not only be used for electrical connection with other electrical components, but also for limiting the battery assembly 300, improving the utilization rate of the extension structure 420. The support structure 200 does not need to limit the battery assembly 300 separately. Therefore, the size of the support structure 200 can be set smaller than the size of the battery assembly 300, so that the overall size of the support structure 200 and the main board assembly 400 can be smaller and the weight can be lighter, making the hearing aid more miniaturized and lightweight.

[0073] Of course, hearing aids also include key hearing aid components such as microphone 700, receiver, and programming accessories. These are existing components of hearing aids, and their specific structures can be found in existing hearing aids, so they will not be described in detail here. These key hearing aid components can be placed inside the housing 1 as needed, or they can be placed outside the housing 1 in other ways, which will not be described in detail here.

[0074] The battery assembly 300 in this embodiment typically includes a rechargeable battery (not shown in the figure) and a battery circuit board (not shown in the figure) connected to the rechargeable battery. The rechargeable battery can be charged and discharged to enable recycling. The battery circuit board is electrically connected to the positive and negative terminals of the rechargeable battery and to the main board assembly 400, realizing the electrical connection between the rechargeable battery and the main board assembly 400. The shape of the rechargeable battery can be circular, square, etc., and this embodiment does not limit it.

[0075] In some optional embodiments, the hearing aid is further provided with a charging terminal 910, which is electrically connected to a rechargeable battery so that an external power source can charge the rechargeable battery through the charging terminal 910. The charging terminal 910 can be a charging port, a wireless charging structure, or a common charging structure in the prior art, and this embodiment does not limit it to any particular type.

[0076] For example, as shown in FIG9, the extension structure 420 is provided with an output terminal 421, which is used to electrically connect to the charging terminal 910, so that the charging terminal 910 is electrically connected to the rechargeable battery through the extension structure 420. Optionally, the output terminal 421 of the extension structure 420 can be a circuit board. With this configuration, the extension structure 420 is used not only to electrically connect to the charging terminal 910, but also to act as a limiting member to limit the position of the battery assembly 300.

[0077] To optimize the positioning of the output terminal 421, battery assembly 300, and mainboard assembly 400, resulting in a smaller hearing aid that meets requirements, in this embodiment, as shown in Figure 5, the mainboard body 410 is located on one side of the battery assembly 300 in the first direction X, and the output terminal 421 is located on the other side of the battery assembly 300 in the first direction X. The first direction X, the width direction of the outer shell 1, and the thickness direction of the outer shell 1 are all perpendicular to each other. This arrangement ensures that the output terminal 421, battery assembly 300, and mainboard body 410 are sequentially arranged in a direction approximately equal to the length direction of the outer shell 1, preventing the hearing aid from being too thick or too wide, facilitating its use, and broadening its application range. In some optional embodiments, the first direction X can be the length direction of the outer shell 1.

[0078] Optionally, the charging terminal 910 is located at the end of the housing 1 in the first direction X, closer to the output terminal 421, so that the charging terminal 910 and the output terminal 421 are close to each other, which facilitates the electrical connection between the two. In Figure 5, the charging terminal 910 is located at the left end of the housing 1.

[0079] In some optional embodiments, as shown in FIG5, the extension structure 420 extends circumferentially along the battery assembly 300, that is, the extension structure 420 limits the battery assembly 300 in a direction perpendicular to the axis of the battery assembly 300. Since the extension structure 420 is essentially a circuit board, which can be a rigid circuit board or a flexible circuit board, in order to improve the limiting effect, the circuit board in this embodiment is a rigid circuit board. In this case, the extension structure 420 can be assembled from multiple circuit board segments to conform to the shape of the battery assembly 300. Since the limiting of the battery assembly 300 in the axial direction can be achieved by the housing 1, the extension structure 420 in this embodiment is mainly used to limit the battery assembly 300 in a direction perpendicular to the axis of the battery assembly 300. Of course, it is understood that the extension structure 420 can also limit the battery assembly 300 in the axial direction of the battery assembly 300, and this embodiment does not limit it in this way.

[0080] Optionally, this embodiment provides a support structure 200, as shown in FIG10. The support structure 200 is provided with a first enclosure 220 opposite to the battery assembly 300 in the second direction Y and a second enclosure 230 extending circumferentially along the battery assembly 300. The first enclosure 220 and the second enclosure 230 cooperate to form a semi-groove 210; in this embodiment, the second direction Y is the thickness direction of the battery assembly 300.

[0081] By setting the first enclosure 220, the battery assembly 300 can be blocked in the second direction Y. It should be noted that the first enclosure 220 can be set on one or both sides of the battery assembly 300 in the second direction Y. This embodiment does not limit this. Figure 10 is a schematic diagram of the battery assembly 300 having the first enclosure 220 on one side in the second direction Y. In this case, the other side of the battery assembly 300 in the second direction Y can be limited by the outer shell 1, so that the structure of the support structure 200 is smaller and lighter. By setting the second enclosure 230, the second enclosure 230 can cooperate with the extension structure 420 to limit the battery assembly 300 and prevent the battery assembly 300 from moving.

[0082] In some optional embodiments, as shown in FIG11, the support structure 200 further includes a support plate 290, and the first enclosure 220 and the second enclosure 230 are both connected to the support plate 290. Optionally, the second enclosure 230 may be composed of multiple blocks, which are spaced apart along the circumference of the battery assembly 300, so that the weight of the second enclosure 230 can be smaller while limiting the battery assembly 300.

[0083] There are various ways to configure the mainboard body 410. This embodiment provides one configuration method. Optionally, as shown in FIG11, the support structure 200 is provided with a limiting structure 240. As shown in FIG10, the mainboard body 410 is disposed on the support structure 200 and connected to the support structure 200 through the limiting structure 240. By configuring the mainboard body 410 on the support structure 200, the mainboard body 410 does not need to have a separate support component, reducing the number of components in the hearing aid and facilitating the assembly of the hearing aid. The connection between the mainboard body 410 and the support structure 200 through the limiting structure 240 can reduce the size of the support structure 200, which is beneficial to the miniaturization of the support structure 200.

[0084] Optionally, limiting structures 240 are provided on both sides of the support structure 200 in the thickness direction. Furthermore, as shown in FIG13, the main body 410 includes a main body 411 and two side plate parts 412, with the two side plate parts 412 located on the same side of the main body 411. An extension structure 420 is connected to the main body 411, that is, the extension structure 420 is electrically connected to the main body 411. Both side plate parts 412 are electrically connected to the main body 411, and the two side plate parts 412 are located on both sides of the support structure 200 in the thickness direction, and are connected to the limiting structures 240 on the corresponding side of the support structure 200. That is, the side plate part 412 located on one side of the support structure 200 is connected through the limiting structure 240 on that side, and the side plate part 412 located on the other side of the support structure 200 is connected through the limiting structure 240 on the other side, thus fixing the two side plate parts 412. Optionally, when the support structure 200 includes a support plate 290, the limiting structure 240 is disposed on the support plate 290, and the support plate 290 is fixed in the space formed by the main body 411 and the two side plate parts 412.

[0085] It should be noted that, in order to improve the space utilization inside the casing 1, the thickness directions of the casing 1, the battery assembly 300, the support structure 200, and the main body 410 are all consistent.

[0086] In one possible implementation, as shown in FIG13, the side plate portion 412 is provided with a limiting fit structure 4121. The limiting fit structure 4121 cooperates with the limiting structure 240 to realize the connection between the main board body 410 and the support structure 200. For example, the limiting structure 240 can be snapped or interference-fitted with the limiting fit structure 4121. The setting of the limiting fit structure 4121 makes the limiting structure of the side plate portion 412 simpler and also facilitates the assembly of the side plate portion 412 and the support structure 200.

[0087] The limiting structure 240 can have various structures, as long as it can achieve the limiting purpose. In one embodiment, as shown in Figures 11 and 12, each side of the support plate 290 may include multiple limiting structures 240. Some of these multiple limiting structures 240 may be limiting posts 241, some may be limiting hooks 242, some may be limiting blocks 243, etc. This embodiment does not limit them. When the limiting structure 240 is a limiting post 241, the limiting mating structure 4121 can be a limiting groove. The limiting post 241 engages with the limiting groove, thereby achieving the connection between the main board body 410 and the support structure 200. When the limiting structure 240 is a limiting hook 242, the limiting mating structure 4121 can be a limiting groove, a limiting plane, etc. The limiting hook 242 is hooked onto the limiting groove or the limiting plane to achieve the connection between the main board body 410 and the support structure 200. When the limiting structure 240 is a limiting block 243, the limiting mating structure 4121 can be a block provided on the side plate 412. The limiting is achieved through the abutment between the limiting block 243 and the block, thereby achieving the connection. There are various specific structures and limiting methods of the limiting structure 240, which will not be listed one by one in this embodiment.

[0088] To enrich the functionality of the hearing aid provided in this embodiment, as shown in Figure 9, the hearing aid further includes an antenna assembly 500, which is disposed on the support structure 200. In some optional embodiments, the antenna assembly 500 is disposed on one side of the support structure 200 in the third direction Z. The third direction Z is perpendicular to the thickness direction of the support structure 200 and perpendicular to the length direction of the outer shell 1. In the orientation shown in Figure 9, the antenna assembly 500 is located above the support structure 200. The antenna assembly 500 is electrically connected to the main board assembly 400. In this embodiment, the antenna assembly 500 is electrically connected to the main board body 410. The antenna assembly 500 is used to receive and / or transmit signals to enable communication between the hearing aid and the outside world. It should be noted that the antenna assembly 500 being disposed on the support structure 200 can be understood as the antenna assembly 500 being fixedly connected to the support structure 200, detachably connected, etc., and this embodiment does not limit this.

[0089] In some optional embodiments, the inner support 3 can form part of the antenna assembly 500, that is, the antenna assembly 500 may include the inner support 3. It is understood that the inner support 3 and the antenna assembly 500 can also be independent of each other, and this embodiment does not limit this. In this embodiment, the inner support 3 is made of a non-metallic material, for example, plastic. At least a portion of the antenna assembly 500 in this embodiment is made of a metallic material to enable electrical conductivity.

[0090] Optionally, the antenna assembly 500 and the motherboard assembly 400 can be electrically connected in various ways. This embodiment provides a connection method between the antenna assembly 500 and the motherboard assembly 400.

[0091] For example, as shown in FIG10, the hearing aid further includes an elastic structure 600, through which the antenna assembly 500 and the main board body 410 are electrically connected. The elastic structure 600 abuts between the antenna assembly 500 and the main board assembly 400, and the antenna assembly 500 and the main board assembly 400 are electrically connected through the elastic structure 600.

[0092] In some optional embodiments, the elastic structure 600 in this embodiment is capable of elastic deformation and can elastically abut against the antenna assembly 500 and the motherboard assembly 400. This reduces the distance requirement between the antenna assembly 500 and the motherboard assembly 400, thereby reducing the assembly precision requirements and assembly difficulty of the antenna assembly 500 and the motherboard assembly 400, and improving the assembly efficiency of the hearing aid. Furthermore, since the elastic structure 600 is deformable, its elastic abutment position against the antenna assembly 500 or the motherboard assembly 400 can be a more flexible area, further reducing the requirements for the relative position of the antenna assembly 500 and the motherboard assembly 400.

[0093] In some optional embodiments, the antenna assembly 500 has at least one extension portion 510 extending toward the support structure 200. Each extension portion 510 has at least one elastic structure 600 between it and the main board body 410. The elastic structure 600 abuts against the corresponding extension portion 510 and is electrically connected to it, thereby achieving electrical connection between each extension portion 510 and the main board assembly 400. By providing the extension portions 510, it is convenient for the antenna assembly 500 and the main board body 410 to be electrically connected via the elastic structure 600.

[0094] As shown in Figure 7, two elastic structures 600 are provided, which abut against the two side plate portions 412 respectively, and abut against the opposing surfaces of the two side plate portions 412. As another example, two extension portions 510 are also provided, which are disposed opposite each other in the thickness direction of the main body 410. The two elastic structures 600 abut against the two extension portions 510 respectively, thereby realizing the electrical connection between the antenna assembly 500 and the main body 410. By providing two elastic structures 600, the electrical connection area and electrical connection strength between the antenna assembly 500 and the main body 410 are increased.

[0095] Further optionally, as shown in Figure 11, the support structure 200 is provided with a positioning slot 250. Correspondingly, as shown in Figure 15, a positioning block 520 is provided between the two extensions 510. The positioning block 520 is positioned in the positioning slot 250. That is, the shape of the positioning slot 250 matches the shape of the positioning block 520, so that the positioning of the antenna assembly 500 by the support structure 200 can be achieved through the mutually cooperating positioning slot 250 and positioning block 520, thereby limiting the relative position of the antenna assembly 500 and the support structure 200. Since the position of the main board body 410 relative to the support structure 200 is fixed, by limiting the relative position of the antenna assembly 500 and the support structure 200, the relative position of the antenna assembly 500 and the main board body 410 can be limited, which facilitates the electrical connection between the two.

[0096] In this embodiment, as shown in FIG7, the two extension portions 510 are in contact with the two side walls in the thickness direction of the support structure 200. Specifically, the two extension portions 510 are in contact with the two side walls in the thickness direction of the support plate 290. With this arrangement, the two extension portions 510 and the support plate 290 are clamped together, thereby restricting the position of the antenna assembly 500 relative to the support plate 290 in the thickness direction, and realizing the limiting of the antenna assembly 500.

[0097] In this embodiment, the antenna assembly 500 is mounted on the support structure 200. The support structure 200 is also used to limit the battery assembly 300 and the motherboard assembly 400, so that the antenna assembly 500, the battery assembly 300 and the motherboard assembly 400 can all be fixed in the housing 1 through the support structure 200. This improves the utilization rate of the support structure 200, enriches the function of the support structure 200, reduces the number of support plates 290 that need to be set in the housing 1, and further improves the miniaturization and weight reduction of the hearing aid.

[0098] Optionally, the elastic structure 600 can have various forms. This embodiment provides an elastic structure 600, as shown in FIG16. The elastic structure 600 includes a spring body 610 and a bent portion 620 connected to one end of the spring body 610 and located on one side of the spring body 610. The spring body 610 abuts against one of the extension portion 510 of the antenna assembly 500 and the mainboard assembly 400. The bent portion 620 has an abutting arc surface 621, which abuts against the other of the mainboard assembly 400 and the extension portion 510. By providing the abutting arc surface 621, arc surface contact with the extension portion 510 of the antenna assembly 500 or the mainboard body 410 can be achieved. By providing the abutting arc surface 621, arc surface contact with the antenna assembly 500 or the mainboard body 410 can be achieved, reducing the risk of damage to the antenna assembly 500 or the mainboard body 410 and providing higher reliability. In some alternative embodiments, the abutting arc surface 621 can be formed by bending the bend 620. In other embodiments, the abutting arc surface 621 can also be formed by machining spherical protrusions on the bend 620, which is not limited in this embodiment.

[0099] To enhance the contact force between the bent portion 620 and the antenna assembly 500 or the main board body 410, in this embodiment, referring to Figure 16, a groove 611 is provided on the side of the spring body 610 facing the bent portion 620. A slider 622 is provided on the end of the bent portion 620 facing away from the spring body 610 (i.e., the end of the bent portion 620 not connected to the spring body 610), abutting against the spring body 610. The slider 622 is slidably placed in the groove 611. When the distance between the antenna assembly 500 and the main board body 410 is different, the elastic structure 600 can slide in the groove 611 via the slider 622, adjusting the distance between the abutting arc surface 621 on the bent portion 620 and the spring body 610, thereby adjusting the height of the elastic structure 600 so that the bent portion 620 of the elastic structure 600 smoothly abuts against the antenna assembly 500 or the main board body 410. As can be seen, the elastic structure 600 provided in this embodiment has a wide range of applications, stronger versatility, and a simpler structure.

[0100] To improve the waterproof performance of the hearing aid provided in this embodiment, as shown in FIG2, the first housing 11 is provided with a stepped structure 111, and as shown in FIG8, the second housing 12 is provided with a boss 121 that cooperates with the stepped structure 111. The boss 121 can be inserted into the stepped structure 111 to limit the position between the first housing 11 and the second housing 12. Furthermore, the stepped structure 111 includes a stepped surface 1111 and a stepped side surface. The stepped side surface abuts against the side surface of the boss 121, thereby limiting the relative position of the first housing 11 and the second housing 12 in the wall thickness direction of the first housing 11. As shown in FIG7, a sealing adhesive 14 is provided between the stepped surface 1111 of the stepped structure 111 and the boss 121. The sealing adhesive 14 is used to seal the gap between the stepped surface 1111 and the top surface of the boss 121, thereby achieving a seal at the connection position of the first housing 11 and the second housing 12 and improving the waterproof performance of the outer shell 1.

[0101] For example, the sealant 14 is usually a hot melt adhesive. When forming the sealant 14, it is necessary to first apply the adhesive to the top surface of the step surface 1111 or the boss 121, then assemble the first housing 11 and the second housing 12, and squeeze the adhesive tightly so that the adhesive fills the space between the top surface of the step surface 1111 and the boss 121. After standing for 7 or 8 hours, the adhesive cures, thus achieving the connection and sealing between the first housing 11 and the second housing 12.

[0102] To ensure sufficient adhesive between the stepped surface 1111 and the top surface of the boss 121, as shown in Figure 8, a supporting protrusion 1211 is provided on the surface of the boss 121 facing the first housing 11 (i.e., the top surface of the boss 121). By providing the supporting protrusion 1211, the amount of adhesive can be controlled as a reference during the dispensing process. The adhesive can be controlled to completely cover the supporting protrusion 1211 to ensure the dispensing height, thereby ensuring the amount of adhesive between the first housing 11 and the second housing 12, thus ensuring the connection strength and sealing performance between the first housing 11 and the second housing 12.

[0103] Optionally, multiple support protrusions 1211 are provided, and the multiple support protrusions 1211 are evenly and spaced apart along the circumference of the second housing 12.

[0104] Because the sealing colloid 14 can only be obtained after standing for 7 or 8 hours after dispensing, the hearing aid cannot be moved to the next assembly station (or testing station) during the curing process, resulting in low production efficiency of the hearing aid.

[0105] To address the issue of low production efficiency, this embodiment improves production efficiency by modifying the first housing 11 and the second housing 12. Specifically, as shown in Figure 17, the inner wall of the first housing 11 is provided with a first welding body 112, and as shown in Figure 8, the inner wall of the second housing 12 is provided with a second welding body 122. The first welding body 112 and the second welding body 122 are welded using ultrasonic welding. With this configuration, after the first housing 11 and the second housing 12 are glued together, solder (e.g., solder paste) can be applied to the first welding body 112 and / or the second welding body 122. Then, the first housing 11 and the second housing 12 are snapped together, and then the first welding body 112 and the second welding body 122 are welded together using ultrasonic welding, thereby achieving pre-fixation of the first housing 11 and the second housing 12 through the welded first welding body 112 and the second welding body 122. The first housing 11 and the second housing 12 will not move relative to each other, therefore, the next process can be carried out without waiting for the sealant to cure, thereby improving the production efficiency of hearing aids.

[0106] In order to improve the strength of the pre-fixed first housing 11 and the second housing 12, in this embodiment, multiple first welding bodies 112 and second welding bodies 122 are provided in a one-to-one correspondence, and each first welding body 112 and its corresponding second welding body 122 are welded by ultrasonic welding.

[0107] If the connection point between the first welded body 112 and the second welded body 122 is too close to the bonding point between the first housing 11 and the second housing 12, ultrasonic welding may affect the properties of the sealant 14. In one possible embodiment, referring to Figures 7 and 8, the first welded body 112 extends into the second housing 12. With this configuration, the welding point between the first welded body 112 and the second welded body 122 is far from the sealant 14, ensuring that ultrasonic welding does not affect the properties of the sealant 14, thereby guaranteeing the sealing and bonding effect of the sealant 14 between the first housing 11 and the second housing 12. Of course, it is understood that the second welded body 122 may also extend into the first housing 11; this embodiment does not limit this.

[0108] As exemplarily shown in FIG2, the hearing aid further includes at least one microphone 700 disposed within the housing 1. The microphone 700 is used to generate sound and transmit it to the user's ear. The hearing aid may have one microphone 700 or multiple microphones 700, which is not limited in this embodiment. Furthermore, as shown in FIG1, each microphone 700 corresponds to at least one sound hole 15 on the housing 1, so that sound can be transmitted. Exemplarily, the sound hole 15 is disposed on the second housing 12.

[0109] Optionally, as shown in FIG13, the motherboard assembly 400 further includes a collection section 440 connected to the motherboard body 410, and at least one microphone 700 is electrically connected to the collection section 440. By setting the collection section 440, the multiple microphones 700 are combined, which facilitates the electrical connection between the microphones 700 and the motherboard body 410.

[0110] In some optional embodiments, referring to FIG13, the gathering portion 440 includes a first connecting arm 441 and a second connecting arm 442 connected in sequence. The first connecting arm 441 is electrically connected to the main board body 410. Specifically, one end of the first connecting arm 441 is electrically connected to one of the two side plate portions 412. The other end of the first connecting arm 441 is electrically connected to the second connecting arm 442. The second connecting arm 442 is angled to the first connecting arm 441, such that the extending directions of the first connecting arm 441 and the second connecting arm 442 are consistent with the extending direction of the outer casing 1, thereby fully utilizing the internal space of the outer casing 1. Furthermore, the second connecting arm 442 has a gathering surface 4421, to which the microphone 700 is electrically connected. Optionally, a circuit board may be provided on the gathering surface 4421, and the microphone 700 can be connected to the circuit board on the gathering surface 4421 via a flexible circuit board, wires, etc., thereby achieving electrical connection.

[0111] Optionally, as shown in Figure 11, the support structure 200 includes a first support portion 260 and a first limiting portion 270, which are disposed on the support plate 290. Both the first support portion 260 and the second support portion face the gathering portion 440. Specifically, as shown in Figure 14, the first connecting arm 441 is supported by the first support portion 260, thereby preventing deformation of the first connecting arm 441 and ensuring that the first connecting arm 441 does not move relative to the support structure 200. The first limiting portion 270 is disposed on the side of the second connecting arm 442 facing away from the gathering surface 4421, and forms a movable gap 280 between the limiting portion 270 and the second connecting arm 442. This movable gap 280 allows the second connecting arm 442 to move, so that when the microphone 700 is connected to the gathering portion 440, the gathering portion 440 can have a certain amount of space relative to the support structure 200 to compensate for the positional deviation between the gathering portion 440 and the microphone 700, as well as the size deviation between the gathering portion 440 and the microphone 700, thereby reducing the assembly difficulty of the hearing aid.

[0112] In some optional embodiments, as shown in FIG2, the microphone 700 can be disposed on one side of the antenna assembly 500 in the thickness direction, and the component for electrically connecting the microphone 700 and the collection part 440 can be disposed on the other side in the thickness direction of the antenna assembly 500. In this case, as shown in FIG13, the antenna assembly 500 is also provided with a through hole 540, so that the collection part 440 and the microphone 700 can be electrically connected through the through hole 540. Of course, it is understood that the microphone 700 can also be connected to the housing 1, or the microphone 700 can also be connected to the support structure 200, which is not limited in this embodiment.

[0113] Please refer to Figure 15. One end of the antenna assembly 500 may also be provided with a snap-fit ​​groove 550, as shown in Figure 8. The housing 1 is provided with a snap-fit ​​strip 18 that matches the snap-fit ​​groove 550. At least part of the snap-fit ​​strip 18 snaps into the snap-fit ​​groove 550, thereby limiting the antenna assembly 500 by the housing 1, so that the position of the antenna assembly 500 relative to the housing 1 is fixed.

[0114] In some optional embodiments, as shown in FIG5, the hearing aid further includes a connector 920 for connecting cables, etc. In this embodiment, the connector 920 is electrically connected to the mainboard body 410.

[0115] The hearing aid provided in this embodiment has a relatively simple structure, which not only meets the requirements of miniaturization and lightweighting, but also meets the requirements of waterproofing. The structure of the connection between the main board and the antenna assembly is ingenious.

[0116] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A housing assembly, characterized in that, include: The outer shell (1) is provided with a key through hole (16); the key mechanism (2) includes a key assembly (21) and a waterproof structure (22), the key assembly (21) is movably inserted through the key through hole (16), and the part of the key assembly (21) located inside the outer shell (1) can trigger the control switch (930) inside the outer shell (1); the waterproof structure (22) is sleeved on the key assembly (21), and the circumferential edge of the waterproof structure (22) is attached to the outer shell (1); when the key assembly (21) moves relative to the outer shell (1), the waterproof structure (22) undergoes elastic deformation.

2. The housing assembly according to claim 1, characterized in that, The button assembly (21) includes a button (211) and a button cap (212). At least a portion of the button (211) is located inside the housing (1) and can trigger the control switch (930). At least a portion of the button cap (212) is slidably disposed in the button through hole (16) and connected to the button (211). The waterproof structure (22) is sleeved on the button (211) and located inside the housing (1), and the circumferential edge of the waterproof structure (22) is attached to the inner wall of the housing (1).

3. The housing assembly according to claim 2, characterized in that, The button (211) includes a button body (2111) and a button protrusion (2112) connected to one side of the button body (2111). The button protrusion (2112) is connected to the button cap (212). The waterproof structure (22) is sleeved on the button protrusion (2112) and located between the button body (2111) and the button cap (212).

4. The housing assembly according to claim 2, characterized in that, The inner wall of the outer shell (1) is provided with a shallow groove (17), and at least a portion of the waterproof structure (22) is located in the shallow groove (17).

5. The housing assembly according to claim 2, characterized in that, The housing assembly further includes an inner support member (3) fixedly disposed within the outer shell (1). The inner support member (3) is used to house the control switch (930), and the inner support member (3) is provided with a pressing protrusion (31). The pressing protrusion (31) abuts against the circumferential edge of the waterproof structure (22) and is used to press the waterproof structure (22) against the outer shell (1).

6. The housing assembly according to claim 5, characterized in that, The pressure protrusion (31) is annular; and / or, the circumferential edge of the waterproof structure (22) is connected to the outer shell (1) by a connecting adhesive (23).

7. The housing assembly according to any one of claims 1-6, characterized in that, The outer shell (1) includes a first shell (11) and a second shell (12) that are fastened together. The first shell (11) is provided with a stepped structure (111), and the second shell (12) is provided with a boss (121) that cooperates with the stepped structure (111). A sealing colloid (14) is provided between the stepped surface (1111) of the stepped structure (111) and the boss (121). The surface of the boss (121) facing the first shell (11) is provided with a supporting protrusion (1211).

8. The housing assembly according to claim 7, characterized in that, The inner wall of the first housing (11) is provided with a first welded body (112), and the inner wall of the second housing (12) is provided with a second welded body (122). The first welded body (112) and the second welded body (122) are welded by ultrasonic welding.

9. The housing assembly according to claim 8, characterized in that, The first welded body (112) extends into the second housing (12); and / or, multiple first welded bodies (112) and second welded bodies (122) are provided in a one-to-one correspondence.

10. A hearing aid, characterized in that, The hearing aid includes the housing assembly as described in any one of claims 1-9; the hearing aid further includes a control switch (930) disposed within the housing (1), and the control switch (930) can be triggered by movement of the button assembly (21) relative to the housing (1).