Dome for personal audio device and personal audio device

Abstract

The present disclosure provides a dome for a personal audio device. The dome includes a central portion defining a channel extending in a longitudinal direction with a first sound opening disposed at a first end and a circumferential member disposed circumferentially around the central portion. The circumferential member is attached to the central portion at a first end and includes a second sound opening at a front end. The central portion is formed of a first material and the circumferential member is formed of a second material that is more flexible than the first material. A first length of the circumferential member in the longitudinal direction is in a range of 25% to less than 100% of a second length of the central portion in the longitudinal direction.

Description

Technical Field

[0001] The present invention relates to a dome for a personal audio device; and a personal audio device including a dome. The dome is used to be positioned in or partially positioned in an ear canal of a user. The dome includes a central portion and a peripheral member arranged circumferentially around the central portion. Background Art

[0002] Debris such as earwax and moisture can accumulate on personal audio devices and cause problems such as blocking sound openings and corroding components. The components and functions of personal audio devices, especially those of the speakers (receivers), need to be protected from such debris.

[0003] Traditionally, barriers have been used to protect personal audio devices from debris entering through the sound ports. One problem with these barriers is that they eventually become dirty, which can affect the propagation of sound waves. Existing solutions require cleaning or replacing the barriers, a process that is often too complicated due to size or tool requirements. Improper repairs can make the situation worse, carrying contaminants to locations where they can damage other parts of the personal audio device, which can be more difficult to repair. Summary of the invention

[0004] It is an object of embodiments of the present invention to provide an improved dome for a personal audio device. Another object is to provide a hearing device comprising the improved dome.

[0005] The invention provides a dome for a personal audio device according to claim 1 and a hearing device according to claim 18 .

[0006] Thus, according to a first aspect, the invention relates to a dome comprising:

[0007] a central portion defining a passage extending in a longitudinal direction between a first end and an opposite second end, wherein a first sound opening is arranged at the first end, the first sound opening being configured for the passage of sound,

[0008] a circumferential member arranged circumferentially around the central portion, the circumferential member being attached to the central portion at the first end and extending in a longitudinal direction between a front end and a rear end, wherein a second sound opening is arranged at the front end, the second sound opening being configured for passage of sound,

[0009] a cavity formed in a longitudinal direction along at least a portion of an outer surface of the central portion and at least a portion of an inner surface of the peripheral member,

[0010] a first sound path disposed in the passageway, the first sound path configured to conduct sound from the personal audio device to an ear canal of a user via the first sound opening and the second sound opening,

[0011] wherein the central portion is formed of a first material and the peripheral members are formed of a second material, the second material being more flexible than the first material, and

[0012] wherein a first length of the circumferential member in the longitudinal direction from the front end to the rear end is in a range from 25% to less than 100% of a second length of the central portion in the longitudinal direction from the first end to the second end.

[0013] In the present invention, the term "personal audio device" covers a transducer, such as a receiver (speaker) or a microphone, or an element comprising both a receiver and a microphone, which may form part of a hearing device, such as a hearing aid, typically a receiver in-ear hearing aid. However, a personal audio device may also be used for hearable devices, such as consumer accessories, etc.

[0014] Sound may be emitted from or transmitted to the personal audio device (i.e., a receiver / microphone or a combination thereof). Thus, the personal audio device may be or consist essentially of a receiver to produce sound that may be derived from the first sound opening. Alternatively or additionally, the personal audio device may also be or consist essentially of a microphone that may receive sound directed into the first sound opening.

[0015] The central portion defines a channel extending in a longitudinal direction between a first end and an opposite second end, wherein a first sound opening is arranged at the first end. The first sound opening is configured for the passage of sound. The central portion can be configured to receive at least a portion of a personal audio device (usually a receiver), whereby the first sound opening can be configured for the passage of sound from the personal audio device. Therefore, a first sound path is set in the channel, wherein the first sound path is configured for sound to be transmitted from the personal audio device to the ear canal of the user via the first sound opening.

[0016] Between the first end and the second end, the central portion may be generally tubular, wherein the cross-sectional shape of the central portion may be generally circular. However, it should be understood that the cross-sectional shape in alternative embodiments may be different, such as oval, square, triangular or other shapes. In a preferred embodiment, sharp angles may be avoided to reduce the risk of injury to the user's ear canal. The size (e.g., diameter) of the cross-sectional shape may vary along the longitudinal direction. However, in one embodiment, the size of the cross-sectional shape may be uniform.

[0017] The circumferential members are arranged circumferentially around the central part, wherein the circumferential members are attached to the central part at a first end. For example, the circumferential members can be attached along a line circumferentially around the outer surface of the central part. Alternatively or additionally, the circumferential members can also be attached to one or more points of the outer surface of the central part. In one embodiment, the circumferential members can be releasably attached to the central part.

[0018] Additionally, the peripheral members may also be attached to the central portion at the rear end and / or at one or more locations between the front and rear ends.

[0019] The circumferential member extends in the longitudinal direction between the front end and the rear end, wherein a second sound opening is arranged at the front end. The second sound opening is configured for the passage of sound. The first and second sound openings can be arranged transversely to the longitudinal direction, can be aligned, or can also be arranged so that they at least partially overlap, whereby both the first sound opening and the second sound opening can be configured for the passage of sound from the personal audio device. Therefore, the first sound path arranged in the channel is configured to transmit sound from the personal audio device (receiver) to the ear canal of the user via the first and second sound openings.

[0020] In the present disclosure, the term "longitudinal direction" should be understood as the direction in which the central portion is longest. To facilitate insertion of the dome into the ear canal, the longitudinal direction may be substantially the same as the direction in which the dome / personal audio device is inserted into the ear canal.

[0021] The front and rear ends of the circumferential member define opposite ends of the circumferential member, wherein the terms "front" and "rear" may refer to the insertion direction of the dome / personal audio device relative to the user's ear canal. To facilitate the transmission of sound from the personal audio device to the user's ear canal, the first end may be arranged closer to the ear canal than the second end, and thus the first end of the central portion may be arranged in the front region of the circumferential member.

[0022] A cavity is formed along at least a portion of the outer surface of the central portion and at least a portion of the inner surface of the peripheral member in the longitudinal direction. Due to the presence of the cavity, the peripheral member can move relative to the central portion, for example during insertion of the dome and / or removal of the dome from the user's ear canal. Since the peripheral member is attached to the central portion at the first end, the movement can be mainly in a radial direction transverse to the longitudinal direction.

[0023] Attachment of the peripheral member to the central portion at the first end may further allow for greater movement of the peripheral member relative to the central portion at the second end than at a location closer to the first end.

[0024] The length of the circumferential member from the front end to the rear end in the longitudinal direction is represented as a first length, and the length of the central portion from the first end to the second end in the longitudinal direction is represented as a second length. To facilitate insertion of a dome including the circumferential member and the central portion, the first length is in the range of 25% to less than 100% of the second length.

[0025] The central portion is formed from a first material and the peripheral member is formed from a second material, the second material being more flexible than the first material. By providing the peripheral member to be made from a material that is more flexible than the first material, it can be achieved that the outer shape of the peripheral member can be changed, for example, during the process of inserting the dome into and / or removing the dome from the ear canal of a user to facilitate the insertion / removal of the dome and / or to facilitate the adaptation of the outer shape to the inner shape of the ear canal.

[0026] Flexibility is related to the amount of force required to deform a material. It is related to the flexural modulus, which refers to the tendency of a material to resist bending. Materials that deform more easily are said to be more flexible or have a lower flexural modulus. Flexibility can be measured using a Shore A durometer, where a higher value indicates lower flexibility than a lower value. Deformation can be plastic or elastic. The dome of the present invention should not deform plastically during normal use. Therefore, both the first and second materials should remain within the elastic deformation range. The first material has a Shore A hardness of at least 85, while the second material has a lower Shore A hardness, such as in the range of 10-80.

[0027] The center portion is made of a first material that is less flexible than a second material. By further providing the center portion made of the first material having a Shore A hardness of at least 85, it can be achieved that when the dome including the center portion is inserted into the ear canal and / or removed, the shape of the center portion does not substantially change, thereby facilitating retention of the personal audio device (receiver) inserted into the channel. In addition, the first material of the center portion has a low flexural modulus, which can provide protection for the personal audio device when it is inserted into the channel.

[0028] Another benefit of having a central portion of the first material that is less flexible than the second material may be that the sound outlet of the personal audio device may be omitted since the peripheral member may be attached directly to the central portion. In prior art devices, the dome element is typically attached to a sound outlet extending from the personal audio device. Therefore, the product of the present disclosure may be shorter than prior art products. Therefore, in a preferred embodiment, the present invention provides a personal audio device in the form of a transducer, such as a speaker (commonly referred to as a receiver), which is located in a speaker housing and has a sound opening in the speaker housing and a dome according to the present invention, wherein the sound opening of the speaker housing is acoustically connected to a first sound opening in the central portion of the dome; and wherein the longitudinal distance between the front end of the peripheral member and the sound opening in the speaker housing is typically less than 4 mm.

[0029] The first material and / or the second material may be a material containing more than one component. The first material and the second material do not limit the material to a pure material or a material combination without additives. The terms first material and second material indicate that the central portion is made of another material different from the peripheral member.

[0030] It should be further understood that the first and second materials may contain the same components but in different proportions. For example, the first material may be a plastic material containing an additive to reduce its flexibility, and the second material may be the same plastic material, e.g. without the additive, or with a smaller amount of additive, or with a different additive to make the second material more flexible than the first material.

[0031] For example, the central part can be made of metal, ceramic or plastic, such as different types of metal and / or different types of plastic or harder silicone. Preferably, the central part is made of the following materials: polyamide, such as polycaprolactam (nylon 6), polylaurolactam (nylon 12) or nylon 66; polyethylene terephthalate, such as polyethylene terephthalate (PET) or polybutylene terephthalate (PBT), more preferably polybutylene terephthalate (PBT). The material of the central part can optionally be a glass fiber reinforced material, such as a glass fiber content of up to 30%. For example, the circumferential members can be made of a plastic material, such as silicone or TPE (thermoplastic elastomer), preferably a silicone rubber, such as cross-linked or cured liquid silicone rubber (LSR).

[0032] The central portion includes an engagement structure configured to releasably lock the personal audio device to the dome when the personal audio device is inserted into the channel. By locking the personal audio device (such as a receiver) to the central portion of the dome, the dome and the personal audio device can be kept together during insertion, removal and / or use.

[0033] In one embodiment, the engagement structure can be formed by a portion of the inner surface of the center portion, which can substantially mate with a portion of the outer surface of the personal audio device. By providing a center portion with an inner diameter slightly smaller than the outer diameter of the personal audio device, the personal audio device can, for example, be pressed into the channel and can be held in place by friction forces on the outer surface of the personal audio device, thereby providing a friction fit or a press fit.

[0034] Alternatively or additionally, the engagement structure may also be a structural feature disposed in an area of ​​the center portion for engaging with the personal audio device to lock the personal audio device to the dome, thereby providing a snap-fit ​​lock. The engagement means may be integrally formed with the center portion or may be a separate element subsequently attached to the center portion.

[0035] The engagement structure for releasably locking can provide, for example, the ability to replace the dome and / or separate the dome and personal audio device, for example, for maintenance, cleaning, battery replacement, etc.

[0036] The central part is configured to accommodate at least 50% of the personal audio device, i.e. the transducer, such as a receiver (speaker) or a microphone, in the channel, so that the central part can protect most of the personal audio device. Accommodating at least 50% should be understood as at least 50% of the transducer / receiver / microphone in the longitudinal direction can be accommodated in the channel. In one embodiment, the transducer / receiver / microphone can be fully inserted into the channel, so the central part can have a large enough size to accommodate it, where the size refers to the length of the central part / channel in the longitudinal direction. In addition, it will be more convenient to insert the personal audio device into the channel because the channel can serve as a guide for the personal audio device during the insertion process. The length of the central part, i.e. the distance between the first end and the opposite second end in the longitudinal direction, can be in the range of 10-18 mm. The personal audio device (transducer, receiver, microphone) can have a certain length, i.e. the dimension in the longitudinal direction, in the range of 8-15 mm.

[0037] To facilitate locking the personal audio device to the dome, an engagement structure may be arranged in the channel. The engagement structure may have a shape that matches the shape of a portion of the outer surface of the personal audio device for mechanically locking the personal audio device in the channel. The mechanical locking may be based on direct contact between at least a portion of the outer surface of the personal audio device and the engagement structure, so that the personal audio device may be locked to the dome by mechanical force (including friction). In one embodiment, when the personal audio device is locked to the dome by friction, the dimension of the channel transverse to the longitudinal direction may preferably be in the range of 101%-120% of the dimension of the personal audio device transverse to the longitudinal direction. The inner dimension of the central portion transverse to the longitudinal direction may preferably be in the range of 3-7 mm. The outer dimension of the personal audio device (transducer, receiver, microphone) transverse to the longitudinal direction is preferably in the range of 2.5-6 mm, or in an embodiment where the personal audio device is not locked to the dome by friction, the outer dimension may be even smaller.

[0038] For example, the engagement structure may form one or more protrusions on the inner surface of the central portion, i.e., inside the channel. In one embodiment, the protrusions may extend circumferentially along the inner surface, thereby forming an uninterrupted protrusion, at the location of the protrusion, the protrusion reduces the dimension of the channel transverse to the longitudinal direction. In another embodiment, the dimension of the channel transverse to the longitudinal direction may be reduced by arranging two or more protrusions extending circumferentially along a portion of the inner surface in a line. In addition, the protrusions may also be arranged at different positions along the inner surface of the central portion to reduce the dimension of the channel transverse to the longitudinal direction at more than one position along the longitudinal direction.

[0039] One or more indentations may be arranged on the outer surface of the personal audio device, wherein the shape of the one or more indentations may match the shape of the protrusions on the inner surface of the center portion. It should be understood that in alternative embodiments, one or more protrusions may be arranged on the outer surface of the personal audio device, and one or more indentations may be arranged on the inner surface of the center portion. Another option is that one or more protrusions and one or more indentations may be arranged on both the inner surface of the center portion and the outer surface of the personal audio device. The engagement structure may be arranged closer to the second end than the first end.

[0040] For example, the support element can be arranged to support the circumferential member during insertion of the dome into the user's ear canal and / or removal of the dome from the user's ear canal and / or during use of the dome and the personal audio device. The support element can be arranged in the cavity circumferentially around the central portion to support the circumferential member along a portion of the inner surface of the circumferential member between the front end and the rear end. The support element can be attached to at least one of the circumferential member and the central portion.

[0041] When arranged between the central portion and the peripheral member, the support element can exert pressure on the peripheral member to ensure engagement with the ear canal, for example to provide a seal along the outer surface of the peripheral member and the ear canal during use. In addition, the support element can also prevent or at least greatly reduce the risk of a portion of the peripheral member turning over, i.e., prevent or at least greatly reduce the risk of the portion of the peripheral member at the rear end turning over from the inside out. The support element can be made of a flexible material, such as silicone or TPE (thermoplastic elastomer), so as to allow the peripheral member to adapt to the shape of the ear canal and / or allow the peripheral member to be squeezed during insertion and / or removal of the dome.

[0042] Additionally or alternatively, the dome can also include a barrier member that can limit cerumen from entering the cavity. The barrier member can be arranged in the cavity circumferentially around the central part along the portion between the front end and the rear end of the inner surface of the circumferential member. Compared with the front end, the barrier member can be preferably arranged closer to the rear end to reduce cerumen from entering a deeper cavity, such as being arranged in the region adjacent to the rear end. The barrier member can extend from the central part to the inner surface of the circumferential member to provide a barrier that limits entry into the cavity. The barrier member can be attached to at least one of the circumferential member and the central part. The barrier can allow sound to pass. For example, the barrier member can be made of foam or plastic material, such as silicone or TPE. For example, in the process of inserting the dome including the central part and the circumferential member into the ear canal and / or removing the dome from the ear canal, when the circumferential member is deformed due to the pressure applied on the outer surface of the circumferential member, the material that allows the barrier member to deform can be selected.

[0043] In one embodiment, the barrier member may have hydrophobic or oleophobic properties. For example, this may be achieved by applying a coating to the barrier member or by using a material having hydrophobic or oleophobic properties to manufacture the barrier member. In addition to the physical barrier, the hydrophobic or oleophobic properties may also provide a chemical barrier to earwax.

[0044] The barrier member may include a plurality of openings / holes to allow sound to pass through the barrier member. In addition, when pressure is applied to the outer surface of the circumferential member, the openings may promote deformation of the barrier member. The barrier member may include a plurality of blocking elements, such as a grid, an element extending transversely to the cavity, a layered structure, a foam, etc., because when the transport channel of earwax is not a straight transport channel, but changes due to the deviation formed by the blocking element, the entry of earwax can be minimized. Therefore, the barrier member can be used as a maze with pockets formed by the obstruction element, which can capture earwax and other incoming materials.

[0045] The barrier member in the form of foam may preferably have a PPI value (pores per inch) in the range of 20-120 PPI, for example a PPI value in the range of 70-110 PPI, whose acoustic properties allow sound to pass through. The acoustic properties can be adjusted by adjusting the thickness of the foam in the longitudinal direction and / or adjusting the density of the foam pores.

[0046] The mesh size of the barrier member in the form of a grid may preferably be in the range of 30 μm to 1000 μm, for example, in the range of 70 μm to 200 μm. In addition, the area open percentage of the barrier member may preferably be in the range of 20% to 70%, for example, in the range of 40%-60%.

[0047] In one embodiment, the dome may include a barrier member arranged in the cavity, wherein the barrier member includes a first barrier and a second barrier, both of which are arranged circumferentially around the central portion and extend from an outer surface of the central portion to an inner surface of the circumferential member transversely to the longitudinal direction, and the first barrier and the second barrier are arranged longitudinally offset from each other in the cavity, wherein the first barrier includes a plurality of first ribs extending outward from the central portion at a first angle, and the second barrier includes a plurality of second ribs extending outward from the central portion at a second angle, and the first angle and the second angle are different from each other.

[0048] The first and second barriers may be arranged closer to the rear end than the front end to limit earwax from entering deeper into the cavity, ie to limit the amount of earwax that may enter the cavity from the rear end of the circumferential member towards the front end of the circumferential member.

[0049] The first and second barriers may be arranged such that they are in contact with each other. For example, the front side of the first barrier may be in contact with the rear side of the second barrier, wherein the first barrier is positioned closer to the rear end of the circumferential member than the second barrier, and wherein the front side and the rear side relate to the insertion direction of the dome in the longitudinal direction. In an alternative embodiment, a certain distance may be provided between the first and second barriers, such as a maximum distance of 1.5 mm.

[0050] The term "extending outward from the central portion" should be understood as meaning that the first end of the rib may be in direct contact with the outer surface of the central portion, or the first end of the rib may be attached to a base element in contact with the central portion. A second base element may be arranged along the inner surface of the circumferential member. A second end opposite to the first end of the rib may be attached to the second base element.

[0051] The first and / or second ribs may be curved. Alternatively, the first and / or second ribs may be straight, S-shaped or other shaped, with a first end attached to the outer surface of the first base element or the central portion and an opposite second end attached to the inner surface of the second base element or the peripheral member.

[0052] In one embodiment, each first rib is identical and each second rib is also identical, wherein the first and second ribs extend outwardly from the central portion at different angles. In one embodiment, the angles may be arranged in a mirror configuration, for example, the first angle is +45 degrees and the second angle is -45 degrees.

[0053] In one embodiment, the first barrier and the second barrier may be substantially identical, wherein the different angles of the first and second ribs may be achieved by, for example, mirroring the second barrier.

[0054] The number of first and second ribs can be changed from one barrier member to another barrier member, thereby changing the size of the opening in the barrier member, wherein the opening is the passage between adjacent ribs. In one embodiment, the number of first and second ribs can be, for example, 16. However, the number of first and second ribs can be in the range of 10-30. The number of ribs can also change the acoustic properties of the barrier member. The number of first and second ribs, the first and second angles, and the relative angle between the first and second angles can be changed to change the trade-off between entry restriction and acoustic properties.

[0055] In one embodiment, the barrier member may form part of the support element, thereby forming an element that may support the peripheral member and may additionally restrict the ingress of earwax.

[0056] In addition to the first sound opening arranged at the first end, at least one sound aperture may be arranged in the central portion at a distance from the first end, thereby providing at least two openings in the central portion, wherein both of the at least two openings may be configured for the passage of sound. The at least one sound aperture may be configured for the passage of sound between the channel and the cavity. The direction of the first sound path, i.e. the passage direction via the first sound opening, may be substantially in the longitudinal direction, while the direction of the second sound path, i.e. the passage direction via the at least one sound aperture, may be transverse to the longitudinal direction.

[0057] In one embodiment, a plurality of sound holes, such as two, three, four or even more sound holes, may be arranged on the central portion at a distance from the first end. Since the plurality of sound holes may be arranged circumferentially along a line at the central portion, for example radially relative to a center line extending centrally in the longitudinal direction in the channel, the distance of each sound hole may be substantially the same. However, it should be understood that the distance from the first end to at least two sound holes may be different.

[0058] A valve may be arranged in the passage adjacent to the personal audio device (receiver). The valve may be arranged to open and close a sound path through the central portion, which sound path may be arranged to allow external sound to pass from the cavity to the central portion. External sound may be defined as sound not generated by the personal audio device in the form of a receiver, such as sound from the surrounding environment.

[0059] At least one sound orifice may at least partially overlap a valve opening in a valve forming part of a personal audio device to allow sound to pass between the passage and the cavity via the valve. The valve may form a second sound path configured for sound to enter and exit the ear canal, as sound (e.g., external sound) may be directed through the cavity to the valve, through at least one valve opening and at least one sound orifice to the personal audio device, and further from the personal audio device to the ear canal of the user. Thus, a second sound path may be formed from the cavity through the valve to the first sound opening, and then to the second sound opening to direct sound (e.g., external sound) from the cavity to the ear canal of the user.

[0060] The valve may include an actuation structure to allow the second sound path to be opened and closed, thereby excluding / allowing external sound to enter the user's ear canal depending on whether the valve is in a closed or open state.

[0061] In one embodiment, the valve may be positioned closer to the first end than the receiver. To facilitate the sound generated by the receiver to enter the ear canal of the user via the first sound opening, the sound channel may extend through the valve in a longitudinal direction. Thus, the first sound path may be partially formed by the sound channel.

[0062] A protective element may be arranged at the first sound opening to limit the entry of cerumen into the passage by providing a barrier that divides the first sound opening into smaller sound openings. The protective element may comprise a mesh, for example made of metal or plastic material, such as polyamide (PA / nylon) or polyethylene terephthalate (PET) or other polymers. The mesh may be a woven mesh.

[0063] An additional protective element may be arranged near the protective element, for example, at a position that is kept at a certain distance from the protective element in the longitudinal direction, to enhance the protection against the entry of cerumen. In one embodiment, the protective element and the additional protective element may contact each other. In addition, the additional protective element may also be arranged near the protective element, for example, at a distance from the protective element in the range of 0.1-1.0 mm.

[0064] Additional protection elements may be attached to the central portion or to the peripheral members.

[0065] Additionally or alternatively, an additional protective element may be arranged at the second sound opening to limit the entry of cerumen into the cavity. Thus, the dome may include a protective element and / or an additional protective element. The additional protective element may include a mesh, such as a mesh made of plastic or metal, or a mesh made of a braid or a braided plastic element. In an alternative embodiment, the additional protective element may include a foam, such as a foam made of polyurethane.

[0066] In one embodiment, the protective element and / or the additional protective element may have hydrophobic or oleophobic properties. For example, a coating may be applied to the protective element and / or the additional protective element, or the protective element and / or the additional protective element may be made of a material having hydrophobic or oleophobic properties. In addition to the physical barrier, the hydrophobic or oleophobic properties may also provide a chemical barrier to earwax.

[0067] In one embodiment, the protective element may include a first mesh, and the additional protective element may include a second mesh, wherein the mesh openings and / or pore sizes of the second mesh may be larger than the mesh openings and / or pore sizes of the first mesh. Since the second mesh is closer to the ear canal than the first mesh, the second mesh may partially protect the first mesh.

[0068] The permeability of the additional protection element can be greater than the permeability of the protection element to increase the protection of the vicinity of the passage. In the context of the present invention, the term "permeability" should be understood as the ability of the protection element to allow substances such as earwax to pass through.

[0069] For example, the mesh size of the additional protective element in the form of a grid may preferably be in the range of 30 μm to 1000 μm, for example in the range of 70 μm to 200 μm. In addition, the area opening percentage of the second grid may preferably be in the range of 20% to 70%, for example in the range of 40%-60%. The protective element in the form of a grid may have a larger grid opening and / or opening percentage accordingly.

[0070] The PPI value (pores per inch) of the additional protective element in the form of foam may preferably be in the range of 20-120 PPI, for example in the range of 70-110 PPI. The acoustic properties of the foam will preferably be comparable to those of the above-mentioned second protective element in the form of a mesh, which can be achieved by selecting the thickness of the foam in the longitudinal direction and the density of the foam pores.

[0071] The protective element may be formed integrally with the central portion. For example, this may be achieved by molding the central portion and the protective element as one component.

[0072] Alternatively or additionally, the additional protection element may also be formed integrally with the circumferential member. For example, this may be achieved by molding the circumferential member and the additional protection element into one component.

[0073] The peripheral member may include a collar member, which may be formed by a wall portion extending from an inner surface of the peripheral member, may extend into the cavity, and may terminate at a free end. The collar member, i.e., the wall portion extending outwardly, may have a shape that matches the outer shape of a portion of the central portion so as to attach the peripheral member to the central portion. The collar member may extend parallel to the longitudinal direction to form a space into which the first end of the central portion may be inserted and fixed.

[0074] In order to prevent the circumferential member from buckling, at least one reinforcing rib can be arranged along the inner surface of the circumferential member to increase the rigidity of the circumferential member. In one embodiment, at least one reinforcing rib can be arranged circumferentially along the inner surface of the circumferential member, for example in the rear end region. The reinforcing rib can extend from the inner surface toward the central portion and can terminate at a free end. In another embodiment, at least one reinforcing rib can be arranged along the inner surface, extending substantially longitudinally downward toward the front end from the area of ​​the rear end. The reinforcing rib can be formed integrally with the circumferential member, or it can be a separate element subsequently attached to the circumferential member. The reinforcing rib can advantageously be made of a flexible material, such as silicone or a thermoplastic elastomer, so as to allow the circumferential member to adapt to the shape of the ear canal and / or facilitate the insertion and / or removal of the dome from the ear canal.

[0075] In order to strengthen the protection of the central part, at least one connecting element can be arranged at the rear end of the peripheral member. The connecting element can connect the peripheral member to the central part. For example, the connecting element can be a rib that can be attached to the outer surface of the central part. Alternatively or additionally, the rear end of the peripheral member can also be attached to the outer surface of the central part by an adhesive, or attached to the outer surface of the central part by friction.

[0076] The peripheral member can be attached to the central part, for example, by bonding or molding. The peripheral member and the central part can be two independent elements, which can then be attached to each other by an adhesive. In an alternative embodiment, the central part can be made as a separate element. In a subsequent step, the peripheral member can be molded. The molding step can include a synchronous attachment step, whereby the peripheral member can be attached to the central part in the molding and attachment steps.

[0077] According to a second aspect, the present invention provides a dome for a personal audio device, the dome comprising:

[0078] a central portion defining a passage extending in a longitudinal direction between a first end and an opposite second end, wherein a first sound opening is arranged at the first end, the first sound opening being configured for the passage of sound,

[0079] a circumferential member arranged circumferentially around the central portion, the circumferential member being attached to the central portion at the first end and extending in a longitudinal direction between a front end and a rear end, wherein a second sound opening is arranged at the front end, the second sound opening being configured for passage of sound,

[0080] a cavity formed in a longitudinal direction along at least a portion of an outer surface of the central portion and at least a portion of an inner surface of the peripheral member,

[0081] a first sound path disposed in the passageway, the first sound path configured to conduct sound from the personal audio device to an ear canal of a user via the first sound opening and the second sound opening,

[0082] wherein the central portion is formed of a first material and the peripheral members are formed of a second material, the second material being more flexible than the first material, and

[0083] The center portion includes an engagement structure configured to releasably lock the personal audio device to the dome when the personal audio device is inserted into the channel, and the center portion is configured to accommodate at least 50% of the personal audio device in the channel.

[0084] It should be understood that a skilled person will readily recognize that any feature described in conjunction with the first aspect of the present invention may also be combined with the second aspect of the present invention, and vice versa. Therefore, the above discussion on the first aspect is also applicable to the second aspect.

[0085] According to a third aspect, the invention provides a hearing device comprising a dome according to the first or second aspect and a personal audio device, wherein the personal audio device is a receiver.

[0086] It should be understood that the skilled person will readily recognize that any feature described in conjunction with the first and second aspects of the present invention may also be combined with the third aspect of the present invention, and vice versa. Therefore, the above discussion on the first and second aspects also applies to the third aspect.

[0087] According to a fourth aspect, the present invention provides a dome for a personal audio device, the dome comprising:

[0088] a central portion defining a passage extending in a longitudinal direction between a first end and an opposite second end, wherein a first sound opening is arranged at the first end, the first sound opening being configured for the passage of sound,

[0089] a circumferential member arranged circumferentially around the central portion, the circumferential member being attached to the central portion at the first end and extending in a longitudinal direction between a front end and a rear end, wherein a second sound opening is arranged at the front end, the second sound opening being configured for passage of sound,

[0090] a cavity formed in a longitudinal direction along at least a portion of an outer surface of the central portion and at least a portion of an inner surface of the peripheral member,

[0091] a first sound path disposed in the passageway, the first sound path configured to conduct sound from the personal audio device to an ear canal of a user via the first sound opening and the second sound opening,

[0092] wherein the central portion is formed of a first material and the peripheral members are formed of a second material, the second material being more flexible than the first material, and

[0093] The barrier component is arranged in the cavity, the barrier component includes a first barrier and a second barrier, the first barrier and the second barrier are both arranged circumferentially around the central part and extend from the outer surface of the central part to the inner surface of the circumferential component transversely to the longitudinal direction, the first barrier and the second barrier are arranged longitudinally offset from each other in the cavity, the first barrier includes a plurality of first ribs extending outward from the central part at a first angle, the second barrier includes a plurality of second ribs extending outward from the central part at a second angle, and the first angle and the second angle are different from each other.

[0094] The first and second barriers may be arranged closer to the rear end than the front end to limit the entry of cerumen deeper into the cavity. The first and second barriers may be arranged to contact each other. The first and / or second ribs may be curvilinear in shape. The first barrier and the second barrier may be substantially identical, wherein the position of the second barrier is a mirror image relative to the first barrier.

[0095] It should be understood that the skilled person will readily recognize that any feature described in conjunction with the first, second and third aspects of the present invention may also be combined with the fourth aspect of the present invention, and vice versa. Therefore, the above discussion on the first, second and third aspects also applies to the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0096] Embodiments of the present disclosure will now be further described with reference to the accompanying drawings, in which:

[0097] Figure 1A and 1B shows a cross section of a dome according to the present disclosure;

[0098] Figure 2 Various views of the dome and personal audio device are shown;

[0099] Figure 3A and 3B showing a cross section of a dome and a personal audio device;

[0100] Figure 3C A prior art dome is shown;

[0101] Figure 4 Various views of the dome and personal audio device are shown;

[0102] Figure 5A and 5B showing a cross section of a dome and a personal audio device;

[0103] Figure 6 showing a cross section of a dome and a personal audio device;

[0104] Figures 7A-7D A cross section of the dome is shown;

[0105] Figure 8 showing different views of a dome and a personal audio device, the dome including a barrier member;

[0106] Fig. 9 showing different views of a dome and a personal audio device, the dome including a support element;

[0107] Fig.10 showing different views of a dome and a personal audio device, the dome including a barrier member;

[0108] Fig.11 showing different views of a dome and a personal audio device, the dome including a barrier member;

[0109] Fig.12 showing different views of a dome and a personal audio device, the dome including a barrier member;

[0110] Fig.13 showing different views of a dome and a personal audio device, the dome including a support element;

[0111] Fig.14 showing different views of a dome and a personal audio device, the dome including a support element;

[0112] Fig.15 showing different views of a dome and a personal audio device, the dome including a barrier member;

[0113] Fig.16 Various views of the dome and personal audio device are shown;

[0114] Fig.17 showing different views of a dome and a personal audio device, the dome including a support element;

[0115] Fig.18 showing different views of a dome and a personal audio device, the dome including a barrier member;

[0116] Fig.19 showing different views of a dome and a personal audio device, the dome including a barrier member;

[0117] Figures 20A-20D showing different views of a dome and a personal audio device, the dome including a barrier member;

[0118] Figures 21A-21C Various embodiments of domes incorporating one or more reinforcing ribs are shown;

[0119] Fig. 22 Various views of the dome and personal audio device are shown;

[0120] Figure 23 shows a cross section of the dome;

[0121] Figures 24A-24F showing different views of a dome and a personal audio device; and

[0122] Figures 25A-25G Different views of the dome and personal audio device are shown. DETAILED DESCRIPTION

[0123] It should be understood that the detailed description and specific examples, while indicating embodiments of the present disclosure, are given by way of illustration only, since various changes and modifications within the scope of the present disclosure will become apparent to those skilled in the art from the detailed description. Throughout the description of the drawings, a personal audio device is a transducer, preferably a receiver (also referred to as a speaker).

[0124] Figure 1A and 1B A cross section of a dome 1 is shown. The dome 1 comprises a central portion 2 and a peripheral member 3. The central portion 2 defines a channel 4 extending in a longitudinal direction (indicated by arrow A) between a first end 5 and an opposite second end 6. A first sound opening 7 is arranged at the first end 5, wherein the first sound opening 7 is configured for the passage of sound.

[0125] The circumferential member 3 is arranged circumferentially around the central part 2, to which it is attached at a first end 5. The circumferential member 3 extends in the longitudinal direction between a front end 8 and a rear end 9. A second sound opening 10 configured for the passage of sound is arranged at the front end 8.

[0126] A cavity 11 is formed in the longitudinal direction along at least a portion of the outer surface 12 of the central portion 2 and at least a portion of the inner surface 13 of the circumferential member 3. The cavity 11 extends around a portion of the central portion 2 in the circumferential direction.

[0127] The central portion 2 defines a channel 4. A first sound path 14 is arranged in the channel 4, wherein the first sound path 14 is configured to transmit sound from a personal audio device 15 (see FIG. 1 ) which may be at least partially arranged in the channel 4. Figure 2 ) is transmitted to the ear canal of the user (not shown) via the first and second sound openings 7, 10. In the illustrated embodiment, the first and second sound openings 7, 10 are aligned, thereby facilitating the transmission of sound from the channel 4 via the first and second sound openings 7, 10 to the ear canal of the user.

[0128] The central portion 2 is formed of a first material and the peripheral member 3 is formed of a second material, wherein the second material is more flexible than the first material to allow the peripheral member 3 to deform, for example during insertion and / or removal. The central portion 2 may form a protective cover for protecting a personal audio device in the form of a transducer (receiver and / or microphone) at least partially inserted into the passage 4. Due to the flexibility of the cavity 11 and the second material, at least a portion of the peripheral member 3 may move relative to the central portion 2, which movement may facilitate insertion and / or removal of the dome 3 from the ear canal.

[0129] The center portion 2 includes an engagement structure 16 configured to releasably lock the personal audio device 15 to the dome 1 when the personal audio device 15 is inserted into the channel 4. The center portion 2 is configured to accommodate at least 50% of the personal audio device 15 in the longitudinal direction within the channel 3. In the illustrated embodiment, the engagement structure 16 includes a protrusion 17 located on the inner surface 18 of the center portion 2. The protrusion 17 extends circumferentially along the inner surface 18 to form an uninterrupted protrusion that reduces the dimension of the channel 2 transverse to the longitudinal direction at the location of the protrusion 17. An indentation 19 is arranged on the outer surface 20 of the personal audio device 15 (see Figure 2 ). The shape of the indentation 19 matches the shape of the protrusion 17 on the inner surface 18 of the central part 2.

[0130] A protective element 21 is arranged at the first sound opening 7 to limit the entry of earwax into the channel 4. In the illustrated embodiment, the protective element 21 comprises a mesh 21. An additional protective element 22 (e.g., see FIG. 2 ) may also be additionally arranged at the second sound opening 10. Figure 5A and Fig. 7A ) to limit earwax from entering the cavity 11. Figure 1A and 1B The embodiment shown does not include additional protection elements.

[0131] The peripheral member 3 includes a collar member 23 extending into the cavity 11 and terminating at a free end 24. The shape of the collar member 23 matches a portion of the outer surface 12 of the central part 2 for attaching the peripheral member 3 to the central part 2. The collar member 3 extends substantially parallel to the longitudinal direction to form a space into which the first end 5 of the central part 2 is inserted and fixed. The central part 2 can be held in place by friction acting between the collar member 23 and the central part 2, or can alternatively or additionally be attached with an adhesive.

[0132] The subsequent figures show different embodiments of the dome 1. In the following description of the different embodiments, the reference numerals used above refer to the same features. Each embodiment of the dome 1 comprises a central part 2 and a peripheral member 3, wherein the central part 2 defines a passage 4 extending in a longitudinal direction between a first end 5 and an opposite second end 6. A first sound opening 7 for the passage of sound is arranged at the first end 5.

[0133] The circumferential member 3 is arranged circumferentially around the central part 2, to which it is attached at a first end 6. The circumferential member 3 extends in the longitudinal direction between a front end 8 and a rear end 9. A second sound opening 10 configured for the passage of sound is arranged at the front end 8.

[0134] A cavity 11 is formed along at least a portion of an outer surface 12 of the central portion 4 and at least a portion of an inner surface 13 of the peripheral member 3 .

[0135] A first sound path 14 is arranged in the channel 4 , wherein the first sound path 14 is configured to transfer sound from a personal audio device 15 in the form of a transducer (receiver and / or microphone) via the first and second sound openings 7 , 10 .

[0136] The central portion 2 includes an engagement structure 16 configured to releasably lock the personal audio device 15 to the dome 1 when the personal audio device 15 is inserted into the passage 4 .

[0137] The length of the circumferential member 3 from the front end 8 to the rear end 9 in the longitudinal direction is indicated as a first length, and the length of the central portion 2 from the first end 5 to the second end 6 in the longitudinal direction is indicated as a second length. To facilitate insertion of the dome 1 including the circumferential member 3 and the central portion 2, the first length is in the range of 25% to less than 100% of the second length.

[0138] Figure 2 Different cross-sectional views of the dome 1 and a personal audio device 15 in the form of a receiver are shown. Figure 2 The left side portion of the personal audio device 15 is inserted into the Figure 2 In the channel 4 visible in the right part of Figure 2In FIG. 1 , the personal audio device 15 is not attached to the dome 1 . An engagement structure in the form of a protrusion 17 engages with the indentation 19 to releasably lock the personal audio device 15 to the dome 1 .

[0139] The personal audio device 15 is connected to the duct 25 via a first connector 26 connected to the personal audio device 15. A second connector 27 is arranged at the opposite end of the duct to enable the duct to be attached to, for example, a behind-the-ear component (not shown).

[0140] Figure 3A and 3B In more detail, the Figure 2 1 and a cross section of the dome 1 and the personal audio device 15 shown in FIG. Since the sound output opening (not shown) of the personal audio device 15 can be arranged close to the first sound opening 7, the first audio device 15 can be provided without a sound outlet, so that its overall size (length in the longitudinal direction) can be smaller than that of a conventional device. Figure 3C A prior art audio device 115 is shown including a sound outlet 107 , wherein a prior art dome element 103 is attached to the sound outlet 107 extending from the prior art audio device 115 .

[0141] Figure 4 Different cross-sectional views of the dome 1 and the personal audio device 15 are shown. Figure 4 The left side portion of the personal audio device 15 is inserted into the Figure 4 1. The engaging structure in the form of a protrusion 17 engages with the indentation 19 to releasably lock the personal audio device 15 to the dome 1.

[0142] The personal audio device 15 is connected to the duct 25 via a first connector 26 connected to the personal audio device 15. A second connector 27 is arranged at the opposite end of the duct to enable the duct to be attached to, for example, a behind-the-ear component (not shown).

[0143] A valve 30 is arranged adjacent to the personal audio device 15 in the channel 4. The valve 30 is arranged to open and close a sound path (not shown) from the cavity 11 to the channel 4. The sound path is arranged to allow external sound to pass to the personal audio device in the channel. The valve 30 includes a plurality of valve openings 31. In the illustrated embodiment, the valve openings 31 are arranged transversely to the longitudinal direction.

[0144] A plurality of sound openings 32 are arranged in the central portion 2 (see Figure 4 right part), at a distance from the first end 5, thereby providing an additional opening in the central part 2, the sound opening 32 being configured for sound to pass between the channel 4 and the cavity 11.

[0145] The sound orifice 32 is arranged to at least partially overlap with the valve opening 31 to allow sound to pass between the channel 4 and the cavity 11 via the valve 30. The valve 30 thus forms a second sound path configured for sound to enter and exit the ear canal, because sound (e.g., external sound) can be conducted from the cavity 11 to the valve 30 via the valve opening 31 and the sound orifice 32, and further conducted from the valve 30 to the ear canal of the user via the first and second sound orifices 7, 10.

[0146] Figure 5A and 5B In more detail, the Figure 4 A cross section of the dome 1 and the personal audio device 15 is shown in FIG. 1. Also shown is an additional protective element 22 arranged at the second sound opening 10 to limit the entry of earwax into the cavity 11.

[0147] In the illustrated embodiment, the valve 30 is located closer to the first end than the receiver 40 forming the personal audio device 15. To facilitate the sound generated by the receiver 40 to enter the user's ear canal via the first sound opening 7, the sound channel 42 extends through the valve 30 in the longitudinal direction.

[0148] Figure 6 A cross section of the dome 1 and the personal audio device 15 is shown. Figure 5A and Figure 5B The embodiment shown is similar, except that the additional sound channel 43 is arranged to extend through the first sound opening 7 and the protective element 21. At the protective element 21, since the free end of the sound channel 42 is arranged in the protective collar 44, when sound is transmitted to the additional sound channel 43 via the sound channel 42, the protective collar 44 is arranged to minimize the risk of sound leakage from the personal audio device 15.

[0149] Figures 7A-7D There are shown cross-sectional views of different embodiments of the dome 1. Each embodiment of the dome 1 comprises a central portion 2 and a peripheral member 3, wherein the central portion 2 defines a channel 4 into which a personal audio device (not shown) can be inserted and releasably locked to the dome 1.

[0150] Fig. 7A , 7B and 7D show sound apertures 32 arranged in the central part 2 , which allow sound to pass from the cavity 11 to the channel 4 .

[0151] Fig. 7A The dome 1 in the embodiment comprises a protective element 21 and an additional protective element 22, both of which are in the form of a mesh. Figure 7C The dome 1 in the embodiment comprises only one protective element 21 in the form of a grid, but the grid sizes are different.

[0152] Figure 7BThe dome 1 shown comprises a protective element 21 in the form of a coarse filter, while Fig.7D The dome shown then comprises a protective element 21 in the form of a grid and an additional protective element 22 in the form of a coarse filter, wherein the strip-shaped structure constituting the filter is molded together with the central part.

[0153] Figure 8 Different views of a dome 1 including a valve and a personal audio device 15 in the form of a receiver are shown. The dome 1 includes a barrier member 50 disposed in the cavity 11 closer to the rear end of the circumferential member than to the front end of the circumferential member. The barrier member 50 extends circumferentially around the central portion 2 from the outer surface 12 of the central portion 2 to the inner surface 13 of the circumferential member. The barrier member 50 is configured to restrict earwax from entering the cavity 11.

[0154] In the illustrated embodiment, the barrier member 50 comprises a mesh made of a woven polymer. The mesh 50 is flexible to allow the circumferential member 3 to compress upon insertion to fit the inner surface of the ear canal.

[0155] Fig. 9 Different views of a dome 1 including a valve and a personal audio device 15 in the form of a receiver are shown. The dome 1 includes a support element 60 arranged in the cavity 11 closer to the rear end of the peripheral member than to the front end of the peripheral member. The support element 60 extends circumferentially around the central part 2 from the outer surface 12 of the central part 2 to the inner surface 13 of the peripheral member.

[0156] The support element 60 is arranged to generate pressure on the inner surface of the peripheral member 3 to ensure that the outer surface of the peripheral member 3 engages with the ear canal. In addition, the support element 60 can also prevent a portion of the peripheral member 3, ie the portion at the rear end, from being turned inside.

[0157] In the illustrated embodiment, the support element 60 includes a plurality of U-shaped protrusions 60A made of a soft material (e.g., silicone) to allow the support element 60 to move relative to the central portion 2. In alternative embodiments, the number of U-shaped protrusions 60A may be different. For example, the support element 60 may include two protrusions, three protrusions, four protrusions, or more protrusions, such as 10, 11, 12, or more.

[0158] Fig.10 Different views of a dome 1 comprising a valve 30 and a personal audio device 15 in the form of a receiver are shown. The dome 1 comprises a barrier member 50 arranged in the cavity 11. The barrier member 50 is configured to restrict the entry of earwax into the cavity 11.

[0159] In the illustrated embodiment, the barrier member 50 includes a plurality of rib members 50A, wherein a group of first rib members 50A extends from the outer surface 12 of the central portion 2 toward the peripheral member 3 in the circumferential direction around the central portion 2, and a group of second rib members 50A extends from the inner surface of the peripheral member 3 toward the central portion 2. By alternately arranging the first and second groups of rib members 50A in the longitudinal direction, the opening to the cavity 11 is partially blocked by the barrier member, thereby reducing the risk of earwax entering.

[0160] In the illustrated embodiment, the first and second groups of rib members 50A extend substantially perpendicular to the longitudinal direction. However, it should be understood that at least some of the rib members may be arranged at different angles, i.e., not perpendicular to the longitudinal direction. The number of rib members may also be different.

[0161] Fig.10 The dome 1 shown comprises both a set of first rib members and a set of second rib members. In alternative embodiments, only a set of first rib members or only a set of second rib members may be used.

[0162] The rib member 50A may be made of a flexible material, such as silicone or TPU.

[0163] Fig.11 Different views of a dome 1 including a valve 30 and a personal audio device 15 in the form of a receiver are shown. The dome 1 includes a barrier member 50 disposed in the cavity 11 closer to the rear end of the circumferential member than to the front end of the circumferential member. The barrier member 50 extends circumferentially around the central portion 2 from the outer surface 12 of the central portion 2 to the inner surface 13 of the circumferential member. The barrier member 50 is configured to restrict earwax from entering the cavity 11.

[0164] In the illustrated embodiment, the barrier member 50 includes a disc-shaped element 50 made of a flexible material. The disc-shaped element 50 includes a plurality of small through holes 51. Since the barrier member 50 is flexible, it allows the circumferential member 3 to be compressed when inserted, and the barrier member 50 can also serve as a supporting element, generating pressure on the inner surface of the circumferential member 3 to ensure that the outer surface of the circumferential member 3 engages with the ear canal.

[0165] Detail A( Fig.11 The right side shows an expanded view of the small through hole 51. The through hole 51 allows sound to be transmitted from the outside into the cavity 11.

[0166] Fig.12 Different views of a dome 1 comprising a valve 30 and a personal audio device 15 in the form of a receiver are shown. The dome 1 comprises a barrier member 50 arranged in a cavity 11.

[0167] In the illustrated embodiment, the barrier member 50 comprises a disc-shaped double-layer element 50 made of a flexible material. The barrier member 50 extends circumferentially around the central portion 2 from the inner surface 13 of the circumferential member to the outer surface 12 of the central portion 2, and extends back to the inner surface 13 of the circumferential member. The double-layer disc-shaped element 50 comprises a plurality of small through holes. By providing a double-layer structure, the barrier member 50 can provide stronger protection against earwax from entering the cavity 11.

[0168] Since the barrier member 50 is flexible, it allows the circumferential member 3 to be compressed when inserted. The barrier member 50 can also serve as a supporting element to generate pressure on the inner surface of the circumferential member 3 to ensure that the outer surface of the circumferential member 3 engages the ear canal.

[0169] Fig.13 Different views of a dome 1 comprising a valve 30 and a personal audio device 15 in the form of a receiver are shown. The dome 1 comprises a support element 60 arranged in a cavity 11.

[0170] The support element 60 is arranged to generate pressure on the inner surface of the peripheral member 3 to ensure that the outer surface of the peripheral member 3 engages with the ear canal. In addition, the support element 60 can also prevent a portion of the peripheral member 3, ie the portion at the rear end, from being turned inside.

[0171] In the illustrated embodiment, the support element 60 includes a plurality of arcuate fins / ribs 60A made of a flexible / semi-flexible material to allow the peripheral member 3 to move relative to the central portion 2. The arcuate fins 60A are attached to the inner surface of the peripheral member 3 and the outer surface of the central portion 2 at opposite ends of the fins / ribs. Due to the arcuate shape of the fins 60A, the shape of the peripheral member 3 can be changed during the insertion of the dome 1 into the ear canal.

[0172] Fig.14 Different views of a dome 1 comprising a valve 30 and a personal audio device 15 in the form of a receiver are shown. The dome 1 comprises a support element 60 arranged in a cavity 11.

[0173] The support element 60 is arranged to generate pressure on the inner surface of the peripheral member 3 to ensure that the outer surface of the peripheral member 3 engages with the ear canal. In addition, the support element 60 can also prevent a portion of the peripheral member 3, ie the portion at the rear end, from being turned inside.

[0174] In the illustrated embodiment, the support element 60 comprises a spiral element 60 attached at one end to the inner surface of the peripheral member 3 and at the other end to the outer surface of the central portion 2. The spiral element 60 is made of a rigid / semi-flexible material to allow it to be compressed. Due to the spiral shape of the support element 60, the peripheral member 3 can move relative to the central portion 2.

[0175] Fig.15 Different views of a dome 1 comprising a valve 30 and a personal audio device 15 in the form of a receiver are shown. The dome 1 comprises a barrier member 50 arranged in a cavity 11.

[0176] In the illustrated embodiment, the barrier member 50 is formed by a filter comprising a plurality of layered elements 52 to prevent earwax from entering the cavity 11. The barrier member 50 extends circumferentially around the central portion 2 from the inner surface 13 of the circumferential member to the outer surface 12 of the central portion 2.

[0177] The layered element 52 includes a deformable cavity 53 to allow the barrier member 50 to deform, thereby allowing the peripheral member 3 to be compressed when inserted. Therefore, the barrier member 50 can also act as a support element, generating pressure on the inner surface of the peripheral member 3 to ensure that the outer surface of the peripheral member 3 engages with the ear canal.

[0178] Detail A( Fig.15 On the right side) shows an expanded view of the layered element 52 with a deformable cavity 53.

[0179] Fig.16 Different views of a dome 1 including a valve 30 and a personal audio device 15 in the form of a receiver are shown. The dome 1 includes a protective element 70 which is arranged circumferentially around the central part 2 at the location of the sound opening 32 (see FIG. Figure 4 , Fig. 7A and Figure 7B ), to prevent earwax from entering the valve 30 (not shown) via the sound orifice 32 (not shown). In the illustrated embodiment, the protective element 70 comprises, for example, a polymer-based woven mesh. In an alternative embodiment, the protective element may be in the form of a foam.

[0180] Fig.17 Different views of a dome 1 comprising a valve 30 and a personal audio device 15 in the form of a receiver are shown. The dome 1 comprises a barrier member 50 arranged in a cavity 11.

[0181] In the illustrated embodiment, barrier member 50 is a foam that is attached to the inner surface of peripheral member 3 and central portion 2 using an adhesive. Foam 50 extends circumferentially around central portion 2 from inner surface 13 of the peripheral member to outer surface 12 of central portion 2.

[0182] The foam 50 provides a barrier to prevent the ingress of cerumen while also preventing a portion of the circumferential member 3, ie the portion at the rear end, from being turned inside out. The thickness, material and density (PPI) of the foam may vary from one embodiment to another.

[0183] Fig.18Different views of the dome 1 and the personal audio device 15 are shown including the valve 30. The dome 1 includes a barrier member 50 arranged in the cavity 11. The barrier member 50 is configured to restrict earwax from entering the cavity 11.

[0184] In the illustrated embodiment, the barrier member 50 includes a plurality of rib members 50A, 50B, wherein a first group of rib members 50B extends from the outer surface 12 of the central portion 2 toward the peripheral member 3, and a second group of rib members 50A extends from the inner surface of the peripheral member 3 toward the central portion 2. By alternately arranging the first group and the second group of rib members 50B in the longitudinal direction, the opening to the cavity 11 is partially blocked by the barrier path, thereby reducing the risk of earwax entering. Fig.10 The illustrated rib member 50A is similar except that the rib member 50B extends along only a portion of the inner and outer surfaces 13, 12, respectively.

[0185] In the illustrated embodiment, the first and second groups of rib members 50B extend substantially perpendicular to the longitudinal direction. However, it should be understood that at least some of the rib members may be arranged at different angles, i.e., not perpendicular to the longitudinal direction. The number of rib members may also be different.

[0186] Fig.18 The dome 1 shown comprises both a set of first rib members and a set of second rib members. In alternative embodiments, only a set of first rib members or only a set of second rib members may be used.

[0187] Fig.19 Different views of a dome 1 and a personal audio device 15 are shown comprising a valve 30. The dome 1 comprises a barrier member 50 arranged in a cavity 11.

[0188] In the illustrated embodiment, the barrier member 50 comprises a fiber element that is attached to the inner surface of the peripheral member 3 and the central portion 2 using an adhesive. The fiber element 50 comprises a plurality of fibers, such as fibers made of silicone, that are attached to each other to form a fiber element. The fiber element 50 extends circumferentially around the central portion 2 from the inner surface 13 of the peripheral member to the outer surface 12 of the central portion 2.

[0189] The barrier member 50 provides a barrier to prevent the ingress of earwax. The soft / flexible fibers allow the circumferential member 3 to deform.

[0190] Detail A( Fig.19 On the right) an expanded view of the fiber element 50 is shown.

[0191] Figures 20A-20E Different views of a dome 1 are shown, the dome comprising a barrier member 50 arranged in a cavity 11 .

[0192] The illustrated barrier member 50 includes a first barrier 54A and a second barrier 54B (see Fig. 20C The first and second barriers 54A, 54B are both arranged circumferentially around the central portion 2 and extend transversely to the longitudinal direction from the outer surface of the central portion 2 to the inner surface of the peripheral member 3. The first and second barriers 54A, 54B are arranged longitudinally offset from each other in the cavity 11.

[0193] The first barrier 54A includes a plurality of first ribs 55A extending outward from the central portion 2 at a first angle, and the second barrier 54A includes a plurality of second ribs 55B extending outward from the central portion 2 at a second angle, wherein the first and second angles are different from each other, so that the first ribs 55A intersect the second ribs 55B (see FIG. Fig.20E ).

[0194] The first and second barriers 54A, 54B are arranged closer to the rear end 9 than the front end 8 to limit the earwax from entering deeper into the cavity 11. The first and second barriers 54A, 54B are arranged to contact each other. The front side of the first barrier 54A contacts the rear side of the second barrier 54B, wherein the first barrier 54A is positioned closer to the rear end 9 of the circumferential member 3 than the second barrier.

[0195] The first end of each rib 55A, 55B is attached to a base member 56A (see FIG. Fig.20E ). The second base element 56B is arranged along the inner surface of the circumferential member 3. The second end opposite to the first end of each rib 55A, 55B is attached to the second base element 56B. The rib and the base element may be molded as one piece.

[0196] In the illustrated embodiment, the first and second ribs 55A, 55B are curved, each first rib 55A is identical, and each second rib 55B is identical. In addition, the first barrier 54A and the second barrier 54B are substantially identical, wherein the different angles of the first and second ribs are achieved by mirroring the second barrier.

[0197] Figures 21A-21C A different embodiment of a dome 1 is shown comprising one or more reinforcing ribs 80 arranged to prevent buckling of the circumferential member 3. The reinforcing ribs 80 are arranged along the inner surface 13 of the circumferential member 2 to increase the stiffness of the circumferential member.

[0198] exist Fig.21A In the embodiment shown, the reinforcing ribs 80 are arranged circumferentially along the inner surface 13 of the peripheral member 2 at the rear end 9. The reinforcing ribs 80 extend from the inner surface 13 and terminate at the outer surface 12 of the central portion 2.

[0199] exist Fig.21BIn the illustrated embodiment, a plurality of reinforcing ribs 80 are arranged along the inner surface 13 to extend substantially in the longitudinal direction from the rear end 9 toward the front end 8 , and only two reinforcing ribs 80 are shown in cross section.

[0200] exist Fig. 21C In the illustrated embodiment, a reinforcing rib 80 is circumferentially arranged along the inner surface 13 of the circumferential member 2 at the rear end 9 , and a plurality of reinforcing ribs 80 extending from the rear end 9 toward the front end 8 are arranged along the inner surface 13 .

[0201] The reinforcing ribs are made of a flexible material to allow the circumferential member 3 to adapt to the shape of the ear canal, facilitating the insertion and removal of the dome 1 .

[0202] Fig. 22 Different views of a dome 1 including a valve 30 and a personal audio device 15 in the form of a receiver are shown.

[0203] The peripheral member 3 is attached to the central part 2 at a first end. The peripheral member 3 is folded at the rear end and attached to the second end of the central part 2 by bonding, thereby forming an encapsulated dome structure. This encapsulation structure prevents the rear of the peripheral member 3 from turning inward.

[0204] Furthermore, attaching the peripheral member 3 at the rear end can also prevent earwax from entering. In the illustrated embodiment, the peripheral member is molded from silicone, which allows the peripheral member 3 to be deformed, thereby facilitating the insertion or removal of the dome into or from the ear canal.

[0205] Fig.23A A cross section of a dome 1 is shown, the dome comprising a central portion 2 , a peripheral member 3 and a barrier member 50 comprising a foam arranged in a cavity 11 . Fig. 23B The dome 1 is shown from the outside. Fig.23A It is shown how the peripheral member 3 can be attached to the central part 2 in an inverted state (inside out).

[0206] The peripheral member 3 includes a collar member 23 formed by a wall portion extending from the inner surface of the peripheral member 3 and terminating at the free end 23. The collar member 23 extends parallel to the longitudinal direction to form a space into which the first end 5 of the central part 2 is inserted and fixed. After the central part 2 is inserted into the space formed by the collar member 23, the peripheral member 3 is rotated so that the inner side faces the outer surface of the central part 2, thereby extending the collar 23 into the cavity 11. The inner surface of the peripheral member 3 can be bonded to the barrier member 50.

[0207] Figures 24A-24F and Figures 25A-25GDifferent views of the dome 1 and a personal audio device 15 in the form of a receiver are shown, wherein the central portion 2 and the peripheral member 3 each include attachment structures 90A, 90B for releasably attaching the peripheral member 3 to the central portion 2.

[0208] In the illustrated embodiment, the central portion 2 includes two ribs 90A extending outwardly from the outer surface at a position close to the first end 5. The peripheral member 3 includes two indentations 90B located on the inner surface of the collar member 23. Both the ribs 90A and the indentations 90B are arranged substantially perpendicular to the longitudinal direction. When the central portion 2 is inserted into the space formed by the collar member 23, the ribs 90A are inserted into the indentations 90B. Insertion of the central portion 2 into the space is facilitated by the peripheral portion 3 being made of a second material that is more flexible than the first material used to make the central portion 2.

[0209] exist Fig.24D and 24E In FIG. 1 , arrow X indicates the path of sound from receiver 15 toward the ear canal. Fig.24F and 25D A cross-section of the dome 1 with the receiver 15 in the longitudinal direction is shown.

[0210] exist Figures 25A-25G In the embodiment shown, the central part 2 is formed by a relatively short first part 2A and a longer second part 2B. In the cross-sectional view, the receiver 15 is arranged in the second part 2B. When the first and second parts 2A, 2B are attached to each other, the receiver 15 is completely surrounded by the central part 2.

Claims

1. A dome for a personal audio device, the dome comprising: a central portion defining a passage extending in a longitudinal direction between a first end and an opposite second end, wherein a first sound opening is arranged at the first end, the first sound opening being configured for the passage of sound, a circumferential member arranged circumferentially around the central portion, the circumferential member being attached to the central portion at the first end and extending in a longitudinal direction between a front end and a rear end, wherein a second sound opening is arranged at the front end, the second sound opening being configured for passage of sound, a cavity formed in a longitudinal direction along at least a portion of an outer surface of the central portion and at least a portion of an inner surface of the peripheral member, a first sound path disposed in the passageway, the first sound path configured to conduct sound from the personal audio device to an ear canal of a user via the first sound opening and the second sound opening, wherein the central portion is formed of a first material and the peripheral members are formed of a second material, the second material being more flexible than the first material, and wherein a first length of the circumferential member in the longitudinal direction from the front end to the rear end is in a range from 25% to less than 100% of a second length of the central portion in the longitudinal direction from the first end to the second end.

2. The dome of claim 1, wherein the central portion includes an engagement structure configured to releasably lock a personal audio device to the dome when the personal audio device is inserted into the channel.

3. The dome of claim 2, wherein the engagement structure is disposed in the channel, the engagement structure having a shape matching a shape of a portion of an outer surface of the personal audio device for mechanically locking the personal audio device in the channel.

4. The dome of any one of claims 2-3, wherein the engagement structure is arranged closer to the second end than the first end.

5. A dome according to any one of the preceding claims, wherein support elements are at least partially arranged circumferentially around the central portion to support the peripheral member along a portion of its inner surface between the front and rear ends.

6. The dome of any one of the preceding claims, further comprising a barrier member disposed in the cavity, the barrier member being configured to restrict entry of earwax into the cavity by providing an obstruction element in the cavity.

7. The dome of claim 6, wherein the barrier member comprises a first barrier and a second barrier, each of the first barrier and the second barrier being arranged circumferentially around the central portion and extending transversely to the longitudinal direction from an outer surface of the central portion to an inner surface of the circumferential member, the first barrier and the second barrier being arranged longitudinally offset from each other within the cavity, wherein the first barrier comprises a plurality of first ribs extending outwardly from the central portion at a first angle, and the second barrier comprises a plurality of second ribs extending outwardly from the central portion at a second angle, the first angle and the second angle being different from each other.

8. A dome according to any one of the preceding claims, wherein at least one sound aperture is arranged in the central portion at a distance from the first end, the at least one sound aperture being configured for the passage of sound between the passage and the cavity.

9. The dome of claim 8, wherein the at least one sound aperture is arranged to at least partially overlap a valve opening in a valve arranged in the channel to allow sound to pass between the channel and the cavity via the valve, the valve forming a second sound path configured for sound to enter and exit the ear canal.

10. A dome according to any one of the preceding claims, wherein a protection element is arranged at the first sound opening to limit the entry of cerumen into the passage. 11 . The dome according to claim 10 , wherein the additional protection element is arranged offset in the longitudinal direction relative to the protection element, the protection element being closer to the first sound opening than the additional protection element.

12. Dome according to claims 10 and 11, wherein the permeability of the additional protection element is greater than the permeability of the protection element.

13. The dome according to any one of claims 10-12, wherein the protection element is formed integrally with the central portion.

14. A dome according to any one of the preceding claims, wherein the peripheral member comprises a collar member extending into the cavity and terminating at a free end, the collar member having a shape matching an outer shape of a portion of the central portion for attaching the peripheral member to the central portion.

15. A dome according to any preceding claim, wherein at least one reinforcing rib is arranged along the inner surface of the circumferential member to increase the stiffness of the circumferential member.

16. A dome according to any one of the preceding claims, wherein at least one connecting element is arranged at the rear end, the connecting element connecting the peripheral member to the central part.

17. A dome according to any preceding claim, wherein the peripheral members are attached to the central portion by bonding or moulding.

18. A dome for a personal audio device, the dome comprising: a central portion defining a passage extending in a longitudinal direction between a first end and an opposite second end, wherein a first sound opening is arranged at the first end, the first sound opening being configured for the passage of sound, a circumferential member arranged circumferentially around the central portion, the circumferential member being attached to the central portion at the first end and extending in a longitudinal direction between a front end and a rear end, wherein a second sound opening is arranged at the front end, the second sound opening being configured for passage of sound, a cavity formed in a longitudinal direction along at least a portion of an outer surface of the central portion and at least a portion of an inner surface of the peripheral member, a first sound path disposed in the passageway, the first sound path configured to conduct sound from the personal audio device to an ear canal of a user via the first sound opening and the second sound opening, wherein the central portion is formed of a first material and the peripheral members are formed of a second material, the second material being more flexible than the first material, and The center portion includes an engagement structure configured to releasably lock the personal audio device to the dome when the personal audio device is inserted into the channel, and the center portion is configured to accommodate at least 50% of the personal audio device in the channel.

19. A hearing device comprising a dome according to any preceding claim and a personal audio device.

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