Headphone and ear muff structure thereof

Abstract

The invention discloses a headphone and an ear muff structure thereof, and relates to the technical field of earphones. Each ear muff structure comprises an ear muff cover, a flexible ear muff shell and a flexible ear muff lining, one side of the ear muff cover forms an installation area used for being connected with the head beam, and one side, deviating from the installation area, of the ear muff cover forms a connection area and a containing area; the flexible earmuff shell is positioned on one side, deviating from the mounting area, of the earmuff cover; the flexible ear muff shell continuously extends from the outer ring end to the inner ring end to form an arc-shaped structure which is bent in the direction away from the ear muff cover, the outer ring end is connected with the connecting area, the inner ring end is arranged towards the containing area, the inner ring end and the containing area are distributed at intervals, and a main containing cavity is defined by the inner ring end and the containing area; the flexible earmuff lining is arranged on the side, facing the containing area, of the flexible earmuff shell, an auxiliary containing cavity communicated with the main containing cavity is defined by the flexible earmuff lining, the connecting area and the containing area, and the earmuff lining is provided with a breathable sound absorption structure capable of absorbing sound waves. According to the invention, not only can the wearing comfort be improved, but also the acoustic effect of the headphone can be improved.

Description

Technical Field

[0001] This invention relates to the field of headphone technology, and in particular to a headphone and its earcup structure. Background Technology

[0002] In the existing ear cup structure of headphones, the ear cup often adopts the traditional design of using fabric or leather to cover the foam and the ear cup cover. The foam and the ear cup cover are seamlessly connected, leaving only the space surrounded by the foam to accommodate the wearer's ears. This results in poor wearing comfort and fails to improve the acoustic performance of the headphones. Summary of the Invention

[0003] The main objective of this invention is to propose a type of over-ear headphone and its earcup structure, which aims to solve the technical problem that the earcup structure of existing over-ear headphones has poor wearing comfort and cannot improve the acoustic performance of the over-ear headphones.

[0004] To achieve the above objectives, the present invention proposes an earcup structure for a headset, the earcup structure of which includes: The earcup has a mounting area on one side for connecting to the headband of the headphones. The side of the earcup opposite to the mounting area has a connecting area and a receiving area, with the connecting area surrounding the outer periphery of the receiving area. A flexible earbud shell is located on the side of the earbud cover away from the mounting area. The two ends of the flexible earbud shell are an inner ring end and an outer ring end surrounding the inner ring end. The flexible earbud shell extends continuously from the outer ring end to the inner ring end, forming an arc-shaped structure that bends away from the earbud cover. The outer ring end is connected to the connecting area, and the inner ring end is a free end that faces the receiving area and is spaced apart from the receiving area. The inner ring end and the receiving area together form a main receiving cavity, and there is an opening between the outer ring end and the inner ring end. A flexible ear cup liner is disposed on the side of the flexible ear cup shell facing the receiving area, and the flexible ear cup liner, the connecting area and the receiving area together form a secondary receiving cavity. The main receiving cavity and the secondary receiving cavity are connected to form a total receiving cavity for receiving the wearer's ear. The flexible ear cup liner is provided with a breathable sound-absorbing structure that can absorb sound waves.

[0005] In one embodiment, the flexible earpiece shell includes a support section, an ear-fitting section, and an extension section. The support section, the ear-fitting section, and the extension section are smoothly connected sequentially from the outer ring end to the inner ring end. The end of the support section away from the ear-fitting section forms the outer ring end, and the end of the extension section away from the ear-fitting section forms the inner ring end. The support section, the ear-fitting section, and the extension section together form a mounting groove. The opening forms the slot of the mounting groove, and the mounting groove communicates with the secondary accommodating cavity through the opening. The flexible earpiece liner is installed in the mounting groove, and the flexible earpiece liner abuts against the support section, the ear-fitting section, and the extension section.

[0006] In one embodiment, the support segment protrudes in a first direction, the ear-attaching segment protrudes in a second direction, and the extension segment protrudes in a third direction. The first direction, the second direction, and the third direction are different from each other, and the first direction, the second direction, and the third direction are all different from a reference direction, which is the direction extending from any position of the flexible earbud shell to the earbud cover.

[0007] In one embodiment, the support segment is connected to one side of the connection area along the first direction via the outer ring end, the ear segment is at least partially disposed opposite the connection area along the second direction, the extension segment is located on one side of the connection area along the third direction, and the extension segment is disposed corresponding to the area of ​​the receiving area close to the connection area.

[0008] In one embodiment, along the second direction, the distance between the receiving area and the inner ring end is greater than the distance between the receiving area and the outer ring end.

[0009] In one embodiment, along the second direction, the straight length of the support segment is 6mm to 25mm, and the straight length of the extension segment is 5mm to 30mm; Along the first direction, the straight length of the ear-attached segment is 5mm to 30mm, and the distance between the outer surface of the ear-attached segment and the inner ring end along the second direction is 5mm to 60mm.

[0010] In one embodiment, the distance from the outer surface to the inner surface of the flexible earpiece shell is its thickness; The inner surface of the flexible earbud shell is a curved surface that extends smoothly from the outer ring end to the inner ring end, and the outer surface of the flexible earbud shell is a curved surface that extends smoothly from the outer ring end to the inner ring end. The thickness of the flexible earpiece shell gradually decreases along the direction from the outer ring end to the inner ring end.

[0011] In one embodiment, the distance from the outer surface to the inner surface of the flexible earpiece shell is its thickness; The inner surface of the flexible earbud shell is a curved surface that extends smoothly from the outer ring end to the inner ring end; the outer surface of the flexible earbud shell from the outer ring end to the inner ring end is composed of multiple non-curved surfaces connected in sequence, or the outer surface of the flexible earbud shell from the outer ring end to the inner ring end is composed of several curved surfaces and several non-curved surfaces connected in sequence or alternately. The thickness of the support segment is greater than the thickness of the ear-attachment segment, and the thickness of the ear-attachment segment is greater than the thickness of the extension segment.

[0012] In one embodiment, the distance from the outer surface to the inner surface of the flexible earpiece shell is its thickness; The thickness of the support section is 3mm to 20mm, the thickness of the ear section is 1.5mm to 10mm, and the thickness of the extension section is 1mm to 4mm.

[0013] In one embodiment, the hardness of the support segment is less than the hardness of the ear segment, and the hardness of the ear segment is less than the hardness of the extension segment.

[0014] In one embodiment, the end of the flexible earbud liner corresponding to the outer ring end is a first end, and the end of the flexible earbud liner corresponding to the inner ring end is a second end; wherein, the first end extends out of the opening in the direction of the connecting area and abuts against the connecting area, and the second end is located inside the flexible earbud shell and is disposed close to the opening.

[0015] In one embodiment, the outer surface of the flexible earbud liner matches the shape of the inner surface of the flexible earbud shell to continuously fit the inner surface of the flexible earbud shell; the inner surface of the flexible earbud liner is an arc-shaped surface that protrudes toward its outer surface and fits and conforms to the wearer's ear.

[0016] In one embodiment, the flexible earpiece liner includes at least two breathable and sound-absorbing layers arranged sequentially from its inner surface to its outer surface, and the at least two breathable and sound-absorbing layers are provided with the breathable and sound-absorbing structure.

[0017] In one embodiment, the flexible earpiece liner includes four breathable and sound-absorbing layers arranged sequentially from its inner surface to its outer surface; Along the direction from the inner surface to the outer surface of the flexible earpiece liner, the four breathable sound-absorbing layers are a textured layer, a support layer, a transition layer, and abutment layer, respectively; wherein, the textured layer has a sound-absorbing texture and is a breathable layer, and the support layer, the transition layer, and the abutment layer are all provided with multiple breathable micropores; the sound-absorbing texture, the breathable layer, and the breathable micropores form the breathable sound-absorbing structure. In one embodiment, the sound-absorbing texture is a plurality of spaced-apart convex hull structures, each of which protrudes from the texture layer toward the sub-accommodating cavity; Alternatively, the sound-absorbing texture may be a honeycomb structure with multiple spaced intervals; Alternatively, the sound-absorbing texture may be a plurality of annular grilles arranged sequentially from the first end to the second end, and each annular grille structure may be an annular closed grille extending circumferentially along the texture layer. Alternatively, the sound-absorbing texture may be a plurality of strip grilles arranged sequentially along the circumference of the texture layer, with each strip grille extending from the first end to the second end; Alternatively, the sound-absorbing texture may be a plurality of sound-absorbing channels disposed on the side of the texture layer facing the secondary cavity, the plurality of sound-absorbing channels being arranged sequentially along the circumference of the texture layer, and each sound-absorbing channel group including multiple streamlined sound-absorbing channels.

[0018] In one embodiment, the distance from the outer surface to the inner surface of each of the breathable sound-absorbing layers is its thickness; wherein, the thickness of the transition layer is greater than the thickness of the support layer, the thickness of the support layer is the same as or substantially the same as the thickness of the abutment layer, and the thickness of the transition layer is twice or nearly twice the thickness of the texture layer.

[0019] In one embodiment, the hardness of the transition layer is less than that of the support layer, the hardness of the support layer is the same as or substantially the same as that of the abutment layer, and the hardness of the transition layer is half or nearly half that of the texture layer.

[0020] In one embodiment, the textured layer is made of a breathable material, or the textured layer has a plurality of breathable micropores; The pore size of the breathable micropores in the support layer is smaller than that in the transition layer, and the pore size of the breathable micropores in the transition layer is smaller than that in the abutment layer. The distribution density of the breathable micropores in the support layer is less than that in the transition layer, and the distribution density of the breathable micropores in the transition layer is less than that in the abutment layer.

[0021] In one embodiment, the pore size of the breathable micropores in the support layer is 0.02mm to 0.025mm, and the distance between any two adjacent breathable micropores is 0.01mm to 0.02mm. The pore size of the breathable micropores in the transition layer is 0.025mm~0.035mm, and the distance between any two adjacent breathable micropores is 0.02mm~0.03mm. The pore size of the breathable micropores in the abutment layer is 0.05mm to 0.1mm, and the distance between any two adjacent breathable micropores is 0.04mm to 0.05mm.

[0022] In one embodiment, the outer surface of the flexible earpiece shell is further covered with a flexible covering layer, which completely covers the outer surface of the flexible earpiece shell, and the inner edge and outer edge of the flexible covering layer are fixed to the inner ring end and the outer ring end, respectively.

[0023] In one embodiment, the outer edge of the flexible covering layer forms an outer extension that covers the end of the outer ring and continues to extend toward the secondary accommodating cavity. An annular metal gasket is arranged circumferentially on the outer extension. A magnet is provided in the connecting area, and the magnet attracts the metal gasket to install the outer extension onto the connecting portion.

[0024] In one embodiment, the inner edge of the flexible covering layer forms a shape that covers the end of the inner ring and continues to extend toward the inner surface of the flexible earpiece shell until it connects with the flexible earpiece liner.

[0025] In one embodiment, the receiving area is recessed from the surface where the connecting area connects to the outer ring end toward the mounting area.

[0026] The present invention also proposes a headphone, the headphone including a headband and two earcup structures as described above, wherein the mounting areas of the two earcup structures are respectively connected to both ends of the headband.

[0027] The earcup structure of this invention's over-ear headphones expands the wearing space for the wearer's ears by connecting the secondary and main accommodating cavities into a total accommodating cavity. This provides ample ear space without compressing the ears, conforms to ergonomic design, and enhances wearing comfort. Furthermore, the flexible earcup shell has an outwardly curved arc structure, providing installation space for the flexible earcup liner and facilitating the expansion of the total accommodating cavity. In addition, the flexible earcup liner, connecting area, and accommodating area together form the secondary accommodating cavity, presenting a hollowed-out effect with a unique and aesthetically pleasing design. Moreover, the flexible earcup liner is relatively soft, better covering the wearer's ears and further enhancing wearing comfort. Furthermore, the flexible earcup liner also incorporates a breathable sound-absorbing structure that absorbs sound waves, allowing it to be breathable while absorbing sound, reducing sound wave reflection or leakage, and improving the acoustic performance of the over-ear headphones. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a headset according to an embodiment of the present invention; Figure 2 This is a partial cross-sectional schematic diagram of a headset according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the flexible earcup shell and flexible covering layer in the earcup structure of a headset according to an embodiment of the present invention; Figure 4 This is a schematic diagram showing the relevant dimensions of the flexible earcup shell in the earcup structure of a headset according to an embodiment of the present invention; Figure 5 This is an assembly diagram of the flexible earcup shell, flexible earcup liner, and flexible covering in the earcup structure of a headset according to an embodiment of the present invention. Figure 6 This is an assembly diagram of the flexible earcup shell, flexible earcup liner, and flexible covering in the earcup structure of a headset according to another embodiment of the present invention. Figure 7 This is a cross-sectional schematic diagram of the ear cup structure of a headset according to an embodiment of the present invention; Figure 8 (1) is a schematic diagram of an example of the flexible earbud shell in the earbud structure of the headphones of the present invention; Figure 8 (2) is a schematic diagram of another example of the flexible earbud shell in the earbud structure of the headphones of the present invention; Figure 8 (3) is a schematic diagram of another example of the flexible earbud shell in the earbud structure of the headphones of the present invention; Figure 9 (4) is a schematic diagram of an example of the sound-absorbing texture of the flexible ear cup liner in the ear cup structure of the headphones of the present invention; Figure 9 (5) is a schematic diagram of another example of the sound-absorbing texture of the flexible ear cup liner in the ear cup structure of the headphones of the present invention; Figure 9 (6) is a schematic diagram of another example of the sound-absorbing texture of the flexible ear cup liner in the ear cup structure of the headphones of the present invention; Figure 9 (7) is a schematic diagram of another example of the sound-absorbing texture of the flexible ear cup liner in the ear cup structure of the headphones of the present invention; Figure 9(8) is a schematic diagram of other examples of the sound-absorbing texture of the flexible ear cup lining in the ear cup structure of the headphones of the present invention.

[0030] Explanation of icon numbers: 100. Earpiece structure; 10. Earpiece cover; 11. Mounting area; 12. Connecting area; 121. Magnet; 13. Receiving area; 20. Flexible earpiece shell; 21. Outer ring end; 22. Inner ring end; 23. Opening; 24. Support section; 25. Ear-fitting section; 26. Extension section; 27. Mounting groove; 30. Flexible earpiece liner; 31. First end; 32. Second end; 33. Textured layer; 331. Sound-absorbing texture; 331a. Convex structure; 331b. Honeycomb structure; 331c, annular grid; 331d, strip grid; 331e, sound absorption channel; 34, support layer; 35, transition layer; 36, abutment layer; 37, first inner lining section; 38, second inner lining section; 39, third inner lining section; 40, main accommodating cavity; 50, secondary accommodating cavity; 60, total accommodating cavity; 70, breathable sound-absorbing structure; 80, flexible covering layer; 81, outer extension; 82, metal gasket; 200, headphones; 201, headband.

[0031] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0035] In the existing ear cup structure of headphones, the ear cup often adopts the traditional design of using fabric or leather to cover the foam and the ear cup cover. The foam and the ear cup cover are seamlessly connected, leaving only the space surrounded by the foam to accommodate the wearer's ears. This results in poor wearing comfort and fails to improve the acoustic performance of the headphones.

[0036] To address the aforementioned problems, this invention proposes a headset and its earcup structure.

[0037] In one embodiment, the earcup structure 100 of the headphones 200 includes an earcup cover 10, a flexible earcup shell 20, and a flexible earcup liner 30. One side of the earcup cover 10 forms a mounting area 11 for connection to the headband 201 of the headphones 200. The side of the earcup cover 10 opposite to the mounting area 11 has a connecting area 12 and a receiving area 13, with the connecting area 12 surrounding the outer periphery of the receiving area 13. The flexible earcup shell 20 is located on the side of the earcup cover 10 opposite to the mounting area 11. The two ends of the flexible earcup shell 20 are an inner ring end 22 and an outer ring end 21 surrounding the inner ring end 22, respectively, and the flexible earcup shell 20 extends continuously from the outer ring end 21 to the inner ring end 22. The structure forms an arc-shaped structure that bends away from the ear cover 10. The outer ring end 21 is connected to the connecting area 12, and the inner ring end 22 is a free end that faces the receiving area 13 and is spaced apart from the receiving area 13. The inner ring end 22 and the receiving area 13 enclose the main receiving cavity 40, and there is an opening 23 between the outer ring end 21 and the inner ring end 22. The flexible ear cover liner 30 is disposed on the side of the flexible ear cover shell 20 facing the receiving area 13, and the flexible ear cover liner 30, the connecting area 12 and the receiving area 13 enclose the secondary receiving cavity 50. The main receiving cavity 40 and the secondary receiving cavity 50 are connected to form a total receiving cavity 60 for receiving the wearer's ear. The flexible ear cover liner 30 is provided with a breathable sound-absorbing structure 70 that can absorb sound waves.

[0038] like Figure 1 and Figure 2As shown, the earcup structure 100 in this embodiment is the earcup structure 100 of the over-ear headphones 200. It can be understood that the over-ear headphones 200 includes a headband 201 and two earcup structures 100. The two earcup structures 100 are respectively installed at the left and right ends of the headband 201. Specifically, the mounting areas 11 of the two earcup structures 100 are respectively connected to the left and right ends of the opening of the headband 201. This embodiment uses one earcup structure 100, such as the right earcup structure 100, as an example for explanation. The left earcup structure 100 can be mirrored on the right.

[0039] The earbud structure 100 of the present invention includes an earbud cover 10, a flexible earbud shell 20, and a flexible earbud liner 30. Both the flexible earbud shell 20 and the flexible earbud liner 30 are flexible components that can contact the wearer's ear, improving wearing comfort. The earbud cover 10 is a rigid shell, which can be injection molded from rigid plastic, and provides support for the flexible earbud shell 20 and the flexible earbud liner 30.

[0040] Taking the right earcup structure 100 as an example, a mounting area 11 is formed on one side of the earcup 10, i.e., the right side or back side. This mounting area 11 can be used to connect with the headband 201 of the headphones 200, realizing the assembly between the flexible earcup shell and the headband 201. On the side of the earcup 10 away from the mounting area 11, i.e., the left side or front side of the earcup 10, a connecting area 12 and a receiving area 13 are formed. The connecting area 12 is arranged around the outer periphery of the receiving area 13, that is, the connecting area 12 is the edge area of ​​the earcup 10, and the receiving area 13 is the middle area of ​​the earcup 10. The flexible earcup shell 20 is located on the front side of the earcup 10. The flexible earcup shell 20 and the flexible earcup liner 30 are both in a ring-shaped closed structure for the wearer to wear on their ears. Its two ends are an inner ring end 22 and an outer ring end 21, with the outer ring end 21 surrounding the inner ring end 22. The flexible earpiece shell 20 extends continuously from its outer ring end 21 to its inner ring end 22, forming an arc-shaped structure that bends to the left, away from the earpiece cover 10. The outer ring end 21 connects to the connecting area 12, enabling assembly with the earpiece cover 10. The inner ring end 22 is a free end, and it faces and is spaced apart from the receiving area 13. That is, there is a gap between the inner ring end 22 and the receiving area 13; they are not seamlessly connected. This provides the conditions for subsequent communication between the main receiving cavity 40 and the secondary receiving cavity 50. The inner ring end 22 and the receiving area 13 together form the main receiving cavity 40.

[0041] It should be noted that, as Figure 2The schematic cross-sectional view of the earpiece structure 100 shown illustrates that the arc-shaped structure refers to the flexible earphone shell extending continuously from its outer ring end 21 to its inner ring end 22, forming an arc-shaped structure in the cross-section. Furthermore, due to the opening 23 between the outer ring end 21 and the inner ring end 22, the flexible earphone shell is not a traditional closed ring structure, but rather an arc-shaped structure with an opening 23, resulting in a unique and novel design. This provides the necessary connection between the main accommodating cavity 40 and the secondary accommodating cavity 50. Moreover, the arc-shaped structure bends away from the earpiece cover 10, i.e., outwards, providing installation space for the flexible earpiece liner 30 and facilitating the expansion of the total accommodating cavity 60.

[0042] like Figure 2 As shown, the flexible earbud liner 30 is located on the side of the flexible earbud shell 20 facing the receiving area 13, that is, the flexible earbud liner 30 is located on the right side of the flexible earbud shell 20. The arc-shaped structure of the flexible earbud shell 20 provides installation space for the flexible earbud liner 30, and the flexible earbud shell 20 can support the flexible earbud liner 30. The side of the flexible earbud liner 30 facing the receiving area 13 means that the inner side of the flexible earbud liner 30 does not fully contact the connecting area 12, nor does it contact the receiving area 13. Instead, it forms a secondary receiving cavity 50 with the connecting area 12 and the receiving area 13. The secondary receiving cavity 50 is connected to the main receiving cavity 40 to form a total receiving cavity 60, making the total receiving cavity 60 relatively large.

[0043] Compared to existing technologies that only accommodate the wearer's ears, the earcup structure 100 of the present invention, by connecting the secondary accommodating cavity 50 and the main accommodating cavity 40 to form a total accommodating cavity 60, expands the wearing space for the wearer's ears, providing ample space without compressing the ears. This is more ergonomic and enhances wearing comfort. Furthermore, the flexible earcup shell 20 has an outwardly curved arc structure, providing installation space for the flexible earcup liner 30 and facilitating the expansion of the total accommodating cavity 60. In addition, the flexible earcup liner 30, together with the connecting area 12 and the accommodating area 13, forms the secondary accommodating cavity 50, presenting a hollowed-out effect with a unique and aesthetically pleasing design. Moreover, the flexible earcup liner 30 is relatively soft, better covering the wearer's ears and further enhancing wearing comfort. Furthermore, the flexible ear cup liner 30 is also equipped with a breathable sound-absorbing structure 70 that can absorb sound waves, making it breathable while also absorbing sound, reducing sound wave reflection or leakage, and improving the acoustic effect of the headphones 200.

[0044] To improve the aesthetics, ease of assembly, and ergonomic design of the earbud structure 100, the flexible earbud shell 20 can be divided into multiple segments along the direction from the outer ring end 21 to the inner ring end 22. In one embodiment, the flexible earbud shell 20 can be divided into three segments along the direction from the outer ring end 21 to the inner ring end 22; in other embodiments, the flexible earbud shell 20 can be divided into two, four, five, or other number of segments along the direction from the outer ring end 21 to the inner ring end 22. This invention will be described using a three-segment structure of the flexible earbud shell 20 along the direction from the outer ring end 21 to the inner ring end 22 as an example.

[0045] In one embodiment, the flexible earpiece shell 20 includes a support section 24, an ear-fitting section 25, and an extension section 26. The support section 24, the ear-fitting section 25, and the extension section 26 are smoothly connected sequentially from the outer ring end 21 to the inner ring end 22. The end of the support section 24 away from the ear-fitting section 25 forms the outer ring end 21, and the end of the extension section 26 away from the ear-fitting section 25 forms the inner ring end 22. The support section 24, the ear-fitting section 25, and the extension section 26 together form a mounting groove 27. An opening 23 forms the opening of the mounting groove 27, and the mounting groove 27 communicates with the secondary accommodating cavity 50 through the opening 23. The flexible earpiece liner 30 is installed in the mounting groove 27, and the flexible earpiece liner 30 abuts against the support section 24, the ear-fitting section 25, and the extension section 26.

[0046] Specifically, the support segment 24, the ear-attachment segment 25, and the extension segment 26 are smoothly connected sequentially from the outer ring end 21 to the inner ring end 22, resulting in a seamless and aesthetically pleasing design. The end of the support segment 24 furthest from the ear-attachment segment 25 forms the outer ring end 21, which connects with the connection area 12 of the earmuff 10, enabling the assembly of the flexible earmuff shell 20 and the earmuff 10. The end of the extension segment 26 furthest from the ear-attachment segment 25 forms the inner ring end 22, i.e., the free end, which is spaced apart from the receiving area 13 to allow communication between the main receiving cavity 40 and the secondary receiving cavity 50.

[0047] The supporting section 24, the ear-attaching section 25, and the extension section 26 together form a mounting groove 27, which provides installation space for the flexible earbud liner 30. The opening 23 between the outer ring end 21 and the inner ring end 22 serves as the opening of the mounting groove 27. The flexible earbud liner 30 is installed within the mounting groove 27, and the mounting groove 27 communicates with the secondary accommodating cavity 50 through the opening 23, demonstrating a reasonable design. The flexible earbud liner 30 abuts against the supporting section 24, the ear-attaching section 25, and the extension section 26, thereby providing multi-directional support for the flexible earbud liner 30 from the flexible earbud shell 20, enhancing the assembly stability of both.

[0048] Understandably, when a wearer wears the headphones 200, the auricle of the wearer's ear is housed within the total cavity 60. The ear-contact segment 25 contacts the area behind the wearer's ear, the inner ring end 22 of the extension segment 26 surrounds and supports the posterior auricular groove, and the support segment 24 supports and connects to the connection area 12 of the earcup 10, thus supporting the entire flexible earcup shell 20. Through the design of the support segment 24, the ear-contact segment 25, and the extension segment 26, they work together to ensure that the earcup structure 100 is stably worn on the wearer's ear. Furthermore, both the flexible earcup shell 20 and the flexible earcup liner 30 are flexible, enhancing wearing comfort.

[0049] In one embodiment, the support segment 24 protrudes in a first direction, the ear-attaching segment 25 protrudes in a second direction, and the extension segment 26 protrudes in a third direction. The first direction, the second direction, and the third direction are different from each other, and the first direction, the second direction, and the third direction are all different from the reference direction, which is the direction extending from any position of the flexible earpiece shell 20 to the earpiece cover 10.

[0050] For ease of representation, Figures 2 to 4 The first direction, the second direction, and the third direction are represented by arrows a, b, and c, respectively. Because the flexible earmuff shell 20 is a closed ring structure, the first direction is the direction outward from the ring, and the support section 24 protrudes outward. The second direction is the direction away from the earmuff 10, that is, the direction towards the front or left side of the earmuff 10. The ear-fitting section 25 protrudes towards the front or left side of the earmuff 10, and the extension section 26 protrudes both to the left and inward from the ring. The reference direction is the direction extending from any position of the flexible earbud shell 20 to the earbud cover 10. That is, the reference direction is the direction extending from any position of the flexible earbud shell 20 toward the earbud cover 10. The three sections of the flexible earbud shell 20, namely the support section 24, the ear-fitting section 25, and the extension section 26, are different from the reference direction. They do not protrude toward the earbud cover 10, which gives it a smooth and rounded shape. At the same time, it can provide sufficient installation space for the installation of the flexible earbud liner 30 and expand the volume of the total cavity 60, providing the wearer with ample ear wearing space and further improving wearing comfort.

[0051] In one embodiment, the support segment 24 is connected to one side of the connection area 12 along the first direction via the outer ring end 21, the ear segment 25 is at least partially disposed opposite the connection area 12 along the second direction, the extension segment 26 is located on one side of the connection area 12 along the third direction, and the extension segment 26 is disposed in the area of ​​the receiving area 13 near the connection area 12.

[0052] Specifically, the outer periphery of the connecting area 12 along the first direction is the outermost side of the connecting area 12, and the support section 24 is connected to the outer periphery of the connecting area 12 via the outer ring end 21. In the direction facing the front or left side of the ear cup 10, the ear-fitting section 25 is at least partially positioned opposite the connecting area 12, while the extension section 26 is located on the left inner side of the connecting area 12, and the extension section 26 is positioned corresponding to the area of ​​the receiving area 13 near the connecting area 12; that is, the extension section 26 is positioned corresponding to the outer periphery of the receiving area 13. This arrangement allows each segment of the flexible ear cup shell 20 to fit seamlessly with the ear cup 10, conforming to ergonomic design and thus improving wearing comfort.

[0053] In one embodiment, along the second direction, the distance between the receiving area 13 and the inner ring end 22 is greater than the distance between the receiving area 13 and the outer ring end 21. For example... Figures 2 to 6 As shown, the flexible earbud shell 20 is generally C-shaped, and along the lateral direction, the distance between the receiving area 13 and the inner ring end 22 is greater than the distance between the receiving area 13 and the outer ring end 21. That is, the inner ring end 22 of the flexible earbud shell 20 is farther away from the receiving area 13 than the outer ring end 21, making the flexible earbud shell 20 generally inclined relative to the earbud cover 10. C The "-shaped" structure results in a larger gap between the inner ring end 22 and the accommodating area 13, providing ample communication space for the main accommodating cavity 40 and the secondary accommodating cavity 50, and is more in line with ergonomic design.

[0054] In one embodiment, along the second direction, the straight length of the support segment 24 is 6mm to 25mm, and the straight length of the extension segment 26 is 5mm to 30mm; along the first direction, the straight length of the ear segment 25 is 5mm to 30mm, and the distance between the outer surface of the ear segment 25 and the inner ring end 22 along the second direction is 5mm to 60mm.

[0055] like Figure 4 As shown, along the second direction, i.e., the direction indicated by arrow b, the straight length of the support segment 24 is A, the straight length of the extension segment 26 is C, and the distance between the outer surface of the ear-fitting segment 25 and the inner ring end 22 along the second direction is L; along the first direction, i.e., the direction indicated by arrow a, the straight length of the ear-fitting segment 25 is B. Wherein, A = 6mm~25mm, B = 5mm~30mm, C = 5mm~30mm, and L = 5mm~60mm. This configuration limits the length dimensions of the support segment 24, the ear-fitting segment 25, and the extension segment 26, as well as the total width dimension of the flexible ear-cover shell 20 along the second direction, within a reasonable range, improving wearing comfort.

[0056] like Figures 2 to 6As shown, in one embodiment, the distance from the outer surface to the inner surface of the flexible earbud shell 20 is its thickness; the inner surface of the flexible earbud shell 20 is a curved surface that extends smoothly from the outer ring end 21 to the inner ring end 22, and the outer surface of the flexible earbud shell 20 is a curved surface that extends smoothly from the outer ring end 21 to the inner ring end 22; the thickness of the flexible earbud shell 20 gradually decreases along the direction from the outer ring end 21 to the inner ring end 22.

[0057] Understandably, the inner and outer surfaces of the flexible earpiece shell 20 refer to the distinction between the inner and outer surfaces of its surface, that is, the side facing the total accommodating cavity 60 is the inner surface, and the opposite side is the outer surface, rather than referring to the surface in the inner and outer directions of the ring.

[0058] The thickness of the flexible earbud shell 20 is the distance from its outer surface to its inner surface. In this embodiment, both the outer and inner surfaces of the flexible earbud shell 20 are made into smooth curved surfaces, allowing the thickness of the flexible earbud shell 20 to be gradually varied. Specifically, along the direction from the outer ring end 21 to the inner ring end 22, the thickness of the flexible earbud shell 20 gradually decreases. That is, the thicknesses of the support section 24, the ear-fitting section 25, and the extension section 26 each gradually decrease, and the thicknesses of the support section 24, the ear-fitting section 25, and the extension section 26 also gradually decrease. In this way, the flexible earbud shell 20 can better wrap around the wearer's ear, improving wearing comfort. Figure 3 As shown, the thicknesses of the support section 24, the ear section 25, and the extension section 26 are represented by T1, T2, and T3, respectively, where T1 > T2 > T3.

[0059] In terms of manufacturing process, the flexible earpiece shell 20 can be obtained by hot pressing sponges of different thicknesses. In different segments of the flexible earpiece shell 20, the thinner the areas, the thinner the sponge layer, and vice versa. For example, thinner areas can use one layer of sponge for hot pressing, thicker areas can use two layers, and even thicker areas can use three or more layers. To ensure that the thickness of the support segment 24, the ear-fitting segment 25, and the extension segment 26 does not have large thickness differences, the thickness of each segment needs to change uniformly and gradually. After hot pressing, the thickness of the different segments of the flexible shell can change uniformly and gradually.

[0060] In this embodiment, the hardness of the support segment 24, the ear-attaching segment 25, and the extension segment 26 can also be uniformly and gradually varied. Specifically, the hardness of the support segment 24 is less than that of the ear-attaching segment 25, and the hardness of the ear-attaching segment 25 is less than that of the extension segment 26. It should be noted that in this embodiment, the hardness of the support segment 24, the ear-attaching segment 25, and the extension segment 26 is affected by their thickness; the thinner the segment, the higher the hardness, and the thicker the segment, the lower the hardness. Specifically, the extension segment 26 has the highest hardness to improve its stability on the postauricular sulcus, followed by the ear-attaching segment 25, and the support segment 24 has the lowest hardness, thus allowing for greater deformation space to accommodate different ear sizes.

[0061] like Figure 8 As shown, in another embodiment, the distance from the outer surface to the inner surface of the flexible earpiece shell 20 is its thickness. The inner surface of the flexible earbud shell 20 is a curved surface that extends smoothly from the outer ring end 21 to the inner ring end 22; the outer surface of the flexible earbud shell 20 from the outer ring end 21 to the inner ring end 22 is composed of multiple non-curved surfaces connected in sequence, or the outer surface of the flexible earbud shell 20 from the outer ring end 21 to the inner ring end 22 is composed of several curved surfaces and several non-curved surfaces connected in sequence or alternately. Understandably, the inner and outer surfaces of the flexible earpiece shell 20 refer to the distinction between its inner and outer surfaces; that is, the side facing the total accommodating cavity 60 is the inner surface, and the opposite side is the outer surface, not the surface in the inner and outer directions of the ring. The thickness of the flexible earpiece shell 20 is the distance from its outer surface to its inner surface.

[0062] like Figure 8 As shown in (1), in one example, the inner surface of the flexible earbud shell 20 is a curved surface that extends smoothly from the outer ring end 21 to the inner ring end 22. The outer surface of the flexible earbud shell 20 from the outer ring end 21 to the inner ring end 22 is composed of several curved surfaces and several non-curved surfaces connected in sequence, such as one curved surface and four non-curved surfaces connected in sequence.

[0063] like Figure 8 As shown in (2), in another example, the inner surface of the flexible earpiece shell 20 is a curved surface that extends smoothly from the outer ring end 21 to the inner ring end 22. The outer surface of the flexible earpiece shell 20 from the outer ring end 21 to the inner ring end 22 is composed of several curved surfaces and several non-curved surfaces connected alternately, such as two curved surfaces and one non-curved surface connected alternately.

[0064] like Figure 8 As shown in (3), in another example, the inner surface of the flexible earpiece shell 20 is a curved surface that extends smoothly from the outer ring end 21 to the inner ring end 22, and the outer surface of the flexible earpiece shell 20 from the outer ring end 21 to the inner ring end 22 is composed of multiple non-curved surfaces connected in sequence. The non-curved surfaces can be planes or polygonal surfaces, etc.

[0065] By setting the outer surface of the flexible earbud shell 20 into different shapes, such as continuous curved surfaces, or a series of curved and non-curved surfaces connected in sequence, or a series of curved and non-curved surfaces connected alternately, the appearance of the flexible earbud shell 20 is diversified, allowing wearers to choose flexibly according to their personal needs.

[0066] In some embodiments, the thickness of the support segment 24 is greater than the thickness of the ear-attachment segment 25, and the thickness of the ear-attachment segment 25 is greater than the thickness of the extension segment 26. For example... Figure 8 As shown, the thicknesses of the support segment 24, the ear-mounted segment 25, and the extension segment 26 are represented by T1, T2, and T3, respectively. Where T1 > T2 > T3. In other embodiments, due to differences in appearance, the thickness and hardness of the support segment 24, the ear-mounted segment 25, and the extension segment 26 do not have a uniform gradual change, but this does not affect their overall ergonomic design.

[0067] In this embodiment, the hardness of the support segment 24 is less than that of the ear segment 25, and the hardness of the ear segment 25 is less than that of the extension segment 26. The effects of the thickness and hardness variations of the support segment 24, ear segment 25, and extension segment 26, as well as their manufacturing processes, are the same as in the above embodiments and will not be repeated here.

[0068] In one embodiment, the distance from the outer surface to the inner surface of the flexible earpiece shell 20 is its thickness; the thickness of the support section 24 is 3mm to 20mm, the thickness of the ear-fitting section 25 is 1.5mm to 10mm, and the thickness of the extension section 26 is 1mm to 4mm. With this configuration, the thickness dimensions of the support section 24, the ear-fitting section 25, and the extension section 26 can be limited within a reasonable range, thereby improving wearing comfort while ensuring the realization of the manufacturing process.

[0069] The earcup structure 100 of the present invention's over-ear headphones 200 maximizes wearing comfort by using a multi-segment structure with gradually varying thickness and hardness in the flexible earcup shell 20 along the direction from the outer ring end 21 to the inner ring end 22. Similarly, in order to cooperate with the flexible earcup liner 30, in some embodiments, the flexible earcup liner 30 may also refer to the multi-segment structure of the flexible earcup shell 20, dividing it into the same number of segments as the flexible earcup shell 20 along the direction from the outer ring end 21 to the inner ring end 22.

[0070] Specifically, such as Figure 5As shown, the flexible ear cup liner 30 is divided into a first liner section 37 that cooperates with the support section 24, a second liner section 38 that cooperates with the ear-fitting section 25, and a third liner section 39 that cooperates with the extension section 26 along the direction from the outer ring end 21 to the inner ring end 22. The thickness and hardness of the first liner section 37, the second liner section 38, and the third liner section 39 can also adopt a gradual stepped design. For example, the thickness of the first liner section 37, the second liner section 38, and the third liner section 39 gradually decreases, and the hardness gradually increases, in order to maximize the wearing comfort.

[0071] In one embodiment, the end of the flexible earbud liner 30 corresponding to the outer ring end 21 is the first end 31, and the end of the flexible earbud liner 30 corresponding to the inner ring end 22 is the second end 32; wherein, the first end 31 extends into an opening 23 in the direction of the connecting area 12 and abuts against the connecting area 12, and the second end 32 is located inside the flexible earbud shell 20 and is disposed close to the opening 23.

[0072] like Figure 2 As shown, the flexible earbud liner 30 and the outer ring end 21 each extend an opening 23 towards the connecting area 12 and abut against it. Specifically, the support section 24 of the flexible earbud shell 20 is connected to the outer periphery of the connecting area 12 via the outer ring end 21, thus providing space for the flexible earbud liner 30 to abut against the connecting area 12, resulting in a reasonable structural design. The first end 31 of the flexible earbud liner 30 extends out with an opening 23 and abuts against the connecting area 12, which improves the assembly stability of the flexible earbud liner 30 and the earbud cover 10, and the extended opening 23 can abut against the outer edge of the wearer's ear, improving wearing comfort. The second end 32 of the flexible ear cup liner 30, corresponding to the inner ring end 22, is located in the mounting groove 27 and is set close to the opening 23. That is, the second end 32 of the flexible ear cup liner 30 does not protrude from the opening 23 and is recessed relative to the opening 23 to expand the space of the secondary cavity 50 and further improve wearing comfort.

[0073] In one embodiment, the outer surface of the flexible earbud liner 30 matches the shape of the inner surface of the flexible earbud shell 20 to ensure continuous fit with the inner surface of the flexible earbud shell 20, so that the two are seamlessly connected and easy to assemble; the inner surface of the flexible earbud liner 30 is an arc-shaped surface that protrudes towards its outer surface, and the arc-shaped surface is designed to match and fit the wearer's ear in order to increase the contact area with the wearer's ear and improve wearing comfort.

[0074] In one embodiment, the flexible ear cup liner 30 includes at least two breathable and sound-absorbing layers arranged sequentially from its inner surface to its outer surface, and the at least two breathable and sound-absorbing layers are provided with breathable and sound-absorbing structures 70. By configuring the flexible ear cup liner 30 as a multi-layer structure, and each layer being provided with a breathable and sound-absorbing structure 70, not only is the breathability of the flexible ear cup liner 30 increased, but the reflection or leakage of headphone sound waves is further reduced, thereby improving the acoustic performance of the headphones 200.

[0075] In one embodiment, the flexible earpiece liner 30 includes four breathable and sound-absorbing layers arranged sequentially from its inner surface to its outer surface. Along the direction from the inner surface to the outer surface of the flexible earpiece liner 30, the four breathable and sound-absorbing layers are a textured layer 33, a support layer 34, a transition layer 35, and an abutment layer 36. The textured layer 33 has a sound-absorbing texture 331 and is a breathable layer. The support layer 34, the transition layer 35, and the abutment layer 36 are all provided with multiple breathable micropores. The sound-absorbing texture 331, the breathable layer, and the breathable micropores form a breathable and sound-absorbing structure 70.

[0076] like Figure 6 As shown, the flexible earpiece liner 30 has four breathable and sound-absorbing layers arranged sequentially from its inner surface to its outer surface, i.e., from the inside to the outside: a textured layer 33, a support layer 34, a transition layer 35, and an abutment layer 36. The breathable and sound-absorbing layer features a sound-absorbing texture 331, which is similar to an acoustic anechoic wall structure. An acoustic anechoic wall structure can block the propagation of sound waves, delaying or attenuating sound waves through the vibration transmission of the solid medium. In this embodiment, by setting the sound-absorbing texture 331 on the breathable and sound-absorbing layer, the propagation of airborne sound is reduced through the physical blocking effect of the sound-absorbing texture 331.

[0077] Furthermore, the textured layer 33 is a breathable layer, which can be made of breathable material or have multiple breathable micropores. It can be 3D printed using porous or textured materials to absorb sound wave energy. By reducing sound wave reflection or leakage through the material's pores and texture shape, it improves the acoustic performance of the headphones 200. The support layer 34, transition layer 35, and abutment layer 36 all have multiple breathable micropores and can all be 3D printed using porous materials. These not only provide breathability and improve wearing comfort but also further reduce sound wave reflection, thereby improving the acoustic performance of the headphones 200.

[0078] The support layer 34 supports the texture layer 33, while the transition layer 35 acts as a transition layer. The inner and outer sides of the transition layer 35 connect to the support layer 34 and the abutment layer 36, respectively. The abutment layer 36 abuts against the inner surface of the flexible earbud shell 20, thus assembling the flexible earbud liner 30 with the flexible earbud shell 20. The texture layer 33, support layer 34, transition layer 35, and abutment layer 36 can be fixed together by adhesive bonding. Any two layers can be bonded together using hot melt adhesive film, yellow glue, or double-sided tape. The outer surface of the abutment layer 36 can also be bonded to the inner surface of the flexible earbud shell 20 by adhesive bonding, making assembly simple, convenient, and easy.

[0079] In one example, such as Figure 9 As shown in (4), the sound-absorbing texture 331 consists of multiple spaced convex hull structures 331a, each convex hull structure 331a protruding from the texture layer 33 toward the secondary accommodating cavity 50. It can be understood that the multiple convex hull structures 331a can be specifically arranged in an array on the texture layer 33, with each convex hull protruding from the texture layer 33 toward the secondary accommodating cavity 50, that is, protruding from the inside out, in order to reduce sound wave reflection or leakage and improve the acoustic effect of the headphones 200.

[0080] In another example, such as Figure 9 As shown in (5), the sound-absorbing texture 331 consists of multiple spaced honeycomb structures 331b. It can be understood that the multiple honeycomb structures 331b can be arrayed on the texture layer 33 to reduce sound wave reflection or leakage through the sound-absorbing effect of the honeycomb structures 331b, thereby improving the acoustic effect of the headphones 200.

[0081] In yet another example, such as Figure 9 As shown in (6), the sound-absorbing texture 331 is an annular grille 331c arranged sequentially from the first end 31 to the second end 32. Each annular grille 331c is an annular closed grille extending circumferentially along the texture layer 33, so as to reduce sound wave reflection or leakage through the sound absorption effect of multiple annular grilles 331c and improve the acoustic effect of the headphones 200.

[0082] In yet another example, such as Figure 9 As shown in (7), the sound-absorbing texture 331 consists of multiple strip grids 331d arranged sequentially along the circumference of the texture layer 33. Each strip grid 331d extends from the first end 31 to the second end 32 to reduce sound wave reflection or leakage through the sound absorption effect of multiple strip grids 331d, thereby improving the acoustic effect of the headphone 200.

[0083] In other instances, such as Figure 9As shown in (8), the sound-absorbing texture 331 consists of multiple sound-absorbing channels disposed on the side of the texture layer 33 facing the secondary cavity 50. The multiple sound-absorbing channels are arranged sequentially along the circumference of the texture layer 33, and each sound-absorbing channel includes multiple streamlined sound-absorbing channels 331e. It can be understood that the multiple sound-absorbing channels can be arranged sequentially along the circumference of the texture layer 33 on the inner side of the texture layer 33. Since each sound-absorbing channel includes multiple streamlined sound-absorbing channels 331e, the sound absorption effect of the sound-absorbing channels 331e is used to reduce sound wave reflection or leakage and improve the acoustic effect of the headphones 200.

[0084] In the earcup structure 100 of the over-ear headphones 200 of the present invention, the sound-absorbing texture 331 of the texture layer 33 of the flexible earcup liner 30 can adopt styles including but not limited to the above-mentioned convex bulge structure 331a, honeycomb structure 331b, annular closed grid, strip grid 331d and sound-absorbing channel 331e, which are flexible and diverse, and the texture structure is beautiful and unique, which can improve the user experience.

[0085] In one embodiment, the distance from the outer surface to the inner surface of each breathable sound-absorbing layer is its thickness; wherein, the thickness of the transition layer 35 is greater than the thickness of the support layer 34, the thickness of the support layer 34 is the same as or substantially the same as the thickness of the abutment layer 36, and the thickness of the transition layer 35 is twice or nearly twice the thickness of the texture layer 33.

[0086] The hardness of the transition layer 35 is less than that of the support layer 34. The hardness of the support layer 34 is the same as or basically the same as that of the abutment layer 36. The hardness of the transition layer 35 is half or close to half of the hardness of the texture layer 33.

[0087] The hardness of the texture layer 33, support layer 34, transition layer 35, and abutment layer 36 is affected by their thickness; thinner areas have higher hardness, and thicker areas have lower hardness. The transition layer 35 is relatively thick and has low hardness, making it more flexible. This improves its sound absorption and provides greater deformation space, enhancing wearing comfort. The support layer 34 and abutment layer 36 have the same or nearly the same thickness and hardness, both less than and greater than the transition layer 35. This ensures the support layer 34 provides good support for the texture layer 33 and facilitates adhesion between the abutment layer 36 and the inner surface of the flexible earpiece shell 20. Furthermore, the transition layer 35 is twice or nearly twice the thickness of the texture layer 33, and half or nearly half the thickness of the texture layer 33. In other words, the texture layer 33 is relatively thin and has high hardness, making it the thinnest and hardest of the four breathable and sound-absorbing layers, facilitating 3D printing. Understandably, the thickness of the support layer 34 and the abutment layer 36 are basically the same, and their hardness is basically the same, meaning that their thickness and hardness are infinitely close or only slightly different.

[0088] In the present invention, the thickness and hardness of the textured layer 33, support layer 34, transition layer 35 and abutment layer 36 in the flexible ear cup liner 30 are differentiated to ensure good cooperation between the four layers and maximize the wearing comfort and acoustic effect.

[0089] In one embodiment, the textured layer 33 is made of a breathable material, or the textured layer 33 has a plurality of breathable micropores; the pore size of the breathable micropores in the support layer 34 is smaller than the pore size of the breathable micropores in the transition layer 35, and the pore size of the breathable micropores in the transition layer 35 is smaller than the pore size of the breathable micropores in the abutment layer 36; the distribution density of the breathable micropores in the support layer 34 is greater than the distribution density of the breathable micropores in the transition layer 35, and the distribution density of the breathable micropores in the transition layer 35 is greater than the distribution density of the breathable micropores in the abutment layer 36.

[0090] From the inside out, the pore size and density of the micropores in the support layer 34, transition layer 35, and abutment layer 36 gradually increase. The micropores in the support layer 34 are small and densely distributed, followed by the transition layer 35, and the micropores in the abutment layer 36 are large and sparsely distributed, thus presenting a gradual change from dense to sparse and from small to large. If the textured layer 33 also has multiple micropores, the relationship between the micropores in the four layers is also a gradual change from dense to sparse and from small to large. This gradual change acts like an "acoustic slope," achieving a smooth transition of acoustic impedance through changes in pore size and density. It reduces sound wave reflection on the surface, allowing more sound energy to enter the material; it also allows sound waves of different frequencies to be consumed layer by layer, ultimately achieving high-efficiency sound absorption over a wide frequency range and improving the acoustic performance of the headphones 200.

[0091] Specifically, in one embodiment, the pore size of the breathable micropores in the support layer 34 is 0.02mm~0.025mm, and the spacing between any two adjacent breathable micropores is 0.01mm~0.02mm; the pore size of the breathable micropores in the transition layer 35 is 0.025mm~0.035mm, and the spacing between any two adjacent breathable micropores is 0.02mm~0.03mm. The pore size of the breathable micropores in the abutment layer 36 is 0.05mm~0.1mm, and the spacing between any two adjacent breathable micropores is 0.04mm~0.05mm. By limiting the pore size and spacing of the breathable micropores on the support layer 34, transition layer 35, and abutment layer 36 to a reasonable range, the acoustic performance of the headphones 200 is improved while facilitating manufacturing processes.

[0092] In one embodiment, such as Figures 1 to 6As shown, the outer surface of the flexible earbud shell 20 is also covered with a flexible covering layer 80, which completely covers the outer surface of the flexible earbud shell 20, and the inner edge and outer edge of the flexible covering layer 80 are fixed to the inner ring end 22 and the outer ring end 21, respectively.

[0093] Specifically, the flexible covering layer 80 can be made of fabric or leather and completely covers the outer surface of the flexible earbud shell 20 to improve the comfort of contact with the wearer's ear during wear. The inner edge of the flexible covering layer 80 is fixed to the inner ring end 22 of the flexible earbud shell 20, and the outer edge of the flexible earbud is fixed to the outer ring end 21 of the flexible earbud shell 20 to achieve a stable assembly between the flexible covering layer 80 and the flexible earbud shell 20, resulting in a reasonable structural design.

[0094] In one embodiment, the outer edge of the flexible covering layer 80 forms an outer extension 81 that covers the end of the outer ring end 21 and continues to extend toward the secondary accommodating cavity 50. An annular metal gasket 82 is arranged circumferentially on the outer extension 81. A magnet 121 is provided in the connecting area 12. The magnet 121 attracts the metal gasket 82 to install the outer extension 81 onto the connecting area.

[0095] like Figures 2 to 6 As shown, the outer edge of the flexible covering layer 80 is extended by a certain length to form an outer extension 81. The outer extension 81 covers the end of the outer ring end 21 and continues to extend towards the secondary accommodating cavity 50. That is, the flexible covering layer 80 not only covers the entire outer surface of the flexible ear cup shell 20, but also covers the entire outer ring end 21. On the one hand, it improves the comprehensiveness of the coverage. On the other hand, the annular metal gasket 82 of the outer extension 81 can be attracted to the magnet 121 of the connecting area 12, thereby installing the outer extension 81 on the connecting part and improving the assembly convenience between the flexible ear cup shell 20, the flexible covering layer 80 and the ear cup cover 10.

[0096] In one embodiment, the inner edge of the flexible covering layer 80 covers the end of the inner ring end 22 and continues to extend toward the inner surface of the flexible earpiece shell 20 until it connects with the flexible earpiece liner 30.

[0097] The inner edge of the flexible covering layer 80 is also extended by a certain length. The extended portion can cover the end of the inner ring end 22 and continue to extend towards the inner surface to connect with the flexible ear cup liner 30. That is, the flexible covering layer 80 not only covers the entire outer surface of the flexible ear cup shell 20, but also covers the entire inner ring end 22. On the one hand, it improves the comprehensiveness of the coverage. On the other hand, it extends to connect with the flexible ear cup liner 30, specifically to connect with the second end 32 of the flexible ear cup liner 30, thereby improving the assembly convenience of the flexible ear cup shell 20, the flexible covering layer 80, and the flexible ear cup liner 30.

[0098] In one embodiment, the receiving area 13 is recessed from the surface where the connecting area 12 connects to the outer ring end 21 towards the mounting area 11. For example... Figure 7 As shown, the accommodating area 13 is recessed to the right or to the front of the ear cover 10 to increase the volume of the main accommodating cavity 40 and the secondary accommodating cavity 50, thereby expanding the volume of the total accommodating cavity 60 and improving wearing comfort.

[0099] like Figure 1 As shown, the present invention also proposes a headset 200, which includes a headband 201 and two earcup structures 100 as described above. The mounting areas 11 of the two earcup structures 100 are respectively connected to both ends of the headband 201. Specifically, the mounting areas 11 of the two earcup structures 100 are respectively connected to the left and right ends of the opening of the headband 201, and the left and right earcup structures 100 are mirror images of each other.

[0100] The specific structure and usage of the earcup structure 100 of the over-ear headphones 200 are as described in the above embodiments. Since this electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0101] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent structural transformations made based on the inventive concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. An earcup structure for a pair of headphones, characterized in that, The ear-shaped structure includes: The earcup has a mounting area on one side for connecting to the headband of the headphones. The side of the earcup opposite to the mounting area has a connecting area and a receiving area, with the connecting area surrounding the outer periphery of the receiving area. A flexible earbud shell is located on the side of the earbud cover away from the mounting area. The two ends of the flexible earbud shell are an inner ring end and an outer ring end surrounding the inner ring end. The flexible earbud shell extends continuously from the outer ring end to the inner ring end, forming an arc-shaped structure that bends away from the earbud cover. The outer ring end is connected to the connecting area, and the inner ring end is a free end that faces the receiving area and is spaced apart from the receiving area. The inner ring end and the receiving area together form a main receiving cavity, and there is an opening between the outer ring end and the inner ring end. A flexible ear cup liner is disposed on the side of the flexible ear cup shell facing the receiving area, and the flexible ear cup liner, the connecting area and the receiving area together form a secondary receiving cavity. The main receiving cavity and the secondary receiving cavity are connected to form a total receiving cavity for receiving the wearer's ear. The flexible ear cup liner is provided with a breathable sound-absorbing structure that can absorb sound waves.

2. The earcup structure of the headphones as described in claim 1, characterized in that, The flexible earpiece shell includes a support section, an ear-fitting section, and an extension section. The support section, the ear-fitting section, and the extension section are smoothly connected sequentially from the outer ring end to the inner ring end. The end of the support section away from the ear-fitting section forms the outer ring end, and the end of the extension section away from the ear-fitting section forms the inner ring end. The support section, the ear-fitting section, and the extension section together form a mounting groove. The opening forms the slot of the mounting groove, and the mounting groove communicates with the secondary accommodating cavity through the opening. The flexible earpiece liner is installed in the mounting groove, and the flexible earpiece liner abuts against the support section, the ear-fitting section, and the extension section.

3. The earcup structure of the headphones as described in claim 2, characterized in that, The supporting segment protrudes in a first direction, the ear-attaching segment protrudes in a second direction, and the extension segment protrudes in a third direction. The first direction, the second direction, and the third direction are different from each other, and the first direction, the second direction, and the third direction are all different from the reference direction, which is the direction extending from any position of the flexible earbud shell to the earbud cover.

4. The earcup structure of the headphones as described in claim 3, characterized in that, The support segment is connected to one side of the connection area along the first direction via the outer ring end. The ear segment is at least partially positioned opposite the connection area along the second direction. The extension segment is located on one side of the connection area along the third direction, and the extension segment is positioned corresponding to the area of ​​the receiving area close to the connection area. Along the second direction, the distance between the accommodating area and the inner ring end is greater than the distance between the accommodating area and the outer ring end.

5. The earcup structure of the headphones as described in claim 2, characterized in that, The distance from the outer surface to the inner surface of the flexible earpiece shell is its thickness; The inner surface of the flexible earbud shell is a curved surface that extends smoothly from the outer ring end to the inner ring end, and the outer surface of the flexible earbud shell is a curved surface that extends smoothly from the outer ring end to the inner ring end; the thickness of the flexible earbud shell gradually decreases along the direction from the outer ring end to the inner ring end. or, The inner surface of the flexible earpiece shell is a curved surface that extends smoothly from the outer ring end to the inner ring end; the outer surface of the flexible earpiece shell from the outer ring end to the inner ring end is formed by a plurality of non-curved surfaces connected in sequence, or the outer surface of the flexible earpiece shell from the outer ring end to the inner ring end is formed by a plurality of curved surfaces and a plurality of non-curved surfaces connected in sequence or alternately; the thickness of the support section is greater than the thickness of the ear-fitting section, and the thickness of the ear-fitting section is greater than the thickness of the extension section.

6. The earcup structure of the headphones as described in any one of claims 2 to 5, characterized in that, The end of the flexible earbud liner corresponding to the outer ring end is the first end, and the end of the flexible earbud liner corresponding to the inner ring end is the second end; wherein, the first end extends out of the opening in the direction of the connecting area and abuts against the connecting area, and the second end is located inside the flexible earbud shell and is positioned close to the opening. The flexible earpiece liner includes four breathable and sound-absorbing layers arranged sequentially from its inner surface to its outer surface. Along the direction from the inner surface to the outer surface of the flexible earpiece liner, the four breathable and sound-absorbing layers are a texture layer, a support layer, a transition layer, and abutment layer, respectively. The texture layer has a sound-absorbing texture and is a breathable layer. The support layer, the transition layer, and the abutment layer are all provided with multiple breathable micropores. The sound-absorbing texture, the breathable layer, and the breathable micropores form the breathable and sound-absorbing structure.

7. The earcup structure of the headphones as described in claim 6, characterized in that, The sound-absorbing texture is a plurality of spaced convex hull structures, each of which protrudes from the texture layer toward the sub-accommodating cavity; Alternatively, the sound-absorbing texture may be a honeycomb structure with multiple spaced intervals; Alternatively, the sound-absorbing texture may be a plurality of annular grilles arranged sequentially from the first end to the second end, and each annular grille structure may be an annular closed grille extending circumferentially along the texture layer. Alternatively, the sound-absorbing texture may be a plurality of strip grilles arranged sequentially along the circumference of the texture layer, with each strip grille extending from the first end to the second end; Alternatively, the sound-absorbing texture may be a plurality of sound-absorbing channels disposed on the side of the texture layer facing the secondary cavity, the plurality of sound-absorbing channels being arranged sequentially along the circumference of the texture layer, and each sound-absorbing channel group including multiple streamlined sound-absorbing channels.

8. The earcup structure of the headphones as described in claim 6, characterized in that, The distance from the outer surface to the inner surface of each of the breathable and sound-absorbing layers is its thickness; wherein, the thickness of the transition layer is greater than the thickness of the support layer, the thickness of the support layer is the same as or substantially the same as the thickness of the abutment layer, and the thickness of the transition layer is twice or nearly twice the thickness of the texture layer; And / or, the hardness of the transition layer is less than the hardness of the support layer, the hardness of the support layer is the same as or substantially the same as the hardness of the abutment layer, and the hardness of the transition layer is half or nearly half the hardness of the texture layer. And / or, the textured layer is made of a breathable material, or the textured layer has a plurality of breathable micropores; the pore size of the breathable micropores in the support layer is smaller than the pore size of the breathable micropores in the transition layer, and the pore size of the breathable micropores in the transition layer is smaller than the pore size of the breathable micropores in the abutment layer; the distribution density of the breathable micropores in the support layer is smaller than the distribution density of the breathable micropores in the transition layer, and the distribution density of the breathable micropores in the transition layer is smaller than the distribution density of the breathable micropores in the abutment layer.

9. The earcup structure of the headphones as described in any one of claims 1 to 5, characterized in that, The outer surface of the flexible earpiece shell is also covered with a flexible covering layer, which completely covers the outer surface of the flexible earpiece shell, and the inner edge and outer edge of the flexible covering layer are fixed to the inner ring end and the outer ring end, respectively. The outer edge of the flexible covering layer forms an outer extension that covers the end of the outer ring and continues to extend toward the secondary accommodating cavity. An annular metal gasket is arranged circumferentially on the outer extension. A magnet is provided in the connecting area. The magnet attracts the metal gasket to install the outer extension onto the connecting portion. And / or, the inner edge of the flexible covering layer covers the end of the inner ring and continues to extend toward the inner surface of the flexible earpiece shell until it connects with the flexible earpiece liner.

10. A type of over-ear headphone, characterized in that, The headphones include a headband and two earcup structures for headphones as described in any one of claims 1 to 9, wherein the mounting areas of the two earcup structures are respectively connected to both ends of the headband.

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