Ear muff and earphone

Abstract

The utility model discloses an ear sleeve and earphone relates to earphone technical field, wherein, ear sleeve includes ear sleeve main part, support piece and sealing sheet, ear sleeve main part is used for with earphone main part detachable connection, support piece is located in the inner chamber of ear sleeve main part, sealing sheet is located in the one side of support piece back to ear sleeve main part, and sealing sheet is used for with earphone main part sealed abutment.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, and in particular to an ear cover and headphones. Background Technology

[0002] The acoustic performance and wearing comfort of over-ear headphones largely depend on the design of the earcups. Earcups not only come into direct contact with the user's skin, but their seal plays a decisive role in the headphones' acoustic performance, especially low-frequency response and the effectiveness of active noise cancellation. Currently, the mainstream methods for securing earcups include: using earcup skirts to fit into slots within the headphone body, wrapping the earcup skirts around the headphone body, or using double-sided tape to directly attach the earcups to the headphone body. However, slot or wrap-around methods struggle to guarantee a consistent seal, easily leading to low-frequency sound wave leakage, while double-sided tape makes the earcups non-removable, non-replaceable, and non-cleanable, resulting in a poor user experience. Utility Model Content

[0003] The ear cover proposed in this utility model includes:

[0004] Ear tip body, the ear tip body being detachably connected to the headphone body;

[0005] A support piece is disposed within the inner cavity of the ear cover body;

[0006] A sealing sheet is provided on the side of the support sheet facing away from the earpiece body, and the sealing sheet is used to seal against the earphone body.

[0007] This utility model also proposes an earphone, comprising:

[0008] Headphone body;

[0009] As described above, the ear cover is fitted onto the headphone body, and the sealing sheet is in sealing contact with the headphone body. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0011] Figure 1 A schematic diagram of the structure of an embodiment of the ear cover provided by this utility model;

[0012] Figure 2 A cross-sectional view of an embodiment of the ear cover provided by this utility model;

[0013] Figure 3 A cross-sectional view of an embodiment of the earcups and the assembly of the headphone body (partial structure);

[0014] Figure 4 A schematic diagram of another embodiment of the ear cover provided by this utility model;

[0015] Figure 5 A cross-sectional view of yet another embodiment of the ear cover provided by this utility model;

[0016] Figure 6 A cross-sectional view of another embodiment of the earcup and the assembly of the headphone body (partial structure).

[0017] Explanation of icon numbers:

[0018] 1000. Earclip; 1. Outer skin; 101. Sound outlet; 2. Circular sponge; 3. Support plate; 4. Sealing plate; 5. Upper skin; 6. Lower skin; 7. Mesh fabric; 8. Connecting plate; 9. Mesh cover; 10. Earphone body; 11. Sealing rib.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that if the embodiments of this utility model 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 specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model 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 use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, 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. When 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 utility model.

[0023] This utility model proposes an ear cover 1000.

[0024] Please see Figures 1 to 6 In one embodiment of the present invention, the ear cover 1000 includes an ear cover body, a support piece 3, and a sealing piece 4; the ear cover body is detachably connected to the headphone body 10; the support piece 3 is disposed in the inner cavity of the ear cover body; the sealing piece 4 is disposed on the side of the support piece 3 facing away from the ear cover body, and the sealing piece 4 is used to seal against the headphone body 10.

[0025] The ear tip can be fitted into a slot in the headphone body 10, or it can be set to wrap around the headphone body 10.

[0026] The support piece 3 is a rigid die-cut piece, and its material can be polyethylene terephthalate (PET), polycarbonate (PC), or acrylonitrile-butadiene-styrene copolymer (ABS). Through precise die-cutting, the support piece 3 has a highly consistent size and shape, and its rigidity provides stable skeletal support for the entire earpiece 1000.

[0027] The sealing sheet 4 is made of a soft, elastic material, such as polyurethane foam (POLO foam), ethylene-vinyl acetate copolymer foam (EVA), or silicone rubber. This sealing sheet 4 is used to seal against the surface of the earphone body 10. Specifically, the surface of the earphone body 10 has a raised sealing rib 11. When the earbud body is connected to the earphone body 10, the sealing sheet 4 is compressed against the sealing rib 11, generating a certain amount of pre-compression, thereby achieving a sealing effect.

[0028] In the technical solution of this utility model, the ear cup body and the headphone body 10 are detachably connected for easy use; at the same time, under the support of the support plate 3, the sealing plate 4 can seal against the headphone body 10, ensuring the consistency of the acoustic cavity seal.

[0029] Specifically, in one embodiment of this utility model, please refer to... Figure 1 , Figure 2 and Figure 3 The earpiece body includes an outer skin 1 and an annular sponge 2. The outer skin 1 forms a receiving cavity, and the annular sponge 2 is placed inside the receiving cavity. The support piece 3 and the sealing piece 4 are both annular structures. The support piece 3 is connected to the annular sponge 2, and the sealing piece 4 is located on the side of the support piece 3 facing away from the annular sponge 2. The outer skin 1 is made of high-quality imitation protein leather, possessing good softness, elasticity, and durability. The inner part of the outer skin 1 forms a bowl-shaped or cup-shaped receiving cavity, within which the annular sponge 2 is placed, forming a flat earpiece 1000 that indirectly contacts the user's ear or head through the outer skin 1. The support piece 3 is an annular structure, its outer contour matching the shape of the bottom surface of the annular sponge 2. This annular support piece 3 is fixedly connected to the bottom surface of the annular sponge 2 by adhesive or other means. The annular structure design provides necessary support rigidity while perfectly avoiding the sound conduction path, ensuring that sound waves can pass unobstructed through its central cavity. The sealing piece 4 is also an annular structure, located on the side of the annular support piece 3 facing away from the annular sponge 2. The annular sealing plate 4 and the annular support plate 3 are aligned vertically and bonded together with adhesive. The sealing plate 4 is used to seal against the sealing rib 11 structure of the earphone body 10. Under the pre-pressure of assembly, it undergoes elastic deformation, filling microscopic gaps and forming a reliable acoustic sealing ring. The stacked structure of the annular sponge 2, the annular support plate 3, and the annular sealing plate 4 achieves both acoustic and structural functions. The support plate 3 provides stable mechanical support, ensuring uniform pressure on the sealing plate 4; the sealing plate 4 is responsible for achieving acoustic sealing; and their shared hollow channel is dedicated to sound transmission, collectively achieving excellent overall performance.

[0030] Furthermore, in one embodiment of this utility model, please refer to... Figure 1 and Figure 2The outer skin 1 has multiple sound outlet holes 101, which are positioned corresponding to the hollow positions of the annular sponge 2. This means that after sound waves are emitted from the speaker unit, they will pass sequentially through the hollow cavity of the annular sponge 2, the sound outlet holes 101 on the outer skin 1, and finally reach the ear. The sound outlet holes 101 are the final exit for sound wave conduction, and their design ensures that sound can be transmitted efficiently and without loss. In other embodiments, a mesh 9 is also provided inside the receiving cavity. The mesh 9 is made of textile material or polymer fine mesh and is fixed to the inner wall of the outer skin 1 by adhesive or hot pressing, completely covering the multiple sound outlet holes 101 on the outer skin 1, as if a filter is covering the inside of the sound outlet holes 101. The mesh 9 primarily acts as a highly efficient physical barrier. Its dense mesh structure effectively blocks small foreign objects such as dust, dander, and hair from the external environment from entering the headphone cavity through the sound outlet 101. At the same time, the mesh of the mesh 9 creates a certain resistance to the passing sound waves. This resistance can effectively suppress the resonance peaks of specific frequencies (usually mid-high frequencies) and smooth the frequency response curve. By selecting different mesh counts (pore densities), thicknesses, and materials of the mesh 9, the final tone of the headphones can be precisely fine-tuned.

[0031] Specifically, in one embodiment of this utility model, please refer to Figure 4. Figure 5 and Figure 6The earpiece body comprises an upper skin 5, a lower skin 6, and an annular sponge 2. The upper skin 5 and lower skin 6 enclose an annular cavity, within which the annular sponge 2 is located. The support piece 3 and sealing piece 4 are both annular structures. The support piece 3 is connected to the lower skin 6, and the sealing piece 4 is located on the side of the support piece 3 facing away from the annular sponge 2. The upper skin 5 and lower skin 6 are typically made of flexible materials such as leather or protein leather. The upper skin 5 and lower skin 6 are connected at their edges by hot pressing and / or sewing, together forming an annular cavity. Here, "annular cavity" specifically refers to a cross-section that is annular; the overall shape can be circular or racetrack-shaped (elliptical) depending on design requirements. The annular sponge 2 is located within this annular cavity and is bonded to the lower skin 6, forming a racetrack-shaped earpiece 1000. The function of the annular sponge 2 is to provide cushioning against the user's ear or head, ensuring wearing comfort. The support piece 3 is a ring-shaped structure made of die-cut rigid plastic sheet, such as polyethylene terephthalate (PET), polycarbonate (PC), or acrylonitrile-butadiene-styrene copolymer (ABS). This ring-shaped support piece 3 is connected to the inner bottom of the lower skin 6. The connection method can be direct hot-pressing or adhesive bonding. The core function of the support piece 3 is to provide a solid planar support for the bottom of the entire earpiece 1000, preventing it from collapsing or twisting during use, thus ensuring its shape stability. The sealing piece 4 is also a ring-shaped structure, located on the side of the support piece 3 facing away from the ring-shaped sponge 2. The sealing piece 4 is made of a soft sealing material such as polyurethane foam (POLO foam), ethylene-vinyl acetate copolymer foam (EVA), or silicone rubber, and is bonded to the support piece 3 by adhesive. Its function is to make compression contact with the ring-shaped sealing rib 11 on the earphone body 10, forming a reliable acoustic sealing barrier. The stacked structure of the annular sponge 2, the annular support plate 3, and the annular sealing plate 4 realizes both acoustic and structural functions. The support plate 3 is responsible for providing stable mechanical support and ensuring that the sealing plate 4 is subjected to uniform pressure. The sealing plate 4 is responsible for achieving acoustic sealing. Their shared hollow channel is dedicated to sound transmission, and together they achieve excellent comprehensive performance.

[0032] Furthermore, in one embodiment of this utility model, please refer to... Figure 5 The earcups 1000 also include a mesh fabric 7, which is positioned between the support plate 3 and the sealing plate 4. The mesh fabric 7 has a porous structure; its fine mesh resists airflow, effectively regulating sound wave propagation. Thus, by selecting mesh fabrics 7 with different densities and materials, the frequency response curve of the headphones can be precisely fine-tuned, suppressing unnecessary resonance peaks and resulting in a smoother, more natural sound. Furthermore, the mesh fabric 7 effectively prevents small foreign objects such as dust, dander, and hair from entering the headphones.

[0033] For easy connection of the ear tips 1000 and the headphone body 10, please refer to [link / reference]. Figure 2 , Figure 3 , Figure 5 and Figure 6 In one embodiment of this utility model, the earcup 1000 further includes a connecting piece 8, which is disposed at one end of the earcup body and is used for detachable connection with the headphone body 10. The connecting piece 8 is a skirt structure made of thermoplastic polyurethane (TPU). For a flat earcup 1000, the connecting piece 8 is connected to the outer skin 1 by heat pressing; for a racetrack-shaped earcup 1000, the connecting piece 8 is connected to the bottom of the upper skin 5 by heat pressing. The headphone body is provided with a corresponding annular groove. During installation, the detachable connection is achieved by stretching the connecting piece 8 and fitting it onto the groove of the headphone body 10. In other embodiments, the connecting piece 8 can be a relatively rigid annular clamping member, combined with the flexible outer skin 1 of the earcup 1000; it is clamped to the corresponding flange structure on the headphone body 10 by means of an inwardly folded lip, and fixed by interference fit. Alternatively, the connecting piece 8 can be made of magnetic material, and correspondingly, magnetic materials or magnets are arranged at the position where the earphone body 10 connects with the ear tip 1000, so that convenient installation and removal can be achieved through magnetic adsorption.

[0034] Please see Figure 3 and Figure 6 This utility model also proposes an earphone, which includes an earphone body 10 and an ear tip 1000. The ear tip 1000 is fitted onto the earphone body 10, and the sealing sheet 4 is in sealing contact with the earphone body 10. The specific structure of the ear tip 1000 is as described in the above embodiments. Since this earphone 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, which will not be described in detail here. Among them, a raised sealing rib 11 is provided on the surface of the earphone body 10. When the ear tip body is connected to the earphone body 10, the sealing sheet 4 will be squeezed against the sealing rib 11, generating a certain pre-compression amount, thereby achieving a sealing effect. A slot is provided on the periphery of the earphone body 10, and the connecting piece 8 of the ear tip body is engaged in the slot to realize the detachable connection between the earphone body 10 and the ear tip body.

[0035] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An ear cover, characterized in that, include: Ear tip body, the ear tip body being detachably connected to the headphone body; A support piece, wherein the support piece is disposed in the inner cavity of the ear cover body; A sealing sheet is provided on the side of the support sheet facing away from the earpiece body, and the sealing sheet is used to seal against the earphone body.

2. The ear cover as described in claim 1, characterized in that, The ear cover body includes an outer skin and an annular sponge, the outer skin forming a receiving cavity, and the annular sponge being disposed within the receiving cavity; Both the support plate and the sealing plate are annular structures. The support plate is connected to the annular sponge, and the sealing plate is located on the side of the support plate facing away from the annular sponge.

3. The ear cover as described in claim 2, characterized in that, The outer skin has multiple sound holes, which are arranged corresponding to the hollow positions of the annular sponge.

4. The ear cover as described in claim 1, characterized in that, The ear cover body includes an upper skin, a lower skin, and an annular sponge. The upper skin and the lower skin enclose an annular cavity, and the annular sponge is disposed within the annular cavity. Both the support sheet and the sealing sheet are annular structures. The support sheet is connected to the lower skin, and the sealing sheet is located on the side of the support sheet facing away from the annular sponge.

5. The ear cover as described in claim 4, characterized in that, The ear cover also includes a mesh fabric, which is disposed between the support piece and the sealing piece.

6. The ear cover as described in claim 1, characterized in that, The support piece is bonded to the ear cover body, and the sealing piece is bonded to the support piece.

7. The ear cover as described in any one of claims 1 to 6, characterized in that, The earcup also includes a connecting piece, which is located at one end of the earcup body and is used for detachable connection with the earphone body.

8. The ear cover as described in any one of claims 1 to 6, characterized in that, The support sheet is made of one of the following materials: polyethylene terephthalate, polycarbonate, and acrylonitrile-butadiene-styrene copolymer.

9. The ear cover as described in any one of claims 1 to 6, characterized in that, The sealing sheet is made of one of the following materials: polyurethane foam, ethylene-vinyl acetate copolymer foam, and silicone rubber.

10. An earphone, characterized in that, include: Headphone body; The ear cover as described in any one of claims 1 to 9, wherein the ear cover is fitted onto the headphone body, and the sealing sheet is in sealing contact with the headphone body.

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