earphone

Abstract

The application discloses an earphone, which comprises a shell, a switch assembly, a decorative shell, a switch support and a filling piece. The shell is provided with an inner cavity and a mounting port communicating with the inner cavity. The decorative shell is arranged on the shell and forms a containing cavity together with the shell. The switch assembly is mounted at the mounting port and connected with the shell. The switch support is located in the containing cavity and connected with the shell. One side of the switch support is in abutment with the switch assembly, and the other side is spaced apart from the decorative shell to form a gap. The filling piece fills the gap between the decorative shell and the switch support. When the decorative shell is pressed, the switch support is driven to move towards the switch assembly to trigger the switch assembly. The technical scheme can avoid the pressing virtual position between the decorative shell and the switch assembly and improve the key operation feeling.

Description

Technical Field

[0001] This application relates to the field of headphone technology, and in particular to a type of headphone. Background Technology

[0002] With the rapid development of electronic devices, including speakers and headphones, buttons are usually set on the casing of electronic devices. Users can switch between various functions by operating the buttons. For example, for headphones, the headphones include a pressable shell and a switch component set inside the shell. The switch component is triggered by the pressing of the shell to achieve functions such as volume adjustment, start playback, pause playback or skip tracks.

[0003] In related technologies, there may be a certain gap between the earphone shell and the switch component due to installation errors, resulting in a lack of feedback in the initial press. Users need to press to a certain depth to trigger the button, which leads to a poor pressing feel. Utility Model Content

[0004] This application provides an earphone that can avoid the pressing misalignment between the decorative shell and the switch assembly, thereby improving the button operation feel.

[0005] This application provides an earphone, which includes a housing, a switch assembly, a decorative shell, a switch bracket, and a filler. The housing has an inner cavity and a mounting opening communicating with the inner cavity. The decorative shell covers the housing and surrounds the housing to form a receiving cavity. The switch assembly is installed at the mounting opening and is connected to the housing. The switch bracket is located in the receiving cavity and is connected to the housing. One side of the switch bracket abuts against the switch assembly, and the other side is spaced apart from the decorative shell to form a gap. The filler fills the gap between the decorative shell and the switch bracket. When the decorative shell is pressed, it can drive the switch bracket to move toward the switch assembly to trigger the switch assembly.

[0006] In the earphones based on this embodiment, the switch bracket is connected to the housing. One side of the switch bracket abuts against the switch assembly, and the other side has a gap with the decorative shell. A filler is placed in the gap between the decorative shell and the switch bracket. Regardless of changes in component tolerances, the filler can adapt its thickness or compensate for deformation to fill the gap, achieving a better transmission connection between the decorative shell and the switch bracket. The filler is positioned in the gap and abuts against both the decorative shell and the switch bracket, creating a gapless force transmission path between the decorative shell and the switch assembly. When the decorative shell is compressed, it can move, driving the filler and the switch bracket towards the switch assembly to trigger the switch assembly, thereby switching different functions of the earphones. When the user presses the decorative shell, the pressure is directly transmitted through the shell to the filler. Because the filler is designed to abut against both the decorative shell and the switch bracket, it avoids any play caused by gaps between them. The filler linearly transmits the pressure to the switch bracket, thereby triggering the switch assembly. Users can clearly perceive the trigger feedback as soon as the press begins, avoiding the uncertainty of no response with light presses or a stiff feel with heavy presses. This instant feedback allows users to determine whether the operation was successful, improving efficiency.

[0007] The switch bracket maintains its posture stability through its connection with the housing. The filler is located within the gap and abuts against both the decorative housing and the switch bracket, forming a surface contact force transmission interface. Regardless of whether the user presses the center or the edge of the decorative housing, the decorative housing can evenly distribute the pressing force to the entire area of ​​the filler. The filler then transmits the force to the switch bracket, ensuring that the switch bracket is subjected to balanced force. There will be no trigger delay or local jamming due to different pressing positions. This ensures that the switch bracket always maintains its direction of movement toward the switch component, pushing the switch component to trigger and achieving a consistent pressing feel. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the headphone structure in one embodiment of this application; Figure 2 for Figure 1 An exploded view of one embodiment of the headphones is shown in the figure; Figure 3 for Figure 2 The diagram shows a structural schematic of one embodiment of the switch bracket; Figure 4 for Figure 2 The diagram shown is a structural schematic of the headphones after the decorative shell has been removed. Figure 5 for Figure 1 An exploded view of another embodiment of the headphones is shown in the figure; Figure 6 for Figure 5 A schematic diagram of another embodiment of the switch bracket is shown in the figure.

[0010] Explanation of icon numbers: 100. Earphone; 10. Housing; 101. Sound output part; 102. Main body; 11. Mounting port; 12. Mounting slot; 121. First slot; 122. Second slot; 1221. Connecting slot; 1222. Limiting slot; 13. Limiting protrusion; 14. Receiving slot; 20. Switch assembly; 30. Decorative shell; 40. Switch bracket; 41. Cantilever; 411. Arm body; 412. Fixing part; 4121. Limiting hole; 413. Pressure bearing part; 42. Elastic pad; 43. Trigger part; 431. Inserting slot; 44. Elastic part; 50. Filler.

[0011] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0013] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0014] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0016] In related technologies, the shell of headphones is usually equipped with buttons, which users can operate to switch between various functions. Specifically, the headphones include a pressable shell and a switch component set inside the shell. The switch component is triggered by the pressing of the shell to activate the circuit board, thereby realizing functions such as volume adjustment, start playback, pause playback, or skip tracks.

[0017] However, due to installation errors and other reasons, there may be a certain gap between the casing and the switch assembly. In the initial press, there is a play without feedback. Users need to press to a certain depth to trigger the button, resulting in poor button operation feel. Users cannot judge whether the press is successful through tactile feedback and need to confirm repeatedly. For example, multiple presses are required when changing songs, which affects the efficiency and user experience.

[0018] Furthermore, since the headphones are worn on the user's ears, when the user sweats or uses them in the rain, moisture can seep in through the seams of the outer shell, which can easily damage the internal switching components. Dust can also easily enter the interior of the outer shell through the gaps and accumulate between the outer shell and the switching components, causing the buttons to stick and further reducing the feel of button operation.

[0019] To resolve the above issues, please refer to [link / reference]. Figures 1 to 3 This application proposes an earphone 100. In the embodiments of this application, the earphone 100 includes a housing 10, a switch assembly 20, a decorative shell 30, a switch bracket 40, and a filler 50.

[0020] The housing 10 has an inner cavity and a mounting port 11 communicating with the inner cavity. A circuit board can be installed inside the inner cavity. The circuit board is electrically connected to the switch assembly 20 via wires, which can pass through the mounting port 11. The circuit board is used to receive trigger signals from the switch assembly 20. The switch assembly 20 is connected to the housing 10 and installed at the mounting port 11. A decorative shell 30 is placed on the housing 10 and surrounds the housing 10 to form a receiving cavity. The decorative shell 30 is made of hard plastic or other materials such as PC or ABS, which have non-deformable and high rigidity characteristics, can withstand the user's pressing pressure without deforming itself, and provides the user with a better pressing feel.

[0021] The switch bracket 40 is located within the receiving cavity and connected to the housing 10. The switch bracket 40 is positioned between the decorative housing 30 and the switch assembly 20, with one side abutting against the switch assembly 20 and the other side having a gap with the decorative housing 30. A filler 50 fills the gap between the decorative housing 30 and the switch bracket 40. Therefore, the filler 50 needs to have a certain degree of flexibility to absorb some of the pressing pressure, acting as a buffer during the transmission of pressing pressure and evenly transmitting the pressing pressure to the switch bracket 40.

[0022] It should be noted that the filler 50 includes a flexible pad filling the gap. The flexible pad can be made of foam or silicone. The porous structure and elastic deformation ability of the foam, or the elastic deformation ability of the silicone, can further absorb the impact of pressing. After the decorative shell 30 is released, the flexible pad can quickly rebound, causing the decorative shell 30 and the switch bracket 40 to return to their original positions, forming a smooth cycle of rebound after the press is canceled. This retains the clear feedback provided by the hard decorative shell 30, while also providing the comfortable touch provided by the soft filler 50, thus balancing the clarity of operation and the comfort of the user's hand feel.

[0023] Alternatively, the filler 50 may include a colloid that fills the gap, which connects the decorative shell 30 and the switch bracket 40 together. The colloid may be adhesive, double-sided tape, etc. When the colloid is adhesive, such as silicone adhesive that still has a certain elasticity after curing, the gap can be filled well by potting. After curing, the adhesive still has a certain deformation capacity, so that when the user presses the decorative shell 30, the force can be transmitted to the switch bracket 40 through the deformation capacity of the adhesive. The switch bracket 40 can then move toward the switch assembly 20 to trigger the switch assembly 20. The slight elasticity of the adhesive can provide slight deformation buffer when pressing, so that the pressing force changes from a sudden increase to a linear increase, avoiding the fingertip tingling caused by hard contact.

[0024] Alternatively, the filler 50 may include a flexible pad and an adhesive, both of which can be of any of the types mentioned above. The flexible pad fills the gaps, and its compression can be adjusted to fit different gaps, ensuring a tight fit. The adhesive, before curing, can penetrate into microscopic gaps caused by surface unevenness, effectively transmitting pressure and preventing misalignment between the decorative shell 30 and the switch assembly 20, thus improving the button's tactile feel. Simultaneously, the adhesive connects the decorative shell 30, the flexible pad, and the switch bracket 40 together, making them a unified whole. Even after repeated pressing over a long period, displacement is unlikely, effectively solving the problem of misalignment caused by displacement or even detachment of the filler 50.

[0025] During the assembly process, there are certain tolerances between the housing 10, the decorative housing 30 and the switch bracket 40. The filler 50 can actively fill the gap between the decorative housing 30 and the switch bracket 40. No matter how the component tolerances change, the filler 50 can achieve a good connection through its own thickness adaptation or deformation compensation.

[0026] This technical solution utilizes a filler 50 positioned within a gap, abutting against the decorative shell 30 and the switch bracket 40 respectively, to achieve a gapless force transmission path between the decorative shell 30 and the switch assembly 20. The user can apply pressure to the decorative shell 30, causing it to move and drive the filler 50 and switch bracket 40 toward the switch assembly 20, triggering the switch assembly 20. The switch assembly 20, in turn, interacts with a circuit board within the shell 10 to control the switching of different functions of the headphones 100. When the pressure applied to the decorative shell 30 is removed, the filler 50 and switch bracket 40 return to their original shape, disengaging from triggering the switch assembly 20, and the decorative shell 30 returns to its original position, awaiting the next button press. When the user presses the decorative shell 30, the pressure is directly transmitted through the decorative shell 30 to the filler 50. Because the filler 50 is positioned to abut against both the decorative shell 30 and the switch bracket 40, it avoids any gaps between them. The filler 50 can linearly transmit the pressure to the switch bracket 40, thereby triggering the switch assembly 20. The user can clearly perceive the trigger feedback as soon as the press begins, avoiding the uncertainty of no response when pressing lightly or a stiff feel when pressing heavily. This instant feedback allows the user to determine whether the operation was successful, improving efficiency.

[0027] The filler 50 is disposed in the gap between the decorative shell 30 and the switch bracket 40. It can be completely filled in the gap to maintain better sealing and pressing accuracy. Of course, the filler 50 can also not be completely filled in the gap, but is disposed corresponding to the switch assembly 20. While ensuring a stable force transmission path, it can further save materials and meet the miniaturization and lightweight requirements of the earphone 100.

[0028] The switch bracket 40 maintains a stable posture through its fixed connection with the housing 10. The filler 50 is located within the gap and abuts against both the decorative shell 30 and the switch bracket 40, forming a surface contact force transmission interface. Regardless of whether the user presses the center or the edge of the decorative shell 30, the rigidity of the hard plastic material of the decorative shell 30 can evenly distribute the pressing force to the entire area of ​​the filler 50. The filler 50 then transmits the force to the switch bracket 40 through its own deformation characteristics, ensuring that the switch bracket 40 is subjected to balanced force and will not experience trigger delay or local jamming due to different pressing positions. For example, when the user presses the edge of the decorative shell 30, the hard plastic decorative shell 30 will not produce local indentation. The elastic deformation of the filler 50 can compensate for the force difference at the pressing point, so that the switch bracket 40 always maintains its direction of movement toward the switch assembly 20, pushing the switch assembly 20 to trigger, achieving a consistent pressing feel throughout the entire area.

[0029] A mounting groove 12 is provided on the surface of the housing 10 near the decorative shell 30. A mounting opening 11 is formed at the bottom of the mounting groove 12. The switch bracket 40 is located within the mounting groove 12, connected to the groove wall and sealing the mounting opening 11. The depth and size of the mounting groove 12 can match the switch assembly 20. The tight enclosure structure of the mounting groove 12 protects the switch assembly 20, directly blocking the intrusion of external dust and moisture while reducing its volume. Alternatively, the depth of the mounting groove 12 can be slightly greater than the height of the switch assembly 20, ensuring that the switch assembly 20 can be embedded within the mounting groove 12, leaving contact points for contact with the switch bracket 40, thus reducing the exposed area of ​​the switch assembly 20. By utilizing the groove of the mounting groove 12 to house the switch bracket 40, the contact area between the switch assembly 20 and the external environment is reduced, significantly decreasing the probability of dust accumulation and moisture adhesion, and avoiding risks such as contact oxidation and short circuits in the switch assembly 20.

[0030] The switch bracket 40 not only bears the function of transmitting pressing force, but also can fit tightly with the groove wall of the mounting groove 12 to form a closed space. The edge of the switch bracket 40 and the groove wall of the mounting groove 12 are fixed with glue. Applying glue around the switch bracket 40 can seal the joint between the groove body of the mounting groove 12 and the switch bracket 40, preventing moisture and dust from seeping in from the connection gap and affecting the triggering response of the switch assembly 20.

[0031] The switch bracket 40 can combine sealing and force transmission functions, eliminating the need for an additional cover plate on the mounting slot 12, reducing the number of parts, further compressing the structural thickness, and achieving a space optimization design for the earphone 100. While maintaining the functional integrity of the switch assembly 20, it reduces the weight of a single earphone and improves the pressure-free wearing experience, making it especially suitable for long-term wearing scenarios.

[0032] In one embodiment of this application, as Figure 1 and Figure 2 As shown, the earphone 100 includes a sound-emitting part 101 and a main body 102. The sound-emitting part 101 is provided with a sound outlet, which is used to output the sound waves generated by the sound-producing unit inside the earphone 100 to the user's ear canal. The main body 102 is provided with a mounting opening 11. A decorative shell 30 is mounted on the main body 102 and surrounds the main body 102 to form a receiving cavity. The sound-emitting part 101 is connected to the side of the main body 102 facing away from the decorative shell 30.

[0033] When a user wears the headphones 100, their fingers naturally rest on one side of the main body 102, while the sound outlet is located on the other side. This physical isolation prevents accidental button presses when pressing the decorative shell 30, which might obstruct the sound outlet, or when adjusting the alignment of the sound outlet with the user's ear canal. Especially during exercise or commuting, users simply need to bring their fingers close to their ears; their fingertips can naturally extend to that area without needing to consciously adjust their finger position to touch the outermost decorative shell 30 and press to trigger the button function, without affecting the acoustic performance of the sound outlet. When the decorative shell 30 is pressed, the vibration generated by its mechanical action is absorbed by the main body 102 and cannot be directly transmitted to the sound outlet on the sound outlet side 101. This avoids interference with the sound output when the decorative shell 30 is pressed, resulting in a purer listening experience, especially when playing soft music or vocals.

[0034] The earphone 100 also includes an ear hook (not shown in the figure). The ear hook may be made of thermoplastic polyurethane soft rubber material, making it more comfortable for users to wear and preventing ear pain even after prolonged use. The ear hook is connected to the main body 102 and extends towards the back of the ear, and at least partially hooks behind the ear, so that the ear hook, together with the sound output part 101 and the main body 102, can wear the earphone 100 in the user's ear. In the wearing state, the sound output part 101 is located in or partially located in the concha cavity, and the main body 102 is at least partially located on the back of the helix or the back of the antitragus. The sound output part 101 and the main body 102 work together to hold and stably wear the earphone 100 in the user's ear.

[0035] The mounting port 11 is located at the end of the main body 102 near the sound outlet 101, and the ear hook is connected to the other end of the main body 102 away from the mounting port 11. This allows the main body 102 to integrate button-related structures at the end near the ear canal opening and connect the ear hook at the end away from the ear canal opening. The center of gravity of the earphone 100 is located in the middle area of ​​the main body 102, making the earphone 100 fit the ear contour better when worn, reducing the pulling sensation caused by integrating all components at one end of the main body 102, and enhancing structural stability. Furthermore, when the user presses the button, since the mounting port 11 is located at one end of the main body 102 and the ear hook is connected to the other end of the main body 102, the pressure generated will not affect the hanging position of the ear hook, avoiding the ear hook being squeezed against the ear after being transmitted through the main body 102, thus preventing user discomfort.

[0036] It should be noted that the housing 10 includes an upper housing and a lower housing. The upper housing and the lower housing are connected and fit together to form an inner cavity. The connection method includes, but is not limited to, snap-fitting, bonding, etc. It is also possible that the two are snap-fitted and then bonded. For example, the upper housing and the lower housing can be quickly connected by a preset buckle. After snap-fitting, a fixing adhesive (such as silicone glue or hot melt glue) is applied to the joint to further improve the connection stability.

[0037] The mounting port 11 is provided on the upper shell, and the decorative shell 30 is provided on the side of the upper shell that faces away from the lower shell. The upper shell and part of the lower shell constitute the main body 102, while the other part of the lower shell constitutes the sound-emitting part 101. This makes the main body 102 and the sound-emitting part 101 clearly defined in function, while structurally they are interconnected and compatible. Of course, the upper shell and the lower shell can be integrally formed by injection molding or other methods to ensure the structural strength of the shell 10. This application does not limit this.

[0038] In one structural form, please refer to Figures 2 to 4 The switch bracket 40 includes a cantilever 41 and an elastic pad 42. The elastic pad 42 can be a TPU (Thermoplastic Polyurethane) soft pad, which is an elastic soft pad made of thermoplastic polyurethane elastomer. It has high strength, wear resistance, low temperature resistance, and aging resistance, combining the elasticity of rubber and the strength of plastic. It can be processed through various processes such as injection molding and extrusion to meet the needs of adapting the elastic pad 42 to different shapes. TPU material has high elasticity at room temperature, excellent resilience, and is very wear-resistant. Moreover, TPU material is also environmentally friendly, non-toxic, and recyclable, making it relatively safe in the scenario where people wear headphones 100 close to their bodies.

[0039] After the elastic pad 42 is connected to the wall of the mounting groove 12, it can be used to seal the mounting opening 11. One side of the elastic pad 42 abuts against the switch assembly 20, and the other side abuts against the cantilever 41. The side of the cantilever 41 away from the elastic pad 42 abuts against the filler 50. The cantilever 41 can be made of plastic and has directional force transmission characteristics, which can prevent the pressure from being dispersed. The elastic pad 42 acts as an intermediary between the cantilever 41 and the switch assembly 20. When the user presses the decorative shell 30, the pressure is transmitted to the cantilever 41 through the filler 50. The cantilever 41 first squeezes the elastic pad 42. The elastic pad 42, through its own deformation, transforms the instantaneous rigid impact into a slowly increasing force feedback, avoiding the stinging sensation caused by direct hard contact with the fingertips. The cushioning of the elastic pad 42 makes the pressure change smoother. The user can clearly perceive the relationship between the pressing depth and the feedback intensity, improving the consistency of the button operation feel. As the pressing stroke progresses, the feedback force gradually increases, which is especially suitable for long-term high-frequency pressing and reduces fingertip fatigue.

[0040] The elastic potential energy stored in the elastic pad 42 when pressed will be released the moment it is released, causing the cantilever 41 to return to its original position quickly. At the same time, the rebound of the filler 50 avoids the sticky feeling caused by the lag in the reset of the switch bracket 40. The rebound assistance of the elastic pad 42 makes the reset after pressing smoother. When the user operates continuously, there will be no noticeable delay, and the continuity of operation is significantly improved.

[0041] Meanwhile, since the cantilever 41 is fixedly connected to the housing 10 by means of adhesive bonding, screwing, etc., and its two sides abut against the filler 50 and the elastic pad 42 respectively, it can form multi-point support for the cantilever 41. When pressed, the stress is dispersed, and the elasticity of the elastic pad 42 can further absorb some of the stress, reduce the total load borne by the cantilever 41, reduce the risk of fatigue deformation or fracture of the cantilever 41 due to long-term stress, and solve the core problem of the cantilever 41 being easily damaged.

[0042] Furthermore, the mounting groove 12 includes a first groove 121 and a second groove 122 that are connected. The mounting opening 11 is opened at the bottom of the first groove 121. The switch assembly 20 is located inside the first groove 121. The elastic pad 42 covers the first groove 121. Thus, external moisture and dust must first break through the first layer of protection between the decorative shell 30 and the filler 50, and then penetrate the gap between the pressure-bearing part 413 of the cantilever 41 and the elastic pad 42 before entering the first groove 121 to contact the switch assembly 20. The elastic pad 42 is connected to the groove wall of the first groove 121. It can be a fixed connection, such as double-sided tape or spot sealing, which further seals the connection gap, greatly reduces the intrusion path, and provides excellent waterproof and dustproof performance, thus better protecting the switch assembly 20.

[0043] The second groove 122 includes a connecting groove 1221 and a limiting groove 1222. The connecting groove 1221 connects the limiting groove 1222 and the first groove 121. The cantilever 41 passes through the connecting groove 1221. Specifically, the cantilever 41 includes an arm body 411 and a fixing part 412 and a pressure-bearing part 413 connected to both ends of the arm body 411. A part of the arm body 411 passes through the connecting groove 1221, the fixing part 412 is embedded in the limiting groove 1222, and the pressure-bearing part 413 is located in the first groove 121 and can move along with another part of the arm body 411 in the groove depth direction of the first groove 121.

[0044] Understandably, the groove wall of the second groove 122 is adapted to the outer wall of the cantilever 41, and the displacement of the cantilever 41 in multiple directions can be limited by the groove wall of the second groove 122. This ensures that the contact position between the pressure-bearing part 413 of the cantilever 41 and the elastic pad 42, and the fixed connection position between the fixed part 412 of the cantilever 41 and the housing 10 are more stable, avoiding the problem of pressure transmission failure caused by the offset or misalignment of the cantilever 41. When the pressure is transmitted from the filler 50 to the cantilever 41, the stress can be evenly distributed to the housing 10 through the embedding surface of the cantilever 41 and the groove wall of the second groove 122, increasing the support area and avoiding stress concentration at the connection between the cantilever 41 and the housing 10. When the reaction force of the switch assembly 20 is transmitted to the cantilever 41, the local stress on the cantilever 41 is also reduced through the dispersion of the embedding surface, thus extending the overall fatigue life of the cantilever 41.

[0045] One side of the pressure-bearing part 413 abuts against the filler 50, and the other side abuts against the elastic pad 42. The other side of the pressure-bearing part 413 can also be protruded towards the groove depth of the first groove 121 to reduce the contact area between the pressure-bearing part 413 and the elastic pad 42, ensuring that the switch assembly 20 can be triggered in time, eliminating the sense of play caused by the play, and thus ensuring a better button operation feel.

[0046] Because the arm 411 always passes through the connecting groove 1221, the pressure-bearing part 413 connected to the arm 411 maintains vertical movement under the guidance of the groove wall of the connecting groove 1221, ensuring that it always vertically presses the elastic pad 42, thereby constraining the movement direction of the pressure-bearing part 413. Even if the user presses the edge area of ​​the decorative shell 30, the rigid connection between the fixed part 412 of the cantilever 41 and the shell 10 can disperse the constraint force, completely avoiding the problem of trigger delay or invalid pressing caused by one edge of the cantilever 41 being pressed down while the other edge is raised due to eccentric pressing. This directional motion design greatly improves the transmission efficiency of pressing force. When the user presses, they can clearly feel the linear relationship between the pressing depth and the feedback intensity, avoiding the pressing play between the decorative shell 30 and the switch assembly 20, and improving the feel of button operation.

[0047] In some embodiments, please refer again Figures 2 to 4 The fixing part 412 is fixedly connected to the housing 10, and the fixing connection method includes, but is not limited to, screwing and gluing. A limiting protrusion 13 is provided on one of the fixing part 412 and the housing 10, and a limiting hole 4121 is provided on the other of the fixing part 412 and the housing 10, with the limiting protrusion 13 inserted into the limiting hole 4121. That is, the limiting protrusion 13 can be provided on the fixing part 412, and the limiting hole 4121 can be provided on the housing 10; correspondingly, the limiting protrusion 13 can be provided on the housing 10, and the limiting hole 4121 can be provided on the fixing part 412. When the limiting protrusion 13 is inserted into the limiting hole 4121, an interference fit is formed. The outer wall of the limiting protrusion 13 and the hole wall of the limiting hole 4121 generate radial pressure between them, so that the two are tightly engaged. Even if subjected to stress such as glue curing shrinkage and slight deformation of the shell 10, there will be no relative displacement. This ensures that there will be no pressing play between the decorative shell 30 and the switch assembly 20 due to the positional deviation of the case bracket, thus improving the button operation feel.

[0048] Specifically, the fixing part 412 is provided with two limiting holes 4121, which are arranged opposite each other in a direction perpendicular to the extension direction of the arm body 411. This symmetrical distribution can form bidirectional limiting in the direction perpendicular to the arm body 411, thereby limiting the displacement of the fixing part 412. The housing 10 is provided with two limiting protrusions 13, which protrude from the bottom wall of the limiting groove 1222. The limiting groove 1222 cooperates with the limiting groove 1222 to limit and constrain the cantilever 41, forming multi-directional positioning. This ensures that the pressure-bearing part 413 of the cantilever 41 is effectively aligned with the elastic pad 42, and the elastic pad 42 is effectively aligned with the switch assembly 20, thereby avoiding problems such as uneven pressure distribution or trigger point offset caused by positioning deviation.

[0049] During assembly, the two limiting holes 4121 on the fixing part 412 can be aligned with the two limiting protrusions 13 on the bottom wall of the limiting groove 1222. At this time, the fixing part 412 is initially limited. After alignment, the fixing part 412 is embedded in the limiting groove 1222, so that the fixing part 412 and at least part of the arm 411 can be limited in the limiting groove 1222, realizing quick assembly and limiting. Then, the part of the cantilever 41 embedded in the limiting groove 1222 is fixed by means of glue, hot melt, etc. This dual fixation of mechanical limiting and glue assistance can effectively solve the problem of cantilever 41 loosening due to glue aging, improve the positioning stability of cantilever 41, and ensure that the initial alignment accuracy is maintained after long-term use. This further ensures the long-term reliability of the switch bracket 40, and ensures that there will be no pressing play between the decorative shell 30 and the switch assembly 20 due to the position deviation of the button bracket, thus improving the button operation feel.

[0050] In some embodiments, the housing 10 is further provided with a receiving groove 14, which communicates with the mounting groove 12. The decorative shell 30 is located in the receiving groove 14. After being pressed, the decorative shell 30 can move in the groove depth direction of the receiving groove 14 and provide travel space for the decorative shell 30 to drive the filler 50 and the switch bracket 40 toward the switch assembly 20. When the decorative shell 30 is pressed, it can only move in the groove depth direction of the receiving groove 14. The bottom of the receiving groove 14 can prevent the decorative shell 30 from being pressed down too much, ensuring that the travel of each press is consistent, avoiding the loose feel caused by excessive travel or the unclear triggering caused by insufficient travel, ensuring that the pressing force is transmitted from the decorative shell 30 to the switch assembly 20 without interruption, eliminating the sense of empty travel caused by play, and also avoiding excessive deformation of the filler 50 or damage to the switch assembly 20 due to excessive pressing.

[0051] Furthermore, the outer surface of the decorative shell 30 smoothly transitions with the outer surface of the shell 10, preventing the decorative shell 30 from protruding from the shell 10 and disrupting the overall design of the earphone 100. This smooth transition also satisfies the streamlined design of the earphone. The edge of the recess 14 can be rounded to blend seamlessly with the edge of the decorative shell 30, ensuring a consistent curvature between the outer surfaces of the decorative shell 30 and the shell 10, eliminating any noticeable boundary when touched. If the shell 10 is made of a matte material, the decorative shell 30 can be made of a similarly textured hard plastic, further minimizing the visual distinction of the button area. The color of the decorative shell 30 can be the same as that of the shell 10, achieving a striking design. A reminder mark can be designed on the decorative shell 30 corresponding to the position of the switch assembly 20, allowing users to more intuitively understand the button function area. Of course, the color of the decorative shell 30 can also be different from that of the shell 10, making the earphone's appearance more concise and consistent, meeting users' aesthetic expectations for invisible wearing.

[0052] The decorative shell 30 is harder than the shell 10, and its thickness is also thinner. When pressed, the high-hardness decorative shell 30 itself hardly deforms, allowing the deformation feedback from the filler 50 and switch bracket 40 to be directly transmitted to the fingertip. The user can clearly perceive the trigger point and confirm successful triggering. Furthermore, the thinner design of the decorative shell 30 reduces tactile transmission loss, allowing subtle pressing movements of the fingertip to be quickly transmitted to the filler 50, avoiding pressing delays caused by an excessively thick decorative shell 30. At the same time, the thinner thickness makes the decorative shell 30 lighter, and combined with the travel limitation of the receiving groove 14, the starting resistance during pressing is smaller, improving the lightness of pressing and reducing fingertip fatigue from long-term high-frequency pressing, providing the user with a better pressing feel.

[0053] In another structural form, please refer to Figure 5 and Figure 6 The switch bracket 40 includes a trigger part 43 and an elastic part 44 connected together. The trigger part 43 is made of hard plastic, such as POM, while the elastic part 44 is made of soft plastic and has a certain degree of elasticity. The elastic part 44 is located around the periphery of the trigger part 43 and is fixedly connected to the wall of the mounting groove 12. One side of the trigger part 43 abuts against the switch assembly 20, and the other side abuts against the filler 50. When the decorative shell 30 is pressed, the filler 50 pushes the trigger part 43, and the trigger part 43 causes the elastic part 44 around it to deform synchronously. The deformation force of the elastic part 44 is concentrated on the trigger part 43 and then transmitted to the switch assembly 20, thereby triggering the switch assembly 20. This simplifies the force transmission path, reduces the transmission loss of pressing force from the filler 50 to the switch assembly 20, ensures that it can be triggered with a slight press, and eliminates the feeling of play.

[0054] The trigger part 43 and the elastic part 44 are integrally molded by injection molding to prevent them from loosening or falling off due to long-term pressing. The elastic part 44 can be pre-fixed to the groove wall of the mounting groove 12 with double-sided tape, and then sealed and reinforced with glue to achieve a fixed connection, which improves the connection stability and waterproof and dustproof effect. Even if moisture breaks through the protection of the filler 50, it will be blocked by the seal around the elastic part 44 and will not be able to contact the switch assembly 20. Even with long-term high-frequency pressing, the elastic part 44 will not fall off the groove wall of the mounting groove 12 and cause the entire switch bracket 40 to shift, ensuring that the position of the trigger part 43 is always aligned with the contact of the switch assembly 20 and improving the button operation feel.

[0055] In some embodiments, a recessed groove 431 is provided on the side of the trigger portion 43 facing away from the switching assembly 20, and at least a portion of the filler 50 is embedded in the recessed groove 431. The recessed groove 431, with a preset groove shape, such as rectangular, trapezoidal, or arc-shaped, restricts the radial displacement of the filler 50 on the surface of the trigger portion 43, ensuring that the filler 50 is always within the preset functional area of ​​the trigger portion 43, and avoiding structural misalignment due to assembly deviations. The recessed groove 431 can prevent lateral compression deformation of the filler 50 during pressing by limiting the groove wall, ensuring the relative position stability between the filler 50 and the trigger portion 43. Furthermore, by embedding the filler 50 in the recessed groove 431, the contact area between the filler 50 and the trigger portion 43 is increased, forming a partially integrated connection between the filler 50 and the trigger portion 43. Even if slight wear occurs on the contact surfaces, the portion of the filler 50 embedded in the recessed groove 431 remains fixed, significantly reducing the probability of the filler 50 falling off.

[0056] The recessed groove 431 positions the filler 50, indirectly ensuring a stable force transmission path during pressing. If the filler 50 is misaligned, it may cause uneven force on the trigger part 43 during pressing, resulting in problems such as ineffective pressing on one side or inconsistent pressing stroke. By restricting the position of the filler 50 with the recessed groove 431, the force of each press can be evenly transmitted to the trigger part 43 through the filler 50, ensuring consistent trigger sensitivity in different usage scenarios, improving the button operation feel, and thus enhancing the user experience.

[0057] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0058] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An earphone, characterized by comprising: include: The housing has an inner cavity and a mounting port communicating with the inner cavity; A decorative shell is placed on the housing and encloses the housing to form a receiving cavity; A switch assembly is installed at the mounting port and is connected to the housing. A switch bracket is located within the receiving cavity and connected to the housing. One side of the switch bracket abuts against the switch assembly, and the other side is spaced apart from the decorative shell to form a gap. as well as A filler element is used to fill the gap between the decorative shell and the switch bracket; When the decorative shell is pressed, it can drive the switch bracket toward the switch assembly to trigger the switch assembly.

2. The earphone of claim 1, wherein The housing includes a sound-emitting part and a main body. The main body is provided with the mounting port. The decorative shell is installed on the main body and surrounds the main body to form a receiving cavity. The sound-emitting part is connected to the side of the main body facing away from the decorative shell, and the sound-emitting part is provided with a sound outlet.

3. The earphone of claim 2, wherein The mounting port is located at one end of the main body near the sound output part.

4. The earphone of claim 1, wherein The housing has a mounting groove on its surface near the decorative shell, the mounting opening is located at the bottom of the mounting groove, and the switch bracket is located in the mounting groove and covers the mounting opening.

5. The earphone of claim 4, wherein The switch bracket includes a cantilever and an elastic pad. The elastic pad is used to cover the mounting port, and one side of the elastic pad abuts against the switch assembly, while the other side abuts against the cantilever. The side of the cantilever away from the elastic pad abuts against the filler.

6. The earphone of claim 5, wherein The mounting slot includes a first slot and a second slot that are connected to each other. The mounting opening is located at the bottom of the first slot. The switch assembly is located inside the first slot. The elastic pad covers the first slot.

7. The earphone of claim 6, wherein The cantilever includes a cantilever body and a fixing part and a pressure-bearing part connected to both ends of the cantilever body. The second groove includes a connecting groove and a limiting groove, and the connecting groove connects the limiting groove and the first groove. The cantilever passes through the connecting groove, the fixing part is embedded in the limiting groove, the pressure-bearing part is located in the first groove and can move in the groove depth direction of the first groove, one side of the pressure-bearing part abuts against the filling member, and the other side abuts against the elastic pad.

8. The earphone of claim 7, wherein The fixing part is provided with a limiting hole, the housing is provided with a limiting protrusion, and the limiting protrusion protrudes from the bottom wall of the limiting groove and is inserted into the limiting hole.

9. The earphone of claim 4, wherein The switch bracket includes a trigger part and an elastic part connected together. The elastic part is disposed around the periphery of the trigger part and is fixedly connected to the groove wall of the mounting groove. One side of the trigger part abuts against the switch assembly, and the other side abuts against the filler.

10. The earphone of claim 9, wherein The trigger portion is provided with a recessed groove on the side opposite to the switch assembly, and at least a portion of the structure of the filler is embedded in the recessed groove.

11. The earphone of claim 1, wherein The housing is also provided with a receiving groove, the decorative shell is installed in the receiving groove, and the outer surface of the decorative shell smoothly transitions with the outer surface of the housing.

12. The earphone of claim 1, wherein The housing includes an upper shell and a lower shell, the upper shell and the lower shell are connected and fitted together to form the inner cavity, the mounting opening is opened on the upper shell, and the decorative shell is covered on the side of the upper shell facing away from the lower shell.

13. The earphone of claim 1, wherein The filler includes a flexible pad that fills the gap; Alternatively, the filler includes an adhesive that fills the gap, the adhesive connecting the decorative shell and the switch bracket together; Alternatively, the filler may include a flexible pad and an adhesive, the flexible pad filling the gap and the adhesive connecting the decorative shell, the flexible pad, and the switch bracket together.

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