earphone

Abstract

This application discloses an earphone, which includes an ear shell and a microphone. The ear shell includes a main shell and a sound outlet. The main shell includes a main body portion and a protrusion. The sound outlet is connected to the main body portion. The protrusion protrudes from one side of the main body portion and is spaced apart from the sound outlet. The protrusion is configured to be located on the outside of the user's helix when the earphone is worn by the user and extends towards the user's antihelix. The microphone is at least partially located within the protrusion. A pickup hole corresponding to the microphone is provided on the surface of the protrusion facing the sound outlet. The earphone based on this application embodiment maintains good usability even when lying on its side.

Description

Technical Field

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

[0002] In related technologies, to ensure call quality, headphones typically have their microphones positioned on the outer surface facing away from the ear when worn. While this design is sufficient for basic daytime use, the microphones can easily be blocked by pillows or bedding during sleep, especially when the user is lying on their side, thus affecting the headphones' performance. Utility Model Content

[0003] This application provides an earphone designed to maintain good usability even when the earphone is in a lying position.

[0004] This application provides an earphone, including an ear shell and a microphone. The ear shell includes a main shell and a sound outlet. The main shell includes a main body and a protrusion. The sound outlet is connected to the main body. The protrusion protrudes from one side of the main body and is spaced apart from the sound outlet. The protrusion is configured to be located on the outside of the user's helix when the earphone is worn by the user and extends toward the user's antihelix. The microphone is at least partially located inside the protrusion. The surface of the protrusion facing the sound outlet has a pickup hole corresponding to the microphone.

[0005] Based on the embodiments of this application, the earphones have a protrusion on one side of the main body, located on the outer side of the helix and extending towards the antihelix. This helps to reduce the overall size and profile thickness of the earphones in the direction perpendicular to the auricle. The smaller profile thickness means that when lying on one's side while wearing the earphones, they can be fitted into the user's concha as much as possible. The vertical pressure of the earphones on the auricle and surrounding area will be relatively reduced, thereby alleviating discomfort during wear and improving wearing comfort during sleep.

[0006] Furthermore, the microphone is positioned within a protrusion extending from the periphery of the main body, with the pickup hole located on the surface of the protrusion facing the sound outlet. This structure makes the microphone pickup hole on the protrusion on the side of the main body less likely to be completely blocked by a pillow when lying on one's side, compared to the traditional position where it is located behind the ear. This position is further outward relative to the auricle when lying on one's side, and the pickup hole faces the sound outlet (usually roughly facing forward or towards the ear canal), rather than directly pressing down onto the pillow. Therefore, even in the side-lying position, the pickup path remains unobstructed, allowing the headset to still pick up external noise signals for noise cancellation and to pick up the user's voice for basic call functionality, thus ensuring the headset's performance. Attached Figure Description

[0007] 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 these drawings without creative effort.

[0008] Figure 1 This is a schematic diagram of the structure of the earphone in one embodiment of this application;

[0009] Figure 2 for Figure 1 A structural diagram of the structure shown from another angle;

[0010] Figure 3 for Figure 1 A schematic diagram of the exploded structure shown;

[0011] Figure 4 for Figure 1 Another exploded structural diagram of the structure shown;

[0012] Figure 5 for Figure 1 A structural diagram of the structure shown from another angle (ear wings and ear caps omitted);

[0013] Figure 6 For along Figure 5 A schematic diagram of a cross-sectional structure of line AA in the middle;

[0014] Figure 7 for Figure 6 Enlarged structural diagram at point B;

[0015] Figure 8 for Figure 1 A schematic diagram of the internal structure of the structure shown;

[0016] Figure 9 for Figure 8 A schematic diagram of the exploded structure shown;

[0017] Figure 10 for Figure 1 Another internal structural diagram of the structure shown;

[0018] Figure 11 for Figure 10 A schematic diagram of the exploded structure shown;

[0019] Figure 12 This is a schematic diagram of the internal structure of the earphone in another embodiment of this application;

[0020] Figure 13 for Figure 12 A schematic diagram of the exploded structure shown;

[0021] Figure 14 for Figure 1 A schematic diagram of the exploded structure of the part shown.

[0022] Figure 15 This is a schematic diagram of the structure of the protective netting in one embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Earphone; 10. Ear shell; 11. Main shell; 11a. Mounting cavity; 111A. Main body; 111A1. First mounting cavity; 112A. Protrusion; 112A1. Second mounting cavity; 112A2. Sound pickup hole; 112A3. Tuning hole; 111B. Front shell; 111B1. Front shell ventral surface; 111B2. Front shell side surface; 111B3. Snap-fit ​​groove; 11 2B, back cover; 12, sound outlet; 12a, sound outlet channel; 12b, sound outlet hole; 12c, limiting groove; 12d, positioning groove; 121, annular protrusion; 10a, pressure relief channel; 20, ear wing; 21, fixing sleeve; 22, supporting part; 30, ear cap; 30a, pressure relief groove; 30b, through hole; 31, annular recess; 40, charging part; 50, magnet; 60, head. Wire; 70, Microphone; 80, Feedback Microphone; 90, Battery; 91, Speaker Unit; 911, Housing; 912, Power Pin; 913, Support Frame; 9131, Support Arm; 9132, Limiting Arm; 9132a, Support Groove; 92, Protective Net; 92a, Hole; 921, Protective Part; 922, Connecting Part; 9221, Flanged Edge; 923, Support Part; 9231, Support Foot; 94, Reinforcing Plate; 941, Connecting Sub-plate; 942, Support Sub-plate; 95, Electrical Connector; 951, First Electrical Connector; 951a, Clearing Hole; 952, Second Electrical Connector; 96, Control Board; 96a, Sound Passage Channel; 961, Contact Point; 971, First Tuning Net; 972, Second Tuning Net; 98, Protective Adhesive; 99, Mesh Fabric. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] Headphones (Earphones, Headphones, Head-sets, Earpieces) are a pair of transducers that receive electrical signals from a media player or receiver and convert them into audible sound waves using speaker drivers placed close to the ears.

[0027] From the perspective of the overall development of the audio industry, wireless headphones are still a relatively new product. Wireless headphones utilize Bluetooth technology to achieve a wire-free connection, allowing users to transmit audio wirelessly to their phones or other devices. The main advantages of wireless headphones include the absence of wires, portability, and ease of use, making them particularly suitable for use during exercise.

[0028] Among various headphone types, sleep headphones, designed for sleep or rest, are gradually becoming an important niche market. These headphones aim to help users isolate environmental noise during sleep while maximizing wearing comfort.

[0029] This embodiment uses an in-ear sleep headset as an example for explanation. In other embodiments, the headset may have other structures, such as a semi-in-ear structure. The shape and structure of the headset are not limited to the above design. In the relevant technical field, the shape and structure design of headsets is very mature, and headsets can adopt various shape and structure as needed, which will not be described in detail here.

[0030] like Figures 1 to 4 As shown, this application proposes an earphone 100, including an ear shell 10. The ear shell 10 is the main external structure of the earphone 100, and its interior has a space for accommodating electronic components and forming an acoustic structure. The ear shell 10 includes a main shell 11 and a sound outlet 12. The main shell 11 is the main body of the ear shell 10, and the main shell 11 has a mounting cavity 11a. The sound outlet 12 is located in the main shell 11. The sound outlet 12 is the part of the earphone 100 responsible for guiding sound to the user's ear, and its interior has a sound outlet channel 12a communicating with the mounting cavity 11a. The sound outlet 12 also has a sound outlet hole 12b communicating with the sound outlet channel 12a. When the earphone 100 is worn, the sound outlet hole 12b is oriented towards the user's ear canal.

[0031] In this embodiment, the diameter of the sound outlet 12 is 3mm-6mm, and the length is 3mm-10mm. If the diameter of the sound outlet 12 is less than 3mm, the sound propagation channel will be too narrow, causing significant sound wave diffraction and reflection, resulting in severe attenuation of high-frequency sounds and a muffled sound quality. At the same time, an excessively small opening can also cause excessive pressure inside the listener's ear, resulting in discomfort. Conversely, if the diameter is greater than 6mm, although it can provide a smoother sound channel and reduce high-frequency loss, an excessively large opening will cause the sound to be too diffuse and its directivity to deteriorate, resulting in sound energy loss in the external environment of the headphones 100, reducing the focus and efficiency of the sound. At the same time, a larger diameter may also increase the discomfort when the headphones 100 are worn by the user, which is not conducive to the miniaturization of the headphones 100. Similarly, if the length of the sound outlet 12 is less than 3mm, the path of sound waves from the speaker to the ear canal will be too short, lacking sufficient acoustic impedance matching and acoustic filtering, causing the sound to directly impact the ear canal and affecting the overall listening experience. While a length exceeding 10mm might offer some acoustic optimization, an excessively long conduit would increase sound transmission loss, particularly in the high-frequency range, resulting in a muffled sound. It would also increase the complexity and space required for the internal structure of the headphone 100, thus enlarging its overall size. Therefore, the diameter of the sound outlet 12 is limited to 3mm-6mm, and its length to 3mm-10mm.

[0032] Furthermore, the main housing 11 can be made of metal, such as, but not limited to, stainless steel, aluminum alloy, titanium alloy, magnesium alloy, copper alloy, etc. Compared to materials such as plastic, the main housing 11 made of metal has a lower lower limit for its wall thickness due to its strength and manufacturing process, which allows the sound outlet 12 of the earphone 100 to have a smaller wall thickness, thus helping to reduce the outer diameter and other dimensions of the nozzle 400. The wall thickness of the sound outlet 12 can be 0.1-0.3 mm, for example, 0.15 mm, 0.2 mm, 0.25 mm, etc. Moreover, compared to materials such as plastic, the metal nozzle 400 has higher rigidity under the same wall thickness, is less prone to deformation, which helps to reduce resonance during use, improve the sound quality of the earphone 100, and also helps to improve the structural strength of the sound outlet 12.

[0033] The headset 100 also includes a microphone 70. In this embodiment, the microphone 70 can simultaneously perform the dual functions of "main sound pickup" and "ambient sound pickup". For example, the signal from the microphone 70 is divided into two parts by an algorithm: one part is used to recognize the user's voice (similar to the main microphone), and the other part is used to analyze ambient noise. Then, the feedback signal from the FB microphone is combined for noise reduction.

[0034] In related technologies, for the active noise cancellation requirements of in-ear sleep headphones, the microphone is typically placed inside the headphone shell structure. To achieve sound pickup, this microphone is equipped with a pickup hole. A common existing layout places this pickup hole on the outer surface area facing away from the user's ear when the headphones are worn. When the user is in a side-lying sleeping position, this outer surface area facing away from the ear is in close contact with bedding such as pillows and mattresses. Because the microphone's pickup hole is located in this area, it is easily blocked or completely sealed by such bedding. Blockage or sealing of the pickup hole directly prevents the microphone from effectively collecting ambient noise signals, thus rendering the active noise cancellation function based on these signals ineffective.

[0035] Please continue reading. Figures 1 to 4 To address the aforementioned issues, in this embodiment, the main housing 11 includes a main body portion 111A and a protrusion 112A. The sound outlet 12 is connected to the main body portion 111A. The main body portion 111A is the primary part of the main housing 11, constituting the main outline and volume of the earphone 100, providing basic shape and structural support for the entire earphone 100, and accommodating necessary internal components. The main body portion 111A has a flat structure, which helps reduce the thickness of the earphone 100 in the direction perpendicular to the auricle, thereby reducing pressure on the ear and surrounding area when wearing it, especially when lying on one's side, and improving wearing comfort.

[0036] The protrusion 112A protrudes from one side of the main body 111A. Specifically, the protrusion 112A is configured to be located on the outside of the user's helix when the earphone 100 is worn by the user, and extends towards the user's antihelix. This avoids increasing the thickness of the main shell 11, and the main body 111A can maintain a relatively thin design. The protrusion 112A located on the side will not generate direct and large-area pressure in the main force direction of lying on the side, thereby effectively avoiding the obvious discomfort caused by the excessive thickness of the shell of the traditional earphone 100 when lying on the side, and improving the user's wearing experience in the lying position (especially the side-lying position).

[0037] It should be noted that the main body 111A and the protrusion 112A together form a continuous integral structure, jointly constructing the mounting cavity 11a. In other words, the protrusion 112A is not a separate component independent of the main body 111A. Through this integrated structural design, the ear shell 10 is divided into functionally distinct but structurally continuous regions.

[0038] Furthermore, the outer edge of the protrusion 112A smoothly transitions to the outer edge of the main body 111A, and the earphone shell 911 has no sharp edges or abrupt steps from the main body 111A to the protrusion 112A. When the earphone 100 is worn on the ear, especially when the user is lying on their side, this smooth edge can reduce the stinging sensation to the auricle, helix, or surrounding skin.

[0039] In this configuration, the microphone 70 is at least partially located within the protrusion 112A. Understandably, "at least partially" includes two scenarios: first, the entire microphone 70 is completely and entirely housed within the protrusion 112A; second, the microphone 70 is not entirely located within the protrusion 112A, but rather a portion is located within the main body 111A, while another portion extends and is located within the protrusion 112A.

[0040] Since there is still a certain space between the main body 111A and the sound outlet 12 and the antihelix when the earphone is worn, the protrusion 112A is set in this area. This allows for a suitable mounting position for the microphone 70 without significantly increasing the overall size of the earphone 100 or changing its basic wearing method (such as in-ear). This means that the protrusion 112A forms a local "raise" or "step" relative to the main body 111A in the direction towards the antihelix, thus creating a height difference. Furthermore, the surface of the protrusion 112A facing the sound outlet 12 has a pickup hole 112A2 corresponding to the microphone 70. In other words, the pickup hole 112A2 is located on the side away from the pressure area when the earphone 100 is lying down in the wearing state. The pickup path of the pickup hole 112A2 remains unobstructed. As a result, the earphone 100 can still obtain external noise signals through the pickup hole 112A2 to achieve noise reduction, and obtain the user's voice through the pickup hole 112A2 to achieve basic call function, thereby ensuring the performance of the earphone.

[0041] Furthermore, the central axis of the pickup hole 112A2 is set at an angle to the central axis of the main body 111A and extends outward from the main body 111A. Here, the outward side of the main body 111A refers to the side of the earpiece 100 facing the external contour of the ear when worn by the user. Specifically, the central axis of the pickup hole 112A2 is inclined from the inside out along the thickness direction of the main body 111A and towards the side away from the main body 111A. Since the microphone 70 is typically used to pick up ambient sound or conversation sounds, the inclined pickup hole 112A2 can adjust the microphone's primary pickup direction, making it more inclined to capture sound from a specific direction (such as the front or the outside). Furthermore, the internal structure of the earpiece 100 (such as the cavity and the sound outlet 12) may generate resonance or reflected sound. The inclined pickup hole 112A2 can prevent the microphone from directly receiving these internal sound waves, thereby reducing the impact of resonance on the pickup quality.

[0042] like Figure 5 , Figure 6 and Figure 7As shown, the headphones 100 also include a control board 96, which integrates various electronic components and circuits to control and manage the various functions of the headphones 100. The digital signal processor on the control board 96 can process audio signals, including noise reduction, sound enhancement, and equalization adjustment. The control board 96 is responsible for processing the audio signals collected by the microphone 70, including amplification, filtering, and noise reduction. For the noise-canceling headphones 100, the digital signal processor on the control board 96 can analyze and process the ambient noise collected by the microphone 70 to generate a noise-canceling signal.

[0043] The electronic control board 96 is provided with a sound passage 96a, which runs through the thickness of the electronic control board 96. The pickup hole 112A2 runs through the wall of the protrusion 112A. The sound passage 96a is connected to the pickup hole 112A2, and the microphone 70 is mounted on the part of the electronic control board 96 with the sound passage 96a. In other words, the external ambient noise entering through the pickup hole 112A2 can be smoothly and efficiently transmitted to the front of the microphone 70 diaphragm, reducing the obstruction or attenuation that the sound may encounter during transmission.

[0044] Because the microphone hole connects to the mounting cavity, it can also allow dust, fine fibers (such as hair and clothing fibers) to enter the earphone. Long-term accumulation may clog the microphone hole, affecting its normal operation and even damaging the internal structure.

[0045] Please continue reading. Figure 5 , Figure 6 and Figure 7 Therefore, the earphone 100 also includes a mesh fabric 99. A mounting groove is provided on the side of the protrusion 112A facing the mounting cavity 11a. The mounting groove communicates with the pickup hole 112A2. The mesh fabric 99 is embedded in the mounting groove, that is, connected to the inner side of the protrusion 112A, making its installation more secure and its positioning more precise, preventing displacement or deformation due to wearing or movement. The mesh fabric 99 covers the periphery of the pickup hole 112A2, preventing dust and fine fibers (such as hair and clothing fibers) from entering the earphone 100, protecting the feedback microphone 80 and internal circuitry.

[0046] like Figure 1 and Figure 3As shown, the mounting cavity 11a includes a first mounting cavity 111A1 and a second mounting cavity 112A1 that are connected to each other. The first mounting cavity 111A1 is disposed within the main body 111A, and the second mounting cavity 112A1 is disposed within the protrusion 112A. Understandably, the pickup hole 112A2 is connected to the second mounting cavity 112A1. The electronic control board 96 is flat, with part of it located within the first mounting cavity 111A1 and the other part extending into the second mounting cavity 112A1, allowing the electronic control board 96 to better adapt to the internal spatial layout of the earphone 100. This design fully utilizes the space of the main body 111A and the protrusion 112A, achieving a compact design for the earphone 100. This allows the earphone 100 to accommodate necessary electronic components while maintaining a small size, meeting functional requirements. The microphone 70 is mounted on the electronic control board 96, which shortens the signal transmission path, reduces signal interference during transmission, helps improve signal integrity and quality, and ensures that the microphone 70 can more accurately capture external ambient noise. Furthermore, since the microphone 70 is closer to the signal processing unit on the electronic control board 96, the signal processing delay can be significantly reduced, which is particularly important for the real-time noise reduction function and can improve the immediacy and accuracy of the noise reduction effect.

[0047] Since the main body 111A and the protrusion 112A are not two independent parts, but a continuous and smoothly transitioned whole, a boss structure with a certain thickness is naturally formed in the area where the main body 111A extends and connects to the protrusion 112A. The inner wall of the boss structure is part of the second mounting cavity 112A1. The boss structure can provide support for the electronic control board 96, and the microphone 70 is correspondingly set on the part of the electronic control board 96 supported by the boss structure.

[0048] Furthermore, mounting the microphone 70 on the control board 96 provides a more stable fixation, reducing the microphone 70's movement inside the headset 100 and improving its durability and reliability. During headset 100 assembly, this also reduces assembly steps and connection points, lowering the possibility of assembly errors and improving production efficiency.

[0049] like Figure 1 and Figure 3 As shown, the first mounting cavity 111A1 is directly connected to the sound outlet channel 12a, while the second mounting cavity 112A1 is connected to the sound outlet channel 12a through the first mounting cavity 111A1. The surface of the protrusion 112A facing the sound outlet 12 is also provided with a tuning hole 112A3 that connects to the second mounting cavity 112A1. Understandably, the tuning hole 112A3 connects to the external air and the rear cavity of the speaker unit 91, adjusting the air pressure on the back of the vibration system and controlling the acoustic coupling degree between the rear cavity and the external air. This is like providing an "outlet" or "pressure relief valve" for the sound waves on the back of the vibration system, thereby changing the pressure and acoustic load acting on the back of the diaphragm.

[0050] Furthermore, the tuning hole 112A3 and the pickup hole 112A2 are arranged adjacent to each other on the same side of the protrusion 112A. This means that when the headphones are worn by a user, the location of the tuning hole 112A3 on the protrusion 112A reduces the likelihood of it being blocked. If the tuning hole 112A3 is blocked, the pressure on the back of the vibration system cannot be properly released and regulated, disrupting the originally designed acoustic balance. This may lead to a deterioration in low-frequency response. Additionally, the tuning hole 112A3 shares a relatively fixed acoustic environment with the pickup hole 112A2 to improve the stability of sound pickup and tuning.

[0051] like Figure 5 and Figure 9 As shown, similar to the above-mentioned pickup hole 112A2, the earphone 100 also includes a first tuning mesh 971. The protrusion 112A has a connecting groove on the side facing the second mounting cavity 112A111a. The connecting groove is arranged adjacent to the mounting groove and communicates with the tuning hole 112A3. The first tuning mesh 971 is located in the connecting groove and can be firmly connected to the protrusion 112A by adhesive bonding. The first tuning mesh 971 covers the periphery of the tuning hole 112A3 and can prevent dust, fibers and other small particles from entering the earphone 100.

[0052] like Figure 3 and Figure 4 As shown, the headphones 100 also include ear wings 20, which wrap around a portion of the outer surface of the main body 111A. The ear wings 20 are typically made of soft materials, such as silicone or rubber, to reduce pressure on the ears and improve wearing comfort.

[0053] The ear wing 20 includes a fixed sleeve 21 and a supporting part 22 connected to each other. The fixed sleeve 21 is fitted over the main body 111A and can fix the main body 111A when the earphone 100 is worn by the user. This design ensures that the earphone 100 will not easily slip or fall off when worn, especially when the user is exercising or lying on their side.

[0054] The abutment 22 protrudes from the side of the fixing sleeve 21 away from the sound outlet 12, and is located on the side of the protrusion 112A facing the sound outlet 12. That is, the abutment 22 protrudes from the outside of the fixing sleeve 21, away from the sound outlet. This position usually corresponds to a specific area of ​​the auricle. Extending the abutment 22 to this area can more effectively utilize the bone or harder cartilage structure of the auricle as a support point.

[0055] The support portion 22 is configured to elastically abut against the user's antiauricular rhombus when the earphone 100 is worn. This contact with the antiauricular rhombus provides an additional support point for the earphone 100, further enhancing its wearing stability. The elastic design of the support portion 22 can adapt to different users' ear shapes, reducing pressure on the antiauricular rhombus and improving wearing comfort. Simultaneously, the elasticity of the support portion 22 can automatically adjust the contact force with the antiauricular rhombus, ensuring stable wearing in various activity scenarios.

[0056] Furthermore, when the earphone 100 is worn by the user, the supporting part 22 is located inside the protrusion 112A, and the supporting part 22 and the protrusion 112A are arranged at intervals, which can make full use of the space on both sides of the thickness direction of the main body 111A, making the layout of the earphone 100 more compact and the overall size of the earphone 100 smaller. The pickup hole 112A2 is located on the side of the protrusion 112A facing the supporting part 22. That is, when the supporting part 22 abuts against the user's antihelix, there is a certain gap between the supporting part 22 and the protrusion 112A. This design ensures that even when lying on one's side, pillows or other bedding will not directly press on the pickup hole 112A2, thus preventing the pickup hole 112A2 from being blocked.

[0057] Furthermore, along the thickness direction of the main body 111A, the orthographic projection of the tuning hole 112A3 is located outside the orthographic projection of the supporting part 22, which maximizes the unobstructed flow of the tuning hole 112A3 and prevents it from being blocked. This reduces the risk of the tuning hole 112A3 being blocked during wear, and the tuning hole 112A3 maintains as much communication with the outside air as possible, regardless of how the user adjusts the wearing posture.

[0058] In some embodiments, the abutment 22 is spaced apart from the protrusion 112A along the thickness direction of the main body 111A. If the abutment 22 and the protrusion 112A are too close, interference may occur in the sound wave propagation path, and may even cause some of the sound waves entering from the pickup hole 112A2 to be reflected back to the microphone 70 without processing, forming a so-called "acoustic short circuit" and reducing the noise reduction effect. The spaced arrangement can increase the free path of sound wave propagation. By separating the abutment 22 and the protrusion 112A containing the microphone 70 in the thickness direction, the distance between the two can be physically increased, and a certain amount of acoustic isolation can be provided by air or internal filling material (if any), reducing the interference of internal noise on microphone pickup.

[0059] Furthermore, along the thickness direction of the main body 111A, the orthographic projection of the protrusion 112A overlaps with the orthographic projection of the supporting part 22. When the user lies on their side, some of the pressure on the supporting part 22 is transmitted to the main body 111A below it, and this area of ​​the main body 111A is precisely where the protrusion 112A connects. This support helps resist the deformation or displacement of the protrusion 112A caused by lateral pressure, thereby protecting the internal microphone 70 and pickup hole 112A2 from being easily compressed and changed in angle or completely blocked.

[0060] Furthermore, the protrusion 112A and the supporting part 22 share a portion of the spatial projection in the direction perpendicular to the thickness of the main body 111A, which makes the overall structure more compact and avoids the problem that the headphone 100 needs a larger overall size due to the need to leave independent space for the two on the main body 111A.

[0061] It should be noted that, along the thickness direction of the main body 111A, the orthographic projection of the pickup hole 112A2 is adjacent to the edge of the orthographic projection of the supporting part 22, and along the thickness direction of the main body 111A, the orthographic projection of the pickup hole 112A2 and the orthographic projection of the supporting part 22 do not overlap. That is to say, the pickup path of the pickup hole 112A2 will not be blocked by the supporting part 22. Combined with the convex part 112A that is inclined through the pickup hole 112A2 mentioned above, this design allows the opening of the pickup hole 112A2 to be more directly aligned with the external sound source (such as ambient sound or call sound around the user), allowing the sound to enter the pickup hole 112A2 more smoothly, thereby allowing the microphone 70 to capture the target sound signal more accurately and reducing sound quality loss or pickup delay caused by structural obstruction.

[0062] Please continue reading. Figure 3 and Figure 4In some embodiments, the earphone 100 includes a battery 90 and a charging unit 40. To ensure the battery 90's battery life, the battery 90 is relatively large. The larger battery 90 is placed within a larger first mounting cavity 111A1 and electrically connected to the control board 96, providing power to the control board 96. The battery 90 and the control board 96 are arranged along the thickness direction of the main body 111A. The battery 90 has battery 90 pins that extend towards the control board 96 and are inserted into it to provide power. The charging unit 40 is located around the battery 90 and is electrically connected to the battery 90 via the control board 96. The charging unit 40 is used to charge the battery 90 and serves as an interface or sensing device responsible for charging the battery 90. It can be a physical contact (such as a USB Type-C interface, Lightning interface, or dedicated wireless charging contact) or a wireless charging coil. Its function is to receive external power (usually from the charging case or a direct connection to the charging cable) and safely and efficiently transfer the electrical energy to the battery 90 for storage. It is the key to the earphones 100's ability to be used repeatedly and maintain continuous battery life.

[0063] In this embodiment, the charging unit 40 is a wireless charging contact, and the earphone 100 also includes a magnet 50. The charging unit 40 and the magnet 50 are disposed adjacent to each other in the first mounting cavity 111A1 and exposed on the side of the main body 111A. When the earphone 100 needs to be placed in the charging case for charging, the charging case is usually also provided with a corresponding magnet 50. The magnet 50 on the earphone 100 and the magnet 50 in the charging case attract each other, which can automatically attract the earphone 100 to the designated charging position in the charging case. This magnetic cooperation ensures that the charging unit 40 of the earphone 100 can accurately and quickly align with the charging contact or wireless charging coil in the charging case every time, ensuring the reliability of charging and avoiding the difficulty of manual alignment by the user.

[0064] Furthermore, since the charging part 40 and the magnet 50 are located on the periphery of the main body 111A, the skin around the user's ear and the pillow exert pressure on the ear shell 10. If the charging part 40 (typically a metal contact) or the magnet 50 (even a small magnet 50) were located in the pressure area, their hard surfaces could directly press against the skin, causing discomfort or even pain. This design places them on the periphery of the main body 111A, away from the main pressure area, so that when lying on one's side, the user's ear primarily contacts the soft ear wing 20, rather than the hard charging contacts or magnet 50. This significantly reduces pressure and discomfort when lying on one's side, greatly improving wearing comfort.

[0065] Furthermore, the charging unit 40 and the magnet 50 are respectively disposed on opposite sides of the protrusion 112A. By placing the charging-related components (charging unit 40 and magnet 50) on the opposite side, their potential impact on the internal acoustic environment of the protrusion 112A can be reduced. For example, the charging contacts or the magnet 50 may generate minor electromagnetic interference or physical obstruction; their separate placement helps to ensure the purity and accuracy of the microphone 70's sound pickup.

[0066] like Figure 4 As shown, the headphones 100 also include a speaker unit 91, which is the core component for sound playback. It converts electrical signals into sound waves, which vibrate a sound-producing unit (such as a diaphragm) to push air, thereby generating the sound heard by the user. The speaker unit 91 is located in the sound outlet 12 and within the sound outlet channel 12a, which is the main path for sound to travel from the speaker unit 91 to the ear canal. Placing the speaker unit 91 within the sound outlet channel 12a ensures that sound propagates in the most direct way. Furthermore, utilizing this space to house the speaker unit 91 allows for a more compact arrangement of the internal structure, which is beneficial for controlling the overall size of the headphones 100.

[0067] like Figure 8 As shown, the loudspeaker unit 91 includes a housing 911, a magnetic circuit system, and a vibration system. Both the magnetic circuit system and the vibration system are housed within the housing 911. The housing 911 can prevent damage to the magnetic circuit system and the vibration system. The housing 911 can also limit the position of the magnetic circuit system, allowing it to move stably and linearly in the magnetic field. The vibration system includes a voice coil and a diaphragm. The voice coil is the component that drives the diaphragm to vibrate.

[0068] like Figure 3 and Figure 4 As shown, in some embodiments, the main housing 11 includes a front housing 111B and a rear housing 112B that are connected to each other, dividing the main housing 11 into two separable and independently moldable parts, which are then connected by a cover (such as clips, screws, or adhesive) to achieve a good seal. Internal structures (such as an electronic control board 96, a battery 90, etc.) can be installed within the cavity formed by the front housing 111B and the rear housing 112B.

[0069] The rear shell 112B has a flat, cap-like structure, and its main function is to seal the rear of the front shell 111B, thus protecting the delicate electronic components and acoustic structures inside together with the front shell 111B. The front shell 111B is the main part that forms the first mounting cavity 111A1 and the second mounting cavity 112A1, and can house the electronic components and acoustic structures inside the front shell 111B.

[0070] The sound outlet 12 and the rear shell 112B are respectively connected to opposite sides of the front shell 111B along the thickness direction. The sound outlet 12 can be integrally formed with the front shell 111B, reducing connection points and improving structural stability. Furthermore, the front shell 111B and the rear shell 112B together form the main body 111A and the protrusion 112A, ensuring the integrity of the headphone 100's shape and structural stability. The protrusion 112A and the main body 111A are a single unit, making them less prone to deformation or damage during use.

[0071] The front shell 111B includes a front shell ventral surface 111B1 and a front shell side surface 111B2, which are different parts of the outer surface of the front shell 111B. The front shell ventral surface 111B1 is connected to the outer surface of the sound outlet 12, and the front shell side surface 111B2 is connected to the outer surface of the rear shell 112B. The front shell side surface 111B2 extends from the end of the front shell ventral surface 111B1 away from the sound outlet 12 and is bent relative to the front shell ventral surface 111B1. The charging unit 40 and the magnet 50 are both located on the front shell side surface 111B2.

[0072] When the earphone 100 is worn by a user, the surface of the front shell 111B that contacts the ear is mainly the ventral side 111B1. The side surface 111B2 of the front shell, being bent relative to the ventral side 111B1, is less likely to contact the ear. It is understandable that the charging part 40 and the magnet 50 are typically rigid structural components, which can easily cause discomfort to the user when the ear is compressed. This embodiment of the application, by placing the charging part 40 and the magnet 50 on the side surface 111B2 of the front shell, prevents the charging part 40 and the magnet 50 from contacting the ear when the earphone 100 is worn, thus improving the wearing comfort of the earphone 100.

[0073] The ear wing 20 can cover the underside 111B1 and side surface 111B2 of the front shell, and has exposure holes in the areas corresponding to the charging part 40 and the magnet 50, so that the charging part 40 and the magnet 50 can be exposed to the outside through the exposure holes, so that the earphone 100 can cooperate with the charging case when placed in the charging case. The part of the front shell side surface 111B2 where the charging part 40 and the magnet 50 are located protrudes outward, and correspondingly, the charging position of the charging case is also recessed to a certain depth. The protruding charging part 40 on the front shell side surface 111B2 can better match with the corresponding part of the charging case, forming a more stable connection and reducing poor contact caused by shaking.

[0074] Optionally, the front shell side surface 111B2 may be provided with a snap-fit ​​groove 111B3 for snapping the ear wing 20, thereby achieving a stable installation of the ear wing 20 on the front shell 111B. The snap-fit ​​groove 111B3 may be, but is not limited to, an annular groove, and the ear wing 20 may be sleeved on the front shell 111B and snapped into the snap-fit ​​groove 111B3. The snap-fit ​​groove 111B3 may be located at one end of the front shell side surface 111B2 near the rear side to facilitate the installation of the ear wing 20. In other embodiments, the snap-fit ​​groove 111B3 may also be located at other positions on the front shell side surface 111B2.

[0075] Please continue reading. Figure 3 The earphone 100 also includes an antenna 60, which is mounted on the main housing 11. The antenna 60 is a component used by the earphone 100 to achieve wireless communication and can communicate with the outside world via electromagnetic waves under the control of the electronic control board 96. The earphone 100 can transmit signals to the outside world through the antenna 60. When an external device (such as a mobile phone) detects the signal and successfully pairs with it, the earphone 100 can establish a wireless connection with the external device and then transmit data, such as audio data, with the external device.

[0076] The control board 96 is provided with a contact 961 for electrical connection with the antenna 60. Correspondingly, the rear shell 112B is provided with a microhole communicating with the second mounting cavity 112A1. The antenna 60 can be connected to the contact 961 through the microhole. The contact 961 is located inside the second mounting cavity 112A1. The control board 96 is stably supported on the cavity wall of the second mounting cavity 112A1, which ensures the stability of the spatial position and orientation of the contact 961 on the circuit board. The connection position between the antenna 60 and the contact 961 is more fixed and precise, reducing poor contact or signal fluctuations that may be caused by shaking or vibration, thereby improving the long-term reliability of the electrical connection.

[0077] The antenna 60 is disposed on the outer surface of the rear shell 112B away from the front shell 111B. Compared with related technologies, which mount the antenna 60 on the first mounting cavity 111A1 or the second mounting cavity 112A1, this embodiment places the antenna 60 on the outer surface of the rear shell 112B. This reduces the shielding or reflection of wireless signals by internal metal components, plastic cavities, or vibration systems, thereby improving the performance of the antenna 60. There is sufficient vertical space between the antenna 60 and other components, avoiding signal attenuation or damage caused by components being too close together. The antenna 60, mounted on the outer surface of the rear shell 112B, does not occupy the internal space of the earpiece 10, which also facilitates the miniaturization design of the earphone 100.

[0078] Furthermore, when the earphone 100 is worn by the user, the antenna 60 will not come into contact with the user's ear, reducing the pressure on the ear in the side-lying scenario, and also preventing the skin of the ear from absorbing the antenna 60 waves, which is beneficial to improving radio frequency performance.

[0079] Furthermore, to increase the coverage of antenna 60, antenna 60 is located in the middle of rear housing 112B, and the cross-section of rear housing 112B is approximately elliptical. That is, in the geometrically central region of rear housing 112B, antenna 60 extends along its long axis and from the edge of main body 111A to the edge of protrusion 112A. A larger coverage area helps antenna 60 to better transmit and receive signals in different directions and reduces signal dead zones.

[0080] Among them, antenna 60 can be an LDS antenna. LDS antenna technology, short for Laser-Direct-structuring, is a technology that uses a laser to directly form circuit patterns on a housing. This technology uses computer-controlled laser movement to project the laser onto the housing, which can quickly activate the circuit pattern, thereby depositing a metal antenna on the surface of the housing.

[0081] In other embodiments, the antenna 60 of the earphone 100 is not limited to the above design. For example, the antenna 60 can be an FPC antenna, a PCB antenna, a spring antenna, a ceramic patch antenna, etc.

[0082] While the antenna 60 possesses a certain degree of durability, it can still be damaged due to accidental drops, friction, or scratches from other hard objects. To address this issue, in some embodiments, a flexible material layer is provided on the outer wall of the rear shell 112B. This flexible material layer covers the antenna 60 and absorbs and cushions external impacts and friction, protecting the antenna 60 from scratches, abrasions, or impacts. Furthermore, the flexible material layer typically offers a better tactile feel, being softer and warmer, significantly improving the comfort of wearing the headphones and reducing the sensation of foreign objects in the ear.

[0083] Specifically, the flexible material layer can be a silicone layer, a thermoplastic polyurethane layer, or a rubber layer, providing a soft touch.

[0084] like Figure 4 and Figure 8 As shown, in some embodiments, the earphone 100 also includes a feedback microphone 80 disposed within the sound output channel 12a. The feedback microphone 80 differs from the microphone 70 in its pickup position and noise reduction principle. The feedback microphone 80 is located near the user's ear canal or eardrum. Its position allows it to pick up the anti-phase sound waves played by the noise-canceling speaker and the residual noise remaining in the ear canal after noise reduction processing. The digital signal processor adjusts the generation of the anti-phase sound waves in real time based on the residual noise picked up by the feedback microphone to achieve a better noise reduction effect. Its function focuses more on feedback and correction.

[0085] Furthermore, the feedback microphone 80 is positioned on the sound output side of the speaker unit 91. One of the main functions of the feedback microphone 80 is to pick up the sound emitted by the speaker unit 91 and feed it back to the digital signal processor. The digital signal processor cancels out noise by generating a sound wave with the opposite phase to the picked-up sound. Placing the feedback microphone 80 within the sound output channel 12a on the sound output side of the speaker unit 91 means that it can pick up the original sound signal emitted by the speaker most directly and accurately.

[0086] For the voice coil to be energized and move, current must flow into the voice coil and form a complete circuit inside it. Therefore, as... Figure 9 , Figure 10 and Figure 11 As shown, the loudspeaker unit 91 also includes a power-connecting pin 912 exposed in the housing 911. The power-connecting pin 912 guides the external audio current signal to the voice coil of the loudspeaker unit 91, so that the voice coil can generate corresponding mechanical movement in the magnetic field according to the change of the current signal, thereby driving the diaphragm to produce sound. The power-connecting pin 912 can be understood as the voice coil pin, and its function is still to ensure that the voice coil pin can receive current, so that the voice coil can work.

[0087] Compared to related technologies, the speaker unit 91 has a small printed circuit board (PCBA) with pads. Electrical connections are achieved by setting wires. One end of the wire is soldered to the pads of the PCBA, and the other end is soldered to the main control board. Since the PCBA occupies some space, it is more difficult to operate in the small sound output channel 12a.

[0088] In this embodiment, the speaker unit 91 eliminates the need for a PCBA, and the power-on pins 912 are directly exposed on the housing 911. Figure 12 and Figure 13 As shown, in the first configuration, the electrical connector 95 extends from the self-feedback microphone 80 to the power pin 912 and is electrically connected to the power pin 912, and then extends into the mounting cavity 11a to be electrically connected to the control board 96. The electrical connector 95 is an integrally extended flexible circuit board. Figure 10 and Figure 11 As shown, in the second configuration, the electrical connector 95 includes a first electrical connector 951 and a second electrical connector 952. The second electrical connector 952 is electrically connected to the feedback microphone 80 and the electronic control board 96. The first electrical connector 951 is electrically connected to the power pin 912 and is electrically connected to the electronic control board 96 via the second electrical connector 952. Both the first electrical connector 951 and the second electrical connector 952 are flexible circuit boards.

[0089] In both the first and second configurations, the original PCBA of the speaker unit 91 is eliminated, and the power connection pins 912 are directly exposed on the housing 911. The flexible circuit board can be bent and laid out more flexibly. The flexible circuit board is thinner than the PCBA, which frees up more space. The flexibility of the flexible circuit board allows it to adapt to the irregular space inside the ear shell 10, and it can even move partially with the vibration or deformation of the speaker unit 91, reducing the connection stress caused by vibration and further improving the long-term reliability of the connection.

[0090] By eliminating the space inside the speaker unit 91 that was originally used to house the PCBA board and its related solder joints, this redundancy in volume and height is completely eliminated. This not only directly reduces the height profile of the speaker unit 91 itself, making it flatter, but also shortens the axial height of the sound outlet 12, allowing it to be made smaller and reducing its intrusiveness into the ear canal.

[0091] like Figure 12 and Figure 13 As shown, specifically in the first configuration, the flexible circuit board is an integrated extension, requiring fewer connection operations during assembly, reducing assembly difficulty. The integrated design reduces impedance changes and signal loss in the signal transmission path, potentially contributing to improved audio signal transmission efficiency and sound quality. Figure 10 and Figure 11 As shown, in the second configuration, the electrical connector 95 is divided into two parts, allowing the first electrical connector 951 and the second electrical connector 952 to be wired independently according to actual space requirements. The first electrical connector 951 can be placed close to the power pin 912 to reduce signal attenuation, while the second electrical connector 952 can optimize the path to the control board 96. Furthermore, if the feedback microphone 80 or the connection part 922 of the power pin 912 needs to be replaced, only the corresponding flexible circuit board needs to be replaced, without redesigning the entire circuit.

[0092] like Figure 11In some embodiments, a protective adhesive 98 is applied to the connection between the electrical connector 95 and the power pin 912. The protective adhesive 98 is located on the side of the electrical connector 95 facing away from the housing 911. Although the solder joint between the power pin 912 and the electrical connector 95 completes the electrical connection, this connection point may be subjected to stress during daily use of the earphone 100 (such as bending, squeezing, and vibration). After the protective adhesive 98 cures, it firmly bonds the solder joint, the power pin 912, and a portion of the first electrical connector 951 together, forming a single unit. This greatly enhances the mechanical strength of the connection point, preventing cracking of the solder joint or loosening of the pin due to vibration or stress, thereby improving the long-term reliability of the connection. Furthermore, the insulating layer formed after the protective adhesive 98 cures can prevent the solder joint or the power pin 912 from accidentally contacting other conductive parts, avoiding short-circuit faults.

[0093] When the speaker driver 91 is working, the internal diaphragm vibrates back and forth, causing changes in the air pressure inside the cavity. If the cavity were completely sealed, the accumulated air pressure would hinder the diaphragm's vibration, reducing its degree of freedom of movement and thus affecting sound quality. Therefore, the speaker driver 91's housing 911 is also equipped with a speaker tuning port, which effectively balances the air pressure inside and outside the cavity. This design avoids the obstruction of diaphragm movement by air pressure buildup, allowing the diaphragm to vibrate more freely, thereby improving sound clarity and dynamic range.

[0094] Please continue reading. Figure 11 Corresponding to the speaker tuning hole, the electrical connector 95 is also provided with a clearance hole 951a corresponding to the speaker tuning hole, which can avoid the location of the speaker tuning hole, so that the electrical connector 95 can be flexibly arranged near the speaker tuning hole without affecting the function of the speaker tuning hole.

[0095] In some embodiments, the feedback microphone 80 and the speaker unit 91 are arranged at an axial distance along the sound output channel 12a. That is, the sound wave propagation direction and physical installation position of the speaker unit 91 and the feedback microphone 80 are approximately on the same axis, so that the feedback microphone 80 can accurately capture the sound signal generated by the speaker unit 91, thereby achieving more accurate phase compensation in the active noise cancellation system and improving the noise reduction effect, especially in the cancellation of high-frequency noise.

[0096] Furthermore, along the axial direction of the sound outlet channel 12a, the distance between the speaker unit 91 and the feedback microphone 80 is 0.2mm-0.5mm. The sound outlet 12 itself has a relatively small structure. If the distance between them were greater, it would occupy more space along the axial direction of the sound outlet channel 12a, requiring either an increase in the length of the sound outlet 12 or compression of other components, directly leading to an increase in the size of the sound outlet 12 and even the entire earpiece 10. By controlling the distance between them within this extremely small range of 0.2-0.5mm, the axial arrangement efficiency inside the sound outlet 12 is optimized. This allows the speaker unit 91 and the feedback microphone 80 to be arranged compactly, minimizing their space occupation in the axial direction of the sound outlet channel 12a. This compact arrangement allows for a shorter and more compact structure of the sound outlet 12 while maintaining acoustic performance (such as the aforementioned accurate sound pickup).

[0097] like Figure 10 and Figure 11 As shown, in some embodiments, the earphone 100 also includes a protective mesh 92, which is connected to the sound outlet 12 and covers the sound outlet 12b. The protective mesh 92 can prevent foreign objects (such as dust and debris) from entering the ear shell 10 through the sound outlet 12b. The protective mesh 92 is electrically connected to the ground terminal of the electronic control board 96. The feedback microphone 80 is also mounted on the protective mesh 92, using the protective mesh 92 itself as a mounting base. Specifically, it can be fixed to the protective mesh 92 by laser welding, which reduces the additional structures (such as independent brackets, long tubes, etc.) used to fix the microphone and guide the sound in traditional designs, thereby saving internal space.

[0098] Following the above, the feedback microphone 80 is connected to the electronic control board 96 via an electrical connector 95. The electrical connector 95 is used to transmit the audio signal picked up by the feedback microphone 80 to the corresponding signal processing pin on the electronic control board 96.

[0099] In this embodiment, the electrical connector 95 is a flexible circuit board, and the feedback microphone 80 can be directly mounted on the flexible circuit board using surface mount technology, which is suitable for mass production and has high efficiency and high reliability.

[0100] This embodiment integrates multiple components (protective mesh 92, FB MIC, speaker unit 91) and places them directly inside the sound outlet 12. This concentrates these functional modules in a limited space, and the feedback microphone 80 is placed on the protective mesh 92, so that the two are compactly arranged inside the sound outlet 12. This helps to achieve miniaturization of the headphones 100, especially in the space-constrained area of ​​the sound outlet 12, where the microphone and protective structure required for noise reduction can be integrated more effectively without significantly increasing the overall size.

[0101] Because the feedback microphone 80 is located close to the sound outlet 12b, which is the point where the earphone 100 directly contacts the outside world and exchanges air and sound, it is also the part most susceptible to static electricity. When a user accidentally touches the sound outlet 12b with a static-charged finger or other object, the static electricity will directly affect the feedback microphone. The feedback microphone 80 is a miniature microphone, and its internal sensitive components (such as the diaphragm and amplification circuit) are very sensitive to static electricity. Even a small static shock can cause the feedback microphone 80 to degrade in performance or even fail completely.

[0102] Therefore, in this embodiment, the protective mesh 92 is electrically connected to the grounding terminal of the electronic control board 96. The protective mesh 92 can be made of metal or conductive material, which can effectively conduct electrostatic charges. That is, as a conductive material (such as a metal mesh or plating), the protective mesh 92 can collect electrostatic charges and conduct them to the grounding terminal of the electronic control board 96. This grounding design guides the electrostatic charge acting on the protective mesh 92 to a safe grounding terminal, thereby preventing electrostatic discharge from directly acting on or damaging the feedback microphone 80 located on the protective mesh 92, effectively preventing damage to the microphone device. This improves the anti-static performance of the headset 100 and the overall service life of the product.

[0103] Furthermore, once the protective mesh 92 is grounded, it forms an effective electromagnetic shielding layer, reducing interference from external electromagnetic waves to the internal circuitry. This is particularly important for the feedback microphone 80, as the microphone needs to accurately capture ambient noise, and electromagnetic interference can lead to a decrease in noise reduction performance.

[0104] Specifically, the protective mesh 92 is a protective steel mesh. This steel mesh possesses high strength and toughness, effectively preventing damage caused by vibration, external impact, or accidental collisions during daily use, ensuring its stability and durability over long-term use. Furthermore, the protective steel mesh has good conductivity, effectively conducting static electricity and reducing the direct impact of static electricity on the feedback microphone 80.

[0105] In this embodiment, the protective mesh 92 is grounded to the grounding terminal of the control board 96 via an electrical connector 95. Static electricity first acts on the protective mesh 92, and the protective mesh 92 itself or its conductive parts become the initial contact point or induction point of the static electricity. The protective mesh 92 is connected to the control board 96 inside the earphone 100 via a pre-designed electrical connector 95. The charge flows through the electrical connector 95 and finally reaches the grounding terminal on the control board 96 (which typically contains critical circuits such as processing chips, power management, and amplifiers). The static electricity is effectively guided to a safe area, preventing the accumulation of static electricity to a level sufficient to damage the feedback microphone 80, which is extremely sensitive to static electricity, thereby protecting the feedback microphone 80 from electrostatic damage.

[0106] This avoids the need for additional connection paths or structures for grounding, saving space, especially in areas like the sound outlet 12 where space is often limited.

[0107] like Figure 10 and Figure 11 As shown, in some embodiments, the headphone 100 further includes a reinforcing plate 94, which is disposed within the sound outlet channel 12a and connected to the protective net 92. The feedback microphone 80 is disposed on the reinforcing plate 94, which provides additional support for the feedback microphone 80 and can effectively prevent the feedback microphone 80 from shifting or being damaged due to mechanical vibration or external force during the use of the headphone 100.

[0108] In practical applications, electrical connections are typically achieved through welding. If the electrical connector 95 is directly welded to the protective mesh 92, the thinness and softness of the protective mesh 92 may cause cracks to easily appear at the solder joints during the welding process or during use, a phenomenon known as "solder cracking." This solder cracking can compromise the stability of the electrical connection and affect the performance and reliability of the earphone 100.

[0109] Therefore, in this embodiment, the reinforcing plate 94 is electrically connected to the electrical connector 95, and the reinforcing plate 94 supports the portion of the electrical connector 95 where the feedback microphone 80 is located. The reinforcing plate 94 can be made of a harder metal, providing stronger support than the protective mesh 92. During the welding process, the stress on the solder joint (solder point) is dispersed, reducing the risk of cracks caused by stress concentration. This ensures the stability of the entire internal structure of the sound outlet 12 during use and reduces damage caused by mechanical vibration or external forces.

[0110] Furthermore, the reinforcing plate 94 is electrically connected to the electrical connector 95 to ground the protective net 92 to the grounding terminal of the control board 96. In other words, the reinforcing plate 94 not only provides mechanical support for the protective net 92 but also serves to conduct static electricity. Static electricity is generated and conducted to the protective net 92 of the earphone 100. Subsequently, the static electricity is conducted through the protective net 92 to the reinforcing plate 94, and then from the reinforcing plate 94 to the electrical connector 95. Next, the electrical connector 95 conducts the static electricity to the grounding terminal of the control board 96, and through the grounding terminal, the static electricity is discharged to the electrostatic discharge protection circuit on the control board 96.

[0111] Furthermore, the feedback microphone 80 is positioned on the side of the reinforcing plate 94 facing the protective net 92. On the one hand, this makes full use of the space between the reinforcing plate 94 and the protective net 92, avoiding structural conflicts or excessive space occupation due to improper positioning of the feedback microphone 80, and further optimizing the compact design of the headphone 100. On the other hand, positioning it on the side of the reinforcing plate 94 facing the protective net 92 ensures that the feedback microphone 80 is closer to the sound source (such as the ear canal), thereby improving the accuracy and sensitivity of signal acquisition.

[0112] Specifically, the reinforcing plate 94 is made of stainless steel. Stainless steel has excellent corrosion resistance, effectively resisting the erosion of sweat, moisture, and other corrosive substances during daily use, extending the service life of the reinforcing plate 94, and ensuring its long-term stable performance in supporting and conducting electricity. Furthermore, stainless steel has good electrical conductivity, effectively conducting static electricity and quickly dissipating it, thus improving the electrostatic protection capability of the earphone 100.

[0113] Furthermore, the thickness of the stainless steel sheet can be 0.1cm-0.2cm. If the thickness is less than 0.1cm, the strength of the stainless steel sheet will decrease, making it prone to bending, deformation, or even damage during use. If the thickness is greater than 0.2cm, the weight and material cost of the stainless steel sheet will increase, and excessively thick stainless steel sheets are not conducive to the miniaturization and slimming design of the Headphone 100. A thickness between 0.1cm and 0.2cm is a balance point, ensuring sufficient strength and protective performance without causing processing, assembly, or cost problems due to excessive thickness or thinness.

[0114] like Figure 14 As shown, in some embodiments, a limiting groove 12c is provided on the inner wall of the sound outlet 12a near the sound outlet hole 12b. The limiting groove 12c is annular and provides a precise installation position. The protective net 92 is embedded in the limiting groove 12c and connected to the groove wall of the limiting groove 12c. Specifically, the protective net 92 can be connected to the groove wall of the limiting groove 12c by adhesive, so that the protective net 92 is firmly fixed to the sound outlet 12 and will not easily move, tilt or fall off. It also improves the ability of the protective net 92 to resist external impacts (such as accidental scratches by the user). Even if subjected to a certain external force, the protective net 92 is not easily damaged or deformed, improving the durability of the product.

[0115] like Figure 14 and Figure 15As shown, the protective net 92 further includes a protective portion 921 and a connecting portion 922. The protective portion 921 is mesh-shaped and covers the sound outlet 12b. Understandably, the mesh structure of the protective portion 921 allows sound to pass smoothly, ensuring that sound can be transmitted from the inside to the user's ear canal, while allowing the feedback microphone 80 to collect external sound. The connecting portion 922 is disposed around the edge of the protective portion 921. The connecting portion 922 extends from the connection point with the protective portion 921 toward the side opposite to the sound outlet 12b. The connecting portion 922 can be in the form of continuous and uniform serrations. This design not only increases the contact area between the connecting portion 922 and the groove wall of the limiting groove 12c, but also disperses stress through its unique shape, so that when the protective net 92 is subjected to external force or vibration, the stress can be evenly distributed, avoiding damage caused by local stress concentration. The connecting part 922 is connected to the circumferential direction of the protective part 921 and is connected to the groove wall of the limiting groove 12c. As described above, the protective net 92 is bonded to the groove wall of the limiting groove 12c through the connecting part 922, so that the protective net 92 can make multi-point and uniform contact and connection with the limiting groove 12c, and the fixation is more secure.

[0116] like Figure 14 and Figure 15 As shown, specifically, the connecting part 922 includes a flange 9221 connected to the protective part 921. The flange 9221 is circumferentially disposed around the protective part 921 and extends toward the side opposite to the sound outlet 12b. The flange 9221 has a plurality of serrations evenly and spaced along its circumference. The serrated structure increases the contact area and friction between the flange 9221 and the groove wall of the limiting groove 12c. Furthermore, the serrated structure and the groove wall of the limiting groove 12c form a locking effect, which can more firmly lock the flange onto the groove wall and prevent the protective net 92 from loosening, falling off, or rotating due to vibration, external force, or minor displacement during use. Compared to the smooth flange 9221, the serrations provide a stronger locking force.

[0117] like Figure 14 and Figure 15As shown, the protective net 92 also includes a support portion 923, which extends from the connecting portion 922 toward the main housing 11 within the sound outlet channel 12a. The end of the support portion 923 away from the connecting portion 922 bends toward the center of the centerline of the sound outlet hole 12b. A reinforcing plate 94 is disposed on the support portion 923. Understandably, the reinforcing plate 94 and the protective portion 921 are spaced apart along the axial direction of the sound outlet channel 12a. The portion connecting the support portion 923 and the reinforcing plate 94 is parallel to the protective portion 921. Therefore, the support portion 923 as a whole resembles a structure that starts from the connecting portion 922, extends approximately axially, then bends inward (towards the center), and finally provides a plane parallel to the reinforcing plate 94. This provides an ideal and stable attachment base for the reinforcing plate 94. This parallel design ensures that the reinforcing plate 94 can evenly distribute stress and work better with the support portion 923 and even the entire protective net 92, maximizing the reinforcement effect.

[0118] like Figure 14 and Figure 15 As shown, specifically, the support portion 923 includes two support feet 9231 arranged radially opposite to each other along the protective portion 921. Correspondingly, the reinforcing plate 94 includes a connecting sub-plate 941 and two support sub-plates 942. The connecting sub-plate 941 is electrically connected to the electrical connector 95 and is supported on the feedback microphone 80. The feedback microphone 80 is connected to the side of the reinforcing plate 94 facing the protective portion 921. The two support sub-plates 942 are respectively connected to both ends of the connecting sub-plate 941 and extend to both sides to connect with the two support feet 9231. The relative arrangement of the two support feet 9231 and the two support sub-plates 942 forms a stable support structure, which effectively prevents the reinforcing plate 94 from shifting or tilting due to vibration or external force during use, and improves the stability of the internal structure of the sound outlet 12.

[0119] To further improve the stability of the support 923, the sound outlet 12 is provided with a positioning groove 12d on the inner wall of the sound outlet channel 12a, which connects to the limiting groove 12c. Part of the structure of the support 923 is engaged in the positioning groove 12d, which can improve the fixing accuracy between the support 923 and the inner wall of the sound outlet 12, ensuring that the support 923 will not shift during installation, thereby ensuring the assembly accuracy of the entire component. Moreover, the positioning groove 12d provides a clear installation position for the support 923, which can reduce quality problems caused by improper assembly.

[0120] Following the above, corresponding to the two support feet 9231, two positioning grooves 12d are also configured. The two positioning grooves 12d are arranged radially opposite each other. If the protective net 92 attempts to rotate around the center of the sound outlet 12b, the portion of the support part 923 that is stuck in the positioning groove 12d will form an obstruction. Therefore, the protective net 92 cannot rotate freely within the limiting groove 12c, causing the protective net 92 to be stuck in a specific position in the limiting groove 12c.

[0121] Correspondingly, the protective net 92 is connected to the reinforcing plate 94 through the support part 923. The reinforcing plate 94 cannot rotate within the sound outlet channel 12a, and the electrical connector 95 connected to it can also remain relatively fixed, avoiding damage, breakage or performance degradation of the electrical connector 95 due to repeated twisting or accidental rotation, thus improving the reliability of the connection.

[0122] It should be noted that the positioning groove 12d has a guiding slope. The guiding slope is inclined in a direction away from the central axis of the sound outlet channel 12a and close to the sound outlet hole 12b. When the support part 923 needs to be inserted into the positioning groove 12d, the support part 923 first contacts the far end of the guiding slope. Since the slope is a guiding slope, the support part 923 can be "guided" or "pushed" along this slope to the deeper end of the positioning groove 12d. In this way, the support part 923 can slide in more easily and smoothly and finally be locked in the predetermined position of the positioning groove 12d.

[0123] like Figure 12 and Figure 13 As shown, the feedback microphone 80 may not be supported by the protective mesh 92. In some embodiments, the speaker unit 91 also includes a support frame 913 connected to the housing 911. The support frame 913 is located on the sound output side of the speaker unit 91 and extends towards the sound outlet 12b. The feedback microphone 80 is mounted on the support frame 913, making its position very close to the sound source (speaker diaphragm). As mentioned earlier, being close to the sound output side of the speaker unit 91 helps to accurately pick up the speaker signal, optimize the active noise cancellation effect, and suppress feedback. Furthermore, integrating the feedback microphone 80 directly onto the speaker unit 91 improves the integration of the components. This is particularly advantageous for the design of the headphone 100, which aims for miniaturization and lightweighting, allowing for a more rational layout of various components within a limited space.

[0124] Specifically, two support frames 913 are provided, arranged radially opposite to each other along the outer shell 911. Each support frame 913 includes a connected support arm 9131 and a limiting arm 9132. The support arm 9131 is connected to the outer shell 911 and extends towards the sound outlet 12b. The limiting arm 9132 has a support groove 9132a. The two support sub-plates 942 of the reinforcing plate 94 can overlap in the two support grooves 9132a respectively. The feedback microphone 80 is mounted on the reinforcing plate 94 instead of directly on the support frame 913, which can better distribute the weight of the feedback microphone 80 and the possible minor vibrations, preventing the support frame 913 from deforming or being damaged due to long-term stress or vibration. The two support frames 913 can more evenly distribute the weight of the reinforcing plate 94 and the feedback microphone 80, improving the stability and deformation resistance of the overall structure.

[0125] The feedback microphone 80 is located on the side of the reinforcing plate 94 facing the speaker unit 91, which can make full use of the space between the two support arms 9131, making the structural arrangement inside the sound outlet 12 more compact and shortening the axial length of the sound outlet 12.

[0126] like Figure 14 As shown, in some embodiments, the headphone 100 further includes a second tuning mesh 972, which is connected to the inner side of the protective mesh 92 and covers the perforated holes 92a on the protective mesh 92. The size and dimensions of the protective mesh 92 are adapted to the second tuning mesh 972, covering the side of the protective mesh 92 near the feedback microphone 80. Understandably, the main function of the second tuning mesh 972 is to further block dust and fine particles from entering the headphone 100, protect the internal feedback microphone 80 and speaker unit 91, reduce the risk of failure caused by dust accumulation or foreign object entry, and extend the service life of the headphone 100.

[0127] Understandably, the perforations 92a of the protective mesh 92 are larger than those of the second tuning mesh 972. The main function of the protective mesh 92 is to prevent larger foreign objects from entering the headphone 100, and it also has a certain mechanical strength to withstand a certain amount of external impact. The second tuning mesh 972 has several smaller perforations, providing more detailed protection. The combination of the protective mesh 92 and the second tuning mesh 972 provides multi-layered protection, ensuring that the internal components of the headphone 100 are adequately protected in various usage scenarios. The protective mesh 92 blocks larger foreign objects and liquids, while the second tuning mesh 972 further blocks dust and fine particles. This multi-layered protection design effectively reduces the risk of malfunctions caused by the ingress of dust and foreign objects.

[0128] The second tuning mesh 972 can be made of non-woven fabric, nylon mesh, or polyester fiber mesh, which has good breathability and dustproof effect, while allowing sound to pass through.

[0129] Furthermore, the protective net 92 and the flexible circuit board encapsulating the feedback microphone 80 are modularly processed, that is, uniformly processed and assembled. The three are integrated in the early stage of manufacturing, so that they do not need to be installed one by one when assembling the headphone 100. This reduces the complexity and time of subsequent assembly and simplifies the subsequent assembly process.

[0130] like Figures 1-3As shown, in some embodiments, the earphone 100 further includes an ear cap 30, which is sleeved on the sound outlet 12. The ear cap 30 has a through hole 30b that is disposed opposite to the sound outlet 12b. The sound outlet 12 has an annular protrusion 121, and the ear cap 30 has an annular recess 31 that corresponds to the annular protrusion 121. The ear cap 30 is secured on the sound outlet 12 by the cooperation of the annular protrusion 121 and the annular recess 31, which can effectively fix the ear cap 30 on the sound outlet 12 and prevent the ear cap 30 from accidentally falling off or shifting during use (such as during exercise or head shaking).

[0131] The ear tips 30 are typically made of soft materials such as silicone. The soft ear tips 30 provide a more comfortable wearing experience and reduce direct irritation to the ear canal. Different sizes of ear tips 30 can adapt to different users' ear canal sizes, further improving comfort and fit.

[0132] When the earphone 100 is worn by the user, the ear cap 30 fits tightly with the human ear, creating a pressure difference between the inside and outside of the ear. This pressure difference may impact the eardrum, causing discomfort. Furthermore, the pressure may also impact the components inside the sound outlet 12, potentially causing damage, such as deformation of the diaphragm of the speaker unit 91, which could negatively affect the sound quality of the earphone 100.

[0133] To address the aforementioned issues, the inner wall of the ear cap 30 has a pressure relief groove 30a, and the outer walls of the sound outlet 12 and the main body 111A have a pressure relief channel 10a communicating with the pressure relief groove 30a. The pressure relief channel 10a extends axially along the sound outlet 12 and passes through the annular protrusion 121, extending to the portion of the front shell side 111B2 where the charging part 40 is located. Understandably, the pressure relief channel 10a communicates with the outside. Understandably, when there is a difference in air pressure between the inside and outside, the air in the ear canal can enter the pressure relief groove 30a through the through hole 30b and begin to flow outward, communicating with the outside along the pressure relief channel 10a on the sound outlet 12 and the main body 111A, thereby reducing wearing fatigue or discomfort caused by air pressure issues.

[0134] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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 accompanying 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.

[0135] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0136] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0137] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0138] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An earphone, characterized by comprising: include: The ear shell includes a main shell and a sound outlet. The main shell includes a main body and a protrusion. The sound outlet is connected to the main body. The protrusion protrudes from one side of the main body and is spaced apart from the sound outlet. The protrusion is configured to be located on the outside of the user's helix when the earphone is worn by the user and extends toward the user's antihelix. and The microphone is at least partially located within the protrusion; The surface of the protrusion facing the sound outlet is provided with a pickup hole corresponding to the microphone.

2. The earphone of claim 1, wherein The main body is provided with a first mounting cavity, and the protrusion is provided with a second mounting cavity that communicates with the first mounting cavity; The earphone also includes an electronic control board, part of which is located in the first mounting cavity and the other part extends into the second mounting cavity, and the microphone is mounted on the electronic control board.

3. The earphone of claim 2, wherein The electronic control board is provided with a sound passage, which is connected to the pickup hole, and the microphone is installed on the part of the electronic control board with the sound passage.

4. The earphone of claim 3, wherein It also includes a mesh fabric, which is connected to the inside of the protrusion and covers the periphery of the pickup hole.

5. The earphone of claim 2, wherein Also includes the ear wings; The ear wing includes a fixed sleeve and a supporting part connected to each other. The fixed sleeve is sleeved outside the main body. The supporting part protrudes from the fixed sleeve on the side away from the sound outlet and is located on the side of the protrusion facing the sound outlet. The supporting part is configured to elastically abut against the user's antihelix when the earphone is worn by the user.

6. The earphone of claim 5, wherein The protrusions and the supporting portions are arranged at intervals along the thickness direction of the main body.

7. The earphone of claim 5, wherein Along the thickness direction of the main body, the orthographic projection of the protrusion overlaps with the orthographic projection of the abutment.

8. The earphone of claim 5, wherein Along the thickness direction of the main body, the orthographic projection of the pickup hole is adjacent to the edge of the orthographic projection of the abutment, and along the thickness direction of the main body, the orthographic projection of the pickup hole and the orthographic projection of the abutment do not overlap.

9. The earphone of claim 2, wherein It also includes a battery, a charging unit, and a magnet; The battery is disposed in the first mounting cavity and is electrically connected to the electronic control board; the charging unit is used to charge the battery. The charging part and the magnet are arranged adjacent to each other and are both exposed on the side of the main body. The charging part and the magnet are respectively arranged on the opposite sides of the main body.

10. The earphone of claim 2, wherein The surface of the protrusion facing the sound outlet is also provided with a tuning hole, which is connected to the second mounting cavity.

11. The earphone according to any one of claims 1 to 10, wherein The main housing includes a front shell and a rear shell that are connected to each other. The sound outlet and the rear shell are respectively connected to opposite sides of the front shell along the thickness direction. The earphone also includes an antenna, which is disposed on the surface of the rear shell away from the front shell.

12. The earphone of claim 11, wherein The antenna is located in the middle of the rear housing and extends from the edge of the main body to the edge of the protrusion.

13. The earphone of claim 11, wherein A flexible material layer is also provided on the outer wall surface of the rear shell, and the flexible material layer covers the antenna.

14. The earphone according to any one of claims 2 to 10, wherein The sound outlet has a sound outlet channel and a sound outlet hole communicating with the sound outlet channel, and the sound outlet channel is communicating with the first mounting cavity; The headphones also include a speaker unit and a feedback microphone disposed in the sound output channel, wherein the feedback microphone is disposed on the sound output side of the speaker unit.

15. The earphone of claim 14, wherein The feedback microphone and the speaker unit are arranged at intervals along the axial direction of the sound output channel.

16. The earphone of claim 1, wherein The outer edge of the protrusion is smoothly connected to the outer edge of the main body.

17. The earphone of claim 1, wherein The central axis of the pickup hole is set at an angle to the central axis of the main body.

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