A Bluetooth headset and its charging case

Abstract

This utility model discloses a Bluetooth headset and its charging case, including a headset body. The headset body includes a headset shell and a silicone plug located below the headset shell. The headset shell includes a circular wearing part, an extension part, and a connecting post. This utility model headset, by adopting an elliptical circular wearing part and a naturally converging extension part design, combined with the insertion and cooperation of the connecting post and the silicone plug, effectively enhances the tightness and wearing comfort of the Bluetooth headset. The elliptical wearing part conforms to the shape of the ear, reducing the risk of loosening, while the arc-shaped upward extension of the extension part and the inner and outer gel structure of the silicone plug provide cushioning and stable support, thereby preventing it from falling off during exercise or daily use. At the same time, it reduces the overall size, improving the user's convenience and comfort. The charging case improves the grip comfort and the smoothness of taking it out and putting it in, while the snap-fit ​​design between the inner part and the outer shell of the charging case facilitates maintenance and cleaning.

Description

Technical Field

[0001] This utility model relates to the field of Bluetooth headset technology, specifically to a Bluetooth headset and its charging case. Background Technology

[0002] Bluetooth headphones are audio devices based on Bluetooth wireless communication technology. They pair with audio source devices via short-range wireless connections to achieve cable-free transmission and playback of audio signals. Their core components include a driver unit (dynamic, balanced armature, or hybrid driver for electroacoustic conversion), a built-in battery (providing power), a Bluetooth chipset (handling wireless signal encoding, decoding, and transmission, supporting audio encoding formats such as SBC, AAC, aptX, and LDAC), a microphone array (for call pickup and ambient sound acquisition), and a matching charging circuit and shell structure. Modern Bluetooth headphones generally feature active noise cancellation (using microphones to pick up ambient noise and cancel it out by generating inverse sound waves), ambient sound mode (selectively amplifying external sounds), low latency mode (optimizing audio-visual synchronization), multi-device connectivity, touch operation, and voice assistant activation. In terms of form factors, they mainly include true wireless stereo headphones (TWS, with independent left and right earbuds), neckband headphones, and over-ear headphones. They are widely used in daily communication, music appreciation, audio-visual entertainment, online meetings, sports and fitness, language learning, and other scenarios, greatly enhancing the freedom, convenience, and immersion of users' mobile audio experience, and have become an indispensable portable smart accessory in modern digital life.

[0003] As described in the published patent CN209545809U, "An In-Ear Wireless Bluetooth Headphone," existing wireless Bluetooth headphones mainly include in-ear, ear-hook, and over-ear types. Among them, in-ear headphones, inserted into the ear, isolate external noise, ensuring clear listening to the sound played through the headphones and preventing external interference, making them increasingly popular with users. However, these in-ear headphones are generally quite large, have poor stability during wear, and are prone to falling out. Their large size also leads to inconvenience and discomfort for users.

[0004] In summary, some in-ear Bluetooth headphones in the prior art have the problem of poor fastening. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution for Bluetooth earphones and earphone charging cases that can solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A Bluetooth headset includes a headset body, the headset body including a headset shell and a silicone soft plug disposed below the headset shell, the headset shell including a circular wearing part, an extension part and a docking post;

[0008] The circular wearing part includes an upper wearing shell and a lower wearing shell that are fastened together, and the upper wearing shell and the lower wearing shell are elliptical in shape.

[0009] The extension includes an upper extension connected to the upper end face of the lower housing and a lower extension connected to the lower end face of the lower housing. The upper extension is inclined upward from the docking post and connected to the edge of the upper end face of the lower housing. The lower extension extends upward from the docking post in an arc shape to 2 / 3 of the lower end face of the lower housing.

[0010] The cross-section of the docking post is elliptical. The upper and lower extensions naturally converge and are integrally formed with the upper end of the docking post. The lower end of the docking post is inserted and fitted with a silicone soft plug.

[0011] The silicone plug includes an outer layer that fits against the user's ear canal and an inner layer that fits into the outer layer and engages with a mating post.

[0012] As a further embodiment of this invention: the outer colloid includes a bowl-shaped colloid, and an elliptical first sound outlet is provided at the lower end of the bowl-shaped colloid.

[0013] The inner layer colloid includes a tubular colloid, which includes a vertical tube section and an inclined tube section connected to the lower end of the vertical tube. The upper end of the vertical tube section is inserted into a docking post, and the lower end of the inclined tube section is fixedly connected to the inner wall of the bowl-shaped colloid. A second sound outlet with the same shape as the sound outlet extends downward from the connection between the inclined tube section and the bowl-shaped colloid.

[0014] As a further embodiment of the present invention: the inner wall of the tubular colloid is formed with a first snap-fit ​​ring and a second snap-fit ​​ring, and the outer wall of the docking post is formed with a third snap-fit ​​ring that engages with the first snap-fit ​​ring and the second snap-fit ​​ring.

[0015] The first snap ring has a downward through-hole limiting groove, and the docking post has a limiting block formed in the limiting groove for limiting and snapping engagement.

[0016] An earphone charging case, applicable to the aforementioned Bluetooth earphones, includes a case body and a top cover disposed on the case body;

[0017] The compartment component includes a compartment shell and an inner support component that is fastened inside the compartment shell;

[0018] The outer shell of the compartment is circular.

[0019] The upper end face of the inner support is provided with a recessed receiving groove for accommodating the headphone body. The receiving groove includes a first arc-shaped groove and a second arc-shaped groove disposed on the lower end face of the first arc-shaped groove.

[0020] The first arc-shaped groove is bent downward from the upper end of the inner support. A raised arc-shaped dividing block is provided in the middle of the first arc-shaped groove, which divides the first arc-shaped groove into an independent left arc-shaped groove and a right arc-shaped groove. The inner bottom surfaces of the left arc-shaped groove and the right arc-shaped groove are respectively provided with conductive PIN pin groups.

[0021] As a further embodiment of this utility model: the second arc-shaped groove is heart-shaped, and the edge of the inner support extends into the side wall of the second arc-shaped groove with an arc-shaped protrusion, the arc-shaped protrusion and the arc-shaped partition block being centrally aligned and matched.

[0022] As a further embodiment of this utility model: the inner bottom surfaces of the first arc-shaped groove and the second arc-shaped groove are respectively arranged in a crescent shape, and the conductive PIN pin group includes a left PIN pin and a right PIN pin arranged symmetrically in the center on the left and right.

[0023] As a further embodiment of this utility model: the rear end of the inner support is provided with a rotating connecting groove, the rear end of the outer shell of the compartment is provided with a rotating mounting groove that aligns with the rotating connecting groove, rotating connecting arms are fixed on both sides of the rotating connecting groove, rotating connecting holes are provided on the rotating connecting arms, and a rotating connecting block is fixed on the rear end of the upper cover, and a rotating shaft is provided on the rotating connecting block that rotates and engages in the rotating connecting hole, and the rotating connecting block rotates and engages in the rotating mounting groove.

[0024] The inner bottom surface of the inner support is fixedly provided with a limiting block that aligns with the rotating connecting groove. The side of the limiting block facing the rotating connecting groove is provided with a relief groove. The inner bottom surface of the relief groove is in limiting abutment with the lower end of the rotating connecting block. The inner bottom surface of the relief groove is fixedly provided with a limiting post that aligns with the lower end of the rotating connecting block.

[0025] As a further embodiment of this utility model: the inner bottom surface of the outer shell of the chamber is fixedly provided with a lever arm support member that is aligned and cooperates with the rotating connecting arm, and the lever arm support member is provided with a supporting arc-shaped surface that is adapted to the end contour of the rotating connecting arm.

[0026] Alignment connectors are fixedly provided on both sides of the lever arm support, and alignment connectors are fixedly provided on the inner bottom surface of the inner support for insertion into the alignment connectors.

[0027] As a further embodiment of this utility model: a fastening member is fixedly provided on the inner wall of the outer shell of the hopper, and a buckle is fixedly provided at the lower end of the inner support member to engage with the fastening member.

[0028] As a further embodiment of this utility model: a charging port is provided on the outer shell of the compartment below the rotating connecting groove, and a button port is provided on one side of the charging port.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] This new type of earphone features an oval-shaped wearing part and a naturally tapering extension part. Combined with the insertion of the docking post and the silicone soft plug, it effectively enhances the secure fit and wearing comfort of the Bluetooth earphone. The oval-shaped wearing part conforms to the shape of the ear, reducing the risk of loosening, while the arc-shaped upward extension part and the inner and outer layers of the silicone soft plug provide cushioning and stable support, thus preventing it from falling off during exercise or daily use. At the same time, it reduces the overall size and improves the user's convenience and comfort. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural view of the headphone body in this utility model;

[0032] Figure 2 This is a three-dimensional structural view of the earphone shell in this utility model;

[0033] Figure 3 This is a three-dimensional structural view of the silicone soft stopper in this utility model;

[0034] Figure 4 This is a top view of the silicone soft plug in this utility model;

[0035] Figure 5 yes Figure 4 A cross-sectional view along the AA direction;

[0036] Figure 6 This is a three-dimensional structural view of the charging compartment in this utility model;

[0037] Figure 7 This is another three-dimensional view of the charging compartment in this utility model;

[0038] Figure 8 This is a three-dimensional structural view of the earphone body and the housing component in this utility model;

[0039] Figure 9 This is a three-dimensional structural view of the compartment body component of this utility model;

[0040] Figure 10 This is another three-dimensional view of the compartment body component in this utility model;

[0041] Figure 11 This is an exploded view of this utility model;

[0042] Figure 12 This is another exploded view of this utility model;

[0043] Figure 13 This is another exploded view of this utility model;

[0044] The reference numerals and names in the figure are as follows:

[0045] Earphone body - 100, Earphone shell - 101, Silicone soft ear tip - 102, Circular wearing part - 103, Extension part - 104, Connecting post - 105, Upper wearing shell - 106, Lower wearing shell - 107, Upper extension part - 108, Lower extension part - 109, Outer gel layer - 110, Inner gel layer - 111, Bowl-shaped gel layer - 112, First sound outlet - 113, Tubular gel layer - 114, Vertical tube section - 115, Angled tube section - 116, Second sound outlet - 117, First locking ring - 118, Second locking ring - 119, Third locking ring - 120, Limiting groove - 121, Limiting block - 122, Housing part - 123, Top cover part - 124, Housing shell - 125, Inner tray part - 126 Receiving slot-127, first arc-shaped slot-128, second arc-shaped slot-129, arc-shaped separator block-130, left arc-shaped slot-131, right arc-shaped slot-132, conductive PIN pin group-133, arc-shaped protrusion-134, left PIN pin-135, right PIN pin-136, rotating connection slot-137, rotating mounting slot-138, rotating connection arm-139, rotating connection hole-140, rotating connection block-141, rotating shaft-142, clearance slot-143, limiting post-144, lever arm support-145, supporting arc-shaped surface-146, alignment insertion tube-147, alignment insertion post-148, fastener-149, buckle-150, charging port-151, button port-152. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] Please see Figure 1-13 A Bluetooth headset includes a headset body 100, the headset body 100 includes a headset shell 101 and a silicone soft plug 102 disposed below the headset shell 101, the headset shell 101 includes a circular wearing part 103, an extension part 104 and a docking post 105;

[0048] The circular wearing part 103 includes an upper wearing shell 106 and a lower wearing shell 107 that are fastened together, and the upper wearing shell 106 and the lower wearing shell 107 are arranged in an elliptical shape.

[0049] The extension 104 includes an upper extension 108 connected to the upper end face of the lower housing 107 and a lower extension 109 connected to the lower end face of the lower housing 107. The upper extension 108 is inclined upward from the docking post 105 and connected to the edge of the upper end face of the lower housing 107. The lower extension 109 extends upward from the docking post 105 in an arc shape to 2 / 3 of the lower end face of the lower housing 107.

[0050] The cross-section of the docking post 105 is elliptical. The upper extension 108 and the lower extension 109 naturally converge and are integrally formed with the upper end of the docking post 105. The lower end of the docking post 105 is inserted into the silicone soft plug 102.

[0051] The silicone soft plug 102 includes an outer layer of gel 110 that abuts against the user's ear canal and an inner layer of gel 111 disposed inside the outer layer of gel 110 and inserted into the docking post 105.

[0052] The long and short axis design more accurately simulates the non-circular contour of the concha of the human ear. Compared with the traditional circular design, it significantly increases the contact area and fit with the auricle, provides a more uniform force distribution, and effectively resists the tendency of the headphones to rotate and slip due to gravity or head shaking.

[0053] The upper extension 108 (connected at an upward angle) extends upward from the docking post 105 and connects to the edge of the upper surface of the wearing lower shell 107 to form an upward support structure that can naturally rest against the antihelix or the crus of the helix on the upper part of the auricle, using the natural depression of the upper part of the auricle as an anchor point to provide a support point to prevent it from falling off.

[0054] The lower extension 109 (extending upward in an arc shape) extends upward from the docking post 105 to 2 / 3 of the lower end face of the wearing lower shell 107. Its arc trajectory and upward tilt angle cleverly conform to the anatomical structure of the tragus and the lower edge of the concha cavity. This design allows the end of the extension 104 to sit stably or gently rest on the area behind the tragus, forming a second important support point. Together with the upper extension 108, it forms a stable "two-point positioning" system, which greatly limits the displacement of the earphone in the vertical and horizontal directions.

[0055] The oval docking post 105 and the inner layer of the silicone soft plug 102 are fitted together in the socket, which has an anti-rotation function to prevent the earphone from accidentally twisting and loosening in the ear canal.

[0056] The upper and lower extensions 109 converge naturally and are integrally formed with the upper end of the connecting column 105, eliminating connection gaps, ensuring structural strength and integrity, and making force transmission smoother;

[0057] The inner layer of colloid 111 (hard / relatively hard) forms a tight and stable plug-in fit with the elliptical docking post 105, ensuring the positional stability of the earphone body during wearing;

[0058] The outer layer of colloid 110 (soft) directly contacts the skin of the ear canal, providing the necessary softness and friction to absorb and disperse external impacts (such as movement bumps, accidental touches) and the slight displacement force brought about by the temporomandibular joint movement when the wearer chews and speaks. This prevents these forces from being directly transmitted to the main body of the earphone, causing discomfort or loosening. The soft material can better adapt to the subtle differences in the ear canals of different users, forming a good physical sound insulation seal. At the same time, its elastic deformation characteristics can generate a restoring force after being squeezed, further enhancing the "wedge" effect in the ear canal.

[0059] The precise anchoring (two-point positioning) of the above-mentioned geometric configuration, combined with the buffering and adaptive wedging effect of the double-layer silicone plug, allows the headphones to be securely worn even during vigorous exercise (such as running or fitness) or large head movements, effectively solving the core pain points of poor fastness and easy fall-off in existing technologies.

[0060] The extension 104 conforms to the anatomical structure to avoid hard pressure, and the outer layer of the silicone soft plug 102 provides a soft skin contact surface; the cushioning design reduces the transmission of shock, all of which significantly reduce fatigue and discomfort during long-term wear.

[0061] Through the precise design of the extension 104 (especially the lower extension 109 which only extends to 2 / 3 of the length) and the elliptical cross-section, while achieving multi-point stable support, the overall size and protrusion of the headphone body 100 are effectively controlled, avoiding the bulkiness and discomfort caused by increasing the size in pursuit of tightness in the traditional way.

[0062] A secure fit ensures that the relative position of the headphone driver unit and the ear canal entrance is stable, which helps maintain consistent sound quality and sound isolation / noise reduction effect;

[0063] This utility model of earphones adopts an elliptical circular wearing part 103 and a naturally converging extension part 104 design. Combined with the insertion and cooperation of the docking post 105 and the silicone soft plug 102, it effectively enhances the tightness and wearing comfort of Bluetooth earphones. The elliptical wearing part conforms to the shape of the ear, reducing the risk of loosening. The arc-shaped upward extension of the extension part 104 and the inner and outer layers of the silicone soft plug 102 provide cushioning and stable support, thereby preventing it from falling off during sports or daily use. At the same time, it reduces the overall size and improves the user's convenience and comfort experience.

[0064] In this embodiment of the present invention, the outer colloid 110 includes a bowl-shaped colloid 112, and the lower end of the bowl-shaped colloid 112 has an elliptical first sound outlet 113.

[0065] The inner layer colloid 111 includes a tubular colloid 114, which includes a vertical tube section 115 and an inclined tube section 116 connected to the lower end of the vertical tube. The upper end of the vertical tube section 115 is inserted into the docking post 105, and the lower end of the inclined tube section 116 is fixedly connected to the inner wall of the bowl-shaped colloid 112. At the connection between the inclined tube section 116 and the bowl-shaped colloid 112, a second sound outlet 117 with the same shape as the sound outlet extends downward.

[0066] The elliptical first sound outlet 113 of the bowl-shaped colloid 112 fits tightly against the shape of the ear canal entrance, significantly improving passive noise insulation and wearing comfort. At the same time, the shape matching and downward extension structure of the second sound outlet 117 with the first sound outlet 113 ensures efficient and lossless sound wave transmission, eliminating the sound energy reflection loss and phase interference of traditional straight-through earplugs. In addition, the fixed connection between the oblique tube section 116 and the bowl-shaped colloid 112 forms a rigid support, effectively avoiding misalignment of the sound outlet caused by the deformation of the soft plug, maintaining acoustic sealing stability, and thus ensuring both sound quality purity and noise reduction reliability in complex motion scenarios.

[0067] In this embodiment of the present invention, the inner wall of the tubular colloid 114 is formed with a first snap-fit ​​ring 118 and a second snap-fit ​​ring 119, and the outer wall of the docking post 105 is formed with a third snap-fit ​​ring 120 that engages with the first snap-fit ​​ring 118 and the second snap-fit ​​ring 119.

[0068] The first snap ring 118 has a downward through-hole limiting groove 121, and the docking post 105 has a limiting block 122 formed on it for limiting and snapping engagement within the limiting groove 121.

[0069] The first and second locking rings 119 form upper and lower anchor points on the inner wall of the tubular colloid 114, and are bidirectionally engaged with the third locking ring 120 on the outer wall of the docking post 105, forming a double mechanical lock, which effectively resists axial pulling force (such as accidental snagging of cables or inertial force when taking them off), and prevents the silicone soft plug 102 from accidentally separating from the docking post 105.

[0070] The limiting block 122 and the limiting groove 121 of the first snap ring 118 form a circumferential constraint, which completely eliminates the relative rotation between the docking post 105 and the tubular colloid 114, avoids the soft plug torsion caused by the user's head shaking and chewing action, keeps the sound outlet always aligned with the ear canal, and ensures the stability of the acoustic seal.

[0071] The elastic material of the snap ring (such as silicone) provides flexible cushioning in rigid locking, disperses external impact loads (such as motion vibration), and reduces the risk of structural fatigue damage.

[0072] The three-ring nested structure increases the contact area, reduces wear per unit area, and extends the life of the connection.

[0073] An earphone charging case, applicable to the aforementioned Bluetooth earphones, includes a case body 123 and an upper cover 124 disposed on the case body 123;

[0074] The compartment component 123 includes a compartment outer shell 125 and an inner support component 126 that is fastened inside the compartment outer shell 125;

[0075] The outer shell 125 of the compartment is circular;

[0076] The upper end face of the inner support 126 is provided with a recessed receiving groove 127 for accommodating the headphone body 100. The receiving groove 127 includes a first arc-shaped groove 128 and a second arc-shaped groove 129 disposed on the lower end face of the first arc-shaped groove 128.

[0077] The first arc-shaped groove 128 is bent downward from the upper end of the inner support 126. The first arc-shaped groove 128 has a raised arc-shaped dividing block 130 in the middle. The arc-shaped dividing block 130 divides the first arc-shaped groove 128 into an independent left arc-shaped groove 131 and a right arc-shaped groove 132. The inner bottom surfaces of the left arc-shaped groove 131 and the right arc-shaped groove 132 are respectively provided with conductive PIN pin groups 133.

[0078] The first arc-shaped groove 128 of the receiving slot 127 bends downward to fit the contour of the earphone body 100. Its built-in arc-shaped partition block 130 precisely divides the space into independent left and right slots, completely eliminating the collision and wear of the two earphones. The second arc-shaped groove 129 supports the outer layer of the silicone soft earphone plug 102, forming a fully enclosed limit to avoid displacement caused by transportation vibration. The conductive PIN pin group 133 at the bottom of the groove is directly aligned with the earphone charging contacts. With the guiding effect of the partition block, it ensures that the charging connection is easily calibrated when the earphone is placed in the earphone case, eliminating the misalignment and poor contact problem of traditional flat charging cases. The circular case body improves the grip comfort and the smoothness of taking it out and putting it in. The snap-fit ​​design between the inner tray 126 and the outer shell 125 of the case body facilitates maintenance and cleaning, ultimately achieving a convenient, efficient charging and protection integrated design.

[0079] In this embodiment of the present invention, the second arc-shaped groove 129 is heart-shaped, and the edge of the inner support 126 extends into the side wall of the second arc-shaped groove 129 with an arc-shaped protrusion 134, which is centered and aligned with the arc-shaped partition block 130.

[0080] Through the coordinated design of the heart-shaped second arc groove 129 and the arc-shaped protrusion 134, the stability of the earphone storage and the reliability of charging are significantly improved: the heart-shaped groove precisely matches the geometric contour of the outer layer of the silicone soft plug 102, forming a three-dimensional wrap-around limit, completely eliminating the horizontal displacement of the earphone in the case; the arc-shaped protrusion 134 extends from the edge of the inner support 126 into the groove wall, and is centered and aligned with the arc-shaped partition block 130 to form a double locking structure, which not only strengthens the lateral support of the earphone silicone soft plug 102 area to prevent rotation and displacement, but also disperses the shock of transportation vibration; the unique heart-shaped curved surface guides the earphone to slide in at a fixed angle, ensuring that the conductive PIN pin group 133 and the earphone contact point are automatically and accurately aligned, and simultaneously solving the problem of poor contact caused by the tilt of the earphone in the traditional charging case; the mechanical coupling design of the protrusion and the partition block further improves the structural strength of the inner support 126 and extends its service life, ultimately achieving a blind operation charging experience of "one-click accurate" and integrated shock resistance protection.

[0081] In this embodiment of the present invention, the inner bottom surfaces of the first arc groove 128 and the second arc groove 129 are respectively arranged in a crescent shape, and the conductive PIN pin group 133 includes a left PIN pin and a right PIN pin 136 symmetrically arranged in the center on the left and right sides.

[0082] The double crescent-shaped inner bottom surface precisely matches the curved contour of the earphone body 100. By increasing the contact area through the curved surface, it forms uniform mechanical support, effectively dispersing the weight of the earphone and suppressing vibration displacement. The symmetrical pin group is centrally positioned to ensure that the earphone contact tolerance range is covered no matter what angle the earphone is placed at, completely eliminating the risk of single-point poor contact. The guiding effect of the crescent curved surface guides the earphone to slide along a fixed trajectory to the center charging position, so that the pin and the contact are automatically and accurately aligned. The symmetrical double pin design provides redundant contact protection. Even if one side of the pin is contaminated or worn, it can still maintain stable charging. Ultimately, it achieves a high-tolerance charging experience and long-term reliability with "any placement, zero-error conduction".

[0083] In this embodiment of the utility model, the rear end of the inner support 126 is provided with a rotating connecting groove 137, the rear end of the outer shell 125 is provided with a rotating mounting groove 138 that aligns with the rotating connecting groove 137, rotating connecting arms 139 are fixed on both sides of the rotating connecting groove 137, rotating connecting holes 140 are provided on the rotating connecting arms 139, and a rotating connecting block 141 is fixed on the rear end of the upper cover 124. The rotating connecting block 141 is provided with a rotating shaft 142 that rotates and engages within the rotating connecting hole 140, and the rotating connecting block 141 rotates and engages within the rotating mounting groove 138.

[0084] The inner bottom surface of the inner support 126 is fixedly provided with a limiting block 122 that aligns with the rotating connecting groove 137. The side of the limiting block 122 facing the rotating connecting groove 137 is provided with a relief groove 143. The inner bottom surface of the relief groove 143 is in a limiting abutment fit with the lower end of the rotating connecting block 141. The inner bottom surface of the relief groove 143 is fixedly provided with a limiting post 144 that aligns with the lower end of the rotating connecting block 141.

[0085] The rotating connecting block 141 and the rotating connecting hole 140 form a basic rotating shaft 142 pair, ensuring the smooth opening and closing of the upper cover 124. The rotating connecting block 141 is embedded in the rotating mounting groove 138 to form a radial constraint, suppressing the lateral sway of the rotating shaft 142. The clearance groove 143 of the limiting block 122 accurately accommodates the lower end of the rotating connecting block 141. The rigid contact between the limiting post 144 and the lower end achieves a physical stop of the opening angle, completely eliminating stress damage to the rotating shaft 142 caused by excessive flipping. The double limiting design of the bottom surface of the limiting post 144 and the clearance groove 143 simultaneously disperses the closing impact load, avoiding fatigue fracture of the plastic parts, while ensuring the stability of the upper cover suspension, greatly improving product durability and user experience.

[0086] In this embodiment of the utility model, the inner bottom surface of the outer shell 125 of the compartment is fixedly provided with a lever arm support 145 that is aligned and cooperates with the rotating connecting arm 139, and the lever arm support 145 is provided with a support arc-shaped surface 146 that is adapted to the end contour of the rotating connecting arm 139.

[0087] Alignment insertion tubes 147 are fixedly provided on both sides of the lever arm support 145, and alignment insertion pins 148 that are inserted into the alignment insertion tubes 147 are fixedly provided on the inner bottom surface of the inner support 126.

[0088] The supporting arc surface 146 of the lever arm support 145 precisely matches the end profile of the rotating connecting arm 139, forming a large-area curved surface support, effectively dispersing the load of the rotating shaft 142 and suppressing opening and closing vibrations; the rigid insertion fit between the alignment plug tube 147 and the plug post locks the relative position of the inner support 126 and the outer shell 125 of the compartment in the vertical direction, eliminating misalignment friction caused by assembly tolerances; the double-sided plug structure forms a mechanical triangular stable frame, simultaneously resisting the torsional stress generated by transportation impacts and accidental drops, preventing plastic deformation of the connecting arm of the rotating shaft 142.

[0089] In this embodiment of the utility model, a fastener 149 is fixedly provided on the inner wall of the outer shell 125 of the compartment, and a buckle 150 is fixedly provided at the lower end of the inner support 126 to engage with the fastener 149.

[0090] The rigid engagement between the buckle 150 and the outer shell 125 and the fastener 149 forms a vertical main lock, completely eliminating the vertical movement of the inner support 126 during transportation vibrations; the interference fit between the fastener 149 and the buckle 150's barbs synchronously resists horizontal shearing forces, preventing misalignment of the charging contacts caused by lateral displacement of the inner support 126; the elastic buckle 150 design allows for tool-less disassembly, facilitating cleaning of accumulated dust or replacement of damaged parts; the mechanical optimization of the fastening surface and the buckle 150's fulcrum disperses drop impact loads, preventing brittle fracture of plastic parts, while significantly improving product maintainability and impact resistance life.

[0091] In this embodiment of the utility model, a charging port 151 is provided on the outer shell 125 of the compartment below the rotating connecting groove 137, and a button port 152 is provided on one side of the charging port 151.

[0092] The charging port 151 is precisely positioned below the rotating connecting slot 137, making full use of the internal redundant space. The independent button port 152 is arranged sideways next to the charging port 151, achieving clear functional zoning. The low-position design of the charging port 151, combined with the bottom plane of the compartment, ensures placement stability and avoids dust accumulation on the interface. While allowing users to plug and unplug the charging cable with one hand and quickly trigger the button function, it maintains the integrity of the shell and dustproof and waterproof performance, achieving synergistic optimization of human-computer interaction and internal space utilization.

[0093] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A Bluetooth earphone, characterized in that, The device includes an earphone body (100), which includes an earphone shell (101) and a silicone soft plug (102) disposed below the earphone shell (101). The earphone shell (101) includes a circular wearing part (103), an extension part (104) and a docking post (105). The circular wearing part (103) includes an upper wearing shell (106) and a lower wearing shell (107) that are fastened together, and the upper wearing shell (106) and the lower wearing shell (107) are arranged in an elliptical shape; The extension (104) includes an upper extension (108) connected to the upper end face of the wearing lower housing (107) and a lower extension (109) connected to the lower end face of the wearing lower housing (107). The upper extension (108) is inclined upward from the docking post (105) and connected to the edge of the upper end face of the wearing lower housing (107). The lower extension (109) extends upward in an arc shape from the docking post (105) to 2 / 3 of the lower end face of the wearing lower housing (107). The cross-section of the docking post (105) is elliptical. The upper extension (108) and the lower extension (109) naturally converge and are integrally formed with the upper end of the docking post (105). The lower end of the docking post (105) is inserted into the silicone soft plug (102). The silicone soft plug (102) includes an outer layer of silicone (110) that abuts against the user's ear canal and an inner layer of silicone (111) disposed inside the outer layer of silicone (110) and inserted into the docking post (105).

2. The Bluetooth earphone according to claim 1, characterized in that, The outer layer colloid (110) includes a bowl-shaped colloid (112), and the lower end of the bowl-shaped colloid (112) has an elliptical first sound outlet (113). The inner layer colloid (111) includes a tubular colloid (114), which includes a vertical tube section (115) and an inclined tube section (116) connected to the lower end of the vertical tube. The upper end of the vertical tube section (115) is inserted into the docking post (105), and the lower end of the inclined tube section (116) is fixedly connected to the inner wall of the bowl-shaped colloid (112). At the connection between the inclined tube section (116) and the bowl-shaped colloid (112), a second sound outlet (117) with the same shape as the sound outlet extends downward.

3. The Bluetooth earphone according to claim 2, characterized in that, The inner wall of the tubular colloid (114) is formed with a first snap ring (118) and a second snap ring (119), and the outer wall of the docking post (105) is formed with a third snap ring (120) that snaps between the first snap ring (118) and the second snap ring (119). The first snap ring (118) has a downward through-hole limiting groove (121), and the docking post (105) has a limiting block (122) formed in the limiting groove (121) for limiting and snapping engagement.

4. An earphone charging case, applicable to the Bluetooth earphones according to any one of claims 1-3, characterized in that, Includes a storage body (123) and an upper cover (124) covering the storage body (123); The compartment component (123) includes a compartment shell (125) and an inner support component (126) that is fastened inside the compartment shell (125). The outer shell (125) of the compartment is circular; The upper end face of the inner support (126) is provided with a recessed receiving groove (127) for accommodating the headphone body (100). The receiving groove (127) includes a first arc-shaped groove (128) and a second arc-shaped groove (129) disposed on the lower end face of the first arc-shaped groove (128). The first arc-shaped groove (128) is bent downward from the upper end of the inner support (126). The first arc-shaped groove (128) has a raised arc-shaped partition block (130) in the middle. The arc-shaped partition block (130) divides the first arc-shaped groove (128) into an independent left arc-shaped groove (131) and a right arc-shaped groove (132). The inner bottom surfaces of the left arc-shaped groove (131) and the right arc-shaped groove (132) are respectively provided with conductive PIN pin groups (133).

5. The earphone charging pod of claim 4, wherein, The second arc-shaped groove (129) is heart-shaped, and the edge of the inner support (126) extends into the side wall of the second arc-shaped groove (129) with an arc-shaped protrusion (134), which is centered and aligned with the arc-shaped partition block (130).

6. The earphone charging case according to claim 5, characterized in that, The inner bottom surfaces of the first arc groove (128) and the second arc groove (129) are respectively set in a crescent shape, and the conductive PIN pin group (133) includes a left PIN pin and a right PIN pin (136) symmetrically arranged in the center on the left and right.

7. An earphone charging case according to any one of claims 4-6, characterized in that, The rear end of the inner support (126) is provided with a rotating connection groove (137), and the rear end of the outer shell (125) is provided with a rotating mounting groove (138) that aligns with the rotating connection groove (137). Rotating connecting arms (139) are fixed on both sides of the rotating connection groove (137), and rotating connecting holes (140) are provided on the rotating connecting arms (139). The rear end of the upper cover (124) is fixed with a rotating connecting block (141), and a rotating shaft (142) is provided on the rotating connecting block (141) that rotates and engages in the rotating connecting hole (140). The rotating connecting block (141) rotates and engages in the rotating mounting groove (138). The inner bottom surface of the inner support (126) is fixedly provided with a limiting block (122) that aligns with the rotating connecting groove (137). The side of the limiting block (122) facing the rotating connecting groove (137) is provided with a relief groove (143). The inner bottom surface of the relief groove (143) is in a limiting abutment fit with the lower end of the rotating connecting block (141). The inner bottom surface of the relief groove (143) is fixedly provided with a limiting post (144) that aligns with the lower end of the rotating connecting block (141).

8. The earphone charging pod of claim 7, wherein, The inner bottom surface of the outer shell (125) of the compartment is fixed with a lever arm support (145) that is aligned with the rotating connecting arm (139). The lever arm support (145) has a support arc surface (146) that is adapted to the end profile of the rotating connecting arm (139). The lever arm support (145) is fixedly provided with alignment connectors (147) on both sides, and the inner bottom surface of the inner support (126) is fixedly provided with alignment connectors (148) that are inserted into the alignment connectors (147).

9. The earphone charging pod of claim 8, wherein, The inner wall of the outer shell (125) of the compartment is fixedly provided with a fastener (149), and the lower end of the inner support (126) is fixedly provided with a buckle (150) that engages with the fastener (149).

10. The earphone charging pod of claim 9, wherein, A charging port (151) is provided on the outer shell (125) below the rotating connection groove (137), and a button port (152) is provided on one side of the charging port (151).

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