Connection structure, headphone, and headphone system

Abstract

A connection structure (100), comprising a mounting box (10) and a connection assembly (30) connected to each other. The mounting box (10) is provided with a connection hole (11) communicated with the outside. The connection hole (11) is used for allowing the connection assembly (30) to extend into. The connection assembly (30) comprises a connection body (31) and a connection member (33) at least partially sleeved on the connection body (31). The connection body (31) and the connection member (33) are integrally formed by means of two-shot injection molding. At least part of the connection member (33) sleeved on the connection body (31) protrudes in a direction moving away from the connection body (31) to form an annular sealing portion (331). The sealing portion (331) abuts against the side wall of the connection hole (11).

Description

Connection structure, headphones, and headphone system

[0001] Priority information

[0002] This application claims priority and benefits to patent application No. 2024221343674, filed with the China National Intellectual Property Administration on August 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of headphone technology, and more specifically, to a connection structure, headphones, and headphone system. Background Technology

[0004] Typically, the transducer assembly (which can also be a battery box assembly or control box assembly) is connected to the ear hook, and the seal between the two is usually achieved by adding a sealing ring. Specifically, the sealing ring is first assembled onto the transducer assembly or ear hook, and then sealant is injected to complete the seal. Because of the addition of the sealing ring and the need to use sealant, labor and material costs are increased, and this method is not very effective at waterproofing; external liquids entering the transducer assembly can affect its sound quality. Summary of the Invention

[0005] This application provides a connection structure, headphones, and a headphone system.

[0006] The connection structure of this application includes a mounting box and a connection assembly. The mounting box has a connection hole communicating with the outside. The connection assembly is connected to the mounting box, and the connection hole is for the connection assembly to extend into. The connection assembly includes a connection body and a connector. At least a portion of the connector is sleeved on the connection body. The connection body and the connector are integrally molded in two colors. At least a portion of the connector sleeved on the connection body protrudes away from the connection body to form an annular sealing portion, and the sealing portion abuts against the sidewall of the connection hole.

[0007] In some embodiments, the hardness of the connecting body is greater than the hardness of the connecting member.

[0008] In some embodiments, the connecting body is made of hard plastic and the connector is made of soft plastic.

[0009] In some embodiments, the connector includes a body portion and a protrusion portion, the outer side of the protrusion portion protruding to form the sealing portion; the connecting body includes a first connecting portion and a second connecting portion, the body portion being sleeved on the first connecting portion, the protrusion portion being sleeved on the second connecting portion, the first connecting portion having a protrusion extending toward the connector on the side near the second connecting portion, and a recess being formed on the inner side of the body portion, the protrusion engaging with the recess.

[0010] In some embodiments, both the protrusion and the body portion abut against the side wall of the mounting box.

[0011] In some embodiments, the sealing portion includes a plurality of sealing portions, which are arranged sequentially at intervals along the extending direction of the protrusion.

[0012] In some embodiments, a first boss is formed between the first connecting portion and the second connecting portion, and a second boss is formed between the body portion and the protrusion, with the first boss and the second boss engaging.

[0013] In some embodiments, the connecting body further includes a third connecting portion extending from the second connecting portion, the third connecting portion being connected to the sidewall of the connecting hole by a sealant, the outer sidewall of the third connecting portion being provided with a corrugated pattern, the corrugation being used to enhance the adhesion of the sealant.

[0014] In some embodiments, the mounting box has a mounting cavity that communicates with the connecting hole; the connecting body further includes a fourth connecting portion extending from the third connecting portion, the fourth connecting portion being a hook that extends into the mounting cavity to engage with the inner wall of the connecting hole.

[0015] In some embodiments, the third connecting portion has a third cavity inside; the connecting structure also includes a fixing member, a part of which extends into the third cavity, and another part of which presses the third connecting portion against the side wall of the connecting hole.

[0016] In some embodiments, the third connecting part has a third cavity inside, and the fourth connecting part has a fourth cavity inside. The third cavity and the fourth cavity are connected. The fourth cavity is used to provide deformation space for the fourth connecting part to deform under force during the process of inserting it into the connecting hole. After the fourth connecting part is re-inserted into place, the fourth connecting part returns to its initial shape to engage with the inner wall of the connecting hole.

[0017] In some embodiments, the first connecting portion has a first cavity inside, the second connecting portion has a second cavity inside, the third connecting portion has a third cavity inside, and the fourth connecting portion has a fourth cavity. The first cavity, the second cavity, the third cavity, and the fourth cavity are connected, and the fourth cavity is connected to the outside.

[0018] In some embodiments, the sealing part is a closed annular structure; or, the sealing part is an intermittent annular structure.

[0019] In some embodiments, the mounting box includes a battery box for holding batteries, a control box with control functions, and / or a transducer box with vibration functions.

[0020] In some implementations, the connection components include ear hooks and / or back hooks of the headphones.

[0021] The earphones in this application include the connection structure described in the above embodiments.

[0022] In some embodiments, the headphones include bone conduction headphones and air conduction headphones.

[0023] The headphone system of this application includes the headphones and charging case described in the above embodiments, wherein the charging case is used to charge the headphones.

[0024] In the connection structure, earphone, and earphone system of this application embodiment, the connection body and the connector are integrally molded using two-color injection molding. At least a portion of the connector, fitted onto the connection body, protrudes away from the connection body to form an annular sealing portion. Compared to current connection structures, the connection structure of this application does not require an additional sealing ring, and the connection between the connection component and the mounting box is simpler, effectively saving labor and material costs. Furthermore, when the connection component is connected to the mounting box, the sealing portion abuts against the side wall of the connection hole, resulting in high connection strength between the connection component and the mounting box. The waterproof effect of the connection structure is also better, making it difficult for external liquids to flow into the interior of the mounting box through the gap between the connection component and the side wall of the connection hole.

[0025] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0027] Figure 1 is a perspective view of an earphone according to some embodiments of this application;

[0028] Figure 2 is a three-dimensional schematic diagram of the connection structure in the earphone in Figure 1;

[0029] Figure 3 is a cross-sectional view of the connection structure in Figure 2 along line III-III;

[0030] Figure 4 is a three-dimensional exploded view of the connection structure in Figure 2;

[0031] Figure 5 is a perspective view of a headphone system according to certain embodiments of this application. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "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.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] 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.

[0038] Typically, the transducer assembly (which can also be a battery box assembly or a control box assembly) is connected to the ear hook, and the seal between the two is usually achieved by adding a sealing ring. Specifically, the sealing ring is first assembled onto the transducer assembly or ear hook, and then a sealant is injected to complete the seal. Because of the addition of the sealing ring and the need for sealant, labor and material costs are increased, and this method has poor waterproofing; external liquids entering the transducer assembly can affect its sound quality. To solve this problem, this application provides a connection structure 100 (shown in FIG. 2), an earphone 1000 (shown in FIG. 1), and an earphone system 10000 (shown in FIG. 5).

[0039] Referring to Figure 1, the earphone 1000 of this application embodiment includes a connection structure 100. In some embodiments, the earphone 1000 includes a bone conduction earphone 1000 and an air conduction earphone 1000.

[0040] Among them, the bone conduction headphones 1000 use the human skeleton as a medium. The bone conduction headphones 1000 convert sound into mechanical vibrations, which are transmitted through the bones to allow the user to hear. Since the sound from the bone conduction headphones 1000 acts on the bones, long-term use will not significantly affect the user's eardrum, effectively protecting the user's hearing. The air conduction headphones 1000 transmit sound through air vibrations, offering better sound quality and penetration. This application uses the bone conduction headphones 1000 as an example for explanation.

[0041] Please refer to Figures 2 to 4. The connection structure 100 of this embodiment includes a mounting box 10 and a connection component 30. The mounting box 10 is provided with a connection hole 11 communicating with the outside. The connection component 30 is connected to the mounting box 10. The connection hole 11 is used for the connection component 30 to extend into. The connection component 30 includes a connection body 31 and a connector 33. At least a portion of the connector 33 is sleeved on the connection body 31. The connection body 31 and the connector 33 are integrally molded by two-color injection molding. At least a portion of the connector 33 sleeved on the connection body 31 protrudes in a direction away from the connection body 31 to form an annular sealing portion 331. The sealing portion 331 abuts against the side wall of the connection hole 11.

[0042] Specifically, referring to Figures 1 and 2, the mounting box 10 is a structure for mounting the battery, circuit board, and other components of the headphones 1000. In some embodiments, the mounting box 10 includes a battery box 101 for holding the battery, a control box 103 with control functions, and / or a transducer box 105 with vibration functions. In some embodiments, the mounting box 10 may include the control box 103. The control box 103 can be used to control the power on and off of the headphones 1000 and adjust the volume of the headphones 1000. In other embodiments, the mounting box 10 may include the battery box 101. The battery box 101 is used to hold the battery, which powers the headphones 1000 so that the headphones 1000 can function normally. In still some embodiments, the mounting box 10 may include the transducer box 105, which may house vibration components. When the earphone 1000 is in use, the transducer box 105 can fit in contact with the human skin. When the vibration component is powered on, it can drive the transducer box 105 to vibrate. When the transducer box 105 vibrates, it transmits sound waves through the human skeleton so that the user can hear the sound. In some other embodiments, the mounting box 10 may include a control box 103, a battery box 101, and a transducer box 105.

[0043] Please refer to Figures 3 and 4. The connecting component 30 is used to extend into the connecting hole 11 to connect with the mounting box 10. The connecting component 30 may have internal wires, which can be electrically connected to components within the mounting box 10 when the connecting component 30 is connected to the mounting box 10. In some embodiments, the connecting component 30 includes an ear hook 301 and / or a back hook 303 for the earphone 1000. When the user wears the earphone 1000, the back hook 303 is worn on the head, and the ear hook 301 is worn behind the ear, thereby improving the stability of the earphone 1000 and preventing it from easily falling off, even outdoors or during exercise. The back hook 303 is used to connect the battery box 101 and the control box 103. The ear hook 301 is used to connect the battery box 101 and the transducer box 105, and to connect the control box 103 and the transducer box 105.

[0044] When the mounting box 10 is a transducer box 105, the connecting component 30 can be an ear hook 301, in which case one end of the mounting box 10 is provided with a connecting hole 11. When the mounting box 10 is a control box 103 or a battery box 101, the connecting component 30 may include an ear hook 301 and a rear hook 303. In this case, the mounting box 10 is provided with connecting holes 11 at both opposite ends in the length direction of the mounting box 10. One connecting hole 11 of the mounting box 10 is used for the ear hook 301 to extend into, and the other connecting hole 11 of the mounting box 10 is used for the rear hook 303 to extend into. This application uses the mounting box 10 as a transducer box 105 and the connecting component 30 including an ear hook 301 as an example for description.

[0045] The connector 33 is mainly used to house the wire of the earphone 1000, and the connector body 31 is mainly used to securely connect the connector assembly 30 and the mounting box 10. At least a portion of the connector 33 is fitted onto the connector body 31. When at least a portion of the connector assembly 30 extends into the connector hole 11, at least a portion of the connector body 31 and at least a portion of the connector 33 can both extend into the connector hole 11. The connector 33 can also be used to seal the gap between the connector assembly 30 and the sidewall of the connector hole 11.

[0046] The connecting body 31 and the connector 33 in this application are made of different materials. When the connecting body 31 and the connector 33 are integrally molded using two-color injection molding, the processing steps for the connecting assembly 30 are fewer, and the processing method for the connecting assembly 30 is simpler. Furthermore, the connection between the connecting body 31 and the connector 33 is tighter, and they are less likely to loosen.

[0047] Referring to Figures 3 and 4, preferably, in some embodiments, the hardness of the connecting body 31 is greater than the hardness of the connector 33. In this case, after the connecting component 30 extends into the connecting hole 11, the connection strength between the connecting component 30 and the mounting box 10 is high, and the connecting component 30 is less likely to detach from the mounting box 10. When the hardness of the connecting body 31 is less than the hardness of the connector 33, the connection strength between the connecting component 30 and the mounting box 10 is low, and the connecting component 30 is more likely to fall off from the mounting box 10, resulting in a poor user experience.

[0048] In some embodiments, the connecting body 31 is made of rigid plastic, and the connector 33 is made of flexible plastic. When the connecting body 31 is made of rigid plastic, the connection between the connecting assembly 30 and the mounting box 10 is more stable and the connection strength between them is higher. When the connector 33 is made of flexible plastic, it is easier for the user to deform, allowing for easier adjustment of the position and shape of the connector 33 to better fit the user's head. The flexible plastic can be, but is not limited to, rubber, silicone, thermoplastic elastomers, or polyvinyl chloride.

[0049] The connector 33, fitted onto a portion of the connecting body 31, has a sealing part 331. The sealing part 331 seals the gap between the connecting assembly 30 and the connecting hole 11, preventing external liquid from entering the mounting box 10 through this gap. When the connecting assembly 30 and the connecting hole 11 are in place, the annular sealing part 331 abuts against the entire circumference of the sidewall of the connecting hole 11. Because the sealing part 331 is made of soft rubber, it deforms under pressure when in contact with the inner wall of the connecting hole 11. This results in almost no gap between the sealing part 331 and the sidewall of the connecting hole 11, making it difficult for external liquid to enter the mounting box 10 through the gap between the connecting assembly 30 and the connecting hole 11, thus providing good waterproofing for the connecting structure 100. Furthermore, when the sealing part 331 abuts against the side wall of the connecting hole 11, the friction between the sealing part 331 and the side wall of the connecting hole 11 is relatively large, thereby improving the connection stability between the connecting assembly 30 and the mounting box 10, and making it less likely for the connecting assembly 30 to loosen relative to the mounting box 10. The sealing part 331 provided on the connector 33 in this application can effectively improve the waterproof rating of the connecting structure 100, and also improve the connection strength between the connecting assembly 30 and the mounting box 10. The structure of the connecting assembly 30 is also relatively simple, making it easier to manufacture, and the installation of the connecting structure 100 is also relatively simple.

[0050] In the connection structure 100 of this application embodiment, the connection body 31 and the connector 33 are integrally molded using two-color injection molding. At least a portion of the connector 33 is fitted onto the connection body 31 and protrudes in a direction away from the connection body 31 to form an annular sealing portion 331. Compared to the current connection structure 100, the connection structure 100 of this application does not require an additional sealing ring, and the connection between the connection component 30 and the mounting box 10 is simpler, effectively saving manpower and material costs. Furthermore, when the connection component 30 is connected to the mounting box 10, the sealing portion 331 abuts against the side wall of the connection hole 11, resulting in a high connection strength between the connection component 30 and the mounting box 10. The waterproof effect of the connection structure 100 is also better, making it difficult for external liquids to flow into the mounting box 10 through the gap between the connection component 30 and the side wall of the connection hole 11.

[0051] The connection structure 100 will be further explained below with reference to the accompanying drawings.

[0052] Please refer to Figures 3 and 4. In some embodiments, the connector 33 includes a body portion 333 and a protrusion 335, with the outer side of the protrusion 335 forming a sealing portion 331. The connecting body 31 includes a first connecting portion 311 and a second connecting portion 313, with the body portion 333 fitted onto the first connecting portion 311 and the protrusion 335 fitted onto the second connecting portion 313. The first connecting portion 311 has a protrusion 315 extending toward the connector 33 on the side near the second connecting portion 313, and a recess 3331 is formed on the inner side of the body portion 333, with the protrusion 315 engaging with the recess 3331.

[0053] When the connecting component 30 is connected to the mounting box 10, the second connecting portion 313 and the protrusion 335 extend into the connecting hole 11. The sealing portion 331 on the protrusion 335 abuts against the side wall of the connecting hole 11, thereby increasing the connection strength between the connecting component 30 and the mounting box 10 and improving the waterproof effect of the connecting structure 100. During the two-color injection molding process between the connecting body 31 and the connector 33, after the molten connector 33 solidifies on the surface of the connecting body 31, the body portion 333 can form a recess 3331 at the position corresponding to the protrusion 315. When a protrusion 315 is provided on the side of the first connecting portion 311 near the second connecting portion 313, and a recess 3331 is formed on the inner side of the body portion 333, the protrusion 315 and the recess 3331 cooperate to increase the connection area between the first connecting portion 311 and the body portion 333, thereby improving the connection strength between the connecting body 31 and the connector 33, and making it less likely for the connector 33 to loosen relative to the connecting body 31.

[0054] The number of protrusions 315 can be, but is not limited to, one, two, three, four, or more. When there is only one protrusion 315, it can be located at any position on the side of the first connecting portion 311 near the second connecting portion 313. There can also be only one recess 3331, the position of which corresponds to the position of the protrusion 315. In this case, the structure of the connecting body 31 is relatively simple, and the manufacturing process is relatively easy. When there are multiple protrusions 315, they can be evenly or non-evenly distributed on the side of the first connecting portion 311 near the second connecting portion 313. The number of recesses 3331 can be the same as the number of protrusions 315, and the positions of the multiple recesses 3331 correspond to the positions of the multiple protrusions 315. In this case, the connection strength between the connecting body 31 and the connecting member 33 is higher.

[0055] Please refer to Figures 3 and 4. In some embodiments, both the protrusion 315 and the body portion 333 abut against the side wall of the mounting box 10.

[0056] After the connecting component 30 and the mounting box 10 are installed in place, the end of the main body 333 near the protrusion 335 abuts against the outer wall of the connecting hole 11 (the side wall of the mounting box 10), thereby positioning the connecting component 30. The main body 333 in this application is made of soft rubber. When the soft rubber (main body 333) abuts against the outer wall of the connecting hole 11, the abutment strength of the outer wall of the connecting hole 11 is poor, resulting in poor positioning of the connecting component 30. Furthermore, external liquid can easily flow into the connecting hole 11 from the gap between the main body 333 and the outer wall of the connecting hole 11, leading to poor waterproofing of the connecting structure 100.

[0057] A protrusion 315 is provided on the first connecting portion 311. When the protrusion 315 and the body portion 333 abut against the outer wall of the connecting hole 11, since the protrusion 315 is made of hard plastic, the protrusion 315 and the body portion 333 can make hard contact with the outer wall of the connecting hole 11. At this time, the connection strength between the connecting assembly 30 and the mounting box 10 is high. Furthermore, the protrusion 335 and the body portion 333 have a good installation and positioning effect on the connecting assembly 30. After the connecting assembly 30 is installed in place, it can effectively prevent the connecting assembly 30 from continuing to extend into the connecting hole 11. In addition, when the protrusion 315 and the body portion 333 are in hard contact with the outer wall of the connecting hole 11, there is almost no gap between the body portion 333 and the side wall of the connecting hole 11. External liquid is difficult to flow into the connecting hole 11 through the gap between the body portion 333 and the outer wall of the connecting hole 11, and the waterproof effect of the connecting structure 100 is good.

[0058] Referring to Figures 3 and 4, in some embodiments, the sealing portion 331 includes multiple sealing portions 331, which are arranged sequentially at intervals along the extending direction of the protrusion 335. Exemplarily, the number of sealing portions 331 may be two, three, four, or more. When there are multiple sealing portions 331, all of them abut against the sidewall of the connecting hole 11, resulting in a tighter connection between the connecting assembly 30 and the inner wall of the connecting hole 11. This strengthens the connection between the connecting assembly 30 and the mounting box 10 and further enhances the waterproof effect of the connecting structure 100, making it difficult for external liquids to enter the mounting cavity 13.

[0059] Referring to Figures 3 and 4, in some embodiments, the sealing part 331 is a closed annular structure. In this case, the structure of the sealing part 331 is relatively simple, the processing is relatively easy, and the sealing part 331 can abut against the circumference of the inner wall of the connecting hole 11, resulting in better waterproofing of the connecting structure 100. In other embodiments, the sealing part 331 is an intermittent annular structure. In this case, the sealing part 331 uses less material, thus saving material.

[0060] Please refer to Figures 3 and 4. In some embodiments, a first boss 314 is formed between the first connecting portion 311 and the second connecting portion 313, and a second boss 336 is formed between the body portion 333 and the protrusion 335. The first boss 314 and the second boss 336 cooperate with each other.

[0061] The outer diameter of the first connecting portion 311 is larger than the outer diameter of the second connecting portion 313, thereby forming a first boss 314 at the connection between the first connecting portion 311 and the second connecting portion 313. The outer diameter of the body portion 333 is larger than the outer diameter of the protrusion 335, thereby forming a second boss 336 at the connection between the body portion 333 and the protrusion 335. When the first boss 314 and the second boss 336 are engaged, the connection area between the connector 33 and the connecting body 31 is increased, thereby further enhancing the connection strength between the connector 33 and the connecting body 31, making it less likely for the connector 33 to loosen relative to the connecting body 31.

[0062] Furthermore, when the first boss 314 and the second boss 336 are engaged, the connecting component 30 has a stepped surface on the side of the body portion 333 near the protrusion 335. During the insertion of the connecting component 30 into the connecting hole 11, the stepped surface can be used to position the connecting component 30. When the stepped surface abuts against the outer wall of the connecting hole 11, the connecting component 30 and the mounting box 10 are properly installed. The installation of the connecting component 30 and the mounting box 10 is relatively simple and can effectively avoid the problem of misalignment between the connecting component 30 and the mounting box 10.

[0063] Please refer to Figures 3 and 4. Further, in some embodiments, the connecting body 31 also includes a third connecting portion 317 extending from the second connecting portion 313. The third connecting portion 317 is connected to the sidewall of the connecting hole 11 by a sealant. The outer sidewall of the third connecting portion 317 is provided with a corrugated pattern, which is used to enhance the adhesion of the sealant.

[0064] When the third connecting part 317 is connected to the side wall of the connecting hole 11 with a sealant, the connection between the connecting assembly 30 and the mounting box 10 is more secure, and the connecting assembly 30 is less likely to loosen relative to the mounting box 10. Furthermore, external liquids are less likely to enter the mounting box 10 through the gap between the third connecting part 317 and the side wall of the connecting hole 11. The contact between the sealing part 331 and the side wall of the connecting hole 11 forms a first waterproof structure, and the third connecting part 317, the sealant, and the side wall of the connecting hole 11 form a second waterproof structure. Therefore, the waterproof effect of the connecting structure 100 is better, and external liquids are less likely to enter the mounting box 10 through the connecting hole 11, thereby preventing external liquids from affecting the normal operation of the components inside the mounting box 10.

[0065] Please refer to Figures 3 and 4. Furthermore, in some embodiments, the mounting box 10 is provided with a mounting cavity 13, which communicates with the connecting hole 11; the connecting body 31 also includes a fourth connecting portion extending from the third connecting portion 317. The fourth connecting portion is a hook, which extends into the mounting cavity 13 to engage with the inner wall of the connecting hole 11.

[0066] The mounting cavity 13 is used to mount the battery, circuit board, and other components of the earphone 1000. When the connecting assembly 30 is connected to the mounting box 10, the fourth connecting part can extend into the mounting cavity 13. The fourth connecting part is connected to one end of the third connecting part 317, and the fourth connecting part and the third connecting part 317 can be an integral structure or a separate structure. When the fourth connecting part and the third connecting part 317 are an integral structure, they can be integrally molded, the processing steps of the connecting assembly 30 are relatively simple, and the connection between the fourth connecting part and the third connecting part 317 is relatively stable. When the fourth connecting part and the third connecting part 317 are separate structures, they can be detachably or non-detachably connected. Detachable mounting methods include, but are not limited to, threaded connections, screw connections, or snap-fit ​​connections. Non-detachable mounting methods include, but are not limited to, welding, gluing, or interference fits.

[0067] When the third connecting part 317 extends into the connecting hole 11, the third connecting part 317 can drive the fourth connecting part to extend into the connecting hole 11 together. When the connecting assembly 30 is installed in place, the fourth connecting part can extend into the mounting cavity 13. When the fourth connecting part is a hook, the hook can abut against the inner wall of the connecting hole 11. At this time, the cooperation between the fourth connecting part and the inner wall of the connecting hole 11 can effectively restrict the connecting assembly 30 from moving away from the mounting box 10. After the connecting assembly 30 and the mounting box 10 are installed in place, the stepped surface of the body part 333 is used to restrict the connecting assembly 30 from continuing to move towards the mounting cavity 13, and the fourth connecting part is used to restrict the connecting assembly from moving away from the mounting box 10. Therefore, the connection between the connecting assembly 30 and the mounting box 10 is relatively stable, and the connecting assembly 30 is difficult to detach from the mounting box 10.

[0068] Referring to Figures 3 and 4, in some embodiments, the third connecting portion 317 has a third cavity 3171 inside; the connecting structure 100 also includes a fixing member, a part of which extends into the third cavity 3171, and the other part of which presses the third connecting portion 317 against the side wall of the connecting hole 11. The fixing member can be a pin. After the connecting assembly 30 is installed in place, the pin can extend into the third cavity 3171 and press the third connecting portion 317 against the side wall of the connecting hole 11, thereby further strengthening the connection strength between the third connecting portion 317 and the mounting box 10, thus strengthening the connection strength between the connecting assembly 30 and the mounting box 10.

[0069] Please refer to Figures 3 and 4. In some embodiments, the third connecting part 317 has a third cavity 3171 inside, and the fourth connecting part has a fourth cavity inside. The third cavity 3171 and the fourth cavity are connected. The fourth cavity is used to provide deformation space for the fourth connecting part to deform under force during the process of inserting into the connecting hole 11. After the fourth connecting part is re-inserted into place, the fourth connecting part returns to its initial shape to engage with the inner wall of the connecting hole 11.

[0070] The outer diameter of the hook (fourth connecting part) can be larger than the outer diameter of the connecting hole 11, so that when the hook is in the mounting cavity 13, it can engage with the inner wall of the connecting hole 11. During the insertion of the connecting assembly 30 into the connecting hole 11, the hook is compressed by the side wall of the connecting hole 11, and the hook can deform towards the fourth cavity. When the third cavity 3171 is connected to the fourth cavity, the deformation of the hook can cause the third connecting part 317 to deform towards the third cavity 3171; conversely, the deformation of the third connecting part 317 can also cause the hook to deform. Therefore, when the hook is compressed by the side wall of the connecting hole 11, the deformation of the hook is easier, thus facilitating the insertion of the hook into the mounting cavity 13. When the hook enters the mounting cavity 13 through the connecting hole 11, the hook, no longer compressed, can return to its initial shape to engage with the inner wall of the connecting part. When the third connecting part 317 is provided with a third cavity 3171 and the fourth connecting part is provided with a fourth cavity, the fourth connecting part can easily extend into the mounting cavity 13 through the connecting hole 11.

[0071] Please refer to Figures 3 and 4. In some embodiments, the first connecting part 311 has a first cavity 3111 inside, the second connecting part 313 has a second cavity 3131 inside, the third connecting part 317 has a third cavity 3171 inside, and the fourth connecting part has a fourth cavity. The first cavity 3111, the second cavity 3131, the third cavity 3171, and the fourth cavity are connected, and the fourth cavity is connected to the outside. In this case, the connecting body 31 is easier to form, and the material used in the connecting body 31 is also less, which can save material costs. In addition, the overall weight of the connecting component 30 is also lower, so the earphone 1000 is lighter and easier to handle and carry, resulting in a better user experience.

[0072] Referring to Figure 5, the headphone system 10000 of this application embodiment includes the headphone 1000 and charging case 3000 of the above embodiment. The charging case 3000 is used to charge the headphone 1000. The charging case 3000 is provided with a charging compartment. When the headphone 1000 needs to be charged, the battery compartment 101 of the headphone 1000 can be accommodated in the charging compartment, and the charging case 3000 can charge the battery inside the battery compartment 101.

[0073] In the headphone system 10000 of this application embodiment, the connecting body 31 and the connector 33 are integrally molded using two-color injection molding. At least a portion of the connector 33 is fitted onto the connecting body 31 and protrudes in a direction away from the connecting body 31 to form an annular sealing portion 331. Compared to the current connecting structure 100, the connecting structure 100 of this application does not require an additional sealing ring, and the connection between the connecting component 30 and the mounting box 10 is simpler, effectively saving manpower and material costs. Furthermore, when the connecting component 30 is connected to the mounting box 10, the sealing portion 331 abuts against the side wall of the connecting hole 11, resulting in a higher connection strength between the connecting component 30 and the mounting box 10. The waterproof effect of the connecting structure 100 is also better, making it difficult for external liquids to flow into the mounting box 10 through the gap between the connecting component 30 and the side wall of the connecting hole 11.

[0074] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0075] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A connection structure, wherein, include: The mounting box is provided with a connection hole that communicates with the outside world; and A connecting assembly is provided, which is connected to the mounting box. The connecting hole is for the connecting assembly to extend into. The connecting assembly includes a connecting body and a connector. At least a portion of the connector is fitted onto the connecting body. The connecting body and the connector are integrally molded in two colors. At least a portion of the connector fitted onto the connecting body protrudes away from the connecting body to form an annular sealing portion. The sealing portion abuts against the sidewall of the connecting hole.

2. The connection structure according to claim 1, wherein, The hardness of the connecting body is greater than the hardness of the connecting component.

3. The connection structure according to claim 2, wherein, The connecting body is made of hard rubber, and the connecting piece is made of soft rubber.

4. The connection structure according to claim 1, wherein, The connector includes a body portion and a protruding portion that are connected together. The outer side of the protruding portion protrudes to form the sealing portion. The connecting body includes a first connecting portion and a second connecting portion that are connected together. The body portion is sleeved on the first connecting portion, and the protruding portion is sleeved on the second connecting portion. The first connecting portion has a protrusion extending toward the connector on the side near the second connecting portion. A recess is formed on the inner side of the body portion, and the protrusion and the recess are engaged.

5. The connection structure according to claim 4, wherein, Both the protrusion and the main body abut against the side wall of the mounting box.

6. The connection structure according to claim 4, wherein, The sealing portion includes multiple sealing portions, which are arranged at intervals along the extending direction of the protrusion.

7. The connection structure according to claim 4, wherein, A first boss is formed between the first connecting portion and the second connecting portion, and a second boss is formed between the body portion and the protrusion portion, and the first boss and the second boss cooperate.

8. The connection structure according to claim 4, wherein, The connecting body also includes a third connecting portion extending from the second connecting portion. The third connecting portion is connected to the sidewall of the connecting hole by a sealant. The outer sidewall of the third connecting portion is provided with a corrugated pattern, which is used to enhance the adhesion of the sealant.

9. The connection structure according to claim 8, wherein, The mounting box has a mounting cavity that communicates with the connecting hole; the connecting body also includes a fourth connecting part extending from the third connecting part, the fourth connecting part being a hook that extends into the mounting cavity to engage with the inner wall of the connecting hole.

10. The connection structure according to claim 8 or 9, wherein, The third connecting part has a third cavity inside; the connecting structure also includes a fixing member, a part of which extends into the third cavity, and the other part of which presses the third connecting part against the side wall of the connecting hole.

11. The connection structure according to claim 9, wherein, The third connecting part has a third cavity inside, and the fourth connecting part has a fourth cavity inside. The third cavity and the fourth cavity are connected. The fourth cavity is used to provide deformation space for the fourth connecting part to deform under force during the process of inserting it into the connecting hole. After the fourth connecting part is inserted into the position, the fourth connecting part returns to its initial shape to engage with the inner wall of the connecting hole.

12. The connection structure according to claim 9, wherein, The first connecting part has a first cavity inside, the second connecting part has a second cavity inside, the third connecting part has a third cavity inside, and the fourth connecting part has a fourth cavity. The first cavity, the second cavity, the third cavity and the fourth cavity are connected, and the fourth cavity is connected to the outside.

13. The connection structure according to claim 1, wherein, The sealing part is a closed annular structure; or, the sealing part is an intermittent annular structure.

14. The connection structure according to claim 1, wherein, The mounting box includes a battery box for holding batteries, a control box with control functions, and / or a transducer box with vibration functions.

15. The connection structure according to claim 1, wherein, The connection components include ear hooks and / or back hooks for the headphones.

16. [Correction 22.10.2025 based on Rule 91] An earphone, wherein, include: The connection structure according to any one of claims 1-15.

17. The headphones according to claim 16, wherein, The headphones include bone conduction headphones and air conduction headphones.

18. A headphone system, wherein, include: The headphones as claimed in claim 16 or 17; and A charging case for charging the earphones.

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