Connecting structure and earphone

Abstract

The application discloses a connecting structure and earphones. It relates to the technical field of smart wear. The connecting structure comprises an ear hook and a battery assembly. The ear hook comprises an ear hook body, the ear hook body comprises a first connecting part, the first connecting part comprises a plug-in subpart, and the plug-in subpart surrounds a plug-in cavity. The battery assembly comprises a battery shell and a support, the support is at least partially accommodated in the battery shell and fixedly connected with the battery shell, the battery shell surrounds the support and cooperates with the support to form a gap, the plug-in subpart is plugged into the gap, and at least part of the support is plugged into the plug-in cavity, so that the ear hook and the battery assembly are connected. The application can ensure that the battery assembly can be quickly detached from the ear hook, and the maintenance efficiency of the earphones is improved.

Description

Technical Field

[0001] This application relates to the field of smart wearable technology, and in particular to a connection structure and headphones. Background Technology

[0002] The ear hook body needs to be connected to both the battery casing of the battery pack and the transducer casing of the transducer assembly to achieve a mechanical connection between the battery pack, ear hook, and transducer assembly. However, currently, the connection between the ear hook body and the battery casing requires a relatively complex connection structure, making it difficult to disassemble the ear hook from the battery pack. When components such as the battery or circuit board inside the battery pack are damaged, repair personnel need to spend a considerable amount of time disassembling the battery pack from the ear hook, which reduces repair efficiency. Utility Model Content

[0003] This application provides a connection structure and an earphone. When the battery component of the earphone malfunctions and needs to be replaced or repaired, the repair personnel can quickly remove the battery component from the ear hook, thereby greatly improving the repair efficiency of the repair personnel.

[0004] The connection structure of this application includes an ear hook and a battery assembly. The ear hook includes an ear hook body, which includes a first connecting portion, the first connecting portion including a plug-in portion, the plug-in portion forming a plug-in cavity; the battery assembly includes a battery shell and a bracket, the bracket being at least partially housed within the battery shell and fixedly connected to the battery shell, the battery shell surrounding the bracket and cooperating with the bracket to form a gap, the plug-in portion being inserted into the gap, and at least a portion of the bracket being inserted into the plug-in cavity, thereby connecting the ear hook and the battery assembly.

[0005] In some embodiments, the gap is filled with adhesive.

[0006] In some embodiments, the battery casing has an opening, the gap faces the opening, and the opening allows the plug-in portion to be inserted into the gap; the bracket includes a first sub-bracket and a second sub-bracket, the second sub-bracket being connected to the first sub-bracket, the first sub-bracket being closer to the opening than the second sub-bracket, and the outer contour of the first sub-bracket being smaller than the outer contour of the second sub-bracket, so as to form the gap between the first sub-bracket and the sidewall of the battery casing.

[0007] In some embodiments, the outer peripheral wall of the first sub-support is provided with an adhesive overflow groove, which is located within the gap and configured to receive the adhesive.

[0008] In some embodiments, the plug portion is interference-fitted with the gap; and / or, at least a portion of the bracket is interference-fitted with the plug cavity.

[0009] In some embodiments, the bracket is provided with a first limiting part, and the inner wall of the insertion cavity is provided with a second limiting part. The first limiting part and the second limiting part cooperate to restrict the ear hook from rotating relative to the battery assembly.

[0010] In some embodiments, the ear hook body further includes an ear hook shell, which includes a body portion and an extension portion. The body portion includes a first end and a second end opposite to each other, and has a hollow cavity penetrating the first end and the second end of the body portion. A portion of the first connecting portion is disposed in the hollow cavity and located at the first end of the body portion. The plug-in portion extends out of the hollow cavity. The extension portion is disposed at the first end of the body portion and forms a semi-enclosed cavity with the first end of the body portion. The extension portion is connected to the outer side of the sidewall of the battery case. The battery case is accommodated in the semi-enclosed cavity and forms a smooth connection with the ear hook shell.

[0011] In some embodiments, the outer sidewall of the battery casing is provided with a first mating surface, a first protrusion, and a first groove. The first protrusion protrudes away from the center of the battery casing relative to the first mating surface, and the first groove is formed by the first mating surface being recessed towards the center of the battery casing. The first groove is further away from the main body than the first protrusion. The extension is provided with a second mating surface, a second protrusion, and a second groove facing the semi-enclosed cavity. The second protrusion protrudes towards the battery casing relative to the second mating surface, and the second groove is formed by the second mating surface being recessed away from the battery casing. The first mating surface and the second mating surface are seamlessly connected. The first protrusion is accommodated in the second groove, and the second protrusion is accommodated in the second groove.

[0012] In some embodiments, the end face of the sidewall of the battery casing is smoothly connected to the first mating surface, the end face of the body portion is smoothly connected to the second mating surface, and the end face of the sidewall of the battery casing is seamlessly connected to the end face of the body portion.

[0013] This application also provides an earphone, which includes a transducer assembly and a connection structure as described in any of the above embodiments, wherein the connection structure is connected to the transducer assembly.

[0014] This application provides a connection structure including an ear hook and a battery assembly. The ear hook includes an ear hook body, which includes a first connecting portion and a plug-in portion for connecting with the battery assembly. The battery assembly includes a battery casing and a bracket at least partially housed within the battery casing. The bracket is fixedly connected to the battery casing, and the battery casing surrounds and cooperates with the bracket to form a gap. The plug-in portion is inserted into the gap, and at least a portion of the bracket is inserted into a plug-in cavity formed by the plug-in portion, thereby connecting the ear hook and the battery assembly. This application achieves the connection between the ear hook and the battery assembly by providing a plug-in portion on the ear hook body that can be plugged into the gap of the battery assembly. The bracket of the battery assembly is also inserted into the plug-in cavity formed by the plug-in portion, thus establishing a plug-in relationship between the ear hook and the battery assembly. This plug-in connection method facilitates insertion and removal, allowing maintenance personnel to quickly disassemble the battery assembly when needed for repair, thereby improving maintenance efficiency.

[0015] 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

[0016] 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:

[0017] Figure 1 This is a schematic diagram of the structure of an earphone including a connection structure according to some embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the structure of an earphone including a connection structure according to some embodiments of this application;

[0019] Figure 3 This is a schematic diagram of the structure of a battery assembly according to some embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the structure of the ear hook body according to some embodiments of this application;

[0021] Figure 5 This is a structural schematic diagram of the bracket according to some embodiments of this application;

[0022] Figure 6 This is a schematic diagram of the battery casing according to some embodiments of this application.

[0023] Explanation of key component symbols:

[0024] Headphones 10000;

[0025] Connection structure 1000;

[0026] Battery assembly 100;

[0027] Battery casing 10; opening 14; first mating surface 15; first protrusion 16; first groove 17;

[0028] 30; first limiting part 33; first sub-support 34; overflow groove 341; second sub-support 35; gap 36;

[0029] Ear hooks 200;

[0030] Ear hook body 50; ear hook shell 51; body portion 511; first end 5111; second end 5112; hollow cavity 5113; extension portion 513; second mating surface 514; second protrusion portion 515; second groove 516; first connecting portion 52; plug-in portion 521; plug-in cavity 5211; second limiting portion 5212;

[0031] Transducer assembly 300;

[0032] Transducer shell 70. Detailed Implementation

[0033] 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.

[0034] In the description of this application, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] 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.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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.

[0037] 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.

[0038] The ear hook is a core mechanical connection hub in ear-hook headphones. It needs to be securely connected to the battery pack's housing (i.e., the battery casing) and also to the transducer assembly's housing (i.e., the transducer casing). This connection between the battery pack, ear hook, and transducer assembly is fundamental to the headphone's structural integrity and wearing stability. The battery pack provides a connection point through the battery casing, the transducer assembly through the transducer casing, and the ear hook itself acts as a bridge, establishing tight and reliable mechanical coupling with the housings of both the battery pack and the transducer assembly at its ends. This mechanical coupling must withstand the tensile and bending loads of daily use, while ensuring the reliable connection of the acoustic signal transmission lines (which typically run through the ear hook). Therefore, the reliability and maintainability of this connection structure are crucial. However, current ear-hook headphone designs face a significant technical challenge in this area, primarily in the connection between the ear hook and the battery casing. To achieve a stable connection between the two components, existing technologies are forced to employ relatively complex connection structures. This complexity typically involves a combination of numerous small internal components, precise snap-fit ​​designs, concealed screw holes, or locking mechanisms requiring specific tools. This directly results in insurmountable obstacles to disassembly between the ear hook and the battery assembly. When repair personnel face situations requiring separation of the ear hook and battery assembly for repair or replacement (e.g., when components such as the battery or circuit board inside the battery assembly malfunction), the disassembly process becomes exceptionally cumbersome and time-consuming. Operators may need to carefully locate hidden snap-fit ​​positions, use special tools to precisely pry open specific areas, or remove extremely small, easily lost fixing screws. The efficiency and cost of repair depend on whether the battery assembly can be disassembled quickly and without damage. Therefore, the direct consequence of this structural disassembly difficulty is a significant reduction in repair efficiency. The extended repair cycle also means a longer interruption to the user experience (requiring more time without headphone service), and it also leads to a significant consumption of manpower and time resources at repair service points in the disassembly process, indirectly increasing maintenance costs. Therefore, how to improve the connection method between the ear hook and the battery assembly in existing technologies to increase the speed at which repair personnel can remove the battery assembly from the ear hook, thereby improving repair efficiency, reducing repair costs, and enhancing the user experience, has become a pressing problem for those skilled in the art. To solve these problems, this application provides a connection structure 1000 (e.g., Figure 1 (as shown) and headphones 10000.

[0039] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4The connection structure 1000 of this application embodiment includes an ear hook 200 and a battery assembly 100. The ear hook 200 includes an ear hook body 50, which includes a first connecting portion 52. The first connecting portion 52 includes a plug-in portion 521, which forms a plug-in cavity 5211. The battery assembly 100 includes a battery case 10 and a bracket 30. The bracket 30 is at least partially housed within the battery case 10 and is fixedly connected to the battery case 10. The battery case 10 surrounds the bracket 30 and cooperates with the bracket 30 to form a gap 36. The plug-in portion 521 is inserted into the gap 36, and at least a portion of the bracket 30 is inserted into the plug-in cavity 5211, so that the ear hook 200 and the battery assembly 100 are connected.

[0040] Specifically, the connection structure 1000 is a mechanical structure that enables bidirectional insertion between the ear hook body 50 and the battery assembly 100. The connection position between the ear hook body 50 and the battery assembly 100 is formed by the insertion part 521 of the ear hook body 50 and the gap 36 structure of the battery assembly 100. The insertion part 521 of the ear hook 200 is inserted into the gap 36 of the battery assembly 100 (the gap 36 is formed by the cooperation of the battery shell 10 and the bracket 30), and the bracket 30 part of the battery assembly 100 is inserted into the insertion cavity 5211 of the ear hook 200 in the opposite direction.

[0041] Specifically, the ear hook 200 is the main body of the earphone 10000 used to hook the ear. The ear hook 200 also serves as the connection carrier between the battery assembly 100 and the transducer assembly 300. The ear hook 200 includes an ear hook body 50 and a first connecting part 52 integrated on the ear hook body 50.

[0042] Specifically, the battery assembly 100 is an energy component that powers the headphones 10000. The battery assembly 100 can serve as a base for electrical connection between various circuit components and other parts of the headphones 10000. The battery assembly 100 includes a battery case 10 and an internal support 30.

[0043] Furthermore, the ear hook body 50 is the main structural part of the ear hook 200. The ear hook body 50 enables the wearing function of the earphone 10000 and serves as a mechanical bridge connecting the battery assembly 100 and the transducer assembly 300. The ear hook body 50 is the core component of the ear hook 200, responsible for the wearing stability of the earphone 10000, and connects to the battery assembly 100 through its first connecting part 52. The ear hook body 50 needs to balance wearing comfort, structural strength, and connection reliability.

[0044] Furthermore, the first connecting portion 52 is a key structure on the ear hook body 50, used to achieve a mechanical connection between the ear hook 200 and the battery assembly 100. The first connecting portion 52 extends from the ear hook body 50 towards the battery assembly 100, and serves as the direct interface for connecting the ear hook body 50 and the battery assembly 100. The first connecting portion 52 includes a plug-in portion 521, which engages with the gap 36 in the battery assembly 100, thereby achieving a stable connection between the ear hook 200 and the battery assembly 100.

[0045] Furthermore, the plug-in portion 521 is a structure in the first connecting portion 52 used to mate with the gap 36 of the battery assembly 100. The plug-in portion 521 enables the initial connection between the ear hook 200 and the battery assembly 100. The plug-in portion 521 is inserted into the gap 36 formed by the engagement of the battery case 10 and the bracket 30, thereby achieving the initial connection between the ear hook 200 and the battery assembly 100. The plug-in portion 521 forms a plug-in cavity 5211, which is a cavity formed by the plug-in portion 521. The plug-in cavity 5211 can be used to accommodate at least a portion of the bracket 30 of the battery assembly 100, so as to further strengthen the connection between the ear hook 200 and the battery assembly 100 and prevent the battery assembly 100 from falling off the ear hook 200 due to external impact. The insertion cavity 5211 is the internal space enclosed by the insertion part 521, therefore the shape and size design of the insertion part 521 and the insertion cavity 5211 need to match the bracket 30.

[0046] Furthermore, the battery housing 10 is the external supporting housing of the battery assembly 100. The battery housing 10 can be injection molded from a rigid polymer material, made of an alloy material, or made of corrosion-resistant metals such as pure titanium. The battery housing 10 has a mechanical interface function. As the core outer covering of the battery assembly 100, the battery housing 10 has a bracket 30 fixed inside and houses electronic components such as batteries and circuit boards. The sidewalls of the battery housing 10 are streamlined curved surfaces that connect with the ear hook body 50. The battery housing 10 can protect the internal electronic components from physical impact and environmental corrosion.

[0047] Furthermore, the bracket 30 is a structure embedded in the battery casing 10. The bracket 30 can be made of composite materials, corrosion-resistant metals, or alloys. The bracket 30 serves to transmit mechanical loads and control connection precision. When the bracket 30 is inserted into the insertion cavity 5211, it generates a gripping force at the moment of insertion, thereby ensuring a stable connection between the bracket 30 and the insertion cavity 5211. This further strengthens the connection between the battery assembly 100 and the ear hook 200, preventing the battery assembly 100 from falling off the ear hook 200 due to external impact.

[0048] Furthermore, the gap 36 is a three-dimensional cavity defined by the inner wall of the battery case 10 and the outer contour of the bracket 30. The shape of the gap 36 matches the outer surface of the plug part 521. The gap 36 acts as a channel for physical engagement in the axial connection and provides a space for the connection medium such as adhesive, so as to further strengthen the connection between the battery assembly 100 and the ear hook 200 and prevent the battery assembly 100 from falling off the ear hook 200 due to external impact.

[0049] It is understood that this application provides a connection structure 1000, which includes an ear hook 200 and a battery assembly 100. The ear hook 200 includes an ear hook body 50, which includes a first connecting portion 52. The first connecting portion 52 includes a plug-in portion 521 for connecting with the battery assembly 100. The battery assembly 100 includes a battery housing 10 and a bracket 30 at least partially housed within the battery housing 10. The bracket 30 is fixedly connected to the battery housing 10. The battery housing 10 surrounds the bracket 30 and cooperates with the bracket 30 to form a gap 36. The plug-in portion 521 is inserted into the gap 36, and at least a portion of the bracket 30 is inserted into a plug-in cavity 5211 formed by the plug-in portion 521, thereby connecting the ear hook 200 and the battery assembly 100. This application achieves the connection between the ear hook 200 and the battery assembly 100 by providing a plug-in part 521 on the ear hook body 50 that can be plugged into the gap 36 of the battery assembly 100. The bracket 30 of the battery assembly 100 is also plugged into the plug-in cavity 5211 surrounded by the plug-in part 521, thus forming a plug-in relationship between the ear hook 200 and the battery assembly 100. This plug-in connection method is convenient for insertion and removal. When maintenance personnel need to remove the battery assembly 100 for maintenance, they can quickly remove the battery assembly 100, thereby improving maintenance efficiency.

[0050] Please see Figure 2 In some embodiments, the gap 36 is filled with adhesive.

[0051] Specifically, the adhesive is a high-molecular polymer adhesive that fills the connection gap 36 between the ear hook 200 and the battery assembly 100. The adhesive forms mechanical interlocking and chemical bonding force through a curing reaction, thereby achieving semi-permanent reinforcement between the ear hook 200 plug part 521, the battery case 10, and the bracket 30. The adhesive is used to strengthen the stability of the mechanical plug structure while retaining controllable disassembly (for example, the adhesive can be melted by heating, and after the adhesive melts, the operator can easily remove the battery assembly 100 from the ear hook 200).

[0052] Furthermore, the adhesive can be made from materials such as epoxy resin adhesive, curing adhesive, and hot melt pressure-sensitive adhesive. The adhesive needs to have reversible curing properties (for example, it has high shear strength after curing, but softens or melts when heated to a certain temperature, such as 80 degrees Celsius, at which point only a small pulling force is needed to separate the two objects bonded by the adhesive) and a certain degree of fluidity (to ensure that the adhesive fully fills the gap 36), and also needs to have a certain degree of environmental resistance.

[0053] Please see Figure 2 , Figure 3 and Figure 4 In some embodiments, the battery casing 10 has an opening 14, and a gap 36 faces the opening 14. The opening 14 allows the plug-in part 521 to be inserted into the gap 36. The bracket 30 includes a first sub-bracket 34 and a second sub-bracket 35. The second sub-bracket 35 is connected to the first sub-bracket 34. The first sub-bracket 34 is closer to the opening 14 than the second sub-bracket 35. The outer contour of the first sub-bracket 34 is smaller than the outer contour of the second sub-bracket 35, so as to form a gap 36 between the first sub-bracket 34 and the side wall of the battery casing 10.

[0054] Specifically, the opening 14 is a window structure on the battery case 10. The opening 14 can be any shape such as rectangular, circular, or elliptical. The opening 14 is located at one end of the battery case 10 near the ear hook 200. The opening 14 is used as a physical channel for the insertion gap 36 of the plug part 521. The outline of the opening 14 matches the outline of the plug part 521.

[0055] Furthermore, the first sub-support 34 is the part of the support 30 that is adjacent to the opening 14 of the battery case 10. The first sub-support 34 can be made of corrosion-resistant metal, corrosion-resistant alloy or composite material. The outer contour dimension of the first sub-support 34 is smaller than the outer contour dimension of the second sub-support 35, so that when the support 30 is installed on the inner side wall of the battery case 10, a gap 36 with a certain volume is formed between the first sub-support 34 and the battery case 10.

[0056] Furthermore, the second sub-bracket 35 is the part of the bracket 30 that is away from the opening 14 of the battery case 10. The second sub-bracket 35, through its connection with the first sub-bracket 34, can provide a certain rigidity guarantee for the entire bracket 30, thereby preventing the bracket 30 from being damaged by external force when the earphone 10000 is subjected to external impact.

[0057] Please see Figure 2 and Figure 6 In some embodiments, the outer peripheral wall of the first sub-support 34 is provided with an adhesive overflow groove 341, which is located within the gap 36 and is configured to accommodate adhesive.

[0058] Specifically, the outer peripheral wall of the first sub-support 34 is the outer annular surface of the support 30 near the opening 14. The outer peripheral wall of the first sub-support 34 serves as the inner boundary of the gap 36. When the gap 36 is configured to accommodate adhesive, it directly contacts and guides the flow of the adhesive, while also bearing the radial support load when the plug-in part 521 is inserted. The outer peripheral wall of the first sub-support 34, enclosed by the inner wall of the battery casing 10, forms the main cavity of the adhesive filling chamber. The geometry of the outer peripheral wall of the first sub-support 34 determines the uniformity of the adhesive distribution, thereby determining the connection strength between the ear hook 200 and the battery assembly 100.

[0059] Furthermore, the outer peripheral wall of the first sub-support 34 has a slightly smaller profile dimension than the inner wall of the battery case 10. The annular cavity defined by the outer peripheral wall of the first sub-support 34 and the inner wall of the battery case 10 is the receiving space (gap 36) for accommodating the adhesive. When the plug-in part 521 is inserted into the gap 36, the outer peripheral wall directly bears the radial pressure, thereby ensuring that the plug-in part 521 will not easily come out of the gap 36.

[0060] Furthermore, the overflow groove 341 is a recessed structure on the outer peripheral wall of the first sub-support 34. The overflow groove 341 can be embedded in the gap 36 through an annular groove or recess. The overflow groove 341 can accommodate excess glue during the glue injection process, thereby achieving self-balancing adjustment of the glue layer thickness.

[0061] Please see Figure 3 and Figure 5 In some embodiments, the plug portion 521 is interference-fitted with the gap 36; and / or, at least a portion of the bracket 30 is interference-fitted with the plug cavity 5211.

[0062] Specifically, the outer contour dimension of the plug-in portion 521 is slightly larger than the inner diameter of the gap 36 (the inner diameter of the cavity formed by the battery case 10 and the first sub-support 34). When the plug-in portion 521 is inserted into the gap 36, the plug-in portion 521 presses against the inner wall of the battery case 10 or the first sub-support 34, causing elastic deformation in both and generating radial pressure. This radial pressure creates continuous frictional resistance between the interface of the plug-in portion 521 and the gap 36, thereby achieving screwless locking.

[0063] Specifically, when the bracket 30 (especially the first sub-bracket 34) is inserted into the insertion cavity 5211 of the ear hook 200, the size of the insertion portion of the bracket 30 is slightly larger than the inner diameter of the insertion cavity 5211. During the insertion of the bracket 30, the inner wall of the bracket 30 or the insertion cavity 5211 undergoes controllable elastic deformation, forming a circumferential clamping force between the interface between the bracket 30 and the insertion cavity 5211, thereby achieving screwless locking.

[0064] Please see Figure 1 , Figure 4 and Figure 5 In some embodiments, the bracket 30 is provided with a first limiting part 33, and the inner wall of the insertion cavity 5211 is provided with a second limiting part 5212. The first limiting part 33 and the second limiting part 5212 cooperate to restrict the ear hook 200 from rotating relative to the battery assembly 100.

[0065] Specifically, the first limiting part 33 is a mechanical limiting structure on the bracket 30. The first limiting part 33 can be in the form of a protrusion or a groove. The first limiting part 33 and the second limiting part 5212 on the inner wall of the insertion cavity 5211 form a matching geometric relationship, thereby preventing the ear hook 200 from rotating relative to the battery assembly 100.

[0066] More specifically, the first limiting part 33 can be a protrusion or a groove structure on the bracket 30, and the first limiting part 33 is located in the area where the bracket 30 contacts the insertion cavity 5211. When the insertion part 521 of the ear hook 200 is inserted into the gap 36 of the battery assembly 100, the first limiting part 33 and the second limiting part 5212 on the inner wall of the insertion cavity 5211 cooperate with each other to form a mechanical locking relationship. This mechanical locking relationship not only prevents rotation between the ear hook 200 and the battery assembly 100, but also enhances the stability of the connection. In this way, the first limiting part 33 ensures that the relative position between the ear hook 200 and the battery assembly 100 is fixed, avoiding loosening of the connection between the ear hook 200 and the battery assembly 100 due to rotation or causing the battery assembly 100 to malfunction.

[0067] Furthermore, the second limiting part 5212 is a mechanical limiting structure on the inner wall of the insertion cavity 5211. The second limiting part 5212 can be a groove or a protrusion structure. The second limiting part 5212 and the first limiting part 33 on the bracket 30 form a matching geometric relationship. After the second limiting part 5212 and the first limiting part 33 on the bracket 30 are matched, the ear hook 200 can be prevented from rotating relative to the battery assembly 100.

[0068] Furthermore, the second limiting part 5212 is located on the inner wall of the insertion cavity 5211. The second limiting part 5212 can be a groove or a protrusion structure, and it cooperates with the first limiting part 33 on the bracket 30. When the insertion part 521 of the ear hook 200 is inserted into the gap 36 of the battery assembly 100, the second limiting part 5212 and the first limiting part 33 interact to form a mechanical locking relationship. This mechanical locking relationship not only prevents rotation between the ear hook 200 and the battery assembly 100, but also enhances the stability of the connection. In this way, the second limiting part 5212 ensures that the relative position between the ear hook 200 and the battery assembly 100 is fixed, preventing the connection between the ear hook 200 and the battery assembly 100 from loosening or causing the battery assembly 100 to malfunction due to rotation. The design of the cooperation between the first limiting part 33 and the second limiting part 5212 not only improves the reliability of the connection structure 1000, but also simplifies the maintenance and disassembly process, making the maintenance of the earphone 10000 more efficient and convenient.

[0069] Please see Figure 2 and Figure 4 In some embodiments, the ear hook body 50 further includes an ear hook shell 51. The ear hook shell 51 includes a body portion 511 and an extension portion 513. The body portion 511 includes a first end 5111 and a second end 5112 opposite to each other, and has a hollow cavity 5113 that passes through the first end 5111 and the second end 5112 of the body portion 511. A portion of the first connecting portion 52 is disposed in the hollow cavity 5113 and is located at the first end 5111 of the body portion 511. The plug-in portion 521 extends out of the hollow cavity 5113. The extension portion 513 is disposed at the first end 5111 of the body portion 511 and forms a semi-enclosed cavity with the first end 5111 of the body portion 511. The extension portion 513 is connected to the outer side of the side wall of the battery case 10. The battery case 10 is accommodated in the semi-enclosed cavity and forms a smooth connection with the ear hook shell 51.

[0070] Specifically, the ear hook shell 51 is the core load-bearing structure of the ear hook body 50. The ear hook shell 51 can be injection molded from a rigid polymer material, made of an alloy material, or made of corrosion-resistant metals such as pure titanium. The ear hook shell 51 includes two main functional blocks: the body portion 511 and the extension portion 513. The ear hook shell 51 accommodates other connecting components through its internal cavity, while its external curved surface seamlessly couples with the battery casing 10. The ear hook shell 51 serves to construct a mechanical conduction path and a protective space for electronic components, and acts as a physical carrier for adapting the ear hook 200 to the contours of the human ear, thereby improving user comfort.

[0071] Specifically, the ear hook shell 51 includes a main body 511 and an extension 513. The main body 511 is a hollow main structure that runs through both ends of the ear hook shell 51, serving as the mounting base and mechanical conductor for the acoustic transducer 300. The extension 513 is an extension structure that extends from the main body of the ear hook shell 51 away from the main body 511. The extension 513 extends outward from the first end 5111 of the main body 511, forming a semi-enclosed cavity that surrounds the upper half of the battery shell 10. The inner curved surface of the extension 513 conformally fits the outer side wall of the battery shell 10, achieving a strong connection through a combination of mechanical interlocking and adhesive, and also providing a smooth transition in appearance.

[0072] Specifically, the first end 5111 is the end of the ear hook shell 51 body 511 adjacent to the battery assembly 100. The first end 5111 is used to receive the plug part 521 and connect the extension part 513 to form a semi-enclosed structure, and serves as the entrance for the sound wave and cable transmission channel of the hollow cavity 5113, while also undertaking the task of transmitting the dynamic load of the battery assembly 100. The second end 5112 is the terminal structure in the body 511 away from the battery assembly 100, and the second end 5112 serves as the support base of the transducer assembly 300. The second end 5112 is connected to the transducer shell 70 of the transducer assembly 300. The second end 5112 can connect to the first end 5111 through the hollow cavity 5113, thereby forming a continuous sound waveguide and cable path. The second end 5112 can also convert the wearing pressure of the ear hook 200 into a uniformly distributed curved surface load.

[0073] Furthermore, the semi-enclosed cavity is a semi-open enclosing space constructed by the extension 513 and the first end 5111 of the main body 511. The semi-enclosed cavity dynamically locks the outer side wall of the battery case 10 through three-way enclosure.

[0074] Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 In some embodiments, the outer sidewall of the battery casing 10 is provided with a first mating surface 15, a first protrusion 16, and a first groove 17. The first protrusion 16 protrudes away from the center of the battery casing 10 relative to the first mating surface 15, and the first groove 17 is formed by the first mating surface 15 recessing towards the center of the battery casing 10. The first groove 17 is further away from the body portion 511 than the first protrusion. The extension portion 513 is provided with a second mating surface 514, a second protrusion 515, and a second groove 516 facing the semi-enclosed cavity. The second protrusion 515 protrudes towards the battery casing 10 relative to the second mating surface 514, and the second groove 516 is formed by the second mating surface 514 recessing away from the battery casing 10. The first mating surface 15 and the second mating surface 514 are seamlessly connected. The first protrusion 16 is accommodated in the second groove 516, and the second protrusion 515 is accommodated in the second groove 516.

[0075] Specifically, the first mating surface 15 is a reference plane or continuous curved surface on the outer side wall of the battery case 10. The first mating surface 15 can serve as the main contact interface for fitting with the second mating surface 514 of the extension 513. The function of the first mating surface 15 is to provide a uniform bearing substrate for the adhesive layer, and at the same time, to achieve morphological continuity between the battery case 10 and the ear hook case 51 through seamless connection, eliminating the step difference in appearance.

[0076] Specifically, the first protrusion 16 is a reinforcing structure that protrudes from the first mating surface 15 toward the center away from the battery case 10. The first protrusion 16 is used as an active insert for mechanical interlocking. The outline of the first protrusion 16 is conjugately matched with the second groove 516 of the extension 513. When inserted, the first protrusion 16 can undergo elastoplastic deformation to absorb assembly tolerances and form a pull-out resistant physical snap after springback.

[0077] Specifically, the first groove 17 is a guide cavity formed by the first mating surface 15 recessed toward the center of the battery case 10. The outline of the first groove 17 and the second protrusion 515 of the extension 513 complement each other. The radial displacement and deflection between the battery case 10 and the ear hook case 51 are restricted by the three-dimensional curved surface constraint. When the adhesive is contained in the semi-enclosed cavity, the first groove 17 can also provide a channel for the excess adhesive.

[0078] Specifically, the second mating surface 514 is a reference receiving plane or conformal curved surface of the extension 513 facing the semi-enclosed cavity. The second mating surface 514 serves as an active matching interface for seamlessly fitting with the first mating surface 15 of the battery housing 10. The functions of the second mating surface 514 include constructing an adhesive flow pressure equalization surface, dispersing mechanical loads, and eliminating the assembly step difference after the battery housing 10 and ear hook shell 51 are assembled through morphological continuity, so that the battery housing 10 and ear hook shell 51 are visually integrated into a single shape.

[0079] Specifically, the second protrusion 515 is an elastic interlocking structure that protrudes from the second mating surface 514 toward the battery case 10. The three-dimensional contour of the second protrusion 515 is conjugate and complementary to the first groove 17 of the battery case 10. The second protrusion 515 absorbs manufacturing tolerances through controllable compression deformation during insertion and forms a bidirectional mechanical latch that resists pulling and torsion after springback.

[0080] Specifically, the second groove 516 is a geometric cavity recessed from the second mating surface 514 in a direction away from the battery case 10. The second groove 516 serves as the nesting space for the first protrusion 16 of the battery case 10, and can also form a pull-out resistant structure by interfering with the protrusion through the side wall inclination angle.

[0081] Please see Figure 4 and Figure 6In some embodiments, the end face of the side wall of the battery case 10 is smoothly connected to the first mating surface 15, the end face of the body portion 511 is smoothly connected to the second mating surface 514, and the end face of the side wall of the battery case 10 is seamlessly connected to the end face of the body portion 511.

[0082] Specifically, the sidewall end face of the battery case 10 smoothly transitions to the first mating surface 15, eliminating any step difference or abrupt change in contour between the battery case 10 and the ear hook shell 51. This enhances the overall streamlined appearance of the earphone 10000 and reduces stress concentration. Simultaneously, the smooth connection between the end face of the body portion 511 and the second mating surface 514 ensures structural continuity, eliminating any step difference or abrupt change in contour between the battery case 10 and the ear hook shell 51, further enhancing the overall streamlined appearance of the earphone 10000 and reducing stress concentration. The seamless connection between the sidewall end face of the battery case 10 and the end face of the body portion 511 creates a unified visual and tactile effect, enhancing the product's premium feel and wearing comfort, and improving the user experience.

[0083] In summary, this application provides a connection structure 1000, which includes an ear hook 200 and a battery assembly 100. The ear hook 200 includes an ear hook body 50, which includes a first connecting portion 52. The first connecting portion 52 includes a plug-in portion 521 for connecting with the battery assembly 100. The battery assembly 100 includes a battery casing 10 and a bracket 30 at least partially housed within the battery casing 10. The bracket 30 is fixedly connected to the battery casing 10. The battery casing 10 surrounds the bracket 30 and forms a gap 36 with the bracket 30. The plug-in portion 521 is inserted into the gap 36, and at least a portion of the bracket 30 is inserted into a plug-in cavity 5211 formed by the plug-in portion 521, thereby connecting the ear hook 200 and the battery assembly 100. This application achieves the connection between the ear hook 200 and the battery assembly 100 by providing a plug-in part 521 on the ear hook body 50 that can be plugged into the gap 36 of the battery assembly 100. The bracket 30 of the battery assembly 100 is also plugged into the plug-in cavity 5211 surrounded by the plug-in part 521, thus forming a plug-in relationship between the ear hook 200 and the battery assembly 100. This plug-in connection method is convenient for insertion and removal. When maintenance personnel need to remove the battery assembly 100 for maintenance, they can quickly remove the battery assembly 100, thereby improving maintenance efficiency.

[0084] In some embodiments, this application also provides an earphone 10000, which includes a transducer 300 and a connection structure 1000 in any of the above embodiments, wherein the connection structure 1000 is connected to the transducer 300.

[0085] In summary, this application provides an earphone 10000, which includes a transducer 300 and a connection structure 1000 connected to the transducer 300. The connection structure 1000 includes an ear hook 200 and a battery assembly 100. The ear hook 200 includes an ear hook body 50, which includes a first connecting portion 52. The first connecting portion 52 includes a plug-in portion 521 for connecting with the battery assembly 100. The battery assembly 100 includes a battery housing 10 and a bracket 30 at least partially housed within the battery housing 10. The bracket 30 is fixedly connected to the battery housing 10. The battery housing 10 surrounds the bracket 30 and forms a gap 36 with the bracket 30. The plug-in portion 521 is inserted into the gap 36, and at least a portion of the bracket 30 is inserted into a plug-in cavity 5211 formed by the plug-in portion 521, thereby connecting the ear hook 200 and the battery assembly 100. This application achieves the connection between the ear hook 200 and the battery assembly 100 by providing a plug-in part 521 on the ear hook body 50 that can be plugged into the gap 36 of the battery assembly 100. The bracket 30 of the battery assembly 100 is also plugged into the plug-in cavity 5211 surrounded by the plug-in part 521, thus forming a plug-in relationship between the ear hook 200 and the battery assembly 100. This plug-in connection method is convenient for insertion and removal. When maintenance personnel need to remove the battery assembly 100 for maintenance, they can quickly remove the battery assembly 100, thereby improving maintenance efficiency.

[0086] The technical features of the above embodiments 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. At the same time, other implementation methods can be derived from the above embodiments, so that structural and logical substitutions and changes can be made without departing from the scope of this disclosure.

[0087] The above embodiments merely illustrate 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, characterized in that, include: An ear hook, including an ear hook body, the ear hook body including a first connecting part, the first connecting part including a plug sub-part, the plug sub-part forming a plug cavity; and A battery assembly includes a battery housing and a bracket, the bracket being at least partially housed within the battery housing and fixedly connected to the battery housing, the battery housing surrounding the bracket and engaging with the bracket to form a gap, a plug-in portion being inserted into the gap, and at least a portion of the bracket being inserted into the plug-in cavity to connect the ear hook and the battery assembly.

2. The connection structure according to claim 1, characterized in that, The gap is filled with adhesive.

3. The connection structure according to claim 2, characterized in that, The battery casing has an opening, the gap faces the opening, and the opening allows the plug-in part to be inserted into the gap; the bracket includes: First sub-bracket; and A second sub-bracket is connected to the first sub-bracket, the first sub-bracket being closer to the opening than the second sub-bracket, and the outer contour of the first sub-bracket being smaller than the outer contour of the second sub-bracket, so as to form the gap between the first sub-bracket and the sidewall of the battery case.

4. The connection structure according to claim 3, characterized in that, The outer peripheral wall of the first sub-support is provided with an overflow groove, which is located within the gap and is configured to accommodate the adhesive.

5. The connection structure according to claim 1, characterized in that, The plug portion is interference-fitted with the gap; and / or, at least a portion of the bracket is interference-fitted with the plug cavity.

6. The connection structure according to claim 1, characterized in that, The bracket is provided with a first limiting part, and the inner wall of the insertion cavity is provided with a second limiting part. The first limiting part and the second limiting part cooperate to restrict the ear hook from rotating relative to the battery assembly.

7. The connection structure according to claim 1, characterized in that, The ear hook body also includes: An ear hook shell includes a body and an extension. The body includes a first end and a second end opposite to each other, and has a hollow cavity penetrating the first end and the second end of the body. A portion of the first connecting part is disposed in the hollow cavity and located at the first end of the body. The plug-in part extends out of the hollow cavity. The extension is disposed at the first end of the body and forms a semi-enclosed cavity with the first end of the body. The extension is connected to the outer side of the sidewall of the battery case. The battery case is housed in the semi-enclosed cavity and forms a smooth connection with the ear hook shell.

8. The connection structure according to claim 7, characterized in that, The outer side of the sidewall of the battery case is provided with a first mating surface, a first protrusion and a first groove. The first protrusion protrudes away from the center of the battery case relative to the first mating surface. The first groove is formed by the first mating surface being recessed towards the center of the battery case. The first groove is further away from the main body than the first protrusion. The extension portion is provided with a second mating surface, a second protrusion and a second groove facing the semi-enclosed cavity. The second protrusion protrudes towards the battery case relative to the second mating surface, and the second groove is formed by the second mating surface being recessed away from the battery case. The first mating surface and the second mating surface are seamlessly connected. The first protrusion is accommodated in the second groove, and the second protrusion is accommodated in the second groove.

9. The connection structure according to claim 8, characterized in that, The end face of the side wall of the battery case is smoothly connected to the first mating surface, the end face of the main body is smoothly connected to the second mating surface, and the end face of the side wall of the battery case is seamlessly connected to the end face of the main body.

10. An earphone, characterized in that, include: Transducer assembly; and The connection structure according to any one of claims 1-9, wherein the connection structure is connected to the transducer component.

Images