A headset

Abstract

The earphone provided by the application relates to the technical field of earphone devices, and comprises a connecting piece and a sound-producing piece. The connecting piece has a first end, and the wall surface of the first end is provided with a first limiting structure. The sound-producing piece comprises a shell, the shell is provided with a first connecting hole, and the inner wall of the first connecting hole is provided with a second limiting structure. The first end of the connecting piece extends into the first connecting hole. The first limiting structure is arranged in a first position and is arranged in a first connecting hole in a circumferential direction. The first limiting structure is arranged in a second position and is arranged in a first connecting hole in a depth direction. The earphone provided by the application only needs to be arranged in a first connecting hole in a depth direction. The first limiting structure and the second limiting structure are arranged in a first connecting hole in a depth direction. The first end of the connecting piece is extracted from the first connecting hole. The sound-producing piece does not need to be disassembled, is more simple and convenient, can avoid earphone damage caused by disassembly of the sound-producing piece, and helps to prolong the service life of the earphone.

Description

Technical Field

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

[0002] In related technologies, headphones typically include a sound-producing part and a connecting part connected together. The sound-producing part's outer shell has a connecting hole, and the connecting part connects to this connecting hole. A common sound-producing part outer shell includes multiple sub-shells, with the connecting hole located at the junction of two adjacent sub-shells, resulting in only partial connecting holes on each sub-shell. The connecting part has a connecting rod, one end of which has a limiting structure. When connecting the connecting part to the sound-producing component, the connecting rod is typically engaged with a portion of the connecting hole on the sub-shell. Simultaneously, the limiting structure is accommodated within the sub-shell's space, and finally, the two sub-shells are connected. This connection method suffers from problems such as complex processes and difficult disassembly. Utility Model Content

[0003] The purpose of this application is to provide an earphone that improves the ease of installation and removal of the earphone.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] This application provides an earphone, which includes a connector and a sound-emitting component. The connector has a first end, and the wall of the first end has a first limiting structure.

[0006] The sound-generating component includes a housing, which has a first connection hole, and a second limiting structure is provided on the inner wall of the first connection hole.

[0007] The first end of the connector extends into the first connecting hole. The first limiting structure has a first position and a second position in the first connecting hole. When the first limiting structure is in the first position, it is offset from the second limiting structure in the circumferential direction of the first connecting hole. When the first limiting structure is in the second position, it is stacked with the second limiting structure in the depth direction of the first connecting hole.

[0008] The first end of the connector can extend into the first connecting hole. Combined with the first limiting structure being stacked with the second limiting structure in the depth direction of the first connecting hole when in the second position, it can be seen that the connection method between the sound-generating component and the connector involves extending the first end of the connector into the first connecting hole and stacking the first and second limiting structures in the depth direction of the first connecting hole (i.e., using the second limiting structure to prevent the first end from sliding out of the first connecting hole). Therefore, when disassembling the sound-generating component and the connector, it is only necessary to misalign the first and second limiting structures in the depth direction of the first connecting hole and then pull the first end of the connector out of the first connecting hole. Compared to the connection methods in related technologies, the headphones provided in this application do not require disassembling the sound-generating component, making it simpler and faster. At the same time, it avoids damage to the headphones caused by disassembling the sound-generating component (sound unit), helping to extend the service life of the headphones.

[0009] In some feasible embodiments, the first end of the connector is rotatably connected to the first connecting hole to allow the first limiting structure to switch between a first position and a second position.

[0010] When in the first position, the first limiting structure and the second limiting structure are offset circumferentially from each other in the first connecting hole, meaning there is no overlap between the first and second limiting structures in the depth direction of the first connecting hole. The first end of the connector is rotatably connected to the first connecting hole, meaning the first end and the first connecting hole can rotate relative to each other. Simultaneously, when in the second position, the first limiting structure and the second limiting structure are overlapped in the depth direction of the first connecting hole. Therefore, when the first end is inserted into the first connecting hole, and the first limiting structure is in the first position, rotating the first end relative to the first connecting hole by a certain angle allows the first and second limiting structures to overlap in the depth direction of the first connecting hole, thereby restricting the movement of the connector along the depth direction of the first connecting hole. Therefore, the connection between the headphone's sound-producing component and the connector provided in this application only requires inserting and rotating the first end of the connector (the disassembly steps are the reverse), which involves fewer steps and is simpler to operate, thus effectively improving efficiency.

[0011] In some possible implementations, the first limiting structure extends circumferentially along the wall of the first end; and / or, the second limiting structure extends circumferentially along the first connecting hole.

[0012] This increases the circumferential contact area of ​​the first and second limiting structures at the first end of the connector, dispersing axial loads and preventing excessive stress concentration in certain areas. Simultaneously, uniform stress distribution reduces the generation of local microcracks and delays structural fatigue. Therefore, this application's circumferential extension of the first limiting structure along the wall surface of the first end effectively improves the service life of the earphone.

[0013] In some possible implementations, the first limiting structure includes a first boss, and the second limiting structure includes a second boss.

[0014] Thus, when the first limiting structure is in the second position, the first limiting structure is further away from the opening of the first connecting hole than the second limiting structure, so as to use the second limiting structure to restrict the first limiting structure from approaching the opening of the first connecting hole, thereby restricting the movement of the connector along the depth direction of the first connecting hole.

[0015] In some feasible embodiments, the first end has a plurality of first bosses, which are spaced apart circumferentially along the connecting portion;

[0016] The connecting hole has a plurality of second protrusions, which are spaced apart circumferentially along the first connecting hole;

[0017] In the first position, the multiple first protrusions are offset from the multiple second protrusions in the circumferential direction of the first connecting hole. In the second position, the multiple first protrusions are stacked with the second protrusions in the depth direction of the first connecting hole, and the second protrusions are closer to the opening of the first connecting hole than the first protrusions.

[0018] Thus, when the first limiting structure is in the first position, if the connector continues to penetrate the first connecting hole, the second protrusion is not located on the moving path of the first protrusion. This allows the first protrusion to penetrate the first connecting hole until it passes the second protrusion, meaning the distance between the first protrusion and the opening of the first connecting hole is greater than the distance between the second protrusion and the opening of the undercoat connecting hole (based on the surfaces of the first and second protrusions closest to the opening of the first connecting hole). When the first limiting structure is in the second position, the second protrusion is closer to the opening of the first connecting hole than the first protrusion. Therefore, rotating the connector (first end) of the first limiting structure in the first position along the circumference of the first connecting hole by a certain angle allows the sound-generating component and the connector to be connected, simplifying the connection process.

[0019] In some feasible ways, the first boss has a first connecting surface, which abuts against the second boss when the connector and the first connecting hole are connected, and the first connecting surfaces of the multiple first bosses are located in the same plane;

[0020] The second boss has a second connecting surface. When the sound-generating component and the connector are connected, the second connecting surface abuts against the first boss. The second connecting surfaces of multiple second bosses are located in the same plane.

[0021] In this way, the pressure applied by the second boss can be evenly distributed to each contact point, avoiding local stress concentration, ensuring that the axial pull-out force is evenly distributed, and preventing the root of a single first boss from deforming or breaking due to overload. Meanwhile, a non-coplanar design of multiple first connecting surfaces can easily lead to incomplete contact of some first bosses, causing the load to concentrate on a few first bosses, potentially leading to loosening of the connection or fatigue failure. Therefore, a coplanar design of multiple first connecting surfaces can eliminate such risks through synchronous contact, improving vibration resistance. Furthermore, when all first connecting surfaces are coplanar, there is no need to adjust the individual height or angle of each first boss during assembly; multiple first bosses can be synchronously engaged directly through rotation, reducing operational steps and improving efficiency.

[0022] In some possible implementations, the housing includes multiple sub-housings, with the first connection hole located on one of the multiple sub-housings.

[0023] The first connection hole connecting the sound-generating element and the connector is located on a single sub-shell, making the connection hole more complete. This means the earphone only has a seam between the connector and the first connection hole, reducing the number of seams and thus improving the earphone's overall refinement. Furthermore, the reduced seams also decrease the possibility of the sound-generating element and connector becoming loose. Therefore, the connection method between the sound-generating element and connector in the earphone provided in this application also offers high connection stability.

[0024] In some feasible implementations, the first end has a plurality of first limiting structures, which are spaced apart along the depth direction of the first connecting hole;

[0025] The first connecting hole has multiple second limiting structures, which are spaced apart along the depth direction of the first connecting hole.

[0026] When the first limiting structure is in the first position, multiple first limiting structures and multiple second limiting structures are staggered in the circumferential direction of the first connecting hole. When the first limiting structure is in the second position, multiple first limiting structures and multiple second limiting structures are stacked in the depth direction of the first connecting hole.

[0027] Thus, the first limiting structures spaced apart along the axial direction of the first end can disperse the axial pull-out force or torsional moment to multiple contact points, significantly reducing the stress peak at the root of a single first limiting structure. Similarly, the second limiting structures spaced apart along the depth direction of the first connecting hole can also disperse the axial pull-out force or torsional moment to multiple contact points, significantly reducing the stress peak at the root of a single first limiting structure. Simultaneously, the second limiting structures spaced apart along the depth direction of the first connecting hole increase the contact span between the connector and the hole wall of the first connecting hole, reducing the cantilever effect and improving connection stability.

[0028] In some possible implementations, the connector includes:

[0029] A connecting portion, wherein a first end is located in the connecting portion, and the connecting portion has a second end;

[0030] The connecting arm has a connecting end that connects to the second end. A rubber ring is provided on the circumferential surface of the connecting end. When the first limiting structure is in the second position, the rubber ring connects to the wall of the first connecting hole.

[0031] This creates a dual connection mechanism, which not only improves the connection strength between the connector and the sound-producing component, but also allows the other component to be used to connect the connector and the sound-producing component in the event of failure of either one, effectively improving the reliability and lifespan of the headphones.

[0032] In some feasible embodiments, a second connecting hole is provided on the end face of the connecting end, the second connecting hole is sleeved on the second end, a third limiting structure is provided on the hole wall of the second connecting hole, and a fourth limiting structure is provided on the circumferential surface of the second end. The third limiting structure and the fourth limiting structure are mechanically interlocked to fix the connecting part and the connecting arm.

[0033] The connecting end and the second end are connected by a sleeve, which has significant advantages over other connection methods (such as bonding) in terms of seismic resistance, construction efficiency, maintenance convenience, and cost control, making it particularly suitable for scenarios that require adaptation to displacement or frequent maintenance. Meanwhile, the mechanical interlocking of the third and fourth limiting structures prevents accidental loosening, effectively improving connection stability and vibration resistance.

[0034] In some feasible implementations, one of the third and fourth limiting structures is a boss and the other is a groove.

[0035] In this way, the groove can guide the boss into the correct position, reducing repeated adjustments during assembly. Simultaneously, after the boss is embedded in the groove, the load is distributed through the groove's sidewalls, reducing local stress peaks and improving the connection stability of the connecting arm and the connector. Furthermore, the groove's sidewalls can restrict the boss's lateral displacement. The groove can also be embedded inside the connector, saving space. Additionally, the groove's depth-direction sidewalls restrict the boss's axial movement, eliminating the need for additional limiting structures, simplifying the headphone's structure, and thus reducing production costs.

[0036] In some feasible embodiments, the inner wall of the second connecting hole is also provided with a third boss, and the circumferential surface of the second end is also provided with a first groove. The third boss is connected end to end in the circumferential direction of the second connecting hole, and the first groove is connected end to end in the circumferential direction of the second end. The third boss is closer to the opening of the second connecting hole than the third limiting structure, and the fourth limiting structure is closer to the end face of the second end than the first groove. The third boss and the first groove are mechanically interlocked.

[0037] When the first limiting structure is in the second position, the second limiting structure is located between the first limiting structure and the third boss in the depth direction of the first connecting hole.

[0038] Thus, the first limiting structure and the third protrusion can restrict the movement of the connector along the depth direction of the first connecting hole, effectively preventing the first end from slipping out of the first connecting hole and preventing the first end from going too deep into the first connecting hole, which helps to improve the connection stability of the connector and the sound-producing component. Furthermore, the third protrusion and the first groove, together with the third and fourth limiting structures, form a dual connection mechanism, which on the one hand improves the connection strength between the connecting arm and the connecting part. On the other hand, if either fails, the other can be used to maintain the connection between the connecting arm and the connecting part, effectively improving the reliability and service life of the headphones. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in some embodiments of this application will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this application.

[0040] Figure 1 This is a side view of an earphone;

[0041] Figure 2 This is a three-dimensional structural diagram of an earphone provided in an embodiment of this application;

[0042] Figure 3 yes Figure 2 A cross-sectional view of the provided headphones;

[0043] Figure 4 yes Figure 2 A schematic diagram showing the misalignment of the first limiting structure and the second limiting structure;

[0044] Figure 5 yes Figure 2 A three-dimensional schematic diagram of part of the provided headphone structure;

[0045] Figure 6 yes Figure 5 A cross-sectional view of part of the headphone structure;

[0046] Figure 7 yes Figure 2 A schematic diagram of the outer shell structure;

[0047] Figure 8 yes Figure 2 Another structural diagram of the outer shell;

[0048] Figure 9 yes Figure 2 Provides a side view of the headphone connector;

[0049] Figure 10 yes Figure 2 A cross-sectional view of the connector for the provided headphones;

[0050] Figure 11 yes Figure 9 A partial sectional view of the connector in the diagram.

[0051] Explanation of reference numerals in the attached figures:

[0052] 100, Connector; 110, Connecting part; 111, First end; 112, Second end; 120, Connecting arm; 121, Connecting end; 121a, Second connecting hole; 122, Rubber ring; 200, Sound-generating element; 210, Outer shell; 211, Sub-shell; 211a, First connecting hole; 211b, First sub-shell; 211c, Second sub-shell; 220, Limiting element; 10, First limiting structure; 20, Second limiting structure; 30, Third limiting structure; 40, Fourth limiting structure; 50, Third boss; 60, First groove. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application are within the scope of protection of this application.

[0054] In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. "At least one" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one of a, b, and c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be a single item or multiple items.

[0055] "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, a and / or b can mean: a exists alone, a and b exist simultaneously, or b exists alone. Here, a and b can be singular or plural.

[0056] Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that "first" and "second" are not necessarily different. Meanwhile, in the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is being used as an example, illustration, or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of terms such as "exemplary" or "for example" is intended to present related concepts in a concrete manner for ease of understanding.

[0057] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, may be used. The term "connected" should be interpreted broadly; for example, "connected" can mean directly linked or indirectly linked through an intermediate medium. For instance, the term "connected" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. Similarly, the term "coupled" may be used in describing some embodiments to indicate, for example, that two or more components have direct physical or electrical contact. However, the term "coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other.

[0058] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0059] In this application embodiment, "upper," "lower," "left," and "right" are not limited to the orientation of the components schematically placed in the accompanying drawings. It should be understood that these directional terms can be relative concepts used for description and clarification, and can vary accordingly depending on the orientation of the components in the accompanying drawings. In the drawings, for clarity, the thickness of layers and regions is exaggerated, and the dimensional proportions between the parts in the illustrations do not reflect actual dimensional proportions. Therefore, variations in shape relative to the drawings are conceivable due to, for example, manufacturing techniques and / or tolerances. Therefore, exemplary embodiments should not be construed as being limited to the shapes of the areas shown in this application, but rather include shape deviations caused, for example, by manufacturing. For example, an etched area shown as rectangular would typically have a curved feature. Therefore, the areas shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0060] It should be noted that, in this application, the terms "exemplary" or "for example" are used to indicate that something is being described as an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0061] Furthermore, the architecture and scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of architecture and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0062] Please see Figure 1 , Figure 1 This is a side view of an earphone, such as... Figure 1 As shown, headphones in related technologies typically include a sound-generating element 200 and a connector 100, which are connected together. There are various ways to connect the sound-generating element 200 and the connector 100. Currently, a common method is to design the outer shell of the sound-generating element 200 as a split type, meaning the outer shell of the sound-generating element 200 is composed of multiple sub-shells, with connection holes opened at the connection points of at least two sub-shells. The outer shell of the sound-generating element 200 consists of two sub-shells, and the connection holes are circular, evenly distributed across the two sub-shells. The diameter of the connection hole is approximately the same as the size of the first end of the connector 100. The connection hole and the first end of the connector 100 are in an interference fit (or a clearance fit or a transition fit), and the first end of the connector 100 is connected to a limiting structure. The radial dimension of this limiting structure is larger than the dimension of the first end. During assembly, the connecting holes on the two sub-shells are sequentially engaged with the first end of the connector 100, and the limiting structure is positioned within the accommodating space inside the sub-shell. The two sub-shells are then connected. Because the radial dimension of the limiting structure is larger than the dimension of the first end, the limiting structure cannot disengage from the connecting holes, thus connecting the connector 100 to the sound-generating element 200. However, this design results in multiple seams in the headphones (seams exist between the two sub-shells and between the two sub-shells and the connector 100), affecting the headphones' overall refinement. Furthermore, the multiple seams lead to poor overall connection integrity, and any loosening of any seam will affect the connection stability between the sound-generating element 200 and the connector 100. Therefore, this connection method also results in poor connection stability between the sound-generating element 200 and the connector 100.

[0063] In view of the above-mentioned technical problems, this application provides an earphone that aims to at least partially solve the above-mentioned technical problems.

[0064] This application provides an earphone; please refer to [link / reference]. Figures 2 to 6 , Figure 2 This is a three-dimensional structural diagram of an earphone provided in an embodiment of this application. Figure 3 yes Figure 2 The provided cross-sectional view of the headphones, Figure 4 yes Figure 2 A schematic diagram showing the misalignment of the first and second limiting structures is provided. Figure 5 yes Figure 2 A three-dimensional schematic diagram of part of the provided headphone structure. Figure 6 yes Figure 5 A cross-sectional view of part of the headphone structure, such as Figures 2 to 6 As shown, the headphones include a connector 100 and a sound-emitting component 200. The connector 100 has a first end 111, and the wall of the first end 111 has a first limiting structure 10. The sound-emitting component 200 includes a housing 210, which has a first connecting hole 211a. The inner wall of the first connecting hole 211a is provided with a second limiting structure 20. The first end 111 of the connector 100 extends into the first connecting hole 211a. The first limiting structure 10 has a first position and a second position in the first connecting hole 211a. In the first position, the first limiting structure 10 and the second limiting structure 20 are offset in the circumferential direction of the first connecting hole 211a. In the second position, the first limiting structure 10 and the second limiting structure 20 are stacked in the depth direction of the first connecting hole 211a.

[0065] It should be noted that, in this embodiment of the application, the depth direction of the first connecting hole 211a is defined as the X direction.

[0066] In this embodiment, the first end 111 of the connector 100 can extend into the first connecting hole 211a. Combined with the first limiting structure 10 being stacked with the second limiting structure 20 in the depth direction of the first connecting hole 211a when in the second position, it can be seen that the connection method between the sound-generating component 200 and the connector 100 is to extend the first end 111 of the connector 100 into the first connecting hole 211a, and to stack the first limiting structure 10 and the second limiting structure 20 in the depth direction of the first connecting hole 211a (i.e., using the second limiting structure 20 to restrict the first end 111 from sliding out of the first connecting hole 211a). Therefore, when disassembling the sound-generating component 200 and the connector 100, it is only necessary to misalign the first limiting structure 10 and the second limiting structure 20 in the depth direction of the first connecting hole 211a, and then pull the first end 111 of the connector 100 out of the first connecting hole 211a. Compared to the connection methods in related technologies, the headphones provided in this application do not require disassembling the sound-generating component 200, making them simpler and faster. At the same time, they can also avoid damage to the headphones caused by disassembling the sound-generating component 200 (sound-generating unit), which helps to extend the service life of the headphones.

[0067] In some embodiments, the shape of the cross-section of the first connecting hole 211a may include a circle, a square, an ellipse, etc.

[0068] It is understood that the cross-sectional shape of the first connecting hole 211a can also be irregular. The shape of the cross-sectional shape of the first connecting hole 211a can be selected according to the usage scenario of the headphones, etc., and this application does not impose any restrictions on it.

[0069] In some embodiments, the other end of the connector 100 is connected to the battery compartment, and the connection method between the connector 100 and the battery compartment is the same as the connection method between the connector 100 and the sound-emitting element 200.

[0070] Headphones can be classified in various ways, such as wired headphones and Bluetooth headphones. Bluetooth headphones include clip-on headphones. Clip-on headphones typically house the power supply and sound-generating mechanism in separate compartments, thus requiring a connector 100 to connect the battery compartment to the sound-generating component 200. In this embodiment, the connection method between the battery compartment and the connector 100 is the same as the connection method between the connector 100 and the sound-generating component 200.

[0071] It is understood that the connection method between connector 100 and battery compartment can be different from the connection method between connector 100 and sound-generating element 200. The connection method between connector 100 and battery compartment can be selected according to actual needs, and this application does not impose any restrictions on it.

[0072] In some embodiments, the first end 111 of the connector 100 is rotatably connected to the first connecting hole 211a so that the first limiting structure 10 can switch between a first position and a second position.

[0073] As mentioned above, the first limiting structure 10 and the second limiting structure 20 are offset in the circumferential direction of the first connecting hole 211a when in the first position, meaning that the first limiting structure 10 and the second limiting structure 20 do not overlap in the depth direction of the first connecting hole 211a. The first end 111 of the connector 100 is rotatably connected to the first connecting hole 211a, meaning that the first end 111 and the first connecting hole 211a can rotate relative to each other. Simultaneously, the first limiting structure 10 and the second limiting structure 20 are overlapped in the depth direction of the first connecting hole 211a when in the second position. Therefore, when the first end 111 is inserted into the first connecting hole 211a, and the first limiting structure 10 is in the first position, rotating the first end 111 relative to the first connecting hole 211a by a certain angle allows the first limiting structure 10 and the second limiting structure 20 to overlap in the depth direction of the first connecting hole 211a, thereby restricting the movement of the connector 100 along the depth direction of the first connecting hole 211a. Therefore, the connection between the sound-producing element 200 and the connector 100 of the headphones provided in this application only requires inserting and rotating the first end 111 of the connector 100 (the disassembly steps are the reverse), which involves fewer steps and is simple to operate, thus effectively improving efficiency.

[0074] In some embodiments, the rotation angle of the first end 111 relative to the first connection hole 211a includes 90°.

[0075] In some embodiments, the first limiting structure 10 extends circumferentially along the wall of the first end 111.

[0076] This increases the circumferential contact area of ​​the first limiting structure 10 and the second limiting structure 20 at the first end 111 of the connector 100, thereby dispersing axial loads and preventing excessive stress concentration in certain areas. Simultaneously, uniform stress distribution reduces the generation of local microcracks and delays structural fatigue. Therefore, the axial extension of the first limiting structure 10 along the wall surface of the first end 111 effectively extends the service life of the earphone.

[0077] Please see Figure 3 In some embodiments, the sound-generating element 200 includes a limiting element 220, and a second limiting structure 20 is disposed on the limiting element 220.

[0078] In some embodiments, the second limiting structure 20 extends circumferentially along the first connecting hole 211a. The technical effects are similar to or the same as those of the embodiments described above where the first limiting structure 10 extends circumferentially along the wall of the first end 111, and will not be repeated here.

[0079] It is understood that the first limiting structure 10 and the second limiting structure 20 extend circumferentially along the wall of the first end 111 and the first connecting hole 211a, respectively. This can further extend the service life of the headphones provided in this application.

[0080] In some embodiments, the first limiting structure 10 includes a first boss, and the second limiting structure 20 includes a second boss.

[0081] As described above, the first end 111 of the connector 100 extends into the first connecting hole 211a, and the first limiting structure 10 and the second limiting structure 20 are stacked in the depth direction of the first connecting hole 211a. Therefore, when both the first limiting structure 10 and the second limiting structure 20 are bosses, when the first limiting structure 10 is in the second position, the first limiting structure 10 is further away from the opening of the first connecting hole 211a than the second limiting structure 20. Thus, the second limiting structure 20 can restrict the first limiting structure 10 from approaching the opening of the first connecting hole 211a, preventing the connector 100 from slipping out of the first connecting hole 211a, which helps to improve the connection stability between the connector 100 and the sound-generating component 200.

[0082] In some embodiments, one of the first limiting structure 10 and the second limiting structure 20 is a boss and the other is a groove.

[0083] This design allows the groove to guide the boss into the correct position, reducing repeated adjustments during assembly. Simultaneously, after the boss is embedded in the groove, the load is distributed through the groove's sidewalls, reducing localized stress peaks and improving the connection stability between the connector 100 and the sound-generating element 200. Furthermore, the groove can be embedded inside the connector 100, saving space. In addition, the sidewalls of the groove in the depth direction of the first end 111 or the first connecting hole 211a can restrict the boss's movement, eliminating the need for additional limiting structures. This simplifies the headphone's structure and helps reduce production costs.

[0084] In some embodiments, the first end 111 has a plurality of first protrusions, which are spaced apart circumferentially along the connecting portion 110. The connecting hole has a plurality of second protrusions, which are spaced apart circumferentially along the first connecting hole 211a. In the first position, the plurality of first protrusions are offset from the plurality of second protrusions in the circumferential direction of the first connecting hole 211a. In the second position, the plurality of first protrusions are stacked with the second protrusions in the depth direction of the first connecting hole 211a, and the second protrusions are closer to the opening of the first connecting hole 211a than the first protrusions.

[0085] In this embodiment, multiple first protrusions and multiple second protrusions are staggered in the depth direction of the first connecting hole 211a. This ensures that when the first limiting structure 10 is in the first position, if the connector 100 continues to penetrate deeper into the first connecting hole 211a, the second protrusions are not located on the movement path of the first protrusions. This allows the first protrusions to penetrate deeper into the first connecting hole 211a until they pass over the second protrusions. Specifically, the distance between the first protrusion and the opening of the first connecting hole 211a is greater than the distance between the second protrusion and the opening of the first connecting hole 211a (based on the surfaces of the first and second protrusions closest to the opening of the first connecting hole 211a). When the first limiting structure 10 is in the second position, the second protrusions are closer to the opening of the first connecting hole 211a than the first protrusions. Therefore, it can be seen that by rotating the connector 100 (first end 111) of the first limiting structure 10 in the first position along the circumferential direction of the first connecting hole 211a by a certain angle, the sound-generating element 200 and the connector 100 can be connected, which helps to simplify the connection steps of the sound-generating element 200 and the connector 100.

[0086] In some embodiments, the first boss has a first connecting surface (not shown in the figure). When the connector 100 and the first connecting hole 211a are connected, the first connecting surface abuts against the second boss, and the first connecting surfaces of the plurality of first bosses are located in the same plane. The second boss has a second connecting surface (not shown in the figure). When the sound-generating member 200 and the connector 100 are connected, the second connecting surface abuts against the first boss, and the second connecting surfaces of the plurality of second bosses are located in the same plane.

[0087] In this embodiment, when the first connecting surfaces of all the first bosses are coplanar, the pressure applied by the second boss can be evenly distributed to each contact point, avoiding local stress concentration, ensuring that the axial pull-out force is evenly distributed, and preventing the root of a single first boss from deforming or breaking due to overload. Meanwhile, a non-coplanar design of multiple first connecting surfaces can easily lead to some first bosses not making complete contact, causing the load to concentrate on a few first bosses, potentially leading to loosening of the connection or fatigue failure. Therefore, in this embodiment, designing multiple first connecting surfaces to be coplanar can eliminate such risks through synchronous contact, improving vibration resistance. Furthermore, when all the first connecting surfaces are coplanar, there is no need to adjust the individual height or angle of each first boss during assembly; multiple first bosses can be synchronously engaged directly through rotation, reducing operation steps and improving efficiency.

[0088] In some embodiments, the housing 210 includes a plurality of sub-housings, and the first connection hole is formed on one of the plurality of sub-housings.

[0089] In this embodiment, the first connection hole 211a connecting the sound-emitting element 200 and the connector 100 is formed on one of the multiple sub-shells 211, that is, the connection hole is formed on a single sub-shell 211 (see reference). Figure 5 and Figure 6 Compared to related technologies where the connection holes are located at the joints of multiple sub-shells 211, the connection holes of the headphone's sound-producing element 200 provided in this application are more complete (located on a single sub-shell 211), resulting in the headphone having only a seam between the connector 100 and the first connection hole 211a. This reduction in seams improves the headphone's overall refinement. Furthermore, the reduced seams decrease the likelihood of the sound-producing element 200 and the connector 100 becoming loose. Therefore, the connection method between the sound-producing element 200 and the connector 100 in the headphone provided in this application also offers high connection stability.

[0090] Furthermore, as mentioned above, the first end 111 of the headphone connector 100 provided in this application can extend into the first connection hole 211a. This allows for different assembly methods: multiple sub-shells 211 can be assembled first, and then the first end 111 can be inserted into the first connection hole 211a; alternatively, the first end 111 can be inserted into the first connection hole 211a first, and then the remaining sub-shells 211 can be connected to the sub-shells 211 with the first connection hole 211a. In other words, the headphone provided in this application offers multiple assembly methods, which can be selected according to actual production conditions, thus improving production efficiency. Simultaneously, the fact that the first end 111 of the connector 100 can extend into the first connection hole 211a eliminates the need to disassemble multiple sub-shells 211 during disassembly, preventing damage to the sound-generating component 200 and extending the headphone's lifespan.

[0091] Please see Figure 7 , Figure 7 yes Figure 2 A schematic diagram of the outer casing 210 is shown below. Figure 7 As shown, in some embodiments, the housing 210 of the sound-generating component 200 includes a first sub-housing 211b and a second sub-housing 211c connected together. The ratio of the first sub-housing 211b to the housing 210 is equal to the ratio of the second sub-housing 211c to the housing 210. The first connecting hole 211a is formed in the first sub-housing 211b or the second sub-housing 211c.

[0092] Please see Figure 8 , Figure 8 yes Figure 2 Another structural schematic diagram of the outer casing 210 is shown below. Figure 8 As shown, in some other examples, the housing 210 of the sound-generating component 200 includes a first sub-housing 211b and a second sub-housing 211c connected together, the ratio of the first sub-housing 211b to the housing 210 is greater than the ratio of the second sub-housing 211c to the housing 210, and a first connection hole 211a is formed in the first sub-housing 211b.

[0093] It is understandable that the proportions of the first sub-shell 211b and the second sub-shell 211c in the outer shell 210 can be selected according to the structure of the sound-emitting element 200, etc. For example, the sound-emitting element 200 has a sound-emitting structure, and the sound-emitting structure and the first connecting hole 211a are respectively disposed in the first sub-shell 211b and the second sub-shell 211c. For in-ear headphones, since the sound-emitting structure needs to be inserted into the user's ear canal, its structure is usually small. In this case, the proportions of the first sub-shell 211b and the second sub-shell 211c in the outer shell 210 can be different. This application does not limit the proportions of the first sub-shell 211b and the second sub-shell 211c in the outer shell 210.

[0094] In some embodiments, the first end 111 has a plurality of first limiting structures 10, which are spaced apart along the depth direction of the first connecting hole 211a. The first connecting hole 211a has a plurality of second limiting structures 20, which are spaced apart along the depth direction of the first connecting hole 211a. When the first limiting structure 10 is in a first position, the plurality of first limiting structures 10 and the plurality of second limiting structures 20 are offset in the circumferential direction of the first connecting hole 211a. When the first limiting structure 10 is in a second position, the plurality of first limiting structures 10 and the second limiting structures 20 are stacked in the depth direction of the first connecting hole 211a.

[0095] In this embodiment, the first limiting structures 10, spaced apart along the axial direction of the first end 111, can disperse the axial pulling force or torsional torque to multiple contact points, significantly reducing the stress peak at the root of a single first limiting structure 10. The second limiting structure 20 works similarly and will not be described in detail here. Simultaneously, the second limiting structures 20, spaced apart along the depth direction of the first connecting hole 211a, increase the contact span between the connector 100 and the hole wall of the first connecting hole 211a, reducing the cantilever effect and improving connection stability.

[0096] When the earphone provided in this application has multiple first limiting structures 10, the multiple first limiting structures 10 can be arranged in various ways besides the arrangement in the above embodiments. For example, the multiple first limiting structures 10 are spaced apart and aligned in the depth direction of the first connecting hole 211a. Alternatively, the multiple first limiting structures 10 are spaced apart along the depth direction of the first connecting hole 211a and overlap in the circumferential direction of the first connecting hole 211a. Because the second limiting structures 20 cooperate with the first limiting structures 10 to connect the sound-generating member 200 and the connector 100, the multiple second limiting structures 20 can also be arranged in various ways. For example, they can be spaced apart and aligned along the depth direction of the first connecting hole 211a, while when the first limiting structure 10 is in the first position, the multiple first limiting structures 10 and the multiple second limiting structures 20 are misaligned in the circumferential direction of the first connecting hole 211a. Alternatively, the multiple second limiting structures 20 are spaced apart along the depth direction of the first connecting hole 211a, but overlap in the circumferential direction of the first connecting hole 211a. In general, the arrangement of multiple second limiting structures 20 is sufficient to satisfy that at least one first limiting structure 10 can be stacked with the second limiting structure 20 in the depth direction of the first connecting hole 211a. This application will not enumerate them here.

[0097] Please see Figure 9 and Figure 10 , Figure 9 yes Figure 2 Provides a side view of the headphone connector. Figure 10 yes Figure 2 A cross-sectional view of the provided headphone connector, as shown below. Figure 9 and Figure 10 As shown, in some embodiments, the connector 100 includes a connecting portion 110 and a connecting arm 120. A first end 111 is located in the connecting portion 110, and the connecting portion 110 has a second end 112. The connecting arm 120 has a connecting end 121 connected to the second end 112. A rubber ring 122 is provided on the circumferential surface of the connecting end 121. When the first limiting structure 10 is in the second position, the rubber ring 122 is connected to the wall of the first connecting hole 211a.

[0098] In this embodiment, in addition to using the first limiting structure 10 and the second limiting structure 20 to connect the connector 100 and the sound-generating element 200, a rubber ring 122 is also provided and connected to the wall of the first connecting hole 211a to form a dual connection mechanism. This not only improves the connection strength between the connector 100 and the sound-generating element 200, but also allows the other to be used to connect the connector 100 and the sound-generating element 200 in the event of failure of either one. This effectively improves the reliability of the headphones and extends their service life.

[0099] In some embodiments, the rubber ring 122 extends circumferentially along the connecting end 121. The technical effects are similar to or the same as those of the embodiment where the first limiting structure 10 extends circumferentially along the wall of the first end 111, and will not be described again here.

[0100] In some embodiments, the rubber rings 122 are connected end to end.

[0101] In this embodiment, the end-to-end rubber rings 122 can form an uninterrupted annular structure in the circumference of the connecting end 121. The continuous annular structure can provide a larger contact area, thereby improving the resistance to axial pull-out force and torsional moment. Moreover, the continuous annular structure can make the load evenly distributed in the circumference, reduce the risk of local deformation, and help improve the connection stability between the sound-generating element 200 and the connecting element 100.

[0102] In some embodiments, the rubber ring 122 protrudes from the circumferential surface of the connecting end 121, and the minimum dimension of the rubber ring 122 in the first direction is greater than the maximum dimension of the first connecting hole 211a in the first direction, wherein the first direction is perpendicular to the depth direction of the first connecting hole 211a.

[0103] In this embodiment, the minimum dimension of the rubber ring 122 in the first direction is greater than the maximum dimension of the first connecting hole 211a in the first direction, so that the gap between the connecting end 121 and the hole wall of the first connecting hole 211a is completely eliminated, which can effectively prevent liquid, gas or dust from penetrating and improve the reliability of the headphones.

[0104] In some embodiments, the rubber ring 122 is a sealing ring. This effectively prevents liquids, gases, or dust from penetrating, improving the reliability of the headphones.

[0105] In some examples, the rubber ring 122 is integrally formed with the connecting arm 120.

[0106] In some embodiments, the first limiting structure 10 is disposed at the end of the first end 111 that is away from the connecting arm 120.

[0107] Thus, the connector 100 needs to be inserted deeper so that the first limiting structure 10 can pass the second limiting structure 20 on the inner wall of the first connecting hole 211a. This enhances the connector 100's resistance to axial pull-out force, preventing accidental dislodgement under external force, thereby maximizing the locking depth and improving pull-out strength. Simultaneously, when removing the first end 111 of the connector 100, it needs to be rotated in the opposite direction before being pulled out axially. When the first limiting structure 10 is located at the end of the first end 111 away from the connecting arm 120, the extraction stroke is longer, requiring greater friction to overcome. Vibration or impact usually makes it difficult to simultaneously satisfy the conditions of reverse rotation and long-distance extraction. Therefore, placing the first limiting structure 10 at the end of the first end 111 away from the connecting arm 120 helps enhance the ability to prevent accidental unlocking.

[0108] In some embodiments, the second limiting structure 20 is disposed at the end of the first connecting hole 211a away from its opening.

[0109] When the connector 100 is inserted into the first connecting hole 211a and rotated at a certain angle, the first limiting structure 10 and the second limiting structure 20 overlap in the depth direction of the first connecting hole 211a, forming an axial mechanical interlock. At this time, the second limiting structure 20, located at the end of the first connecting hole 211a away from its opening, is closer to the bottom of the first connecting hole 211a, and its stress point is closer to the rigid support area of ​​the connecting structure, which can more effectively disperse external tension. At the same time, if the second limiting structure 20 is close to the opening of the first connecting hole 211a, the connector 100 may rotate before being fully inserted, resulting in a "false lock". Therefore, setting the second limiting structure 20 at the end of the first connecting hole 211a away from its opening forces the connector 100 to be inserted to the bottom before it can be rotated and locked, reducing the risk of operational errors.

[0110] In some embodiments, the first limiting structure 10 is disposed at the end of the first end 111 away from the connecting arm 120, and the second limiting structure 20 is disposed at the end of the first connecting hole 211a away from its opening.

[0111] In this way, the first end 111 of the connector 100 and the first connecting hole 211a can overlap in the depth direction after rotation. This allows the contact surfaces of the first limiting structure 10 and the second limiting structure 20 to be fully embedded deep within the first connecting hole 211a, significantly increasing the lever arm length against axial pull-out and thus greatly improving the ability to resist axial separation after connection. Simultaneously, the deep-embedded design of the first limiting structure 10 brings the contact between the connector 100 and the hole wall of the first connecting hole 211a closer to the bottom of the hole, reducing the cantilever effect and suppressing radial sway. Furthermore, when the first limiting structure 10 is located at the end of the connector 100, it is less affected by bending moment. The second limiting structure 20 is more strongly supported by the hole wall of the first connecting hole 211a at the bottom of the hole. Both the first limiting structure 10 and the second limiting structure 20 are far away from areas of high stress concentration (such as the opening of the first connecting hole 211a or the middle of the connector 100), which can effectively extend the life of the first limiting structure 10 and the second limiting structure 20, thereby extending the service life of the headphones.

[0112] In some embodiments, a second connecting hole 121a is provided on the end face of the connecting end 121. The second connecting hole 121a is sleeved on the second end 112. A third limiting structure 30 is provided on the hole wall of the second connecting hole 121a. A fourth limiting structure 40 is provided on the circumferential surface of the second end 112. The third limiting structure 30 and the fourth limiting structure 40 are mechanically interlocked to fix the connecting part 110 and the connecting arm 120 together.

[0113] In this embodiment, the connecting end 121 and the second end 112 are connected by a sleeve connection. Compared with other connection methods (such as bonding), the sleeve connection has significant advantages in terms of seismic resistance, construction efficiency, maintenance convenience, and cost control, and is especially suitable for scenarios that require adaptation to displacement or frequent maintenance. At the same time, the third limiting structure 30 and the fourth limiting structure 40 are mechanically interlocked to prevent accidental loosening and effectively improve the connection stability and vibration resistance.

[0114] In some embodiments, one of the third limiting structure 30 and the fourth limiting structure 40 is a boss and the other is a groove. The technical effects are similar to or the same as those of the embodiments where one of the first limiting structure 10 and the second limiting structure 20 is a boss and the other is a groove, and will not be described again here.

[0115] Please see Figure 11 , Figure 11 yes Figure 9 A partial sectional view of the connector in the middle, such as Figure 11 As shown, in some embodiments, the inner wall of the second connecting hole 121a is further provided with a third protrusion 50, and the circumferential surface of the second end 112 is further provided with a first groove 60. The third protrusion 50 and the first groove 60 are connected end to end in the circumferential direction of the second connecting hole 121a, and the third protrusion 50 and the first groove 60 are connected end to end in the circumferential direction of the second end 112. The third protrusion 50 is closer to the opening of the second connecting hole 121a than the third limiting structure 30, and the fourth limiting structure 40 is closer to the end face of the second end 112 than the first groove 60. The third protrusion 50 and the first groove 60 are mechanically interlocked. When the first limiting structure 10 is in the second position, the second limiting structure 20 is located between the first limiting structure 10 and the third protrusion 50 in the depth direction of the first connecting hole 211a.

[0116] Thus, the first limiting structure 10 and the third boss 50 can restrict the movement of the connector 100 along the depth direction of the first connecting hole 211a, effectively preventing the connecting end 121 from slipping out of the second connecting hole 121a and preventing the connecting end 121 from going too deep into the second connecting hole 121a, which helps to improve the connection stability of the connecting arm 120 and the connecting part 110. Furthermore, the third boss 50 and the first groove 60, together with the third limiting structure 30 and the fourth limiting structure 40, form a dual connection mechanism, which on the one hand improves the connection strength between the connecting arm 120 and the connecting part 110. On the other hand, if either fails, the other can be used to maintain the connection between the connecting arm 120 and the connecting part 110, effectively improving the reliability of the headphones and extending their service life.

[0117] In some embodiments, in the second direction, the size of the third boss 50 is larger than the size of the third limiting structure 30, and the size of the first groove 60 is larger than the size of the fourth limiting structure 40, wherein the second direction is perpendicular to the depth direction of the second connecting hole 121a.

[0118] This allows the third boss 50 and the first groove 60 to have a larger contact area in the second direction. Since the force on the connecting end 121 and the connecting portion 110 is mainly along the depth direction of the second connecting hole 121a, increasing the contact area of ​​the third boss 50 and the first groove 60 in the second direction in this embodiment can disperse the axial load on the connecting end 121 and the connecting portion 110, avoiding excessive stress concentration in certain areas. The uniformly distributed stress can reduce the generation of local microcracks, delay structural fatigue, and help improve the connection stability of the connecting end 121 and the second end 112, thereby extending the service life of the earphone.

[0119] In some embodiments, the fourth limiting structure 40 is a groove.

[0120] In this embodiment, both the connecting part 110 and the connecting arm 120 are manufactured by injection molding. Specifically, the connecting part 110 is generated during the first injection molding, and two pull grooves (i.e., the fourth limiting structure 40 and the first groove 60) are generated on the connecting part 110. The second injection molding is performed based on the first injection molding. Therefore, during the second injection molding, the material of the second injection molding will flow into the pull groove formed by the first injection molding, thereby forming a mechanical interlocking structure, which can effectively prevent the structure obtained by the second injection molding from peeling off from the structure of the first injection molding.

[0121] In some examples, the connecting part 110 is made of hard plastic, and the connecting arm 120 is made of soft plastic.

[0122] In some embodiments, the connector 100 may further include a shaping element disposed within the connecting arm 120 and connected to the connecting portion 110.

[0123] A molding component is provided inside the connecting arm 120 so that the shape of the connecting arm 120 can be changed according to actual needs.

[0124] In some examples, shape memory alloys are used for molding parts.

[0125] Taking the connector 100 of an earbud-type headphone as an example, the application of shape memory alloy is explained. As mentioned earlier, the two ends of the connector 100 of the earbud-type headphone are usually connected to the sound-generating element 200 and the battery compartment, respectively. Therefore, both ends of the connecting arm 120 are connected to the connecting part 110. During the first injection molding, the two connecting parts 110 are connected using shape memory alloy. This not only ensures the connection strength between the shape memory alloy and the connecting part 110, but also utilizes the properties of shape memory alloy to ensure that the positions of the two connecting parts 110 remain consistent. After the first injection molding is completed, the two connecting parts 110 are connected using materials such as dummy steel wire to form a wiring channel during the second injection molding. The dummy steel wire is parallel to the shape memory alloy, thereby using the shape memory alloy to determine the position of the wiring channel. The second injection molding is performed in two stages. First, half of the connecting arm 120 is injection molded, and then the remaining connecting arm 120 is injection molded. After the second injection molding is completed, the dummy steel wire is removed, resulting in the connector 100 with the wiring channel.

[0126] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An earphone, characterized in that, include: A connector having a first end, wherein the wall surface of the first end has a first limiting structure; A sound-generating component includes a housing, wherein the housing has a first connection hole and a second limiting structure is provided on the inner wall of the first connection hole; The first end of the connector extends into the first connecting hole. The first limiting structure has a first position and a second position in the first connecting hole. When the first limiting structure is in the first position, it is offset from the second limiting structure in the circumferential direction of the first connecting hole. When the first limiting structure is in the second position, it is stacked with the second limiting structure in the depth direction of the first connecting hole.

2. The earphone according to claim 1, characterized in that, The first end of the connector is rotatably connected to the first connecting hole so that the first limiting structure can switch between the first position and the second position.

3. The headphones according to claim 1 or 2, characterized in that, The first limiting structure extends circumferentially along the wall surface of the first end; and / or, the second limiting structure extends circumferentially along the first connecting hole.

4. The headphones according to claim 1 or 2, characterized in that, The first limiting structure includes a first boss, and the second limiting structure includes a second boss.

5. The headphones according to claim 1 or 2, characterized in that, The outer casing includes multiple sub-shells, and the first connection hole is formed on one of the multiple sub-shells.

6. The earphone according to claim 1 or 2, characterized in that, The first end has a plurality of first limiting structures, and the plurality of first limiting structures are spaced apart along the depth direction of the first connecting hole; The first connecting hole has a plurality of second limiting structures, which are spaced apart along the depth direction of the first connecting hole; When the first limiting structure is in the first position, multiple first limiting structures and multiple second limiting structures are staggered in the circumferential direction of the first connecting hole. When the first limiting structure is in the second position, multiple first limiting structures and multiple second limiting structures are stacked in the depth direction of the first connecting hole.

7. The earphone according to claim 4, characterized in that, The connector includes: A connecting portion, wherein the first end is located in the connecting portion, and the connecting portion has a second end; The connecting arm has a connecting end that connects to the second end, and a rubber ring is provided on the circumferential surface of the connecting end, the rubber ring being connected to the wall of the first connecting hole.

8. The earphone according to claim 7, characterized in that, The first end has a plurality of first protrusions, which are spaced apart circumferentially along the connecting portion; The connecting hole has a plurality of second protrusions, which are spaced apart circumferentially along the first connecting hole; When the first protrusions are in the first position, they are offset from the second protrusions in the circumferential direction of the first connecting hole. When the first protrusions are in the second position, they are stacked with the second protrusions in the depth direction of the first connecting hole, and the second protrusions are closer to the opening of the first connecting hole than the first protrusions.

9. The earphone according to claim 8, characterized in that, The first boss has a first connecting surface. When the connector and the first connecting hole are connected, the first connecting surface abuts against the second boss. The first connecting surfaces of multiple first bosses are located in the same plane. The second boss has a second connecting surface. When the sound-generating member and the connecting member are connected, the second connecting surface abuts against the first boss, and the second connecting surfaces of the plurality of second bosses are located in the same plane.

10. The earphone according to claim 7, characterized in that, The end face of the connecting end is provided with a second connecting hole, the second connecting hole is sleeved on the second end, the hole wall of the second connecting hole is provided with a third limiting structure, and the peripheral surface of the second end is provided with a fourth limiting structure. The third limiting structure and the fourth limiting structure are mechanically interlocked to fix the connecting part and the connecting arm.

11. The earphone according to claim 10, characterized in that, Of the third limiting structure and the fourth limiting structure, one is a boss and the other is a groove.

12. The headphones according to claim 10 or 11, characterized in that, The inner wall of the second connecting hole is also provided with a third protrusion, and the circumferential surface of the second end is also provided with a first groove. The third protrusion is connected end to end in the circumferential direction of the second connecting hole, and the first groove is connected end to end in the circumferential direction of the second end. The third protrusion is closer to the opening of the second connecting hole than the third limiting structure, and the fourth limiting structure is closer to the end face of the second end than the first groove. The third protrusion and the first groove are mechanically interlocked. When the first limiting structure is in the second position, the second limiting structure is located between the first limiting structure and the third boss in the depth direction of the first connecting hole.

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