earphone

Abstract

The present application discloses a headset, belonging to the technical field of electronic equipment. The headset includes a headband assembly, a connecting assembly and a speaker assembly; the connecting assembly includes a fixed assembly and a telescopic assembly, the fixed assembly is connected to the headband assembly, the telescopic assembly includes a telescopic part, one end of the telescopic part is telescopically connected to the fixed assembly, and the other end of the telescopic part is connected to the speaker assembly; the headband assembly includes a wire bundle, the wire bundle penetrates into the fixed assembly from a first end of the fixed assembly close to the headband assembly, and penetrates out of the fixed assembly from a second end of the fixed assembly close to the speaker assembly, and the wire bundle is electrically connected to the speaker assembly. In the headset provided by the present application, the wire bundle penetrates into the fixed assembly from a first end of the fixed assembly close to the headband assembly, and penetrates out of the fixed assembly from a second end of the fixed assembly close to the speaker assembly, the wire bundle can be hidden inside the fixed assembly, reducing the influence of the wire bundle on the appearance of the product, which is conducive to improving the appearance expression of the product.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a headset. Background Art

[0002] Headphones are widely used in people's daily lives, and can be used with electronic devices such as mobile phones and computers. Headphones allow users to listen to the sound from electronic devices alone without disturbing others. In open environments such as collaborative offices, business meetings, and sports, using headphones helps users receive the sound from electronic devices. The headphones may include a headband assembly and a speaker assembly. The headband assembly is used to fit the speaker assembly to a suitable area of ​​the user's head so that the speaker assembly can transmit sound to the human ear. The headband assembly may include a wire harness, which is electrically connected to the speaker assembly. In the related art, the routing of the wire harness is relatively messy, which affects the appearance of the product. Utility Model Content

[0003] The present application provides an earphone that can solve the technical problem that the routing of the wiring harness affects the appearance of the product.

[0004] In order to solve the above technical problems, the headphones provided in the present application include a headband assembly, a connecting assembly and a speaker assembly. The headband assembly is wrapped around the periphery of the user's head when worn and provides a clamping force. The connecting assembly is connected between the headband assembly and the speaker assembly. The connecting assembly includes a fixed assembly and a telescopic assembly. The fixed assembly is connected to the headband assembly. The telescopic assembly includes a telescopic part. One end of the telescopic part is telescopically connected to the fixed assembly, and the other end of the telescopic part is connected to the speaker assembly. The headband assembly includes a wire bundle. The wire bundle penetrates into the fixed assembly from a first end of the fixed assembly close to the headband assembly and exits from the fixed assembly from a second end of the fixed assembly close to the speaker assembly. The wire bundle is electrically connected to the speaker assembly.

[0005] In the earphones provided in the present application, the wire bundle enters the fixed component from the first end of the fixed component close to the headband component, and passes out of the fixed component from the second end of the fixed component close to the speaker component. The wire bundle can be hidden inside the fixed component, so that the routing of the wire bundle is more regular, reducing the impact of the wire bundle on the appearance of the product, which is beneficial to improving the appearance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0007] Figure 1is a schematic diagram of the assembly structure of an earphone embodiment provided by the present application;

[0008] Figure 2 is a schematic diagram of the exploded structure of an embodiment of a headband assembly provided by the present application;

[0009] Figure 3 is a schematic cross-sectional structure diagram of an embodiment of a headband assembly provided by the present application along a viewing angle;

[0010] Figure 4 It is a schematic diagram of the exploded structure of an embodiment of a connection assembly provided by the present application;

[0011] Figure 5 is a schematic diagram of the exploded structure of an embodiment of a speaker assembly provided by the present application;

[0012] Figure 6 It is a schematic diagram of the exploded structure of an embodiment of a speaker assembly and a stick microphone assembly provided by the present application;

[0013] Figure 7 is a schematic diagram of a partial cross-sectional structure of an embodiment of a headset provided by the present application along a viewing angle;

[0014] Figure 8 is a schematic diagram of a partial cross-sectional structure of another embodiment of the earphone provided by the present application along a viewing angle;

[0015] Fig. 9 is a schematic cross-sectional structure diagram of an embodiment of a connection assembly provided by the present application along a viewing angle;

[0016] Fig.10 It is a schematic diagram of the wiring structure of the wire harness of an embodiment of the earphone provided by the present application;

[0017] Fig.11 is a structural schematic diagram of an embodiment of a first housing provided by the present application along a viewing angle;

[0018] Fig.12 is a structural schematic diagram of an embodiment of the first housing provided by the present application taken from another viewing angle;

[0019] Fig.13 is a structural schematic diagram of an embodiment of the first housing provided by the present application taken from another viewing angle;

[0020] Fig.14 It is a structural schematic diagram of an embodiment of a damping part provided by the present application;

[0021] Fig.15 It is a structural schematic diagram of an embodiment of a holding portion provided on a damping portion provided in the present application. DETAILED DESCRIPTION

[0022] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0023] In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited. The terms "first", "second", and "third" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", and "third" can expressly or implicitly include at least one of the features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "including" and "having" in the embodiments of the present application and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or components inherent to these processes, methods, products, or devices.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] This application provides a headset. Figure 1 , the earphone 100 may include a headband assembly 10, a connecting assembly 20 and a speaker assembly 30. The connecting assembly 20 is connected between the headband assembly 10 and the speaker assembly 30. The number of the speaker assembly 30 and the connecting assembly 20 may be two. The two speaker assemblies 30 are respectively used to transmit sound to the left ear and the right ear of the user, and each connecting assembly 20 connects a speaker assembly 30 to one end of the headband assembly 10. The two speaker assemblies 30 may be the same or different. For example, the earphone 100 also includes a stick microphone assembly 40, one of the speaker assemblies 30 may be provided with the stick microphone assembly 40, and the other speaker assembly 30 may not be provided with the stick microphone assembly 40.

[0026] The headband assembly 10 is wound around the periphery of the top of the user's head when worn and provides a clamping force. The headband assembly 10 is used to pass over the top of the user's head. The shape of the headband assembly 10 can match the contour of the user's head, making the user more comfortable and stable when wearing the headband assembly 10. The headband assembly 10 is also used to elastically clamp the two sides of the user's head. Figure 1-Figure 3 , the headband assembly 10 may include a clamping member 11, an elastic coating 12, an elastic abutment 13 and a wire harness 14. The clamping member 11 is arranged in a curved shape along its length direction so that the headband assembly 10 is wound around the periphery of the user's head when worn and provides a clamping force. The material of the clamping member 11 may be titanium, steel or carbon fiber, so that the clamping member 11 has good mechanical strength and deformation ability, which is conducive to improving the service life of the clamping member 11. The wire harness 14 is electrically connected to the speaker assembly 30. When two speaker assemblies 30 are provided, the wire harness 14 may be connected between the two speaker assemblies 30, and the wire harness 14 is arranged along the length direction of the clamping member 11. The elastic coating 12 is coated on the periphery of the clamping member 11 and the wire harness 14 in a molding manner to shield the wire harness 14 in the elastic coating 12 to prevent the wire harness 14 from being exposed and affecting the appearance of the product. The material of the elastic coating 12 may be a material with elasticity such as silicone or rubber to improve the wearing comfort. In the wearing state, the elastic abutment portion 13 is arranged on one side of the elastic covering body 12 close to the top of the head, and is used to abut against the top of the head to assist in positioning the headband assembly 10 on the user's head. Optionally, the elastic abutment portion 13 is integrally formed with the elastic covering body 12, which can simplify the processing technology of the headband assembly 10.

[0027] The connection assembly 20 can be used to adjust the distance between the speaker assembly 30 and the headband assembly 10. Figure 1 , Figure 4As shown, the connection component 20 may include a fixed component 21 and a telescopic component 22, and the fixed component 21 is connected to the headband component 10. The telescopic component 22 includes a telescopic member 221, one end of the telescopic member 221 is telescopically connected to the fixed component 21, and the other end of the telescopic member 221 is connected to the speaker component 30. When the telescopic member 221 telescopes relative to the fixed component 21, since the telescopic member 221 is connected to the speaker component 30, the telescopic member 221 can drive the speaker component 30 to telescope relative to the fixed component 21, thereby changing the distance between the speaker component 30 and the fixed component 21; and the fixed component 21 is connected to the headband component 10, and the fixed component 21 is relatively fixed to the headband component 10. When the distance between the speaker component 30 and the fixed component 21 changes, the distance between the speaker component 30 and the headband component 10 changes accordingly, so that when wearing the headset 100, it can be adaptively adjusted according to the different head shapes of the user, and the speaker component 30 is positioned at a suitable position, and the speaker component 30 can fit the user's face more closely or be positioned at the ear, thereby improving the compatibility of the headset 100.

[0028] The speaker assembly 30 is used to transmit sound to human ears. Figure 1 , Figure 5 , Figure 6 , the speaker assembly 30 may include a housing assembly 31, a bone conduction speaker 32 and / or an air conduction speaker 33. Specifically, the speaker assembly 30 may include one of the bone conduction speaker 32 and the air conduction speaker 33, or may be provided with both the bone conduction speaker 32 and the air conduction speaker 33. The housing assembly 31 is used to accommodate the bone conduction speaker 32 and / or the air conduction speaker 33. The housing assembly 31 may include a main housing 311 and a main cover 312, and the main housing 311 and the main cover 312 are enclosed to form an installation space for accommodating the bone conduction speaker 32 and / or the air conduction speaker 33. The speaker converts the electrical signal into mechanical vibration when powered on, so that the user can hear the sound through the headset 100. Among them, the bone conduction speaker 32 is attached to the user's face, and the mechanical vibration generated by the bone conduction speaker 32 can act directly on the user's auditory nerve based on the bone conduction principle and mainly through the user's bones and tissues as a medium; the mechanical vibration generated by the air conduction speaker 33 can act on the user's eardrum based on the air conduction principle and mainly through the air as a medium, and then act on the auditory nerve. For the sound heard by the user, the former can be called "bone conduction sound" and the latter can be called "air conduction sound". The speaker assembly 30 can form bone conduction sound or air conduction sound, or can form bone conduction sound and air conduction sound at the same time. The speaker assembly 30 can also include at least one of a battery 34 and a control circuit board 35. The battery 34 can be used to provide power when the earphone 100 is working, and the control circuit board 35 can be used to control the working state of the earphone 100.

[0029] The stick microphone assembly 40 can be used to collect the user's voice. The stick microphone assembly 40 is rotatably arranged on the speaker assembly 30. Figure 6 As shown, the stick microphone assembly 40 may include a stick body assembly 41, a microphone assembly 42 and a shaft mechanism 43. The microphone assembly 42 and the shaft mechanism 43 may be connected to both ends of the stick body assembly 41, and the shaft mechanism 43 is rotatably connected to the speaker assembly 30. In the wearing state, the shaft mechanism 43 may rotate relative to the speaker assembly 30, so as to position the microphone assembly 42 in the sound pickup area of ​​the user's mouth to meet different voice collection requirements.

[0030] The telescopic component 22 has a telescopic direction relative to the fixed component 21. Figure 4 , Figure 7 The fixing assembly 21 may include a housing assembly 23. The housing assembly 23 is provided with a telescopic cavity 231, one end of the telescopic member 221 is slidably accommodated in the telescopic cavity 231 along the telescopic direction, and the other end of the telescopic member 221 is connected to the speaker assembly 30. For example, the telescopic direction may be Figure 7 When the telescopic member 221 slides in the telescopic direction in the telescopic cavity 231, the telescopic member 221 can drive the speaker assembly 30 to slide relative to the fixed assembly 21, thereby changing the distance between the speaker assembly 30 and the fixed assembly 21, and the distance between the speaker assembly 30 and the headband assembly 10 changes accordingly, so that the earphone 100 can be adaptively adjusted according to the different head shapes of the user when wearing it.

[0031] Optionally, the housing assembly 23 is an integrated structure, for example, the housing assembly 23 is integrally formed by injection molding, and a telescopic cavity 231 is formed inside the housing assembly 23. The integrated housing assembly 23 has good integrity.

[0032] In one embodiment, if Figure 7-Figure 9 As shown, the housing assembly 23 includes a first housing 24 and a second housing 25, and the first housing 24 and the second housing 25 are enclosed to form a telescopic cavity 231. Exemplarily, the first housing 24 is provided with a first telescopic groove 246, and the second housing 25 is provided with a second telescopic groove 253. After the first housing 24 is assembled in place relative to the second housing 25, the first telescopic groove 246 is communicated with the second telescopic groove 253 to enclose and form the telescopic cavity 231. The housing assembly 23 is set to be a split type, and the telescopic cavity 231 is enclosed by the first housing 24 and the second housing 25, so that the telescopic cavity 231 can be enclosed by an open groove, which can reduce the processing difficulty of the housing assembly 23 compared with the integral processing of the housing assembly 23.

[0033] The headband assembly 10 has a plug-in portion 15, and the plug-in portion 15 is used to connect the headband assembly 10 to the fixing assembly 21. For example, the plug-in portion 15 can be connected to the shell assembly 23. The plug-in portion 15 can be a part of the clamping member 11, that is, the plug-in portion 15 is integrally formed with the clamping member 11; the plug-in portion 15 can also be separately processed from the clamping member 11 and then assembled and connected. Optionally, the plug-in portion 15 and the shell assembly 23 are fixed at the connection with screws. For example, the plug-in portion 15 is clamped between the first shell 24 and the second shell 25, and the screws are penetrated through the first shell 24, the plug-in portion 15 and the second shell 25 in a direction perpendicular to the telescopic direction to limit the movement of the three in the telescopic direction. In the above scheme, through holes for passing screws can be opened on the first shell 24 and the plug-in part 15, and connecting holes can be opened on the second shell 25. In order to prevent the screws from being exposed and affecting the appearance of the headset 100, the connecting holes can be blind holes. In order to ensure the connection strength between the screws and the second shell 25, the connecting holes on the second shell 25 need to have a certain depth, but this will cause the size of the second shell 25 at the connection between the headband assembly 10 and the connecting assembly 20 to be larger, such as thicker, which is not conducive to the miniaturization of the product.

[0034] like Figure 7 , Figure 8 As shown, the shell assembly 23 is provided with a plug hole 232, and the plug part 15 is inserted into the plug hole 232 along the telescopic direction. Specifically, the plug hole 232 can be opened in the first shell 24, or in the second shell 25, or the first shell 24 and the second shell 25 can be grooved respectively, and the first shell 24 and the second shell 25 are enclosed to form the plug hole 232. The fixing assembly 21 includes a locking member 211, and the locking member 211 is configured to lock the first shell 24 and the plug part 15 along the telescopic direction, so that the first shell 24 and the plug part 15 are relatively fixed along the telescopic direction. Further, the second shell 25 is provided with a first limiting portion 251 and a second limiting portion 252, the first limiting portion 251 is used to limit the second shell 25 from moving toward the side where the headband assembly 10 is located, and the second limiting portion 252 is used to limit the second shell 25 from moving toward the side where the speaker assembly 30 is located, thereby limiting the movement of the second shell 25 in the telescopic direction. In the above scheme, first, the locking member 211 locks the first shell 24 and the plug-in portion 15 along the telescopic direction, so that the first shell 24 and the plug-in portion 15 are relatively fixed along the telescopic direction; further, the movement of the second shell 25 in the telescopic direction is limited by setting the first limiting portion 251 and the second limiting portion 252, so that the plug-in portion 15, the first shell 24 and the second shell 25 are relatively fixed in the telescopic direction. Compared with fixing the three by screws, there is no need to open a connecting hole on the second shell 25, which can reduce the thickness of the second shell 25 at the connection between the headband assembly 10 and the connecting assembly 20, thereby reducing the size of the second shell 25, which is conducive to the miniaturization of the product.

[0035] Optionally, the locking member 211 is provided in the form of a buckle (not shown in the figure), such as a U-shaped buckle, and the housing assembly 23 has a first vertical direction perpendicular to the telescopic direction of the telescopic member 221. Exemplarily, the first vertical direction is Figure 7 The first housing 24 and the plug-in portion 15 are provided with a slot along the first vertical direction, and after the plug-in portion 15 is assembled in place relative to the first housing 24, the buckle is engaged in the slot, thereby locking the first housing 24 and the plug-in portion 15 in the telescopic direction.

[0036] See also Figure 8 In one embodiment, a first locking hole 2421 is provided on the first shell 24, and a second locking hole 151 is provided on the plug-in portion 15. After the plug-in portion 15 is assembled in place relative to the first shell 24, the first locking hole 2421 and the second locking hole 151 overlap each other, and the locking member 211 is inserted into the first locking hole 2421 and the second locking hole 151. The locking member 211 cooperates with the hole wall of the locking hole. The locking member 211 can limit the relative movement of the first shell 24 and the plug-in portion 15 in the telescopic direction, thereby locking the first shell 24 and the plug-in portion 15 in the telescopic direction. Exemplarily, the locking member 211 is provided in the form of a screw or a pin, and the first locking hole 2421 and the second locking hole 151 are through holes that penetrate the first shell 24 and the plug-in portion 15 respectively along the first vertical direction. The inner wall of the locking hole can also be provided with a thread. When the locking member 211 is provided in the form of a screw, the locking member 211 forms a threaded connection with the first housing 24 and the plug-in portion 15, so that the locking member 211 can also lock the first housing 24 and the plug-in portion 15 in the first vertical direction; or, when the locking member 211 is provided in the form of a pin, the locking member 211 is interference-fitted with the hole wall of the locking hole, thereby locking the first housing 24 and the plug-in portion 15 in the first vertical direction. By providing the locking hole on the first housing 24 and the plug-in portion 15, the locking hole cooperates with the locking member 211 to achieve the limitation of the first housing 24 and the plug-in portion 15 in the telescopic direction, the processing of the locking hole is relatively convenient, and the locking member 211 can be provided in the form of a screw or a pin, which is lower in cost than the locking member 211 provided in the form of a buckle, which is conducive to reducing the cost of the product.

[0037] Optionally, the first limiting portion 251 is disposed at one end of the second housing 25 close to the headband assembly 10. For example, the first limiting portion 251 may be an end wall of the second housing 25 close to one end of the headband assembly 10, and a flange is disposed on the periphery of the plug-in portion 15. After the plug-in portion 15 is assembled in place relative to the second housing 25, the flange abuts against the end wall along the telescopic direction, so that the plug-in portion 15 abuts against the first limiting portion 251 along the telescopic direction, so as to limit the second housing 25 from moving toward the side where the headband assembly 10 is located.

[0038] In one embodiment, if Figure 8As shown, the first limiting portion 251 is arranged in the space enclosed by the first shell 24 and the second shell 25. For example, the first limiting portion 251 can be a boss or protrusion arranged on the second shell 25 and protruding toward the side where the first shell 24 is located. After the plug-in portion 15 is assembled in place relative to the second shell 25, the end of the plug-in portion 15 close to the speaker assembly 30 abuts against the boss or protrusion along the telescopic direction, so that the plug-in portion 15 abuts against the first limiting portion 251 along the telescopic direction to limit the second shell 25 from moving toward the side where the headband assembly 10 is located. Relatively speaking, the above embodiment does not need to set a flange on the periphery of the plug-in portion 15, which can simplify the processing technology of the plug-in portion 15, thereby reducing the production cost; in addition, the first limiting portion 251 is arranged in the space enclosed by the first shell 24 and the second shell 25, which can prevent the first limiting portion 251 from being exposed and affecting the appearance of the product.

[0039] Optionally, the first limiting portion 251 forms a partial cavity wall of the telescopic cavity 231 near one end of the headband assembly 10. When the telescopic member 221 slides in the telescopic cavity 231 toward the side where the headband assembly 10 is located, the end of the telescopic member 221 near the headband assembly 10 can abut against the first limiting portion 251 to limit the telescopic stroke of the telescopic member 221 toward the side where the headband assembly 10 is located, so that the telescopic member 221 does not touch the plug-in portion 15 when sliding, thereby preventing the telescopic member 221 from affecting the connection between the plug-in portion 15 and the first shell 24 when sliding, and can improve the reliability of the connection between the plug-in portion 15 and the fixed assembly 21.

[0040] Optionally, the second limiting portion 252 is disposed at one end of the second housing 25 close to the speaker assembly 30. For example, the second limiting portion 252 may be an end wall of the second housing 25 close to the speaker assembly 30, and the end of the first housing 24 close to the speaker assembly 30 is provided with a flange protruding toward the side where the second housing 25 is located. After the second housing 25 is assembled in place relative to the first housing 24, the flange abuts against the end wall along the telescopic direction, so that the first housing 24 abuts against the second limiting portion 252 along the telescopic direction to limit the second housing 25 from moving toward the side where the speaker assembly 30 is located.

[0041] See also Figure 8In one embodiment, the second limiting portion 252 is protrudingly disposed outside the second housing 25 and at least partially overlaps with the plug hole 232 along the telescopic direction. After the second housing 25 is assembled in place relative to the first housing 24, the first housing 24 abuts against the second limiting portion 252 along the telescopic direction to limit the second housing 25 from moving toward the side where the speaker assembly 30 is located. The second limiting portion 252 is arranged to at least partially overlap with the plug hole 232 along the telescopic direction, so that the plug hole 232 can be opened at one end of the second housing 25 close to the headband assembly 10. The second limiting portion 252 is arranged around the outer periphery of the hole wall of the plug hole 232. The second limiting portion 252 forms a reinforcement for the opening of the plug hole 232 of the second housing 25, which can enhance the strength of the second housing 25 at the opening of the plug hole 232, so that the plug hole 232 is not prone to failure, thereby improving the reliability of the connection between the plug portion 15 and the fixing assembly 21.

[0042] In one embodiment, if Figure 8 As shown, a reinforcing protrusion 244 is provided on the first shell 24, and the reinforcing protrusion 244 protrudes toward the side where the second shell 25 is located, and the first locking hole 2421 is opened on the reinforcing protrusion 244. In this arrangement, firstly, the reinforcing protrusion 244 reinforces the opening of the first locking hole 2421 of the first shell 24, which can enhance the strength of the first shell 24 at the opening of the first locking hole 2421, so that the first locking hole 2421 is not prone to failure, thereby improving the reliability of the connection between the plug-in portion 15 and the fixing assembly 21; further, the reinforcing protrusion 244 protrudes toward the side where the second shell 25 is located, so that the reinforcing protrusion 244 is located in the space enclosed by the first shell 24 and the second shell 25, thereby hiding the reinforcing protrusion 244 between the first shell 24 and the second shell 25, while reinforcing the opening of the first locking hole 2421 of the first shell 24, the influence of the reinforcing protrusion 244 on the appearance of the shell assembly 23 can be reduced.

[0043] Optionally, the reinforcing protrusion 244 forms a partial cavity wall of the telescopic cavity 231 near one end of the headband assembly 10. When the telescopic member 221 slides in the telescopic cavity 231 toward the side where the headband assembly 10 is located, the end of the telescopic member 221 near the headband assembly 10 can abut against the reinforcing protrusion 244 to limit the telescopic stroke of the telescopic member 221 toward the side where the headband assembly 10 is located, so that the telescopic member 221 does not touch the plug-in part 15 when sliding, thereby preventing the telescopic member 221 from affecting the connection between the plug-in part 15 and the first shell 24 when sliding, and can improve the reliability of the connection between the plug-in part 15 and the fixed assembly 21. While reinforcing the first locking hole 2421 of the first shell 24, the reinforcing protrusion 244 also serves as a telescopic stroke limiter for the telescopic member 221 toward the side where the headband assembly 10 is located. On the one hand, the number of components of the fixed assembly 21 is reduced, which can reduce the cost. On the other hand, compared with providing an additional telescopic stroke limiter for the telescopic member 221 on the side of the reinforcing protrusion 244 close to the speaker assembly 30, the maximum telescopic stroke position of the telescopic member 221 toward the side where the headband assembly 10 is located can be made as close to the headband assembly 10 as possible. Under the same telescopic stroke conditions, the internal space of the fixed assembly 21 is fully utilized, and the length of the fixed assembly 21 in the telescopic direction can be reduced, which is conducive to the miniaturization of the product.

[0044] Optionally, the first shell 24 and the second shell 25 are bonded to limit their relative movement in a direction perpendicular to the telescopic direction, so that the first shell 24 and the second shell 25 are not easily separated in a direction perpendicular to the telescopic direction, preventing the second shell 25 from falling off, thereby ensuring that the shell assembly 23 has good integrity.

[0045] See also Fig. 9In one embodiment, a limiting slide groove 254 extending along the telescopic direction is provided on one of the first shell 24 and the second shell 25, and a first limiting flange 245 is provided on the other of the first shell 24 and the second shell 25. That is, the limiting slide groove 254 can be provided on the second shell 25, and correspondingly, the first limiting flange 245 is provided on the first shell 24; or the limiting slide groove 254 is provided on the first shell 24, and correspondingly, the first limiting flange 245 is provided on the second shell 25. The following description is made by taking the limiting slide groove 254 provided on the second shell 25 as an example. The first limiting flange 245 is accommodated in the limiting slide groove 254, so as to limit the second shell 25 and the first shell 24 from being separated from each other in the vertical direction of the telescopic direction while allowing the first shell 24 and the second shell 25 to slide against each other along the telescopic direction, so as to prevent the second shell 25 from falling off, thereby ensuring that the shell assembly 23 has good integrity. By setting the first limiting flange 245 and the limiting groove 254, the first shell 24 and the second shell 25 slide together with each other along the telescopic direction, which is convenient for the assembly connection of the first shell 24 and the second shell 25, and convenient for the subsequent disassembly and maintenance, and can also limit the relative movement of the second shell 25 and the first shell 24 in the vertical direction of the telescopic direction.

[0046] like Fig. 9 As shown, the first housing 24 has a first vertical direction perpendicular to the telescopic direction of the telescopic member 221, and a second vertical direction perpendicular to the telescopic direction and the first vertical direction. For example, the first vertical direction and the second vertical direction may be respectively Fig. 9 The first shell 24 includes two side walls 241 spaced apart from each other along the first vertical direction and a bottom wall 242 connecting the two side walls 241 along the first vertical direction. The thickness of the two side walls 241 along the second vertical direction is greater than the thickness of the bottom wall 242 along the second vertical direction, so as to form a first telescopic groove 246 between the two side walls 241. The first telescopic groove 246 is formed by setting the two side walls 241 and the bottom wall 242, so that the first telescopic groove 246 is open toward one side of the second shell 25, so as to be connected with the second telescopic groove 253 provided on the second shell 25 to enclose and form a telescopic cavity 231. Since one side of the first telescopic groove 246 is open, it is easier to process than a closed groove, so the processing technology of the first shell 24 can be simplified.

[0047] Optionally, the first limiting flange 245 is connected to the side wall 241 and protrudes toward the side where the first telescopic groove 246 is located. There can be multiple first limiting flanges 245, for example, multiple first limiting flanges 245 are arranged at intervals along the telescopic direction, and the first limiting flanges 245 cooperate with the limiting sliding groove 254 to form a multi-point limit, so that the second shell 25 and the first shell 24 are not easily separated from each other in the vertical direction of the telescopic direction. There can also be one first limiting flange 245. For example, a first limiting flange 245 extends continuously along the telescopic direction. In the telescopic direction, the length of the first limiting flange 245 is approximately equal to the length of the limiting groove 254. When the first shell 24 is assembled in place relative to the second shell 25, the continuously extended first limiting flange 245 cooperates with the limiting groove 254 to form a multi-point limit, so that the second shell 25 and the first shell 24 are not easily separated from each other in the direction perpendicular to the telescopic direction. In addition, the continuously extended first limiting flange 245 can also be sealed at the joint between the first shell 24 and the second shell 25, thereby improving the airtightness of the telescopic cavity 231 and preventing dust from entering the telescopic cavity 231.

[0048] Optionally, the limiting slide groove 254 is provided on the side wall of the second housing 25. In the extension direction, one end of the limiting slide groove 254 is open and the other end is closed. For example, the limiting slide groove 254 is open at one end close to the speaker assembly 30 and closed at one end close to the headband assembly 10, so that the first housing 24 is assembled to the second housing 25 in a sliding manner along the extension direction. Optionally, the second limiting portion 252 is provided at one end of the second housing 25 close to the headband assembly 10. For example, the second limiting portion 252 may be an end wall closed at one end of the limiting slide groove 254 close to the headband assembly 10. After the first housing 24 slides into place relative to the second housing 25, the first limiting flange 245 abuts against the end wall at one end close to the headband assembly 10, so that the first housing 24 abuts against the second limiting portion 252 along the extension direction to limit the second housing 25 from moving toward the side where the speaker assembly 30 is located. The second limiting portion 252 is configured as an end wall enclosed in the limiting sliding groove 254 close to one end of the headband assembly 10 , thereby reducing the number of components on the second housing 25 and facilitating cost reduction.

[0049] In one embodiment, the locking member 211 is configured not to be in direct contact with the second housing 25. Optionally, the second locking hole 151 is a blind hole on the plug-in portion 15 along the first vertical direction, and the second locking hole 151 does not penetrate the side of the plug-in portion 15 close to the second housing 25, so that the locking member 211 does not directly contact the second housing 25, and the opening depth of the second locking hole 151 on the plug-in portion 15 can be reduced, thereby reducing the weakening of the strength of the plug-in portion 15 by the opening, and improving the reliability of the connection between the plug-in portion 15 and the fixing assembly 21. Alternatively, the second locking hole 151 is a through hole on the plug-in portion 15 along the first vertical direction, and the length of the locking member 211 along the first vertical direction is less than the sum of the lengths of the first locking hole 2421 and the second locking hole 151 along the first vertical direction, so that the end of the locking member 211 close to the second shell 25 does not contact the second shell 25, which can prevent the locking member 211 from touching the second shell 25 when assembling the locking member 211, thereby preventing the locking member 211 from causing the second shell 25 and the first shell 24 to move relative to each other in the first vertical direction.

[0050] The elastic covering body 12 can extend along the length direction of the clamping member 11 to the connection between the headband assembly 10 and the fixing assembly 21. For example, the elastic covering body 12 covers the outer periphery of the plug-in portion 15. At the connection between the headband assembly 10 and the fixing assembly 21, there is a joint between the elastic covering body 12 and the shell assembly 23. There is no elastic covering body 12 to share the force, so the plug-in portion 15 is subjected to a large force and is prone to failure. Please refer to Figure 8 In one embodiment, the plug-in portion 15 is connected to one end of the clamping member 11 close to the fixing assembly 21. In a reference section perpendicular to the telescopic direction, the cross-sectional dimension of the plug-in portion 15 is greater than the cross-sectional dimension of the clamping member 11. This can reduce the cross-sectional stress of the plug-in portion 15 at the connection between the headband assembly 10 and the fixing assembly 21, making it less likely for the plug-in portion 15 to fail, thereby improving the reliability of the connection between the plug-in portion 15 and the fixing assembly 21.

[0051] In one embodiment, if Figure 8 As shown, the second locking hole 151 connects the opposite sides of the plug-in part 15, and the connection area formed by the clamping member 11 and the plug-in part 15 is located outside the second locking hole 151, which can reduce the weakening of the connection area between the clamping member 11 and the plug-in part 15 caused by the opening of the second locking hole 151, thereby ensuring the reliability of the connection between the clamping member 11 and the plug-in part 15.

[0052] See also Figure 7In one embodiment, in the wearing state, the first shell 24 is arranged close to the user's head, and the second shell 25 is arranged away from the user's head, so that when the first shell 24 and the second shell 25 enclose and form the telescopic cavity 231, the joint seam between the first shell 24 and the second shell 25 avoids the side of the fixing component 21 that contacts the user's head. For example, the joint seam between the first shell 24 and the second shell 25 can be located on the side of the fixing component 21 close to the top of the head and the side close to the chin, which can improve the wearing comfort of the headset 100. The first shell 24 is provided with a positioning groove 247 on the side facing the user's head, and the fixing component 21 also includes a fitting member 212 detachably arranged in the positioning groove 247, and the fitting member 212 is used to abut the user's head. With such a configuration, on the one hand, the fitting member 212 can cover the outside of the locking member 211, preventing the locking member 211 from being exposed to the fixing assembly 21 and affecting the appearance of the product; on the other hand, when the earphone 100 is worn, in addition to the speaker assembly 30 being fitted to the user's head, the fitting member 212 is also fitted to the user's head, increasing the contact points between the earphone 100 and the user's head, making the earphone 100 more comfortable and stable to wear; in addition, the fitting member 212 is detachable, which can facilitate the replacement of the fitting member 212, or multiple groups of fitting members 212 can be provided, so that the user can select a fitting member 212 that is more comfortable to wear and install it in the positioning groove 247. Optionally, the fitting member 212 includes an elastic material, and under the clamping force of the clamping member 11, the fitting member 212 can produce a certain elastic compression deformation, thereby increasing the contact area between the fitting member 212 and the user's head, further improving the wearing comfort of the earphone 100.

[0053] Optionally, the wire harness 14 extends from the outside of the fixed component 21 to the telescopic component 22 and is fixed to the telescopic component 22 so as to be electrically connected to the speaker component 30. This arrangement can reduce the occupation of the internal space of the fixed component 21 by the wire harness 14, which is conducive to the miniaturization of the fixed component 21.

[0054] Alternatively, if Fig.10 As shown, the wire harness 14 passes through the fixing assembly 21 from the first end of the fixing assembly 21 close to the headband assembly 10, and passes through the fixing assembly 21 from the second end of the fixing assembly 21 close to the speaker assembly 30, and the wire harness 14 is electrically connected to the speaker assembly 30. In this way, the wire harness 14 can be hidden inside the fixing assembly 21, so that the routing of the wire harness 14 is more regular, reducing the impact of the wire harness 14 on the appearance of the product, which is conducive to improving the appearance of the product.

[0055] Optionally, a wiring channel is provided on the fixed component 21 and passes through the fixed component 21 along the telescopic direction of the telescopic member 221. The wire harness 14 is arranged in the wiring channel, so that the wire harness 14 is hidden inside the fixed component 21, reducing the impact of the wire harness 14 on the product appearance. For example, the wire harness 14 passes through the telescopic cavity 231 from the first end of the fixed component 21 close to the headband component 10, and passes through the telescopic cavity 231 from the second end of the fixed component 21 close to the speaker component 30, so that the wire harness 14 is hidden inside the fixed component 21 through the telescopic cavity 231, and the space of the telescopic cavity 231 can be fully used for wiring. Since the telescopic member 221 is slidably accommodated in the telescopic cavity 231, in order to avoid interference between the telescopic member 221 and the wire harness 14 when the telescopic member 221 moves, an isolation member can be provided in the telescopic cavity 231 to isolate the telescopic member 221 from the wire harness 14.

[0056] Optionally, the wire harness 14 is disposed outside the telescopic cavity 231, so as to avoid interference between the telescopic member 221 and the wire harness 14 when the telescopic member 221 moves. Fig. 9 The fixing assembly 21 includes a first shell 24 and a fitting 212, and the first shell 24 encloses at least part of the telescopic cavity 231. That is, on a reference cross section perpendicular to the telescopic direction, the projection of the telescopic cavity 231 can fall entirely into the first shell 24, and at this time, the first shell 24 independently encloses the entire telescopic cavity 231; the projection of the telescopic cavity 231 can also partially fall into the first shell 24, and at this time, the first shell 24 and other components jointly enclose the telescopic cavity 231, for example, the first shell 24 and the second shell 25 jointly enclose the telescopic cavity 231. The part of the wire harness 14 located between the first end and the second end of the fixing assembly 21 is visible from the outside of the first shell 24 and is covered by the fitting 212. With such arrangement, on the one hand, the wire harness 14 can be arranged outside the telescopic cavity 231 to avoid interference between the telescopic member 221 and the wire harness 14 when the telescopic member 221 moves; on the other hand, the fitting 212 covers the portion of the wire harness 14 exposed outside the first shell 24, hiding the wire harness 14 between the first shell 24 and the fitting 212. The spatial routing formed by the first shell 24 and the fitting 212 can be used to reduce the influence of the wire harness 14 on the product appearance.

[0057] Optionally, the portion of the wire harness 14 visible from the outside of the first shell 24 is attached to the surface of the first shell 24 close to the fitting 212 and fixed with tape or glue, so that the wire harness 14 is not easily displaced.

[0058] In one embodiment, if Figure 9-12As shown, a first telescopic groove 246 is formed on one side of the first shell 24, and a wiring groove 2411 is provided on the other side of the first shell 24 away from the first telescopic groove 246. The wire harness 14 is embedded in the wiring groove 2411, and the fitting 212 covers the wiring groove 2411. By providing the wiring groove 2411, on the one hand, the wire harness 14 is embedded in the wiring groove 2411, and the groove wall of the wiring groove 2411 can limit the lateral displacement of the wire harness 14, so that the wire harness 14 is not easily displaced; on the other hand, compared with the surface of the wire harness 14 attached to the first shell 24, the thickness of the first shell 24 itself in the direction perpendicular to the telescopic direction can be fully utilized to accommodate the wire harness 14, thereby reducing the size of the shell assembly 23 in this direction, which is conducive to the miniaturization of the product.

[0059] In the wearing state, the fitting member 212 is arranged on a side of the first shell 24 close to the head, and is used to abut against the side of the head to achieve auxiliary positioning of the headband assembly 10 on the head, which can make the earphone 100 more comfortable and stable to wear. Specifically, in the wearing state of the earphone 100, in addition to the speaker assembly 30 being fitted to the user's head, the fitting member 212 is also fitted to the user's head, increasing the contact points between the earphone 100 and the user's head, thereby making the earphone 100 more comfortable and stable to wear. Optionally, the fitting member 212 includes an elastic material, and under the clamping force of the clamping member 11, the fitting member 212 can produce a certain elastic compression deformation, thereby increasing the contact area between the fitting member 212 and the user's head, and further improving the wearing comfort of the earphone 100.

[0060] See also Figure 9-12 The first shell 24 has a first vertical direction perpendicular to the telescopic direction of the telescopic member 221, and a second vertical direction perpendicular to the telescopic direction and the first vertical direction. The first shell 24 includes two side walls 241 spaced apart from each other along the first vertical direction and a bottom wall 242 connecting the two side walls 241 along the first vertical direction, and the thickness of the two side walls 241 along the second vertical direction is greater than the thickness of the bottom wall 242 along the second vertical direction, so as to form a first telescopic groove 246 between the two side walls 241. Optionally, the wiring groove 2411 is provided on the bottom wall 242. The bottom wall 242 is connected between the two side walls 241, so that the wiring position of the wire bundle 14 is relatively centered, which can reduce the bending of the wire bundle 14, shorten the length of the wire bundle 14, and save material consumption.

[0061] In one embodiment, if Figure 9-12As shown, the projection of the wiring groove 2411 along the second vertical direction at least partially falls within one of the two side walls 241, so that the wiring groove 2411 is at least partially opened on the side wall 241, which can fully utilize the larger thickness of the side wall 241 in the second vertical direction. Compared with the wiring groove 2411 being opened on the bottom wall 242, the thickness of the bottom wall 242 in the second vertical direction can be reduced, which is conducive to the miniaturization of the product.

[0062] See also Fig. 9 In one embodiment, the projections of the wiring groove 2411 and the first telescopic groove 246 along the first vertical direction at least partially overlap. With such a configuration, under the condition that the size of the wiring groove 2411 is constant, the size of the side wall 241 protruding toward the side of the fitting 212 can be reduced, thereby reducing the size of the side wall 241 along the second vertical direction, which is conducive to miniaturization of the product.

[0063] In one embodiment, if Figure 9-12 As shown, a glue reduction groove 2412 is further provided on the other side of the first shell 24 away from the first telescopic groove 246, and the projection of the glue reduction groove 2412 along the second vertical direction at least partially falls within the other of the two side walls 241. When a wiring groove 2411 is provided on one side wall 241, in order to accommodate the wire harness 14, the width of the side wall 241 in the first vertical direction is relatively large. Generally speaking, in order to make the appearance of the first shell 24 more beautiful, the two side walls 241 can be symmetrically arranged about the bottom wall 242, so that the width of the other side wall 241 in the first vertical direction is equivalent to the width of the side wall 241 provided with the wiring groove 2411 in the first vertical direction, that is, the width of the other side wall 241 is also relatively large. By providing the glue reduction groove 2412, the wall thickness of the other side wall 241 can be reduced, so that the wall thickness is more uniform, and the deformation during the injection molding cooling process is reduced.

[0064] In one embodiment, along the expansion and contraction direction, the lengths of the wiring groove 2411 and the glue reduction groove 2412 are not less than 50% of the lengths of the two side walls 241. Fig.13As shown, if the length l1 of the wiring groove 2411 is less than 50% of the length l of the side wall 241, the wire harness 14 visible from the outside of the first shell 24 will have a longer length outside the wiring groove 2411, and the lateral displacement of the wire harness 14 lacks constraints, and the wire harness 14 is easily displaced. Setting the length of the wiring groove 2411 to be no less than 50% of the length of the two side walls 241 can make the wire harness 14 visible from the outside of the first shell 24 as much as possible embedded in the wiring groove 2411, and the lateral displacement of the wire harness 14 is limited by the groove wall of the wiring groove 2411, so that the wire harness 14 is not easily displaced. If the length l2 of the glue reduction groove 2412 is less than 50% of the length l of the two side walls 241, the length of the glue reduction groove 2412 on the first shell 24 is relatively short, which will cause uneven wall thickness in some areas, and deformation is likely to occur during the injection molding cooling process. Optionally, the lengths of the wiring groove 2411 and the glue reducing groove 2412 are 60%, 70%, 80% or 90% of the lengths of the two side walls 241 , etc., which is not specifically limited here.

[0065] Further, the length of the portion of the wiring groove 2411 falling into one of the two side walls 241 is not less than 50% of the length of the wiring groove 2411, and the length of the portion of the glue reduction groove 2412 falling into the other of the two side walls 241 is not less than 50% of the length of the glue reduction groove 2412. In this way, the wiring groove 2411 and the glue reduction groove 2412 are arranged on the side wall 241 as much as possible, wherein the wiring groove 2411 is arranged on the side wall 241, so that the larger thickness of the side wall 241 in the second vertical direction can be fully utilized, and the thickness of the bottom wall 242 in the second vertical direction can be reduced compared with the wiring groove 2411 being arranged on the bottom wall 242, which is conducive to the miniaturization of the product; the glue reduction groove 2412 is arranged on the other side wall 241 without the wiring groove 2411, so that the wall thickness of the other side wall 241 can be reduced, so that the wall thickness is more uniform, and the deformation during the injection molding cooling process is reduced. Optionally, the length of the portion of the wiring groove 2411 and the glue reducing groove 2412 falling into the side wall 241 is 60%, 70%, 80% or 90% of the length of the side wall 241 .

[0066] Optionally, the wiring groove 2411 penetrates the first housing 24 along the extension direction, so that the wire harness 14 can pass through the wiring groove 2411 into the first end of the fixing assembly 21 and pass through the wiring groove 2411 out of the second end of the fixing assembly 21 .

[0067] See also Figure 9-12Optionally, the first shell 24 and / or the second shell 25 are provided with a plug hole 232 for plugging and matching with the headband assembly 10, and the wire harness 14 is inserted into the space enclosed by the first shell 24 and the second shell 25 along the plug hole 232. By using the plug hole 232 to pass the wire harness 14, the number of openings on the shell assembly 23 can be reduced, thereby reducing the impact of the openings on the appearance of the shell assembly 23. The first shell 24 is also provided with a first wiring hole 2422 close to the first end of the fixing assembly 21 and connected to the wiring groove 2411. The wire harness 14 is further extended to the other side of the first shell 24 away from the first telescopic groove 246 through the first wiring hole 2422. By setting the first wiring hole 2422, the wire harness 14 extends through the first wiring hole 2422 to the other side of the first shell 24 away from the first telescopic slot 246. On the one hand, the wire harness 14 can be located outside the telescopic cavity 231 to avoid interference between the telescopic member 221 and the wire harness 14 when the telescopic member 221 moves; on the other hand, the hole wall of the first wiring hole 2422 can limit the lateral movement of the wire harness 14 and limit the position of the wire harness 14 at the point where the wire harness 14 penetrates the fixing assembly 21, so that the position of the wire harness 14 is relatively fixed and the wire harness 14 is not easily displaced. Exemplarily, the first wiring hole 2422 is opened on the bottom wall 242, and the first wiring hole 2422 passes through two oppositely arranged surfaces of the bottom wall 242 along the second vertical direction. The first wiring hole 2422 can be arranged adjacent to the first locking hole 2421.

[0068] See also Figure 9-12 The first shell 24 includes two end walls 243 that are spaced apart from each other along the telescopic direction and connect the two side walls 241. The end wall 243, the side wall 241 and the bottom wall 242 can enclose a positioning groove 247 for installing the fitting 212. The first shell 24 is also provided with a second wiring hole 2431 that is close to the second end of the fixing component 21 and is connected to the wiring groove 2411. The second wiring hole 2431 passes through the side wall 241 and / or the end wall 243 close to the second end of the fixing component 21, and the wire bundle 14 further extends to the speaker assembly 30 through the second wiring hole 2431. Specifically, the second wiring hole 2431 can pass through the side wall 241, or can pass through the end wall 243, or a part of the second wiring hole 2431 passes through the side wall 241, and another part passes through the end wall 243. Setting the opening position of the second wiring hole 2431 on the side wall 241 and / or the end wall 243 near the second end of the fixing component 21 can make the wire harness 14 pass through the fixing component 21 as close as possible to the side where the speaker component 30 is located, thereby reducing the length of the wire harness 14 exposed from the fixing component 21, which is beneficial to reducing the impact of the wire harness 14 on the product appearance; in addition, the hole wall of the second wiring hole 2431 can limit the lateral movement of the wire harness 14 and limit the wire harness 14 passing through the fixing component 21, so that the position of the wire harness 14 is relatively fixed and the wire harness 14 is not easily displaced.

[0069] Optionally, the opening direction of the second wiring hole 2431 is set at an angle to the extension direction of the wiring groove 2411. Generally speaking, the telescopic member 221 usually penetrates the telescopic cavity 231 from the middle area of ​​the second end of the shell assembly 23, which can make the appearance of the product more beautiful. By setting the opening direction of the second wiring hole 2431 and the extension direction of the wiring groove 2411 at an angle, the position where the wire bundle 14 passes through the fixed assembly 21 can avoid the telescopic member 221. For example, the exit position of the wire bundle 14 can be set on the side of the telescopic member 221. For example, in the wearing state, the second wiring hole 2431 is opened on the side of the user's head away from the face, so that the telescopic member 221 can partially block the wire bundle 14, thereby reducing the impact of the wire bundle 14 on the product appearance after passing through the fixed assembly 21. When the opening direction of the second wiring hole 2431 is set at an angle to the extension direction of the wiring groove 2411, the wire harness 14 is bent at the point where it passes through the fixing component 21, which has a certain impact on the threading process. Further, the first shell 24 is provided with a wire alignment groove 2423, which is connected to the second wiring hole 2431, and the extension direction of the wire alignment groove 2423 is the same as the opening direction of the second wiring hole 2431. For example, Fig.11 As shown, the outgoing wire alignment groove 2423 may be at least partially located on the bottom wall 242. When assembling the wire harness 14, the outgoing wire alignment groove 2423 may guide the wire harness 14 into the second wiring hole 2431, thereby facilitating the assembly alignment of the wire harness 14 and improving assembly efficiency.

[0070] The length of the wire harness 14 outside the second end of the fixing assembly 21 is greater than the maximum extension of the telescopic member 221 , which can prevent the telescopic member 221 from pulling the wire harness 14 during telescopic movement, thereby increasing the service life of the wire harness 14 .

[0071] See also Fig.10 The fixing assembly 21 includes a first stopper 213, and the first stopper 213 is sleeved on the wire harness 14. Exemplarily, the first stopper 213 is a buckle or a snap ring, and its material can be plastic or metal, so that the first stopper 213 is sleeved on the wire harness 14, so that the first stopper 213 and the wire harness 14 are relatively fixed. The first shell 24 is also provided with a wire harness stopper groove 2424 adjacent to the second wire routing hole 2431 at the opening of the wiring groove 2411, and the first stopper 213 is engaged in the wire harness stopper groove 2424. The displacement of the first stopper 213 is limited by setting the wire harness stopper groove 2424. Since the first stopper 213 is sleeved on the wire harness 14, the first stopper 213 and the wire harness 14 are relatively fixed, so the wire harness stopper groove 2424 can limit the displacement of the wire harness 14, so that the wire harness 14 is not easily pulled out of the fixing assembly 21.

[0072] Optionally, after the wire harness 14 passes through the fixing assembly 21 from the second end of the fixing assembly 21 close to the speaker assembly 30, it then passes through the speaker assembly 30 through the end of the speaker assembly 30 connected to the telescopic member 221, so as to be electrically connected to the speaker assembly 30. In this way, the portion of the wire harness 14 between the second end of the fixing assembly 21 close to the speaker assembly 30 and the speaker assembly 30 is exposed to the air, and this portion of the wire harness 14 is not constrained by the telescopic assembly 22. When the telescopic member 221 moves toward the headband assembly 10, the wire harness 14 can have a larger free deformation length, which can increase the length of the bending section of the wire harness 14, and prevent the bending section of the wire harness 14 from being too short to affect the service life.

[0073] In one embodiment, if Fig.10 As shown, the telescopic member 221 is provided with a third wiring hole 2211, and the wire bundle 14 is inserted into the telescopic assembly 22 from the third wiring hole 2211, so that the wire bundle 14 can be hidden in the telescopic assembly 22. On the premise of ensuring that the telescopic member 221 can be freely extended and retracted, the length of the exposed part of the wire bundle 14 is minimized to reduce the impact of the exposed wire bundle 14 on the product appearance. Optionally, the telescopic member 221 is provided with a sheath to fix the wire bundle 14 on the telescopic member 221 and prevent the wire bundle 14 from being exposed to the telescopic assembly 22. Furthermore, the telescopic assembly 22 also includes a second stopper 223, which is sleeved on the wire bundle 14 and interferes with the third wiring hole 2211 on the side of the third wiring hole 2211 close to the speaker assembly 30. The second stopper 223 may be a buckle or a snap ring, and its material may be plastic or metal, so that the second stopper 223 is sleeved on the wire harness 14, so that the second stopper 223 and the wire harness 14 are relatively fixed. Optionally, the second stopper 223 is arranged in the same form as the first stopper 213 to reduce the types of materials. By arranging the second stopper 223 to cooperate with the third wiring hole 2211, the displacement of the wire harness 14 can be limited, so that the wire harness 14 is not easily pulled out of the telescopic assembly 22.

[0074] In order to prevent the telescopic member 221 from pulling the wire bundle 14 when it is telescopically moving, the length of the wire bundle 14 outside the second end of the fixed component 21 is greater than the maximum extension of the telescopic member 221. When the telescopic member 221 moves toward the headband assembly 10, this part of the wire bundle 14 is bent, and the conductive medium (such as metal wire) inside the wire bundle 14 is bent accordingly. By adjusting the distance between the speaker assembly 30 and the headband assembly 10 by the telescopic member 221, the wire bundle 14 outside the second end of the fixed component 21 will bend repeatedly, which may cause fatigue damage to the conductive medium, such as breaking of the metal wire, thereby affecting the reliability of the electrical connection between the wire bundle 14 and the speaker assembly 30.

[0075] See also Fig.10In one embodiment, the wire harness 14 includes a plurality of wires 141 and an insulating sheath 142, and the plurality of wires 141 extend from the headband assembly 10 to the speaker assembly 30. The wires 141 may include a conductive medium, and the insulating sheath 142 may be made of an elastic material such as silicone or rubber. The insulating sheath 142 is coated on the plurality of wires 141 in the wire harness limiting groove 2424 and on the side of the wire harness limiting groove 2424 facing the speaker assembly 30. The insulating sheath 142 is coated on the plurality of wires 141, and when the telescopic member 221 telescopes, the insulating sheath 142 is bent synchronously with the plurality of wires 141. Since the insulating sheath 142 has a certain thickness and is located outside the plurality of wires 141, the bending section of the wire 141 may not be too short, thereby reducing the probability of fatigue failure of the wire 141 and increasing the service life of the wire 141. The multiple wires 141 on the side of the wire harness limiting groove 2424 facing the headband assembly 10 are not covered with the insulating sheath 142, which can reduce the cross-sectional area of ​​the wire harness 14, thereby reducing the occupation of the internal space of the fixing assembly 21 by the wire harness 14, which is conducive to the miniaturization of the product. Optionally, the multiple wires 141 on the side of the wire harness limiting groove 2424 facing the headband assembly 10 are covered with a film, and the thickness of the film is significantly smaller than the insulating sheath 142, for example, the thickness of the film is less than 10% of the thickness of the insulating sheath 142, and the film gathers the multiple wires 141 together to form a wire harness 14, so as to facilitate the assembly of the wires 141.

[0076] In one embodiment, if Figure 7As shown, the telescopic assembly 22 includes a telescopic member 221 and at least two damping parts 222. One end of the telescopic member 221 is slidably accommodated in the telescopic cavity 231, and the other end of the telescopic member 221 is connected to the speaker assembly 30. At least two damping parts 222 are arranged on the telescopic member 221 at intervals along the circumference of the telescopic member 221, and each damping part 222 elastically abuts against the cavity wall of the telescopic cavity 231 in different directions. The damping part 222 may include an elastic material, such as silicone or rubber, and each damping part 222 may be interference-fitted with the cavity wall of the telescopic cavity 231. The damping part 222 generates elastic deformation, so that the telescopic member 221 has a certain resistance when sliding in the telescopic cavity 231, which is convenient for the user to perceive the relative sliding between the telescopic member 221 and the fixed assembly 21, and can improve the feel when adjusting the distance between the speaker assembly 30 and the headband assembly 10 through the telescopic member 221. At least two damping parts 222 are arranged on the telescopic part 221 at intervals along the circumference of the telescopic part 221, and each damping part 222 elastically abuts against the cavity wall of the telescopic cavity 231 in different directions, so that there are at least two abutment points between the outer periphery of the telescopic part 221 and the cavity wall of the telescopic cavity 231, and the cavity wall forms at least two supporting forces on the telescopic part 221, and the directions of the at least two supporting forces are different. The cavity wall forms multi-point support for the telescopic part 221, so that the telescopic part 221 is subjected to more uniform force when sliding in the telescopic cavity 231, which can reduce the possibility of jamming during the telescopic stroke, and the distance adjustment between the speaker assembly 30 and the headband assembly 10 is smoother.

[0077] Optionally, the number of damping parts 222 is 2, 3 or 4, which is not specifically limited here. The more the number of damping parts 222 is, the more supporting force the cavity wall forms on the telescopic member 221, and the directions of the supporting force are different. The cavity wall forms multi-point support on the telescopic member 221, which can make the support pads more evenly distributed on the periphery of the telescopic member 221, and the telescopic member 221 is subjected to more uniform force when sliding in the telescopic cavity 231.

[0078] Alternatively, if Figure 8 As shown, the number of damping parts 222 is 2, and the damping parts 222 include a first damping part 222a and a second damping part 222b. The number of damping parts 222 is 2, which can make the force of the telescopic member 221 more uniform when sliding in the telescopic cavity 231, and reduce the processing difficulty of the telescopic assembly 22. The first damping part 222a and the second damping part 222b are respectively protrudingly arranged on the opposite sides of the telescopic member 221, and the extension direction of the first damping part 222a is opposite to the extension direction of the second damping part 222b, so that the support of the telescopic member 221 formed by the first damping part 222a and the second damping part 222b is respectively located on both sides of the telescopic member 221, and the force of the telescopic member 221 when sliding in the telescopic cavity 231 is symmetrical, thereby reducing the possibility of jamming during the telescopic stroke.

[0079] Optionally, the housing assembly 23 is an integrated structure, for example, the housing assembly 23 is integrally formed by injection molding, and a telescopic cavity 231 is formed therein. The housing assembly 23 of the integrated structure has good integrity, and the cavity wall of the telescopic cavity 231 can be relatively smooth, which is convenient for abutting and matching with the damping part 222, and the extension direction of the damping part 222 is less restricted.

[0080] In one embodiment, if Figure 7 , Figure 8 As shown, the shell assembly 23 includes a first shell 24 and a second shell 25, and the first shell 24 and the second shell 25 are enclosed to form a telescopic cavity 231. The shell assembly 23 is set to be split, and the telescopic cavity 231 is enclosed by the first shell 24 and the second shell 25, so that the telescopic cavity 231 can be enclosed by an open groove, which can reduce the processing difficulty of the shell assembly 23 compared with the integral processing of the shell assembly 23. One of the first shell 24 and the second shell 25 is arranged close to the user's head in the wearing state, and the other of the first shell 24 and the second shell 25 is arranged away from the user's head, so that when the first shell 24 and the second shell 25 are enclosed to form the telescopic cavity 231, the splicing seam between the first shell 24 and the second shell 25 avoids the side of the fixed assembly 21 that contacts the user's head. For example, the splicing seam between the first shell 24 and the second shell 25 can be located on the side of the fixed assembly 21 close to the top of the head and the side close to the chin, which can improve the wearing comfort of the earphone 100.

[0081] Further, the first damping portion 222a and the second damping portion 222b elastically abut against the first shell 24 and the second shell 25, respectively. Specifically, the first damping portion 222a can abut against one of the first shell 24 and the second shell 25, and the second damping portion 222b can abut against the other of the first shell 24 and the second shell 25. The joint seam between the first shell 24 and the second shell 25 can be located on the side of the fixing component 21 close to the top of the head and the side close to the chin, which can improve the wearing comfort of the earphone 100. The first damping portion 222a and the second damping portion 222b are arranged to elastically abut against the first shell 24 and the second shell 25, respectively, so that when the damping portion 222 abuts against the cavity wall of the telescopic cavity 231, the joint seam between the first shell 24 and the second shell 25 can be avoided, so as to prevent the unevenness of the joint seam from causing uneven force on the telescopic member 221 when sliding in the telescopic cavity 231.

[0082] Optionally, the damping portion 222 is integrally formed with the telescopic member 221. For example, at least two protrusions are arranged at intervals along the circumference of the telescopic member 221, and the protrusions are coated with elastic material, such as silicone or rubber, to form the damping portion 222; or, the protrusions are coated with glue or plated to form the damping portion 222. The damping portion 222 is integrally formed with the telescopic member 221, so that the telescopic assembly 22 has better integrity.

[0083] Optionally, the damping part 222 and the telescopic part 221 are processed separately and then assembled and connected. The damping part 222 and the telescopic part 221 are set to be split, so that the two can be processed and formed separately using different materials. For example, the damping part 222 uses an elastic material with relatively low hardness, such as silicone or rubber, so that the damping part 222 has a certain elasticity, which can improve the feel when adjusting the distance between the speaker assembly 30 and the headband assembly 10 through the telescopic part 221; accordingly, the telescopic part 221 can use a material with relatively high hardness, such as plastic or metal, so that the telescopic part 221 has a higher strength, which can increase the service life of the telescopic part 221.

[0084] Optionally, the damping portion 222 is connected to the telescopic member 221 by bonding. Alternatively, at least one mounting hole 2212 is provided on the telescopic member 221, and the first damping portion 222a and the second damping portion 222b are inserted into the at least one mounting hole 2212 by interference fit. Figure 8 Specifically, the number of mounting holes 2212 may be two, one mounting hole 2212 is respectively provided on opposite sides of the telescopic member 221, and one damping part 222 is installed in each mounting hole 2212, wherein the mounting hole 2212 may be a through hole or a blind hole; or, the number of mounting holes 2212 is one, the mounting hole 2212 passes through opposite sides of the telescopic member 221, and the first damping part 222a and the second damping part 222b are respectively inserted in two oppositely arranged openings of the mounting hole 2212 in an interference fit manner, so that the first damping part 222a and the second damping part 222b are respectively protruded and arranged on opposite sides of the telescopic member 221. A mounting hole 2212 is opened on the telescopic member 221 to mount the damping part 222. The damping part 222 can be installed by simply being inserted into the mounting hole 2212. On the one hand, the mounting hole 2212 can be used to position the damping part 222 when assembling it, so as to facilitate the installation and alignment of the damping part 222. On the other hand, after the damping part 222 is assembled into the mounting hole 2212, the hole wall of the mounting hole 2212 can also fix the damping part 222. The damping part 222 can be connected to the telescopic member 221 without gluing, so that the assembly is more convenient and quick.

[0085] In one embodiment, if Figure 8 , Fig.14As shown, there is one mounting hole 2212, which is connected to opposite sides of the telescopic member 221, and the first damping portion 222a and the second damping portion 222b are connected to each other to form an integral part, which is inserted into the mounting hole 2212 in an interference fit manner. The first damping portion 222a and the second damping portion 222b are arranged to form an integral part, so that the first damping portion 222a and the second damping portion 222b can be integrally processed and formed, which can facilitate the processing of the two, simplify the processing technology of the damping portion 222, and enhance the integrity of the damping portion 222.

[0086] Optionally, in a reference cross section perpendicular to the axial direction of the mounting hole 2212, the cross-sectional dimension of the first damping part 222a is greater than the cross-sectional dimension of the second damping part 222b. Accordingly, the cross-sectional dimension of the end of the mounting hole 2212 where the first damping part 222a is inserted is greater than the cross-sectional dimension of the end where the second damping part 222b is inserted. When installing the damping part 222, on the one hand, the installation direction of the damping part 222 can be quickly identified by the difference in cross-sectional dimensions, thereby improving assembly efficiency; on the other hand, the second damping part 222b with a relatively small cross-sectional dimension can be first placed into the mounting hole 2212 to insert one end of the first damping part 222a. The wall of the mounting hole 2212 has little resistance to the second damping part 222b, which can facilitate the installation of the damping part 222, thereby further improving assembly efficiency.

[0087] Alternatively, if Fig.15 As shown, the telescopic assembly 22 also includes a holding portion 224 connected to the second damping portion 222b, and in a reference plane perpendicular to the axial direction of the mounting hole 2212, the cross-sectional dimension of the holding portion 224 is smaller than the cross-sectional dimension of the mounting hole 2212. The holding portion 224 is used to assist in the installation of the integral part. For example, the holding portion 224 can be integrally formed with the second damping portion 222b, and its shape can be in the form of a long strip, such as a strip, so that the holding portion 224 can be held to drag the integral part into the mounting hole 2212, and the holding portion 224 can be removed after the integral part is installed in place relative to the mounting hole 2212; or, the holding portion 224 is provided with an opening or a groove, and a drawstring or a draw hook can be passed through (or set), and the integral part is dragged into the mounting hole 2212 by holding the drawstring or the draw hook, and the drawstring or the draw hook is removed after the integral part is installed in place relative to the mounting hole 2212, and the holding portion 224 can be retained in the second damping portion 222b. By providing the holding portion 224 to assist in installing the integrated component, the assembly efficiency can be improved.

[0088] See also Figure 8 , Fig.14 , Fig.15In one embodiment, a limiting groove 2221 is provided on the integrated part along the circumference of the mounting hole 2212, and a second limiting flange 226 is provided on the inner wall of the mounting hole 2212 along the circumference of the mounting hole 2212. The second limiting flange 226 is embedded in the limiting groove 2221 to limit the integrated part along the axial direction of the mounting hole 2212, so that the integrated part is not easy to fall off from the mounting hole 2212, and the connection between the integrated part and the telescopic part 221 is more reliable.

[0089] The cross section of the part of the telescopic member 221 accommodated in the telescopic cavity 231 perpendicular to the telescopic direction may be circular, elliptical or polygonal. Optionally, the part of the telescopic member 221 accommodated in the telescopic cavity 231 has a thickness direction and a width direction, the dimension in the width direction is greater than the dimension in the thickness direction, and the cross section perpendicular to the telescopic direction may be rectangular, and the mounting hole 2212 connects the opposite sides of the telescopic member 221 along the thickness direction. The mounting hole 2212 is arranged along the thickness direction of the telescopic member 221, and the dimension in the width direction is greater than the dimension in the thickness direction, so that the opening area of ​​the mounting hole 2212 can be relatively large, thereby accommodating the damping part 222 of relatively large size, and the contact area between the damping part 222 and the cavity wall of the telescopic cavity 231 can be increased, and the force of the telescopic member 221 when sliding in the telescopic cavity 231 is more uniform, which can reduce the possibility of jamming during the telescopic stroke.

[0090] Alternatively, if Figure 8 As shown, a limiting protrusion 225 is provided at one end of the telescopic member 221 away from the speaker assembly 30. The limiting protrusion 225 is used to limit the telescopic member 221 from sliding out of the telescopic cavity 231, and the mounting hole 2212 is provided on the limiting protrusion 225. With such a configuration, on the one hand, the limiting protrusion 225 cooperates with the cavity wall of the telescopic cavity 231 to limit the maximum telescopic stroke of the telescopic member 221 when it slides toward one end of the speaker assembly 30, thereby preventing the telescopic member 221 from sliding out of the telescopic cavity 231; on the other hand, the mounting hole 2212 is provided on the limiting protrusion 225, thereby reinforcing the location where the mounting hole 2212 is provided, thereby reducing the weakening of the telescopic member 221 caused by the installation of the mounting hole 2212, thereby preventing the telescopic member 221 from sliding out of the mounting hole 2212. Failure occurs at the opening; in addition, the limiting protrusion 225 partially protrudes from the telescopic member 221, and the mounting hole 2212 is opened on the limiting protrusion 225. When the integrated member is inserted into the mounting hole 2212, the limiting protrusion 225 is arranged around the outer periphery of the damping part 222. The limiting protrusion 225 forms a protective shell for the damping part 222, so that the outer periphery of the damping part 222 will not touch the end wall of the telescopic cavity 231 at the maximum telescopic stroke of the telescopic member 221, thereby improving the service life of the damping part 222.

[0091] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A headset, characterized in that: include: A headband assembly, a connecting assembly and a speaker assembly. The headband assembly is arranged around the periphery of the top of the user's head when worn and provides a clamping force. The connecting assembly is connected between the headband assembly and the speaker assembly. The connecting assembly includes a fixed assembly and a telescopic assembly, wherein the fixed assembly is connected to the headband assembly, and the telescopic assembly includes a telescopic member, one end of the telescopic member is telescopically connected to the fixed assembly, and the other end of the telescopic member is connected to the speaker assembly; The headband assembly includes a wire harness, which passes through the fixing assembly from a first end of the fixing assembly close to the headband assembly and passes through the fixing assembly from a second end of the fixing assembly close to the speaker assembly, and the wire harness is electrically connected to the speaker assembly.

2. The earphone according to claim 1, characterized in that The fixing component is provided with a telescopic cavity, one end of the telescopic member is slidably accommodated in the telescopic cavity, and the wire bundle is arranged outside the telescopic cavity. The fixing component includes a first shell and a fitting, the first shell encloses at least part of the telescopic cavity, and the part of the wire bundle located between the first end and the second end of the fixing component is visible from the outside of the first shell and is covered by the fitting.

3. The earphone according to claim 2, characterized in that A first telescopic slot is formed on one side of the first shell, a wiring slot is provided on the other side of the first shell away from the first telescopic slot, the wire harness is embedded in the wiring slot, and the fitting covers the wiring slot.

4. The earphone according to claim 2 or 3, characterized in that: In the wearing state, the fitting is arranged on a side of the first shell close to the head, and is used to abut against the side of the head to achieve auxiliary positioning of the headband assembly on the head.

5. The earphone according to claim 3, characterized in that: The first shell has a first vertical direction perpendicular to the telescopic direction of the telescopic member, and a second vertical direction perpendicular to the telescopic direction and the first vertical direction. The first shell includes two side walls spaced apart from each other along the first vertical direction and a bottom wall connecting the two side walls along the first vertical direction. The thickness of the two side walls along the second vertical direction is greater than the thickness of the bottom wall along the second vertical direction so as to form the first telescopic groove between the two side walls. The projection of the wiring groove along the second vertical direction at least partially falls within one of the two side walls.

6. The earphone according to claim 5, characterized in that Projections of the wiring groove and the first telescopic groove along the first vertical direction at least partially overlap.

7. The earphone according to claim 5, characterized in that A glue reduction groove is further provided on the other side of the first shell away from the first telescopic groove, and a projection of the glue reduction groove along the second vertical direction at least partially falls within the other of the two side walls.

8. The earphone according to claim 7, characterized in that: Along the telescopic direction, the lengths of the wiring groove and the glue reduction groove are not less than 50% of the lengths of the two side walls; The length of the portion of the wiring groove falling into one of the two side walls is not less than 50% of the length of the wiring groove, and the length of the portion of the glue reduction groove falling into the other of the two side walls is not less than 50% of the length of the glue reduction groove.

9. The earphone according to claim 7, characterized in that: The fixing assembly also includes a second shell that cooperates with the first shell, and the first shell and / or the second shell is provided with a plug hole that cooperates with the headband assembly, and the wire bundle penetrates into the space enclosed by the first shell and the second shell along the plug hole. The first shell is also provided with a first wiring hole that is close to the first end of the fixing assembly and connected to the wiring groove, and the wire bundle further extends to the other side of the first shell away from the first telescopic groove via the first wiring hole.

10. The earphone according to claim 9, characterized in that The first shell includes two end walls spaced apart from each other along the telescopic direction and connecting the two side walls. The first shell is also provided with a second wiring hole close to the second end of the fixing component and connected to the wiring groove. The second wiring hole passes through the side wall and / or the end wall close to the second end of the fixing component. The wire bundle further extends to the speaker assembly via the second wiring hole.

11. The earphone according to claim 10, characterized in that The opening direction of the second wiring hole is set at an angle to the extension direction of the wiring groove. The first shell is provided with a wire alignment groove, which is connected to the second wiring hole. The extension direction of the wire alignment groove is the same as the opening direction of the second wiring hole.

12. The earphone according to claim 11, characterized in that The fixing assembly includes a first limiting member, which is sleeved on the wire harness. The first shell is also provided with a wire harness limiting groove adjacent to the second wire routing hole at the location where the wire routing groove is opened, and the first limiting member is engaged in the wire harness limiting groove.

13. The earphone according to claim 12, characterized in that The telescopic member is provided with a third wiring hole, and the telescopic assembly further comprises a second limiting member, which is sleeved on the wire bundle and interferes with the third wiring hole at a side of the third wiring hole close to the speaker assembly.

14. The earphone according to claim 13, characterized in that The wire harness includes multiple wires and an insulating sheath, multiple wires extend from the headband assembly to the speaker assembly, multiple wires in the wire harness limiting groove and on the side of the wire harness limiting groove facing the speaker assembly are covered with the insulating sheath, and multiple wires on the side of the wire harness limiting groove facing the headband assembly are not covered with the insulating sheath.

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