CN222706603U - Earphone - Google Patents

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

Earphone

Technical Field

The application relates to the technical field of electronic equipment, in particular to an earphone.

Background

The earphone is widely applied to daily life of people, and can be matched with electronic equipment such as mobile phones, computers and the like. The headset allows a user to listen to sound from the electronic device on his or her own without affecting other people, and is useful for receiving sound from the electronic device in open environments such as collaborative offices, business meetings, sports, etc. The headphones may include a headband assembly and a speaker assembly for fitting the speaker assembly to a suitable area of the user's head so that the speaker assembly delivers sound to the human ear. The headband assembly may include a harness that is electrically connected to the speaker assembly. In the related art, the wiring of the wire bundle is messy, and the appearance expressive force of the product is affected.

Disclosure of utility model

The application provides an earphone which can solve the technical problem that the appearance expressive force of a product is influenced by wiring of a wire harness.

In order to solve the technical problems, the earphone comprises a head band assembly, a connecting assembly and a loudspeaker assembly, wherein the head band assembly is wound on the periphery of a head top of a user in a wearing state and provides clamping force, the connecting assembly is connected between the head band assembly and the loudspeaker assembly, the connecting assembly comprises a fixing assembly and a telescopic assembly, the fixing assembly is connected with the head band assembly, the telescopic assembly comprises a telescopic piece, one end of the telescopic piece is connected with the fixing assembly in a telescopic manner, the other end of the telescopic piece is connected with the loudspeaker assembly, the head band assembly comprises a wire bundle, the wire bundle penetrates into the fixing assembly from a first end, close to the head band assembly, of the fixing assembly, and penetrates out of the fixing assembly from a second end, close to the loudspeaker assembly, of the fixing assembly, and the wire bundle is electrically connected with the loudspeaker assembly.

According to the earphone provided by the application, the wire bundle penetrates into the fixing assembly from the first end, close to the headband assembly, of the fixing assembly, and penetrates out of the fixing assembly from the second end, close to the loudspeaker assembly, of the fixing assembly, so that the wire bundle can be hidden in the fixing assembly, the wiring of the wire bundle is regular, the influence of the wire bundle on the appearance of a product is reduced, and the appearance expressive force of the product is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an assembly structure of an embodiment of an earphone according to the present application;

FIG. 2 is a schematic exploded view of one embodiment of a headgear assembly provided by the present application;

FIG. 3 is a schematic cross-sectional view of one embodiment of a headgear assembly according to the present application, taken along a viewing angle;

FIG. 4 is a schematic view of an exploded view of an embodiment of a connection assembly according to the present application;

Fig. 5 is an exploded view of one embodiment of a speaker assembly provided by the present application;

Fig. 6 is a schematic diagram of an exploded view of an embodiment of a speaker assembly and a microphone assembly according to the present application;

FIG. 7 is a schematic view of a partial cross-sectional structure of an earphone according to an embodiment of the present application;

FIG. 8 is a schematic view of a partial cross-sectional structure of another embodiment of an earphone according to the present application;

FIG. 9 is a schematic cross-sectional view of an embodiment of a connecting assembly according to the present application;

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

FIG. 11 is a schematic view of a first embodiment of a first housing according to the present application;

FIG. 12 is a schematic view of a first embodiment of the first housing according to the present application from another perspective;

FIG. 13 is a schematic view of a first embodiment of the first housing according to the present application;

FIG. 14 is a schematic view of an embodiment of a damping portion according to the present application;

Fig. 15 is a schematic structural view of an embodiment of the present application in which a pull-holding portion is disposed on a damping portion.

Detailed Description

The application is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present application, but do not limit the scope of the present application. Likewise, the following examples are only some, but not all, of the examples of the present application, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present application.

In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. The terms "first," "second," "third," and the like in embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. All directional indications (such as up, down, left, right, front, rear) in embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular pose (as shown in the drawings), and if the particular pose changes, the directional indication changes accordingly. The terms "comprising" and "having" and any variations thereof in embodiments of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The application provides an earphone. Referring to fig. 1, an earphone 100 may include a headband assembly 10, a connection assembly 20, and a speaker assembly 30. The connection assembly 20 is connected between the headband assembly 10 and the speaker assembly 30. The number of speaker assemblies 30 and connection assemblies 20 may be two. Two speaker assemblies 30 are used to transmit sound to the left and right ears of a user, respectively, and each of the connection assemblies 20 connects one speaker assembly 30 to one end of the headband assembly 10, respectively. The two speaker assemblies 30 may be the same or different. For example, the earphone 100 further includes a microphone assembly 40, wherein one speaker assembly 30 may be provided with the microphone assembly 40 and the other speaker assembly 30 may not be provided with the microphone assembly 40.

The headgear assembly 10 is wrapped around the periphery of the crown of the user's head in the worn condition and provides a clamping force. The headgear assembly 10 is configured to bypass the top of the user's head, and the headgear assembly 10 may be shaped to match the contours of the user's head, making the headgear assembly 10 more comfortable and stable for the user to wear. The headgear assembly 10 also functions to resiliently clamp both sides of the user's head. Referring to fig. 1-3, the headgear assembly 10 may include a clip 11, a resilient cover 12, a resilient abutment 13, and a harness 14. The clamping member 11 is provided in a curved shape along its length direction so that the headband assembly 10 is wound around the periphery of the top of the head of the user in a worn state and provides a clamping force. The material of the clamping piece 11 can be titanium, steel or carbon fiber, so that the clamping piece 11 has good mechanical strength and deformability, and the service life of the clamping piece 11 is prolonged. The wire harness 14 is electrically connected to the speaker assembly 30. When two speaker assemblies 30 are provided, the wire bundle 14 may be connected between the two speaker assemblies 30, the wire bundle 14 is disposed along the length direction of the clamping member 11, and the elastic coating body 12 is coated on the periphery of the clamping member 11 and the wire bundle 14 in a molding manner, so as to shield the wire bundle 14 in the elastic coating body 12, and prevent the wire bundle 14 from being exposed to affect the appearance of the product. The elastic coating body 12 may be made of elastic materials such as silica gel or rubber, so as to improve wearing comfort. In the worn state, the elastic abutment 13 is disposed on a side of the elastic covering body 12 near the crown for abutment with the crown to assist in positioning the headgear assembly 10 on the head of the user. Alternatively, the elastic abutment 13 is integrally formed with the elastic wrap 12, which may simplify the manufacturing process of the headgear assembly 10.

The connection assembly 20 may be used to adjust the distance between the speaker assembly 30 and the headband assembly 10. As shown in fig. 1 and 4, the connection assembly 20 may include a fixing assembly 21 and a telescopic assembly 22, and the fixing assembly 21 is connected with the headgear assembly 10. The telescopic member 22 includes a telescopic member 221, one end of the telescopic member 221 is telescopically coupled to the fixing member 21, and the other end of the telescopic member 221 is coupled to the speaker assembly 30. When the telescopic member 221 moves telescopically relative to the fixing component 21, the telescopic member 221 is connected with the speaker component 30, so that the telescopic member 221 can drive the speaker component 30 to move telescopically relative to the fixing component 21, thereby changing the distance between the speaker component 30 and the fixing component 21, while the fixing component 21 is connected with the headband component 10, the fixing component 21 is fixed relative to the headband component 10, when the distance between the speaker component 30 and the fixing component 21 is changed, the distance between the speaker component 30 and the headband component 10 is correspondingly changed, so that the speaker component 30 can be adjusted adaptively according to the difference of the head of a user when the earphone 100 is worn, the speaker component 30 is positioned at a proper position, and the speaker component 30 can be more attached to the face or the ear of the user, thereby improving the compatibility of the earphone 100.

Speaker assembly 30 is used to deliver sound to the human ear. Referring to fig. 1, 5, and 6, 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, and the bone conduction speaker 32 and the air conduction speaker 33 may be provided at the same time. The housing assembly 31 is configured to house a bone conduction speaker 32 and/or an air conduction speaker 33. The housing assembly 31 may include a main housing 311 and a main cover 312, the main housing 311 and the main cover 312 enclosing to form an installation space for accommodating the bone conduction speaker 32 and/or the air conduction speaker 33. The speaker converts electrical signals into mechanical vibrations in an energized state to facilitate the user's hearing of sound through the headset 100. The bone conduction speaker 32 is attached to the face of the user, the mechanical vibration generated by the bone conduction speaker 32 can directly act on the auditory nerve of the user based on the bone conduction principle and mainly through the bones and tissues of the user, and the mechanical vibration generated by the air conduction speaker 33 can act on the tympanic membrane of the user based on the air conduction principle and mainly through the air as the medium, thereby acting on the auditory nerve. For the sound heard by the user, the former may be referred to as "bone conduction sound" and the latter may be referred to as "air conduction sound". Speaker assembly 30 may form bone conduction or air conduction, or both. Speaker assembly 30 may also include at least one of a battery 34 and a control circuit board 35. The battery 34 may be used to provide power for operation of the headset 100, and the control circuit board 35 may be used to control the operating state of the headset 100.

The microphone assembly 40 may be used to collect the voice of the user. The microphone assembly 40 is rotatably disposed on the speaker assembly 30. As shown in fig. 6, the microphone assembly 40 may include a stick body assembly 41, a microphone assembly 42, and a spindle mechanism 43, where the microphone assembly 42 and the spindle mechanism 43 may be connected to two ends of the stick body assembly 41, and the spindle mechanism 43 is rotatably connected to the speaker assembly 30. In the worn state, the spindle mechanism 43 may rotate relative to the speaker assembly 30 to position the microphone assembly 42 in the pickup area of the user's mouth to meet different voice acquisition requirements.

The telescopic assembly 22 has a telescopic direction with respect to the fixed assembly 21. Referring to fig. 4 and 7, the fixing assembly 21 may include a housing assembly 23. The housing assembly 23 is provided with a telescopic chamber 231, one end of the telescopic member 221 is slidably accommodated in the telescopic chamber 231 along a telescopic direction, and the other end of the telescopic member 221 is connected with the speaker assembly 30. Illustratively, the telescoping direction may be the direction shown by the Z-axis in FIG. 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 fixing assembly 21, so as to change the distance between the speaker assembly 30 and the fixing assembly 21, and the distance between the speaker assembly 30 and the headband assembly 10 correspondingly changes, so that the earphone 100 can be adaptively adjusted according to the head shape of a user when being worn.

Alternatively, the housing assembly 23 is of an integral structure, for example, the housing assembly 23 is integrally formed by an injection molding process, and the interior thereof is formed with the expansion chamber 231. The housing assembly 23 of one-piece construction has a good integrity.

In one embodiment, as shown in fig. 7-9, the housing assembly 23 includes a first housing 24 and a second housing 25, where the first housing 24 and the second housing 25 enclose a telescopic chamber 231. Illustratively, the first housing 24 is provided with a first expansion slot 246, the second housing 25 is provided with a second expansion slot 253, and after the first housing 24 is assembled in place relative to the second housing 25, the first expansion slot 246 is communicated with the second expansion slot 253 to enclose the expansion cavity 231. The shell assembly 23 is split, the telescopic cavity 231 is formed by enclosing the first shell 24 and the second shell 25, so that the telescopic cavity 231 can be formed by enclosing an open groove, and the processing difficulty of the shell assembly 23 can be reduced relative to the integral processing forming of the shell assembly 23.

The headgear assembly 10 has a plug portion 15, the plug portion 15 being used to connect the headgear assembly 10 to the mounting assembly 21, for example, the plug portion 15 may be connected to the housing assembly 23. The plug-in part 15 may be a part of the clamping member 11, that is, the plug-in part 15 is integrally formed on the clamping member 11, or the plug-in part 15 may be separately processed with the clamping member 11 and then assembled and connected. Optionally, the connection between the plug 15 and the housing assembly 23 is fixed by screws. For example, the plugging portion 15 is clamped between the first housing 24 and the second housing 25, and the screw is inserted through the first housing 24, the plugging portion 15 and the second housing 25 in a direction perpendicular to the extending and contracting direction, so as to limit the movement of the three in the extending and contracting direction. In the above-mentioned scheme, the through hole for inserting the screw can be formed on the first housing 24 and the plug portion 15, the connection hole can be formed on the second housing 25, so as to prevent the screw from being exposed and affecting the appearance of the earphone 100, the connection hole can be a blind hole, so as to ensure the connection strength between the screw and the second housing 25, and the connection hole on the second housing 25 needs to have a certain depth, but the size of the second housing 25 at the connection position of the headband assembly 10 and the connection assembly 20 is larger, such as the thickness is thicker, which is not beneficial to miniaturization of the product.

As shown in fig. 7 and 8, the housing assembly 23 is provided with a plug hole 232, and the plug portion 15 is inserted into the plug hole 232 in the extending and contracting direction. Specifically, the plugging hole 232 may be formed in the first housing 24, or may be formed in the second housing 25, or may be formed by slotting the first housing 24 and the second housing 25, and enclosing the first housing 24 and the second housing 25 together. The fixing assembly 21 includes a locking piece 211, and the locking piece 211 is configured to lock the first housing 24 and the plug portion 15 in the telescopic direction, so that the first housing 24 and the plug portion 15 are relatively fixed in the telescopic direction. Further, the second housing 25 is provided with a first limiting portion 251 and a second limiting portion 252, the first limiting portion 251 is used for limiting movement of the second housing 25 toward the side of the headband assembly 10, and the second limiting portion 252 is used for limiting movement of the second housing 25 toward the side of the speaker assembly 30, so that movement of the second housing 25 in the telescopic direction is limited. In the above-mentioned scheme, the locking piece 211 locks the first housing 24 and the plugging portion 15 along the telescopic direction, so that the first housing 24 and the plugging portion 15 are relatively fixed along the telescopic direction, and further, by providing the first limiting portion 251 and the second limiting portion 252 to limit the movement of the second housing 25 along the telescopic direction, so that the plugging portion 15, the first housing 24 and the second housing 25 are relatively fixed along the telescopic direction, compared with the fixing of the three by adopting a screw manner, the second housing 25 does not need to be provided with a connecting hole, so that the thickness of the second housing 25 at the joint of the headband assembly 10 and the connecting assembly 20 can be reduced, and the size of the second housing 25 is further reduced, which is beneficial to miniaturization of products.

Alternatively, the locking member 211 is provided in the form of a catch (not shown), such as a U-shaped catch, and the housing assembly 23 has a first vertical direction perpendicular to the telescoping direction of the telescoping member 221. Illustratively, the first vertical direction is the X-direction in fig. 7. The first housing 24 and the plug-in portion 15 are provided with a clamping groove along the first vertical direction, and after the plug-in portion 15 is assembled in place relative to the first housing 24, the first housing 24 and the plug-in portion 15 are locked in the clamping groove in a telescopic direction.

Referring to fig. 8, in an embodiment, a first locking hole 2421 is formed in the first housing 24, a second locking hole 151 is formed in the plug portion 15, after the plug portion 15 is assembled in place relative to the first housing 24, the first locking hole 2421 and the second locking hole 151 are overlapped with each other, a locking piece 211 is inserted into the first locking hole 2421 and the second locking hole 151, the locking piece 211 cooperates with the walls of the locking holes, and the locking piece 211 can limit the relative movement of the first housing 24 and the plug portion 15 in the telescopic direction, so as to lock the first housing 24 and the plug portion 15 in the telescopic direction. Illustratively, the locking member 211 is provided in the form of a screw or pin, and the first and second locking holes 2421 and 151 are through holes penetrating the first housing 24 and the socket part 15, respectively, in the first vertical direction. The inner wall of the locking hole may also be provided with threads, so that the locking piece 211 may also lock the first housing 24 and the plug part 15 in the first vertical direction by forming a threaded connection with the first housing 24 and the plug part 15 when the locking piece 211 is provided in the form of a screw, or the locking piece 211 may be interference fitted with the wall of the locking hole when the locking piece 211 is provided in the form of a pin, thereby locking the first housing 24 and the plug part 15 in the first vertical direction. Through seting up the locking hole on first casing 24 and grafting portion 15, the spacing of first casing 24 and grafting portion 15 along flexible direction is realized in locking hole and locking piece 211 cooperation, and the processing of locking hole is comparatively convenient, and the setting form of locking piece 211 can be screw or pin, and the setting form for locking piece 211 is the cost of buckle lower, is favorable to reducing the cost of product.

Alternatively, the first limiting portion 251 is disposed at an end of the second housing 25 adjacent to the headgear assembly 10. For example, the first limiting portion 251 may be an end wall of the second housing 25 near one end of the headband assembly 10, and the outer periphery of the plug-in portion 15 is provided with a flange, and 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 to limit the movement of the second housing 25 toward the side of the headband assembly 10.

In an embodiment, as shown in fig. 8, the first limiting portion 251 is disposed in a space enclosed by the first housing 24 and the second housing 25. For example, the first limiting portion 251 may be a boss or a protrusion disposed on the second housing 25 and protruding toward the side of the first housing 24, where after the plug portion 15 is assembled in place with respect to the second housing 25, an end of the plug portion 15 near the speaker assembly 30 abuts against the boss or the protrusion in the telescopic direction, so that the plug portion 15 abuts against the first limiting portion 251 in the telescopic direction, so as to limit the movement of the second housing 25 toward the side of the headband assembly 10. In contrast, the above embodiment does not need to provide a flange on the outer periphery of the plugging portion 15, so that the processing technology of the plugging portion 15 can be simplified, and the production cost can be reduced, and in addition, the first limiting portion 251 is disposed in the space enclosed by the first housing 24 and the second housing 25, so that the first limiting portion 251 can be prevented from being exposed to affect the appearance of the product.

Optionally, the first limiting portion 251 forms a portion of the cavity wall of the expansion cavity 231 near one end of the headband assembly 10, when the expansion piece 221 slides in the expansion cavity 231 towards the side of the headband assembly 10, the one end of the expansion piece 221 near the headband assembly 10 can abut against the first limiting portion 251 to limit the expansion stroke of the expansion piece 221 towards the side of the headband assembly 10, so that the expansion piece 221 cannot touch the plug-in portion 15 when sliding, the connection between the plug-in portion 15 and the first housing 24 is prevented from being affected when the expansion piece 221 slides, and the reliability of the connection between the plug-in portion 15 and the fixing assembly 21 can be improved.

Optionally, the second limiting portion 252 is disposed at an end of the second housing 25 near the speaker assembly 30. For example, the second limiting portion 252 may be an end wall of the second housing 25 near one end of the speaker assembly 30, the end of the first housing 24 near the speaker assembly 30 is provided with a flange protruding toward the side of the second housing 25, and 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 movement of the second housing 25 toward the side of the speaker assembly 30.

Referring to fig. 8, in an embodiment, the second limiting portion 252 is disposed on the outside of the second housing 25 in a protruding manner, and at least partially overlaps the plugging hole 232 along the extending direction. After the second housing 25 is assembled in place with respect to the first housing 24, the first housing 24 abuts against the second limiting portion 252 in the telescopic direction to limit the movement of the second housing 25 toward the side of the speaker assembly 30. The second limiting portion 252 is arranged to at least partially overlap with the inserting hole 232 along the extending direction, so that the inserting hole 232 can be formed in one end, close to the headband assembly 10, of the second shell 25, the second limiting portion 252 is arranged on the periphery of the wall of the inserting hole 232 in a surrounding mode, reinforcing is formed in the inserting hole 232 forming portion of the second shell 25 by the second limiting portion 252, strength of the inserting hole 232 forming portion of the second shell 25 can be enhanced, failure of the inserting hole 232 is prevented, and accordingly reliability of connection between the inserting portion 15 and the fixing assembly 21 is improved.

In one embodiment, as shown in fig. 8, the first housing 24 is provided with a reinforcing protrusion 244, the reinforcing protrusion 244 protrudes to the side of the second housing 25, and the first locking hole 2421 is formed in the reinforcing protrusion 244. In this way, the reinforcement protrusion 244 firstly reinforces the opening of the first locking hole 2421 of the first housing 24, which can enhance the strength of the first housing 24 at the opening of the first locking hole 2421, so that the first locking hole 2421 is not easy to fail, thereby improving the reliability of the connection between the plug-in portion 15 and the fixing component 21, and further, the reinforcement protrusion 244 protrudes to the side of the second housing 25, so that the reinforcement protrusion 244 is located in the space enclosed by the first housing 24 and the second housing 25, thereby hiding the reinforcement protrusion 244 between the first housing 24 and the second housing 25, and reducing the influence of the reinforcement protrusion 244 on the appearance of the housing component 23 while forming reinforcement on the opening of the first locking hole 2421 of the first housing 24.

Optionally, the reinforcing protrusion 244 forms a part of the cavity wall of the expansion cavity 231 near one end of the headband assembly 10, when the expansion piece 221 slides in the expansion cavity 231 towards the side of the headband assembly 10, one end of the expansion piece 221 near the headband assembly 10 can abut against the reinforcing protrusion 244 to limit the expansion stroke of the expansion piece 221 towards the side of the headband assembly 10, so that the expansion piece 221 cannot touch the plugging portion 15 when sliding, the connection between the plugging portion 15 and the first shell 24 is prevented from being affected when the expansion piece 221 slides, and the reliability of the connection between the plugging portion 15 and the fixing assembly 21 can be improved. The reinforcing protrusion 244 forms reinforcement on the opening of the first locking hole 2421 of the first housing 24, and at the same time, the reinforcing protrusion 244 also serves as a telescopic travel limiter for the telescopic member 221 facing the side of the headband assembly 10, on one hand, the number of components of the fixing assembly 21 is reduced, and the cost can be reduced, and on the other hand, compared with the case that the reinforcing protrusion 244 is provided with an additional telescopic travel limiter for the telescopic member 221 near the side of the speaker assembly 30, the maximum telescopic travel position of the telescopic member 221 facing the side of the headband assembly 10 is as close to the headband assembly 10 as possible, under the same telescopic travel condition, the inner space of the fixing assembly 21 is fully utilized, and the length of the fixing assembly 21 in the telescopic direction can be reduced, thereby being beneficial to miniaturization of products.

Optionally, the first casing 24 and the second casing 25 are limited to move relatively in the vertical direction of the telescopic direction by means of adhesion, so that the first casing 24 and the second casing 25 are not easy to separate in the vertical direction of the telescopic direction, and the second casing 25 is prevented from falling off, thereby ensuring that the casing assembly 23 has good integrity.

Referring to fig. 9, in one embodiment, one of the first housing 24 and the second housing 25 is provided with a limiting chute 254 extending along the extending and retracting direction, and the other of the first housing 24 and the second housing 25 is provided with a first limiting flange 245. I.e. the limit chute 254 may be formed in the second housing 25, and correspondingly, the first limit flange 245 is disposed in the first housing 24, or the limit chute 254 may be formed in the first housing 24, and correspondingly, the first limit flange 245 is disposed in the second housing 25. The limiting chute 254 is provided in the second housing 25. The first limit flanges 245 are accommodated in the limit sliding grooves 254 to restrict the second housing 25 and the first housing 24 from being separated from each other in a vertical direction of the telescopic direction while allowing the first housing 24 and the second housing 25 to slide each other in the telescopic direction, preventing the second housing 25 from falling off, thereby ensuring good integrity of the housing assembly 23. Through setting up first limit flange 245 and spacing spout 254, first casing 24 and second casing 25 are along flexible direction sliding fit each other, both make things convenient for the assembly connection of first casing 24 and second casing 25, make things convenient for the dismantlement maintenance in later stage again, can also restrict the relative movement of second casing 25 and first casing 24 in the vertical direction of flexible direction.

As shown in fig. 9, the first housing 24 has a first vertical direction perpendicular to the telescoping direction of the telescoping member 221, and a second vertical direction perpendicular to the telescoping direction and the first vertical direction. Illustratively, the first and second vertical directions may be an X-axis direction and a Y-axis direction in fig. 9, respectively. The first case 24 includes two side walls 241 disposed spaced apart from each other in the first vertical direction and a bottom wall 242 connecting the two side walls 241 in the first vertical direction, and the thickness of the two side walls 241 in the second vertical direction is greater than the thickness of the bottom wall 242 in the second vertical direction to form a first telescopic groove 246 between the two side walls 241. By providing the two side walls 241 and the bottom wall 242 to form the first expansion groove 246, the first expansion groove 246 is opened towards one side of the second housing 25, so as to be communicated with the second expansion groove 253 formed on the second housing 25 and then enclose to form the expansion cavity 231, and the processing technology of the first housing 24 can be simplified because one side of the first expansion groove 246 is opened and is easier to process relative to the closed groove.

Optionally, a first limiting flange 245 is connected to the side wall 241 and protrudes toward the side of the first expansion groove 246. The first limiting flanges 245 may be a plurality of, for example, the first limiting flanges 245 are arranged at intervals along the telescopic direction, and the first limiting flanges 245 and the limiting sliding grooves 254 cooperate to form a multi-point limiting, so that the second housing 25 and the first housing 24 are not suitable to be separated from each other in the vertical direction of the telescopic direction. The first stop flange 245 may also be one. For example, one first limit flange 245 extends continuously along the extending direction, the length of the first limit flange 245 is approximately equal to the length of the limit chute 254 in the extending direction, when the first housing 24 is assembled in place relative to the second housing 25, the continuously extending first limit flange 245 cooperates with the limit chute 254 to form a multi-point limit, so that the second housing 25 and the first housing 24 are not easily separated from each other in the perpendicular direction of the extending direction, and in addition, the continuously extending first limit flange 245 can also seal at the joint seam between the first housing 24 and the second housing 25, thereby improving the tightness of the extending cavity 231 and preventing dust from entering the extending cavity 231.

Alternatively, the limiting chute 254 is formed on a side wall of the second housing 25, and in the telescopic direction, one end of the limiting chute 254 is opened and the other end is closed, for example, one end of the limiting chute 254 close to the speaker assembly 30 is opened and one end close to the headband assembly 10 is closed, so that the first housing 24 is slidably assembled to the second housing 25 in the telescopic direction. Optionally, a second limiting portion 252 is provided at an end of the second housing 25 adjacent to the headgear assembly 10. For example, the second limiting portion 252 may be an end wall enclosed by the limiting chute 254 near one end of the headband assembly 10, and after the first housing 24 is slid in place relative to the second housing 25, the first limiting flange 245 abuts the end wall near one end of the headband assembly 10, such that the first housing 24 abuts the second limiting portion 252 in the telescopic direction, so as to limit the movement of the second housing 25 toward the side of the speaker assembly 30. The provision of the second limiting portion 252 as an end wall closed to the limiting chute 254 near one end of the headgear assembly 10 reduces the number of components on the second housing 25, which is advantageous for cost reduction.

In one embodiment, the latch 211 is disposed not to directly contact the second housing 25. Optionally, the second locking hole 151 is a blind hole on the plug portion 15 along the first vertical direction, and the second locking hole 151 does not penetrate through a surface of the plug portion 15 near the second housing 25, so that the locking member 211 is not in direct contact with the second housing 25, which can reduce the depth of the opening of the second locking hole 151 on the plug portion 15, thereby reducing the weakening of the strength of the plug portion 15 by the opening, and improving the reliability of the connection between the plug portion 15 and the fixing component 21. Or the second locking hole 151 is a through hole along the first vertical direction on the plugging portion 15, and the length of the locking piece 211 along the first vertical direction is smaller 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 part of the locking piece 211, which is close to one side of the second shell 25, is not contacted with the second shell 25, and the locking piece 211 can be prevented from touching the second shell 25 when the locking piece 211 is assembled, and the locking piece 211 is prevented from causing the second shell 25 and the first shell 24 to relatively move in the first vertical direction.

The elastic coating 12 may extend along the length of the clip 11 to the connection of the headgear assembly 10 to the securing assembly 21. For example, the elastic coating body 12 is coated on the outer periphery of the insertion portion 15. There is a splice between the elastic coating 12 and the shell assembly 23 at the junction of the headband assembly 10 and the fixing assembly 21, where no elastic coating 12 shares the stress, so that the stress of the plugging portion 15 is larger, and failure is easy to occur. Referring to fig. 8, in an embodiment, the plugging portion 15 is connected to an end of the clamping member 11 near the fixing component 21, and in a reference cross section perpendicular to the telescopic direction, the cross section dimension of the plugging portion 15 is larger than that of the clamping member 11, so that the cross section stress of the plugging portion 15 at the connection position of the headband component 10 and the fixing component 21 can be reduced, so that the plugging portion 15 is not easy to fail, and the reliability of the connection between the plugging portion 15 and the fixing component 21 is improved.

In an embodiment, as shown in fig. 8, the second locking holes 151 are communicated with two opposite sides of the plugging portion 15, and the connection area formed by the clamping piece 11 and the plugging portion 15 is located outside the second locking holes 151, so that the weakening of the connection area between the clamping piece 11 and the plugging portion 15 by opening the second locking holes 151 can be reduced, and the reliability of the connection between the clamping piece 11 and the plugging portion 15 is ensured.

Referring to fig. 7, in an embodiment, in a wearing state, the first housing 24 is disposed close to the head of the user, and the second housing 25 is disposed far away from the head of the user, so that when the first housing 24 and the second housing 25 enclose to form the telescopic cavity 231, a splice seam between the first housing 24 and the second housing 25 avoids a surface of the fixing assembly 21 contacting the head of the user, for example, the splice seam between the first housing 24 and the second housing 25 may be located on a side of the fixing assembly 21 close to the top of the head and a side close to the chin, so as to improve wearing comfort of the earphone 100. The first housing 24 is provided with a positioning slot 247 on a side facing the head of the user, and the fixing assembly 21 further includes a fitting member 212 detachably disposed in the positioning slot 247, where the fitting member 212 is used for abutting against the head of the user. In this way, on one hand, the attaching member 212 can cover the outside of the locking member 211 to prevent the locking member 211 from being exposed out of the fixing assembly 21 to affect the appearance of the product, on the other hand, in the wearing state of the earphone 100, besides the speaker assembly 30 is attached to the head of the user, the attaching member 212 is attached to the head of the user, the contact point between the earphone 100 and the head of the user is increased, so that the wearing of the earphone 100 is more comfortable and stable, and in addition, the attaching member 212 can be detached, the replacement of the attaching member 212 can be facilitated, or multiple groups of attaching members 212 can be arranged, so that the user can select the attaching member 212 which is more comfortable to wear to be installed in the positioning groove 247. Optionally, the attaching member 212 includes an elastic material, and under the action of the clamping force of the clamping member 11, the attaching member 212 can generate a certain elastic compression deformation, so as to increase the contact area between the attaching member 212 and the head of the user, and further improve the wearing comfort of the earphone 100.

Alternatively, the harness 14 extends from the outside of the fixing member 21 to the telescopic member 22, and is fixed to the telescopic member 22 so as to be electrically connected with the speaker assembly 30. By this arrangement, the occupation of the wire harness 14 to the internal space of the fixing member 21 can be reduced, which is advantageous for miniaturization of the fixing member 21.

Alternatively, as shown in fig. 10, the harness 14 passes into the mounting assembly 21 from a first end of the mounting assembly 21 adjacent the headband assembly 10 and out of the mounting assembly 21 from a second end of the mounting assembly 21 adjacent the speaker assembly 30, the harness 14 being electrically connected to the speaker assembly 30. By the arrangement, the wire bundle 14 can be hidden inside the fixing assembly 21, so that the wiring of the wire bundle 14 is regular, the influence of the wire bundle 14 on the appearance of a product is reduced, and the appearance expressive force of the product is improved.

Optionally, the fixing component 21 is provided with a routing channel penetrating through the fixing component 21 along the extending direction of the extending component 221, and the wire bundle 14 is penetrated in the routing channel, so that the wire bundle 14 is hidden inside the fixing component 21, and the influence of the wire bundle 14 on the appearance of the product is reduced. For example, the harness 14 passes into the expansion chamber 231 from the first end of the fixing member 21 near the headband assembly 10 and out of the expansion chamber 231 from the second end of the fixing member 21 near the speaker assembly 30, so that the harness 14 is hidden inside the fixing member 21 through the expansion chamber 231, and the space of the expansion chamber 231 can be fully used for running wires. Since the telescopic member 221 is slidably received in the telescopic chamber 231, in order to prevent the telescopic member 221 from interfering with the wire bundle 14 when moving, a spacer may be disposed in the telescopic chamber 231 to isolate the telescopic member 221 from the wire bundle 14.

Alternatively, the wire harness 14 is disposed outside the expansion chamber 231, so that interference with the wire harness 14 when the expansion member 221 moves can be avoided. Referring to fig. 9, the fixing assembly 21 includes a first housing 24 and a fitting member 212, where the first housing 24 encloses at least a portion of the expansion chamber 231. I.e. on a reference section perpendicular to the telescoping direction, the projection of the telescoping cavity 231 may all fall into the first housing 24, where the first housing 24 encloses independently to form all the telescoping cavities 231, or the projection of the telescoping cavity 231 may also partially fall into the first housing 24, where the first housing 24 encloses together with other components to form the telescoping cavity 231, e.g. the first housing 24 encloses together with the second housing 25 to form the telescoping cavity 231. The portion of the harness 14 between the first and second ends of the mounting assembly 21 is visible from the exterior of the first housing 24 and is covered by the abutment 212. In this way, on one hand, the wire bundle 14 can be arranged outside the telescopic cavity 231 to avoid interference with the wire bundle 14 when the telescopic piece 221 moves, and on the other hand, the attaching piece 212 covers the part of the wire bundle 14 exposed out of the first shell 24, the wire bundle 14 is hidden between the first shell 24 and the attaching piece 212, and the influence of the wire bundle 14 on the appearance of a product can be reduced by utilizing the space wiring formed by encircling the first shell 24 and the attaching piece 212.

Alternatively, the portion of the wire harness 14 visible from the outside of the first housing 24 is attached to the surface of the first housing 24 on the side close to the attaching member 212, and is fixed by adhesive or glue, so that the wire harness 14 is not easily displaced.

In an embodiment, as shown in fig. 9-12, a first telescopic slot 246 is formed on one side of the first housing 24, a wire slot 2411 is disposed on the other side of the first housing 24 facing away from the first telescopic slot 246, the wire bundle 14 is embedded in the wire slot 2411, and the bonding member 212 covers the wire slot 2411. By providing the wiring groove 2411, on one hand, the wiring 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 wiring harness 14, so that the wiring harness 14 is not easy to displace, and on the other hand, compared with the surface of the first housing 24, to which the wiring harness 14 is attached, the thickness of the first housing 24 in the direction perpendicular to the extension and retraction direction can be fully utilized to accommodate the wiring harness 14, so that the size of the housing assembly 23 in the direction is reduced, and the miniaturization of products is facilitated.

In the wearing state, the fitting piece 212 is disposed on a side of the first housing 24 near the head, and is used for abutting against a side surface of the head, so as to realize auxiliary positioning of the headband assembly 10 on the head, so that the earphone 100 can be worn more comfortably and stably. Specifically, in the wearing state of the earphone 100, in addition to the speaker assembly 30 being attached to the head of the user, the attaching member 212 is attached to the head of the user, increasing the contact point between the earphone 100 and the head of the user, thereby making the wearing of the earphone 100 more comfortable and stable. Optionally, the attaching member 212 includes an elastic material, and under the action of the clamping force of the clamping member 11, the attaching member 212 can generate a certain elastic compression deformation, so as to increase the contact area between the attaching member 212 and the head of the user, and further improve the wearing comfort of the earphone 100.

Referring to fig. 9 to 12, 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. The first case 24 includes two side walls 241 disposed spaced apart from each other in the first vertical direction and a bottom wall 242 connecting the two side walls 241 in the first vertical direction, and the thickness of the two side walls 241 in the second vertical direction is greater than the thickness of the bottom wall 242 in the second vertical direction to form a first telescopic groove 246 between the two side walls 241. Optionally, a wiring groove 2411 is formed on the bottom wall 242. The bottom wall 242 is connected between the two side walls 241, so that the routing position of the wire bundle 14 is relatively centered, the bending of the wire bundle 14 can be reduced, the length of the wire bundle 14 is shortened, and the material consumption is saved.

In an embodiment, as shown in fig. 9-12, the projection of the wiring groove 2411 along the second vertical direction at least partially falls into one of the two side walls 241, so that the wiring groove 2411 is at least partially opened on the side wall 241, and the thickness of the side wall 241 in the second vertical direction can be fully utilized, and compared with the thickness of the wiring groove 2411 opened on the bottom wall 242, the thickness of the bottom wall 242 in the second vertical direction can be reduced, which is beneficial to miniaturization of the product.

Referring to fig. 9, in an embodiment, the projections of the wiring groove 2411 and the first telescopic groove 246 along the first vertical direction at least partially overlap. By the arrangement, under the condition that the size of the wiring groove 2411 is fixed, the protruding size of the side wall 241 towards the attaching piece 212 can be reduced, and then the size of the side wall 241 along the second vertical direction is reduced, which is beneficial to miniaturization of products.

In an embodiment, as shown in fig. 9-12, the other side of the first housing 24 facing away from the first telescopic slot 246 is further provided with a glue reducing slot 2412, and a projection of the glue reducing slot 2412 in the second vertical direction falls at least partially within the other of the two side walls 241. When the wiring groove 2411 is formed in one of the side walls 241, the width of the side wall 241 in the first vertical direction is relatively large in order to accommodate the wire harness 14. In general, in order to make the appearance of the first housing 24 more attractive, the two side walls 241 may be symmetrically disposed about the bottom wall 242, so that the width of the other side wall 241 in the first vertical direction is equal to the width of the side wall 241 with the wiring groove 2411 in the first vertical direction, that is, the width of the other side wall 241 is relatively larger, and by providing the glue reducing groove 2412, the wall thickness of the other side wall 241 may be reduced, so that the wall thickness is more uniform, and the deformation in the injection cooling process is reduced.

In one embodiment, the length of the routing groove 2411 and the glue reducing groove 2412 is not less than 50% of the length of the two sidewalls 241 in the telescoping direction. As shown in fig. 13, if the length l ₁ of the wire groove 2411 is less than 50% of the length l of the side wall 241, the wire bundle 14 visible from the outside of the first housing 24 will have a longer length outside of the wire groove 2411, lateral displacement of the wire bundle 14 is less constrained, and the wire bundle 14 is easily displaced. The length of the wiring groove 2411 is not less than 50% of the length of the two side walls 241, so that the wire bundles 14 visible from the outside of the first housing 24 are embedded in the wiring groove 2411 as much as possible, and the lateral displacement of the wire bundles 14 is limited by the groove wall of the wiring groove 2411, so that the wire bundles 14 are not easy to displace. If the length l ₂ of the glue reducing grooves 2412 is less than 50% of the length l of the two side walls 241, the relatively short length of the glue reducing grooves 2412 on the first housing 24 will result in uneven wall thickness in the partial areas and deformation during the injection cooling process. Optionally, the lengths of the wiring grooves 2411 and the glue reducing grooves 2412 are 60%, 70%, 80%, 90% or the like of the lengths of the two side walls 241, which are not particularly limited herein.

Further, the length of the portion of the wire groove 2411 that falls into one of the two side walls 241 is not less than 50% of the length of the wire groove 2411, and the length of the portion of the glue groove 2412 that falls into the other of the two side walls 241 is not less than 50% of the length of the glue groove 2412. So set up, make wire way 2411 and subtract gluey groove 2412 set up on the lateral wall 241 as far as possible, wherein, offer wire way 2411 on lateral wall 241, can make full use of lateral wall 241 is great thickness in the second vertical direction, for wire way 2411 is offered on the diapire 242, can reduce the thickness of diapire 242 in the second vertical direction, be favorable to the miniaturization of product, offer the gluey groove 2412 on another lateral wall 241 that does not set up wire way 2411, can reduce the wall thickness of another lateral wall 241 for the wall thickness is more even, reduces the deformation in the cooling process of moulding plastics. Optionally, the length of the portion of the routing groove 2411 and the glue reducing groove 2412 that falls into the side wall 241 is 60%, 70%, 80%, 90% or the like of the length of the side wall 241.

Optionally, the wire slot 2411 extends through the first housing 24 in a telescoping direction such that the wire bundle 14 can pass from the wire slot 2411 into the first end of the securing assembly 21 and out of the wire slot 2411 into the second end of the securing assembly 21.

Referring to fig. 9-12, optionally, the first housing 24 and/or the second housing 25 are provided with a plug hole 232 for plugging the headband assembly 10, and the harness 14 is threaded into the space enclosed by the first housing 24 and the second housing 25 along the plug hole 232. By threading the harness 14 through the mating holes 232, the number of openings in the housing assembly 23 can be reduced, thereby reducing the impact of the openings on the appearance of the housing assembly 23. The first housing 24 is also provided with a first wire hole 2422 proximate the first end of the mounting assembly 21 and in communication with the wire groove 2411, the wire harness 14 further extending to the other side of the first housing 24 facing away from the first telescoping slot 246 via the first wire hole 2422. By providing the first routing hole 2422, the wire bundle 14 extends to the other side of the first housing 24, which is away from the first telescopic slot 246, via the first routing hole 2422, on one hand, the wire bundle 14 can be located outside the telescopic cavity 231 to avoid interference with the wire bundle 14 when the telescopic piece 221 moves, and on the other hand, the hole wall of the first routing hole 2422 can limit lateral movement of the wire bundle 14 to limit the position of the wire bundle 14 penetrating into the fixing assembly 21, so that the position of the wire bundle 14 is relatively fixed, and the wire bundle 14 is not easy to shift. Illustratively, a first trace hole 2422 is formed in the bottom wall 242, the first trace hole 2422 extending through two oppositely disposed surfaces of the bottom wall 242 in a second vertical direction. The first routing hole 2422 may be disposed adjacent to the first locking hole 2421.

Referring to fig. 9-12, the first housing 24 includes two end walls 243 spaced apart from each other in the telescoping direction and connecting the two side walls 241. The end wall 243, the side wall 241 and the bottom wall 242 may enclose a positioning slot 247 for mounting the fitting 212. The first housing 24 is further provided with a second routing hole 2431 near the second end of the fixing assembly 21 and communicating with the routing slot 2411, the second routing hole 2431 penetrating through the sidewall 241 and/or the end wall 243 near the second end of the fixing assembly 21, the wire bundle 14 further extending toward the speaker assembly 30 via the second routing hole 2431. Specifically, the second routing hole 2431 may extend through the side wall 241, through the end wall 243, or a portion of the second routing hole 2431 extends through the side wall 241 and another portion extends through the end wall 243. The second routing hole 2431 is arranged at the side wall 241 and/or the end wall 243 near the second end of the fixing component 21, so that the penetrating part of the wire bundle 14 from the fixing component 21 is as close to the side where the speaker component 30 is located as possible, the length of the wire bundle 14 exposed out of the fixing component 21 is reduced, the influence of the wire bundle 14 on the appearance of a product is reduced, in addition, the hole wall of the second routing hole 2431 can limit the lateral movement of the wire bundle 14, limit the penetrating part of the wire bundle 14 out of the fixing component 21, ensure that the position of the wire bundle 14 is relatively fixed, and the wire bundle 14 is not easy to shift.

Optionally, the opening direction of the second routing hole 2431 and the extending direction of the routing groove 2411 form an included angle. Generally, telescoping member 221 extends generally from a central region of the second end of housing assembly 23 into telescoping chamber 231, which may provide a more aesthetically pleasing product appearance. The second wiring hole 2431 is arranged to form an included angle with the extending direction of the wiring groove 2411, so that the wire bundle 14 can avoid the telescopic member 221 from the position where the wire bundle 14 passes out of the fixing assembly 21, for example, the passing-out position of the wire bundle 14 can be arranged on the side edge of the telescopic member 221, and the second wiring hole 2431 is formed on one side of the head of the user away from the face in the wearing state, so that the telescopic member 221 can partially shield the wire bundle 14, and therefore the influence on the appearance of a product after the wire bundle 14 passes out of the fixing assembly 21 is reduced. When the opening direction of the second wiring hole 2431 and the extending direction of the wiring groove 2411 form an included angle, the wire bundle 14 is bent at the position of penetrating out of the fixing component 21, which has a certain influence on the threading process. Further, the first housing 24 is provided with a wire alignment groove 2423, the wire alignment groove 2423 is communicated with the second wire hole 2431, and the extending direction of the wire alignment groove 2423 is the same as the opening direction of the second wire hole 2431. Illustratively, as shown in fig. 11, the outlet alignment groove 2423 may be at least partially located in the bottom wall 242. When the wire bundle 14 is assembled, the wire-out alignment groove 2423 can guide the wire bundle 14 into the second wire-running hole 2431, thereby facilitating the assembly alignment of the wire bundle 14 and improving the assembly efficiency.

The length of the wire harness 14 located outside the second end of the fixing member 21 is greater than the maximum elongation of the expansion member 221, and the wire harness 14 can be prevented from being pulled during the expansion movement of the expansion member 221, so that the service life of the wire harness 14 can be improved.

Referring to fig. 10, the fixing assembly 21 includes a first limiting member 213, and the first limiting member 213 is sleeved on the wire bundle 14. The first limiting member 213 is illustratively a buckle or a snap ring, and may be made of plastic or metal, so that the first limiting member 213 is sleeved on the wire bundle 14, and the first limiting member 213 and the wire bundle 14 are relatively fixed. The first housing 24 further has a wire harness limiting groove 2424 adjacent to the second wire hole 2431 at the opening of the wire groove 2411, and the first limiting member 213 is engaged in the wire harness limiting groove 2424. By arranging the wire harness limiting groove 2424 to limit the displacement of the first limiting piece 213, since the first limiting piece 213 is sleeved on the wire harness 14, the first limiting piece 213 is relatively fixed with the wire harness 14, and therefore the wire harness limiting groove 2424 can limit the displacement of the wire harness 14, and the wire harness 14 is not easy to pull out of the fixing assembly 21.

Alternatively, the harness 14 passes out of the fixing member 21 from the second end of the fixing member 21 near the speaker member 30, and then passes into the speaker member 30 via the end of the speaker member 30 connected to the expansion member 221 so as to be electrically connected to the speaker member 30. So set up, the part that the lead bundle 14 is located fixed subassembly 21 and is close to between the second end of speaker subassembly 30 and the speaker subassembly 30 all exposes in the air, and this part lead bundle 14 is not restricted by telescopic assembly 22, and when telescopic member 221 moved towards bandeau subassembly 10, the lead bundle 14 can have great free deformation length, can increase the length of the section of buckling of lead bundle 14, prevents the section of buckling of lead bundle 14 and excessively short influences life.

In an embodiment, as shown in fig. 10, the telescopic member 221 is provided with a third routing hole 2211, and the wire bundle 14 penetrates into the telescopic assembly 22 from the third routing hole 2211, so that the wire bundle 14 can be hidden in the telescopic assembly 22, and the length of the exposed portion of the wire bundle 14 is reduced as much as possible under the premise of ensuring that the telescopic member 221 can be freely telescopic, so as to reduce the influence of the exposure of the wire bundle 14 on the appearance of the product. Optionally, a covering is provided outside the telescoping member 221 to secure the harness 14 to the telescoping member 221 and prevent the harness 14 from being exposed to the telescoping assembly 22. Further, the telescopic assembly 22 further includes a second limiting member 223, where the second limiting member 223 is sleeved on the wire bundle 14, and forms interference with the third wire hole 2211 at a side of the third wire hole 2211 close to the speaker assembly 30. The second limiting member 223 may be a buckle or a clasp, and may be made of plastic or metal, so that the second limiting member 223 is sleeved on the wire bundle 14, and the second limiting member 223 and the wire bundle 14 are relatively fixed. Optionally, the second limiting member 223 is disposed in the same manner as the first limiting member 213, so as to reduce the variety of materials. By providing the second stopper 223 to cooperate with the third routing hole 2211, the displacement of the wire harness 14 can be restricted, so that the wire harness 14 is not easily pulled out of the telescopic assembly 22.

To prevent the telescoping member 221 from pulling the wire bundle 14 during telescoping movement, the length of the wire bundle 14 outside the second end of the securing assembly 21 is greater than the maximum extension of the telescoping member 221, and as the telescoping member 221 moves toward the headgear assembly 10, the portion of the wire bundle 14 bends, with which the conductive medium (e.g., wire) inside the wire bundle 14 bends. Adjusting the distance between the speaker assembly 30 and the headband assembly 10 by the telescoping member 221 will repeatedly bend the harness 14 located outside the second end of the fixing assembly 21, which may cause fatigue damage to the conductive medium, such as wire breakage, thereby affecting the reliability of the electrical connection between the harness 14 and the speaker assembly 30.

Referring to fig. 10, in one embodiment, the harness 14 includes a plurality of wires 141 and an insulating sheath 142, the plurality of wires 141 extending from the headband assembly 10 to the speaker assembly 30. The conductive wire 141 may include a conductive medium, and the insulating sheath 142 may be made of elastic material such as silica gel or rubber. The insulating sheath 142 is covered in the wire harness limiting groove 2424 and on the plurality of wires 141 facing the speaker assembly 30 side of the wire harness limiting groove 2424. When the telescopic piece 221 moves in a telescopic way, the insulating sheath 142 and the plurality of wires 141 are synchronously bent, and the insulating sheath 142 is positioned outside the plurality of wires 141 due to the certain thickness of the insulating sheath 142, so that the bending section of the wires 141 is not too short, the fatigue failure probability of the wires 141 is reduced, and the service life of the wires 141 is prolonged. The harness limiting grooves 2424 are not covered by the insulating sheath 142 on the plurality of wires 141 facing one side of the headband assembly 10, so that the cross-sectional area of the wire bundle 14 can be reduced, the occupation of the wire bundle 14 to the internal space of the fixing assembly 21 is reduced, and the miniaturization of products is facilitated. Optionally, the plurality of wires 141 on the side of the harness limiting groove 2424 facing the headband assembly 10 are covered with a plastic film, the thickness of the plastic film is significantly smaller than the thickness of the insulating sheath 142, for example, the thickness of the plastic film is less than 10% of the thickness of the insulating sheath 142, and the plastic film gathers the plurality of wires 141 together to form the wire bundle 14, so as to facilitate the assembly of the wires 141.

In one embodiment, as shown in fig. 7, the telescopic assembly 22 includes a telescopic member 221 and at least two damping portions 222. One end of the expansion piece 221 is slidably accommodated in the expansion cavity 231, the other end of the expansion piece 221 is connected with the loudspeaker assembly 30, at least two damping portions 222 are arranged on the expansion piece 221 along the circumferential direction of the expansion piece 221 at intervals, and each damping portion 222 is elastically abutted against the cavity wall of the expansion cavity 231 in different directions. The damping portions 222 may include elastic materials, such as silica gel or rubber, and each damping portion 222 may be in interference fit with the wall of the telescopic cavity 231, so that the damping portion 222 elastically deforms, so that the telescopic member 221 has a certain resistance when sliding in the telescopic cavity 231, and a user can conveniently perceive the relative sliding between the telescopic member 221 and the fixing component 21, and the hand feeling when adjusting the distance between the speaker component 30 and the headband component 10 through the telescopic member 221 can be improved. The at least two damping portions 222 are arranged on the telescopic member 221 along the circumferential direction of the telescopic member 221 at intervals, each damping portion 222 is elastically abutted against the cavity wall of the telescopic member 231 in different directions respectively, at least two abutted points are arranged between the periphery of the telescopic member 221 and the cavity wall of the telescopic member 231, the cavity wall forms at least two supporting acting forces on the telescopic member 221, the directions of the at least two supporting acting forces are different, the cavity wall forms multi-point support on the telescopic member 221, so that the stress of the telescopic member 221 when sliding in the telescopic member 231 is more uniform, the possibility of jamming in the telescopic stroke can be reduced, and the distance between the loudspeaker assembly 30 and the headband assembly 10 is adjusted more smoothly.

Alternatively, the number of the damping portions 222 is 2, 3 or 4, which is not particularly limited herein. The more the damping portion 222 is provided, the more the supporting force is applied to the telescopic member 221 by the cavity wall, and the direction of the supporting force is different, the cavity wall forms multi-point support to the telescopic member 221, so that the supporting pads are uniformly distributed on the periphery of the telescopic member 221, and the stress of the telescopic member 221 during sliding in the telescopic cavity 231 is uniform.

Alternatively, as shown in fig. 8, the number of the damping portions 222 is 2, and the damping portions 222 include a first damping portion 222a and a second damping portion 222b. The number of the damping parts 222 is 2, so that the stress of the telescopic piece 221 when sliding in the telescopic cavity 231 is more uniform, and the processing difficulty of the telescopic assembly 22 can be reduced. The first damping portion 222a and the second damping portion 222b are respectively disposed on opposite sides of the expansion member 221 in a protruding manner, and the extending direction of the first damping portion 222a is opposite to the extending direction of the second damping portion 222b, so that the supporting actions of the first damping portion 222a and the second damping portion 222b on the expansion member 221 are respectively located on two sides of the expansion member 221, and the expansion member 221 is symmetrically stressed when sliding in the expansion chamber 231, thereby reducing the possibility of jamming in the expansion stroke.

Alternatively, the housing assembly 23 is of an integral structure, for example, the housing assembly 23 is integrally formed by an injection molding process, and the interior thereof is formed with the expansion chamber 231. The shell assembly 23 with the integrated structure has better integrity, the cavity wall of the telescopic cavity 231 can be smoother, the telescopic cavity is convenient to be in abutting fit with the damping portion 222, and the extending direction of the damping portion 222 is limited less.

In one embodiment, as shown in fig. 7 and 8, the housing assembly 23 includes a first housing 24 and a second housing 25, and the first housing 24 and the second housing 25 enclose a telescopic cavity 231. The shell assembly 23 is split, the telescopic cavity 231 is formed by enclosing the first shell 24 and the second shell 25, so that the telescopic cavity 231 can be formed by enclosing an open groove, and the processing difficulty of the shell assembly 23 can be reduced relative to the integral processing forming of the shell assembly 23. One of the first housing 24 and the second housing 25 is disposed close to the head of the user in the wearing state, and the other of the first housing 24 and the second housing 25 is disposed away from the head of the user, so that when the first housing 24 and the second housing 25 enclose to form the telescopic cavity 231, the splice seam between the first housing 24 and the second housing 25 avoids the side of the fixing assembly 21 contacting the head of the user, for example, the splice seam between the first housing 24 and the second housing 25 can be located on the side of the fixing assembly 21 close to the top of the head and on the side close to the chin, and wearing comfort of the earphone 100 can be improved.

Further, the first damping portion 222a and the second damping portion 222b elastically abut the first housing 24 and the second housing 25, respectively. Specifically, the first damping portion 222a may abut one of the first housing 24 and the second housing 25, and the second damping portion 222b may abut the other of the first housing 24 and the second housing 25. The splice seam between the first housing 24 and the second housing 25 may be located on the side of the fastening assembly 21 near the top of the head and on the side near the chin, which may improve the comfort of wearing the headset 100. The first damping portion 222a and the second damping portion 222b are respectively elastically abutted against the first casing 24 and the second casing 25, so that a splicing seam between the first casing 24 and the second casing 25 can be avoided when the damping portion 222 is abutted against the cavity wall of the telescopic cavity 231, and uneven stress of the telescopic piece 221 caused by uneven splicing seam positions in sliding in the telescopic cavity 231 is prevented.

Alternatively, the damping portion 222 is integrally formed with the expansion member 221. For example, at least two protrusions are arranged at intervals along the circumferential direction of the telescopic member 221, and elastic materials such as silica gel or rubber are coated on the protrusions to form the damping portion 222, or glue or film is coated on the protrusions to form the damping portion 222. The damping portion 222 and the telescopic member 221 are integrally formed, so that the telescopic assembly 22 has good integrity.

Alternatively, the damping portion 222 and the expansion member 221 are separately processed and then assembled and connected. The damping part 222 and the telescopic part 221 are provided as separate parts, so that the damping part 222 and the telescopic part 221 can be respectively formed by processing different materials, for example, the damping part 222 is made of elastic materials with relatively low hardness, such as silica gel or rubber, so that the damping part 222 has certain elasticity, the hand feeling of the distance between the loudspeaker assembly 30 and the headband assembly 10 can be improved when the distance between the loudspeaker assembly 30 and the headband assembly 10 is adjusted through the telescopic part 221, and correspondingly, the telescopic part 221 can be made of materials with relatively high hardness, such as plastics or metals, so that the telescopic part 221 has higher strength, and the service life of the telescopic part 221 can be prolonged.

Optionally, the damping portion 222 is adhesively attached to the telescoping member 221. Or the telescopic piece 221 is provided with at least one mounting hole 2212, and the first damping portion 222a and the second damping portion 222b are inserted into the at least one mounting hole 2212 in an interference fit manner, as shown in fig. 8. Specifically, the number of the mounting holes 2212 may be two, two opposite sides of the expansion piece 221 are respectively provided with one mounting hole 2212, each mounting hole 2212 is provided with one damping portion 222, wherein the mounting holes 2212 may be through holes or blind holes, or the number of the mounting holes 2212 is one, the mounting holes 2212 penetrate through two opposite sides of the expansion piece 221, and the first damping portion 222a and the second damping portion 222b are respectively inserted into two opposite openings of the mounting hole 2212 in an interference fit manner, so that the first damping portion 222a and the second damping portion 222b are respectively arranged on two opposite sides of the expansion piece 221 in a protruding mode. The mounting hole 2212 is formed in the telescopic piece 221 to mount the damping portion 222, the damping portion 222 is only required to be inserted into the mounting hole 2212 to complete mounting, on one hand, the mounting hole 2212 can be used for positioning when the damping portion 222 is assembled, and mounting alignment of the damping portion 222 is facilitated, on the other hand, after the damping portion 222 is assembled into the mounting hole 2212, the damping portion 222 can be fixed on the hole wall of the mounting hole 2212, and the damping portion 222 can be connected to the telescopic piece 221 without gluing, so that assembly is more convenient and quicker.

In an embodiment, as shown in fig. 8 and 14, the number of the mounting holes 2212 is one, and the first damping portion 222a and the second damping portion 222b are connected to each other to form an integral piece, and the integral piece is inserted in the mounting holes 2212 in an interference fit manner. The first damping portion 222a and the second damping portion 222b are arranged to form an integral piece, so that the first damping portion 222a and the second damping portion 222b can be integrally machined and formed, the machining of the first damping portion 222a and the second damping portion 222b can be facilitated, the machining process of the damping portion 222 is simplified, and the integrity of the damping portion 222 can be enhanced.

Alternatively, in a reference section perpendicular to the axial direction of the mounting hole 2212, the cross-sectional dimension of the first damping portion 222a is larger than the cross-sectional dimension of the second damping portion 222b, and accordingly, the cross-sectional dimension of the end of the mounting hole 2212 in which the first damping portion 222a is inserted is larger than the cross-sectional dimension of the end in which the second damping portion 222b is inserted. When the damping portion 222 is installed, on one hand, the installation direction of the damping portion 222 can be rapidly identified through the difference of the cross section sizes, so that the assembly efficiency is improved, on the other hand, the second damping portion 222b with the relatively smaller cross section size can be placed into the installation hole 2212 to be inserted into one end of the first damping portion 222a, the resistance of the hole wall of the installation hole 2212 to the second damping portion 222b is small, the installation of the damping portion 222 can be facilitated, and therefore the assembly efficiency is further improved.

Optionally, as shown in fig. 15, the telescopic assembly 22 further includes a pull-holding portion 224 connected to the second damping portion 222b, and a cross-sectional dimension of the pull-holding portion 224 is smaller than a cross-sectional dimension of the mounting hole 2212 in a reference plane perpendicular to an axial direction of the mounting hole 2212. The pull grip 224 is used to assist in mounting the integrated component. For example, the pulling portion 224 may be integrally formed with the second damping portion 222b, and may have a strip shape, for example, a strip shape, so that the pulling portion 224 is convenient to hold the integral piece and move into the mounting hole 2212, the pulling portion 224 may be removed after the integral piece is mounted in place relative to the mounting hole 2212, or an opening or a groove may be provided on the pulling portion 224, a pull rope or a drag hook may be penetrated (or sleeved) and pulled into the mounting hole 2212 by holding the pull rope or drag hook, and the pull rope or drag hook may be removed after the integral piece is mounted in place relative to the mounting hole 2212, and the pulling portion 224 may remain in the second damping portion 222b. By providing the pull-grip 224 for assisting in mounting the integrated component, assembly efficiency can be improved.

Referring to fig. 8, 14 and 15, in an embodiment, a limiting groove 2221 is formed in the integral piece along the circumferential direction of the mounting hole 2212, a second limiting flange 226 is disposed on the inner wall of the mounting hole 2212 along the circumferential direction of the mounting hole 2212, and the second limiting flange 226 is embedded in the limiting groove 2221 to limit the integral piece along the axial direction of the mounting hole 2212, so that the integral piece is not easy to fall off from the mounting hole 2212, and the connection between the integral piece and the telescopic piece 221 is more reliable.

The section of the portion of the expansion member 221 accommodated in the expansion chamber 231 perpendicular to the expansion direction may be circular, elliptical or polygonal. Alternatively, the portion of the expansion member 221 accommodated in the expansion chamber 231 has a thickness direction and a width direction, the dimension in the width direction is larger than the dimension in the thickness direction, the cross section perpendicular to the expansion direction may be rectangular, and the mounting holes 2212 are connected to opposite sides of the expansion member 221 in the thickness direction. The mounting hole 2212 is arranged along the thickness direction of the telescopic piece 221, and the dimension of the width direction is larger than the dimension of the thickness direction, so that the opening area of the mounting hole 2212 is relatively large, the damping portion 222 with relatively large dimension is accommodated, the contact area between the damping portion 222 and the cavity wall of the telescopic cavity 231 can be increased, the stress of the telescopic piece 221 when sliding in the telescopic cavity 231 is more uniform, and the possibility of blocking in the telescopic stroke can be reduced.

Optionally, as shown in fig. 8, an end of the expansion piece 221 away from the speaker assembly 30 is provided with a limiting protrusion 225, the limiting protrusion 225 is used for limiting the expansion piece 221 to slide out of the expansion cavity 231, and the mounting hole 2212 is formed on the limiting protrusion 225. The arrangement of the limiting protrusion 225 and the cavity wall of the telescopic cavity 231 can limit the maximum telescopic travel of the telescopic part 221 when the telescopic part 221 slides towards one end of the loudspeaker assembly 30 and prevent the telescopic part 221 from sliding out of the telescopic cavity 231, on the other hand, the mounting hole 2212 is formed in the limiting protrusion 225, reinforcement can be formed at the position where the mounting hole 2212 is formed, weakening of the telescopic part 221 caused by the mounting hole 2212 is reduced, failure of the telescopic part 221 at the position where the mounting hole 2212 is formed is prevented, in addition, the limiting protrusion 225 partially protrudes out of the telescopic part 221, the mounting hole 2212 is formed on the limiting protrusion 225, when the integrated part is inserted into the mounting hole 2212, the limiting protrusion 225 is arranged on the periphery of the damping part 222 in a surrounding mode, the limiting protrusion 225 forms a protective shell of the damping part 222, the periphery of the damping part 222 at the maximum telescopic travel of the telescopic part 221 cannot touch the end wall of the telescopic cavity 231, and the service life of the damping part 222 can be prolonged.

The foregoing description is only a partial embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent devices or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.

Claims (14)

1. An earphone, comprising:

The head band assembly is wound on the periphery of the top of the head of a user in a wearing state and provides clamping force, and the connecting assembly is connected between the head band assembly and the speaker assembly;

The connecting assembly comprises a fixing assembly and a telescopic assembly, the fixing assembly is connected with the headband assembly, the telescopic assembly comprises a telescopic piece, one end of the telescopic piece is connected with the fixing assembly in a telescopic manner, and the other end of the telescopic piece is connected with the loudspeaker assembly;

The headband assembly includes a harness that passes through the fixed assembly from a first end of the fixed assembly proximate the headband assembly and out of the fixed assembly from a second end of the fixed assembly proximate the speaker assembly, the harness electrically connected to the speaker assembly.

2. The earphone of claim 1, wherein the fixing assembly is provided with a telescopic cavity, one end of the telescopic member is slidably accommodated in the telescopic cavity, the wire harness is disposed outside the telescopic cavity, the fixing assembly comprises a first housing and a fitting member, the first housing encloses to form at least part of the telescopic cavity, and a part of the wire harness disposed between the first end and the second end of the fixing assembly is visible from outside the first housing and covered by the fitting member.

3. The earphone of claim 2, wherein a first telescopic slot is formed on one side of the first housing, a wiring slot is formed on the other side of the first housing, which faces away from the first telescopic slot, the wire bundle is embedded in the wiring slot, and the attaching member covers the wiring slot.

4. A headset as claimed in claim 2 or 3, wherein in the worn condition the abutment is provided on a side of the first housing adjacent the head for abutment with a side of the head to effect assisted positioning of the headband assembly on the head.

5. A headset as claimed in claim 3, wherein the first housing 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 housing including two side walls disposed at a distance 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 being greater than the thickness of the bottom wall along the second vertical direction to form the first telescopic slot between the two side walls, the projection of the wiring slot along the second vertical direction at least partially falling within one of the two side walls.

6. The headset of claim 5, wherein the projection of the wire trace groove and the first telescoping groove along the first vertical direction at least partially overlap.

7. The earphone of claim 5, wherein the other side of the first housing facing away from the first telescoping slot is further provided with a glue reducing slot, a projection of the glue reducing slot in the second vertical direction at least partially falling within the other of the two side walls.

8. The earphone of claim 7, wherein the length of the wire slot and the glue reducing slot is no less than 50% of the length of both side walls in the telescoping direction;

The length of the portion of the wire groove falling into one of the two side walls is not less than 50% of the length of the wire groove, and the length of the portion of the glue reducing groove falling into the other of the two side walls is not less than 50% of the length of the glue reducing groove.

9. The headset of claim 7, wherein the mounting assembly further comprises a second housing mated with the first housing, the first housing and/or the second housing being provided with a mating hole for mating with the headband assembly, the harness passing along the mating hole into a space enclosed by the first housing and the second housing, the first housing further being provided with a first routing hole proximate the first end of the mounting assembly and in communication with the routing slot, the harness further extending to the other side of the first housing facing away from the first telescoping slot via the first routing hole.

10. The earphone of claim 9, wherein the first housing includes two end walls spaced apart from each other in the telescoping direction and connecting the two side walls, the first housing further being provided with a second routing hole near the second end of the fixed assembly and in communication with the routing slot, the second routing hole extending through the side walls and/or the end walls near the second end of the fixed assembly, the wire harness further extending toward the speaker assembly via the second routing hole.

11. The earphone of claim 10, wherein the opening direction of the second wire hole and the extending direction of the wire groove are set at an included angle, the first housing is provided with a wire alignment groove, the wire alignment groove is communicated with the second wire hole, and the extending direction of the wire alignment groove is the same as the opening direction of the second wire hole.

12. The headset of claim 11, wherein the securing assembly includes a first stop member that is disposed on the harness, the first housing further defines a harness stop slot adjacent the second wire aperture at the wire slot opening, and the first stop member is engaged in the harness stop slot.

13. The earphone of claim 12, wherein the extension member has a third wire hole, and the extension member further includes a second limiting member, wherein the second limiting member is sleeved on the wire bundle, and forms interference with the third wire hole at a side of the third wire hole, which is close to the speaker assembly.

14. The earphone of claim 13, wherein the wire harness includes a plurality of wires and an insulating sheath, the plurality of wires extending from the headband assembly to the speaker assembly, the insulating sheath being coated over the plurality of wires in and on a side of the harness limiting slot facing the speaker assembly, the insulating sheath not being coated over the plurality of wires on a side of the harness limiting slot facing the headband assembly.