Universal connection structure and earphone

Abstract

The utility model provides a universal connection structure and an earphone. The universal connection structure comprises a connection assembly, a shaft cover assembly and a reset assembly. The connecting assembly comprises a shaft body and a ball head, and the shaft body is connected with the ball head; the shaft cover assembly is provided with a first opening and a containing cavity partially matched with the ball head, the first opening extends along a first axis and communicates with the containing cavity, the ball head is located in the containing cavity, and the shaft body extends out of the containing cavity from the position where the ball head is located along a second axis; in the extending direction of the first axis, at least one part of the reset assembly is located on the side, away from the shaft body, of the ball head and elastically abuts against the side, away from the shaft body, of the ball head. The universal connecting structure has an initial state and a deflection state, in the initial state, the reset assembly is in a first elastic compression state, in the deflection state, an included angle is formed between the first axis and the second axis, and the reset assembly is further compressed by the ball head to be in a second elastic compression state. According to the universal connection structure and the earphone, deflection reset can be achieved, and the earphone can be stored and placed conveniently.

Description

Technical Field

[0001] The present application relates to the field of earphone technology, and in particular to a universal connection structure and earphone. Background Art

[0002] The universal connection structure includes a first connecting member and a second connecting member connected in a universal rotational manner. The first connecting member includes a ball head, and the second connecting member includes a ball head slot adapted to fit the ball head. The ball head is positioned in the ball head slot. The universal connection structure enables the ear hook and the ear shell to rotate relative to each other in any direction with the center of the ball head as the rotation point. This helps to adapt to the size and shape of different users' ears, making the user's headphones more comfortable and stable. However, after removing the headphones, the user needs to manually adjust the angle between the ear hook and the ear shell, which is inconvenient. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a universal connection structure that can achieve rebound reset through a reset component, making it more convenient and quick to use.

[0004] The present application also proposes an earphone comprising the above-mentioned universal connection structure.

[0005] According to an embodiment of the present application, the universal connection structure includes a connection assembly, a shaft cover assembly, and a reset assembly;

[0006] A connecting assembly includes a shaft body and a ball head, wherein the shaft body is connected to the ball head;

[0007] The shaft cover assembly is provided with a first opening and a receiving cavity partially adapted for the ball head, the first opening extending along a first axis and communicating with the receiving cavity, the ball head being located in the receiving cavity, and the shaft body extending from the location of the ball head along a second axis to the outside of the receiving cavity;

[0008] a reset assembly, wherein at least a portion of the reset assembly is located on a side of the ball head facing away from the shaft body along the extension direction of the first axis, and the reset assembly elastically abuts against the side of the ball head facing away from the shaft body;

[0009] In which, the universal connection structure has an initial state and a deflected state. In the initial state, the first axis and the second axis extend in the same direction, and the reset assembly is in a first elastic compression state. In the deflected state, there is an angle between the first axis and the second axis. Along the extension direction of the first axis, the reset assembly is further compressed by the ball head to the second elastic compression state.

[0010] According to the universal connection structure of the embodiment of the present application, there are at least the following beneficial effects: the ball head is located in the accommodating cavity, realizing a universal connection between the connecting assembly and the shaft cover assembly, and the reset assembly elastically abuts the ball head to ensure the rotation of the ball head in the accommodating cavity. The reset assembly in the second elastic compression state can rebound to the first elastic compression state along the extension direction of the first axis. When the connecting assembly is released, the reset assembly drives the ball head to rotate and reset in the accommodating cavity by rebounding until the universal connection structure changes from the deflected state to the initial state. Therefore, the universal connection structure of the present application can achieve reset without manual adjustment on the basis of ensuring the universal rotation connection between the connecting assembly and the shaft cover assembly, which is beneficial to saving storage time and making storage more convenient and quick.

[0011] According to some embodiments of the present application, along the extension direction of the first axis, one of the ball head and the reset assembly is provided with a reset groove, and the other is provided with a reset protrusion, the reset protrusion is located in the reset groove, the reset groove includes a bottom wall, a guide wall and an opening, and the guide wall extends from the bottom wall to the opening.

[0012] According to some embodiments of the present application, the reset assembly includes a reset member and an elastic member. Along the extension direction of the first axis, the reset member abuts the ball head, one end of the elastic member elastically abuts the side of the reset member away from the ball head, and the other end of the elastic member abuts the shaft cover assembly.

[0013] According to some embodiments of the present application, a guide cavity is provided on the side of the reset member facing the elastic member, part of the elastic member is located in the guide cavity and abuts the reset member, and a side wall of the reset member is provided with an avoidance opening along a direction perpendicular to the first axis, and the avoidance opening is connected to the guide cavity.

[0014] According to some embodiments of the present application, in the initial state, the side walls of the first opening are distributed around the outer peripheral wall of the shaft body, and there is a gap between the side walls of the first opening and the outer peripheral wall of the shaft body, and the angle between the side walls of the first opening and the outer peripheral wall of the shaft body is 0° to 30°.

[0015] According to some embodiments of the present application, the shaft cover assembly includes a first cover body and a second cover body, the first cover body and the second cover body are detachably connected, the first cover body and the second cover body jointly define an accommodating cavity, the reset assembly is located in the accommodating cavity, and the side wall of the reset assembly is provided with a limiting groove along a direction perpendicular to the first axis, and at least one of the first cover body and the second cover body is provided with a limiting protrusion, the limiting protrusion protrudes outward from the cavity wall of the accommodating cavity, and part of the limiting protrusion is placed in the limiting groove.

[0016] According to some embodiments of the present application, the shaft cover assembly is further provided with a second opening along a direction having an angle with the first axis, the second opening is connected to the accommodating cavity, and the ball head is convexly provided with a stop protrusion, which extends into the second opening.

[0017] According to some embodiments of the present application, the shaft body is provided with a wiring cavity, the ball head is provided with a wiring opening, the wiring opening is connected to the wiring cavity, and the shaft cover assembly is provided with a second opening, which is connected to the wiring opening.

[0018] According to some embodiments of the present application, the ball head is provided with a rotation-stopping protrusion, which extends from the outer periphery of the wiring opening to the second opening, and there is an angle between the opening direction of the second opening and the extension direction of the first axis.

[0019] An earphone according to an embodiment of the present application includes an ear shell, an ear hook, and the universal connection structure of any of the above embodiments, the ear shell is connected to the shaft cover assembly, and the ear hook is connected to the shaft body.

[0020] The earphones according to the embodiments of the present application have at least the following beneficial effects: through the universal connection structure, universal rotation adjustment between the ear shell and the ear hook can be achieved, and the angle adjustment between the ear shell and the ear hook can be achieved, so that when the universal connection structure is in a deflected state, it can also be reset through the reset component, which is beneficial to saving reset adjustment time.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the universal connection structure of an embodiment of the present application;

[0024] Figure 2 This is an exploded view of the universal connection structure of an embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of the structure of the earphone according to the embodiment of the present application;

[0026] Figure 4 This is a cross-sectional view of the universal connection structure according to an embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of the structure of the connection components of an embodiment of the present application;

[0028] Figure 6 for Figure 4 A partial enlarged schematic diagram of point A in the middle;

[0029] Figure 7 This is a schematic structural diagram of the reset component according to an embodiment of the present application.

[0030] Reference numerals: connecting component 100, shaft body 110, wire routing cavity 111, ball head 120, wire routing opening 121, reset groove 130, bottom wall 131, guiding wall 132, opening portion 133, anti-rotation protrusion 140;

[0031] Shaft cover assembly 200, first opening 210, accommodation cavity 220, first cover body 230, second cover body 240, limiting protrusion 250, first protruding wall 251, second protruding wall 252, second opening 260;

[0032] Reset assembly 300, reset member 310, reset protrusion 311, guiding cavity 312, avoidance opening 313, limiting groove 314, first limiting wall 3141, second limiting wall 3142, elastic member 320;

[0033] Ear shell 400;

[0034] Ear hook 500. Detailed implementation manners

[0035] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0037] In the description of the present application, the meaning of several is more than one, and the meaning of multiple is two or more. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence of the indicated technical features.

[0038] In the description of the present application, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present application in combination with the specific content of the technical solution.

[0039] In the description of the present application, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0040] The embodiments of the present application will be introduced below with reference to the accompanying drawings of the specification:

[0041] Reference Figures 1 to 4 , according to the universal joint structure of the embodiment of the present application, it includes a connection component 100, a shaft cover component 200, and a reset component 300. The connection component 100 includes a shaft body 110 and a ball head 120. The shaft body 110 is connected to the ball head 120. The shaft cover component 200 is provided with a first opening 210 and a receiving cavity 220 that partially adapts to the ball head 120. The first opening 210 extends along a first axis and communicates with the receiving cavity 220. The ball head 120 is located in the receiving cavity 220. The shaft body 110 extends from the location where the ball head 120 is located along a second axis to the outside of the receiving cavity 220. The cooperation between the ball head 120 and the receiving cavity 220 realizes the universal rotational connection between the connection component 100 and the shaft cover component 200. Along the extension direction of the first axis, at least a part of the reset component 300 is located on the side of the ball head 120 away from the shaft body, and the reset component 300 elastically abuts against the side of the ball head 120 away from the shaft body 110. When the connection component 100 rotates relative to the shaft cover component 200, the ball head 120 abuts against the reset component 300 and moves along the extension direction of the second axis, and part of the reset component 300 is elastically compressed to ensure the rotation of the ball head 120 in the receiving cavity 220.

[0042] It should be noted that the receiving cavity 220 that partially adapts to the ball head 120 means that the outer surface of the ball head 120 is spherical, and the shape of the cavity wall of part of the receiving cavity 220 is the same as the outer surface shape of the ball head 120. The ball head 120 and the receiving cavity 220 can be in clearance fit to realize the rotation of the ball head 120 in the receiving cavity 220.

[0043] The universal connection structure has an initial state and a deflected state. A portion of the reset assembly 300 can be elastically compressed along the extension direction of the first axis. Depending on the degree of elastic compression, the reset assembly 300 has a first elastically compressed state and a second elastically compressed state. In the initial state, the first and second axes extend in the same direction, and the reset assembly is in the first elastically compressed state. In the deflected state, the first and second axes form an angle, and the reset assembly 300 is further compressed by the ball head 120 along the extension direction of the first axis to the second elastically compressed state. When the connection assembly 100 is released from external force, the elastically compressed portion of the reset assembly 300 rebounds along the extension direction of the first axis, driving the ball head 120 to rotate relative to the shaft cover assembly 200, causing the universal connection structure to return to its initial state and achieve deflection reset between the connection assembly 100 and the shaft cover assembly 200 without the need for manual adjustment and reset by the user, which helps shorten reset time and makes storage more convenient and quick.

[0044] Specifically, the shaft 110 is used to connect the ear hook 500, and the shaft cover assembly 200 is used to connect the ear shell 400. The ear hook 500, the ear shell 400 and the universal connection structure form a universally rotatable earphone to better adapt to the ear size and / or shape of different users. The first opening 210 is arranged along the extension direction of the first axis, and the shaft 110 is extended along the second axis. For example, the first opening 210 is a truncated cone-shaped opening, the first axis is the axis of the truncated cone, the shaft 110 is cylindrical, and the second axis is the axis of the cylinder. In the initial state, the first axis and the second axis extend in the same direction, and the universal rotation between the connecting assembly 100 and the shaft cover assembly 200 includes rotation around the first axis or the second axis, and deflection between the first axis and the second axis. When a user wears the earphones, an external force drives the connecting assembly 100 to deflect relative to the shaft cover assembly 200. During this deflection, the ball head 120 rotates within the accommodating cavity 220 and abuts the reset assembly 300. Part of the reset assembly 300 elastically deforms and moves along the extension direction of the second axis to avoid the ball head 120, ensuring rotation of the ball head 120. After the deflection, an angle is formed between the first and second axes. When the user removes the earphones, the reset assembly 300 rebounds, driving the ball head 120 to rotate within the accommodating cavity 220 until the first and second axes extend in the same direction, thereby resetting the connecting assembly 100 relative to the shaft cover assembly 200 without the user having to manually adjust the deflection between the connecting assembly 100 and the shaft cover assembly 200. For example, when the earphones are removed from the charging compartment, they are in the initial state. When the user wears the earphones, they are in the deflected state. When the user removes the earphones, they automatically return to the initial state, matching the shape of the groove in the charging compartment for storage, making it easier to store the earphones.

[0045] It should be noted that the wall of the accommodating cavity 220 may be elastic. When the ball head 120 rotates in the accommodating cavity 220, the wall of the accommodating cavity 220 may adaptively produce elastic deformation to ensure smooth rotation of the ball head 120 in the accommodating cavity 220. In addition, a gap may be provided between the wall of the accommodating cavity 220 and the outer peripheral wall of the ball head 120, which is beneficial to further improve the smoothness of the rotation of the ball head 120 in the accommodating cavity 220.

[0046] In addition, the first axis and the second axis extend in the same direction, including two situations: the first axis and the second axis are collinear, and the first axis is parallel to the second axis.

[0047] refer to Figures 2 to 5 In some embodiments, along the extension direction of the first axis, one of the ball head 120 and the reset assembly 300 is provided with a reset groove 130, and the other is provided with a reset protrusion 311. The reset protrusion 311 is located in the reset groove 130. The reset groove 130 includes a bottom wall 131, a guide wall 132 and an opening 133. The guide wall 132 extends from the bottom wall 131 to the opening 133. The guide wall 132 is used to provide a guide for the movement of the reset protrusion 311. When the reset assembly 300 rebounds along the extension direction of the first axis, the reset protrusion 311 can slide from the opening 133 to the bottom wall 131 along the guide wall 132, thereby realizing the reset of the universal connection structure.

[0048] For example, along the extension direction of the first axis, a reset groove 130 is defined on the side of the ball head 120 facing the reset assembly 300. A reset protrusion 311 is defined on the side of the reset assembly 300 facing the ball head 120. The reset protrusion 311 is located in the reset groove 130. The reset groove 130 includes a bottom wall 131, a guide wall 132, and an opening 133. Along the extension direction of the first axis, the guide wall 132 extends from the bottom wall 131 to the opening 133, and the reset protrusion 311 elastically abuts against the bottom wall 131. Driven by external force, the connecting component 100 deflects relative to the shaft cover component 200, that is, the ball head 120 rotates in the accommodating cavity 220. The rotation of the ball head 120 causes the abutment position of the reset protrusion 311 to move along the guide wall 132 from the bottom wall 131 to the opening 133. At the same time, along the extension direction of the first axis, part of the reset component 300 is further elastically compressed under the abutment of the ball head 120, which is used to avoid the rotation of the ball head 120 in the accommodating cavity 220, thereby ensuring the deflection adjustment between the connecting component 100 and the shaft cover component 200. At this time, the universal connection structure is in a deflected state.

[0049] When the connecting component 100 loses the external force drive or the external force is less than the component force exerted by the reset component 300 on the ball head 120, the compressed part of the reset component 300 rebounds along the extension direction of the first axis, so as to drive the reset protrusion 311 to move from the opening 133 along the guiding wall 132 to the bottom wall 131, and then drive the ball head 120 to rotate in the accommodating cavity 220 until the reset protrusion 311 abuts against the bottom wall 131, realizing the reset of the connecting component 100. At this time, the first axis and the second axis extend in the same direction. Thus, the reset component 300 can realize the reset of the connecting component 100 after deflection through elastic compression and rebound, which is more convenient and fast on the basis of ensuring the deflection adjustment of the connecting component 100 and the shaft cover component 200. Moreover, the abutment of the reset protrusion 311 and the bottom wall 131, and the extension direction of the first axis passes through the center of the bottom wall 131, which is beneficial to improving the reset accuracy of the connecting component 100.

[0050] Reference Figures 2 to 5 , in some other embodiments, along the extension direction of the first axis, a reset protrusion 311 is provided on the side of the ball head 120 facing the reset component 300, and a reset groove 130 is provided on the side of the reset component 300 facing the ball head 120. The reset protrusion 311 is located in the reset groove 130. The reset groove 130 includes a bottom wall 131, a guiding wall 132 and an opening 133. Along the extension direction of the first axis, the guiding wall 132 extends from the bottom wall 131 to the opening 133, and the bottom wall 131 elastically abuts against the reset protrusion 311 to ensure the rotation of the ball head 120 in the accommodating cavity 220. At the same time, the compressed part of the reset component 300 rebounds to provide a driving force for the rotation of the ball head 120, realizing the reset between the connecting component 100 and the shaft cover component 200, that is, resetting to the position where the first axis and the second axis extend in the same direction.

[0051] Specifically, under the drive of the external force, the connecting component 100 deflects relative to the shaft cover component 200. During the deflection, the ball head 120 rotates in the accommodating cavity 220, and the reset protrusion 311 slides from the bottom wall 131 along the guiding wall 132 to the opening 133, and part of the reset component 300 is compressed, so that the reset component 300 generates a displacement along the extension direction of the first axis to ensure the rotation of the ball head 120 in the accommodating cavity 220 and ensure the deflection adjustment between the connecting component 100 and the shaft cover component 200. At this time, the universal connection structure is in a deflected state.

[0052] When the connecting assembly 100 loses external driving force or the external force is less than the component force applied by the reset assembly 300 to the reset protrusion 311, the compressed portion of the reset assembly 300 rebounds, and the reset assembly 300 drives the reset protrusion 311 to slide from the opening 133 along the guide wall 132 toward the bottom wall 131, thereby driving the ball head 120 to rotate and reset within the accommodating cavity 220 until the reset protrusion 311 abuts the bottom wall 131, thereby resetting the connecting assembly 100 and causing the first and second axes to extend in the same direction. Thus, through elastic compression and rebound, the reset assembly 300 can achieve the reset of the connecting assembly 100 after deflection, while meeting the deflection adjustment requirements of the connecting assembly 100 and the shaft cover assembly 200.

[0053] refer to Figures 2 to 5 It should be noted that in any of the above embodiments, the reset protrusion 311 may include a curved surface structure, and the surface of the guide wall 132 may be configured as a curved surface, which is beneficial for improving the smoothness of the reset protrusion 311 sliding along the guide wall 132, thereby making the deflection adjustment and reset between the connection assembly 100 and the shaft cover assembly 200 smoother. The force applied by the reset protrusion 311 to the guide wall 132 includes a component of the force that drives the ball head 120 to rotate in the accommodating cavity 220, and a component of the force that maintains the ball head 120 in contact with the cavity wall of the accommodating cavity 220. During the process of driving the ball head 120 to rotate and reset, the reset protrusion 311 gradually approaches the bottom wall 131, and the component of the force that drives the ball head 120 to rotate in the accommodating cavity 220 gradually decreases until the reset protrusion 311 abuts the bottom wall 131, thereby achieving the reset of the connection assembly 100.

[0054] In addition, the elastic abutment means that the reset protrusion 311 itself can produce a certain elastic deformation, or part of the reset assembly 300 can produce elastic deformation, and the elastically deformed part abuts the reset protrusion 311 so that the reset protrusion 311 elastically abuts the groove wall of the reset groove 130.

[0055] refer to Figures 2 to 4In some embodiments, the reset assembly 300 includes a reset member 310 and an elastic member 320. Along the extension direction of the first axis, the reset member 310 abuts the ball head 120. One end of the elastic member 320 elastically abuts the side of the reset member 310 facing away from the ball head 120, while the other opposite end of the elastic member 320 abuts the shaft cover assembly 200, so that the reset member 310 elastically abuts the ball head 120. The elastic member 320 is elastically compressed to maintain the elastic abutment between the reset member 310 and the ball head 120. At this time, the reset assembly 300 is in a first elastically compressed state. Under the action of an external force, the shaft body 110 drives the ball head 120 to rotate, and the ball head 120 drives the reset member 310 to move along the extension direction of the first axis. The elastic member 320 is further compressed, providing space for the reset member 310 to move, thereby ensuring the rotation of the ball head 120 within the accommodating cavity 220. At this time, the reset assembly 300 is in a second elastically compressed state. When the external force is lost or the external force is smaller than the component force indirectly applied to the ball head 120 by the elastic member 320, the elastic member 320 rebounds and resets along the extension direction of the first axis, driving the reset member 310 to move toward the direction close to the ball head 120 to drive the ball head 120 to rotate, thereby realizing the deflection reset of the universal connection structure.

[0056] Specifically, the accommodating cavity 220 includes a first portion for accommodating the ball head 120 and a second portion for accommodating the reset assembly 300. The first portion is connected to the second portion, and the reset assembly 300 is located in the second portion. Rotation of the ball head 120 can drive the reset member 310 to move along the extension direction of the first axis, thereby further compressing the elastic member 320. In the initial state, the first axis, the second axis, and the elastic force of the elastic member 320 are all in the same direction. In the deflected state, the rebound of the elastic member 320 can drive the reset member 310 to move toward the ball head 120, thereby driving the ball head 120 to rotate until the first axis and the second axis extend in the same direction.

[0057] It should be noted that when compressed, elastic member 320 exerts an elastic force against reset member 310, with the range of this elastic force being 30g to 150g, or 0.3N to 1.5N. Limiting the range of elastic force helps prevent rebound and reset difficulties caused by an excessively low elastic force, or difficulty rotating the connecting assembly 100 and the shaft cover assembly 200 due to an excessively high elastic force. The greater the angle between the first and second axes, the greater the degree of compression of elastic member 320, and thus the greater the elastic force exerted.

[0058] refer to Figures 2 to 4In some embodiments, along the extension direction of the first axis, a guide cavity 312 is provided on the side of the reset member 310 facing the elastic member 320. A portion of the elastic member 320 is located in the guide cavity 312 and abuts the reset member 310. A relief opening 313 is provided on the sidewall of the reset member 310 in a direction perpendicular to the first axis. The relief opening 313 is connected to the guide cavity 312. The guide cavity 312 is used to provide guidance for the compression or rebound of the elastic member 320, thereby preventing the elastic member 320 from deflecting. The relief opening 313 facilitates the clamping of a clamping tool during installation. The clamping tool can extend into the guide cavity 312 through the relief opening 313, simultaneously clamping the reset member 310 and the elastic member 320, maintaining the relative positions of the reset member 310 and the elastic member 320, and facilitating the assembly of the reset assembly 300.

[0059] refer to Figures 2 to 4 In some embodiments, in the initial state, the side walls of the first opening 210 are distributed around the outer peripheral wall of the shaft body 110, and there is a gap between the side walls of the first opening 210 and the outer peripheral wall of the shaft body 110. The angle between the side walls of the first opening 210 and the outer peripheral wall of the shaft body 110 is 0° to 30°. By limiting the deflection angle range of the first axis and the second axis, it is used to avoid a small deflection angle adjustment range that is difficult to meet the needs of different users, and to avoid excessive squeezing of the reset component 300 due to an excessively large deflection angle.

[0060] Specifically, the angle between the side wall of the first opening 210 and the outer peripheral wall of the shaft body 110 is a, and the value range of a is 0° to 30° (refer to Figure 6 ), along the extension direction of the first axis, the diameter of the first opening 210 gradually increases from the accommodating cavity 220 outward, so that the sidewall of the first opening 210 is inclined relative to the first axis, and the maximum aperture of the first opening 210 is smaller than the diameter of the ball head 120, thereby preventing the ball head 120 from escaping from the accommodating cavity 220. The outer peripheral wall of the shaft body 110 is parallel to the second axis.

[0061] It should be noted that the angle between the side wall of the first opening 210 and the outer peripheral wall of the shaft body 110 can also be any value in any range of 0° to 10°, 10° to 18.78°, 18.78° to 20°, 20° to 30°, and so on. For example, the above-mentioned angle can be any value among 0°, 10°, 18.78°, 20° and 30°, which is convenient for selecting a suitable angle according to different user groups, avoiding an angle that is too small and difficult to match the user's ear, and avoiding an angle that is too large and leads to poor wearing stability.

[0062] refer to Figures 2 to 4, in some embodiments, the shaft cover assembly 200 includes a first cover body 230 and a second cover body 240. The first cover body 230 and the second cover body 240 are detachably connected. The first cover body 230 and the second cover body 240 jointly define a receiving cavity 220. The detachable connection between the first cover body 230 and the second cover body 240 facilitates the production and manufacturing of the shaft cover assembly 200. The ball head 120 is located in the receiving cavity 220, making disassembly, installation, and maintenance more convenient.

[0063] In addition, the reset assembly 300 can also be placed in the receiving cavity 220, making the universal connection structure more compact. The arrangement of the first cover body 230 and the second cover body 240 also facilitates the disassembly, installation, and maintenance of the reset assembly 300. The part of the receiving cavity 220 for accommodating the reset assembly 300 can be arranged to extend along the first axis. This part is used to guide the movement of the reset assembly 300 and prevent the reset assembly 300 from deflecting.

[0064] Reference Figures 2 to 4 , in some embodiments, the reset assembly 300 is located in the receiving cavity 220. Along a direction perpendicular to the first axis, a limiting groove 314 is provided on the side wall of the reset assembly 300. And at least one of the first cover body 230 and the second cover body 240 is provided with a limiting protrusion 250. Part of the limiting protrusion 250 is placed in the limiting groove 314, which is used to limit the rotation of the reset member 310 around the first axis relative to the shaft cover assembly 200, ensuring the stability of the elastic abutment of the reset assembly 300 against the ball head 120. And, it limits the upper limits of the compression and rebound of the reset assembly 300 along the first axis, preventing the reset assembly 300 from being over-compressed and damaged, or preventing the force applied to the surface of the ball head 120 due to excessive rebound of the reset assembly 300 from being too large, resulting in difficult rotation of the ball head 120.

[0065] Specifically, referring to Figures 2 to 7 , the reset assembly 300 includes an elastic member 320 and a reset member 310. The reset member 310 is provided with a limiting groove 314. The groove wall of the limiting groove 314 includes a first limiting wall 3141 and a second limiting wall 3142. There is an included angle between the first limiting wall 3141 and the second limiting wall 3142. The limiting protrusion 250 includes a first protrusion wall 251 and a second protrusion wall 252. The first protrusion wall 251 abuts against the first limiting wall 3141, and the second protrusion wall 252 abuts against the second limiting wall 3142. The detachable connection between the first cover body 230 and the second cover body 240 enables, when installing the reset assembly 300, the reset assembly 300 to be first connected to one of the first cover body 230 or the second cover body 240, and then the first cover body 230 and the second cover body 240 to be connected, facilitating the assembly of the reset assembly 300.

[0066] The first raised wall 251 is arranged parallel to the installation direction of the reset component 300, and the second raised wall 252 is arranged perpendicular to the installation direction of the reset component 300. The cooperation between the first raised wall 251 and the first limiting wall 3141, and the cooperation between the second raised wall 252 and the second limiting wall 3142 enable the reset member 310 to have a definite installation position, facilitating the assembly between the reset component 300 and the shaft cover component 200.

[0067] Reference Figures 1 to 5 , in some embodiments, along a direction having an angle with the first axis, the shaft cover component 200 is further provided with a second opening 260. The second opening 260 communicates with the accommodating cavity 220. The ball head 120 is convexly provided with an anti-rotation protrusion 140, and the anti-rotation protrusion 140 extends into the second opening 260 for restricting the rotation angle of the connection component 100 relative to the shaft cover component 200 around the first axis.

[0068] For example, the opening direction of the second opening 260 is perpendicular to the extension direction of the first axis, such that the anti-rotation protrusion 140 extends in a direction perpendicular to the first axis, which is beneficial to shortening the extension length of the anti-rotation protrusion 140 and making the volume of the universal connection structure smaller.

[0069] Specifically, the connection component 100 is connected to the earhook 500, and the shaft cover component 200 is connected to the ear shell 400. The connection component 100 rotates relative to the shaft cover component 200 around the first axis, capable of adjusting the angle between the earhook 500 and the ear shell 400. As the connection component 100 rotates relative to the shaft cover component 200 around the first axis, the anti-rotation protrusion 140 can respectively abut against the opposite side walls of the second opening 260 to define the rotation range of the connection component 100 relative to the shaft cover component 200 around the first axis. Taking the anti-rotation protrusion 140 being located at the middle position of the second opening 260 as the reference position, the rotation range of the connection component 100 relative to the shaft cover component 200 around the first axis can be -45° to 45°, which can better meet the applicability of the universal connection structure to different users and make the headphone wearing more comfortable and stable.

[0070] It should be noted that in the initial state and the deflected state, the connection component 100 can rotate relative to the shaft cover component 200 around the first axis. The above rotation does not change the current state of the universal connection structure, and this rotation is different from the deflection between the first axis and the second axis. During the rotation process, the extension directions of the first axis and the second axis remain unchanged. The rotation range of the connection component 100 relative to the shaft cover component 200 around the first axis can be -30° to 30°, -20° to 20°, and -10° to 10°. For example, it can be any value among -30°, -20°, -10°, 10°, 20°, and 30° to more precisely adapt to different user groups. The above plus and minus represent different deflection directions.

[0071] In addition, taking the plane where most of the earhooks 500 are located as the first plane and the plane where most of the ear shells 400 are located as the second plane, the connecting component 100 rotates relative to the shaft cover component 200 around the first axis for adjusting the included angle between the first plane and the second plane. When the earphone is placed in the charging bin, the included angle range between the first plane and the second plane can be between -5° and 5°, which is convenient for matching with the groove in the charging bin to achieve more stable placement.

[0072] Reference Figures 2 to 5 , in some embodiments, the shaft body 110 is provided with a wire routing cavity 111, the ball head 120 is provided with a wire routing opening 121, the wire routing cavity 111 is communicated with the wire routing opening 121, and the shaft cover component 200 is provided with a second opening 260 which is communicated with the wire routing opening 121. Further, the wire can enter the wire routing cavity 111 through the second opening 260 and the wire routing opening 121. The wire routing cavity 111 is used for the wire to pass through, avoiding the exposure of the wire, facilitating the protection of the wire, and being beneficial to extending the service life of the wire.

[0073] Specifically, the reset component 300, the ball head 120 and the shaft body 110 are arranged along the extending direction of the first axis. The ball head 120 is located in the accommodating cavity 220 to ensure the universal rotation connection between the shaft cover component 200 and the shaft body 110. Along the direction perpendicular to the first axis, a wire routing opening 121 communicated with the wire routing cavity 111 is provided on the side wall of the ball head 120, and the shaft cover component 200 is provided with a second opening 260 corresponding to the position of the wire routing opening 121, and the second opening 260 is communicated with the wire routing opening 121. The wire enters the wire routing cavity 111 through the second opening 260 and the wire routing opening 121 for wire storage and protection. One end of the universal connection structure can be connected to the audio part of the earphone, and the other end of the universal connection structure can be connected to the battery part of the earphone. The wire in the wire routing cavity 111 conducts the audio part and the battery part. The storage of the wire in the wire routing cavity 111 is beneficial to making the earphone more tidy and beautiful.

[0074] It should be noted that both the wire routing opening 121 and the second opening 260 extend along the direction perpendicular to the first axis, and the cross-sectional area of the second opening 260 is larger than that of the wire routing opening 121, which is used to ensure that the wire routing opening 121 and the second opening 260 are always communicated when the ball head 120 rotates relative to the shaft cover component 200, avoiding damage to the wire.

[0075] Reference Figures 1 to 5 , in some embodiments, the ball head 120 is provided with a rotation stopping protrusion 140 which extends from the outer peripheral edge of the wire routing opening 121 into the second opening 260 for avoiding the wire routing opening 121. Further, the second opening 260 can not only allow the wire to pass through, but also cooperate with the rotation stopping protrusion 140 to limit the rotation angle range between the connecting component 100 and the shaft cover component 200, which is beneficial to making the universal connection structure more compact and better meeting the lightweight design requirements of the earphone.

[0076] It should be noted that there is an included angle between the opening direction of the second opening 260 and the extending direction of the first axis.

[0077] Reference Figures 1 to 7 , the earphone according to the embodiment of the present application includes an ear shell 400, an ear hook 500 and the universal connection structure in any of the above embodiments. The ear shell 400 is connected to the shaft cover assembly 200, the ear hook 500 is connected to the shaft body 110, and the shaft body 110 is connected to the shaft cover assembly 200 in a universal rotational manner, realizing the universal rotation between the ear shell 400 and the ear hook 500. When the user wears the earphone, the ear shell 400 and the ear hook 500 can rotate around the first axis or the second axis, and / or realize the deflection of the first axis and the second axis, which is beneficial for the user to wear the earphone more comfortably and stably. When the user takes off the earphone, the universal connection structure drives the ear hook 500 to rotate relative to the ear shell 400, and the ear hook 500 returns to the initial position, saving the time for the user to manually adjust and reset, and facilitating the user to store the earphone.

[0078] Specifically, the ear shell 400 is provided with an audio module. One end of the ear hook 500 is connected to the ear shell 400 through a universal connection structure, and the other end of the ear hook 500 is connected with a power supply module, realizing the separation of the audio module and the power supply module, reducing the influence of electromagnetic interference generated by the power supply of the power supply module on the audio module, and being beneficial to improving the sound quality of the earphone.

[0079] The above has described the embodiments of the present application in detail with reference to the drawings. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present application. In addition, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

Claims

1. A universal connection structure, characterized in that, include: A connecting assembly, comprising a shaft and a ball head, wherein the shaft is connected to the ball head; A shaft cover assembly is provided with a first opening and a receiving cavity partially adapted for the ball head, wherein the first opening extends along a first axis and communicates with the receiving cavity, the ball head is located in the receiving cavity, and the shaft body extends from the location of the ball head along a second axis to the outside of the receiving cavity; a reset assembly, wherein at least a portion of the reset assembly is located on a side of the ball head facing away from the shaft body along an extension direction of the first axis, and the reset assembly elastically abuts against the side of the ball head facing away from the shaft body; In which, the universal connection structure has an initial state and a deflected state. In the initial state, the first axis and the second axis extend in the same direction, and the reset assembly is in a first elastic compression state. In the deflected state, there is an angle between the first axis and the second axis. Along the extension direction of the first axis, the reset assembly is further compressed by the ball head to a second elastic compression state.

2. The universal connection structure according to claim 1, characterized in that, Along the extension direction of the first axis, one of the ball head and the reset assembly is provided with a reset groove, and the other is provided with a reset protrusion. The reset protrusion is located in the reset groove. The reset groove includes a bottom wall, a guide wall and an opening. The guide wall extends from the bottom wall to the opening.

3. The universal connection structure according to claim 1, characterized in that, The reset assembly includes a reset member and an elastic member. Along the extension direction of the first axis, the reset member abuts the ball head. One end of the elastic member elastically abuts the side of the reset member away from the ball head, and the other end of the elastic member abuts the shaft cover assembly.

4. The universal joint structure according to claim 3, characterized in that A guide cavity is provided on the side of the reset member facing the elastic member, part of the elastic member is located in the guide cavity and abuts the reset member, and a side wall of the reset member is provided with an avoidance opening along a direction perpendicular to the first axis, and the avoidance opening is communicated with the guide cavity.

5. The universal connection structure according to claim 1, characterized in that, In the initial state, the side wall of the first opening is distributed around the outer peripheral wall of the shaft body, and there is a gap between the side wall of the first opening and the outer peripheral wall of the shaft body, and the angle between the side wall of the first opening and the outer peripheral wall of the shaft body is 0° to 30°.

6. The universal joint structure according to claim 1, characterized in that, The shaft cover assembly includes a first cover body and a second cover body, the first cover body and the second cover body are detachably connected, the first cover body and the second cover body jointly define an accommodating cavity, the reset assembly is located in the accommodating cavity, and a limiting groove is provided on the side wall of the reset assembly along a direction perpendicular to the first axis, and at least one of the first cover body and the second cover body is provided with a limiting protrusion, the limiting protrusion protrudes outward from the cavity wall of the accommodating cavity, and part of the limiting protrusion is placed in the limiting groove.

7. The universal connection structure according to claim 1, characterized in that, The shaft cover assembly is further provided with a second opening along a direction having an angle with the first axis, the second opening is communicated with the accommodating cavity, the ball head is convexly provided with a rotation-stopping protrusion, and the rotation-stopping protrusion extends into the second opening.

8. The universal joint structure according to claim 1, characterized in that The shaft body is provided with a wiring cavity, the ball head is provided with a wiring opening, the wiring opening is communicated with the wiring cavity, the shaft cover assembly is provided with a second opening, and the second opening is communicated with the wiring opening.

9. The universal joint structure according to claim 8, wherein, The ball head is convexly provided with an anti-rotation projection, the anti-rotation projection extends from the outer peripheral edge of the wire routing opening into the second opening, and there is an included angle between the opening direction of the second opening and the extending direction of the first axis.

10. A headset, characterized in that, Comprising: Ear shell: Ear hook: The universal connection structure according to any one of claims 1 to 9, wherein the ear shell is connected to the shaft cover assembly, and the ear hook is connected to the shaft body.

Images