A headset

Abstract

This specification discloses a pair of headphones. The headphones include a wearing assembly and a movement module, wherein the movement module is disposed at an end of the wearing assembly and the wearing assembly is used to secure the movement module to the user's head. The movement module includes a movement housing, a movement, and a cover plate. One end of the movement housing is open, and the cover plate is disposed over the open end of the movement housing to form a cavity structure within the movement housing for accommodating at least the movement.

Description

[0001] Cross-references

[0002] This application claims priority to Chinese applications No. 202020720108.9, No. 202020719524.7, and No. 202020719543.X, filed on April 30, 2020, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of acoustic technology, and more particularly, to an earphone structure. Background Art

[0004] Headphones, such as open-back headphones and in-ear headphones, are portable acoustic output devices that conduct sound within a specific range. In practical applications, good structural stability is required between headphone components (for example, between the headphone movement, battery, main control circuit board, and other components and the housing) to ensure high-quality headphones.

[0005] Therefore, it is hoped to provide an earphone structure with better stability. Summary of the Invention

[0006] An embodiment of the present application provides an earphone, which includes a wearing component and a movement module, wherein the movement module is arranged at the end of the wearing component, and the wearing component is used to fix the movement module on the user's head; wherein, the movement module includes a movement housing, a movement, and a cover plate, one end of the movement housing is open, and the cover plate is arranged on the open end of the movement housing so that a cavity structure for accommodating at least the movement is formed inside the movement housing.

[0007] In some embodiments, the earphone includes a first microphone and a second microphone, wherein the first microphone is accommodated in the core housing, and the second microphone is arranged outside the core housing.

[0008] In some embodiments, the movement module also includes a movement bracket, the movement is arranged on the movement bracket, and the movement bracket and the movement are accommodated in a cavity structure inside the movement shell; the cover plate is provided with a pressing structure on the side facing the cavity structure, and the pressing structure is used to press and fix the movement bracket in the movement shell.

[0009] In some embodiments, the movement module also includes a movement bracket, which includes an annular bracket body and a limiting structure arranged on the bracket body, and the movement is hung on the bracket body; the limiting structure interferes with the movement shell so that the movement bracket remains relatively fixed with the movement shell along the circumference of the bracket body. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present application will be further described in the form of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting, and in these embodiments, like numbers represent like structures, wherein:

[0011] Figure 1 is a schematic diagram of an exemplary structure of headphones provided according to some embodiments of the present application;

[0012] Figure 2 is a schematic diagram of an exemplary exploded structure of headphones provided according to some embodiments of the present application;

[0013] Figure 3 is a schematic diagram of an exemplary exploded structure of headphones provided according to other embodiments of the present application;

[0014] Figure 4 is a schematic diagram of an exemplary structure of an earhook housing of an earphone provided according to some embodiments of the present application;

[0015] Figure 5 is a schematic diagram of an exemplary structure of an earhook housing of an earphone provided according to other embodiments of the present application;

[0016] Figure 6 is a schematic structural diagram of a decorative bracket for headphones provided according to some embodiments of the present application;

[0017] Figure 7 is a schematic structural diagram of a decorative bracket for headphones provided according to other embodiments of the present application;

[0018] Figure 8 is a schematic diagram of the exploded structure of headphones provided according to other embodiments of the present application;

[0019] Figure 9 is a schematic diagram of a frequency response curve of headphones provided according to some embodiments of the present application;

[0020] Figure 10 is a schematic cross-sectional structural diagram of a core housing in an earphone provided according to some embodiments of the present application;

[0021] Figure 11 is a schematic top view of a reinforcement structure in an earphone provided according to some embodiments of the present application;

[0022] Figure 12 is a schematic diagram of frequency response curves corresponding to various reinforcement structures provided in some embodiments of the present application;

[0023] Figure 13 is a schematic cross-sectional structural diagram of a core module of an earphone provided according to other embodiments of the present application;

[0024] Figure 14 is a schematic structural diagram of a core bracket of an earphone provided according to other embodiments of the present application;

[0025] Figure 15 is a schematic top view of the structure of a core module of an earphone provided according to other embodiments of the present application;

[0026] Figure 16 is a schematic diagram of the exploded structure of headphones provided according to other embodiments of the present application;

[0027] Figure 17 is a module diagram of a signal processing system provided according to some other embodiments of the present application;

[0028] Figure 18 is a schematic cross-sectional structural diagram of a core module of an earphone provided according to other embodiments of the present application;

[0029] Figure 19 is a schematic diagram of the structure of a cover plate of an earphone provided according to some embodiments of the present application;

[0030] Figure 20 Schematic diagram of the cover of an earphone according to other embodiments of the present application;

[0031] Figure 21 is a schematic diagram of the exploded structure of a core module of an earphone provided according to other embodiments of the present application;

[0032] Figure 22 Schematic diagram of the cover of an earphone according to other embodiments of the present application;

[0033] Figure 23 is a schematic diagram of the principle of the movement of the earphones provided according to some embodiments of the present application;

[0034] Figure 24 Schematic diagram of the relationship between the magnet and the force coefficient BL in headphones provided in some embodiments of the present application;

[0035] Figure 25 Schematic diagram of the relationship between the thickness of the magnetic shield and the magnetic plate and the force coefficient BL in headphones provided in some embodiments of the present application;

[0036] Figure 26 Schematic diagram of the relationship between the height of the magnetic shield and the force coefficient BL in headphones provided in some embodiments of the present application;

[0037] Figure 27 is a schematic diagram of the magnetic pole direction of the magnet of the earphone provided according to some embodiments of the present application; and

[0038] Figure 28 This is a schematic cross-sectional structural diagram of a rear hanging component of an earphone provided according to some embodiments of the present application. DETAILED DESCRIPTION

[0039] To more clearly illustrate the technical solutions of the embodiments of this application, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are merely examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without inventive effort. Unless otherwise apparent from the context or otherwise noted, the same reference numerals in the figures represent the same structure or operation.

[0040] It should be understood that the terms "system," "device," "unit," and / or "module" used herein are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0041] As used in this application and the claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not intended to refer to the singular but may include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0042] The earphones described in the embodiments of this specification may refer to portable acoustic output devices that achieve sound conduction within a certain range. In some embodiments, the earphones may include bone conduction earphones and / or air conduction earphones. In some embodiments, the earphones may include in-ear earphones, headphones, open earphones, etc. In some embodiments, the earphones can be worn on the user's head or other parts (for example, neck, shoulder, etc.) through a fixed structure (for example, an ear hook) or other structures. In some embodiments, the earphones can also be combined with other wearable devices (for example, smart helmets, glasses, etc.) to be worn on the user's head or other parts.

[0043] In some embodiments, when the earphones are bone conduction earphones, they can be placed close to the user's ears without blocking them, allowing the user to clearly hear the sound played by the earphones while also better perceiving external sound information. Bone conduction earphones convert audio into mechanical vibrations of varying frequencies, using human bones as a medium for transmitting these mechanical vibrations, which in turn transmit the sound waves to the auditory nerve. This allows the user to receive sound without having to pass through the external auditory canal and eardrum.

[0044] In some embodiments, when the earphone is an open-type air conduction earphone, it can also be close to but not block the user's ear. The open-type air conduction earphone can form a sound field with a certain directionality in space through a special design (for example, forming a pair of dipoles of equal size and opposite directions). For example, the open-type air conduction earphone can have a diaphragm. The vibration of the diaphragm can produce sounds within the audible range of the human ear. The front and rear sides of the diaphragm can simultaneously produce a group of sounds with opposite phases. This group of sounds with opposite phases can be transmitted to the outside world through sound outlets that are acoustically connected to the front and rear sides of the diaphragm, respectively. One or more sound outlets can be located in a position close to the user's ear of the open-type air conduction earphone, for example, on the peripheral wall, bottom wall or earphone fixing part of the movement housing described below. For example, the sound holes corresponding to the front and rear sides of the diaphragm can be located on the same or different peripheral walls of the movement shell at the same time, or the sound holes corresponding to the front side of the diaphragm can be located on the peripheral wall of the movement shell, and the sound holes corresponding to the rear side of the diaphragm can be located on the earphone fixing part, or the sound holes corresponding to the front and rear sides of the diaphragm can be located on the earphone fixing part of the movement shell at the same time.

[0045] In some embodiments, the aforementioned earphones can be hung on the user's left or right ear using a unilateral earhook structure. In this case, the earphone corresponding to the shape of the user's left ear can be hung on the position of the user's left auricle with an independent left earhook structure, and the earphone corresponding to the shape of the user's right ear can be hung on the position of the user's right auricle with an independent right earhook structure. Since there is no physical connection between the left ear support structure and the right ear support structure, the user can choose to wear the earphones on the left or right ear separately, or wear the earphones on the left and right ears at the same time.

[0046] In some embodiments, the aforementioned earphones can adopt a bilateral earhook structure, hanging on both ears of the user at the same time. In this case, the earhook structure corresponding to the user's left ear and the earhook structure corresponding to the right ear can be fixedly connected by a physical structure (for example, a rear hanger). The specific exemplary structure of the earphones in the embodiments of the present application can be referred to below and will not be described in detail here.

[0047] The following is a detailed description of the headphones provided by some embodiments of the present application in conjunction with the accompanying drawings. It should be noted that, in the absence of any conflict, the structure described in the embodiments of this specification can be applied to both bone conduction headphones and air conduction headphones.

[0048] In some embodiments, the headphones described in this specification may refer to bone conduction headphones. Bone conduction headphones can use bone conduction technology to transmit sound waves to the auditory nerve through tissues such as the skin and bones without passing through the external auditory canal and eardrum, thereby "liberating" the user's ears and eliminating many steps in sound wave transmission. In some embodiments, bone conduction headphones may include a wearing component and a movement module, wherein the movement module can be used to convert electrical signals into mechanical vibrations and transmit the vibrations to the user's auditory nerve through a bone conduction process, and the wearing component can be used to fix the movement module on the user's head so that the movement module is in contact with the user's head, thereby achieving sound transmission based on bone conduction technology.

[0049] In some embodiments, the earphones described herein may also refer to air conduction earphones. When the earphones are air conduction earphones, they may have multiple sound outlets, through which the sound produced by them can be transmitted to the outside world. In some embodiments, the sounds emitted from different sound outlets may have different phases (e.g., opposite or nearly opposite phases). These sounds with different phases interfere with each other at a specific spatial location, thereby reducing sound leakage from the earphones at that specific spatial location.

[0050] It should be noted that when the headset is an air conduction headset, except for the sound transmission method that is different from the bone conduction headset, the rest of the structure can be designed with reference to the bone conduction headset. For example, in some embodiments, when the headset is an air conduction headset, it can also include a wearing component and a movement module, wherein the movement module can be used to convert electrical signals into mechanical vibrations, and transmit the vibrations to the user's eardrum through the air conduction process, thereby stimulating the user's auditory nerve; the wearing component can be used to fix the movement module near the user's ear, so that the movement module generates a sound field near the user's ear, thereby realizing sound transmission based on air conduction technology.

[0051] In some embodiments, the headset may include one or two movement modules. When the headset includes only one movement module, the wearing component may be a unilateral wear type (e.g., a unilateral ear hook type). Specifically, the user can fix the movement module near one side of the user's ear through the ear hook component. When the headset is a bone conduction headset, the movement module can also be in contact with the user's skin. When the headset includes two movement modules, the wearing component may be a head-mounted type or a bilateral ear-hook type. Specifically, the user can fix the two movement modules near the left and right ears of the user respectively through the head-mounted component or the bilateral ear hook component. Similarly, when the headset is a bone conduction headset, the two movement modules can also be in contact with the skin on the left and right sides of the user's head respectively.

[0052] In some embodiments, the aforementioned earphones can be combined with a wearable device. For example, the earphones can be placed on glasses, AR, VR, and other devices, and the movement module can be fixed on the user's head. It should be noted that when the earphones are combined with the aforementioned wearable device, the aforementioned wearing component can refer to the wearing structure of the wearable device.

[0053] Figure 1 This is a schematic diagram of an exemplary structure of headphones provided according to some embodiments of the present application.

[0054] Reference Figure 1 In some embodiments, the earphone 10 may include two movement modules 20, two ear hook components 30 (equivalent to the above-mentioned wearing components), and a back hanging component 40. One end of the two ear hook components 30 is respectively connected to the corresponding movement module 20, and the two ends of the back hanging component 40 are respectively connected to the other end of the two ear hook components 30 away from the movement module 20. In some embodiments, the two ear hook components 30 can be used to be hung on the outside of the user's two ears, and the back hanging component 40 can be used to be wrapped around the back of the user's head to facilitate the user's wearing of the earphone 10. With this arrangement, when the earphone 10 is in the wearing state, the two movement modules 20 can be located on the left and right sides of the user's head respectively; and under the cooperation of the two ear hook components 30 and the back hanging component 40, the two movement modules 20 can clamp the user's head and contact the user's skin or be fixed near the user's ears, thereby enabling sound transmission based on bone conduction or air conduction technology.

[0055] Figure 2 and Figure 3 This is a schematic diagram of an exemplary decomposition structure of headphones provided according to some embodiments of the present application.

[0056] Reference Figure 2 and Figure 3, the earphones may further include a main control circuit board 50 and a battery 60. In some embodiments, the main control circuit board 50 and the battery 60 may be arranged in the same ear hook assembly 30, or may be respectively arranged in two ear hook assemblies 30. The specific structure will be described in detail later. Both the main control circuit board 50 and the battery 60 may be connected to the two movement modules 20 through conductors (such as wires). The former may be used to control the sound of the movement module 20 (for example, electrical signals may be converted into mechanical vibrations), and the latter may be used to provide electrical energy to the earphones 10 (for example, two movement modules 20). Of course, the earphones 10 described in this specification may also include microphones such as microphones and pickups, as well as communication elements such as Bluetooth, which may also be connected to the main control circuit board 50 and the battery 60 through wires to achieve corresponding functions.

[0057] It should be noted that: Figure 2 The accommodating chamber 313 is mainly used to accommodate the main control circuit board 50. Figure 3 The storage compartment 313 shown can be mainly used to accommodate the battery 60. Figure 2 The ear hook assembly 30 shown corresponds to the left ear hook of the headset 10. Figure 3 The ear hook assembly 30 shown may correspond to the right ear hook of the headset 10; Figure 2 The ear hook assembly 30 shown corresponds to the right ear hook of the headset 10. Figure 3 The ear hook assembly 30 shown can correspond to the left ear hook of the headset 10. In other words, the main control circuit board 50 and the battery 60 can be respectively arranged in the two ear hook assemblies 30. Such an arrangement can not only increase the capacity of the battery 60 to improve the battery life of the headset 10; it can also balance the weight of the headset 10 to improve the wearing comfort of the headset 10. At this time, the main control circuit board 50 and the battery 60 can be connected via a wire built into the rear hanging assembly 40, and the specific structure will be described in detail later. In some embodiments, when the headset 10 is a single-sided ear hook type, the main control circuit board 50 and the battery 60 can adaptively reduce their volume so as to be accommodated in the same storage compartment.

[0058] It should also be noted that: in some embodiments of the present specification, there are two movement modules 20, and both movement modules 20 can make sounds and achieve stereo sound effects, thereby improving the user favorability of the headset 10. Therefore, in other application scenarios where the requirements for stereo sound are not particularly high, such as hearing aids for hearing-impaired patients, live broadcast prompts by hosts, etc., the headset 10 may also be provided with only one movement module 20. In some embodiments, the two movement modules 20 included in the headset 10 may have the same or different structures. In some embodiments, for the above-mentioned conductor, it can be a wire, which is mainly used to achieve electrical connection between the various electronic components of the headset 10; if there are multiple circuits that need to be electrically connected, the conductor can be set to multiple strands accordingly, and the above-mentioned conductor can be simply understood as a multi-strand wire.

[0059] like Figure 2 As shown, in some embodiments, the earhook assembly 30 may include an earhook shell 31 and a decorative part 32, and the two may be connected by one or a combination of assembly methods such as gluing, snap-on, and threaded connection. When the earphone 10 is in the wearing state, the decorative part 32 may be located on the side of the earhook shell 31 away from the movement module 20, that is, located on the outside of the earphone 10, so that the decorative part 32 can decorate the earhook shell 31, thereby increasing the aesthetic appearance of the earphone 10. In some embodiments, the decorative part 32 may protrude relative to the earhook shell 31, or may be embedded in the earhook shell 31. In some embodiments, the decorative part 32 may include stickers, plastic parts, metal parts, or the like, or any combination thereof. In some embodiments, the decorative part 32 may be printed with geometric patterns, cartoon patterns, logo patterns, etc., or may be coated with fluorescent materials, reflective materials, etc., to achieve corresponding decorative effects.

[0060] like Figure 2 and Figure 3 As shown, the ear hook shell 31 may include an earphone fixing portion 311, a bent transition portion 312 and a storage compartment 313 connected in sequence. The earphone fixing portion 311 is used to fix the movement module 20, and the cooperation relationship between the two will be described in detail later. The bent transition portion 312 connects the storage compartment 313 and the earphone fixing portion 311, and is arranged in a bent shape to be hung on the outside of the human ear. Furthermore, the end of the storage compartment 313 away from the earphone fixing portion 311 can be connected to the rear hanging component 40 by one or a combination of assembly methods such as gluing, snap connection, and threaded connection, so as to facilitate the assembly between the ear hook component 30 and the rear hanging component 40. One end of the storage compartment 313 is open so as to be used to load the main control circuit board 50 or the battery 60. The ear hook shell 31 may also include a compartment cover 314, which can be covered on the open end of the storage compartment 313.

[0061] like Figure 2As shown, in some embodiments, the ear hook assembly 30 may further include a control key 33 and an interface 34 (for example, TYPE-C, USB, lighting, etc.). When the main control circuit board 50 is accommodated in the accommodating compartment 313, the control key 33 and the interface 34 may be arranged on the accommodating compartment 313 so that both are connected to the main control circuit board 50, thereby shortening the wiring distance. In some embodiments, the control key 33 and the interface 34 may be partially exposed outside the ear hook shell 31 to facilitate the user to perform corresponding operations. In this way, the control key 33 can be used to realize functions such as turning the earphones 10 on and off, adjusting the volume, switching tracks, waking up the voice assistant, etc., and the interface 34 can be used to realize functions such as data transmission and charging. In some embodiments, the ear hook assembly 30 may further include an indicator light 35, wherein the indicator light 35 can be arranged on the accommodating compartment 313 so as to be connected to the main control circuit board 50, thereby shortening the wiring distance. At this time, the indicator light 35 can be partially exposed outside the ear hook shell 31. In some embodiments, the ear hook assembly 30 can also include an LED light source hidden in the ear hook shell 31 and a light guide ( Figure 2 and Figure 3 (not shown in the figure). With this arrangement, the indicator light 35 can provide prompts in situations such as when the headset 10 is charging or low on power. In some embodiments, the indicator light 35 can flash at a preset frequency, thereby conveying preset information corresponding to the flashing frequency to the user as an output device. In some embodiments, the control key 33 can be replaced with other forms of control interfaces. For example, a sensing device (e.g., a pressure sensor) can be installed on the side wall of the headset fixing portion 311 or the movement housing, and the user can send instructions to the main control circuit board 50 by touching, clicking, or sliding on the surface. Exemplary instructions may include playing / pausing music, skipping the currently playing track, adjusting (turning the volume up or down), answering / rejecting calls, or the like, or any combination thereof.

[0062] It should be noted that when the earphone 10 is in the wearing state, the earphone 10 can be hung on the outside of the human ear. For example, the movement module 20 can be located on the front side of the human ear, and the main control circuit board 50 or the battery 60 can be located on the back side of the human ear. At this time, the human ear acts as a fulcrum to support the earphone 10, causing the human ear to bear most of the weight of the earphone 10. After the user wears the earphone 10 for a long time, it may cause discomfort. To this end, in some embodiments, the ear hook shell 31 (especially the bent transition portion 312) can be made of a softer material to improve the wearing comfort of the earphone 10. In some embodiments, the material of the ear hook shell 31 may include polycarbonate (PC), polyamides (PA), acrylonitrile butadiene styrene (ABS), polystyrene (PS), high impact polystyrene (HIPS), polypropylene (PP), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyurethanes (PU), polyethylene (PE), phenolic resin (PF), urea-formaldehyde resin (UF), melamine-formaldehyde resin (MF), silicone, or the like, or any combination thereof. In some embodiments, due to the relatively soft texture of the ear hook shell 31, the ear hook shell 31 may have insufficient rigidity and difficulty maintaining its structure under external force, or even a risk of breaking due to insufficient strength. To this end, in some embodiments, the ear hook housing 31 may have an elastic metal wire (at least in the bending transition portion 312) built in. Figure 2 and Figure 3 (not shown) to improve the strength of the ear hook shell 31, thereby increasing the reliability of the ear hook shell 31. The material of the elastic metal wire may include spring steel, titanium alloy, titanium-nickel alloy, chromium-molybdenum steel, or the like, or any combination thereof. In this case, the ear hook shell 31 can be a metal insert injection-molded integrally molded structural component.

[0063] Based on the above description, since the movement module 20 is arranged at one end of the ear hook assembly 30 (for example, the end where the earphone fixing portion 311 is located), and the main control circuit board 50 or the battery 60 is arranged at the other end of the ear hook assembly 30 (for example, the other end where the storage compartment 313 is located), when the movement module 20 is connected to the main control circuit board 50 and the battery 60 through a wire, the wire must at least pass through the area where the bending transition portion 312 is located. In some embodiments, for the aesthetic appearance of the earphone 10, the wire will not be exposed outside the ear hook shell 31, but will be passed through the ear hook shell 31, for example, by covering the wire with the bending transition portion 312. However, since the texture of the wire is generally softer, it will be more difficult to pass the wire through the ear hook shell 31. For this reason, if Figure 3 As shown, in some embodiments, the ear hook housing 31 may have a first groove 315 at least on the bent transition portion 312. The first groove 315 may be used for wiring to reduce the difficulty of threading the wires into the ear hook housing 31. The first groove 315 may be provided on a side of the ear hook housing 31 close to the decorative bracket 321. At this time, the decorative element 32 may be embedded in and fixed in the first groove 315 corresponding to the bent transition portion 312 to form a wiring channel ( Figure 2 and Figure 3 (not marked in the figure), thereby allowing the wires to extend from the movement module 20 through the wiring channel into the accommodating compartment 313, making it easier for the wires to connect the movement module 20 with the main control circuit board 50 and the battery 60. With this arrangement, when the wires are passed through the first groove 315 and are arranged in the earhook shell 31, the decorative member 32 can cover the wires, thereby preventing the wires from being exposed outside the earhook shell 31. At this time, the decorative member 32 can not only decorate the earhook shell 31, but also shield the wires, so that the decorative member 32 can achieve "two uses in one piece".

[0064] like Figure 2 and Figure 3 As shown, in some embodiments, the decorative element 32 may include a decorative bracket 321 and a decorative strip 322. The decorative bracket 321 has a curved shape corresponding to the curved transition portion 312. When the decorative bracket 321 is inserted into and fixed to the first groove 315 corresponding to the curved transition portion 312, the decorative bracket 321 cooperates with the first groove 315 on the curved transition portion 312 to form a wiring channel, allowing wires to extend from the movement module 20 through the wiring channel to the accommodating compartment 313. In some embodiments, the decorative strip 322 can be inserted into the first groove 315 and affixed to the decorative bracket 321. The decorative bracket 321 may be made of plastic and may be assembled to the earhook housing 31 by gluing and / or snapping. The decorative strip 322 may be a sticker and may be glued to the decorative bracket 321. With this arrangement, when a user wishes to change the decorative effect of the decorative element 32, they only need to replace the decorative strip 322 without having to remove the entire decorative element 32 from the earhook housing 31.

[0065] like Figure 3 As shown, in some embodiments, the earhook assembly 30 may further include a button 36, and the earhook housing 31 may further define a button-fitting hole 317. The button-fitting hole 317 accommodates a portion of the button 36. The hole's diameter and shape can be customized based on the shape and size of the button 36, allowing the button 36 to fit securely within the hole 317 and minimizing its protrusion relative to the earhook housing 31. A decorative bracket 321 is attached to one side of the earhook housing 31. The button 36 is located on the side of the earhook housing 31 facing away from the decorative bracket 321 and is exposed through the button-fitting hole 317. The decorative bracket 321 further extends in a cantilevered manner above the button 36 exposed through the button-fitting hole 317 and can be activated by external pressure. With this configuration, the button 36 can replace the control button 33, simplifying the structure of the earphone 10. Alternatively, it can coexist with the control button 33 and implement functions such as play / pause and AI wakeup, expanding the interactive capabilities of the earphone 10.

[0066] In some embodiments, the button adapter hole 317 can be provided in the headphone fixing portion 311, allowing the user to press the button 36 on the headphone fixing portion 311. In this case, the earhook assembly 30 can also include a seal 37, which is disposed between the button 36 and the headphone fixing portion 311. The seal 37 can be made of silicone, rubber, or other materials. This configuration can enhance the waterproof performance of the area on the headphone fixing portion 311 where the button 36 is located, while also improving the tactile feel of the button 36 when pressed.

[0067] In some embodiments, when the movement module 20 is arranged at one end of the ear hook assembly 30 (for example, the end where the earphone fixing portion 311 is located) and the battery 60 is arranged at the other end of the ear hook assembly 30 (for example, the other end where the accommodating compartment 313 is located), the wire must at least pass through the area where the bending transition portion 312 is located, so that the movement module 20 is connected to the battery 60 through the wire. Figure 3 As shown, the ear hook housing 31 is provided with a first groove 315 at least on one side of the earphone fixing portion 311 and the bent transition portion 312 near the decorative bracket 321. The first groove 315 can be used for wiring to reduce the difficulty of threading the wires into the ear hook housing 31. Furthermore, one end of the first groove 315 is connected to the button adapter hole 317, so that when the decorative bracket 321 is embedded in and fixed to the first groove 315, the decorative bracket 321 can also cover the button adapter hole 317, so that when the area where the button 36 is located (including at least a portion of the decorative bracket 321) is pressed, the decorative bracket 321 can trigger the button 36 installed in the button adapter hole 317.

[0068] In the above manner, the decorative piece 32 can not only decorate the ear hook shell 31 and shield the wires, but also shield and trigger the button 36, so that the decorative piece 32 can achieve "one piece, four uses".

[0069] Figure 4 and Figure 5 This is a schematic diagram of an exemplary structure of an earhook shell of an earphone provided according to some embodiments of the present application.

[0070] Reference Figure 4 In some embodiments, a recess 316 may be provided at the bottom of one end of the first groove 315. When the user presses the decorative strip 322 into the recess 316, the portion of the decorative strip 322 away from the recess 316 will lift out of the first groove 315, making it easier to replace the decorative strip 322. In some embodiments, the first groove 315 may further extend to the accommodating compartment 313, and the recess 316 may be provided on the accommodating compartment 313. The recess 316 is located outside the coverage area of ​​the decorative bracket 321 on the first groove 315, and the decorative strip 322 is fitted and fixed to the decorative bracket 321, covering the recess 316. In this case, the overall length of the decorative strip 322 may be greater than the overall length of the decorative bracket 321.

[0071] It should be noted that in some embodiments, the decorative bracket 321 and the decorative strip 322 can also be integrally molded. The decorative bracket 321 and the decorative strip 322 can be made of different materials and can be two-shot injection molded, allowing the decorative bracket 321 to provide support and the decorative strip 322 to provide decoration. In this case, the overall length of the decorative strip 322 can be greater than or equal to the overall length of the decorative bracket 321.

[0072] like Figure 4 and Figure 5 As shown, the first groove 315 may include a first sub-groove section 3151 located on the bent transition portion 312 and a second sub-groove section 3152 located on the earphone fixing portion 311. In some embodiments, the depth of the first sub-groove section 3151 may be greater than the depth of the second sub-groove section 3152. The first sub-groove section 3151 may be used to accommodate wires extending from the movement module 20. The wires extending from the movement module 20 may pass through the vicinity of the adjacent position of the first sub-groove section 3151 and the second sub-groove section 3152 and extend to the first sub-groove section 3151. The second sub-groove section 3152 and the first sub-groove section 3151 may be used together to accommodate the decorative bracket 321.

[0073] Continue to refer to Figure 4 and Figure 5In some embodiments, the first groove 315 may include a first sub-groove section 3151 located on the bent transition portion 312, a second sub-groove section 3152 located on the earphone fixing portion 311, and a third sub-groove section 3153 located on the accommodating compartment 313. The depth of the first sub-groove section 3151 may be greater than the depths of the second and third sub-groove sections 3152, 3153. The second and third sub-groove sections 3152, 3153 are primarily used to accommodate the decorative strip 322. While accommodating the decorative strip 322, the first sub-groove section 3151 can also accommodate wires connecting the movement module 20 and the accommodating compartment 313. In other words, in addition to being located within the first sub-groove section 3151, the decorative strip 322 can also extend further into the second and third sub-groove sections 3152, 3153. The recess 316 may be located in the third sub-groove section 3153. In some embodiments, the depth of the second sub-groove section 3152 can be equal to the depth of the third sub-groove section 3153, and after the decorative bracket 321 is embedded in and fixed in the first sub-groove section 3151, the side of the decorative bracket 321 facing away from the ear hook shell 31 can be roughly flush with the bottom of the second sub-groove section 3152 and the third sub-groove section 3153, so that the decorative strip 322 can be flatly attached to the earphone fixing part 311, the decorative bracket 321 and the accommodating compartment 313.

[0074] In some embodiments, the fitting strength between the decorative strip 322 and the decorative bracket 321 may be less than the fixing strength between the decorative bracket 321 and the bent transition portion 312. When the decorative strip 322 is glued to the decorative bracket 321, the fitting strength may refer to the bonding strength between the two. At this time, the magnitude of the fitting strength may mainly depend on the roughness of the surface where the decorative bracket 321 and the decorative strip 322 are bonded, and / or the amount (and / or viscosity) of the colloid between the decorative strip 322 and the decorative bracket 321. In some embodiments, when the decorative bracket 321 is clamped to the bent transition portion 312, the fixing strength may refer to the clamping strength between the two. At this time, the fixing strength may mainly depend on the fitting clearance between the decorative bracket 321 and the bent transition portion 312, and / or the depth of the clamping between the two. In this way, when the decorative bracket 321 and the ear hook shell 31 are mainly assembled in a snap-on manner, the two ends of the decorative strip 322 can be glued to the accommodating compartment 313 and the earphone fixing part 311 respectively, which can further fix the decorative bracket 321. When the decorative strip 322 is replaced to change the decorative effect of the decorative part 32, the decorative bracket 321 will not be lifted up due to the excessive strength of the fit between it and the decorative strip 322.

[0075] Reference Figure 5In some embodiments, the button adapting hole 317 can be located in the second sub-slot section 3152, meaning that the projections of the button adapting hole 317 and the second sub-slot section 3152 on the earphone fixing portion 311 can at least partially overlap. In some embodiments, the decorative strip 322 can be located not only within the first and second sub-slot sections 3151 and 3152, but can also extend further into the third sub-slot section 3153. In this case, after the decorative bracket 321 is inserted into and secured to the first sub-slot section 3151, the surface of the decorative bracket 321 facing away from the earhook housing 31 can be substantially flush with the bottom of the third sub-slot section 3153, allowing the decorative strip 322 to lie flat against the earphone fixing portion 311, the decorative bracket 321, and the accommodating compartment 313. Furthermore, the decorative bracket 321 can form a cantilever at the position of the button adapting hole 317 in the second sub-slot section 3152, thereby enhancing the structural strength of this portion.

[0076] Figure 6 and Figure 7 This is a schematic structural diagram of a decorative bracket for headphones provided according to some embodiments of the present application.

[0077] like Figure 6 As shown, in some embodiments, the decorative bracket 321 may further be provided with a second groove 3211 on the side facing the ear hook shell 31, so that when the decorative bracket 321 is embedded in and fixed in the first groove 315, the second groove 3211 and the first groove 315 cooperate with each other to form a wiring channel.

[0078] In some embodiments, the decorative bracket 321 may include a fixing portion 3212 corresponding to the first sub-slot segment 3151 and a pressing portion 3213 corresponding to the second sub-slot segment 3152. The thickness of the fixing portion 3212 may be greater than the thickness of the pressing portion 3213. The fixing portion 3212 may be used to facilitate assembly between the decorative bracket 321 and the earhook housing 31, and the pressing portion 3213 may be used to trigger the button 36. Furthermore, when the decorative bracket 321 has a second groove 3211 on the side facing the earhook housing 31, the second groove 3211 may be provided on the fixing portion 3212.

[0079] like Figure 6 and Figure 7As shown, in some embodiments, the decorative bracket 321 may further include a connecting portion 3214 connected between the fixing portion 3212 and the pressing portion 3213. The connecting portion 3214 bends and extends toward a side away from the ear hook shell 31 compared to the fixing portion 3212, and the pressing portion 3213 bends and extends toward a side close to the ear hook shell 31 compared to the connecting portion 3214. At this time, the connecting portion 3214 makes the pressing portion 3213 suspended relative to the fixing portion 3212, and there is a certain distance between the pressing portion 3213 and the fixing portion 3212. The distance can be greater than or equal to the trigger stroke of the button 36. Such a setting can effectively improve the problem that when the user presses one end of the decorative bracket 321 (specifically, the end where the pressing portion 3213 is located), the other end of the decorative bracket 321 is tilted.

[0080] In some embodiments, a button protrusion 3215 may be further provided on the side of the pressing portion 3213 close to the ear hook shell 31, so that when the pressing portion 3213 is pressed by an external force, the button protrusion 3215 can trigger the button 36. The projections of the button protrusion 3215 and the button 36 on the headset fixing portion 311 at least partially overlap, and the effective area of ​​contact between the button protrusion 3215 and the button 36 is smaller than the effective area of ​​contact between the pressing portion 3213 and the button 36 when the button protrusion 3215 is not provided. With such a configuration, the difficulty of triggering the button 36 can be reduced. For example, when a seal 37 is provided between the button 36 and the headset fixing portion 311, the relationship between the external force applied by the user and the effective area of ​​the area where the seal 37 is deformed can be expressed as:

[0081] F∝ε·S.(1)

[0082] Because the seal 37 must first deform before the button 36 is activated, when the external force F applied by the user is the same, the smaller the effective area S of the region where the seal 37 needs to deform, the greater the deformation ε of the seal 37, making it easier to activate the button 36. Obviously, compared to the method of directly triggering the button 36 with the pressing portion 3213, the button protrusion 3215 can reduce the effective area.

[0083] In some embodiments, the decorative bracket 321 may be provided with a stopper 3216 at the end thereof near the earphone fixing portion 311. The stopper 3216 may be used to cooperate with the earphone fixing portion 311 to form a limiting structure for limiting the range of motion of the end of the decorative bracket 321, thereby preventing the end of the decorative bracket 321 from tilting from the first groove 315, especially under the action of external force. Figure 7As shown, the stopper 3216 can be provided at an end of the pressing portion 3213 away from the fixing portion 3212. At this time, due to the stopping effect between the stopper 3216 and the earphone fixing portion 311, the decorative bracket 321 will not tilt due to excessive elastic recovery after the decorative bracket 321 is deformed by external pressure and the button 36 is triggered.

[0084] Reference Figure 6 In some embodiments, the decorative bracket 321 may further include an overlapping portion 3217 at one end thereof that is closer to the accommodating compartment 313 (i.e., the end thereof that is further away from the pressing portion 3213). The overlapping portion 3217 is thinner than the fixing portion 3212 to achieve structural clearance with the reinforcement structure of the ear hook housing 31 (located between the bent transition portion 312 and the accommodating compartment 313).

[0085] Figure 8 2 is a schematic diagram of the exploded structure of headphones provided according to other embodiments of the present application.

[0086] Reference Figure 8 , the movement module 20 may include a movement shell 21 and a movement 22. One end of the movement shell 21 is open. In some embodiments, at least part of the structure of the ear hook shell 31 (for example, the earphone fixing portion 311) can be covered on the open end of the movement shell 21 to form a cavity structure for accommodating the movement 22. At this time, the ear hook shell 31 is equivalent to a cover plate of the movement shell 21. With such a configuration, compared with the plug-in assembly method of the ear hook structure and the movement structure in the related art, the cover assembly method of the ear hook shell 31 and the movement shell 21 in the embodiment of the present application can improve the stress problem at the plug-in point between the ear hook structure and the movement structure in the related art, thereby increasing the reliability of the earphone 10.

[0087] It should be noted that: when the above-mentioned earphones are bone conduction earphones, the above-mentioned movement 22 is used to convert electrical signals into mechanical vibrations and transmit them to the user's auditory nerve through the bone conduction process; when the above-mentioned earphones are air conduction earphones, the above-mentioned movement 22 can be used to convert electrical signals into mechanical vibrations and transmit them to the user's eardrum through the air conduction process, thereby stimulating the user's auditory nerve. It should also be noted that, Figure 8 The ear hook shell is shown in the figure, mainly to facilitate the description of the relative position relationship between the ear hook shell and the movement shell, and then implicitly show a possible assembly method between the ear hook shell and the movement shell.

[0088] In some embodiments, when the earphones are bone conduction earphones, the movement 22 can be directly or indirectly fixed in the movement housing 21, so that the movement 22 vibrates under the stimulation of the electrical signal and drives the movement housing 21 to vibrate together. When the user wears the earphones 10, the skin contact area of ​​the movement housing 21 (that is, the bottom wall 211 described later) can contact the user's skin, so that the above-mentioned vibration can be transmitted to the auditory nerve through the human skin, bones and other tissues, thereby allowing the user to hear the sound played by the earphones 10. In some embodiments, the movement module 20 may also include a movement bracket 23, which can be used to fix the movement 22 in the movement housing 21.

[0089] Figure 9 2 is a schematic diagram of a frequency response curve of headphones provided according to some embodiments of the present application.

[0090] Generally, low frequency refers to sounds with a frequency less than 500 Hz, medium frequency refers to sounds with a frequency range of 500-4000 Hz, and high frequency refers to sounds with a frequency greater than 4000 Hz. Figure 9 As shown, the horizontal axis represents the vibration frequency (in Hz) and the vertical axis represents the vibration intensity (in dB). The high-frequency region (frequency range greater than 4000 Hz) has a first high-frequency valley V, a first high-frequency peak P1, and a second high-frequency peak P2. The first high-frequency valley V and the first high-frequency peak P1 may be caused by deformation of the non-skin-contacting area of ​​the movement housing 21 (i.e., the annular circumferential wall 212 described below) at high frequencies, while the second high-frequency peak P2 may be caused by deformation of the skin-contacting area of ​​the movement housing 21 at high frequencies. Generally, a frequency response curve within the 500-6000 Hz frequency range is particularly critical for bone conduction headphones. Sharp peaks and valleys are undesirable within this frequency range; the flatter the frequency response curve, the better the sound quality of the bone conduction headphones. In some embodiments, the greater the rigidity of the movement housing 21, the less deformation it produces when subjected to stress, which also facilitates the generation of higher-frequency resonances. Therefore, by increasing the rigidity of the movement housing 21, the first high-frequency valley V, the first high-frequency peak P1, and the second high-frequency peak P2 can be shifted to higher frequencies.

[0091] In other words, to achieve better sound quality, the rigidity of the movement housing 21 can be as high as possible. To this end, in some embodiments of the present application, the material of the movement housing 21 can be, but is not limited to, a mixture of materials such as polycarbonate, polyamide, and acrylonitrile-butadiene-styrene copolymer with glass fiber or carbon fiber. In some embodiments, the material of the movement housing 21 can be a mixture of carbon fiber and polycarbonate in a certain proportion, or a mixture of glass fiber and polycarbonate in a certain proportion, or a mixture of glass fiber and polyamide in a certain proportion. In other embodiments, the material of the movement housing 21 can be a mixture of carbon fiber, glass fiber, and polycarbonate in a certain proportion. Adding different proportions of carbon fiber and / or glass fiber will result in different elastic moduli of the material and, consequently, different rigidity of the resulting movement housing 21. For example, adding 20%-50% glass fiber to polycarbonate can achieve an elastic modulus of 6-8 GPa.

[0092] Based on the above description, on the one hand, the earhook housing 31 (especially the earphone fixing portion 311) is a part of the structure of the movement module 20 to form a cavity structure for accommodating the movement 22; on the other hand, in the embodiment of the present application, in order to improve the wearing comfort of the earphone 10, the earhook housing 31 is generally made of a softer material, so that the rigidity of the earhook housing 31 is relatively low. In this configuration, when the earhook housing 31 is covered with the open end of the movement housing 21 to form a cavity structure for accommodating the movement 22, because the rigidity of the earhook housing 31 (especially the earphone fixing portion 311) is less than that of the movement housing 21, especially when the rigidity difference between the two is too large, the frequency response of the two will be significantly different (for example, the position of the resonance peak is far apart), resulting in the sound generated by the earhook housing 31 being unable to effectively offset the sound leakage caused by the vibration of the movement housing 21, resulting in the bone conduction earphones having a large sound leakage phenomenon, which in turn affects the user's preference.

[0093] Generally speaking, the resonant frequency of a structure is related to its stiffness; and at the same mass, the greater the stiffness of the structure, the higher its resonant frequency. The stiffness K of a structure is related to factors such as its material (specifically expressed as the elastic modulus) and the specific structural form. For example, the greater the elastic modulus E of the material, the greater the stiffness K of the structure; the greater the thickness t of the structure, the greater the stiffness K of the structure; and the smaller the area S of the structure, the greater the stiffness K of the structure. At this point, the above relationship can be simply described by the following relationship:

[0094] K∝(E·t) / S.(2)

[0095] Therefore, increasing the elastic modulus E of the material, increasing the thickness t of the structure, reducing the area S of the structure, or any combination thereof can increase the stiffness K of the structure, thereby increasing the resonant frequency of the structure.

[0096] In the embodiment of the present application, the earhook housing 31 can be made of a softer material (i.e., a material with a smaller elastic modulus, such as polycarbonate, polyamide, etc., whose elastic modulus is mostly 2-3 GPa), while the movement housing 21 can be made of a harder material (i.e., a material with a larger elastic modulus, such as adding 20%-50% glass fiber to polycarbonate, the elastic modulus of the material can reach 6-8 GPa, etc.). In some embodiments, the elastic modulus of the material used for the movement housing 21 can be 3-6 GPa greater than the elastic modulus of the material used for the earhook housing 31. Preferably, the elastic modulus of the material used for the movement housing 21 can be 4-5 GPa greater than the elastic modulus of the material used for the earhook housing 31. More preferably, the elastic modulus of the material used for the movement housing 21 can be 5 GPa greater than the elastic modulus of the material used for the earhook housing 31. Obviously, due to the difference in elastic modulus, the stiffness of the earhook housing 31 is also inconsistent with the stiffness of the movement housing 21, which is prone to the above-mentioned sound leakage. In addition, after the ear hook shell 31 is connected to the core shell 21, due to the inconsistency of the stiffness of the two, the structure is likely to resonate at a relatively low frequency. To this end, in some embodiments, when the elastic modulus of the core shell 21 is greater than the elastic modulus of the ear hook shell 31, the earphone fixing portion 311 can be provided with a reinforcement structure 318 (refer to Figure 10 ) so that the ratio of the difference between the stiffness K1 of the skin contact area of ​​the movement housing 21 and the stiffness K2 of the earphone fixing portion 311 to the stiffness K1 of the skin contact area of ​​the movement housing 21 is less than or equal to 10%, that is, (K1-K2) / K1≤10%, or K2 / K1≥90%. This configuration ensures that the movement housing 21 has sufficient stiffness to place its resonant frequency in the highest possible high-frequency range, while also minimizing the stiffness difference between the earphone fixing portion 311 and the movement housing 21, thereby increasing the structural resonant frequency and improving the aforementioned sound leakage issue.

[0097] Figure 10 This is a schematic cross-sectional structure diagram of the core shell of the earphone provided according to some embodiments of the present application.

[0098] like Figure 10 As shown, in some embodiments, the movement housing 21 may include a bottom wall 211 and an annular circumferential wall 212. The bottom wall 211 is the skin contact area of ​​the movement housing 21, and one end of the annular circumferential wall 212 is integrally connected to the bottom wall 211. In other words, the bottom wall 211 is used to contact the user's skin. In some embodiments, the earphone fixing portion 311 may include a fixed body 3111 connected to the bent transition portion 312 and an annular flange 3112 integrally connected to the fixed body 3111 and extending toward the movement housing 21. The annular flange 3112 and the other end of the annular circumferential wall 212 away from the bottom wall 211 are butted against each other, and the two can be connected by gluing or a combination of gluing and snapping.

[0099] It should be noted that: in some embodiments of the present application, the bottom wall 211 can be rectangular, square, circular, elliptical, or quasi-elliptical (similar to the shape of the bottom wall 211). Figure 11 In some embodiments, the annular circumferential wall 212 may be perpendicular to the bottom wall 211, that is, the area of ​​the open end of the movement housing 21 is equal to the area of ​​the bottom wall 211; the annular circumferential wall 212 may also be inclined outwardly at an angle relative to the bottom wall 211 (for example, the inclination angle is less than or equal to 30°), that is, the area of ​​the open end of the movement housing 21 is greater than the area of ​​the bottom wall 211. In this embodiment, the bottom wall 211 is elliptical and the annular circumferential wall 212 is inclined outwardly by 10° relative to the bottom wall 211 as an example for illustrative description. With such an arrangement, under the premise of ensuring a certain degree of wearing comfort (since the bottom wall 211, as the skin contact area of ​​the movement housing 21, will contact the user's skin, its area should not be too small), reducing the area of ​​the bottom wall 211 can increase the resonant frequency of the movement housing 21.

[0100] like Figure 10 As shown in (a), in some embodiments, the reinforcement structure 318 can be an arc-shaped structure disposed between the fixing body 3111 and the annular flange 3112. The reinforcement structure 318 can be chamfered to abut the fixing body 3111 and the annular flange 3112. In some embodiments, the annular flange 3112 is relatively small in the thickness direction of the earphone fixing portion 311, and the annular flange 3112 and the arc-shaped structure can be integrated. In this case, the earphone fixing portion 311 can consist solely of the fixing body 3111 and the arc-shaped reinforcement structure 318. This arrangement reduces the effective area of ​​the earphone fixing portion 311, thereby increasing its rigidity and thereby reducing the stiffness difference between the earphone fixing portion 311 and the movement housing 21. It should be noted that the dimensions of the arc-shaped structure can be appropriately designed based on the rigidity requirements of the earphone fixing portion 311.

[0101] like Figure 10As shown in (b), in some embodiments, the reinforcement structure 318 can be a thickening layer integrally provided with the fixed body 3111, that is, the fixed body 3111 is thickened (Thicken). The material of the thickening layer can be the same as the material of the ear hook shell 31, for example, the material of the thickening layer is also any one of polycarbonate, polyamide, and acrylonitrile-butadiene-styrene copolymer. It should be noted that the reinforcement structure 318 can be located on the side of the fixed body 3111 close to the movement shell 21, or on the other side of the fixed body 3111 away from the movement shell 21, and of course it can also be located on both sides of the fixed body 3111. In some embodiments, the annular flange 3112 is smaller in the thickness direction of the earphone fixing part 311, and the annular flange 3112 can be integrated with the above-mentioned thickening layer. At this time, for the earphone fixing part 311, its structure can only include the fixed body 3111 and the reinforcement structure 318 provided with the thickening layer. In this manner, the thickened layer increases the effective thickness of the headphone mounting portion 311, thereby increasing the rigidity of the headphone mounting portion 311 and thereby reducing the rigidity difference between the headphone mounting portion 311 and the movement housing 21. It should be noted that the size of the thickened layer can be appropriately designed based on the rigidity requirements of the headphone mounting portion 311.

[0102] In some other embodiments, the reinforcement structure 318 may be a metal part. The material of the metal part may be, but is not limited to, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, chromium-molybdenum steel, stainless steel, etc. In this case, the reinforcement structure 318 and the earphone fixing portion 311 may be a metal insert injection-molded integrally formed structural part. With this arrangement, the metal part can effectively increase the rigidity of the earphone fixing portion 311, thereby reducing the rigidity difference between the earphone fixing portion 311 and the movement housing 21. It should be noted that the material, size, and other parameters of the aforementioned metal part can be reasonably designed based on the rigidity requirements of the earphone fixing portion 311.

[0103] Figure 11 This is a schematic top view of the reinforcement structure in the earphone provided according to some embodiments of the present application.

[0104] like Figure 11 As shown, in some embodiments, the reinforcement structure 318 can be a reinforcement rib provided on the earphone fixing portion 311. The above reinforcement ribs can be distributed on the side of the earphone fixing portion 311 close to the core housing 21. In some embodiments, the number of reinforcement ribs can be multiple, and the multiple reinforcement ribs can be arranged as follows: Figure 11 The side-by-side arrangement shown in (a) and (b) or as shown in Figure 11 In some embodiments, the plurality of reinforcing ribs may also be arranged in a grid pattern with a preset reference point on the earphone fixing portion 311 as the center. Figure 11The radial arrangement shown in (d) in the figure. The material of the reinforcing ribs can be the same as that of the ear hook shell 31. For example, the material of the reinforcing ribs can also be any one of polycarbonate, polyamide, and acrylonitrile-butadiene-styrene copolymer. Compared with methods such as injection molding metal parts on the earphone fixing part 311 or directly thickening the earphone fixing part 311, the arrangement of reinforcing ribs on the earphone fixing part 311 can increase the rigidity of the earphone fixing part 311 while taking into account the weight of the earphone fixing part 311.

[0105] like Figure 11 As shown, the earphone fixing portion 311 may have a long axis direction (such as Figure 11 direction shown by the X-axis) and a short axis direction (as shown by the Figure 11 The size of the earphone fixing portion 311 along the long axis direction can be greater than its size along the short axis direction. The following is an exemplary description of the distribution of the reinforcing ribs:

[0106] like Figure 11 As shown in (a), in some embodiments, multiple reinforcing ribs can be arranged in strips along the long axis and arranged side by side along the short axis. In this case, the reinforcement structure 318 can be simply regarded as a long-side reinforcement of the earphone fixing portion 311.

[0107] like Figure 11 As shown in (b), in some embodiments, multiple reinforcing ribs may be arranged in strips along the short axis and arranged side by side along the long axis. In this case, the reinforcement structure 318 can be simply considered as a short-side reinforcement of the earphone fixing portion 311.

[0108] like Figure 11 As shown in (c), in some embodiments, multiple reinforcement ribs can be arranged along the long axis and the short axis to form a grid. In this case, the reinforcement structure 318 can be simply regarded as a cross reinforcement of the earphone fixing portion 311.

[0109] like Figure 11 As shown in (d), in some embodiments, the ends of the multiple reinforcing ribs close to each other can be spaced apart, and the extension lines of the multiple reinforcing ribs can intersect at a preset reference point (such as Figure 11 In this case, the reinforcement structure 318 can be simply regarded as a radial reinforcement of the earphone fixing portion 311 .

[0110] In some embodiments, when the following dimensional relationship is satisfied between the reinforcing rib and the earphone fixing portion 311, the rigidity of the earphone fixing portion 311 can be effectively increased while also taking into account the weight of the earphone fixing portion 311. Specifically, the ratio of the thickness of the reinforcing rib to the thickness of the earphone fixing portion 311 can be within the closed interval [0.8, 1.2], the ratio of the width of the reinforcing rib to the thickness of the earphone fixing portion 311 can be within the closed interval [0.4, 0.6], and the ratio of the spacing between the reinforcing ribs to the thickness of the earphone fixing portion 311 can be within the closed interval [1.6, 2.4]. In some embodiments, the thickness of the reinforcing rib can be the same as the thickness of the earphone fixing portion 311, the width of the reinforcing rib can be half the thickness of the earphone fixing portion 311, and the spacing between the reinforcing ribs can be twice the thickness of the earphone fixing portion 311. This embodiment is exemplified by assuming that the thickness of the earphone fixing portion 311 is 0.8 mm, and the thickness, width, and spacing of the reinforcing ribs are 0.8 mm, 0.4 mm, and 1.6 mm, respectively.

[0111] It should be noted that: Figure 10 and Figure 11 The various reinforcement structures shown in the figure can be reasonably combined according to the stiffness requirements of the earphone fixing part 311.

[0112] Figure 12 Schematic diagram of frequency response curves corresponding to various reinforcement structures provided in some embodiments of the present application.

[0113] like Figure 12 As shown, curve (A+B) indicates that the material of the earphone fixing portion 311 is different from that of the movement housing 21 (for example, the elastic modulus of the former is smaller than that of the latter), and the earphone fixing portion 311 has not been structurally improved (for example, the earphone fixing portion 311 has not been thickened, nor has it been provided with any of the aforementioned reinforcement structures); curve (B+B) indicates that the material of the earphone fixing portion 311 is the same as that of the movement housing 21 (for example, the elastic modulus of the two are equal), and the earphone fixing portion 311 is structurally similar to the movement housing 21 (for example, the thickness of the two is equal, and the area of ​​the earphone fixing portion 311 is also equal to the area of ​​the bottom wall 211). A can correspond to the earphone fixing portion 311, and B can correspond to the bottom wall 211 (that is, the skin contact area of ​​the movement housing 21); (A+B) and (B+B) can structurally correspond to the earhook housing 31 (specifically, the earphone fixing portion 311) covering the movement housing 21.

[0114] Depend on Figure 12It can be concluded that for structure (A+B), its resonance valley (which can correspond to the first high-frequency valley V mentioned above) occurs at a frequency of approximately 5500 Hz; while for structure (B+B), its resonance valley (which can correspond to the first high-frequency valley V mentioned above) occurs at a frequency of approximately 8400 Hz. Obviously, if structure (A+B) is improved to structure (B+B), the resonant frequency of the structure can be effectively increased.

[0115] In some embodiments, for the structure (A+B), the earphone fixing portion 311 is provided with the following Figure 10 Fillet shown in (a) Figure 10 Thickening (Thicken) shown in (b), such as Figure 11 Long-Side reinforcement shown in (a) Figure 11 Short-Side reinforcement shown in (b) Figure 11 Cross reinforcement (Cross) shown in (c), Figure 11 After the reinforcement structure 318 such as the radial reinforcement shown in (d) is installed, the resonance valley of (A+B+reinforcement structure) appears in the frequency range of 5500-8400Hz. In other words, the provision of the reinforcement structure 318 on the earphone fixing portion 311 does help increase the resonant frequency of the structure, that is, it helps to reduce the stiffness difference between the earphone fixing portion 311 and the movement housing 21, and thus helps to improve the above-mentioned sound leakage. It should be noted that: the structure of the reinforcement structure 318 is different, the effect of increasing the resonant frequency is different, and the degree of improvement of sound leakage is different.

[0116] Based on the above description, when the earphones are bone conduction earphones, the movement 22 can generate vibrations under the stimulation of electrical signals, and drive the movement housing 21 to vibrate together; when the user wears the earphones 10, the bottom wall 211 of the movement housing 21 (that is, the skin contact area) can contact the user's skin, so that the above vibrations can be transmitted to the auditory nerve through the human skull, and then the user can hear the sound played by the earphones 10. At this time, in order to ensure the reliability of the vibration transmission process, at least the movement housing 21 needs to be able to vibrate along with the movement 22. Therefore, the movement 22 needs to be fixed in the movement housing 21.

[0117] Figure 13 2 is a schematic cross-sectional structural diagram of a core module of an earphone provided according to other embodiments of the present application.

[0118] like Figure 13 and Figure 8As shown, in some embodiments, one end of the movement housing 21 is open, and the movement bracket 23 and the movement 22 are accommodated in the movement housing 21. The movement bracket 23 can be used to fix the movement 22 in the movement housing 21.

[0119] Figure 14 It is a structural schematic diagram of the core bracket of the earphone provided according to other embodiments of the present application.

[0120] Reference Figure 14 In some embodiments, the movement bracket 23 may include an annular bracket body 231 and a limiting structure provided on the bracket body 231. The movement 22 may be hung on the bracket body 231 to be fixedly connected to the movement housing 21. Figure 13 and Figure 14 The limiting structure and the movement housing 21 can be interfered with so that the movement bracket 23 is arranged along the circumference of the bracket body 231 (such as Figure 14 The plane where the bracket body 231 is located can be parallel to the plane where the bottom wall 211 is located to increase the fit between the two and thereby increase the vibration transmission effect. At this time, a colloid such as structural glue, hot melt glue, instant glue, etc. can also be set between the bracket body 231 and the bottom wall 211. Figure 13 (not shown). With this arrangement, the movement bracket 23 and the movement housing 21 can be assembled by a combination of snap-fitting and gluing, thereby effectively limiting the degree of freedom between the movement bracket 23 and the movement housing 21. Of course, in some other embodiments, the movement bracket 23 and the movement housing 21 can also be fixed directly by gluing. For example, a colloid such as structural glue, hot melt glue, instant glue, etc. is provided between the bracket body 231 and the bottom wall 211. Figure 13 (not shown), it can also effectively limit the freedom between the movement bracket 23 and the movement housing 21, and can also simplify the structure of the movement housing 21.

[0121] like Figure 13 As shown, the movement housing 21 may further include a positioning post 213 connected to the bottom wall 211 or the annular peripheral wall 212. Figure 14 As shown, the retaining structure may include a first retaining structure 232. The first retaining structure 232 is provided with an insertion hole 233. In some embodiments, the positioning post 213 may be inserted into the insertion hole 233. This arrangement can effectively increase the assembly accuracy between the movement bracket 23 and the movement housing 21. Furthermore, the aforementioned colloid may be disposed between the bracket body 231 and the bottom wall 211.

[0122] like Figure 14As shown, in some embodiments, the limiting structure may further include a second limiting structure 234. The second limiting structure 234 is arranged along the circumference of the bracket body 231 (eg Figure 14 The second limiting structure 234 is spaced apart from the first limiting structure 232 (in the direction indicated by the arrow C). The second limiting structure 234 is capable of abutting the annular circumferential wall 212, and the specific details will be described in detail later. In this arrangement, the second limiting structure 234 and the first limiting structure 232 respectively cooperate with corresponding structures on the movement housing 21, so that the movement bracket 23 and the movement housing 21 remain relatively fixed, effectively limiting the degrees of freedom between the movement bracket 23 and the movement housing 21.

[0123] In some embodiments, the open end of the annular peripheral wall 212 has a long axis direction (eg Figure 8 direction shown by the X-axis) and a short axis direction (as shown by the Figure 8 The dimension of the opening end of the annular peripheral wall 212 along the long axis direction may be greater than the dimension along the short axis direction.

[0124] Figure 15 2 is a schematic top view of the structure of the core module of the earphones provided according to other embodiments of the present application.

[0125] Reference Figure 14 and Figure 15 In some embodiments, the first limiting structure 232 and the second limiting structure 234 can be spaced apart on opposite sides of the bracket body 231 along the longitudinal direction, and the first limiting structure 232 and the second limiting structure 234 are located on the reference plane (such as Figure 15 The projection on the plane (shown by the dotted rectangle) is at least partially located outside the projection of the bracket body 231 on the reference plane. This arrangement facilitates the first limiting structure 232 to cooperate with the positioning post 213, and the second limiting structure 234 to cooperate with the annular peripheral wall 212.

[0126] like Figure 14 As shown, in some embodiments, the first limiting structure 232 may include a first axial extension portion 2321 and a first radial extension portion 2322. The first axial extension portion 2321 is connected to the bracket body 231 and extends along the axial direction of the bracket body 231 (eg, Figure 14 The first radial extension 2322 extends in the direction indicated by the Z-axis toward the side where the movement 22 is located. The first radial extension 2322 is connected to the first axial extension 2321 and extends radially outward of the bracket body 231. In some embodiments, an insertion hole 233 can be provided on the first radial extension 2322 to facilitate the mating of the first retaining structure 232 with the positioning post 213.

[0127] like Figure 14As shown, in some embodiments, the second limiting structure 234 may include a second axial extension portion 2341 and a second radial extension portion 2342. The second axial extension portion 2341 is connected to the support body 231 and extends along the axial direction of the support body 231 toward the side where the movement 22 is located; the second radial extension portion 2342 is connected to the second axial extension portion 2341 and extends along the radial direction of the support body 231 toward the outside of the support body 231. At this time, the second radial extension portion 2342 abuts against the annular circumferential wall 212, for example, the two are clamped together, so that the second limiting structure 234 abuts against the annular circumferential wall 212. In some embodiments, the movement 22 can be located between the first axial extension portion 2321 and the second axial extension portion 2341.

[0128] It should be noted that: Figures 13 to 15 As shown, taking the movement 22 as a reference, if the area between the first axial extension portion 2321 and the second axial extension portion 2341 is the inner side of the bracket body 231 , then the area outside the inner side is the outer side of the bracket body 231 .

[0129] See again Figure 13 In some embodiments, the annular circumferential wall 212 may further include an inclined region 214 corresponding to the first limiting structure 232 and arranged obliquely relative to the bottom wall 211. The positioning post 213 may be arranged on the inclined region 214. This arrangement can reduce the height of the positioning post 213 compared to arranging the positioning post 213 on the bottom wall 211, thereby increasing the structural strength of the positioning post 213 (especially the root portion thereof connected to the inclined region 214) on the movement housing 21, thereby preventing the positioning post 213 from breaking or falling off in extreme situations such as when the earphone 10 is dropped or collided.

[0130] See again Figure 15 The number of the second limiting structures 234 can be two, and the two second limiting structures 234 can be spaced apart along the short axis direction. The projection of the first limiting structure 232 on the reference plane and the projections of the two second limiting structures 234 on the reference plane are connected in sequence to form an acute triangle (such as Figure 15 In this case, the acute triangle can be an acute isosceles triangle or an equilateral triangle. This arrangement allows the interaction points between the movement bracket 23 and the movement housing 21 to be arranged as symmetrically as possible, thereby increasing the reliability of the assembly of the movement bracket 23 and the movement housing 21.

[0131] In some embodiments, the outer contour of the bracket body 231 can be circular, and the annular peripheral wall 212 can be provided with two arc-shaped recessed areas 2121 opposite each other along the minor axis. The outer contour of the bracket body 231 is respectively embedded in the two arc-shaped recessed areas 2121. This configuration can further limit the degree of freedom between the movement bracket 23 and the movement housing 21.

[0132] Based on the above description, when the elastic modulus of the core shell 21 is greater than the elastic modulus of the ear hook shell 31, the ear hook shell 31 is connected to the core shell 21 to form the above structure (A+B). Due to the difference in stiffness, the resonant frequency of the structure (A+B) may be lower (such as Figure 12 The above-mentioned sound leakage is also prone to occur when the structure (A+B) is improved to the structure (B+B), which can effectively increase the resonant frequency of the structure (as shown in the middle curve (A+B)). Figure 12 Based on this, in some embodiments of the present application, the relevant structure of the movement module 20 will be improved.

[0133] Figure 16 2 is a schematic diagram of the exploded structure of headphones provided according to other embodiments of the present application.

[0134] like Figure 16 As shown, the movement module 20 may further include a cover plate 24, which may be provided on the open end of the movement housing 21 to form a cavity structure for accommodating the movement 22. In other words, the cover plate 24 may be provided on the other end of the annular circumferential wall 212 away from the bottom wall 211, and be arranged opposite to the bottom wall 211. At this time, the cover plate 24 and the movement housing 21 may be connected by gluing or a combination of snap-fitting and gluing. In some embodiments, the ear hook housing 31 may be connected to the cover plate 24, for example, the earphone fixing portion 311 covers the side of the cover plate 24 away from the movement housing 21 in a full or half-covering manner. This embodiment is illustratively described by taking the example of the earphone fixing portion 311 fully covering the cover plate 24. At this time, the ear hook housing 31 and the movement housing 21 may still be connected by gluing or a combination of snap-fitting and gluing.

[0135] It should be noted that: Figure 16 The ear hook shell shown in the figure is mainly for the purpose of describing the relative position relationship between the ear hook shell and the cover plate, and then implicitly illustrating a possible assembly method between the ear hook shell and the cover plate.

[0136] In some embodiments, the elastic modulus of the movement shell 21 can be greater than the elastic modulus of the ear hook shell 31, and the elastic modulus of the cover plate 24 can be greater than the elastic modulus of the ear hook shell 31. At this time, replacing the earphone fixing portion 311 with the cover plate 24 to connect to the movement shell 21 can help increase the rigidity of the structure located at the open end of the movement shell 21 (for example, including the cover plate 24 and the earphone fixing portion 311), thereby helping to reduce the difference between the rigidity of the bottom wall 211 of the movement shell 21 and the rigidity of the structure at its open end. Such a setting can ensure that the movement shell 21 has a sufficiently large rigidity so that its resonant frequency is located in the highest possible high-frequency region, and also help to increase the resonant frequency of the entire shell structure (including the movement shell 21, the cover plate 24, and the earphone fixing portion 311), and help to improve the above-mentioned sound leakage.

[0137] In some embodiments, the elastic modulus of the cover plate 24 may be less than or equal to the elastic modulus of the movement housing 21. Preferably, the elastic modulus of the cover plate 24 is equal to the elastic modulus of the movement housing 21. At this time, the cover plate 24 and the movement housing 21 can form a structure similar to the above-mentioned (B+B) after being connected. In this way, the ratio of the difference between the stiffness K1 of the bottom wall 211 and the stiffness K3 of the cover plate 24 to the stiffness K1 of the bottom wall 211 can be less than or equal to 10%, that is, (K1-K3) / K1≤10%, or K3 / K1≥90%.

[0138] In some embodiments, the area of ​​the bottom wall 211 can be less than or equal to the area of ​​the cover plate 24, and the thickness of the bottom wall 211 is less than or equal to the thickness of the cover plate 24. Based on the above description, under the premise of ensuring a certain wearing comfort, reducing the area of ​​the bottom wall 211 can increase the resonant frequency of the movement housing 21. Therefore, in order to ensure that the movement housing 21 has sufficient rigidity so that its resonant frequency is in the highest possible high frequency range, this embodiment makes the area of ​​the bottom wall 211 less than or equal to the area of ​​the cover plate 24, that is, the area of ​​the open end of the movement housing 21 is greater than the area of ​​the bottom wall 211. In some embodiments, according to the above formula (2), when the elastic modulus of the cover plate 24 is less than or equal to the elastic modulus of the movement housing 21, and the area of ​​the bottom wall 211 is less than or equal to the area of ​​the cover plate 24, in order to satisfy the above relationship (K1-K3) / K1≤10%, the thickness of the bottom wall 211 needs to be less than or equal to the thickness of the cover plate 24.

[0139] In some embodiments, the material of the cover plate 24 can be the same as that of the movement housing 21. For example, the cover plate 24 and the movement housing 21 can both be a mixture of polycarbonate and glass fiber and / or carbon fiber. In some embodiments, according to formula (2), in order to satisfy the above relationship K3 / K1 ≥ 90%, the ratio between the thickness and area of ​​the cover plate 24 and the thickness and area of ​​the bottom wall 211 must be greater than or equal to 90%. Preferably, the thickness and area ratio of the bottom wall 211 is equal to the thickness and area ratio of the cover plate 24.

[0140] It should be noted that according to the above formula (2), in order to satisfy (K1-K3) / K1≤10%, the structural parameters of the cover plate 24 and the movement housing 21 (such as thickness, area, and their ratio) can be designed based on the materials of the cover plate 24 and the movement housing 21, or the materials of the cover plate 24 and the movement housing 21 can be selected based on their structural parameters. Therefore, the above embodiment only provides two possible design solutions as examples.

[0141] Based on the above description, after the cover 24 is connected to the movement housing 21 , the earphone fixing portion 311 still needs to be connected to the side of the cover 24 facing away from the movement housing 21 , for example, the earphone fixing portion 311 fully covers the cover 24 .

[0142] In some embodiments, if the earhook shell 31 and the cover plate 24 are both made of plastic, and the elastic modulus of the former is smaller than that of the latter, the two can be formed into an integral structure by means of two-color injection molding. If the earhook shell 31 is made of plastic, and the cover plate 24 is made of metal, and the elastic modulus of the former is smaller than that of the latter, the two can be formed into an integral structure by means of metal insert injection molding. At this time, the earhook shell 31 and the cover plate 24 will be connected to the movement shell 21 as a whole. Such an arrangement can well ensure the vibration consistency of the earhook shell 31 and the cover plate 24.

[0143] In some embodiments, the earphone fixing portion 311 and the cover plate 24 are connected by gluing or a combination of clamping and gluing. At this time, the button mentioned above and the second microphone mentioned later can also be set between the earhook shell 31 and the cover plate 24. The specific structure will be described in detail later. In some embodiments, the colloid ( Figure 16The filling degree between the two (not shown) should be as large as possible, for example, greater than or equal to 90%. If the filling degree of the colloid between the earphone fixing portion 311 and the cover plate 24 is too low, not only will the connection strength between the earphone fixing portion 311 and the cover plate 24 be difficult to ensure, but there may also be a significant vibration lag between the two, and air may be trapped between them, which may adversely affect the resonant frequency of the structure and may also produce noise during the structure's vibration.

[0144] In some embodiments, different types of colloids (such as structural adhesive, hot melt adhesive, instant adhesive, silicone, etc.) provided between the earphone fixing portion 311 and the cover plate 24 also have a significant impact on the resonant frequency of the structure. Figure 17 It can be concluded that different types of colloids have an impact on the resonant frequency of the structure. In some embodiments, a colloid with a relatively high hardness, such as structural adhesive or hot melt adhesive, can be preferably provided between the earphone fixing portion 311 and the cover plate 24 .

[0145] Based on the above description, on the one hand, the movement bracket 23 can be used to fix the movement 22 in the movement housing 21 to increase the reliability of the movement 22 driving the movement housing 21 to vibrate; on the other hand, the cover 24 can be used to increase the rigidity of the structure located at the open end of the movement housing 21 (for example, the cover 24 and the earphone fixing portion 311) to reduce the difference between the rigidity of the bottom wall 211 of the movement housing 21 and the rigidity of the structure at its open end. As for the cooperation between the movement bracket 23 and the movement housing 21 (especially in the above-mentioned Z direction), it can be achieved by gluing between the bracket body 231 and the bottom wall 211, and / or snapping between the limiting structure and the annular circumferential wall 212.

[0146] Next, based on the cover plate 24 , another embodiment of the present application is provided regarding the cooperation between the movement bracket 23 and the movement housing 21 (especially in the aforementioned Z direction).

[0147] Figure 18 is a schematic cross-sectional structural diagram of a core module of an earphone provided according to other embodiments of the present application;

[0148] Figure 19 This is a schematic diagram of the structure of the cover of the earphone provided according to some embodiments of the present application.

[0149] like Figure 18 and Figure 19As shown, in some embodiments, the cover plate 24 not only covers the open end of the movement housing 21, but also has a pressing structure on the side of the cover plate 24 facing the movement housing 21. The pressing structure can be used to press and secure the movement bracket 23 within the movement housing 21. This configuration not only increases the rigidity of the structure at the open end of the movement housing 21 (specifically, the cover plate 24 and the headphone fixing portion 311), but also presses the movement bracket 23 within the movement housing 21, thereby enabling the cover plate 24 to achieve "two purposes".

[0150] like Figure 19 As shown, the cover plate 24 may include a cover plate body 241 and a pressing structure integrally connected to the cover plate body 241. The pressing structure may include a first pressing column 242 and a second pressing column 243, and the first pressing column 242 and the second pressing column 243 are arranged at intervals along the circumference of the cover plate body 241 and form abutment with the movement bracket 23. In some embodiments, the plane where the cover plate body 241 is located can be parallel to the plane where the bottom wall 211 is located, and at the same time, the plane where the cover plate body 241 is located can be parallel to the plane where the bracket body 231 is located, so that the extension direction of the first pressing column 242 and the second pressing column 243 can be perpendicular to the plane where the bracket body 231 is located, that is, the extension direction of the first pressing column 242 and the second pressing column 243 can be parallel to the above-mentioned Z direction. Such a setting can effectively limit the degree of freedom between the movement bracket 23 and the movement housing 21, especially in the above-mentioned Z direction.

[0151] Figure 20 Schematic diagram of the cover of the earphones provided according to other embodiments of the present application.

[0152] like Figure 20 As shown, the cover plate 24 may have a long axis direction (eg Figure 20 direction shown by the X-axis) and a short axis direction (as shown by the Figure 20 The cover plate 24 can be larger along its major axis than along its minor axis. In this case, the first pressing post 242 and the second pressing post 243 are spaced apart along the major axis. This arrangement increases the reliability of the cover plate 24 in pressing the movement bracket 23 within the movement housing 21.

[0153] In some embodiments, the number of the second pressure columns 243 can be two, and the two second pressure columns 243 can be spaced apart along the short axis direction of the cover plate 24. The projection of the first pressure column 242 on the cover plate body 241 and the projection of the two second pressure columns 243 on the cover plate body 241 are connected in sequence to form an acute triangle (such as Figure 20In this case, the acute triangle can be an acute isosceles triangle or an equilateral triangle. This arrangement allows the points of interaction between the cover plate 24 and the movement bracket 23 to be arranged as symmetrically as possible, thereby increasing the reliability of the cover plate 24 in pressing the movement bracket 23 into the movement housing 21.

[0154] See again Figure 18 , the first pressing column 242 can contact and abut the first limiting structure 232, and the second pressing column 243 can contact and abut the second limiting structure 234. At this time, the second limiting structure 234 and the annular peripheral wall 212 may not form a contact. Figure 13 The abutting and fitting relationship shown is used to reduce the processing accuracy of the second limiting structure 234, thereby saving the manufacturing cost of the movement bracket 23.

[0155] Similarly, if Figure 14 As shown, the first limiting structure 232 may include a first axial extension portion 2321 and a first radial extension portion 2322. The first axial extension portion 2321 is connected to the bracket body 231 and extends along the axial direction of the bracket body 231 (eg Figure 14 The first radial extension portion 2322 is connected to the first axial extension portion 2321 and extends radially outward from the support body 231. At this time, the insertion hole 233 is provided on the first radial extension portion 2322, and the first pressing column 242 is in contact with the first radial extension portion 2322, that is, the first pressing column 242 presses against the first radial extension portion 2322. Further, as shown in FIG. Figure 14 As shown, the second retaining structure 234 can include a second axially extending portion 2341 and a second radially extending portion 2342. The second axially extending portion 2341 is connected to the support body 231 and extends axially of the support body 231 toward the side where the movement 22 is located. The second radially extending portion 2342 is connected to the second axially extending portion 2341 and extends radially outward of the support body 231. At this point, the second pressing post 243 abuts the second radially extending portion 2342, i.e., the two are in contact and form a pressing force.

[0156] It should be noted that when the number of the second pressure posts 243 is two, spaced apart along the minor axis, and the projection of the first pressure post 242 on the cover plate body 241 and the projections of the two second pressure posts 243 on the cover plate body 241 are connected in sequence to form an acute triangle, the number of the second limiting structures 234 can also be two, spaced apart along the minor axis, and respectively arranged corresponding to the second pressure posts 243. With such an arrangement, when the first pressure post 242 abuts against the first limiting structure 232 (specifically, the first radial extension 2322), the two second pressure posts 243 can respectively abut against the second limiting structure 234 (specifically, the second radial extension 2342), thereby increasing the reliability of the cover plate 24 in pressing the movement bracket 23 into the movement housing 21.

[0157] like Figure 18 As shown, the first axial extension portion 2321 and the second axial extension portion 2341 extend toward the direction close to the cover plate 24, and the first and second abutting columns 242 and 243 extend toward the direction close to the movement housing 21. In some embodiments, the heights of the first and second limiting structures 232 and 234 relative to the bracket body 231, and the heights of the first and second abutting columns 242 and 243 relative to the cover plate body 241, can both be half the distance between the cover plate body 241 and the bracket body 231. Such a setting can avoid the first limiting structure 232 and the second limiting structure 234 from breaking or falling off due to their excessive height relative to the bracket body 231 when the earphone 10 falls, collides, or encounters extreme situations such as the earphone 10 falling or colliding; or avoid the first pressing column 242 and the second pressing column 243 from breaking or falling off due to their excessive height relative to the cover body 241 when the earphone 10 falls, collides, or encounters extreme situations, thereby taking into account the structural strength of the first limiting structure 232 and the second limiting structure 234 on the bracket body 231 and the structural strength of the first pressing column 242 and the second pressing column 243 on the cover body 241.

[0158] See again Figure 19 In some embodiments, the first pressing column 242 may be arranged in a tubular shape. Figure 18 As shown, the positioning column 213 can not only be inserted into the above-mentioned insertion hole 233 to increase the assembly accuracy between the movement bracket 23 and the movement shell 21; it can also be further inserted into the first pressing column 242 to increase the assembly accuracy between the cover plate 24 and the movement shell 21.

[0159] Figure 21 2 is a schematic diagram of the exploded structure of the core module of the earphones provided according to other embodiments of the present application.

[0160] like Figure 21As shown, in some embodiments, when the earphones are bone conduction earphones, the movement module 20 may further include a first microphone 25 and a second microphone 26. When the cover plate 24 is placed on the open end of the movement housing 21, the two can form a cavity structure for accommodating the movement 22. In this case, the first microphone 25 can be accommodated within the movement housing 21, and the second microphone 26 can be arranged outside the movement housing 21, so that the cover plate 24 separates the first microphone 25 from the second microphone 26, thereby preventing interference between the two (especially the rear sound cavities of the two). In this configuration, the cover plate 24 not only increases the rigidity of the structure at the open end of the movement housing 21 (specifically, the cover plate 24 and the earphone fixing portion 311), and presses the movement bracket 23 into the movement housing 21, but also separates the first microphone 25 from the second microphone 26, thereby enabling the cover plate 24 to achieve "three functions in one piece." In some embodiments, when the ear hook housing 31 is covered on the cover plate 24 , that is, the earphone fixing portion 311 is covered on the side of the cover plate 24 facing away from the movement housing 21 , the second microphone 26 can be set between the cover plate 24 and the earphone fixing portion 311 .

[0161] Both the first microphone 25 and the second microphone 26 can be connected to the main control circuit board 50 so that they can process and transmit sound to the main control circuit board 50. The first microphone 25 and the second microphone 26 can be any one of a variety of types, such as electrodynamic, capacitive, piezoelectric, carbon, or semiconductor, or a combination thereof. Specifically, they can be electret or silicon pickups. Their specific structures are within the purview of those skilled in the art and will not be described in detail here. In this case, the first microphone 25 and the second microphone 26 can be used to pick up sounds from the wearer's environment to facilitate noise reduction in the earphones 10, thereby improving the user experience of the earphones 10. They can also be used to pick up the wearer's voice, allowing the earphones 10 to function as both a speaker and a microphone, thereby expanding the application range of the earphones 10. Of course, the first microphone 25 and the second microphone 26 can also simultaneously pick up the wearer's voice and the sounds of their environment, allowing the earphones 10 to simultaneously perform noise reduction and improve the user experience of the earphones 10.

[0162] like Figure 21As shown, in some embodiments, an annular flange 215 may be provided on the inner side of the annular circumferential wall 212, and the first microphone 25 may be embedded in and fixed within the annular flange 215. A microphone accommodating groove 244 is recessed on the side of the cover plate 24 (specifically, the cover plate body 241) facing away from the movement housing 21. The second microphone 26 may be disposed within the microphone accommodating groove 244 and covered by the earphone fixing portion 311. This reduces the overall thickness after the second microphone 26 is disposed between the cover plate 24 and the earphone fixing portion 311, thereby increasing the structural feasibility and reliability of the three components. In other words, the first microphone 25 can be fixed to the annular circumferential wall 212, and the second microphone 26 can be fixed to the cover plate 24. At this time, in order to facilitate the first microphone 25 and the second microphone 26 to pick up the wearer's voice and / or the sound of the wearer's environment, a pickup hole (not marked in the figure) can be opened on the annular circumferential wall 212 at a position corresponding to the first microphone 25, and a pickup hole (not marked in the figure) can also be opened on the earphone fixing portion 311 at a position corresponding to the second microphone 26. In some embodiments, the sound input direction of the first microphone 25 can be parallel to the cover plate 24 or inclined relative to the cover plate 24, and the sound input direction of the second microphone 26 can be perpendicular to the cover plate 24. This arrangement enables the first microphone 25 and the second microphone 26 to pick up sounds from different directions, thereby increasing the noise reduction effect and / or microphone effect of the earphone 10, thereby improving the user's favorability of the earphone 10.

[0163] It should be noted that the sound input direction of the first microphone 25 is perpendicular to the annular circumferential wall 212. Based on the above description, the plane of the cover plate 24 (specifically, the cover plate body 241) can be parallel to the plane of the bottom wall 211, and the annular circumferential wall 212 can be perpendicular to the bottom wall 211, or it can be tilted outward at an angle relative to the bottom wall 211 (for example, an angle of less than or equal to 30°). Therefore, when the annular circumferential wall 212 is perpendicular to the bottom wall 211, the sound input direction of the first microphone 25 is parallel to the cover plate 24; when the annular circumferential wall 212 is tilted outward at an angle relative to the bottom wall 211, the sound input direction of the first microphone 25 is tilted relative to the cover plate 24, and the tilt angles of the two can be substantially equal.

[0164] In some embodiments, the projection of the second microphone 26 on the cover plate 24 and the projection of the first microphone 25 on the cover plate 24 can be staggered with each other. This arrangement enables the first microphone 25 and the second microphone 26 to pick up sounds from different directions, thereby increasing the noise reduction effect and / or microphone effect of the headset 10, thereby improving the user's favorability of the headset 10. The projection of the second microphone 26 on the cover plate 24 can be arranged closer to the bent transition portion 312 than the projection of the first microphone 25 on the cover plate 24. This arrangement can increase the relative distance between the first microphone 25 and the second microphone 26, further enabling the first microphone 25 and the second microphone 26 to pick up sounds from different directions. In some embodiments, the larger the relative distance, the better.

[0165] It should be noted that: Figure 21 In the perspective shown, the first microphone 25 and the second microphone 26 are located on both sides of the cover plate 24, and the first microphone 25 is located on the back of the cover plate 24, so that the projection of the first microphone 25 on the cover plate 24 is actually invisible. Therefore, in order to facilitate the corresponding description, Figure 22 In FIG. 2 , the projection of the first microphone 25 on the cover plate 24 is replaced by a dotted frame.

[0166] like Figure 22 As shown, the cover plate 24 may have a long axis direction (eg Figure 22 direction shown by the X-axis) and a short axis direction (as shown by the Figure 22 The dimension of the cover plate 24 along the long axis direction may be greater than the dimension along the short axis direction. In this case, the line between the projection of the second microphone 26 on the cover plate 24 and the projection of the first microphone 25 on the cover plate 24 (as shown in FIG. Figure 22 The angle between the projection of the second microphone 26 on the cover plate 24 (dashed line shown in FIG) and the long axis is less than 45°; preferably, the angle is less than or equal to 10°; more preferably, the line connecting the projection of the second microphone 26 on the cover plate 24 and the projection of the first microphone 25 on the cover plate 24 coincides with the long axis. This arrangement allows the projection of the second microphone 26 on the cover plate 24 to be offset from the projection of the first microphone 25 on the cover plate 24, while also increasing the relative distance between them, thereby enabling the first microphone 25 and the second microphone 26 to further pick up sound from different directions. The projection of the second microphone 26 on the cover plate 24 can be positioned closer to the curved transition portion 312 than the projection of the first microphone 25 on the cover plate 24.

[0167] Based on the above description, the movement 22 and the first microphone 25 can be arranged in the movement housing 21, and the cover 24 can be covered on the open end of the movement housing 21. In order to facilitate wiring, corresponding through holes and grooves can be opened on the cover 24. Figure 21 and Figure 16As shown, in some embodiments, the cover plate 24 may further be provided with a threading hole 245. In some embodiments, the threading hole 245 may be provided close to the first microphone 25. This arrangement allows the wires ( Figure 21 and Figure 16 The wires (not shown) can extend from the movement housing 21 through the wire hole 245 to the side of the cover plate 24 facing away from the movement housing 21, and further extend through the wiring channel in the bent transition portion 312 to the accommodating compartment 313. At this time, after the earphone fixing portion 311 covers the cover plate 24, at least a portion of the wire (its length can be at least the straight-line distance between the wire hole 245 and the second microphone 26) will be located between the cover plate 24 and the earphone fixing portion 311.

[0168] like Figure 21 and Figure 16 As shown, in some embodiments, a wiring groove 246 recessed relative to the cover plate 24 can be provided on the side of the cover plate 24 facing away from the movement housing 21. One end of the wiring groove 246 can communicate with the wire hole 245, and the aforementioned wires can further extend along the wiring groove 146. This arrangement can reduce the overall thickness of the cover plate 24 and the headphone fixing portion 311 after the wiring is partially installed, thereby increasing the feasibility and reliability of the three structures.

[0169] It should be noted that after the wires are routed through the wire holes 245 and the wire grooves 246 within the movement housing 21, glue can be applied to at least both ends of the wire grooves 246 to secure the wires relative to the cover 24, thereby increasing the structural compactness of the cover 24, the earphone fixing portion 311, and the wires. Applying glue to the wire holes 245 can also improve the airtightness of the movement module 20.

[0170] Reference Figure 21 In some embodiments, two wire management grooves 216 may be provided side by side on the inner side of the annular peripheral wall 212. The two wire management grooves 216 may be provided close to the annular flange 215. Figure 21 Not shown) and the positive and negative terminals of the movement 22 ( Figure 21 The two welding points formed between the positive and negative terminals of the movement 22 and the positive and negative external wires can be separately accommodated in the two wire management grooves 216. This arrangement can avoid adverse phenomena such as short circuits when the positive and negative terminals of the movement 22 are welded with the positive and negative external wires, thereby increasing the reliability of the movement 22 wiring.

[0171] In some embodiments, when the earphone 10 is further provided with Figure 4As shown, a button 36 can also be provided on the side of the cover plate 24 facing away from the movement housing 21. The button 36 can be placed in the button accommodating groove and covered by the earphone mounting portion 311. This arrangement can reduce the overall thickness of the space between the cover plate 24 and the earphone mounting portion 311 after the button 36 is provided, thereby increasing the structural feasibility and reliability of the three components. It should be noted that the button accommodating groove can be similar to the microphone accommodating groove 244 described above and will not be further described here.

[0172] It should be noted that: Figure 2 The housing compartment 313 shown is mainly used to accommodate the main control circuit board 50. Figure 4 The housing compartment 313 shown may be mainly used to accommodate the battery 60. Therefore, the first microphone 25 and the second microphone 26 may specifically correspond to Figure 2 The ear hook assembly 30 shown is convenient for connecting the two to the main control circuit board 50, thereby shortening the wiring distance. In addition, due to the limited volume of the movement module 20 and the ear hook assembly 30, if the button 36 is set together with the first microphone 25 and the second microphone 26, it may cause interference between the three in structure. Therefore, in some embodiments, the button 36 may correspond to Figure 4 In other words, if the button 36 corresponds to the left ear hook of the headset 10, the first microphone 25 and the second microphone 26 can correspond to the right ear hook of the headset 10; conversely, if the button 36 corresponds to the right ear hook of the headset 10, the first microphone 25 and the second microphone 26 can correspond to the left ear hook of the headset 10. Figure 8 As for the movement module 20 shown in FIG. 1 , since it does not have Figure 16 The cover plate 24 of the movement module 20 shown here may require corresponding adjustments to the aforementioned structures, such as the first microphone 25, the second microphone 26, and the button 36. For example, the earphone 10 may only have one first microphone 25 or one second microphone 26; or, the earphone 10 may still have both the first microphone 25 and the second microphone 26, and while one of the first microphone 25 and the second microphone 26 corresponds to the left ear hook of the earphone 10, the other corresponds to the right ear hook of the earphone 10. For another example, the button 36 may be specifically fixed to the side of the earphone fixing portion 311 near the movement housing 21.

[0173] Figure 23 This is a schematic diagram of the principle of the movement of the earphones provided according to some embodiments of the present application.

[0174] Reference Figure 23In some embodiments, the movement 22 may include a magnetic cover 221, a magnet 222, a magnetic plate 223, and a coil 224. The magnetic cover 221 may include a bottom plate 2211 and an annular side plate 2212 integrally connected to the bottom plate 2211. Furthermore, the magnet 222 may be disposed in the annular side plate 2212 and fixed to the bottom plate 2211, and the magnetic plate 223 may be fixed to the side of the magnet 222 facing away from the bottom plate 2211. The coil 224 may be disposed in a magnetic gap 225 between the magnet 222 and the annular side plate 2212 and may be fixed to the movement bracket 23. In some embodiments, the magnetic gap between the magnet 222 and the annular side plate 2212 may be m, 1.0 mm ≤ m ≤ 1.5 mm, so as to take into account both the movement requirements of the coil 224 and the compactness of the movement 22.

[0175] It should be noted that: Figure 23 The movement shown can correspond to Figure 8 The movement module shown can also correspond to Figure 16 The movement module shown. Figure 23 The movement bracket shown in the figure is mainly for the purpose of facilitating the description of the relative positional relationship between the movement bracket and the movement, and further implicitly illustrating a possible assembly method between the movement bracket and the movement.

[0176] In some embodiments, magnet 222 may be, but is not limited to, a metal alloy magnet, a ferrite, or the like. Specifically, the metal alloy magnet may be, but is not limited to, any one of neodymium iron boron, samarium cobalt, aluminum nickel cobalt, iron chromium cobalt, aluminum iron boron, iron carbon aluminum, or the like, or a combination thereof; the ferrite may be, but is not limited to, any one of barium ferrite, steel ferrite, manganese ferrite, lithium manganese ferrite, or the like, or a combination thereof. Furthermore, magnet 222 has a magnetization direction to facilitate the formation of a relatively stable magnetic field.

[0177] Continue to refer to Figure 23 The magnetic shield 221 and the magnetic plate 223 can cooperate with each other to adjust the magnetic field generated by the magnet 222 to increase the utilization rate of the magnetic field. In some embodiments, the magnetic shield 221 and the magnetic plate 223 can be made of paramagnetic materials such as metal materials, metal alloys, metal oxide materials, amorphous metal materials, etc. Specifically, the above-mentioned soft magnetic materials can be, but are not limited to, iron, iron-silicon alloys, iron-aluminum alloys, nickel-iron alloys, iron-cobalt alloys, low-carbon steel, silicon steel sheets, silicon steel sheets, ferrites, etc.

[0178] This arrangement allows coil 224 to be located within the magnetic field formed by magnet 222, magnetic shield 221, and magnetic plate 223. Under the stimulation of the electrical signal, coil 224 is subjected to the Ampere force. Driven by the Ampere force, coil 224 causes movement 22 to generate mechanical vibrations. Movement 22 can be secured within movement housing 21 via movement bracket 23, allowing movement housing 21 to vibrate accordingly. In some embodiments, the resistance of coil 224 can be 8Ω to balance the generation of the Ampere force and the circuit structure of movement 22.

[0179] Based on the above description, the volume of the movement housing 21 is often limited, and it must at least accommodate structural components such as the movement 22, the movement bracket 23, and the first microphone 25. Although a greater Ampere force can be obtained by increasing the size of the movement 22 (for example, increasing the volume of the magnet 222 and / or increasing the number of turns of the coil 224), thereby better driving the movement housing 21, this will also increase the weight and volume of the movement module 20, which is not conducive to lightweighting the movement module 20. To this end, in some embodiments, the structure of the movement 22 can be designed based on the following Ampere force formula:

[0180] F=BILsinθ (3)

[0181] Among them, parameter B can represent the strength of the magnetic field formed by the magnet 222, the magnetic shield 221 and the magnetic plate 223, parameter L can represent the effective length of the coil 224 in the above magnetic field, and parameter θ can represent the angle between the two. Parameter I can represent the current in the coil 224 at a certain moment. Obviously, for a movement 22 that has been designed, manufactured and assembled, parameters B and L are often relatively fixed values; while parameter I changes with the change of the electrical signal input into the movement 22. Therefore, the optimized design of the movement 22 can be simply regarded as the optimized design of the force coefficient BL; and parameters B and L mainly depend on the structural parameters such as the shape and size of the magnet 222, the magnetic shield 221 and the magnetic plate 223.

[0182] The following is a detailed description of the influence of the shape, size and other structural parameters of the magnet 222, the magnetic cover 221 and the magnetic plate 223 on the force coefficient BL:

[0183] In some embodiments of the present application, the magnet 222 may be cylindrical. Figure 24 As shown, the horizontal axis is the diameter φ of the magnet 222, and the vertical axis is the thickness t1 of the magnet 222. Figure 24It can be concluded that: the larger the diameter φ of the magnet 222, the larger the value of the force coefficient BL; the larger the thickness t1 of the magnet 222, the larger the value of the force coefficient BL. In some embodiments, in order to enable the earphone 10 to produce sufficient volume, that is, to generate a sufficiently large Ampere force to drive the coil 224 and then drive the movement housing 21 to vibrate, the value of the force coefficient BL can be set to be greater than 1.3. In some embodiments, taking into account the weight and volume of the movement module 20 (specifically, the movement 22), the diameter φ and thickness t1 of the magnet 222 can preferably satisfy the following relationship: 10.5mm≤φ≤11.5mm, 3.0mm≤t1≤4.0mm. More preferably, in some embodiments, the diameter φ of the magnet 222 can be 10.8mm, and the thickness t1 can be 3.5mm.

[0184] In some embodiments, the diameter of the magnetic plate 223 can be equal to the diameter of the magnet 222. The thickness of the magnetic plate 223 can be equal to the thickness of the magnetic cover 221. The magnetic plate 223 and the magnetic cover 221 can also be made of the same material. Figure 25 As shown, the horizontal axis is the thickness t2 of the magnetic shield 221, and the vertical axis is the force coefficient BL. It can be concluded that within a certain range, the value of the force coefficient BL increases with the increase of the thickness t2; however, after t2 reaches a certain threshold (for example, t2>0.8mm), the change in the value of the force coefficient BL is not obvious, that is, after t2 exceeds the threshold, continuing to increase the thickness t2 will not only have little benefit but will also increase the weight of the movement 22. Therefore, considering the value of the force coefficient BL (at least greater than 1.3) and the weight and volume of the movement module 20 (specifically, the movement 22), the thickness t2 of the magnetic plate 223 and the magnetic shield 221 can preferably satisfy the following relationship: 0.4mm≤t2≤0.8mm. More preferably, in some embodiments, the thickness t2 can be 0.5mm.

[0185] In some embodiments, the annular side plate 2212 may also be cylindrical, and its diameter D may be the sum of the diameter φ of the magnet 222 and twice the magnetic gap m, that is, D=φ+2m. Figure 26As shown, the horizontal axis is the height h of the magnetic cover 221 (specifically, the annular side plate 2212), and the vertical axis is the force coefficient BL. It can be concluded that within a certain range, the value of the force coefficient BL increases with the increase of the height h of the magnetic cover 221; however, for h exceeding a certain threshold (for example, h>4.2mm), the value of the force coefficient BL becomes smaller and smaller. Therefore, considering the value of the force coefficient BL (at least greater than 1.3) and the weight and volume of the movement module 20 (specifically, the movement 22), the height h of the magnetic cover 221 can preferably satisfy the following relationship: 3.4mm≤h≤4.0mm. More preferably, in some embodiments, the height h of the magnetic cover 221 can be 3.7mm.

[0186] See again Figure 1 In some embodiments, the earphone 10 may include two core modules 20. Any one of the two core modules 20 may correspond to Figure 8 The movement module shown, the other can correspond to Figure 16 It should be noted that the specific structure of each movement module 20 can be the same or similar to any of the above embodiments, and the detailed description of any of the above embodiments can be referred to, which will not be repeated here.

[0187] Figure 27 This is a schematic diagram of the magnetic pole direction of the magnet of the earphone provided according to some embodiments of the present application.

[0188] like Figure 27 As shown, in some embodiments, the polarities of the magnets 222 of the two movement modules 20 on the side close to the bottom wall 211 of the movement housing 21 in which they are located are different, so that when the earphones 10 are not worn, the two movement modules 20 can be adsorbed to each other. This arrangement can make it convenient for users to store the earphones 10. It is worth noting that the magnet 222 of this embodiment can also be used to form a magnetic field, so that the coil 224 can vibrate under the excitation of an electrical signal. At this time, the magnet 222 can achieve "two uses in one piece".

[0189] In some embodiments, the magnets 222 may not be pre-magnetized before the movement module 20 is assembled; instead, after the movement module 20 is assembled, the movement module 20 as a whole is placed in a magnetizing device for magnetization treatment, thereby making the magnets 222 magnetic. After the magnetization treatment, the magnetic field directions of the magnets 222 of the two movement modules 20 may be as follows: Figure 27 With this arrangement, since the magnet 222 has no magnetism before assembly, the assembly of the core module 20 will not be disturbed by magnetic force, thereby increasing the assembly efficiency and yield of the core module 20, thereby increasing the production capacity and efficiency of the earphone 10.

[0190] Figure 28 This is a schematic cross-sectional structural diagram of a rear hanging component of an earphone provided according to some embodiments of the present application.

[0191] like Figure 28 As shown, in some embodiments, the rear hanging assembly 40 may include an elastic metal wire 41, a wire 42, and an elastic covering body 43 covering the elastic metal wire 41 and the wire 42. The elastic covering body 43 and the wire 42 are an integral structure formed by extrusion; the covering body 43 further forms a threading channel ( Figure 28 (not marked in the figure), the elastic wire 41 is threaded through the threading channel. In some embodiments, the threading channel can be formed during the extrusion molding process. In some embodiments, the elastic wire 41 can be made of, but not limited to, spring steel, titanium alloy, titanium-nickel alloy, chrome-molybdenum steel, etc., and the elastic sheath 43 can be made of, but not limited to, polycarbonate, polyamide, silicone, rubber, etc., so that the rear-mounted assembly 40 can achieve both wearing comfort and structural rigidity.

[0192] It should be noted that: since the elastic metal wire 41 is passed through the threading channel and is arranged in the covering body 43, Figure 28 The area where the elastic metal wire 41 is located can also be simply regarded as a threading channel in the sheath 43 .

[0193] In some embodiments, the diameter of the threading channel in its natural state can be smaller than the diameter of the elastic metal wire 41, so that the elastic metal wire 41 can fill the threading channel after being inserted into the threading channel and remain fixed with the elastic sheathing body 43, so as to avoid the undesirable phenomenon of "sinking" of the rear hanging component 40 due to the large gap between the elastic sheathing body 43 and the elastic metal wire 41, especially when the user presses the rear hanging component 40, thereby increasing the structural compactness of the rear hanging component 40.

[0194] In some embodiments, the number of the wires 42 may be at least two. Each wire 42 may include a metal wire and an insulating layer covering the metal wire ( Figure 28 The insulating layer is mainly used to achieve electrical insulation between metal wires.

[0195] It should be noted that: Figure 1 、 Figure 2 、 Figure 3 、 Figure 8 and Figure 16 As shown, since the main control circuit board 50 and the battery 60 can be respectively arranged in the two ear hook components 30, and Figure 2 and Figure 3 The ear hook assembly 30 shown can correspond to the left ear hook and the right ear hook of the headset 10 respectively. Not only the main control circuit board 50 and the battery 60 need to be connected via the wire 42 built into the back cover assembly 40, but also the ear hook 30 can correspond to the left ear hook and the right ear hook of the headset 10 respectively. Figure 1The movement module 20 (specifically, the movement 22) and the button 36 of the middle (left) ear hook assembly 30 need to be further connected to the corresponding Figure 1 The main control circuit board 50 of the middle (right) ear hook assembly 30 is connected, corresponding to Figure 1 The core module 20 (specifically, the core 22, the first microphone 25 and the second microphone 26) of the middle (right) ear hook assembly 30 also needs to be further connected to the corresponding Figure 1 The battery 60 of the middle (left) ear hook assembly 30 is connected. Therefore, in some embodiments, the wire 42 needs to realize at least the connection of the three circuits mentioned above.

[0196] Based on the above description, in some embodiments of the present application, the rear mount assembly 40 can be manufactured according to the following process flow:

[0197] 1) Provide an extrusion molding device and a wire.

[0198] On the one hand, the extrusion molding equipment can be added with raw materials for molding the elastic coating 43. In the extrusion molding process, the raw materials of the elastic coating 43 will at least go through the stages of melting and plasticizing, extrusion through the die, shaping, cooling, and pulling.

[0199] On the other hand, the number of the wires 42 can be at least two, so as to facilitate the connection between the various electronic components in the earphone 10. Furthermore, each wire 42 can include a metal wire and an insulating layer covering the metal wire, so as to achieve electrical insulation between the metal wires.

[0200] 2) placing the conductive wire in an extrusion molding device so that the raw material of the elastic coating and the conductive wire can obtain a corresponding first semi-finished product during the extrusion molding process.

[0201] The extrusion molding device can pull the wire 42 so that the elastic coating 43 can cover the wire 42 during the extrusion molding process. Furthermore, the head portion of the extrusion molding device can be provided with a core so that the aforementioned threading channel can be simultaneously formed within the elastic coating 43 during the extrusion molding process. Therefore, the aforementioned first semi-finished product can specifically be an integrated structure of the elastic coating 43 and the wire 42, and the coating 43 can have a threading channel extending generally along its axis.

[0202] 3) According to the use requirements of the rear suspension assembly, the first semi-finished product is further cut into second semi-finished products of corresponding lengths.

[0203] The actual length of the second semi-finished product may be slightly greater than its usable length for the rear hanging assembly, that is, the second semi-finished product still has a certain margin to facilitate subsequent processing steps.

[0204] 4) Passing the elastic metal wire through the threading channel of the second semi-finished product to obtain a rear hanging assembly.

[0205] After step 4), the back-hook assembly must be formed into a curved structure with a specific shape to fit the back of the user's head. Both ends of the back-hook assembly must also be processed to securely connect it to the earhook assembly and establish electrical connections between the main control circuit board, battery, buttons, movement, and first and second microphones. Therefore, the back-hook assembly produced in step 4) is essentially a semi-finished product.

[0206] In the above manner, due to the extrusion molding process, not only can a very long semi-finished product (specifically, it can be an integrated structure of the elastic sheath 43 and the wire 42) be produced at one time, but a wire threading channel extending generally along its axial direction can also be formed inside the sheath 43 at the same time. The semi-finished product is then cut into small segments of corresponding lengths for subsequent processing, thereby effectively improving the production efficiency of the rear suspension assembly.

[0207] The basic concepts have been described above. It will be apparent to those skilled in the art that the detailed disclosure above is merely illustrative and does not limit the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to the present application. Such modifications, improvements, and amendments are suggested in the present application and remain within the spirit and scope of the exemplary embodiments of the present application.

[0208] At the same time, this application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

[0209] In addition, unless expressly stated in the claims, the order of the processing elements and sequences described in this application, the use of alphanumeric characters, or the use of other names are not intended to limit the order of the processes and methods of this application. Although the above disclosure discusses some of the invention embodiments currently considered useful through various examples, it should be understood that such details are only for illustrative purposes, and the attached claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the essence and scope of the embodiments of this application. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.

[0210] Similarly, it should be noted that, in order to simplify the presentation of this application and thus facilitate understanding of one or more embodiments of the invention, the foregoing descriptions of the embodiments of this application sometimes combine multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those recited in the claims. In fact, an embodiment may have fewer features than all of the features of a single embodiment disclosed above.

[0211] In some embodiments, numbers are used to describe the quantity of components and attributes. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise stated, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the description and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the settings of such numerical values ​​are as accurate as possible within the feasible range.

[0212] Each patent, patent application, patent application disclosure, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this application is hereby incorporated by reference in its entirety. This includes application history documents that are inconsistent with or conflict with the content of this application, as well as documents (currently or subsequently attached to this application) that limit the broadest scope of the claims of this application. It should be noted that if the descriptions, definitions, and / or use of terms in the accompanying materials of this application are inconsistent or conflicting with the content of this application, the descriptions, definitions, and / or use of terms in this application shall prevail.

[0213] Finally, it should be understood that the embodiments described in this application are merely illustrative of the principles of the embodiments of this application. Other variations may also fall within the scope of this application. Therefore, by way of example and not limitation, alternative configurations of the embodiments of this application may be considered consistent with the teachings of this application. Accordingly, the embodiments of this application are not limited to the embodiments explicitly introduced and described in this application.

Claims

1. A headset, characterized in that: It includes a wearing component and a movement module, wherein the movement module is arranged at the end of the wearing component, and the wearing component is used to fix the movement module on the user's head, wherein, The movement module includes a movement housing, a movement, and a cover plate. One end of the movement housing is open, and the cover plate is arranged on the open end of the movement housing to form a cavity structure for accommodating at least the movement inside the movement housing. The wearing component includes an ear hook shell, which includes an earphone fixing portion, a bending transition portion and a accommodating compartment connected in sequence, and the earphone fixing portion is connected to the side of the cover plate away from the movement shell.

2. The earphone according to claim 1, wherein The earphone includes a first microphone and a second microphone, wherein the first microphone is accommodated in the core housing, and the second microphone is arranged outside the core housing.

3. The earphone according to claim 2, wherein The second microphone is arranged between the cover plate and the earphone fixing portion.

4. The earphone according to claim 2, wherein A projection of the second microphone on the cover plate and a projection of the first microphone on the cover plate are staggered with each other.

5. The earphone according to claim 2, wherein The projection of the second microphone on the cover plate is closer to the bent transition portion than the projection of the first microphone on the cover plate.

6. The earphone according to claim 2, wherein The cover plate includes a long axis and a short axis, the size of the cover plate along the long axis is larger than the size along the short axis, and the angle between the line connecting the projection of the second microphone on the cover plate and the projection of the first microphone on the cover plate and the long axis is less than 45°.

7. The earphone according to claim 2, wherein The cover plate is provided with a wire threading hole, and a wire routing channel is provided in the bent transition portion. The wire threading hole is provided near the first microphone to allow the wire connected to the first microphone to extend from the movement housing through the wire threading hole to the side of the cover plate facing away from the movement housing, and extend into the accommodating compartment through the wire routing channel.

8. The earphone according to claim 7, wherein A microphone accommodating groove and a wiring groove recessed into the cavity structure are provided on the side of the cover plate facing away from the movement housing. The second microphone is arranged in the microphone accommodating groove. One end of the wiring groove is connected to the wire threading hole, and the wire extends along the wiring groove.

9. The earphone according to claim 2, wherein The movement housing includes a bottom wall and an annular peripheral wall, one end of the annular peripheral wall is integrally connected to the bottom wall, the cover plate is arranged on the other end of the annular peripheral wall and is arranged opposite to the bottom wall, and the bottom wall is used to contact with the user; The first microphone is arranged on the annular circumferential wall, the sound input direction of the second microphone is perpendicular to the cover plate, and the sound input direction of the first microphone is parallel to the cover plate or is arranged obliquely relative to the cover plate.

10. The earphone according to claim 9, wherein An annular flange is provided on the inner side of the annular peripheral wall, and the first microphone is embedded in and fixed in the annular flange.

11. The earphone according to claim 9, wherein Two wire management grooves are provided on the inner side of the annular peripheral wall, and the welding points formed between the positive and negative terminal ends of the core and the positive and negative external wires are respectively accommodated in the two wire management grooves.

12. The earphone according to claim 9, wherein A ratio of a difference between the stiffness of the bottom wall and the stiffness of the cover plate to the stiffness of the bottom wall is less than or equal to 10%.

13. The earphone according to claim 1, wherein The movement module further includes a movement bracket, the movement is arranged on the movement bracket, and the movement bracket and the movement are accommodated in a cavity structure inside the movement housing; A pressing structure is provided on one side of the cover plate facing the cavity structure, and the pressing structure is used to press and fix the movement bracket in the movement housing.

14. The earphone according to claim 13, wherein The cover plate includes a cover plate body and the pressing structure integrally connected to the cover plate body, wherein the pressing structure includes a first pressing column and a second pressing column, the first pressing column and the second pressing column are arranged at intervals along the circumference of the cover plate body and form abutment with the movement bracket.

15. The earphone according to claim 14, wherein The cover body includes a long axis and a short axis. The size of the cover body along the long axis is larger than that along the short axis. The first pressing column and the second pressing column are spaced apart at least along the long axis.

16. The earphone according to claim 15, wherein There are two second pressure columns, and the two second pressure columns are spaced apart along the short axis direction; the projection of the first pressure column on the cover plate body and the projections of the two second pressure columns on the cover plate body are connected in sequence to form an acute triangle.

17. The earphone according to claim 1, wherein The movement module further includes a movement bracket, which includes an annular bracket body and a limiting structure provided on the bracket body, and the movement is hung on the bracket body; The limiting structure is in interference fit with the movement housing, so that the movement bracket is kept relatively fixed with the movement housing along the circumference of the bracket body.

18. The earphone according to claim 17, wherein The movement housing includes a bottom wall and an annular circumferential wall, one end of the annular circumferential wall is integrally connected to the bottom wall, and the other end of the annular circumferential wall is open away from the bottom wall, wherein the bottom wall is used to contact the user; the movement housing also includes a positioning column connected to the bottom wall or the annular circumferential wall, the limiting structure includes a first limiting structure, the first limiting structure is provided with an insertion hole, and the positioning column is inserted into the insertion hole.

19. The earphone according to claim 18, wherein The annular peripheral wall includes an inclined area corresponding to the first limiting structure and arranged obliquely relative to the bottom wall, and the positioning column is arranged on the inclined area.

20. The earphone according to claim 18, wherein The limiting structure further includes a second limiting structure, which is spaced apart from the first limiting structure along the circumference of the bracket body and abuts against the annular circumferential wall.

21. The earphone according to claim 20, wherein The open end of the annular circumferential wall includes a long axis direction and a short axis direction, the dimension of the open end of the annular circumferential wall along the long axis direction is larger than the dimension along the short axis direction, and the first limiting structure and the second limiting structure are spaced apart along the long axis direction on opposite sides of the bracket body; The projections of the first limiting structure and the second limiting structure on the reference plane where the opening end of the annular circumferential wall is located are at least partially located outside the projection of the bracket body on the reference plane.

22. The earphone according to claim 21, wherein There are two second limiting structures, and the two second limiting structures are spaced apart along the short axis direction. The projection of the first limiting structure on the reference plane and the projections of the two second limiting structures on the reference plane are connected in sequence to form an acute triangle.

23. The earphone according to claim 20, wherein A first pressing column and a second pressing column are provided on one side of the cover plate facing the bottom wall. The first pressing column contacts and abuts against the first limiting structure, and the second pressing column contacts and abuts against the second limiting structure.

24. The earphone according to claim 23, wherein The first limiting structure includes a first axial extension portion and a first radial extension portion, the first axial extension portion is connected to the bracket body and extends along the axial direction of the bracket body toward the side where the movement is located, the first radial extension portion is connected to the first axial extension portion and extends along the radial direction of the bracket body toward the outside of the bracket body, the insertion hole is provided on the first radial extension portion, and the first pressing column abuts against the first radial extension portion; The second limiting structure includes a second axial extension portion and a second radial extension portion, the second axial extension portion is connected to the bracket body and extends along the axial direction of the bracket body toward the side where the movement is located, and the second radial extension portion is connected to the second axial extension portion and extends along the radial direction of the bracket body toward the outside of the bracket body; The second pressing column abuts against the second radially extending portion, and the movement is located between the first axially extending portion and the second axially extending portion.

25. The earphone according to claim 23, wherein The first pressing column is tubular, and the positioning column is inserted into the first pressing column.

26. The earphone according to claim 21, wherein The outer contour of the bracket body is circular, and the annular peripheral wall is relatively provided with arc-shaped recessed areas along the short axis direction. The outer contour of the bracket body is embedded in the arc-shaped recessed areas, so that the bracket body is fixed relative to the movement housing.

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