A bone conduction headset

Abstract

The present application discloses a bone conduction headset. The bone conduction headset includes a speaker assembly and an ear hook assembly. The ear hook assembly includes a first ear hook shell, a connecting component and a second ear hook shell, the first ear hook shell and the second ear hook shell are matched and connected to form a receiving space with mutually perpendicular length and thickness directions; the first ear hook shell and the second ear hook shell are spliced ​​with each other along a splicing direction perpendicular to the length direction and the thickness direction, the first ear hook shell forms a first card slot and a second card slot, the second ear hook shell is provided with a first card block and a second card block, the first card block is embedded in the first card slot, the second card block is embedded in the second card slot, and the splicing edges of the first ear hook shell and the second ear hook shell fit each other to limit the relative movement of the first ear hook shell and the second ear hook shell in the splicing direction, the thickness direction and the length direction. In the above manner, the present application can improve the structural compactness of the ear hook assembly.

Description

Technical Field

[0001] The present application relates to the technical field of bone conduction earphones, and in particular to a bone conduction earphone. Background Art

[0002] Bone conduction is a sound transmission method that converts sound into mechanical vibrations of different frequencies, and transmits sound waves through the human skull, bony labyrinth, inner ear lymphatic fluid, spiral organ, auditory nerve, and auditory center. Bone conduction headphones use bone conduction technology to receive the sound, close to the bones, and the sound waves are directly transmitted to the auditory nerve through the bones. Therefore, both ears can be opened without damaging the eardrum, which is why they are loved by consumers, and bone conduction headphones will develop towards lightness and miniaturization. The ear hook structure of existing bone conduction headphones is not compact enough. Summary of the invention

[0003] The main technical problem solved by the present application is to provide a bone conduction headset that can improve the problem of the loose ear hook structure in the prior art.

[0004] In order to solve the above technical problems, a technical solution adopted by the present application is to provide a bone conduction headset, which includes a speaker assembly and an ear hook assembly. The ear hook assembly is connected to the speaker assembly and is used to be hung on the ear of the user.

[0005] The ear hook assembly includes a first ear hook shell, a connecting component and a second ear hook shell, one end of the connecting component is connected to the first ear hook shell, and the other end of the connecting component is plugged into and matched with the speaker assembly, and the first ear hook shell and the second ear hook shell are matched and connected to form an accommodating space; the accommodating space has a length direction and a thickness direction perpendicular to each other, the first ear hook shell and the second ear hook shell are spliced ​​with each other along a splicing direction perpendicular to the length direction and the thickness direction, the first ear hook shell is formed with a first card slot and a second card slot with the same opening direction at intervals along the length direction, the second ear hook shell is protruding along the length direction with a first card block and a second card block with the same extension direction, the first card block is embedded in the first card slot, and the second card block is embedded in the second card slot to limit the relative movement of the first ear hook shell and the second ear hook shell in the splicing direction and the thickness direction, and the splicing edges of the first ear hook shell and the second ear hook shell fit each other to limit the relative movement of the first ear hook shell and the second ear hook shell in the length direction.

[0006] The beneficial effects of the present application are as follows: Different from the prior art, the present application sets the first card slot and the second card slot with the same opening direction and the first card block and the second card block with the same extension direction, so that the first card block and the second card block can have the same matching direction with the first card slot and the second card slot. Since the first card block and the second card block have the same extension direction, the additional volume occupied by the first card block and the second card block can be reduced, and then the volume occupied by the first card block and the second card block and the first card slot and the second card slot can be reduced, so that the volume of the ear hook assembly can be effectively reduced, and the splicing edges of the first ear hook shell and the second ear hook shell fit each other, so that there is no need to set additional buckles, protrusions and other structures, so that the ear hook assembly structure is more compact and the volume of the ear hook assembly can be reduced. At the same time, the first card block and the second card block can limit the displacement in the splicing direction and the thickness direction through the cooperation with the first card block and the second card slot, and the displacement in the length direction can be limited through the fit of the splicing edges, so that the splicing of the first ear hook shell and the second ear hook shell can be more stable and the structure can be more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is a schematic structural diagram of an embodiment of the headset communication system of the present application;

[0008] Figure 2 is a schematic block diagram of a circuit of an embodiment of a headset communication system of the present application;

[0009] Figure 3 is a schematic top view of the overall structure of the bone conduction earphone embodiment of the present application;

[0010] Figure 4 It is an exploded schematic diagram of the overall structure of the bone conduction earphone embodiment of the present application;

[0011] Figure 5 This is a schematic diagram of the structural disassembly of the stick microphone assembly in the embodiment of the bone conduction earphone of the present application;

[0012] Figure 6 is an exploded schematic diagram of the structure of a speaker assembly in an embodiment of the bone conduction earphone of the present application;

[0013] Figure 7 is another exploded schematic diagram of the structure of the speaker assembly in the embodiment of the bone conduction earphone of the present application;

[0014] Figure 8 This is a schematic diagram of the structure of the fixing member, the rotating member and the stick microphone assembly in the embodiment of the bone conduction earphone of the present application;

[0015] Fig. 9 yes Figure 3 Schematic diagram of the cross-section structure with AA as the cutting line;

[0016] Fig.10It is an exploded schematic diagram of the structure of the ear hook assembly in the embodiment of the bone conduction earphone of the present application;

[0017] Fig.11 is another exploded schematic diagram of the structure of the ear hook assembly in the embodiment of the bone conduction earphone of the present application;

[0018] Fig.12 It is a structural schematic diagram of the first ear hook shell and the second ear hook shell in the embodiment of the bone conduction earphone of the present application;

[0019] Fig.13 is another structural schematic diagram of the first ear hook shell and the second ear hook shell in the embodiment of the bone conduction earphone of the present application;

[0020] Fig.14 yes Figure 3 A schematic diagram of the cross-sectional structure with BB as the cutting line;

[0021] Fig.15 It is another structural schematic diagram of the first ear hook shell and the second ear hook shell in the embodiment of the bone conduction earphone of the present application;

[0022] Fig.16 This is another exploded schematic diagram of the structure of the ear hook assembly in the embodiment of the bone conduction earphone of the present application;

[0023] Fig.17 This is a schematic diagram of the structure explosion of the rear hanging component in the embodiment of the bone conduction earphone of the present application;

[0024] Fig.18 It is a schematic diagram of the structure of the ear hook assembly in the bone conduction earphone embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] Intercom equipment plays a very important role in cluster communications. It is used for communication among group members and is widely used in civil, industrial, police and other fields. However, the voice communication confidentiality of intercom equipment is not strong, and when the external environment is noisy, it causes great interference to the voice communication of the intercom equipment, making it difficult for users to hear the content of the call, affecting the quality of use of the intercom equipment and limiting the use scenarios of the intercom equipment. In addition, the use environment of intercom equipment is often more complicated, and it is expected to maintain a good perception of the external environment while conducting intercom communications, thereby making users safer. In order to improve the above technical problems, the present application proposes an embodiment of a headphone communication system, which is described in detail below.

[0027] like Figure 1 and Figure 2 As shown, the headset communication system embodiment of the present application includes a bone conduction headset 1, an intercom device 2 and an external communication module 3.

[0028] The bone conduction earphone 1 converts audio into mechanical vibrations of different frequencies, uses human bones as a medium to transmit mechanical vibrations, and then transmits sound waves to the auditory nerve, so that the user can receive sound without passing through the external auditory canal and eardrum of the ear. In this embodiment, the bone conduction earphone 1 can have a Bluetooth function. Figure 2 As shown, the bone conduction headset 1 may include a first Bluetooth module 101. The first Bluetooth module 101 may be used to implement a Bluetooth communication function.

[0029] Intercom device 2, also known as an intercom, is a terminal device for cluster communication and can also be used as a wireless communication device in mobile communication. Generally speaking, an intercom converts the electrical signal of an audio into a radio frequency carrier signal through its transmitting component, and then transmits it through an antenna after amplification, filtering, etc., so that the user's voice can be transmitted. The antenna can receive the input signal, and after corresponding conversion, filtering, amplification, mixing, etc., it forms an audio signal, which is played through a speaker, so that the user can hear the audio sent by other intercom devices. The intercom device 2 in this embodiment can be an existing intercom device, and its components and structure will not be described in detail here.

[0030] Existing intercom devices basically do not support Bluetooth function. In order to enable the bone conduction headset 1 to effectively connect to the intercom device 2 via Bluetooth, this embodiment uses the external communication module 3 as a medium for Bluetooth communication between the bone conduction headset 1 and the intercom device 2.

[0031] Specifically, the intercom device 2 may include a first external interface 201. That is, the intercom device 2 may be provided with a first external interface 201 for expanding the functions of the intercom device 2, and different functions may be realized by connecting different external modules. The first external interface 201 may also be used for an external terminal to program the intercom device 2, etc. The first external interface 201 may include a plurality of contacts ( Figure 1 Shown but not labeled), for example, 7 contacts.

[0032] The external communication module 3 may include a second external interface 301 and a second Bluetooth module 302. The external communication module 3 may be detachably arranged on the intercom device 2, for example, the external communication module 3 may be fixed to the intercom device 2 in a snap-on manner. The second external interface 301 may also have the same number of contacts as the first external interface 201. When the external communication module 3 is installed on the intercom device 2, the first external interface 201 and the second external interface 301 are connected. The external communication module 3 is coupled to the intercom device 2 via the first external interface 201 and the second external interface 301. The intercom device 2 may implement a Bluetooth function via the external communication module 3.

[0033] like Figure 2 As shown, the intercom device 2 can establish a Bluetooth connection with the bone conduction headset 1 through the external communication module 3. After the intercom device 2 and the bone conduction headset 1 establish a Bluetooth connection through the external communication module 3, the bone conduction headset 1 can be used to control the intercom device 2. For example, the bone conduction headset 1 can be used to listen to the audio received by the intercom device 2, the microphone of the bone conduction headset 1 can be used to send corresponding voice, and other functions of the intercom device 2 can also be controlled. Of course, the intercom device 2 can also control the bone conduction headset 1.

[0034] In some embodiments, in order to facilitate the rapid Bluetooth connection between the bone conduction headset 1 and the intercom device 2, the Bluetooth addresses can be quickly exchanged between the bone conduction headset 1 and the intercom device 2 to facilitate rapid pairing. Figure 2 As shown, the bone conduction headset 1 can also have an NFC near field communication function, specifically, it can include a first NFC module 102, which can be used to implement the near field communication function. The external communication module 3 can also include a second NFC module 303, which can enable the intercom device 2 that does not have the NFC near field communication function to implement near field communication.

[0035] Specifically, the bone conduction headset 1 and the intercom device 2 can exchange Bluetooth addresses through the near field communication of the first NFC module 102 and the second NFC module 303, so that the first Bluetooth module 101 and the second Bluetooth module 302 perform Bluetooth pairing to establish a Bluetooth connection. For the above-mentioned exchange of Bluetooth addresses, there can be the following methods:

[0036] The first method: the bone conduction headset 1 sends the Bluetooth address to the intercom device 2, which can save the time of the intercom device 2 to search and select the bone conduction headset 1. That is, the first NFC module 102 can store or obtain the Bluetooth address of the first Bluetooth module 101. When the first NFC module 102 and the second NFC module 303 perform near-field communication, the first NFC module 102 can send the Bluetooth address to the second NFC module 303, so that the external communication module 3 can obtain the Bluetooth address of the first Bluetooth module 101, realize the Bluetooth address exchange, and then can perform fast pairing and connection.

[0037] The second method: the intercom device 2 sends the Bluetooth address to the bone conduction headset 1, which can save the time for the bone conduction headset 1 to search and select the intercom device 2. That is, the second NFC module 303 can store or obtain the Bluetooth address of the second Bluetooth module 302. When the first NFC module 102 and the second NFC module 303 perform near-field communication, the second NFC module 303 can send the Bluetooth address of the second Bluetooth module 302 to the first NFC module 102, so that the bone conduction headset 1 can obtain the Bluetooth address of the second Bluetooth module 302, realize the Bluetooth address exchange, and then can perform fast pairing and connection.

[0038] The third method: the intercom device 2 and the bone conduction headset 1 actively send each other's Bluetooth addresses, saving the time of searching and selecting each other, and realizing fast pairing and connection. That is, the first NFC module 102 can store or obtain the Bluetooth address of the first Bluetooth module 101, and the second NFC module 303 can store or obtain the Bluetooth address of the second Bluetooth module 302. When the first NFC module 102 and the second NFC module 303 perform near-field communication, the first NFC module 102 and the second NFC module 303 exchange each other's Bluetooth addresses to realize the exchange of Bluetooth addresses.

[0039] The intercom device 2 achieves a fast Bluetooth connection through the second NFC module 303 of the external communication module 3 and the first NFC module 102 of the bone conduction headset 1, so that the intercom device 2 can quickly match different bone conduction headsets 1. Taking industrial field operations as an example, different workers are equipped with different bone conduction headsets 1. For example, two workers can share an intercom device 2. The two workers can alternately use the shared intercom device 2 when taking turns, and the intercom device 2 can be quickly connected through the bone conduction headset 1. When a worker is on duty, he uses his bone conduction headset 1 and intercom device 2 to achieve "one touch to connect", and then he can use the communication system composed of the intercom device 2 and the bone conduction headset 1. When the worker is off duty and another worker starts to work, the other worker can also "one touch to connect" the bone conduction headset 1 and the intercom device 2, and then use the communication system composed of the intercom device 2 and the bone conduction headset 1, forming an operation logic of "independence" and "sharing". What is independent is that each person can use his own bone conduction headset 1, and what is shared is the intercom device 2. The communication system of this embodiment can also identify an individual with the bone conduction headset 1, so that multiple people can use the same intercom device 2, and can achieve fast switching, attendance clocking, personal identity recognition, etc.

[0040] The intercom device 2 and the bone conduction headset 1 are quickly paired with Bluetooth through NFC near-field communication to establish a Bluetooth connection. When the bone conduction headset 1 is worn, it can release the user's ears and transmit sound through bone conduction, which can reduce the impact of surrounding noise on sound transmission and improve the quality of voice communication. In addition, the bone conduction headset 1 is used to play the audio signal received by the intercom device 2 or to pick up the sound through the intercom device 2 and transmit it to other intercom devices 2, which can avoid the traditional intercom external speaker method and better protect privacy. In addition, for application scenarios such as factory workshops, users can also notice changes in the surrounding environment while using the bone conduction headset 1 for intercom communication, which can ensure the safety of the user.

[0041] For the bone conduction headset 1, the first NFC module 102 may be a passive NFC module. The first NFC module 102 may store the Bluetooth address of the first Bluetooth module 101, and may send the Bluetooth address of the first Bluetooth module 101 to the second NFC module 303. Of course, the first NFC module 102 may also be an active NFC module, which may send the Bluetooth address of the first Bluetooth module 101, and may also receive the Bluetooth address of the second Bluetooth module 302 sent by the second NFC module 303. Similarly, the second NFC module 303 may also be a passive NFC module or an active NFC module.

[0042] The first NFC module 102 can be attached to the battery assembly of the bone conduction headset 1, which is convenient to install and has a simple structure, and can also save space. When it is necessary to connect to the intercom device 2 via Bluetooth, the corresponding position of the battery assembly of the bone conduction headset 1 is placed close to the external communication module 3 on the intercom device 2, and Bluetooth pairing can be quickly performed.

[0043] In some implementations, in order to facilitate the control between the intercom device 2 and the bone conduction headset 1 and automatically switch the related functions between the intercom device 2 and the bone conduction headset 1, the corresponding sensors may be used for sensing and control. An example is given below:

[0044] like Figure 2 As shown, the bone conduction headset 1 may include a sensor assembly 17 for detecting whether the bone conduction headset 1 is worn. Specifically, the sensor assembly 17 includes, for example, an optical sensor, which detects whether it is worn by emitting and / or receiving a corresponding light signal. The optical sensor is, for example, a low-light sensor, which can emit a corresponding light signal. When the bone conduction headset 1 is worn, it will reflect the light signal to generate emitted light, and when the bone conduction headset 1 is not worn, it will not generate reflected light. The low-light sensor can detect whether the bone conduction headset 1 is worn or perform distance measurement by receiving reflected light. The low-light sensor is, for example, an infrared low-light sensor. The sensor assembly 17 may also include an acceleration sensor, a gravity sensor, a touch sensor, and the like.

[0045] The bone conduction headset 1 and the intercom device 2 are in a Bluetooth connection state. When the sensor component 17 detects that the bone conduction headset 1 is worn, the bone conduction headset 1 in the intercom device 2 is controlled to be used for sound pickup and / or voice playback, while the intercom device 2 in the bone conduction headset 1 and the intercom device 2 is not used for sound pickup and / or voice playback. That is, when the bone conduction headset 1 is worn, the communication system picks up sound through the microphone of the bone conduction headset 1 and / or plays voice through the speaker. When the sensor component 17 detects that the bone conduction headset 1 is not worn, the intercom device 2 in the bone conduction headset 1 and the intercom device 2 is controlled to pick up sound and / or voice playback, while the bone conduction headset 1 in the intercom device 2 is not used for sound pickup and / or voice playback. That is, when the bone conduction headset 1 is not worn, the communication system picks up sound through the microphone of the intercom device 2 and / or plays voice through the speaker.

[0046] Based on the above description, when the bone conduction headset 1 is not worn, if the bone conduction headset 1 is used to pick up sound or play voice, it may result in failure to effectively pick up sound or the user cannot hear the voice transmitted by the bone conduction headset 1. At this time, the intercom device 2 can be used to pick up sound and / or play voice, so that the played voice can be heard and / or effectively picked up. When the bone conduction headset 1 is worn, the bone conduction headset 1 can be used to pick up sound and / or play voice, which makes it convenient for the user to send voice or hear the played voice. The sensor component 17 detects whether the bone conduction headset 1 is worn, which makes it convenient for the communication system to realize the above-mentioned automatic switching, avoids the omission of voice information, can adapt to different usage scenarios, and improve work efficiency.

[0047] For the specific exemplary structure of the bone conduction earphone 1 of this embodiment, please refer to the following description of the bone conduction earphone 1 in the embodiment of the bone conduction earphone of the present application.

[0048] like Figure 3 and Figure 4 As shown, the bone conduction earphone embodiment of the present application may include two speaker assemblies 11, two ear hook assemblies 12, a rear hook assembly 13 connected between the two ear hook assemblies 12, a battery assembly 14 and a control circuit assembly 15.

[0049] The two speaker assemblies 11 are respectively connected to the two ear hook assemblies 12, and the ear hook assemblies 12 are connected between the back hook assembly 13 and the speaker assembly 11. The ear hook assembly 12 may be formed with a receiving space 120, wherein the receiving space 120 of one ear hook assembly 12 is used to receive the battery assembly 14, and the receiving space 120 of the other ear hook assembly 12 is used to receive the control circuit assembly 15. The battery assembly 14 is used to supply power to the bone conduction earphone 1, and the control circuit assembly 15 is used to control the operation of the bone conduction earphone 1 and implement corresponding operations.

[0050] In some implementations, the present embodiment may further include a stick microphone assembly 16 for picking up sound. The stick microphone assembly 16 may be connected to the speaker assembly 11. The number of the stick microphone assembly 16 may be one, which is connected to one of the two speaker assemblies 11. For example, the stick microphone assembly 16 may be connected to the speaker assembly 11 corresponding to the battery assembly 14. Of course, in some other embodiments, each speaker assembly 11 may be connected to a stick microphone assembly 16. Figure 4As shown, the stick microphone assembly 16 may include an elastic connecting rod 161 and a sound pickup assembly 162. One end of the elastic connecting rod 161 is connected to the speaker assembly 11. The other end of the elastic connecting rod 161 is connected to the sound pickup assembly 162. The sound pickup assembly 162 may have one or more microphones. For example, the number of microphones of the sound pickup assembly 162 is greater than or equal to 2, and the microphones may be arranged at intervals. For example, one microphone is located at the end of the sound pickup assembly 162 away from the speaker assembly 11, and the other microphones may be located on the side where the sound pickup assembly 162 is connected to the end. It is convenient for multiple microphones to work together, which can play a role in noise reduction and improving the quality of sound pickup. The bone conduction headset 1 can convert audio into mechanical vibration, that is, when the speaker assembly 11 plays the corresponding audio, the audio corresponding to the audio frequency band will cause the speaker 113 to generate corresponding vibration. The elastic connecting rod 161 can be configured so that the average amplitude attenuation rate of the vibration of the audio frequency band generated by the speaker assembly 11 when it is transmitted from one end of the elastic connecting rod 161 to the other end of the elastic connecting rod 161 is not less than 35%. Optionally, the average amplitude attenuation rate is not less than 45%. Optionally, the average amplitude attenuation rate is not less than 50%. Optionally, the average amplitude attenuation rate is not less than 55%. Optionally, the amplitude attenuation rate is not less than 60%. Optionally, the amplitude attenuation rate is not less than 70%.

[0051] In actual use, the mechanical vibration generated by the speaker assembly 11 of the bone conduction earphone 1 may have an adverse effect on the sound pickup effect of the stick microphone assembly 16, such as echo. For this reason, the elastic connecting rod 161 is configured so that the average amplitude attenuation rate of the vibration of the voice band generated by the speaker assembly 11 when it is transmitted from one end of the elastic connecting rod 161 to the other end of the elastic connecting rod 161 is not less than 35%. In this way, the elastic connecting rod 161 can effectively absorb the vibration during the vibration transmission process, reduce the vibration amplitude transmitted from one end of the elastic connecting rod 161 to the other end, and thus reduce the vibration of the sound pickup assembly 162 caused by the vibration generated by the speaker assembly 11, which can effectively reduce the influence of the vibration of the speaker assembly 11 on the sound pickup effect of the sound pickup assembly 162 and improve the sound pickup quality.

[0052] like Figure 5 As shown, the elastic connecting rod 161 may include a stick microphone elastic metal wire 1611 and a plug-in portion 1612 respectively connected to both ends of the stick microphone elastic metal wire 1611. That is, each end of the stick microphone elastic metal wire 1611 is connected to a plug-in portion 1612. One of the plug-in portions 1612 is used for plugging and matching with the pickup assembly 162. The other plug-in portion 1612 is used for plugging and matching with the speaker assembly 11. The plug-in structures of the two plug-in portions 1612 can be the same or different, and are respectively adapted to the corresponding plug-in structures of the pickup assembly 162 and the speaker assembly 11.

[0053] The elastic modulus of the stick microphone elastic wire 1611 can be 70-90GPa. Optionally, the elastic modulus of the stick microphone elastic wire 1611 is 75-85GPa. Optionally, the elastic modulus of the stick microphone elastic wire 1611 is 80-84Gpa. Optionally, the elastic modulus of the stick microphone elastic wire 1611 is 81-83Gpa. The material of the stick microphone elastic wire 1611 can be spring steel, titanium, other metals or non-metallic materials. By setting the elastic modulus of the stick microphone elastic wire 1611 to 70-90GPa, the stick microphone elastic wire 1611 can have a good ability to absorb vibrations, which can meet the requirements of the vibration absorption capacity of the stick microphone assembly 16, and then the sound pickup quality of the sound pickup assembly 162 can be improved.

[0054] like Figure 5 As shown, the elastic connecting rod 161 may include a stick-mike elastic coating 1613 coated on the outer periphery of the stick-mike elastic metal wire 1611, and the elastic modulus of the stick-mike elastic coating 1613 is 0.5-2Gpa. Optionally, the elastic modulus of the stick-mike elastic coating 1613 is 0.8-1.5Gpa. Optionally, the elastic modulus of the stick-mike elastic coating 1613 is 1.2-1.4Gpa. The stick-mike elastic coating 1613 may further cover part of the plug-in portion 1612, thereby protecting the stick-mike elastic metal wire 1611 and the plug-in portion 1612. The material of the stick-mike elastic coating 1613 may be silicone, rubber, plastic, etc. Optionally, the stick-mike elastic coating 1613 may be provided with a wire channel along its length direction, and the wire channel may be arranged in parallel and spaced relation with the stick-mike elastic metal wire 1611. The connector 1612 may be provided with a buried wire groove connected to the wire channel. The wire group used to connect the pickup assembly 162 may enter the wire channel through the buried wire groove of the adjacent connector 1612, and then enter the speaker assembly 11 through another connector 1612.

[0055] By setting the elastic modulus of the stick microphone elastic coating 1613 to 0.5-2Gpa, and because the stick microphone elastic coating 1613 is coated on the outside of the stick microphone elastic metal wire 1611, the vibration transmitted outward by the stick microphone elastic metal wire 1611 can be further absorbed, forming an internal and external coordinated vibration absorption effect, which can greatly enhance the vibration absorption effect of the stick microphone assembly 16, effectively reduce the vibration transmitted to the sound pickup assembly 162, and improve the sound pickup quality.

[0056] like Figure 6 As shown, the speaker assembly 11 may include a first speaker housing 111, a second speaker housing 112 and a speaker 113. The first speaker housing 111 and the second speaker housing 112 are connected to form a receiving space 110 for receiving the speaker 113.

[0057] The first speaker housing 111 can be plugged and matched with one end of the elastic connecting rod 161. In order to facilitate the adjustment of the sound pickup position of the stick microphone assembly 16, the stick microphone assembly 16 can be arranged to be able to rotate relative to the first speaker housing 111. Specifically, the speaker assembly 11 may include a rotating member 114. The first speaker housing 111 may be provided with a first through hole 1110. The rotating member 114 is rotatably inserted in the first through hole 1110, and the plug-in portion 1612 can be plugged and matched with the rotating member 114, so that the stick microphone assembly 16 can rotate relative to the first speaker housing 111.

[0058] The first speaker housing 111 may be provided with a second through hole 1111 spaced apart from the first through hole 1110. The second through hole 1111 is used for plugging and mating with the ear hook assembly 12, thereby connecting the speaker assembly 11 and the ear hook assembly 12. The first through hole 1110 and the second through hole 1111 are both connected to the receiving space 110.

[0059] Specifically, the first speaker housing 111 may include a bottom wall 1112 and a side wall 1113 connected to each other. The side wall 1113 surrounds and connects the bottom wall 1112, and the second speaker housing 112 is covered on a side of the side wall 1113 away from the bottom wall 1112 to form a receiving space 110 for accommodating the speaker 113. The first through hole 1110 is formed in the bottom wall 1112, and the second through hole 1111 is formed in the side wall 1113. The first through hole 1110 may be formed on a side of the bottom wall 1112 adjacent to the second through hole 1111, so that the first through hole 1110 and the second through hole 1111 are adjacent. Specifically, the bottom wall 1112 has a first protrusion 1114 protruding away from the receiving space 110, the first through hole 1110 is formed in the first protrusion 1114, the side wall 1113 has a second protrusion 1115 protruding away from the receiving space 110, the second through hole 1111 is formed in the second protrusion 1115, the protruding direction of the first protrusion 1114 and the protruding direction of the second protrusion 1115 are perpendicular to each other, and the first protrusion 1114 and the second protrusion 1115 are connected in an arc shape.

[0060] The first protrusion 1114 set on the bottom wall 1112 and the second protrusion 1115 set on the side wall 1113, the protrusion directions of the two are perpendicular to each other and are connected in an arc shape, which can enhance the structural strength and structural stability of the first speaker housing 111, and the rotating member 114 is embedded in the first through hole 1110 of the first protrusion 1114. The first protrusion 1114 has a corresponding height so that the rotation of the stick microphone assembly 16 will not be interfered by the first speaker housing 111. The protrusion directions of the first protrusion 1114 and the second protrusion 1115 are perpendicular to each other, which can also reduce the possibility of mutual interference between the ear hook assembly 12 and the stick microphone assembly 16.

[0061] In this embodiment, the pickup assembly 162 can be connected to other related components on the bone conduction headset 1, such as the battery assembly 14 or the control circuit assembly 15, through a corresponding wire group, so as to transmit the acquired audio signal to the related components for subsequent processing. The wire group of the stick microphone assembly 16 can pass through the stick microphone elastic coating 1613 of the elastic connecting rod 161 and be led out through the plug-in portion 1612. The wire group of the stick microphone assembly 16 can enter the first speaker housing 111 after passing through the plug-in portion 1612. Specifically, the wire group of the stick microphone assembly 16 can pass through the first through hole 1110 and pass through the receiving space 110 to the second through hole 1111. The wire group of the stick microphone assembly 16 can further pass through the ear hook assembly 12 from the second through hole 1111 in sequence to enter the receiving space 120, and electrically connect the battery assembly 14 or the control circuit assembly 15.

[0062] In actual use, the stick microphone assembly 16 can rotate relative to the first speaker housing 111, which will cause the wire group of the stick microphone assembly 16 to move. This may limit the rotation of the stick microphone assembly 16 due to improper movement of the wire group, and the wire group may also transmit the vibration of the speaker assembly 11 to the pickup assembly 162, thereby affecting the pickup effect of the pickup assembly 162, and may also affect the stability of the electrical connection. For this reason, the inventor of the present application proposes the following solution to improve the above technical problems.

[0063] like Figure 7 As shown, the speaker assembly 11 may include a holding piece 115 for holding the wire group of the stick microphone assembly 16. Specifically, the holding piece 115 may be disposed in the receiving space 110 and cover the first through hole 1110, so as to hold the wire group of the stick microphone assembly 16 that is passed through the first through hole 1110 to the second through hole 1111. In this way, the activity space of the wire group of the stick microphone assembly 16 can be limited, and the shaking or movement of the wire group can be reduced, thereby reducing the vibration generated by the vibration of the speaker assembly 11 and the vibration transmitted to the pickup assembly 162, improving the pickup effect of the pickup assembly 162, and improving the electrical stability. In addition, the holding of the holding piece 115 can also reduce the friction between the wire group and the first speaker housing 111, thereby protecting the wire group. The receiving space 110 is formed after the first speaker housing 111 and the second speaker housing 112 are connected in cooperation. Figure 7 In the figure, the receiving space 110 is marked at the first speaker housing 111 only for the convenience of understanding and description. In addition, since the rotating member 114 is inserted into the first through hole 1110, the first through hole 1110 is occupied by the rotating member 114. Figure 7 The first through hole 1110 is marked at the rotating member 114 for ease of understanding and description.

[0064] The holding member 115 may include a stacked hard cover plate 1151 and an elastic body 1152. The hard cover plate 1151 is farther away from the first through hole 1110 than the elastic body 1152. The elastic body 1152 is used to contact the wire group of the stick microphone assembly 16. The hardness of the hard cover plate 1151 is greater than the hardness of the elastic body 1152. The hard cover plate 1151 contacts the wire group by pressing the elastic body 1152. Since the hardness of the hard cover plate 1151 is greater than that of the elastic body 1152, the hard cover plate 1151 with greater hardness can ensure the rigidity of pressing the wire group, while the elastic body 1152 with less hardness can improve the absorption of the movement or vibration of the wire group, reduce the vibration of the wire group, and play a role of buffering and protection.

[0065] Specifically, the first speaker housing 111 is provided with a plurality of bosses 1117 protruding into the accommodating space 110 on the periphery of the first through hole 1110. The plurality of bosses 1117 may be arranged at intervals on the periphery of the first through hole 1110. The hard cover plate 1151 may be fixed to the plurality of bosses 1117, and the elastomer 1152 may be arranged between the plurality of bosses 1117. For example, the number of the bosses 1117 is three. By fixing the hard cover plate 1151 with the plurality of bosses 1117 arranged on the periphery of the first through hole 1110, and then pressing the elastomer 1152 to hold the wire group of the stick microphone assembly 16, the stability of the hard cover plate 1151 may be improved, and then the stability of the contact between the elastomer 1152 and the wire group may be improved.

[0066] Optionally, the hard cover plate 1151 is a steel sheet, and the elastic body 1152 is foam. Of course, the hard cover plate 1151 can also be other materials, such as plastic, ceramic, etc., and the elastic body 1152 can also be other materials, such as silicone, fiber, etc.

[0067] Based on the above description, by providing the pressing member 115 to press the wire group of the stick microphone assembly 16, the vibration of the wire group caused by the vibration of the speaker assembly 11 can be reduced, the stability of the wire group during the rotation of the stick microphone assembly 16 can be enhanced, and the wire group of the stick microphone assembly 16 can be protected. In addition, the rotation of the stick microphone assembly 16 also needs to have good stability, that is, the matching structure of the rotating member 114 and the first through hole 1110 plays a greater role in the rotation stability of the stick microphone assembly 16. The structure of the rotating member 114 is described as an example below.

[0068] like Figure 8As shown, the rotating member 114 may include a lead portion 1141 and a rotating portion 1142 connected to each other. The lead portion 1141 may be connected to the stick microphone assembly 16. The rotating portion 1142 may be embedded in the first through hole 1110 and may rotate relative to the first speaker housing 111. The wire group of the stick microphone assembly 16 may enter the receiving space 110 via the lead portion 1141 and the rotating portion 1142. Specifically, the lead portion 1141 may be formed with a first hole section 11410. The rotating portion 1142 may be formed with a second hole section 11420 along its axial direction. The first hole section 11410 and the second hole section 11420 are connected. The plug-in portion 1612 of the stick microphone assembly 16 may be inserted into the first hole section 11410 of the lead portion 1141. The wire group of the stick microphone assembly 16 may enter the receiving space 110 from the first hole section 11410 and the second hole section 11420. Optionally, the angle between the extension direction of the first hole segment 11410 and the extension direction of the second hole segment 11420 may be less than 180°. Optionally, the angle is less than 150°.

[0069] The rotating part 1142 may include a rotating body 11421 and a first stopper 11422 and a second stopper 11423 which are arranged at both ends of the rotating body 11421 and protrude along the radial direction of the rotating body 11421. Optionally, the rotating body 11421 may be arranged in a cylindrical shape, and a second hole section 11420 is provided along its axial direction. Optionally, the first stopper 11422 and the second stopper 11423 may be arranged on the outer periphery of the rotating body 11421, and may be arranged in an annular or open annular shape. Specifically, the first stopper 11422 is farther away from the lead part 1141 than the second stopper 11423, and the second stopper 11423 is closer to the lead part 1141 than the first stopper 11422.

[0070] like Fig. 9 As shown, the rotating body 11421 can be embedded in the first through hole 1110, and the first stopper 11422 and the second stopper 11423 are respectively abutted against the two sides of the first speaker housing 111 to limit the movement of the rotating part 1142 in its axial direction. Specifically, the first stopper 11422 and the second stopper 11423 are respectively abutted against the two sides of the first through hole 1110 in the first speaker housing 111, that is, one side located in the receiving space 110 and the other side located outside the receiving space 110. By the first stopper 11422 and the second stopper 11423 provided at both ends of the rotating body 11421 abutting against the two sides of the first speaker housing 111, the movement of the rotating part 1142 in its axial direction can be effectively limited, and then the rotating part 1142 is limited to rotate in the first through hole 1110, thereby enhancing its rotation stability.

[0071] like Figure 8 and Fig. 9As shown, in order to further enhance the rotational stability of the stick microphone assembly 16, the rotating part 1142 may be provided with a damping groove 1143. Optionally, the rotating body 11421 is formed with a damping groove 1143 along its circumference between the first stop portion 11422 and the second stop portion 11423. The speaker assembly 11 may include a damping member 116. The damping member 116 is disposed in the damping groove 1143 and contacts the peripheral wall of the first through hole 1110 to provide rotational damping for the rotating part 1142 through contact friction. The peripheral wall of the first through hole 1110, i.e., the bottom wall 1112, is arranged to form a portion of the first through hole 1110. Optionally, the damping member 116 is a rubber member, a plastic member or a silicone member. Of course, the damping member 116 can also be other types of materials. By arranging the damping member 116 to be embedded in the damping groove 1143 to provide damping for the rotation of the rotating part 1142 in the first through hole 1110, the rotation of the rotating part 1142 can be made smoother, thereby enhancing the balance and stability of the rotation of the stick microphone assembly 16.

[0072] In addition to rotation stability, the stick microphone assembly 16 also needs to enhance rotation reliability. If the stick microphone assembly 16 can rotate in the same direction without restriction, the wire group of the stick microphone assembly 16 will be entangled or broken. Moreover, the rotation in the same direction without restriction may cause the rotating member 114 of the rotating member 114 to fail more easily, making it difficult to adjust the angle of the stick microphone assembly 16 using the rotating member 114. To this end, the present embodiment can limit the rotation range of the stick microphone assembly 16 in the following manner.

[0073] like Figure 8 and Fig. 9 As shown, the rotating portion 1142 may be provided with a limiting groove 1144 , and the peripheral wall of the first through hole 1110 may be protrudingly provided with a bump 1116 , which is used to cooperate with the limiting groove 1144 to limit the rotation range of the rotating portion 1142 .

[0074] Optionally, the rotating body 11421 may form a limiting groove 1144 along its circumference between the first stop portion 11422 and the second stop portion 11423. The limiting groove 1144 and the damping groove 1143 may be arranged at intervals. Specifically, the limiting groove 1144 and the damping groove 1143 are arranged at intervals in the axial direction of the rotating body 11421. The limiting groove 1144 may be arranged in an open ring shape, that is, the angle occupied by the limiting groove 1144 is less than 360°.

[0075] The peripheral wall of the first through hole 1110 may be provided with a protruding bump 1116 ( Figure 6). The protrusion 1116 can be embedded in the limiting groove 1144. When the rotating part 1142 rotates relative to the first speaker housing 111, the two ends of the limiting groove 1144 can change the position between the protrusion 1116 and the rotating part 1142 as the rotating part 1142 rotates. When the limiting groove 1144 rotates until one end thereof abuts against the protrusion 1116, the protrusion 1116 can limit the rotating part 1142 from continuing to rotate along the current rotation direction. That is, the protrusion 1116 can abut against the two ends of the limiting groove 1144 to limit the rotation range of the rotating part 1142.

[0076] By cooperating with the limiting groove 1144 set on the rotating body 11421 and the protrusion 1116 set on the peripheral wall of the first through hole 1110, the protrusion 1116 can abut the two ends of the limiting groove 1144, thereby effectively limiting the rotation range of the rotating part 1142, and also allowing the stick microphone assembly 16 to rotate within a certain range instead of rotating in the same direction without restriction, thereby improving the reliability of the rotation of the stick microphone assembly 16, reducing the failure probability of the stick microphone assembly 16, and increasing the service life of the bone conduction headset 1.

[0077] like Figure 8 and Fig. 9 As shown, in order to reduce the occurrence of the stick microphone assembly 16 inserted into the first hole section 11410 falling off or being pulled out, the speaker assembly 11 may include a fixing member 117 for fixing the stick microphone assembly 16 inserted into the first hole section 11410 to limit the movement of the stick microphone assembly 16. Optionally, a fixing hole 160 may be provided at one end of the stick microphone assembly 16 inserted into the first hole section 11410. Specifically, the fixing member 117 may include a fixing body 1171 and a connector pin 1172 disposed at one end of the fixing body 1171. The fixing body 1171 is inserted into the second hole section 11420, and the connector pin 1172 is inserted into the fixing hole 160 to limit the movement of the stick microphone assembly 16. Specifically, the fixed body 1171 is also provided with corresponding lead holes 1170 along its length direction, connecting the second hole section 11420 and the receiving space 110, and the wires of the stick microphone assembly 16 can pass through the corresponding lead holes 1170 on the fixed body 1171 and enter the receiving space 110.

[0078] A notch 11424 may be formed at one end of the rotating portion 1142 away from the lead portion 1141, and the notch 11424 may be connected to the second hole section 11420. The fixing member 117 may include a boss 1173 protruding from the outer periphery of the fixing body 1171. The boss 1173 may be embedded in the notch 11424 and supported in the notch 11424. In this way, the rotating body 11421 may be supported to be stably accommodated in the second hole section 11420. Optionally, the number of the notches 11424 is at least two, and the end of the rotating portion 1142 away from the lead portion 1141 is divided into at least two sub-components 11425 spaced from each other along the circumference of the rotating portion 1142. That is, the notch 11424 may penetrate the circumference of the rotating body 11421 , and further divide the end of the rotating portion 1142 away from the lead portion 1141 into a corresponding number of sub-components 11425 in the circumferential direction of the rotating portion 1142 .

[0079] The end of the rotating part 1142 is divided into at least two sub-parts 11425 by providing a notch 11424, so that the end of the rotating part 1142 away from the lead part 1141 can have a certain degree of elasticity, which can reduce the difficulty of embedding the rotating part 1142 into the first through hole 1110 and improve the efficiency of assembly. At the same time, the boss 1173 is embedded in the notch 11424, and the structural reliability and strength of the rotating part 1142 are enhanced by the complementary manner of the two.

[0080] Optionally, the number of the notches 11424 is two and they are arranged opposite to each other. The number of the bosses 1173 is correspondingly two and they are opposite to each other. The two bosses 1173 are correspondingly embedded in the two notches 11424, so that the fixing member 117 is supported between the two sub-components 11425. Further, the two bosses 1173 are embedded in the two notches 11424, so that the fixing member 117 and the end of the rotating part 1142 away from the lead part 1141 can complement each other to form a complete ring structure.

[0081] Based on the above description, the second through hole 1111 is used for the ear hook assembly 12 to be plugged in and matched, and the wire group of the microphone assembly 16 passes through the second through hole 1111 to the accommodating space 120 of the ear hook assembly 12. The ear hook assembly 12 is described exemplarily in this embodiment.

[0082] like Fig.10 and Fig.11As shown, the ear hook assembly 12 may include a first ear hook shell 121, a connecting component 122 and a second ear hook shell 123. One end of the connecting component 122 may be connected to the first ear hook shell 121. The other end of the connecting component 122 is connected to the speaker 113. For example, the other end of the connecting component 122 is inserted into the second through hole 1111 of the first speaker shell 111 to be plugged and matched with the speaker assembly 11. The first ear hook shell 121 and the second ear hook shell 123 may be matched and connected to form a accommodating space 120 for accommodating a battery assembly 14 or a control circuit assembly 15. In this embodiment, the accommodating space 120 of one of the ear hook assemblies 12 is used to accommodate a battery assembly 14, such as Fig.10 The accommodating space 120 of the other ear hook component 12 is used to accommodate the control circuit component 15, such as Fig.11 The ear hook assembly 12 is shown.

[0083] like Fig.10 As shown, the battery assembly 14 may include a battery housing (not marked) and a battery cell (not shown) disposed in the battery housing, and the battery cell is used to store electricity. The first NFC module 102 mentioned in the above-mentioned embodiment of the headset communication system of the present application can be attached to the battery assembly 14, for example, attached to the battery housing, so that the volume of the bone conduction headset 1 can be reduced, and the electromagnetic interference or signal interference between the first NFC module 102 and the control circuit assembly 15 can be reduced.

[0084] like Fig.11 As shown, the control circuit assembly 15 may include a circuit board 151, a power interface 152, a button 153, an antenna 154, etc. Figure 2 The first Bluetooth module 101 shown can be integrated into the control circuit assembly 15. The control circuit assembly 15 can also be integrated with other circuits and components. For example, the first Bluetooth module 101 can be integrated on the circuit board 151. The sensor assembly 17 can also be integrated on the circuit board 151.

[0085] like Fig.11 As shown, taking the sensor assembly 17 including an optical sensor as an example, the first ear hook shell 121 can form a window 1200 for transmitting the optical signal of the optical sensor. The window 1200 can be arranged adjacent to the connecting component 122 so that the window 1200 is close to the position adjacent to the ear root of the user when the bone conduction earphone 1 is worn. Optionally, the window 1200 is arranged in a runway shape. Optionally, the extension line of the central axis of the connecting component 122 intersects with the long axis of the window 1200, as shown in FIG. Fig.11The schematic diagram shows the approximate intersection relationship. By setting the extension line of the central axis of the connecting component 122 and the long axis of the window 1200 to intersect, the window 1200 can be effectively close to the position of the user's ear root, thereby ensuring the sensitivity of the sensor component 17 and the effectiveness of detection. Specifically, the first ear hook shell 121 of the ear hook component 12 for accommodating the control circuit component 15 can form the above-mentioned window 1200.

[0086] The development trend of the bone conduction earphone 1 is to be lightweight and small in size, and the ear hook component 12 is used to accommodate the battery component 14 or the control circuit component 15 and related wiring, etc., which is often the larger part of the bone conduction earphone 1, and the design of the related buckle position and buckle structure in the ear hook component 12 will affect the volume of the entire ear hook component 12. In order to reduce the volume of the ear hook component 12, this embodiment provides the following shell structure of the ear hook component.

[0087] The first ear hook shell 121 can be formed with a first card slot 1211 and a second card slot 1212 set at intervals, and the second ear hook shell 123 can be formed with a first card block 1231 and a second card block 1232 set at intervals. The first card slot 1211 and the first card block 1231 can be snap-fitted, and the second card slot 1212 and the second card block 1232 can be snap-fitted, so that the first ear hook shell 121 and the second ear hook shell 123 can be snap-fitted.

[0088] Specifically, the accommodation space 120 may have a length direction and a thickness direction that are perpendicular to each other. In the following contents of this embodiment, unless otherwise specified, the length direction refers to the length direction of the accommodation space 120 , and the thickness direction refers to the thickness direction of the accommodation space 120 .

[0089] like Fig.12 and Fig.13 As shown, the first ear hook shell 121 and the second ear hook shell 123 are spliced ​​with each other along a splicing direction perpendicular to the length direction and the thickness direction, thereby forming the accommodating space 120. For example, the first ear hook shell 121 has a first sub-accommodating space 1210, and the second ear hook shell 123 has a second sub-accommodating space 1230. After the first ear hook shell 121 and the second ear hook shell 123 are spliced, the first sub-accommodating space 1210 and the second sub-accommodating space 1230 are combined into the accommodating space 120.

[0090] The first ear hook shell 121 may be formed with a first card slot 1211 and a second card slot 1212 with the same opening direction at intervals along the length direction. That is, the directions in which the openings of the first card slot 1211 and the second card slot 1212 face are the same. The second ear hook shell 123 is provided with a first card block 1231 and a second card block 1232 protruding along the length direction with the same extension direction. That is, the first card block 1231 and the second card block 1232 are arranged at intervals in the length direction, and the protruding directions of the two are the same, and then the two face the same direction, so that the first card block 1231 and the second card block 1232 can be respectively embedded in the first card slot 1211 and the second card slot 1212 along the same direction.

[0091] like Fig.14 As shown, the first card block 1231 can be embedded in the first card slot 1211, and the second card block 1232 can be embedded in the second card slot 1212 to limit the relative movement of the first ear hook shell 121 and the second ear hook shell 123 in the splicing direction and the thickness direction.

[0092] The splicing edge 1201 of the first ear hook shell 121 and the splicing edge 1202 of the second ear hook shell 123 may fit with each other to limit the relative movement of the first ear hook shell 121 and the second ear hook shell 123 in the length direction. In this embodiment, the splicing of the first ear hook shell 121 and the second ear hook shell 123 may refer to the splicing edge 1201 of the first ear hook shell 121 and the splicing edge 1202 of the second ear hook shell 123 being substantially in contact and connected. Among them, the splicing edge 1201 of the first ear hook shell 121 may refer to the edge of the first ear hook shell 121 facing the second ear hook shell 123, which is used for splicing with the second ear hook shell 123, such as Fig.12 Similarly, the splicing edge 1202 of the second ear hook shell 123 may refer to the edge of the second ear hook shell 123 facing the first ear hook shell 121, which is used to splice with the first ear hook shell 121. Fig.13 The spliced ​​edge 1202 is shown.

[0093] For example, the shapes of the splicing edge 1201 of the first ear hook shell 121 and the splicing edge 1202 of the second ear hook shell 123 are adapted to each other, and the two can fit together or complement each other to form a stable matching structure, which can limit the relative movement of the two in the length direction.

[0094] As the first card block 1231 and the second card block 1232 extend in opposite directions, the first card block 1231 and the second card block 1232 protrude in opposite directions, which will inevitably increase the additional space occupied by the first card block 1231 and the second card block 1232. In order to enable the first card block 1231 and the second card block 1232 to be embedded, the first card slot 1211 and the second card slot 1212 also need to increase the distance in the length direction so as to cover the first card block 1231 and the second card block 1232. In this embodiment, by providing the first card slot 1211 and the second card slot 1212 with the same opening direction and the first card block 1231 and the second card block 1232 with the same extending direction, the first card block 1231 and the second card block 1232 can be embedded in the first card slot 1211 and the second card slot 1212. The matching direction of 32 is the same as that of the first card slot 1211 and the second card slot 1212. Since the extension directions of the first card block 1231 and the second card block 1232 are the same, the additional volume occupied by the first card block 1231 and the second card block 1232 can be reduced, and the volume occupied by the first card block 1231 and the second card block 1232 and the first card slot 1211 and the second card slot 1212 can be reduced, so that the volume of the ear hook assembly 12 can be effectively reduced. In addition, by utilizing the splicing edge 1201 of the first ear hook shell 121 and the splicing edge 1202 of the second ear hook shell 123 to fit each other, there is no need to set additional buckles, protrusions and other structures, so that the structure of the ear hook assembly 12 is more compact and the volume of the ear hook assembly 12 can also be reduced. At the same time, the cooperation between the first card block 1231 and the second card block 1232 and the first card slot 1211 and the second card slot 1212 can limit the displacement in the splicing direction and the thickness direction, and the fit of the splicing edges 1201 and 1202 can limit the displacement in the length direction, so that the splicing of the first ear hook shell 121 and the second ear hook shell 123 can be more stable and the structure can be more reliable.

[0095] like Fig.12 As shown, the first card slot 1211 and the second card slot 1212 can be respectively located on both sides of the first ear hook shell 121 along the length direction, the opening direction of the first card slot 1211 is toward the accommodating space 120, and the opening direction of the second card slot 1212 is away from the accommodating space 120. That is, the opening direction of the first card slot 1211 is toward the first sub-accommodating space 1210, and the opening direction of the second card slot 1212 is away from the first sub-accommodating space 1210. Optionally, the first card slot 1211 is opened on a side of the first ear hook shell 121 close to the connecting part 122, and the second card slot 1212 is opened on a side of the first ear hook shell 121 away from the connecting part 122.

[0096] like Fig.13As shown, the first card block 1231 and the second card block 1232 can be respectively located on both sides of the second ear hook housing 123 along the length direction, the extension direction of the first card block 1231 is away from the accommodating space 120, and the extension direction of the second card block 1232 is toward the accommodating space 120. That is, the extension direction of the first card block 1231 is away from the second sub-accommodating space 1230, and the extension direction of the second card block 1232 is toward the second sub-accommodating space 1230. Correspondingly, the first card block 1231 is arranged on a side of the second ear hook housing 123 close to the connecting part 122, and the second card block 1232 is arranged on a side of the second ear hook housing 123 away from the connecting part 122. Since the second card block 1232 protrudes and extends into the accommodating space 120, compared to protruding and extending out of the accommodating space 120, it does not need to occupy additional space, which can save corresponding space. The second card slot 1212 is located in front of the extension direction of the second card block 1232 when engaged. The two are embedded in each other and can also reduce the volume of the ear hook assembly 12.

[0097] The splicing edge 1201 of the first ear hook shell 121 is provided with a first stopper 1213, and the splicing edge 1202 of the second ear hook shell 123 is provided with a second stopper 1234. The first stopper 1213 and the second stopper 1234 fit each other to limit the relative movement of the first ear hook shell 121 and the second ear hook shell 123 in the length direction. For example, the first stopper 1213 is an opening formed by the splicing edge 1201 of the first ear hook shell 121, and the second stopper 1234 is a protrusion formed by the splicing edge 1202 of the second ear hook shell 123. The shapes of the opening and the protrusion are adapted to each other and can fit each other, so that the splicing edge 1201 of the first ear hook shell 121 and the splicing edge 1202 of the second ear hook shell 123 can complement each other to limit the relative movement of the two in the length direction.

[0098] The opening direction of the first card slot 1211 is toward the accommodating space 120. If the first card slot 1211 is formed directly in the first sub-accommodating space 1210, in the process of forming the first sub-accommodating space 1210 and the first card slot 1211 using the corresponding mold, the demoulding direction of forming the first sub-accommodating space 1210 and the demoulding direction of forming the first card slot 1211 may interfere with each other. Since the demoulding direction of the first card slot 1211 is in the first sub-accommodating space 1210, it may also conflict with the demoulding direction of other structures, which brings great difficulties to production. Based on the above technical difficulties, the following structure is designed in this embodiment to reduce the difficulty of production and manufacturing.

[0099] like Fig.15As shown, the first ear hook shell 121 can be provided with an outer hole section 1215 and an inner hole section 1216 that are connected to each other in the direction from the outside of the accommodating space 120 to the inside of the accommodating space 120. That is, the opening direction of the outer hole section 1215 is away from the accommodating space 120, and the opening direction of the inner hole section 1216 is toward the accommodating space 120, and the outer hole section 1215 and the inner hole section 1216 are connected. A filling piece 1217 is filled in the outer hole section 1215. The filling piece 1217 is, for example, a rubber piece, such as hard glue. After the outer hole section 1215 is filled and blocked, the inner hole section 1216 can be used as the first card slot 1211, and the opening direction of the inner hole section 1216 is toward the accommodating space 120, which can cooperate with the first card block 1231.

[0100] In the actual manufacturing process, an outer hole segment 1215 and an inner hole segment 1216 can be formed in sequence from the outside of the first ear hook shell 121 to the inside of the first ear hook shell 121, and the demolding direction is not carried out in the first sub-accommodating space 1210, but outside the first ear hook shell 121, and then the outer hole segment 1215 is filled with a filling piece 1217, so that the remaining inner hole segment 1216 can be used as the first card slot 1211, which effectively reduces the manufacturing difficulty and complexity and saves costs.

[0101] The cross-sectional area of ​​the outer hole segment 1215 perpendicular to the communication direction between the outer hole segment 1215 and the inner hole segment 1216 is greater than the cross-sectional area of ​​the inner hole segment 1216 perpendicular to the communication direction between the outer hole segment 1215 and the inner hole segment 1216. Since the corresponding cross-sectional area of ​​the outer hole segment 1215 is greater than the corresponding cross-sectional area of ​​the inner hole segment 1216, it is convenient to fill the filling piece 1217 in the outer hole segment 1215, thereby having a better blocking effect, and forming the first slot 1211 more quickly.

[0102] Based on the above structural description of the outer hole segment 1215 and the inner hole segment 1216 of the ear hook assembly 12, the manufacturing method of the ear hook assembly 12 in this embodiment can be described as follows:

[0103] S100: A first ear hook shell 121 and a second ear hook shell 123 are formed by injection molding, and an outer hole section 1215 and an inner hole section 1216 that are connected to each other are formed in the first ear hook shell 121 from the outside of the first ear hook shell 121 to the inside of the first ear hook shell 121, and a first card block 1231 is formed on the second ear hook shell 123.

[0104] S200 : placing a filling piece 1217 in the outer hole section 1215 , and using the inner hole section 1216 as the first slot 1211 .

[0105] Optionally, a filling piece 1217 is filled in the outer hole section 1215 by injection molding.

[0106] In order to protect the first ear hook housing 121, the first ear hook housing 121 may be covered with an ear hook elastic coating 1223 after S200, as follows:

[0107] S210 : The earhook elastic coating 1223 is coated on the first earhook shell 121 by injection molding, and the outer hole section 1215 is covered.

[0108] S300: The first ear hook shell 121 and the second ear hook shell 123 are spliced ​​together through the engagement of the first card slot 1211 and the first card block 1231 .

[0109] The molding methods and steps in other structures of the ear hook component 12 can be manufactured using existing molding methods based on the specific structure of the ear hook component 12, and will not be described in detail here.

[0110] In order to better reduce the volume of the ear hook assembly 12, the positions of the components in the accommodating space 120 can be replaced or reset, so that the accommodating space 120 can be effectively compressed, thereby reducing the volume of the ear hook shell. If the power jack 1233 of the bone conduction earphone 1 is arranged on the side of the second ear hook shell 123 away from the bottom wall 1112 of the first ear hook shell 121, the volume of the ear hook assembly 12 will be increased. In order to effectively reduce the volume of the ear hook assembly 12, the power jack 1233 is arranged on the side wall 1113 of the second ear hook shell 123 away from the connecting part 122 in this embodiment, which can be described in detail as follows:

[0111] like Figure 12 to Figure 14 As shown, a power jack 1233 is provided in a portion of the second ear hook shell 123 away from the connecting part 122. The power jack 1233 is connected to the accommodating space 120, and the power jack 1233 is used to accommodate the power interface 152. For example, the second ear hook shell 123 may also have a shell bottom and a shell side, and the shell side surrounds and connects the shell bottom to form a second sub-accommodating space 1230. One side edge of the shell side away from the shell bottom serves as a splicing edge 1202 for splicing with the first ear hook shell 121. The power jack 1233 is provided on the shell side, connected to the second sub-accommodating space 1230, that is, connected to the accommodating space 120.

[0112] like Fig.14As shown, the second card block 1232 is disposed adjacent to the power jack 1233. That is, the second card block 1232 is protrudingly disposed on a portion of the second ear hook housing 123 away from the connecting component 122, and faces the accommodating space 120. In this embodiment, the second card block 1232 is closer to the accommodating space 120 than the power jack 1233. In other words, the second card block 1232 is closer to the connecting component 122 than the power jack 1233.

[0113] Optionally, the projections of the second card block 1232 and the power jack 1233 on the first reference plane perpendicular to the length direction overlap with each other. In the present embodiment, overlapping each other includes partial overlap (that is, the overlapping part is a part of the projection of the second card block 1232 and also a part of the projection of the power jack 1233), and also includes full overlap (that is, the projection of the second card block 1232 completely falls into the projection of the power jack 1233). Optionally, taking the plane perpendicular to the length direction as the first reference plane, the projection of the second card block 1232 on the first reference plane is located within the projection of the power jack 1233 on the first reference plane, that is, the projection ranges of the two completely overlap. By setting the positions of the second card block 1232 and the power jack 1233 in this way, the structure of the second ear hook shell 123 can be made compact without affecting the installation of the power interface 152, thereby reducing the volume of the ear hook assembly 12.

[0114] Optionally, the projections of the second card block 1232 and the power jack 1233 on the second reference plane perpendicular to the splicing direction overlap with each other. The overlap here also includes partial overlap and full overlap. Optionally, taking the plane perpendicular to the splicing direction as the second reference plane, the projection of the second card block 1232 on the second reference plane is also located within the projection of the power jack 1233 on the second reference plane, that is, the projection ranges of the two also completely overlap. In this way, the second card block 1232 and the power jack 1233 can be more compact in both the splicing direction and the length direction, and the space occupied by the power jack 1233 and the second card block 1232 can be saved to a large extent, so as to improve the structural compactness of the ear hook assembly 12.

[0115] In addition, when the bone conduction earphone 1 is used in industrial and other manufacturing fields, there is a great demand for the control experience of the bone conduction earphone 1. The power jack 1233 is opened in the part of the second ear hook shell 123 away from the connecting component 122 to improve the operation experience of the bone conduction earphone 1. The reasons are as follows:

[0116] The bone conduction earphone 1 generally has a volume button, etc. According to existing conventional means, the button hole 1235 and the power jack 1233 corresponding to the button 153 are generally opened at the bottom of the shell of the second ear hook shell 123, that is, the part of the shell of the second ear hook shell 123 away from the first ear hook shell 121. Since the area of ​​the bottom of the shell is relatively limited, the button hole 1235 and the power jack 1233 are relatively compact, and the button hole 1235 and the power jack 1233 occupy as little space as possible. In the industrial and other manufacturing fields, the wearer may wear work clothes or gloves, etc., and the button hole 1235 is small and arranged too compactly, which will lead to a decrease in the wearer's control experience and easily cause misoperation. In this embodiment, the power jack 1233 is not opened on the bottom of the shell, but on the side of the shell, so the size of the button hole 1235 can be designed to be larger, and the arrangement between each other can be relatively loose, so that it is convenient for the user to operate and reduce the occurrence of misoperation.

[0117] In addition, based on the design of the power jack 1233, if the second card block 1232 is set at the second ear hook housing 123 adjacent to the power jack 1233 and toward the top position of the first ear hook housing 121 (such as Fig.13 The platform area connected to the second card block 1232 as shown, that is, the second card block 1232 can be regarded as extending from the platform area into the second sub-accommodation space 1230), will squeeze the space of the connector 1218 of the first ear hook shell 121, and thus affect the connection and matching between the ear hook component 12 and the rear hook component 13. The second card block 1232 needs to occupy additional space, which will cause the splicing of the first ear hook shell 121 and the second ear hook shell 123 in the splicing direction to occupy a larger space, which is not compact enough. Therefore, in this embodiment, by setting the power jack 1233 at the bottom of the shell of the second ear hook shell 123, and setting the structural relationship between the second card block 1232 and the power jack 1233 according to the above-mentioned projection relationship, the second ear hook shell 123 is more compact in the splicing direction. The second card block 1232 extends toward the accommodating space 120 and does not need to occupy additional space, thereby miniaturizing the volume of the ear hook component 12.

[0118] Based on the above detailed description, the stable splicing structure between the first ear hook shell 121 and the second ear hook shell 123 can protect the battery assembly 14 and the control circuit assembly 15 in the accommodating space 120. Of course, in order to reduce the failure rate of the bone conduction headset 1, it is necessary not only to ensure the stability of the structure but also to ensure the stability of the electrical connection. The wire group in the bone conduction headset 1 is routed between the speaker assembly 11 and the ear hook assembly 12, and the stability of the routing is related to the reliability of the bone conduction assembly. In order to improve the reliability of the routing, the ear hook assembly 12 can be provided with a corresponding wire clamping structure to ensure the stability of the wire when the wire group passes through the ear hook assembly 12. For details, please refer to the following description.

[0119] The connecting component 122 may include an ear hook elastic wire 1221 and a joint portion 1222 connected to one end of the ear hook elastic wire 1221. In order to protect the ear hook elastic wire 1221, the connecting component 122 may also include an ear hook elastic coating 1223 (such as an ear hook elastic coating 1223) at least covering the outer periphery of the ear hook elastic wire 1221. Fig.12 Of course, the ear hook elastic wire 1221 can further cover the first ear hook shell 121. The joint part 1222 is used for plugging and matching with the speaker assembly 11. The other end of the ear hook elastic wire 1221 is connected to the first ear hook shell 121.

[0120] like Fig.15 and Fig.16 As shown, the connector portion 1222 has a first wire clamping portion 1224, and the first ear hook shell 121 has a second wire clamping portion 1219. The lead wire group led out through the speaker assembly 11 can enter the accommodating space 120 through the first wire clamping portion 1224 and the second wire clamping portion 1219 in sequence. The first wire clamping portion 1224 and the second wire clamping portion 1219 are used to clamp the lead wire group in the radial direction of the lead wire group, thereby reducing the shaking of the lead wire group in its radial direction.

[0121] The lead set clamped by the first wire clamping part 1224 and the second wire clamping part 1219 can be an additional component such as an auxiliary titanium wire used in the preparation process of the ear hook component 12. Specifically, in the preparation process of the ear hook component 12, it is necessary to use an auxiliary titanium wire to form a lead channel in the ear hook elastic coating 1223. Therefore, in the preparation process, the auxiliary titanium wire is sequentially passed through the first wire clamping part 1224, the second wire clamping part 1219 and enters the accommodating space 120. After the preparation is completed, the auxiliary titanium wire is pulled out to form a lead channel connecting the receiving space 110 and the accommodating space 120. The first wire clamping part 1224 and the second wire clamping part 1219 can maintain the stability of the auxiliary titanium wire and reduce the shaking of the auxiliary titanium wire so that the glue position can be more stable.

[0122] Optionally, the lead wire channel can be arranged in parallel with the ear hook elastic metal wire 1221 in the ear hook elastic coating 1223.

[0123] The lead wire group that is clamped by the first wire clamping portion 1224 and the second wire clamping portion 1219 can be a wire group that is passed through after the lead wire channel is formed for electrical connection. That is, the wire group led out through the speaker assembly 11 enters the accommodating space 120 through the first wire clamping portion 1224 and the second wire clamping portion 1219. Specifically, the shaking of the wire group before and after entering the lead wire channel also needs to be reduced, so that the lead wire efficiency can be improved. In addition, since the ear hook assembly 12 is used to be hung on the human ear, it is generally arranged in an arc shape, and the wire group passing through the ear hook assembly 12 is often prone to shaking or moving, etc., and the first wire clamping portion 1224 and the second wire clamping portion 1219 can reduce the shaking of the wire group.

[0124] Specifically, the ear hook elastic coating 1223 is formed with a lead wire channel (not shown). The wire group led out through the speaker assembly 11 can enter the accommodating space 120 through the first clamping wire portion 1224, the lead wire channel and the second clamping wire portion 1219 in sequence. In this embodiment, if the speaker assembly 11 is also connected to the stick microphone assembly 16, the wire group led out through the speaker assembly 11 can include the wire group of the speaker 113 and the wire group of the stick microphone assembly 16. If the speaker assembly 11 is not connected to the stick microphone assembly 16, the wire group led out through the speaker assembly 11 includes the wire group of the speaker 113.

[0125] In this embodiment, by respectively providing a first wire clamping portion 1224 and a second wire clamping portion 1219 on the joint portion 1222 and the first ear hook shell 121, on the one hand, it can stop the movement of the auxiliary titanium wire relative to the first ear hook shell 121 and the joint portion 1222 during the preparation process, so that the glue position of the ear hook component 12 is more uniform, thereby improving the yield rate; on the other hand, it can stop the movement of the wire group in its radial direction, thereby reducing the shaking of the wire group, making the wire group threading more efficient, and also making the structure of the wire group in the actual product more stable, thereby ensuring the stability of the electrical connection.

[0126] Specifically, the first clamping portion 1224 may have two first sub-clamping portions 12241 arranged at intervals in the thickness direction. Fig.16 As shown, the two first sub-cable clamping portions 12241 are staggered with each other in the length direction of the lead set. The two first sub-cable clamping portions 12241 can stop the lead set in the thickness direction when the lead set passes between the two first sub-cable clamping portions 12241, thereby limiting the movement of the lead set in the thickness direction. Optionally, the two first sub-cable clamping portions 12241 have different extension lengths in the length direction of the lead set.

[0127] The second wire clamping portion 1219 may have two second sub-wire clamping portions 12191 arranged at intervals in the thickness direction, and the two second sub-wire clamping portions 12191 are arranged opposite to each other. The two second sub-wire clamping portions 12191 may stop the lead group in the thickness direction when the lead group passes between the two second sub-wire clamping portions 12191, thereby limiting its movement in the thickness direction.

[0128] In addition, the first wire clamping portion 1224 can be formed by a depression in the joint portion 1222, and the second wire clamping portion 1219 can be formed by a depression on the first ear hook shell 121, so that the wire group can be seen at the first wire clamping portion 1224 and the second wire clamping portion 1219, thereby reducing the distance the wire group is passed through in the invisible area, facilitating the passing of the wire group, and improving the wiring efficiency.

[0129] In order to facilitate the connection of the joint portion 1222 to the second through hole 1111 of the first speaker housing 111 and enhance the connection stability between the two, as shown in FIG. Fig.16 As shown, the end 12221 of the joint part 1222 may be formed with two through grooves 1225 that intersect each other to divide the end 12221 into four sub-ends. By providing two through grooves 1225 that intersect each other to divide the end 12221 into four sub-ends, the elasticity of the end 12221 can be enhanced, so that the four sub-ends can be squeezed and can be elastically restored, so that when the joint part 1222 is inserted into the second through hole 1111, the four sub-ends are squeezed and brought close to each other, so that the end 12221 becomes smaller, which facilitates the insertion of the joint part 1222 into the second through hole 1111.

[0130] The outer periphery of the sub-end portion may be provided with a protrusion 1226. The joint portion 1222 is inserted into the speaker assembly 11 and the protrusion 1226 is stopped by the speaker assembly 11 to limit the movement of the joint portion 1222 away from the speaker assembly 11. Specifically, after the joint portion 1222 is inserted into the second through hole 1111, the four sub-end portions elastically recover, so that the protrusion 1226 on the outer periphery of the sub-end portion can be stopped by the speaker assembly 11, thereby improving the connection reliability between the ear hook assembly 12 and the speaker assembly 11.

[0131] Specifically, the joint portion 1222 is inserted into the second through hole 1111 , the protrusion 1226 may be located in the receiving space 110 , and the protrusion 1226 is stopped at the edge of the connection between the second through hole 1111 and the receiving space 110 .

[0132] The ear hook elastic wire 1221 may be made of spring steel, titanium, other metals or non-metallic materials. The ear hook elastic coating 1223 may be made of silicone, rubber, plastic or other materials. The ear hook elastic coating 1223 covers the ear hook elastic wire 1221, and may further cover the first ear hook shell 121 and the second ear hook shell 123, and may cover the second clamping line portion 1219. Of course, the power jack 1233 and the like may be exposed. The ear hook elastic coating 1223 may also cover at least part of the connector portion 1222, and may cover the first clamping line portion 1224.

[0133] like Fig.17 As shown, the rear hanging assembly 13 may include a rear hanging elastic wire 131, a rear hanging elastic coating 132 coated on the rear hanging elastic wire 131, and an insertion portion 133 disposed at both ends of the rear hanging elastic wire 131. The rear hanging elastic coating 132 may also cover at least a portion of the insertion portion 133.

[0134] The insertion portion 133 is used for plugging and matching with the ear hook assembly 12. Specifically, a plug hole 1218 connected to the accommodating space 120 is provided on one side of the first ear hook shell 121 away from the connecting part 122. The plug hole 1218 and the second card slot 1212 are arranged adjacent to each other. The insertion portion 133 can be plugged and matched with the plug hole 1218. At least one insertion portion 133 is provided with two groups of slots 1331 spaced apart in its length direction. That is, at least one insertion portion 133 is provided with two groups of slots 1331 spaced apart in the length direction of the insertion portion 133, and each group of slots 1331 includes at least one slot 1331. The rear hanging elastic metal wire 131 is inserted into the insertion portion 133 through one end of the insertion portion 133. One group of slots 1331 is adjacent to the insertion portion 133, and the other group of slots 1331 is away from one end of the insertion portion 133.

[0135] Optionally, the insertion portion 133 is provided with the above two groups of slots 1331 in sequence from one end of the insertion portion 133 to the other end of the insertion portion 133. The slots 1331 close to one end of the insertion portion 133 are used for mold positioning. The slots 1331 away from one end of the insertion portion 133 are used for snap-fitting with the first ear hook housing 121.

[0136] For example, the two groups of slots 1331 are divided into a first group of slots 1331 and a second group of slots 1331. The first group of slots 1331 is away from one end of the insertion portion 133 and is used for snap-fitting with the ear hook assembly 12. Fig.17 and 18As shown, the first ear hook housing 121 is provided with a protruding clamping portion 12181. For example, the first ear hook housing 121 is provided with a protruding clamping portion 12181 in the socket 1218. The insertion portion 133 is inserted into the socket 1218 and the clamping portion 12181 is embedded in the first group of slots 1331, thereby limiting the relative movement of the ear hook component 12 and the rear hook component 13.

[0137] The second slot 1331 is close to one end of the insertion part 133 and is used for mold positioning. That is, the second set of slots 1331 is used to cooperate with the corresponding protruding structure on the mold, thereby accurately fixing the insertion part 133 at a certain position, so that other processes can be performed on it to improve the yield rate. For example, the second set of slots 1331 is used to position the insertion part 133 and the rear hanging elastic metal wire 131, and then the rear hanging elastic coating 132 can be formed by injection molding.

[0138] Optionally, the slots 1331 extend from the edges of the insertion portion 133 located on both sides of the central axis toward the central axis. Each group of slots 1331 includes two slots 1331, and the two slots 1331 of each group are arranged opposite to each other.

[0139] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A bone conduction headset, characterized in that: include: Speaker assembly; An ear hook assembly, the ear hook assembly is connected to the speaker assembly and is used to be hung on the ear of the user; The ear hook assembly includes a first ear hook shell, a connecting component and a second ear hook shell, one end of the connecting component is connected to the first ear hook shell, the other end of the connecting component is plugged and matched with the speaker assembly, and the first ear hook shell and the second ear hook shell are matched and connected to form an accommodating space; The accommodating space has a length direction and a thickness direction that are perpendicular to each other. The first ear hook shell and the second ear hook shell are spliced ​​with each other along a splicing direction that is perpendicular to the length direction and the thickness direction. The first ear hook shell is provided with a first card slot and a second card slot having the same opening direction at intervals along the length direction. The second ear hook shell is provided with a first card block and a second card block having the same extension direction protruding along the length direction. The first card block is embedded in the first card slot, and the second card block is embedded in the second card slot to limit the relative movement of the first ear hook shell and the second ear hook shell in the splicing direction and the thickness direction. The splicing edges of the first ear hook shell and the second ear hook shell fit with each other to limit the relative movement of the first ear hook shell and the second ear hook shell in the length direction.

2. The bone conduction earphone according to claim 1, characterized in that: The first card slot and the second card slot are respectively located on both sides of the first ear hook shell along the length direction, the opening direction of the first card slot is toward the accommodating space, and the opening direction of the second card slot is away from the accommodating space, the first card block and the second card block are respectively located on both sides of the second ear hook shell along the length direction, the extension direction of the first card block is away from the accommodating space, and the extension direction of the second card block is toward the accommodating space.

3. The bone conduction earphone according to claim 2, characterized in that: The splicing edge of the first ear hook shell is provided with a first stop portion, and the splicing edge of the second ear hook shell is provided with a second stop portion, and the first stop portion and the second stop portion fit together to limit the relative movement of the first ear hook shell and the second ear hook shell in the length direction.

4. The bone conduction earphone according to claim 3, characterized in that: The first card slot is disposed on a side of the first ear hook shell close to the connecting component, and the second card slot is disposed on a side of the first ear hook shell away from the connecting component.

5. The bone conduction earphone according to claim 4, characterized in that: A power jack is provided in a portion of the shell of the second ear hook shell away from the connecting component, and the power jack is connected to the accommodating space. The power jack is used to accommodate a power interface. The second card block is arranged adjacent to the power jack, and the second card block is closer to the accommodating space than the power jack. The projections of the second card block and the power jack on a first reference plane perpendicular to the length direction overlap with each other.

6. The bone conduction earphone according to claim 5, characterized in that: Projections of the second card block and the power socket on a second reference plane perpendicular to the splicing direction overlap with each other.

7. The bone conduction earphone according to claim 5, characterized in that: The first ear hook shell is provided with an outer hole section and an inner hole section which are connected to each other in a direction from outside the accommodating space to inside the accommodating space, the outer hole section is filled with a filling piece, and the inner hole section serves as the first card slot.

8. The bone conduction earphone according to claim 7, characterized in that: A cross-sectional area of ​​the outer hole segment perpendicular to a communication direction between the outer hole segment and the inner hole segment is greater than a cross-sectional area of ​​the inner hole segment perpendicular to a communication direction between the outer hole segment and the inner hole segment.

9. The bone conduction earphone according to claim 4, characterized in that: The connecting component includes an earhook elastic metal wire, a joint portion connected to one end of the earhook elastic metal wire, and an earhook elastic coating that at least covers the earhook elastic metal wire, the joint portion is used to be plugged and matched with the speaker assembly, the joint portion has a first wire clamping portion, the first earhook shell has a second wire clamping portion, the earhook elastic coating forms a lead channel, the lead group led out from the speaker assembly enters the accommodating space through the first wire clamping portion, the lead channel and the second wire clamping portion in sequence, the first wire clamping portion and the second wire clamping portion are used to clamp the lead group in the radial direction of the lead group.

10. The bone conduction earphone according to claim 9, characterized in that: The first wire clamping portion has two first sub-wire clamping portions arranged at intervals in the thickness direction, and the two first sub-wire clamping portions are staggered with each other in the length direction of the lead group; the second wire clamping portion has two second sub-wire clamping portions arranged at intervals in the thickness direction, and the two second sub-wire clamping portions are arranged opposite to each other.

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