Speaker assemblies and earphones

Abstract

This application discloses a speaker assembly and an earphone. The speaker assembly includes a housing assembly, a bone conduction speaker, and an air conduction speaker. The housing assembly includes a main housing for forming a housing space with one end open. The bone conduction speaker includes a core housing and a transducer device. The core housing is rotatably supported by the main housing and a portion of it is located within the housing space. The core housing is provided with a mounting space, the volume of which is smaller than the volume of the housing space. The transducer device is installed within the mounting space. The core housing is provided with a sound guide hole communicating with the mounting space. The speaker assembly according to this application has superior acoustic performance as described above.

Description

Technical Field

[0001] This application relates to the technical field of earphones, and particularly to speaker assemblies and earphones.

Background Art

[0002] As electronic devices continue to spread, electronic devices have become indispensable social and entertainment tools in people's daily lives, and people's requirements for electronic devices are also increasing. Electronic devices such as earphones are widely applied in people's daily lives. By being used together with terminal devices such as mobile phones and computers, users can enjoy an auditory feast. According to the operating principle of earphones, they are generally divided into air-conduction earphones and bone-conduction earphones. According to the user's earphone wearing method, they are generally divided into headphones, ear-hook type earphones, and canal type earphones. According to the interaction method between earphones and electronic devices, they are generally divided into wired earphones and wireless earphones.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The speaker assembly and earphone according to the embodiments of this application can improve the acoustic performance of the speaker assembly.

Means for Solving the Problems

[0004] According to a first aspect, an embodiment of the present application provides a speaker assembly. The speaker assembly includes a housing assembly and a bone conduction speaker. The housing assembly is provided with a housing space, and the bone conduction speaker includes a core housing and a transducer device, the core housing being supported by the housing assembly and at least a portion of which is located within the housing space, the core housing being provided with a mounting space, the volume of which is smaller than the volume of which is housing space, the transducer device being installed within the mounting space, the core housing being provided with a first sound port communicating with the mounting space, the housing assembly being provided with a second sound port communicating with the first sound port, the first sound port communicating with the outside through the second sound port.

[0005] Preferably, the first sound duct and the second sound duct each communicate with a housing space located on the outer periphery of the core housing.

[0006] Preferably, the housing assembly includes a passage member in which a sound-conducting passage is formed, the passage member is located within the housing space, both ends of the sound-conducting passage communicate with a first sound-conducting hole and a second sound-conducting hole, respectively, and the volume of the sound-conducting passage is smaller than the volume of the housing space located on the outer periphery of the core housing.

[0007] Preferably, the housing assembly includes a main housing with one end open and a main cover covering the open end of the main housing, a core housing supported by the main housing, the main cover having an opening communicating with a housing space, the bone conduction speaker including a vibration transmission plate, the vibration transmission plate connected to a transducer device, at least a portion of which protrudes outward from the opening and is in close contact with a person's face, and at least a portion of the passage member is located in the main cover.

[0008] Preferably, the passage member includes a first passage located in the main cover and a second passage located in the main housing, and when the main cover and the main housing are assembled, the first passage and the second passage engage with each other to form a sound-conducting passage.

[0009] Preferably, the first and second sound guide holes are positioned opposite each other along the radial direction of the transducer device.

[0010] Preferably, the number of first sound ducts is multiple, and the multiple first sound ducts are spaced apart along the circumferential direction of the core housing on the circumferential sidewall of the core housing, and / or The number of second sound ducts is multiple, and the multiple second sound ducts are spaced apart along the circumferential direction of the housing assembly on the circumferential sidewalls of the housing assembly.

[0011] Preferably, the speaker assembly further includes an air conduction speaker having a first sound outlet, the housing assembly having a second sound outlet communicating with a housing space, the first sound outlet and the second sound outlet being spaced apart, the air conduction speaker being installed in the housing space and radiating sound outward from the first sound outlet, the housing assembly having an opening communicating with the housing space, the bone conduction speaker including a vibration transmission plate, the vibration transmission plate being connected to a transducer device and at least a portion of which protrudes outward from the opening and is in close contact with a person's face, and when observed along the vibration direction of the vibration transmission plate, the second sound outlet is located between the vibration transmission plate and the tragus.

[0012] Preferably, the housing assembly further includes a main housing and a main cover, the core housing being supported by the main housing, the main housing including a bottom wall and a circumferential side wall connected to the bottom wall, forming an open-ended housing space, the main cover covering the open end of the main housing, the second sound vent being installed in the main cover, the opening being installed in the main cover, and the core housing and vibration transmission plate being at least partially exposed from the opening.

[0013] Preferably, the air conduction speaker is inserted into the housing space from the open end of the main housing, and the air conduction speaker is further provided with a first pressure relief port, the first sound emission port and the first pressure relief port are located on opposite sides of each other along the insertion direction of the air conduction speaker into the main housing, and a second pressure relief port corresponding to the first pressure relief port is provided on the bottom wall.

[0014] Preferably, the core housing is rotatably supported by the housing assembly and is rotatable relative to the housing assembly along a predetermined axis of rotation, the vibration direction and axis of rotation of the air conduction speaker are parallel to each other, and the vibration direction and axis of rotation of the bone conduction speaker are perpendicular to each other.

[0015] According to a second aspect, an embodiment of the present application provides a speaker assembly. The speaker assembly includes a housing assembly, a bone conduction speaker, and an air conduction speaker. The housing assembly includes a main housing for forming a housing space with one end open. The bone conduction speaker includes a core housing and a transducer device. The core housing is rotatably supported by the main housing and a portion of it is located within the housing space. The core housing is provided with a mounting space, the volume of which is smaller than the volume of the housing space. The transducer device is installed within the mounting space. The core housing is provided with a sound port that communicates with the mounting space. When the speaker assembly is mounted, the sound port remains exposed to the open end of the main housing.

[0016] Preferably, the core housing includes a housing bottom wall and a housing periphery wall connected to the housing bottom wall, forming a mounting space, a portion of the housing periphery wall and the housing bottom wall are located within the housing space, and the housing periphery wall includes a portion that is exposed to the main housing from an open end when mounted, and the sound guide hole is located in the exposed portion.

[0017] Preferably, the main housing is provided with a first and second rotating shaft mechanism facing each other, and a third and fourth rotating shaft mechanism are provided correspondingly on opposite sides of the circumferential side wall of the housing, the third and fourth rotating shaft mechanisms are provided extending along a predetermined axis, the first rotating shaft mechanism engages with the third rotating shaft mechanism, and the second rotating shaft mechanism engages with the fourth rotating shaft mechanism to rotatably support the core housing in the main housing. The vibration direction of the transducer device is outward, directed towards the outside of the containment space, and in this outward direction, the sound guide hole is located above the third and fourth rotation axis mechanisms.

[0018] Preferably, there are four sound ducts, two on each side of the circumferential side wall of the housing, and the third rotation axis mechanism is located between the two sound ducts on the same side in the circumferential direction.

[0019] Preferably, the main housing includes a bottom wall and a circumferential wall connected to the bottom wall, forming a housing space; the bone conduction speaker includes a vibration transmission plate and a first vibration transmission sheet; the transducer device includes a bracket, the first vibration transmission sheet connects the bracket to the core housing, elastically suspending the transducer device within the mounting space; a through-hole is provided in the bottom wall of the housing, facing the bracket, the through-hole communicates the mounting space and the housing space; the bracket is fitted into the vibration transmission face-contact assembly along the distance direction between the bracket and the bottom wall; the through-hole is provided so as to allow a support fixture to be inserted into the mounting space through the through-hole to support the bracket when the bracket is fitted into the vibration transmission face-contact assembly.

[0020] Preferably, when observed along the vibration direction of the transducer device, the bone conduction speaker has a long axis and a short axis, the dimension along the long axis of the bone conduction speaker is larger than the dimension along the short axis of the bone conduction speaker, the number of through holes is two, and the two through holes are spaced apart along the long axis.

[0021] Preferably, the bottom wall of the housing is further provided with mounting holes adjacent to the inner wall surface of the circumferential side wall of the housing, the mounting holes are spaced apart from the through holes, the mounting holes connect the mounting space and the housing space, and the mounting holes are positioned to allow the acoustic resistance mesh to be inserted from the mounting holes into the mounting space, making it tightly attached to the inner wall surface of the circumferential side wall of the housing and covering the sound guide holes.

[0022] Preferably, the mounting holes are positioned in accordance with the sound guide holes, and the mounting holes and the corresponding sound guide holes are in close proximity to each other on both sides of the connection edge between the housing bottom wall and the housing periphery wall.

[0023] According to a third aspect, an embodiment of the present application provides an earphone, the earphone comprising a mounting assembly and the speaker assembly, the mounting assembly being fixedly connected to a housing assembly.

[0024] As a beneficial effect of the present application, different from the prior art, a core housing for accommodating a transducer device is provided, and a housing assembly is used to accommodate the core housing and other parts. With such an arrangement, the small mounting space is spaced apart from the large accommodation space by the core housing, and the resonance frequency between the sound wave generated by the transducer device and the core housing with a small mounting space becomes relatively high. In such a situation, the sound wave generated by the transducer device is less likely to resonate with the core housing. In this way, the present application can improve the sound leakage phenomenon of the speaker assembly and improve the sound quality effect of the speaker assembly. When the first sound guide hole and the second sound guide hole are used to communicate the mounting space with the outside, the air pressure change caused by the vibration of the transducer device in the mounting space can be balanced by the first sound guide hole and the second sound guide hole. In some cases, since the sound conducted from the transducer device to the outside through the first sound guide hole and the second sound guide hole is in the opposite phase to the sound leakage generated by the transducer device, the sound leakage and the sound radiated from the first sound guide hole and the second sound guide hole can cancel each other out, thereby improving the sound leakage phenomenon of the speaker assembly.

[0025] The drawings here are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application and explaining the principles of the present application together with the specification. Also, these drawings and descriptions are not intended to limit the scope of the concept of the present application in any way, but are for explaining the concept of the present application to those skilled in the art by referring to specific embodiments.

Brief Description of the Drawings

[0026] [Figure 1] It is a schematic diagram showing the three-dimensional structure of an embodiment of the earphone according to the present application. [Figure 2] It is a schematic diagram showing the exploded structure of the earphone shown in FIG. 1. [Figure 3] It is a schematic configuration diagram when the earphone according to the present application is in a worn state. [Figure 4]Figure 1 is a schematic diagram showing the three-dimensional structure of the speaker assembly in the front direction. [Figure 5] Figure 1 is a schematic diagram showing the three-dimensional structure of the speaker assembly in the rear direction. [Figure 6] Figure 1 is a schematic diagram showing the disassembled structure of the speaker assembly. [Figure 7] Figure 5 is a schematic cross-sectional view of the speaker assembly in direction A. [Figure 8] Figure 6 is a schematic diagram showing the disassembled structure of a bone conduction speaker in the speaker assembly shown. [Figure 9] Figure 8 is a schematic front view of the rigid support member. [Figure 10] Figure 8 is a schematic diagram showing the three-dimensional structure of the rigid support member. [Figure 11] Figure 6 is a schematic cross-sectional diagram of the bone conduction speaker in the speaker assembly shown. [Figure 12] Figure 8 is a schematic diagram showing the three-dimensional structure of the diaphragm. [Figure 13] Figure 8 is a schematic cross-sectional view of the rigid bracket in the longitudinal direction. [Figure 14] Figure 8 is a schematic diagram showing the three-dimensional structure of the core housing in the front direction. [Figure 15] Figure 6 is a schematic diagram showing the three-dimensional structure of the main housing. [Figure 16] Figure 6 is a schematic front view of the main housing. [Figure 17] Figure 6 is a schematic diagram showing the three-dimensional structure of an air conduction speaker. [Figure 18] Figure 8 is a schematic diagram showing the three-dimensional structure in the bottom direction of the core housing. [Figure 19] This is a schematic diagram of one embodiment of the speaker assembly according to the present invention. [Figure 20] This is a schematic diagram of another embodiment of the speaker assembly according to the present invention. [Figure 21]This is a schematic diagram of the core housing relating to the present invention. [Figure 22] Figure 21 is a schematic diagram of the core housing viewed from a different angle. [Figure 23] Figure 21 is a schematic diagram of the core housing viewed from yet another angle. [Figure 24] This is a schematic diagram of yet another embodiment of the speaker assembly according to the present invention. [Modes for carrying out the invention]

[0027] The technical means in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application, but obviously the embodiments described are only a selection of embodiments of the present application, not all embodiments. All other embodiments that a person skilled in the art can obtain based on the embodiments of the present application without creative work are all included in the scope of protection of the present application.

[0028] Furthermore, terms such as “first,” “second,” etc., in this application are intended to distinguish different subjects and not to describe a specific order. Also, terms such as “includes,” “has,” and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not limited to the listed steps or units, but preferably includes further steps or units not listed, or preferably includes other steps or units specific to these processes, methods, products, or apparatus.

[0029] The following describes an exemplary structure of earphone 1 in relation to the present invention.

[0030] As shown in Figure 1, the earphone 1 may include a mounting assembly 2, a speaker assembly 3, and a stick microphone assembly 7. There are two speaker assemblies 3. The two speaker assemblies 3 transmit vibrations and / or sound to the user's left and right ears, respectively. The two speaker assemblies 3 may be the same or different. For example, a stick microphone assembly 7 may be installed in one speaker assembly 3, while a stick microphone assembly 7 is not installed in the other speaker assembly 3.

[0031] As shown in Figure 2, the mounting assembly 2 may include a headband assembly 21, a stretch assembly 22, and a twist assembly 23, the number of twist assemblies 23 may be two, and the number of stretch assemblies 22 may also be two. Both ends of the headband assembly 21 are connected one-to-one to two stretch assemblies 22, and the two stretch assemblies 22 are connected one-to-one to two twist assemblies 23. The two twist assemblies 23 are connected one-to-one to two speaker assemblies 3. The headband assembly 21 bypasses the top of the user's head, and the shape of the headband assembly 21 conforms to the contour of the user's head, so that the user can get a more comfortable and stable fit when wearing the headband assembly 21. Furthermore, the headband assembly 21 elastically grips both sides of the user's head. The telescopic assembly 22 can extend and retract to change its own length, thereby changing the distance between the headband assembly 21 and the speaker assembly 3, and adaptively adjusting according to the shape of the user's head, thereby positioning the speaker assembly 3 in the appropriate location and improving the compatibility of the wearing assembly 2. The twisting assembly 23 can generate elastic twisting, and when worn, the speaker assembly 3 can generate twisting by contacting the user's head, allowing the speaker assembly 3 to be closer to the user's face or positioned near the ears.

[0032] As shown in Figure 2, the headband assembly 21 may include a clamping assembly 210 and a first elastic covering 212. The clamping assembly 210 may include an elastic sheet to achieve an elastic clamping function. The first elastic covering 212 may include a covering body 2121 and an elastic band 2122 integrally molded with the covering body 2121. The covering body 2121 covers the outer circumference of the clamping assembly 210 and the conductor by a molding method. Both ends of the elastic band 2122 are spaced apart from each other along the length of the clamping assembly 210 and are connected to the covering body 2121. Between the connection points between both ends of the elastic band 2122 and the covering body 2121, the elastic band 2122 and the covering body 2121 are spaced apart from each other, and when worn, the elastic band 2122 assists in positioning the clamping assembly 210 on the user's head.

[0033] As shown in Figure 2, the telescopic assembly 22 may include a fixed portion 221 and a telescopic portion 223 that is telescopically mounted relative to the fixed portion 221, and both ends of the clamping assembly 210 may be fixed to the corresponding fixed portion 221, for example, by swivel fixing. The telescopic assembly 22 may also include a decorative portion 224, and a sliding groove 2203 may be provided in the fixed portion 221, and the telescopic portion 223 may be slidably mounted within the sliding groove 2203, and the decorative portion 224 and the fixed portion 221 are fixed together (for example, covering each other) and cover the sliding groove 2203 and the portion of the telescopic portion 223 located within the sliding groove 2203.

[0034] As shown in Figure 2, the torsion assembly 23 may include an elastic connecting member 231, a second elastic covering 232, and first and second insertion portions 233 and 234 installed at both ends of the elastic connecting member 231. The elastic connecting member 231 is schematically shown by a dotted line in Figure 2. The second elastic covering 232 covers the outer circumference of the elastic connecting member 231 by a molding method, and the conductor may be inserted into the second elastic covering 232. The first insertion portion 233 is inserted into the insertion hole 310 of the speaker assembly 3, and the second insertion portion 234 is inserted into the insertion hole (not shown) of the expandable portion 223.

[0035] As shown in Figure 2, the speaker assembly 3 may include a housing assembly 30, a bone conduction speaker 40, and an air conduction speaker 50. The speaker assembly 3 may also include at least one of a battery 61 and a control circuit board 62. The housing assembly 30 houses the bone conduction speaker 40 and the air conduction speaker 50, with the bone conduction speaker 40 making close contact with the user's face and the air conduction speaker 50 transmitting air conduction sound waves to the user's ear canal. When the earphone 1 is attached to the user's head, the attachment assembly 2 can position the speaker assembly 3 in the face area in front of the user's tragus.

[0036] As shown in Figure 2, the housing assembly 30 may include a main housing 31 and a main cover 32. The main housing 31 may have an open end, and the main cover 32 covers the open end of the main housing 31. The main cover 32 may be provided with a sound outlet (not shown) for radiating sound from the air conduction speaker 50. Part of the bone conduction speaker 40 may be exposed from the open end of the main housing 31 and make close contact with the user's face. The vibration directions of the bone conduction speaker 40 and the air conduction speaker 50 may be perpendicular to each other, and they are assembled in the main housing 31 so that their vibration directions are perpendicular to each other to reduce mutual interference between the bone conduction speaker 40 and the air conduction speaker 50. For comfort of face contact, the bone conduction speaker 40 may be provided with a face contact support assembly 44. When worn, the face contact support assembly 44 increases the contact area between the bone conduction speaker 40 and the user's face, improving wearing comfort. The face-contact support assembly 44 may include a rigid support member 441 and a flexible contact member 442. The rigid support member 441 supports the flexible contact member 442, improving the structural strength and stability of the face-contact support assembly 44. The flexible contact member 442 moves toward the user's face and adheres to the user's face, and with the support of the rigid support member 441, it can adhere to the user's face more stably.

[0037] As shown in Figure 2, the speaker assembly 3 may include at least one of the control circuit board 62 and the battery 61. For example, one speaker assembly 3 may include the control circuit board 62, while the other speaker assembly 3 may not include the control circuit board 62 and instead include the battery 61. The connecting wires between the two speaker assemblies 3 may be inserted across the mounting assembly 2. For example, one speaker assembly 3 may include both the control circuit board 62 and the battery 61. Alternatively, there may be two control circuit boards 62, and each speaker assembly 3 may include one control circuit board 62. There may also be two batteries 61, and each speaker assembly 3 may include one battery 61.

[0038] The stick microphone assembly 7 is rotatably mounted on the speaker assembly 3. The stick microphone assembly 7 may include a stick body assembly 70, a microphone assembly 80, and a rotation axis mechanism 91, the microphone assembly 80 and the rotation axis mechanism 91 may be connected to both ends of the stick body assembly 70, and the rotation axis mechanism 91 is rotatably connected to the speaker assembly 3. When mounted, the rotation axis mechanism 91 rotates relative to the speaker assembly 3, thereby positioning the microphone assembly 80 in the sound pickup area of ​​the user's mouth. The microphone assembly 80 is equipped with at least one microphone and an associated button, which can be used to turn the microphone on or off.

[0039] In fields such as medicine and anatomy, three basic planes of the human body can be defined: the sagittal plane, the coronal plane, and the horizontal plane. Three basic axes can also be defined: the sagittal axis (SA), the coronal axis (CA), and the vertical axis (VA). The sagittal plane is a cross-section perpendicular to the ground, running along the anterior-posterior direction of the body, dividing the body into two parts: left and right. The coronal plane is a cross-section perpendicular to the ground, running along the lateral direction of the body, dividing the body into two parts: front and back. The horizontal plane is a cross-section parallel to the ground, running along the vertical direction of the body, dividing the body into two parts: upper and lower. Accordingly, the sagittal axis (SA) is the axis running along the anterior-posterior direction of the body and perpendicular to the coronal plane; the coronal axis is the axis running along the lateral direction of the body and perpendicular to the sagittal plane; and the vertical axis (VA) is the axis running along the vertical direction of the body and perpendicular to the horizontal plane. As shown in Figure 3, when the earphone 1 is worn, the mounting assembly 2 is held between the user's head on both sides, and the speaker assembly 3 is positioned in the anterior facial region of the tragus along the sagittal axis SA.

[0040] The following description details the earphone 1 or some of the elements and structures mentioned above. Naturally, some of the structures and elements mentioned above, such as the bone conduction speaker 40 and the air conduction speaker 50, are applicable not only to the earphone 1 but also to other electronic devices such as mobile phones, acoustic boxes, and smart wearable devices.

[0041] The following section primarily illustrates the structure of the speaker assembly 3 of earphone 1.

[0042] Preferably, as shown in Figures 2, 4, and 5, in some embodiments, the speaker assembly 3 may include a housing assembly 30 and a bone conduction speaker 40. Furthermore, as shown in Figures 6, 7, and 8, the bone conduction speaker 40 includes a core housing 41, a transducer device 42, a vibration transmission face contact assembly 43, and a face contact auxiliary assembly 44. The housing assembly 30 includes a main housing 31, the core housing 41 is supported by the main housing 31, and the transducer device 42 is installed inside the core housing 41. The vibration transmission face contact assembly 43 includes a diaphragm 431, which is connected to the transducer device 42 and, when worn, directly or indirectly contacts the user's face area anterior to the tragus. In the indirect contact embodiment, the face contact assist assembly 44 includes a rigid support member 441 and a flexible contact member 442. The rigid support member 441 is connected to the core housing 41 and, when observed along the vibration direction of the diaphragm 431, closes to surround the outer circumference of the diaphragm 431 along its circumferential direction, with the width WY1 of the rigid support member 441 toward the tragus being smaller than the width WY2 on the opposite side of the tragus. The flexible contact member 442 is installed on the rigid support member 441, with a notch 443 on the tragus-facing side of the flexible contact member 442, and partially surrounds the diaphragm 431 along its circumferential direction, with the flexible contact member 442 in contact with the face area on the outer circumference of the diaphragm 431 when worn.

[0043] Specifically, the bone conduction speaker 40 transmits sound to the user via bone conduction vibration. The transducer device 42 is a device that converts electrical signals into vibrations, is connected to the diaphragm 431, and drives the diaphragm 431 to vibrate based on the corresponding electrical signal. The direction of vibration of the diaphragm 431 is also called the bone conduction vibration direction z1, i.e., the direction of vibration of the bone conduction speaker 40, and in the worn state, the bone conduction vibration direction z1 is approximately parallel to the coronal axis of the human body. The diaphragm 431 is a main component of the vibration transmission face contact assembly 43, and when the earphone 1 is worn, the diaphragm 431 directly or indirectly contacts the user's face area in front of the tragus. Driven by the transducer device 42, the diaphragm 431 transmits sound to the user via bone conduction vibration.

[0044] Furthermore, the face-contact support assembly 44 plays an auxiliary support role. When worn, the face-contact support assembly 44 contacts the user's face area in front of the tragus and provides auxiliary support to the bone conduction speaker 40 along the bone conduction vibration direction z1. This effectively reduces the support pressure that the diaphragm 431 applies to the face along the vibration direction, further reducing the operating load of the transducer device 42, effectively improving the sound quality of the bone conduction speaker 40, and effectively improving the sound quality of the earphone 1. Also, when observed along the bone conduction vibration direction z1, the face-contact support assembly 44 surrounds the outer circumference of the diaphragm 431 along its circumferential direction. As a result, the entire outer circumference of the diaphragm 431 is auxiliaryly supported by the face-contact support assembly 44, effectively improving the positioning effect of the face-contact support assembly 44 on the diaphragm 431.

[0045] Furthermore, when observed along the vibration direction of the diaphragm 431, the width of the face-contact support assembly 44 on the side facing the tragus (the width of the face-contact support assembly 44 on the side facing the tragus is equal to the width WY1 of the rigid support member 441 on the side facing the tragus described above) is smaller than the width on the opposite side of the tragus (the width of the face-contact support assembly 44 on the opposite side of the tragus is equal to the width WY2 of the rigid support member 441 on the opposite side of the tragus described above). As a result, the entire diaphragm 431 can get closer to the user's tragus, which effectively improves the sound transmission effect of the bone conduction speaker 40, effectively improves the sound quality of the bone conduction speaker 40, and effectively improves the sound quality of the earphone 1.

[0046] Furthermore, the face-contact support assembly 44 includes a rigid support member 441 for rigid support and a soft contact member 442 that flexibly contacts the user's face. When worn, the face-contact support assembly 44 flexibly contacts the user's anterior facial area via the soft contact assembly while simultaneously providing rigid support via the rigid support member 441. This effectively ensures the support capacity of the face-contact support assembly 44 while simultaneously improving its flexibility, thereby effectively improving the wearing comfort of the earphone 1. The rigid support member 441 is closed along the circumferential direction of the diaphragm 431, surrounding the outer circumference of the diaphragm 431. In this way, the entire face-contact support assembly 44 is positioned to surround the outer circumference of the diaphragm 431. As a result, the entire outer circumference of the diaphragm 431 is auxiliaryly supported by the face-contact support assembly 44, effectively improving the positioning effect of the face-contact support assembly 44 on the diaphragm 431. Since the width WY1 of the rigid support member 441 on the side facing the tragus is smaller than the width WY2 on the opposite side of the tragus, the width of the entire face-contact support assembly 44 on the side facing the tragus is smaller than the width on the opposite side of the tragus. This allows the entire diaphragm 431 to be closer to the user's tragus, effectively improving the sound transmission effect of the bone conduction speaker 40 and effectively improving the sound quality of the earphone 1.

[0047] Furthermore, a notch 443 is provided on the side of the soft adhesive member 442 facing the tragus. On the one hand, this prevents the side of the soft adhesive member 442 with the notch 443 from affecting the position of the diaphragm 431. The presence of the notch 443 allows the diaphragm 431 to get closer to the user's tragus and ear canal, thereby increasing the vibration transmission efficiency of the diaphragm 431. On the other hand, the width of the side of the rigid support member 441 facing the tragus is small, and the support action of the rigid support member 441 on the soft adhesive member 442 in that region is small. Therefore, by providing a notch 443 on the side of the soft adhesive member 442 facing the tragus, it is possible to effectively prevent the portion of the soft adhesive member 442 facing the tragus from deforming or being damaged, which would affect the use of the earphone 1.

[0048] Preferably, in some embodiments, the material of the flexible adhesive member 442 may include a soft material such as sponge.

[0049] Preferably, as shown in Figures 7 and 9, in some embodiments, the ratio of the width WY1 of the rigid support member 441 on the side facing the tragus to the width WY2 of the rigid support member 441 on the side opposite the tragus is 0.2 or less. If the ratio is too large, the distance between the diaphragm 431 and the tragus becomes longer, affecting the sound transmission effect of the bone conduction speaker 40. If the ratio is too small, the structural strength of the face contact support assembly 44 decreases, reducing the support capacity of the face contact support assembly 44. Therefore, by setting the ratio to, for example, 0.1, 0.15, or 0.2, the face contact support assembly 44 can have a stable support capacity and ensure that the diaphragm 431 is sufficiently close to the tragus, thereby effectively improving the sound transmission effect of the bone conduction speaker 40 and further effectively improving the sound quality of the bone conduction speaker 40.

[0050] Preferably, in some embodiments, the rigid support member 441 is made of plastic and has a width WY1 on the side facing the tragus between 0.5 mm and 1.5 mm. Specifically, the rigid support member 441 is made of plastic, which effectively ensures the structural strength of the rigid support member 441 and effectively reduces the mass of the rigid support member 441, thereby effectively reducing the overall mass of the bone conduction speaker 40. Furthermore, if the width WY1 of the rigid support member 441 on the side facing the tragus is too large, the distance between the diaphragm 431 and the tragus will increase, affecting the sound transmission effect of the bone conduction speaker 40. If the width WY1 is too small, the structural strength of the face contact support assembly 44 will decrease, reducing its auxiliary support capacity. Therefore, by setting the width WY1 of the rigid support member 441 on the side facing the tragus between 0.1 mm and 2 mm based on the above material, it is possible to effectively ensure the structural strength of the rigid support member 441 and the connection strength between the rigid support member 441 and the core housing 41 while keeping the diaphragm 431 as close to the tragus as possible. In some embodiments, the rigid support member 441 may be made of a material such as resin, carbon fiber, or metal. For example, in some embodiments, the width WY1 of the rigid support member 441 on the side facing the tragus is set to 0.7, 0.8, or 0.9 mm, and the width WY2 of the rigid support member 441 on the side opposite the tragus is set to 10.75 mm ± 0.1 mm. Furthermore, for example, in some embodiments, the width WY1 of the rigid support member 441 on the side facing the tragus is set to 0.84 mm, and the width WY2 of the rigid support member 441 on the side opposite the tragus is set to 9.8 mm.

[0051] Preferably, as shown in Figures 7 and 10, in some embodiments, the rigid support member 441 is detachably connected to the core housing 41, so that if the rigid support member 441, which is a consumable part, is damaged, it can be removed from the core housing 41 and replaced, without affecting the continued use of the earphone 1 and effectively improving the service life of the earphone 1.

[0052] Preferably, as shown in Figures 7 and 10, in some embodiments, the rigid support member 441 includes a support plate 444 and an annular flange 445, the support plate 444 having a through hole 440, the diaphragm 431 being exposed through the through hole 440, the annular flange 445 being installed on the side of the support plate 444 facing the core housing and surrounding the outer circumference of the through hole 440, the annular flange 445 being fitted onto the outer circumference of the core housing 41, and snap structures 40a and 40b engaging with each other being installed on the outer wall surface of the core housing 41 and the inner wall surface of the annular flange 445, respectively, specifically, the snap structure 40a being installed on the outer wall surface of the core housing 41 and the snap structure 40b being installed on the inner wall surface of the annular flange 445.

[0053] Specifically, the central axis of the through-hole 440 is set closer to the tragus than the central axis of the support plate 444. As a result, the width WY1 of the rigid support member 441 on the side facing the tragus is smaller than the width WY2 on the opposite side of the tragus, and the entire diaphragm 431 is closer to the user's tragus, thereby effectively improving the sound transmission effect of the bone conduction speaker 40 and further effectively improving the sound quality of the bone conduction speaker 40. Furthermore, the annular flange 445 is installed on the side of the support plate 444 facing the core housing 41 and surrounds the outer circumference of the through hole 440. In this way, based on the support plate 444, the annular flange 445 improves the height and structural strength, facilitates the installation of the snap structure 40b, and, by fitting the annular flange 445 onto the outer circumference of the core housing 41, the connection between the snap structure 40b and the snap structure 40a of the core housing 41 can be made more stable and reliable. Moreover, the snap-type detachable connection effectively simplifies the assembly process between the rigid support member 441 and the core housing 41, and further effectively improves the assembly efficiency between the rigid support member 441 and the core housing 41.

[0054] Preferably, in one embodiment, the rigid support member 441 may be installed as an integrally molded part, and the side of the support member facing the core housing 41 extends outward along the bone conduction vibration direction z1, surrounding the through hole 440 to form the annular flange 445 described above. Preferably, in other embodiments, the rigid support member 441 may be formed in other ways, for example, the rigid support member 441 can be formed by connecting the support plate 444 and the annular flange 445 by welding, bonding, or other methods.

[0055] Preferably, as shown in Figures 7 and 8, in some embodiments, the bone conduction speaker 40 further includes a first vibration transmission sheet 45, a transducer device 42 elastically suspended within a core housing 41 via the first vibration transmission sheet 45, a diaphragm 431 independent of the core housing 41, and a vibration transmission face contact assembly 43 further includes a soft vibration transmission member 432 that adheres to the face-facing side of the diaphragm 431, the hardness of the soft vibration transmission member 432 being greater than that of the soft contact member 442, and in the free state, the face-facing side of the soft contact member 442 protrudes from the face-facing side of the soft vibration transmission member 432. In some embodiments, sound guide holes 4321 are further provided around the soft vibration transmission member 432, which can reduce sound leakage from the bone conduction speaker 40.

[0056] Specifically, the first vibration transmission sheet 45 is a member having a certain degree of elasticity. The transducer device 42 is elastically suspended within the core housing 41 via the first vibration transmission sheet 45, and the diaphragm 431 is independent of the core housing 41. This allows the first vibration transmission sheet 45 to effectively connect the transducer device 42 and the vibration transmission face contact assembly 43 to the core housing 41, while also effectively reducing vibrations transmitted from the transducer device 42 to the core housing 41, thereby effectively improving the sound quality of the bone conduction speaker 40. The vibration transmission face contact assembly 43 further includes a soft vibration transmission member 432 that adheres to the side of the diaphragm 431 facing the face region. The diaphragm 431 is driven by a transducer device 42, which further vibrates the soft vibration transmission member 432. The diaphragm 431 then indirectly contacts the face region in front of the tragus via the soft vibration transmission assembly, transmitting sound to the user via bone conduction vibration. In other words, the soft vibration transmission assembly contacts the face region in front of the tragus and transmits sound to the user via bone conduction vibration, thereby effectively improving the comfort of the bone conduction speaker 40 when transmitting sound to the user via bone conduction vibration.

[0057] Furthermore, since the soft vibration transmission member 432 and the soft adhesion member 442 are components that come into contact with the user's face, if the soft adhesion member 442 is too hard, or if its hardness is higher than that of the soft vibration transmission member 432, it will to some extent hinder the transmission of vibrations from the soft vibration transmission member 432 to the user's facial region in front of the tragus. Therefore, by setting the hardness of the soft vibration transmission member 432 higher than that of the soft adhesion member 442, the inhibition of vibration transmission from the soft adhesion member 442 to the soft vibration transmission member 432 can be effectively reduced, and the vibration transmission efficiency of the soft vibration transmission member 432 can be effectively improved. Moreover, since the hardness of the soft adhesion member 442 is lower than that of the soft vibration transmission member 432, the soft adhesion member 442 is more easily deformed than the soft vibration transmission member 432. Therefore, in the free state (when the earphone 1 is not attached), the side of the soft adhesive member 442 facing the face area protrudes from the side of the soft vibration transmission member 432 facing the face area, providing the soft adhesive member 442 with a large deformation space along the bone conduction vibration direction z1. Because the soft adhesive member 442 is softer than the soft vibration transmission member 432, when the earphone 1 is attached, the larger deformation space allows the side of the soft adhesive member 442 facing the face area and the side of the soft vibration transmission member 432 facing the face area to become flush and adhere closely to the face, while also ensuring sufficient auxiliary support force of the face contact support assembly 44, effectively reducing the support pressure in the vibration direction of the diaphragm 431, further effectively reducing the workload of the transducer device 42, and effectively improving the sound quality of the bone conduction speaker 40.

[0058] Preferably, in some embodiments, in the free state, the side of the soft contact member 442 facing the face region and the side of the soft vibration transmission member 432 facing the face region may be set to be flush with each other. In this case, along the bone conduction vibration direction z1, a predetermined distance is provided on the soft vibration transmission member 432 that allows it to move relative to the soft contact member 442 along the bone conduction vibration direction z1 when worn. By providing a predetermined distance on the soft vibration transmission member 432, a larger deformation space is provided on the soft contact member 442 along the bone conduction vibration direction z1. When the earphone 1 is worn, the side of the soft contact member 442 facing the face region and the side of the soft vibration transmission member 432 facing the face region become flush with each other and adhere closely to the face. At the same time, sufficient auxiliary support force of the face contact support assembly 44 is secured, effectively reducing the support pressure in the vibration direction of the diaphragm 431, further effectively reducing the workload of the transducer device 42, and effectively improving the sound quality of the bone conduction speaker 40.

[0059] Preferably, in some embodiments, the material of the flexible vibration transmission member 432 may be silicone. In other embodiments, the flexible vibration transmission member 432 may be made of a material such as rubber, TPU, or TPE.

[0060] Preferably, as shown in Figures 6, 8 and 11, in some embodiments, the core housing 41 is provided with a housing space 410 (in some embodiments herein, the housing space 410 is also called a second housing space) with one end open, and the transducer device 42 is installed in the housing space 410. The vibration transmission face contact assembly 43 includes a diaphragm 431, a flexible vibration transmission member 432, and a rigid bracket 433, wherein the intermediate region 432a of the flexible vibration transmission member 432 is fixed to the diaphragm 431 in close contact by molding, and the edge region 432b of the flexible vibration transmission member 432 is fixed to the rigid bracket 433 by molding, the diaphragm 431 is assembled and fixed to the transducer device 42, the rigid bracket 433 is assembled and fixed to the core housing 41, and the flexible vibration transmission member 432 is installed to cover the open end 413 of the core housing 41 and to be in contact with the skin of the human body.

[0061] Specifically, the soft vibration transmission member 432 is installed so as to be in contact with the skin of the human body, and as described above, the soft vibration transmission member 432 is in contact with the facial area in front of the tragus and transmits sound to the user by bone conduction vibration, thereby effectively improving the comfort when the bone conduction speaker 40 transmits sound to the user by bone conduction vibration. The edge region 432b of the soft vibration transmission member 432 is fixed to the rigid bracket 433 by a molding method, and the intermediate region 432a of the soft vibration transmission member 432 is fixed in close contact with the diaphragm 431 by a molding method, thereby effectively simplifying the assembly process of the vibration transmission face contact assembly 43, effectively improving the assembly efficiency of the speaker assembly 3, effectively improving the structural stability of the soft vibration transmission member 432, and further effectively improving the operational stability of the bone conduction speaker 40. The edge region 432b of the flexible vibration transmission member 432 is fixed to the rigid bracket 433 by a molding method, and the intermediate region 432a of the flexible vibration transmission member 432 is fixed in close contact with the diaphragm 431 by a molding method. Examples of molding methods include injection molding and compression molding. For example, the soft vibration transmission member 432 may be manufactured by an injection molding process. In the injection molding process of the soft vibration transmission member 432, the diaphragm 431 and the rigid bracket 433 are placed in a mold for manufacturing the soft vibration transmission member 432. When the molding material is injected into the mold for manufacturing the soft vibration transmission member 432, the molding material is constrained by the mold to form a liquid soft vibration transmission member 432 having a corresponding shape and structure, and adheres to the corresponding parts of the diaphragm 431 and the rigid bracket 433. After the liquid soft vibration transmission member 432 is cooled and solidified, the soft vibration transmission member 432 is formed, and the soft vibration transmission member 432 is connected to the diaphragm 431 and the rigid bracket 433. This effectively simplifies the assembly process of the vibration transmission face contact assembly 43, effectively improves the assembly efficiency of the speaker assembly 3, effectively improves the structural stability of the soft vibration transmission member 432, and further effectively improves the operational stability of the bone conduction speaker 40.The fixed similarity in the description of the molding method in this specification is not explained in detail here, as its principle is as described above.

[0062] Furthermore, the rigid bracket 433 is connected to the flexible vibration transmission member 432 and assembled and fixed to the core housing 41, thereby effectively improving the fixing effect of the vibration transmission face contact assembly 43 and the strength of the mounting structure. When the transducer device 42 drives the vibration transmission face contact assembly 43 to vibrate along the bone conduction vibration direction z1, this effectively prevents the phenomenon in which deviations in the vibration direction of the vibration transmission face contact assembly 43 affect sound transmission by bone conduction, and furthermore, it effectively improves the sound quality of the bone conduction speaker 40.

[0063] Preferably, as shown in Figures 11 and 12, in some embodiments, a plurality of fitting grooves 434 are provided on the side of the diaphragm 431 facing the flexible vibration transmission member 432, and the flexible vibration transmission member 432 is fitted into the plurality of fitting grooves 434 by a molding method. Specifically, a plurality of fitting grooves 434 are provided on the side of the diaphragm 431 facing the flexible vibration transmission member 432, and the flexible vibration transmission member 432 is fitted into the plurality of fitting grooves 434 by a molding method, thereby effectively improving the connection stability between the diaphragm 431 and the flexible vibration transmission member 432.

[0064] Preferably, as shown in Figure 12, in some embodiments, when observed along the vibration direction of the diaphragm 431, the multiple fitting grooves 434 are positioned close to the edge of the diaphragm 431 and spaced apart around the central axis z3 of the diaphragm 431. Specifically, the multiple fitting grooves 434 are positioned spaced apart around the edge of the diaphragm 431 and around the central axis z3 of the diaphragm 431, thereby further improving the connection stability between the diaphragm 431 and the soft vibration transmission member 432.

[0065] Preferably, as shown in Figures 11 and 12, in some embodiments, the fitting groove 434 is installed in a structure that connects the side of the diaphragm 431 facing the soft vibration transmission member 432 with the side opposite to the soft vibration transmission member 432, the soft vibration transmission member 432 is fitted into the fitting groove 434 by a molding method and locked to the side of the diaphragm 431 opposite to the soft vibration transmission member 432, thereby further improving the connection stability between the diaphragm 431 and the soft vibration transmission member 432.

[0066] Preferably, as shown in Figures 11 and 13, in some embodiments, the rigid bracket 433 is installed in an annular shape, the axial direction of the rigid bracket 433 is aligned with the vibration direction of the diaphragm 431, and the rigid bracket 433 is inserted into and fitted into the core housing 41 along the axial direction z4. Specifically, the rigid bracket 433 is installed in an annular structure, the axial direction z4 is parallel to the bone conduction vibration direction z1, and the rigid bracket 433 is inserted into and fitted into the core housing 41 along the axial direction, thereby effectively simplifying the assembly process between the rigid bracket 433 and the core housing 41, and effectively improving the assembly efficiency of the bone conduction speaker 40.

[0067] Preferably, as shown in Figure 13, in some embodiments, the radial thickness Hd1 of the rigid bracket 433 is smaller than the axial height Ht1 of the rigid bracket 433, which effectively improves the connection stability between the rigid bracket 433 and the core housing 41, and effectively reduces interference with members installed on the outer circumference of the rigid bracket 433.

[0068] Preferably, for example, in some embodiments, the radial thickness Hd1 of the rigid bracket 433 is set to 0.15 to 0.25 mm, for example 0.16 mm or 0.2 mm, and the thickness of the edge region 432b of the flexible vibration transmission member 432, for example the portion indicated by the arrow, is set to 0.12 to 0.18 mm, for example 0.13 mm or 0.15 mm. Furthermore, for example, in some embodiments, the thickness Hd2 of the bent portion of the rigid bracket 433 is 0.2 to 0.4 mm, for example 0.25 mm or 0.3 mm, the thickness Hd3 of the intermediate position is 0.15 to 0.2 mm, for example 0.16 mm or 0.17 mm, the thickness of the intermediate region 432a of the flexible vibration transmission member 432 is 0.3 to 0.6 mm, for example 0.4 mm, and the thickness of the edge region 432b is 0.4 to 0.6 mm, for example 0.58 mm.

[0069] Preferably, as shown in Figures 11 and 13, in some embodiments, the edge region 432b of the flexible vibration transmission member 432 is fixed to the inner annular surface 433a or outer annular surface 433b of the rigid bracket 433 by a molding method. Specifically, the edge region 432b of the flexible vibration transmission member 432 may be fixed to the inner annular surface 433a or outer annular surface 433b of the rigid bracket 433 by a molding method, thereby creating a surface connection between the flexible vibration transmission member 432 and the rigid bracket 433, which effectively improves the connection stability between the flexible vibration transmission member 432 and the rigid bracket 433.

[0070] Preferably, as shown in Figures 7, 11, and 14, in some embodiments, an annular groove 4103 is provided on the end face of the core housing 41 on the open end 413 side, and an inner housing 4121 and an outer housing 4122 are formed at the end of the core housing 41, separated by the annular groove 4103 and fitted together with each other, and the rigid bracket 433 is fitted into the annular groove 4103 and fitted onto the outer circumference of the inner housing 4121.

[0071] Specifically, the rigid bracket 433 is fitted into the annular groove 4103 and also fitted to the outer circumference of the inner housing 4121. This allows the rigid bracket 433 to connect with the core housing 41, and also effectively improves the appearance of the bone conduction speaker 40 by concealing a portion of the rigid bracket 433 within the annular groove 4103. In this embodiment, the core housing 41 is an integrally molded part, and the inner housing 4121 and the outer housing 4122 can be understood as housing portions that are fitted together and separated by the annular groove 4103 at the end of the core housing 41, with the outer housing 4122 fitted to the outer circumference of the inner housing 4121. Preferably, in other embodiments, the core housing 41 may be assembled from an inner housing 4121 and an outer housing 4122, the inner housing 4121 being a housing component having a housing space 410 for housing a transducer device 42, and the outer housing 4122 being a housing component for surrounding the outer circumference of the inner housing 4121 and forming an annular groove 4103.

[0072] Preferably, as shown in Figures 7, 11, and 14, in some embodiments, the flexible vibration transmission member 432 is fixed to a portion of the outer annular surface 433b of the rigid bracket 433 and abuts against the core housing 41, and the rigid bracket 433 is fitted into the annular groove 4103 with respect to the exposed portion of the flexible vibration transmission member 432.

[0073] Specifically, the edge region 432b of the flexible vibration transmission member 432 is installed in an arc shape, and the edge region 432b of the flexible vibration transmission member 432 is in close contact with a part of the outer annular surface 433b of the rigid bracket 433, thereby fixing the entire flexible vibration transmission member 432 to a part of the outer annular surface 433b of the rigid bracket 433, the flexible vibration transmission member 432 abuts against the outer housing 4122 of the core housing 41, and the rigid bracket 433 is fitted into the annular groove 4103 with respect to the exposed portion of the flexible vibration transmission member 432. This effectively hides the rigid bracket 433 completely, effectively improving the appearance of the bone conduction speaker 40.

[0074] Preferably, as shown in Figure 11, in some embodiments, the transducer device 42 includes a magnetic circuit system 426 elastically suspended within the core housing 41, and the rigid bracket 433 is a non-magnetic metal bracket, such as a stainless steel bracket. Specifically, the transducer device 42 includes a magnetic circuit system 426, which is a magnetic element system, and the magnetic circuit system 426 is elastically suspended within the housing space 410. For example, in the above embodiment, the magnetic circuit system 426 is elastically suspended within the housing space 410 by a first vibration transmission sheet. The rigid bracket 433 is connected to the core housing 41 in the manner described above, and by installing the rigid bracket 433 as a non-magnetic metal bracket, interference of the rigid bracket 433 with respect to the magnetic circuit system 426 can be effectively reduced, thereby effectively improving vibration stability when the transducer device 42 drives and vibrates the diaphragm 431, and further, effectively improving the sound quality of the bone conduction speaker 40. In other embodiments, the rigid bracket 433 may be made of another material, such as brass.

[0075] Preferably, as shown in Figures 6 and 7, and further as shown in Figures 15 and 16, in some embodiments, as described above, the housing assembly 30 includes a main housing 31, the main housing 31 includes a bottom wall 311 and a circumferential side wall 312 connected to the bottom wall 311 (the circumferential side wall 312 is also called the first circumferential side wall in some embodiments herein, and the bottom wall 311 is also called the first bottom wall), and an open housing space 300 (in some embodiments herein) The accommodation space 300 (also called the first accommodation space) forms a circumferential side wall 312 which includes a first side wall 3121 and a second side wall 3122 which are arranged opposite to each other, and the main housing 31 further includes a partition plate assembly 313 which is installed between the first side wall 3121 and the second side wall 3122 and is at least partially separated from the first side wall 3121 and the second side wall 3122, and a first rotating shaft mechanism 3111 and a second rotating shaft mechanism 3112 are installed in the partition plate assembly 313 and the second side wall 3122, respectively. The core housing 41 is installed between the partition plate assembly 313 and the second side wall 3122, and a third rotation shaft mechanism 4101 and a fourth rotation shaft mechanism 4102 are installed on opposite sides of the core housing 41, respectively, with the first rotation shaft mechanism 3111 rotatably fitted with the third rotation shaft mechanism 4101, and the second rotation shaft mechanism 3112 rotatably fitted with the fourth rotation shaft mechanism 4102, thereby rotatably supporting the core housing 41 on the main housing 31.

[0076] Specifically, as described above, the core housing 41 is the housing for the bone conduction speaker 40, and the main sound-generating components in the bone conduction speaker 40, such as the transducer device, the vibration transmission face contact assembly 43, and the face contact support assembly 44, are all installed in the core housing 41. Details can be found in any of the embodiments described above and will not be described in detail here. The bottom wall 311 is connected to the circumferential side wall 312 to form the aforementioned housing space 300 with one end open. The partition plate assembly 313 is installed between the first side wall 3121 and the second side wall 3122, dividing the accommodation space 300 into the space between the partition plate assembly 313 and the first side wall 3121 and the space between the partition plate assembly 313 and the second side wall 3122. The space between the partition plate assembly 313 and the first side wall 3121 may be used to accommodate other corresponding members of the speaker assembly 3, such as the air conduction speaker 50 (if only the bone conduction speaker 40 is installed in the speaker assembly 3, the space between the partition plate assembly 313 and the first side wall 3121 may be used to install other corresponding members), and the space between the partition plate assembly 313 and the second side wall 3122 may be used to install the bone conduction speaker 40. This effectively improves the space utilization rate of the speaker assembly 3.

[0077] Furthermore, a first rotating shaft mechanism 3111 and a second rotating shaft mechanism 3112 are installed on the partition plate assembly 313 and the second side wall 3122, respectively, and a third rotating shaft mechanism 4101 and a fourth rotating shaft mechanism 4102 are installed on opposing sides of the core housing 41, respectively. The core housing 41 is installed between the partition plate assembly 313 and the second side wall 3122, and the first rotating shaft mechanism 3111 is rotatably fitted with the third rotating shaft mechanism 4101, and the second rotating shaft mechanism 3112 is rotatably fitted with the fourth rotating shaft mechanism. This allows the core housing 41 to rotate relative to the main housing 31 while it is connected to the main housing 31, and the bone conduction speaker 40 to rotate relative to the main housing 31. As a result, when worn, the bone conduction speaker 40 can adjust its relative position to the main housing 31 according to the shape of the user's face, and the diaphragm 431 of the bone conduction speaker 40 can make maximum contact with the facial area in front of the user's tragus, thereby effectively improving the bone conduction sound transmission effect of the bone conduction speaker 40 and further effectively improving the sound quality of the earphone 1.

[0078] Preferably, as shown in Figures 7, 15, and 16, in some embodiments, the partition plate assembly 313 is installed so as to elastically deform along the direction of the distance between the first side wall 3121 and the second side wall 3122 when the core housing 41 is assembled to the main housing 31, and the elastic deformation capacity of the partition plate assembly 313 along the direction of the distance between the first side wall 3121 and the second side wall 3122 is greater than the elastic deformation capacity of the first side wall 3121 and the second side wall 3122 along the direction of the distance between the first side wall 3121 and the second side wall 3122. Elastic deformation capacity may be, for example, the degree of deformation or the magnitude of displacement when the same force is applied. The greater the degree of deformation or the greater the displacement, the greater the elastic deformation capacity, and conversely, the smaller the elastic deformation capacity.

[0079] Specifically, the partition plate assembly 313 is installed as an assembly with a certain degree of elastic deformation capability, and when the core housing 41 is assembled to the main housing 31, the partition plate assembly 313 elastically deforms along the direction of the distance between the first side wall 3121 and the second side wall 3122, creating sufficient assembly space for the core housing 41, allowing the core housing 41 to be smoothly assembled to the main housing 31, and further effectively improving the assembly efficiency between the core housing 41 and the main housing 31. Furthermore, the elastic deformation capacity of the partition plate assembly 313 along the direction of separation between the first side wall 3121 and the second side wall 3122 is greater than the elastic deformation capacity of the first side wall 3121 and the second side wall 3122 along the direction of separation between the first side wall 3121 and the second side wall 3122. This effectively ensures that the first side wall 3121 and the second side wall 3122 maintain sufficiently high structural strength, thereby ensuring connection stability between the core housing 41 and the main housing 31, and effectively improving the assembly efficiency between the core housing 41 and the main housing 31.

[0080] Preferably, as shown in Figures 7, 15, and 16, in some embodiments, the speaker assembly 3 further includes an air conduction speaker 50 installed between the partition plate assembly 313 and the first side wall 3121, thereby using the space between the partition plate assembly 313 and the first side wall 3121 to accommodate the air conduction speaker 50, and using the space between the partition plate assembly 313 and the second side wall 3122 to install other components such as a bone conduction speaker 40, thereby effectively improving the space utilization rate of the main housing 31. After the air conduction speaker 50 is mounted in the core housing 41 in the manner described above, the air conduction vibration direction z2 is parallel to the direction of the distance between the first side wall 3121 and the second side wall 3122.

[0081] Preferably, as shown in Figures 15 and 16, in some embodiments, the circumferential side wall 312 further includes a third side wall 3123 and a fourth side wall 3124, which are installed facing each other and connected between a first side wall 3121 and a second side wall 3122, and the partition plate assembly 313 includes a partition plate body 3131, which is connected between the third side wall 3123 and the fourth side wall 3124, and the accommodation space 300 is a first sub-space 302 located between the partition plate body 3131 and the first side wall 3121. The first sub-space 302 is divided into a second sub-space 303 located between the partition plate body 3131 and the second side wall 3122, the air conduction speaker 50 is installed in the first sub-space 302, and the vibration direction of the air conduction speaker 50 is directed toward the first side wall 3121 or opposite to the first side wall 3121, the vibration direction of the bone conduction speaker 40 is directed toward the bottom wall 311 or opposite to the bottom wall 311, and the projection of the bone conduction speaker 40 along the vibration direction of the bone conduction speaker 40 is contained within the second sub-space 303.

[0082] Specifically, the first sub-space 302 located between the partition plate body 3131 and the first side wall 3121 is the space between the partition plate assembly 313 and the first side wall 3121, and the second sub-space 303 located between the partition plate body 3131 and the second side wall 3122 is the space between the partition plate assembly 313 and the second side wall 3122. The partition plate body 3131 divides the housing space 300 into a first sub-space 302 and a second sub-space 303 in the manner described above, the air conduction speaker 50 is installed in the first sub-space 302, and the projection of the bone conduction speaker 40 along the vibration direction of the bone conduction speaker 40 is contained in the second sub-space 303, that is, the bone conduction speaker 40 is supported at the location where the second sub-space 303 is located in the manner described in any of the embodiments above, thereby effectively improving the space utilization rate of the main housing 31. Furthermore, the vibration direction of the air conduction speaker 50 (also called the air conduction vibration direction z2) is directed toward the first side wall 3121 or opposite to the first side wall 3121, and the vibration direction of the bone conduction speaker 40 (i.e., the bone conduction vibration direction z1) is directed toward the bottom wall 311 or opposite to the bottom wall 311. As a result, the air conduction vibration direction z2 and the bone conduction vibration direction z1 are positioned to intersect or nearly perpendicular to each other, effectively reducing interference between the bone conduction speaker 40 and the air conduction speaker 50, and effectively improving the sound quality of the air conduction speaker 50.

[0083] Preferably, as shown in Figures 15 and 16, in some embodiments, the partition plate body 3131 includes a first body portion 3211, a second body portion 3212, and a third body portion 3213 arranged in order from the third side wall 3123 to the fourth side wall 3124, wherein in the direction of the distance between the first side wall 3121 and the second side wall 3122, the second body portion 3212 is further away from the first side wall 3121 than the first body portion 3211 and the third body portion 3213. The partition plate body 3131 further includes a first connecting portion 3214 that connects the first main body portion 3211 and the second main body portion 3212 along the direction of the distance between the first side wall 3121 and the second side wall 3122, and a second connecting portion 3215 that connects the second main body portion 3212 and the third main body portion 3213, and the end portion 51 of the air conduction speaker 50 facing the second side wall 3122 is fitted between the first connecting portion 3214 and the second connecting portion 3215.

[0084] Specifically, the first connecting portion 3214, the second connecting portion 3215, and the second main body portion 3212 are arranged in such a spatial relationship that a positioning space 302a with a positioning function surrounds the side of the first connecting portion 3214 facing the first side wall 3121, the side of the second connecting portion 3215 facing the first side wall 3121, and the side of the second main body portion 3212 facing the first side wall 3121. The end portion 51 of the air conduction speaker 50 facing the second side wall 3122 is fitted into the positioning space 302a, and the positioning space 302a effectively positions the air conduction speaker 50 and further effectively improves the mounting accuracy of the air conduction speaker 50.

[0085] Preferably, as shown in Figures 15 to 17, in some embodiments, the partition plate body 3131 further includes a third connecting portion 3216 connecting the first body portion 3211 and the first side wall 3121 along the direction of the distance between the first side wall 3121 and the second side wall 3122, and a fourth connecting portion 3217 connecting the third body portion 3213 and the first side wall 3121, respectively, with engagement grooves 3218 provided in the third connecting portion 3216 and the fourth connecting portion 3217, and flange portions 332 fitted into the engagement grooves 3218 are provided in the air conduction speaker 50.

[0086] Specifically, during the assembly process between the air conduction speaker 50 and the main housing 31, the flange portion 332 and the engagement groove 3218 are locked together, allowing the third connection portion 3216 and the fourth connection portion 3217 to effectively position the air conduction speaker 50. This effectively prevents misalignment of the relative positions during the assembly process between the air conduction speaker 50 and the main housing 31, and further effectively improves the mounting accuracy of the air conduction speaker 50.

[0087] Preferably, as shown in Figures 15 and 16, in some embodiments, the dimension L1 along the spacing direction between the first side wall 3121 and the second side wall 3122 of the first subspace 302 is smaller than the dimension L2 along the spacing direction between the first side wall 3121 and the second side wall 3122 of the second subspace 303.

[0088] Specifically, the air conduction speaker 50 emits sound by vibrating the air and drawing sound out from the sound outlet, while the bone conduction speaker 40 generates sound by the vibration transmission face contact assembly 43 being in close contact with the face and vibrating. In order to effectively improve the sound quality of the speaker assembly 3 by effectively matching the sound transmission effect of the air conduction speaker 50 with the sound transmission effect of the bone conduction speaker 40, the bone conduction speaker 40 is usually larger than the overall structural dimensions of the air conduction speaker 50, taking into account its sensitivity and the operating method of face-contact vibration. Therefore, by setting the dimension L1 along the distance between the first side wall 3121 and the second side wall 3122 of the first sub-space 302 to be smaller than the dimension L2 along the distance between the first side wall 3121 and the second side wall 3122 of the second sub-space 303, the spatial volume of the second sub-space 303 is increased, allowing the main housing 31 to accommodate the bone conduction speaker 40 with larger structural dimensions. The bone conduction speaker 40 achieves a better vibration effect, thereby better matching the sound transmission effect of the bone conduction speaker 40 with the sound transmission effect of the air conduction speaker 50 and further effectively improving the sound quality of the bone conduction speaker 40.

[0089] Preferably, as shown in Figures 7, 15, and 16, in some embodiments, the air conduction speaker 50 is inserted into a first sub-space 302 from the open end 301 of the main housing 31, the vibration direction of the air conduction speaker 50 (air conduction vibration direction z2) is perpendicular to the insertion direction of the air conduction speaker 50 into the first sub-space 302, and the dimensions of the air conduction speaker 50 along the vibration direction are smaller than the vertical dimensions of the air conduction speaker 50 along the vibration direction.

[0090] Specifically, the dimensions of the air conduction speaker 50 along the air conduction vibration direction z2 include the thickness of the air conduction speaker 50, and the vertical dimensions of the air conduction speaker 50 along the air conduction vibration direction z2 include the width and length of the air conduction speaker 50. If the overall structural dimensions of the air conduction speaker 50 do not change, by setting the thickness of the air conduction speaker 50 to be smaller than the length and width of the air conduction speaker 50, the sound generation effect of the air conduction speaker 50 can be effectively guaranteed, and the dimensions of the air conduction speaker 50 along the air conduction vibration direction z2 (i.e., the thickness of the air conduction speaker 50) can be effectively reduced. Furthermore, by inserting the air conduction speaker 50 into the first sub-space 302 along an insertion direction perpendicular to the air conduction vibration direction z2 based on the above structural dimensions, the occupancy of the space dimensions of the main housing 31 along the air conduction vibration direction z2 by the air conduction speaker 50 can be effectively reduced. The second sub-space 303 has larger space dimensions along the air conduction vibration direction z2, which effectively improves the space utilization rate of the main housing 31 in the air conduction vibration direction z2, allowing the main housing 31 to accommodate a bone conduction speaker 40 with larger structural dimensions, and further effectively improving the sound quality of the speaker assembly 3. In some embodiments, the bone conduction vibration direction z1 may be used as a reference direction for the insertion direction.

[0091] Preferably, as shown in Figures 15 and 16, in some embodiments, the partition assembly 313 further includes an elastic arm 3132, the elastic arm 3132 is connected to the partition body 3131 on the side opposite to the bottom wall 311, the dimensions of the elastic arm 3132 along the direction of spacing between the third side wall 3123 and the fourth side wall 3124 are smaller than the dimensions of the partition body 3131 along the direction of spacing between the third side wall 3123 and the fourth side wall 3124, and the first rotating shaft mechanism 3111 is installed on the elastic arm 3132.

[0092] Specifically, the elastic arm 3132 is connected to the opposite side of the bottom wall 311 of the partition plate body 3131. For example, in some embodiments, the elastic arm 3132 is connected to the opposite side of the bottom wall 311 of the second body portion 3212. The first rotating shaft mechanism 3111 is mounted on the elastic arm 3132, which has the ability to elastically deform along the spacing direction. When assembling the core housing 41 and the main housing 31, the elastic arm 3132 elastically deforms along the spacing direction between the first side wall 3121 and the second side wall 3122, thereby creating sufficient assembly space for the core housing 41. This allows the first rotating shaft mechanism 3111 and the third rotating shaft mechanism 4101, and the second rotating shaft mechanism 3112 and the fourth rotating shaft mechanism 4102, to be easily and quickly fitted together, effectively improving the assembly efficiency of the core housing 41 and the main housing 31.

[0093] Preferably, as shown in Figures 15 and 16, in some embodiments, the elastic arm 3132 further elastically contacts the side of the air conduction speaker 50 opposite to the first side wall 3121.

[0094] Specifically, after the bone conduction speaker 40 is placed in the second sub-space 303 in the manner described above, the elastic arm 3132 is pressed by the bone conduction speaker 40 and elastically deforms toward the air conduction speaker 50, causing the elastic arm 3132 to come into contact with the air conduction speaker 50, providing a contact force to the air conduction speaker 50 and effectively improving the fixing effect between the air conduction speaker 50 and the main housing 31.

[0095] Preferably, in some embodiments, the main housing 31 and the partition plate assembly 313 are integrally molded, the first rotating shaft mechanism 3111 is a rotating shaft, and the third rotating shaft mechanism 4101 is a rotating groove that receives the rotating shaft.

[0096] Preferably, as shown in Figures 6, 7 and 17, in some embodiments, the housing assembly 30 further includes a main cover 32 covering the open end 301 of the main housing 31, the air conduction speaker 50 is provided with a first sound outlet 330 positioned toward the main cover 32, and the main cover 32 is provided with a second sound outlet 321 corresponding to the first sound outlet 330.

[0097] Specifically, the housing assembly 30 is a component that houses and supports the air conduction speaker 50 and / or bone conduction speaker 40, and includes a detachably connected main housing 31 and main cover 32. After fixing the air conduction speaker 50 and / or bone conduction speaker 40 to the main housing 31 in the manner described above, the main cover 32 is placed over the open end 301 of the main housing 31. This effectively prevents the main cover 32 portion of the housing assembly 30 from interfering with the assembly of the housing when installing the air conduction speaker 50 and / or bone conduction speaker 40, thereby effectively improving the installation efficiency of the speaker assembly 3. Furthermore, the air conduction speaker 50 and the main cover 32 are equipped with a first sound outlet 330 and a second sound outlet 321, respectively. The first sound outlet 330 is positioned to correspond to the second sound outlet 321, thereby more efficiently transmitting sound generated from the air conduction speaker 50 through the first sound outlet 330 to the user's ears along the second sound outlet 321, and effectively improving the sound transmission effect of the air conduction speaker 50.

[0098] Preferably, as shown in Figures 5, 6, and 7, and further as shown in Figure 15, in some embodiments, as described above, the bone conduction speaker 40 includes a transducer device 42 and a diaphragm 431, the transducer device 42 being installed in a core housing 41, and the diaphragm 431 being connected to the transducer device 42 (the specific installation method of the connection relationship between the transducer device 42 and the core housing 41 and the diaphragm 431 can be found by referring to any embodiment described herein for the transducer device 42, which will not be described in detail here), the first rotating shaft mechanism 3111 and the second rotating shaft mechanism 3112 being installed protruding from the open end 301 of the main housing 31, and the main cover 32 being provided with an opening 320, through which the core housing 41 and the diaphragm 431 are exposed.

[0099] Specifically, the core housing 41 is rotatably fitted to the first rotation axis mechanism 3111 and the second rotation axis mechanism 3112 via the third rotation axis mechanism 4101 and the fourth rotation axis mechanism 4102, respectively. The first rotation axis mechanism 3111 and the second rotation axis mechanism 3112 are installed to protrude outward from the open end 301 of the main housing 31. As a result, the core housing 41 and components such as the diaphragm 431 are exposed through the opening 320 of the main cover 32, preventing the bone conduction speaker 40 from excessively occupying the second sub-space 303. This reduces the spatial volume of the second sub-space 303, effectively decreasing the spatial volume of the main housing 31 and effectively improving the space utilization rate of the speaker assembly 3.

[0100] Preferably, as shown in Figures 2 and 7, in some embodiments, the speaker assembly 3 further includes a battery 61 or a control circuit board 62 installed in a second sub-space 303, the battery 61 powering the air conduction speaker 50 and bone conduction speaker 40 via the control circuit board 62, and the control circuit board 62 controlling the air conduction speaker 50 and bone conduction speaker 40 to vibrate.

[0101] Specifically, a portion of the second sub-space 303 is used to install the bone conduction speaker 40, and the remaining portion is used to install the battery 61 or the control circuit board 62, thereby effectively improving the space utilization rate of the main housing 31 and further optimizing the overall structural dimensions of the speaker assembly 3. As described above, the speaker assembly 3 is applied to the earphone 1, which may include two speaker assemblies 3, with the battery 61 installed in one speaker assembly 3 and the control circuit board 62 installed in the other speaker assembly 3.

[0102] Preferably, as shown in Figures 6 and 7, in some embodiments, the speaker assembly 3 includes a housing assembly 30 including a main housing 31, an air conduction speaker 50, and a bone conduction speaker 40. The air conduction speaker 50 is installed in the main housing 31 in the manner of any embodiment herein, and the bone conduction speaker 40 is rotatably supported in the main housing 31 and can rotate relative to the main housing 31 along a predetermined axis of rotation Ax1, the vibration direction of the air conduction speaker 50 (air conduction vibration direction z2) and the axis of rotation Ax1 are parallel to each other, and the vibration direction of the bone conduction speaker 40 (bone conduction vibration direction z1) and the axis of rotation Ax1 are perpendicular to each other.

[0103] Specifically, as described in the above embodiment, for example, the main housing 31 is equipped with a first rotating shaft mechanism 3111 and a second rotating shaft mechanism 3112, and the core housing 41 is equipped with a third rotating shaft mechanism 4101 and a fourth rotating shaft mechanism 4102. The first rotating shaft mechanism 3111 is rotatably connected to the third rotating shaft mechanism 4101, and the second rotating shaft mechanism 3112 is rotatably connected to the fourth rotating shaft mechanism 4102. As a result, the bone conduction speaker 40 is rotatably supported in the main housing 31. The bone conduction speaker 40 is rotatably connected to the main housing 31, allowing the bone conduction speaker 40 to rotate relative to the main housing 31. When worn, the bone conduction speaker 40 can adjust its relative position to the main housing 31 according to the shape of the user's face, and the diaphragm 431 of the bone conduction speaker 40 can make maximum contact with the facial area in front of the user's tragus. This effectively improves the bone conduction sound transmission effect of the bone conduction speaker 40 and further improves the sound quality of the bone conduction speaker 40.

[0104] Furthermore, the vibration direction of the air conduction speaker 50 (i.e., the air conduction vibration direction z2) and the rotation axis Ax1 are parallel to each other, thereby effectively reducing interference between the air conduction speaker 50 and the bone conduction speaker 40. For example, by setting the air conduction vibration direction z2 parallel to the rotation axis Ax1, the air conduction speaker 50 can effectively prevent the bone conduction speaker 40 from rotating around the rotation axis Ax1 during operation. In addition, the vibration direction of the bone conduction speaker 40 and the rotation axis Ax1 are perpendicular to each other, i.e., the bone conduction vibration direction z1 is set to be perpendicular to the air conduction vibration direction z2. This effectively reduces interference between the bone conduction speaker 40 and the air conduction speaker 50, thereby effectively improving the sound quality of the air conduction speaker 50.

[0105] Preferably, as shown in Figure 7, in some embodiments, the main housing 31 includes a first bottom wall and a first circumferential side wall connected to the first bottom wall (in some embodiments, the first bottom wall is also called bottom wall 311, and the first circumferential side wall is also called circumferential side wall 312), forming a first housing space with one end open (in some embodiments, the first housing space is also called housing space 300), and the air conduction speaker 50 and the bone conduction speaker 40 are positioned in the first housing space from the open end 301 of the main housing 31, with the vibration direction of the air conduction speaker 50 directed toward the first circumferential side wall or opposite to the first circumferential side wall, and the vibration direction of the bone conduction speaker 40 directed toward the first bottom wall or opposite to the first bottom wall.

[0106] Specifically, as shown in Figure 7, and further as shown in Figures 8, 11, 15, and 16, in some embodiments, a rotating shaft mechanism is provided that is detachably fitted to the main housing 31 and the core housing 41, respectively (in some embodiments, the rotating shaft mechanism includes a rotating shaft mechanism 31x installed in the main housing 31 and a rotating shaft mechanism 41x installed in the core housing 41, the rotating shaft mechanism 31x includes the first rotating shaft mechanism 3111 and the second rotating shaft mechanism 3112 installed in the main housing 31 as described above, and the rotating shaft mechanism 41x is installed in the core housing Including a third rotating shaft mechanism 4101 and a fourth rotating shaft mechanism 4102 installed in the wadding 41 (details can be found in the above description and will not be described in detail here), the core housing 41 is rotatably supported in the main housing 31 by rotatably fitting with the rotating shaft mechanism 31x via the rotating shaft mechanism 41x, thereby effectively improving the assembly efficiency of the main housing 31 and the core housing 41 as the main housing 31 and the core housing 41 are detachably connected via the rotating shaft mechanism 31x and the rotating shaft mechanism 41x.

[0107] Preferably, in some embodiments, as described above, as shown in Figures 1, 6 and 8, the speaker assembly 3 includes a housing assembly 30, an air conduction speaker 50, and a bone conduction speaker 40, wherein the bone conduction speaker 40 is mounted eccentrically with respect to the housing assembly 30, and the bone conduction speaker 40 includes a vibration transmission face contact assembly 43, which, when worn, contacts the anterior facial region of the user's ear to conduct bone conduction sound waves, the air conduction speaker 50 is mounted within the housing assembly 30, the air conduction speaker 50 has a first sound outlet 330, and the housing assembly 30 has a second sound outlet 321 corresponding to the first sound outlet, and when observed along the vibration direction of the bone conduction speaker 40 (i.e., bone conduction vibration direction z1), the second sound outlet 321 is located on the outer circumference of the vibration transmission face contact assembly 43 and conducts air conduction sound waves.

[0108] Specifically, as described above, the bone conduction speaker 40 transmits sound to the user using bone conduction vibration. The transducer device 42 is a device that converts electrical signals into vibrations, is connected to the diaphragm 431, and drives the diaphragm 431 to vibrate based on the corresponding electrical signal. The direction of vibration of the diaphragm 431 is also called the bone conduction vibration direction z1, that is, the direction of vibration when the bone conduction speaker 40 is operating. The air conduction speaker 50 is equipped with a first sound outlet 330, and the housing assembly 30 is equipped with a second sound outlet 321. For example, the second sound outlet 321 is installed on the main cover 32, the first sound outlet 330 is installed facing the main cover 32, and the main cover 32 is equipped with a second sound outlet 321 corresponding to the first sound outlet 330. The sound generated by the air conduction speaker 50 is radiated from the first sound outlet 330 and conducted to the user's ears through the second sound outlet 321. This efficiently transmits the sound radiated from the air conduction speaker 50 to the user's ears, further effectively improving the sound transmission effect of the air conduction speaker 50 and effectively improving the sound quality of the sound transmitted from the air conduction speaker 50 to the user. Furthermore, when worn, and observed along the bone conduction vibration direction z1, the second sound emission port 321 is located on the outer circumference of the vibration transmission face contact assembly 43, thereby effectively reducing sound transmission interference from the bone conduction speaker 40 to the air conduction speaker 50, effectively improving the sound transmission effect of the air conduction speaker 50, and effectively improving the sound quality of the sound transmitted from the air conduction speaker 50 to the user.

[0109] Preferably, in some embodiments, the bone conduction speaker 40 further comprises a core housing 41, a transducer device 42, and a face contact support assembly 44, wherein the housing assembly 30 includes a main housing 31, the core housing 41 is supported by the main housing 31, the transducer device 42 is installed inside the core housing 41, the vibration transmission face contact assembly 43 includes a diaphragm 431, the diaphragm 431 is connected to the transducer device 42 and, when worn, directly or indirectly contacts the anterior facial area of ​​the user's tragus, and the face contact support assembly 44 is connected to the core housing 41 and, when observed along the vibration direction of the diaphragm 431, surrounds the outer circumference of the diaphragm 431 along the circumferential direction of the diaphragm 431. Furthermore, as shown in Figures 7, 8, and 17, the width of the face-contact support assembly 44 on the side facing the tragus is smaller than the width on the opposite side of the tragus, and when worn, the face-contact support assembly 44 contacts the facial area on the outer circumference of the diaphragm 431, the air conduction speaker 50 is installed inside the housing assembly 30, the air conduction speaker 50 has a first sound outlet 330, and the housing assembly 30 has a second sound outlet 321 corresponding to the first sound outlet 330, and when observed along the vibration direction of the diaphragm 431, the second sound outlet 321 is located between the diaphragm 431 and the tragus and at least a portion of it is located on the outer circumference of the face-contact support assembly 44.

[0110] Specifically, as described above, the bone conduction speaker 40 transmits sound to the user using bone conduction vibration. The transducer device 42 is a device that converts electrical signals into vibrations, and is connected to the diaphragm 431, and drives the diaphragm 431 to vibrate based on the corresponding electrical signal. The direction of vibration of the diaphragm 431 is also called the bone conduction vibration direction z1, that is, the direction of vibration when the bone conduction speaker 40 is operating. The diaphragm 431 is the main component of the vibration transmission face contact assembly 43, and when the earphone 1 is worn, the diaphragm 431 directly or indirectly contacts the face area in front of the user's tragus, thereby, driven by the transducer device 42, the diaphragm 431 transmits sound to the user using bone conduction vibration. In some embodiments, the contact method between the diaphragm 431 and the user's anterior tragus facial region is indirect, i.e., indirect contact with the anterior tragus facial region via the soft vibration transmission member 432. In any embodiment relating to the bone conduction speaker 40 herein, a similar description of the contact between the diaphragm 431 and the user's anterior tragus facial region can be understood as the diaphragm 431 indirectly contacting the anterior tragus facial region via the soft vibration transmission member 432. For example, as described above, the vibration transmission face contact assembly 43 further includes a soft vibration transmission member 432 and a rigid bracket 433, the edge region 432b of the soft vibration transmission member 432 fixed to the rigid bracket 433 by molding, and the intermediate region 432a of the soft vibration transmission member 432 fixed in close contact with the diaphragm 431 by molding. The specific structure of the vibration transmission face contact assembly 43 can be found in the above description and will not be described in detail here. The soft vibration transmission member 432 is connected to the diaphragm 431 in the manner described above and makes direct contact with the skin of the human body. As described above, the soft vibration transmission member 432 makes contact with the facial region in front of the tragus and transmits sound to the user via bone conduction vibration. This effectively improves the comfort of the bone conduction speaker 40 when it transmits sound to the user via bone conduction vibration.

[0111] Furthermore, the face-contact support assembly 44 plays an auxiliary support role. When worn, the face-contact support assembly 44 contacts the user's facial area in front of the tragus and provides auxiliary support to the bone conduction speaker 40 along the bone conduction vibration direction z1. This effectively reduces the support pressure applied by the diaphragm 431 along the vibration direction, further reducing the operating load of the transducer device 42 and effectively improving the sound quality of the bone conduction speaker 40. Also, when observed along the bone conduction vibration direction z1, the face-contact support assembly 44 surrounds the outer circumference of the diaphragm 431 along its circumferential direction. As a result, the entire outer circumference of the diaphragm 431 is auxiliaryly supported by the face-contact support assembly 44, effectively improving the positioning effect of the face-contact support assembly 44 on the diaphragm 431.

[0112] Furthermore, when observed along the vibration direction of the diaphragm 431, the width of the face-contact support assembly 44 on the side facing the tragus is smaller than the width on the opposite side of the tragus. This installation brings the entire diaphragm 431 closer to the user's tragus, effectively improving the sound transmission effect of the bone conduction speaker 40 and further improving the sound quality of the bone conduction speaker 40. The specific structure of the face-contact support assembly 44 can be found in any embodiment of the face-contact support assembly 44 in this application and will not be described in detail here. The air conduction speaker 50 is equipped with a first sound outlet 330, and the housing assembly 30 is equipped with a second sound outlet 321. For example, the second sound outlet 321 is installed on the main cover 32, the first sound outlet 330 is installed facing the main cover 32, and the main cover 32 is equipped with a second sound outlet 321 corresponding to the first sound outlet 330. The sound generated by the air conduction speaker 50 is radiated from the first sound outlet 330 and conducted to the user's ears through the second sound outlet 321. This efficiently transmits the sound radiated from the air conduction speaker 50 to the user's ears, effectively improving the sound transmission effect of the air conduction speaker 50 and effectively improving the sound quality of the sound transmitted from the air conduction speaker 50 to the user. Furthermore, when worn, and observed along the vibration direction of the diaphragm 431, the second sound outlet 321 is located between the diaphragm 431 and the tragus. As a result, the second sound outlet 321 is positioned closer to the user's ear, efficiently introducing the sound generated by the air conduction speaker 50 into the user's ear through the second sound outlet 321. This also effectively improves the sound transmission effect of the air conduction speaker 50 and the sound quality transmitted from the air conduction speaker 50 to the user.

[0113] Preferably, as shown in Figures 4, 6, 7 and 16, in some embodiments, as described above, the housing assembly 30 includes a main cover 32 covering the open end 301 of the main housing 31, the air conduction speaker 50 is provided with a first sound outlet 330 positioned toward the main cover 32, the main cover 32 is provided with a second sound outlet 321 corresponding to the first sound outlet 330, and the sound generated by the air conduction speaker 50 is radiated from the first sound outlet 330 and conducted to the user's ears through the second sound outlet 321.

[0114] Specifically, as described above, the housing assembly 30 is a component that houses and supports the air conduction speaker 50 and / or bone conduction speaker 40, and includes a detachably connected main housing 31 and main cover 32. After fixing the air conduction speaker 50 and / or bone conduction speaker 40 to the main housing 31 in the manner described above, the main cover 32 is placed over the open end 301 of the main housing 31. This effectively prevents the main cover 32 portion of the housing assembly 30 from interfering with the assembly of the housing when installing the air conduction speaker 50 and / or bone conduction speaker 40, thereby effectively improving the installation efficiency of the speaker assembly 3. Furthermore, the air conduction speaker 50 and the main cover 32 are equipped with a first sound outlet 330 and a second sound outlet 321, respectively. The first sound outlet 330 is positioned to correspond to the second sound outlet 321, thereby more efficiently transmitting sound generated from the air conduction speaker 50 through the first sound outlet 330 to the user's ears along the second sound outlet 321, and effectively improving the sound transmission effect of the air conduction speaker 50.

[0115] Preferably, in some embodiments, when worn, the diaphragm 431 is in direct or indirect contact with the user's facial area in front of the tragus, and when observed along the vibration direction of the diaphragm 431, the second sound outlet 321 is located between the diaphragm 431 and the tragus, thereby efficiently introducing the sound generated by the air conduction speaker 50 to the user's ear through the second sound outlet 321, further effectively improving the sound transmission effect of the air conduction speaker 50 and effectively improving the sound quality of the sound transmitted from the air conduction speaker 50 to the user.

[0116] Preferably, in some embodiments, the second sound outlet 321 is positioned to face the wearer's ear when worn, thereby efficiently introducing the sound generated by the air conduction speaker 50 through the second sound outlet 321 to the user's ear, further effectively improving the sound transmission effect of the air conduction speaker 50 and effectively improving the sound quality of the sound transmitted from the air conduction speaker 50 to the user.

[0117] Preferably, as shown in Figures 6 and 7, in some embodiments, the housing assembly 30 further includes a main cover 32, and the main housing 31 includes a bottom wall 311 and a circumferential side wall 312 connected to the bottom wall 311 to form an open-ended housing space 300, the main cover 32 covers the open end of the main housing 31, the air conduction speaker 50 is installed in the housing space 300, the second sound outlet 321 is installed in the main cover 32, the main cover 32 has an opening 320, and the core housing 41 and diaphragm 431 are exposed through the opening 320. For example, as described above, the main housing 31 is equipped with a first rotating shaft mechanism 3111 and a second rotating shaft mechanism 3112, and the core housing 41 is equipped with a third rotating shaft mechanism 4101 and a fourth rotating shaft mechanism 4102. The first rotation axis mechanism 3111 and the second rotation axis mechanism 3112 are installed protruding outward from the open end 301 of the main housing 31, the first rotation axis mechanism 3111 is rotatably fitted with the third rotation axis mechanism 4101, and the second rotation axis mechanism 3112 is rotatably fitted with the fourth rotation axis mechanism 4102, thereby allowing the entire bone conduction speaker 40 (the bone conduction speaker 40 as described above, including at least the core housing 41 and the diaphragm 431) to be suspended in the housing space 300. Furthermore, the core housing 41 and diaphragm 431 are exposed through the opening 320 of the main cover 32, so that the bone conduction speaker 40 does not excessively occupy the housing space 300 (second sub-space 303) after it has been assembled with the main housing 31. This reduces the volume of the housing space 300 (second sub-space 303), thereby reducing the volume of the main housing 31 and effectively improving the space utilization rate of the speaker assembly 3.

[0118] Preferably, as shown in Figures 4, 5, 6, 7, 16, and 17, in some embodiments, the air conduction speaker 50 is inserted into the housing space 300 from the open end of the main housing 31, and the air conduction speaker 50 is further provided with a first pressure relief port 331, and the first sound emission port 330 and the first pressure relief port 331 are positioned on opposite sides of each other along the insertion direction of the air conduction speaker 50 into the main housing 31 (in the above, the insertion direction is also called the insertion direction), thereby effectively reducing mutual interference when the air conduction speaker 50 depressurizes along the first pressure relief port 331 and when the air conduction speaker transmits sound along the first sound emission port 330, and effectively improving the sound quality of the air conduction speaker 50. A second pressure reducing port 304 corresponding to the first pressure reducing port 331 is installed in the bottom wall 311. Specifically, the bottom wall 311 is installed facing the first pressure reducing port 331, and the second pressure reducing port 304 is installed in the bottom wall 311. This allows the pressurized air discharged from the first pressure reducing port 331 of the air conduction speaker 50 to be efficiently discharged through the second pressure reducing port 304 into the space outside the speaker assembly 3, thereby achieving pressure reduction more efficiently.

[0119] Preferably, as shown in Figures 11 and 18, in some embodiments, the bone conduction speaker 40 further includes lead wires 46, the core housing 41 is provided with housing lead wire holes 4104, the lead wires 46 extend into the core housing 41 through the housing lead wire holes 4104 and are electrically connected to the transducer device 42, the direction of extension of the housing lead wire holes 4104 intersects the rotation axis Ax1.

[0120] Specifically, the lead wire 46 is electrically connected to the transducer device 42 so as to guide electrical signals to the transducer device 42. The housing lead wire hole 4104 is used to bring the lead wire 46, which is connected to the transducer device 42 inside the core housing 41, out of the core housing 41. The lead wire 46 is installed in the core housing 41 and extends into the core housing 41 through the housing lead wire hole 4104 so as to be electrically connected to the transducer device 42. Here, the direction of extension of the housing lead wire hole 4104 (the direction of extension of the housing lead wire hole 4104 is perpendicular to the bottom wall 411 of the core housing 41) intersects the rotation axis Ax1, which effectively reduces the tension on the lead wire 46 when the bone conduction speaker 40 rotates around the rotation axis Ax1, and effectively extends the service life of the lead wire 46.

[0121] Preferably, as shown in Figures 7, 11, 14 and 18, in some embodiments, the core housing 41 includes a second bottom wall and a second circumferential side wall connected to the second bottom wall (in some embodiments, the second bottom wall is also called the bottom wall 411, and the second circumferential side wall is also called the circumferential side wall 412), forming a second housing space with one end open (in some embodiments, the second housing space is also called the housing space 410), and the transducer device 42 is the The speaker assembly 3 is installed within the 2 containment space, the second bottom wall is positioned toward the first bottom wall (i.e., bottom wall) 311 than the open end 413 of the core housing 41, the housing lead wire holes 4104 are positioned in the second bottom wall, the rotating shaft mechanism 41x installed in the core housing 41 is positioned in the second circumferential side wall, the speaker assembly 3 further includes a control circuit board 62 located between the first bottom wall and the core housing 41, and the lead wires 46 are connected to the control circuit board 62.

[0122] Specifically, the second bottom wall is connected to the second circumferential wall, with one end open to form a second housing space for accommodating the transducer device 42, where, as described above, the end of the core housing 41 is the end of the second circumferential wall that is separated from the first bottom wall (i.e., bottom wall 311). Along the bone conduction vibration direction z1, the second bottom wall is located between the second circumferential wall and the first bottom wall, that is, as described above, the second bottom wall is positioned toward the first bottom wall than the open end 413 of the core housing 41. The rotating shaft mechanisms 41x (for example, the third rotating shaft mechanism 4101 and the fourth rotating shaft mechanism 4102) installed in the core housing 41 are mounted on the second peripheral side wall, and the control circuit board 62 is mounted between the first bottom wall and the core housing 41, that is, the control circuit board 62 is mounted between the first bottom wall and the second bottom wall, thereby effectively utilizing the extra space between the second bottom wall and the core housing 41 and improving the space utilization rate of the main housing 31.

[0123] Preferably, as shown in Figures 11, 15, and 18, in some embodiments, the distance from the rotating shaft mechanism 41x installed in the core housing 41 to the second bottom wall along the vibration direction of the diaphragm 431 (i.e., along the bone conduction vibration direction z1) is smaller than the distance from the rotating shaft mechanism 41x installed in the core housing 41 to the open end 413 of the core housing 41.

[0124] Specifically, in the bone conduction vibration direction z1, the distance from the rotating shaft mechanism 41x installed in the core housing 41 to the second bottom wall is smaller than the distance from the rotating shaft mechanism 41x installed in the core housing 41 to the open end 413 of the core housing 41. As a result, the rotating shaft mechanism 41x is closer to the second bottom wall of the core housing 41, that is, closer to the bottom of the core housing 41. This causes most of the bone conduction speaker 40 to protrude from the second sub-space, effectively reducing the occupancy rate of the bone conduction speaker 40 in the second sub-space. Furthermore, the rotation axis mechanism 41x and the second bottom wall may be installed on substantially the same plane, thereby ensuring that the housing lead wire hole 4104 is installed on the second bottom wall and that the extension direction of the housing lead wire hole 4104 intersects with the rotation axis Ax1. This effectively reduces the tension on the lead wire 46 when the bone conduction speaker 40 rotates around the rotation axis Ax1, effectively extending the service life of the lead wire 46. By positioning the rotation axis mechanism 41x and the second bottom wall on substantially the same plane, the entire bone conduction speaker 40 can protrude from the second sub-space, thereby effectively reducing the occupancy rate of the bone conduction speaker 40 in the second sub-space.

[0125] As shown in Figure 1, an embodiment of the present invention provides an earphone 1. The earphone 1 includes a mounting assembly 2 and a speaker assembly 3, the mounting assembly 2 being fixedly connected to a housing assembly 30 of the speaker assembly 3. The mounting assembly 2 can stably support the speaker assembly 3 in a corresponding position on a person's face. The speaker assembly 3 can receive a corresponding signal and vibrate.

[0126] As shown in Figures 19 and 20, an embodiment of the present invention provides a speaker assembly 3. The speaker assembly 3 includes a housing assembly 30 and a bone conduction speaker 40.

[0127] The housing assembly 30 is provided with a housing space 300 in which a bone conduction speaker 40 can be housed. The housing assembly 30 can provide mechanical support to the bone conduction speaker 40, and within the housing space 300, components for driving and operating the bone conduction speaker 40, such as a battery, an electrical control board, or a control circuit, can be housed.

[0128] The bone conduction speaker 40 includes a core housing 41 and a transducer device 42, the core housing 41 being supported by a housing assembly 30 and at least a portion of which is located within a housing space 300. A mounting space 410 is provided in the core housing 41, and the transducer device 42 is installed within the mounting space 410. The volume of the mounting space 410 is smaller than the volume of the housing space 300. The mounting space 410 can accommodate the transducer device 42, and the housing space 300 can accommodate at least a portion of the core housing 41 and other components. Preferably, the housing space 300 can further accommodate an air conduction speaker 50. The transducer device 42 can convert electrical energy into vibrations. The bone conduction speaker 40 includes a vibration transmission plate 424 connected to a transducer device 42. At least a portion of the vibration transmission plate 424 protrudes outward through an opening and comes into close contact with a person's face, allowing the vibrations generated by the transducer device 42 to be received by the user via bone conduction by bringing it even closer to the person's face.

[0129] Furthermore, as shown in Figures 19 and 21, the core housing 41 is provided with a first sound guide hole 4106 that communicates with the mounting space 410, and the housing assembly 30 is provided with a second sound guide hole 350 that communicates with the first sound guide hole 4106, so that the first sound guide hole 4106 communicates with the outside via the second sound guide hole 350. When the mounting space 410 and the outside are connected by the first sound guide hole 4106 and the second sound guide hole 350, the pressure changes due to vibrations of the transducer device 42 in the mounting space 410 can be balanced by the first sound guide hole 4106 and the second sound guide hole 350.

[0130] In some cases, the sound transmitted from the transducer device 42 to the outside through the first sound guide hole 4106 and the second sound guide hole 350 is in opposite phase to the sound leakage generated by the vibration transmission plate 424 of the transducer device 42. Therefore, the sound leakage and the sound radiated from the first sound guide hole 4106 and the second sound guide hole 350 cancel each other out at least partially, thereby further improving the sound leakage phenomenon of the speaker assembly 3 and further enhancing the sound quality effect of the speaker assembly 3.

[0131] Compared to the above-described solution of the present invention, when the transducer device 42 is directly mounted to the large-volume housing space 300, the resonance frequency between the sound waves generated by the transducer device 42 and the cavity formed by the housing assembly 30 is relatively low. In this case, during the operation of the bone conduction speaker 40, the sound waves generated by the transducer device 42 and the housing assembly 30 are very prone to resonance effects. On the one hand, sound leakage increases, and on the other hand, the sound wave frequency response changes rapidly, making it impossible to adequately cancel out the interference of sound leakage. Furthermore, when the resonance frequency is relatively low, it is not possible to guarantee a balanced acoustic performance of the bone conduction speaker 40. In the embodiment of the present invention, a core housing 41 is installed to house the transducer device 42, but the housing assembly 30 houses the core housing 41 and other parts. With this installation, the small mounting space 410 is separated from the larger housing space 300 by the core housing 41, and the resonance frequency between the sound waves generated by the transducer device 42 and the cavity formed by the small core housing 41 in the mounting space 410 becomes relatively high. In this case, on the one hand, the sound waves generated by the transducer device 42 are less likely to resonate with the core housing 41, and on the other hand, the abrupt changes that occur in the low frequency band due to resonance in the sound waves generated by the transducer device 42 can be reduced. This helps to cancel out the interference between sound leakage from the vibration transmission plate 424 and sound leakage from the sound guide hole 4106, which helps to improve the sound leakage phenomenon of the speaker assembly 3 and improve the sound quality effect of the speaker assembly 3.

[0132] Specifically, in some embodiments, as shown in Figure 20, the first sound port 4106 and the second sound port 350 each communicate with a housing space 300 located on the outer periphery of the core housing 41. In other words, the first sound port 4106 and the second sound port 350 can communicate with each other via the housing space 300 on the outer periphery of the core housing 41. Air pressure changes and airborne sound caused by vibrations of the transducer device 42 are conducted from the first sound port 4106 through the housing space 300 to the second sound port 350, and then conducted to the outside to improve the sound leakage phenomenon of the speaker assembly 3.

[0133] Preferably, in some embodiments, the first sound hole 4106 and the second sound hole 350 are positioned opposite each other along the radial direction of the transducer device 42. The transducer device 42 has a vibration direction, and the radial direction of the transducer device 42 refers to the direction perpendicular to the vibration direction of the transducer device 42. That is, the depth direction of the first sound hole 4106 and the second sound hole 350 and the vibration direction of the transducer device 42 are perpendicular.

[0134] Vibrations transmitted from the transducer device 42 through the first sound guide hole 4106 and the second sound guide hole 350 are transmitted in the form of air conduction. By positioning the first sound guide hole 4106 and the second sound guide hole 350 opposite each other along the radial direction of the transducer device 42, sound waves in the mounting space 410 are more easily transmitted through the first sound guide hole 4106 and the second sound guide hole 350, improving the efficiency of sound wave transmission. This makes it easier for the first sound guide hole 4106 and the second sound guide hole 350 to achieve the above technical effects, further improving the sound leakage phenomenon of the speaker assembly 3.

[0135] In some embodiments, the number of first sound conductors 4106 is multiple, and the multiple first sound conductors 4106 are spaced apart along the circumferential direction of the core housing 41 on the circumferential sidewall 412 of the core housing 41. In some other embodiments, the number of second sound conductors 350 is multiple, and the multiple second sound conductors 350 are spaced apart along the circumferential direction of the housing assembly 30 on the circumferential sidewall 312 of the housing assembly 30.

[0136] In some further embodiments, the number of first sound guide holes 4106 is multiple, and the multiple first sound guide holes 4106 are installed at intervals along the circumferential direction of the core housing 41 on the circumferential side wall 412 of the core housing 41. Similarly, the number of second sound guide holes 350 is multiple, and the multiple second sound guide holes 350 are installed at intervals along the circumferential direction of the housing assembly 30 on the circumferential side wall 312 of the housing assembly 30. By installing multiple first sound guide holes 4106 on the circumferential side wall 412 of the core housing 41 and / or by installing multiple second sound guide holes 350 on the circumferential side wall 312 of the housing assembly 30, sound waves generated by the transducer device 42 can be conducted to the outside along multiple different directions, and the sound leakage improvement effect of the first sound guide holes 4106 and the second sound guide holes 350 can be optimized.

[0137] In some other embodiments, as shown in Figure 19, the housing assembly 30 includes a passage member 36 in which a sound guide passage 360 ​​is formed, and the passage member 36 is located within the housing space 300. Both ends of the sound guide passage 360 ​​communicate with a first sound guide hole 4106 and a second sound guide hole 350, respectively, and the mounting space 410 can be connected to the outside by the first sound guide hole 4106, the sound guide passage 360 ​​and the second sound guide hole 350, thereby achieving the effect of improving sound leakage from the speaker assembly 3.

[0138] In some embodiments, by installing an independent passage member 36, sound waves within the mounting space 410 can be directly conducted to the outside without passing through the housing space 300, thereby reducing sound wave interference with the internal components of the housing space 300 and reducing the possibility of sound waves resonating with the housing assembly 30 after entering the housing space 300.

[0139] The volume of the sound guide passage 360 ​​is smaller than the volume of the accommodating space 300 located on the outer periphery of the core housing 41. With this setup, the resonance frequency between the sound waves generated by the transducer device 42 and the passage member 36 is relatively high, which helps to mitigate abrupt changes in sound waves in the low-frequency band, contributing to interference cancellation of distant-field sound leakage and reducing the occurrence of sound leakage phenomena.

[0140] In short, by setting the volume of the mounting space 410 to be smaller than the volume of the housing space 300, and by setting the volume of the sound conductor passage 360 ​​to be smaller than the volume of the housing space 300, the sound waves generated by the transducer device 42 will have a relatively high resonance frequency with the core housing 41 and the passage member 36 during conduction. As a result, the sound waves generated by the transducer device 42 will be less likely to resonate with the members in the conduction path during conduction, and furthermore, the phenomenon of sound leakage due to resonance will be reduced.

[0141] Preferably, in some embodiments, the volume of the sound guide passage 360 ​​is smaller than the volume of the mounting space 410, which further improves the resonance frequency between the sound waves and the passage member 36, making it less likely for the passage member 36 to resonate with the sound waves and thus improving the sound leakage phenomenon.

[0142] In some embodiments, the housing assembly 30 includes a main housing 31 with an open end and a main cover 32 covering the open end 301 of the main housing 31. Such an arrangement allows the main cover 32 to be assembled to the main housing 31 after the battery, electrical control board, control circuit and bone conduction speaker 40 have been assembled with the main housing 31 or main cover 32 during the assembly process of the speaker assembly 3. This arrangement facilitates assembly and helps improve assembly efficiency. The core housing 41 is supported by the main housing 31 or main cover 32, and preferably the core housing 41 may be integrally molded with the main cover 32 or main housing 31. The main cover 32 is provided with an opening that communicates with the housing space 300, and at least a portion of the bone conduction speaker 40 can pass through the opening in the main cover 32 and make contact with a person's face. At least a portion of the passage member 36 is located in the main cover 32, and the main cover 32 can be used to mount the passage member 36 or can be integrally molded with at least a portion of the passage member 36.

[0143] In some embodiments, as shown in Figure 19, the passage member 36 includes a first passage portion 361 located in the main cover 32 and a second passage portion 362 located in the main housing 31. When the main cover 32 and the main housing 31 are assembled, the first passage portion 361 and the second passage portion 362 engage with each other to form a sound-conducting passage 360. For example, the first passage portion 361 may be a through groove installed in the main cover 32, and the second passage portion 362 may be a through groove installed in the main housing 31, and when the main cover 32 and the main housing 31 are assembled, the two passages are joined together to form a complete sound-conducting passage 360. The first passage section 361 and the second passage section 362 may be a first passage member 36 and a second passage member 36 attached to the main cover 32 and the main housing 31, respectively, or they may be a first through groove and a second through groove processed or injection-molded into the main cover 32 and the main housing 31, and are not specifically limited thereto. This method simplifies the assembly of the passage members 36, and combining the process of forming the sound guide passage 360 ​​with the assembly process of the main cover 32 and the main housing 31 helps to improve the assembly efficiency of the speaker assembly 3.

[0144] In some embodiments, as shown in Figures 19 and 20, the speaker assembly 3 includes an air conduction speaker 50 installed within a housing space 300. The air conduction speaker 50 is provided with a first sound outlet 330, which radiates sound to the outside. The housing assembly 30 is provided with a second sound outlet 321 that communicates with the housing space 300, and the sound waves generated by the air conduction speaker 50 are output to the outside through the second sound outlet 321 and can then enter a person's ear by air conduction. The first sound outlet 330 and the second sound port 350 are spaced apart, which reduces the mutual influence between the sound radiation from the second sound port 350 of the bone conduction speaker 40 and the sound radiation from the air conduction speaker 50, thereby improving the acoustic performance of the speaker assembly 3. Specifically, the housing assembly 30 is provided with an opening that communicates with the accommodation space 300, and the bone conduction speaker 40 includes a vibration transmission plate 424, which is connected to a transducer device 42 and at least a portion of which protrudes outward from the opening and is in close contact with the person's face. When observed along the vibration direction of the vibration transmission plate 424, the second sound emission port 321 is located between the vibration transmission plate 424 and the tragus, and with this arrangement, the sound emission position of the air conduction speaker 50 is closer to the ear canal, and the sound waves generated by the air conduction speaker 50 can enter the ear canal at a closer distance, reducing losses in the sound wave propagation process and further improving the acoustic performance of the speaker assembly 3.

[0145] In some embodiments, the housing assembly 30 specifically includes a main housing 31 and a main cover 32, the main cover 32 covering the open end of the main housing 31, and a second sound outlet 321 installed in the main cover 32. Such an installation allows the main cover 32 to be assembled with the main housing 31 after the battery, electrical control board, control circuit, air conduction speaker 50 and bone conduction speaker 40 have been assembled with the main housing 31 or main cover 32 during the assembly process of the speaker assembly 3. Such an arrangement facilitates assembly and helps improve assembly efficiency.

[0146] As shown in Figures 21 and 23, the core housing 41 is supported by the main housing 31 or the main cover 32, and preferably the core housing 41 may be integrally molded with the main cover 32 or the main housing 31. The main cover 32 is provided with an opening that communicates with the accommodating space 300, and the core housing 41 and the vibration transmission plate 424 are at least partially exposed through the opening and come into close contact with a person's face by passing through the opening provided in the main cover 32. The main housing 31 includes a bottom wall 311 and a circumferential side wall 312 connected to the bottom wall 311, forming an accommodating space 300 with one end open. The second sound guide hole 350 is located in the circumferential side wall 312, and sound waves emanating from the first sound guide hole 4106 can be conducted to the outside by passing through the circumferential side wall 312 of the main housing 31. By installing a second sound emission port 321 for the air conduction speaker 50 and an opening for the bone conduction speaker 40 on the main cover 32, the vibrations of the bone conduction speaker 40 and the vibrations of the air conduction speaker 50 can be transmitted to the user on one side of the main cover 32 through close contact with the person's face and air conduction, respectively, and the speaker assembly 3 according to the present invention can have excellent acoustic performance.

[0147] In some embodiments, the air conduction speaker 50 is inserted into the housing space 300 from the open end 301 of the main housing 31, and the air conduction speaker 50 is further provided with a first pressure relief port 331, and a second pressure relief port 304 corresponding to the first pressure relief port 331 is provided in the bottom wall 311. In the process of the air conduction speaker 50 generating sound waves, changes in internal air pressure may occur, and by providing the first pressure relief port 331, the internal air pressure can be balanced when the air conduction speaker 50 generates sound. The second pressure relief port 304 can communicate with the outside of the first pressure relief port 331, thereby allowing outside air to enter the air conduction speaker 50 through the second pressure relief port 304 and the first pressure relief port 331. The first pressure relief port 331 and the second pressure relief port 304 may communicate via the housing assembly 30, or by providing a communicating member in the housing space 300, and are not specifically limited here.

[0148] Furthermore, the first sound outlet 330 and the first pressure relief port 331 are positioned opposite each other along the insertion direction of the air conduction speaker 50 into the main housing 31. In this way, the sound radiation direction of the air conduction speaker 50 is opposite to the sound radiation direction of the first pressure relief port 331, thereby reducing the impact of sound leakage from the first pressure relief port 331 on the sound radiation of the first sound outlet 330 and improving the acoustic performance of the speaker assembly 3.

[0149] In some embodiments, the core housing 41 is rotatably supported on the housing assembly 30 and can rotate relative to the housing assembly 30 along a predetermined axis of rotation. With such an installation, when the bone conduction speaker 40 is in close contact with the person's face while the earphone 1 is worn, the core housing 41 and the vibration transmission plate 424 can rotate in cooperation with the pressure of the wearing member and the supporting force that the person's face exerts on the bone conduction speaker 40. This allows the vibration transmission plate 424 to be in closer contact with the person's face, the contact pressure between the vibration transmission plate 424 and the person's face to become more uniform, and the bone conduction speaker 40 to achieve a higher sound transmission effect. The vibration direction and axis of rotation of the air conduction speaker 50 are parallel to each other, while the vibration direction and axis of rotation of the bone conduction speaker 40 are perpendicular to each other. With this installation, as the bone conduction speaker 40 rotates, the vibration direction of the bone conduction speaker 40 is perpendicular to the axis of rotation, so the vibration direction of the bone conduction speaker 40 is always perpendicular to the vibration direction of the air conduction speaker 50. This layout reduces the influence of the vibration of the bone conduction speaker 40 on the vibration of the air conduction speaker 50, making the vibrations of both more independent and improving the acoustic performance of the speaker assembly 3.

[0150] As shown in Figure 24, an embodiment of the present invention provides a speaker assembly 3. The speaker assembly 3 includes a housing assembly 30, a bone conduction speaker 40, and an air conduction speaker 50. The housing assembly 30 includes a main housing 31 that forms a housing space 300 with one end open. The housing space 300 can accommodate the bone conduction speaker 40 and the air conduction speaker 50, and the housing assembly 30 can provide mechanical support to the bone conduction speaker 40, and the housing space 300 can accommodate components for driving and operating the bone conduction speaker 40, such as a battery, an electrical control board, or a control circuit. The bone conduction speaker 40 includes a core housing 41 and a transducer device 42. The core housing 41 is rotatably supported by the main housing 31 and a portion of it is located within the housing space 300. While the earphone 1 is being worn, the bone conduction speaker 40 comes into close contact with the person's face. Due to the cooperation of the pressure from the wearing material and the support force exerted by the person's face on the bone conduction speaker 40, the core housing 41 can rotate. This causes the vibration transmission plate 424 of the bone conduction speaker 40 to come into closer contact with the person's face, the contact pressure between the vibration transmission plate 424 and the person's face becomes more uniform, and the bone conduction speaker 40 achieves a higher sound transmission effect.

[0151] In some embodiments, the core housing 41 is provided with a mounting space 410, the volume of which is smaller than the volume of the housing space 300. The transducer device 42 is installed within the mounting space 410. If the transducer device 42 is directly mounted in the larger housing space 300, the resonance frequency between the sound waves generated by the transducer device 42 and the housing assembly 30 will be relatively low. In this case, during the operation of the bone conduction speaker 40, the sound waves generated by the transducer device 42 and the housing assembly 30 are very prone to resonance. On the one hand, sound leakage increases, and on the other hand, the sound wave frequency response changes rapidly, making it impossible to adequately cancel out the sound leakage. Furthermore, if the resonance frequency is relatively low, it is not possible to guarantee a balanced acoustic performance of the bone conduction speaker 40. In the embodiment of the present invention, a core housing 41 is installed to house the transducer device 42, but the housing assembly 30 houses the core housing 41 and other parts. With this installation, the small mounting space 410 is separated from the larger housing space 300 by the core housing 41, and the resonance frequency between the sound waves generated by the transducer device 42 and the cavity formed by the small core housing 41 in the mounting space 410 becomes relatively high. In this case, on the one hand, the sound waves generated by the transducer device 42 are less likely to resonate with the core housing 41, and on the other hand, the abrupt changes that occur in the low frequency band due to resonance in the sound waves generated by the transducer device 42 can be reduced. This helps to cancel out the interference between sound leakage from the vibration transmission plate 424 and sound leakage from the sound guide hole 4106, which helps to improve the sound leakage phenomenon of the speaker assembly 3 and improve the sound quality effect of the speaker assembly 3.

[0152] In some embodiments, as shown in Figures 21 to 24, the core housing 41 is provided with sound guide holes 4106 that communicate with the mounting space 410. The sound guide holes 4106 can connect the mounting space 410 to the outside, and the pressure changes caused by vibrations of the transducer device 42 within the mounting space 410 can be balanced by the sound guide holes 4106. In some cases, the sound conducted from the transducer device 42 to the outside through the sound guide holes 4106 is in opposite phase to the sound leakage generated by the transducer device 42, so the sound leakage and the sound radiated from the sound guide holes 4106 can cancel each other out, thereby improving the sound leakage phenomenon of the speaker assembly 3.

[0153] In some embodiments, when the speaker assembly 3 is installed, the sound guide hole 4106 remains exposed to the open end of the main housing 31. Preferably, the sound guide hole 4106 may be partially exposed to the open end of the main housing 31, i.e., part of the sound guide hole 4106 may communicate directly with the outside, and the other part may communicate with the housing space 300 or the opening of the main housing 31. Preferably, the sound guide hole 4106 may be fully exposed to the open end of the main housing 31, i.e., the sound guide hole 4106 may communicate directly with the outside without going through the housing space 300. Specifically, the core housing 41 includes a bottom wall 411 and a circumferential side wall 412 connected to the bottom wall 411 to form the mounting space 410. Part of the circumferential side wall 412 and the bottom wall 411 are located within the housing space 300, and the circumferential side wall 412 further includes a portion that is exposed to the main housing 31 from the open end 301 when installed. The sound guide holes 4106 are located on a portion or all of the exposed side wall 412. In other words, the sound guide holes 4106 installed in the core housing 41 may communicate directly with the outside without passing through the housing space 300. By conducting sound waves in the mounting space 410 directly to the outside without passing through the housing space 300, the sound guide holes 4106 reduce interference of sound waves with the internal components of the housing space 300 and reduce the possibility of sound waves resonating with the housing assembly 30 after entering the housing space 300, which helps to improve the sound leakage phenomenon of the speaker assembly 3. In some embodiments, the ratio of the elongation length to the width of the sound guide holes 4106 is 3 to 8, for example, 5 to 7, specifically, for example, 5.5, 6, or 6.5. Having an appropriate elongation length and width allows sound waves to be transmitted more easily, and having an appropriate resonant frequency for sound waves in the sound guide holes 4106 helps to improve the acoustic performance of the speaker assembly 3.

[0154] In some embodiments, the main housing 31 is fitted with a first rotating shaft mechanism 3111 and a second rotating shaft mechanism 3112 that are opposite to each other. A third rotating shaft mechanism 4101 and a fourth rotating shaft mechanism 4102 are respectively fitted on opposite sides of the circumferential side wall 412, and the third and fourth rotating shaft mechanisms 4101 and 4102 are fitted extending along a predetermined axis. The first rotating shaft mechanism 3111 engages with the third rotating shaft mechanism 4101, and the second rotating shaft mechanism 3112 engages with the fourth rotating shaft mechanism 4102 to rotatably support the core housing 41 in the main housing 31. The first rotating shaft mechanism 3111 and the third rotating shaft mechanism 4101 constitute a rotating pair, and the second rotating shaft mechanism 3112 and the fourth rotating shaft mechanism 4102 constitute a rotating pair. Taking the first rotating shaft mechanism 3111 and the third rotating shaft mechanism 4101 as examples, the configuration of the rotating pair may be such that a hole-shaped or groove-shaped first rotating shaft mechanism 3111 is formed in the main housing 31, an axial third rotating shaft mechanism 4101 is installed in the circumferential side wall 412, and the rotating pair is formed by inserting the third rotating shaft mechanism 4101 into the first rotating shaft mechanism 3111. Alternatively, a hole-shaped or groove-shaped third rotating shaft mechanism 4101 may be formed in the circumferential side wall 412, an axial first rotating shaft mechanism 3111 is installed in the main housing 31, and the rotating pair is formed by inserting the first rotating shaft mechanism 3111 into the third rotating shaft mechanism 4101. The fitting of the first rotating shaft mechanism 3111 and the third rotating shaft mechanism 4101 may be achieved by a mechanism such as a bearing, damper, or ratchet. The same applies to the second rotating shaft mechanism 3112 and the fourth rotating shaft mechanism 4102, and they will not be described in detail.

[0155] In some embodiments, the vibration direction of the transducer device 42 is outward, directed outwards from the housing space 300, and in this outward direction, the sound guide hole 4106 is located above the third and fourth rotation axis mechanisms 4101 and 4102. By positioning the sound guide hole 4106 above the third and fourth rotation axis mechanisms 4101 and 4102, the shielding of the sound guide hole 4106 by the third and fourth rotation axis mechanisms 4102 can be reduced, the exposure of the sound guide hole 4106 can be maintained during the rotation of the core housing 41 relative to the main housing 31, and sound waves conducted from the sound guide hole 4106 can be directly conducted to the outside.

[0156] In some embodiments, the number of sound guide holes 4106 is four, with two sound guide holes 4106 located on opposite sides of the circumferential side wall 412, respectively. By installing multiple sound guide holes 4106 in the circumferential side wall 412 of the core housing 41, sound waves generated by the transducer device 42 can be conducted to the outside along multiple different directions, optimizing the sound leakage improvement effect of the sound guide holes 4106. The third rotation axis mechanism 4101 or the fourth rotation axis mechanism 4102 is located between two sound guide holes 4106 on the same side in the circumferential direction. In other words, by offsetting the sound guide holes 4106 and the third rotation axis mechanism 4101 or the fourth rotation axis mechanism 4102 in the core housing 41, the sound radiation from the sound guide holes 4106 and the rotation of the third rotation axis mechanism 4101 and the fourth rotation axis mechanism 4102 do not interfere with each other, improving the reliability of the use of the speaker assembly 3.

[0157] In some embodiments, the main housing 31 includes a bottom wall 311 and a circumferential side wall 312 connected to the bottom wall 311 to form the housing space 300. The bone conduction speaker 40 includes a vibration transmission plate 424 and a first vibration transmission sheet 45. The transducer device 42 includes a bracket 421 around which a coil is wound and which can support and maintain the shape of the coil. When the transducer device 42 is operating, the coil can be driven by the action of an electric current and a magnetic field to vibrate the bracket 421. The first vibration transmission sheet 45 connects the bracket 421 to the core housing 41 so as to elastically suspend the transducer device 42 within the mounting space 410, and as the bracket 421 vibrates, the first vibration transmission sheet 45 can attenuate the vibrations transmitted from the bracket 421 to the core housing 41 to reduce sound leakage. The bracket 421 is inserted and fitted into the vibration transmission plate 424 along the direction of the distance between the bracket 421 and the bottom wall 311, and the vibration of the bracket 421 drives the vibration transmission plate 424 to vibrate, and the vibration transmission plate 424 can transmit the vibration to a person's face.

[0158] Furthermore, as shown in Figures 22 and 23, a through hole 4110 is provided in the bottom wall 411, facing the bracket 421. The through hole 4110 connects the mounting space 410 and the housing space 300, and is positioned so that when the bracket 421 is located in the mounting space 410, a support jig can be inserted into the mounting space 410 through the through hole 4110 to support the bracket 421. The transducer device 42 in this application is suspended in the mounting space 410 via a first vibration transmission sheet 45. During the assembly process, in order to reduce unexpected deformation of the first vibration transmission sheet 45, the transducer device 42 must be placed in the mounting space 410 before the first vibration transmission sheet 45 is attached, and then the first vibration transmission sheet 45 must be connected to the bracket 421 and the core housing 41, respectively. Before the first vibration transmission sheet 45 is attached, the transducer device 42 needs to be supported by an additional jig to position it in the ideal assembly position. By installing a through-hole 4110 in the bottom wall 411 and inserting a jig through it, the first vibration transmission sheet 45 can provide support to the bracket 421 when it is not installed, thereby supporting the transducer device 42 in an ideal position before connecting the first vibration transmission sheet 45 to the bracket 421 and the core housing 41. After connecting the first vibration transmission sheet 45 to the bracket 421 and the core housing 41, the transducer device 42 can be elastically suspended in the mounting space 410, and then the jig can be removed from the through-hole 4110. This method facilitates the assembly of the transducer device 42 and the first vibration transmission sheet 45 and improves the success rate of assembly. On the other hand, the through-hole 4110 can connect the mounting space 410 to the housing space 300 or the outside, thereby further assisting the sound radiation of the sound guide hole 4106 and achieving the effect of reducing sound leakage.

[0159] In some embodiments, when observed along the vibration direction of the transducer device 42, the bone conduction speaker 40 has a long axis and a short axis, and the dimension of the bone conduction speaker 40 along the long axis is larger than the dimension of the bone conduction speaker 40 along the short axis. Such an arrangement facilitates the fitting of the bone conduction speaker 40 to a person's face, increases the vibration transmission area, and improves wearing comfort without making the volume of the bone conduction speaker 40 too large. Furthermore, there are two through holes 4110, and the two through holes 4110 are spaced apart along the long axis. By spacing the two through holes 4110 along the long axis, it becomes easier to insert the fixture simultaneously and jointly support the bracket 421, further improving the success rate of assembly.

[0160] In some embodiments, as shown in Figures 22 and 23, the bottom wall 411 is further provided with mounting holes 4111 adjacent to the inner wall surface of the circumferential side wall 412. The mounting holes 4111 are spaced apart from the through holes 4110 and connect the mounting space 410 to the housing space 300. The mounting holes 4111 are positioned to allow the acoustic resistance mesh to be inserted from the mounting holes 4111 into the mounting space 410, making close contact with the inner wall surface of the circumferential side wall 412 and covering the sound guide holes 4106. In some other embodiments, the bottom wall 411 does not need to have the mounting holes 4111, and the acoustic resistance mesh can enter the core housing 41 from the open end 413 of the core housing 41 and then be mounted to cover the sound guide holes 4106. Because the sound guide hole 4106 is directly connected to the outside, external dust and other particles can easily enter the mounting space 410 through the sound guide hole 4106, affecting the operation of the transducer device 42. The acoustic resistance mesh allows sound to pass through while also providing a barrier against dust and other particles, and can also adjust the acoustic effect. By installing the acoustic resistance mesh in the mounting space 410 and covering the sound guide hole 4106, interference from external dust and other particles into the mounting space 410 can be reduced, improving the reliability of the operation of the speaker assembly 3. On the other hand, the mounting hole 4111 can also connect the mounting space 410 to the housing space 300 or the outside, which helps reduce sound leakage. Furthermore, the mounting hole 4111 is installed corresponding to the sound guide hole 4106, and the mounting hole 4111 and the corresponding sound guide hole 4106 are close to each other on both sides of the connection edge between the bottom wall 411 and the peripheral side wall 412. This installation facilitates the installation of the acoustic resistance mesh and improves the success rate of assembly. The acoustic resistance mesh may include, for example, at least one of a steel mesh and a mesh cloth.

[0161] In some embodiments, the distance between the mounting hole 4111 and the corresponding sound guide hole 4106 in the vibration direction of the bone conduction speaker 40 is 1.5 to 5.5 mm, for example, 2 mm, 2.9 mm, 3.1 mm, 3.3 mm, 3.5 mm, or 4 mm. Having an appropriate distance between the mounting hole 4111 and the sound guide hole 4106 ensures ease of assembly on the one hand, and on the other hand, it prevents insufficient rigidity of the corresponding parts of the core housing 41 between them due to the distance between the mounting hole 4111 and the sound guide hole 4106 being too close.

[0162] The above description is merely an example of the present application and is not intended to limit the scope of the patent. All equivalent structural or process transformations, or direct or indirect applications to other related technical fields, based on the description and drawings of the present application are equally included within the scope of the patent protection of the present application. [Explanation of Symbols]

[0163] 1 earphones 2. Mounting Assembly 21 Headband Assembly 22 Telescopic Assembly 23 Torsion Assembly 3. Speaker Assembly 30 Housing Assembly 40 Bone conduction speakers 442 Flexible adhesive material

Claims

1. A speaker assembly comprising a housing assembly and a bone conduction speaker, wherein the housing assembly is provided with a housing space, and the bone conduction speaker comprises a core housing and a transducer device, wherein the core housing is supported by the housing assembly and at least a portion of it is located within the housing space, the core housing is provided with a mounting space, the volume of the mounting space is smaller than the volume of the housing space, the transducer device is installed within the mounting space, the core housing is provided with a first sound guide hole communicating with the mounting space, the housing assembly is provided with a second sound guide hole communicating with the first sound guide hole, and the first sound guide hole communicates with the outside through the second sound guide hole.

2. The speaker assembly according to claim 1, wherein the first sound conductor and the second sound conductor each communicate with the housing space located on the outer circumference of the core housing.

3. The speaker assembly according to claim 1, wherein the housing assembly includes a passage member having a sound-conducting passage formed therein, the passage member being located within the housing space, both ends of the sound-conducting passage communicating with a first sound-conducting hole and a second sound-conducting hole, respectively, and the volume of the sound-conducting passage is smaller than the volume of the housing space located on the outer periphery of the core housing.

4. The speaker assembly according to claim 3, comprising a housing assembly including a main housing having one end open and a main cover covering the open end of the main housing, the core housing being supported by the main housing, the main cover having an opening communicating with the housing space, the bone conduction speaker including a vibration transmission plate, the vibration transmission plate being connected to the transducer device and at least a portion of which protrudes outward from the opening and is in close contact with a person's face, and at least a portion of the passage member being located in the main cover.

5. The speaker assembly according to claim 4, wherein the passage member includes a first passage portion located in the main cover and a second passage portion located in the main housing, and when the main cover and the main housing are assembled, the first passage portion and the second passage portion engage with each other to form the sound conductor passage.

6. The speaker assembly according to claim 1, wherein the first sound guide hole and the second sound guide hole are installed facing each other along the radial direction of the transducer device.

7. The number of the first sound guide holes is multiple, and the multiple first sound guide holes are installed at intervals along the circumferential direction of the core housing on the circumferential side wall of the core housing, and / or The speaker assembly according to claim 1, wherein the number of second sound ducts is plurality, and the plurality of second sound ducts are installed at intervals along the circumferential direction of the housing assembly on the circumferential sidewall of the housing assembly.

8. The speaker assembly according to claim 1, comprising an air conduction speaker having a first sound outlet, wherein the housing assembly is provided with a second sound outlet communicating with the housing space, the first sound outlet and the second sound outlet are spaced apart, the air conduction speaker is installed in the housing space and radiates sound outward from the first sound outlet, the housing assembly is provided with an opening communicating with the housing space, the bone conduction speaker includes a vibration transmission plate, the vibration transmission plate is connected to the transducer device and at least a portion of it protrudes outward from the opening and is in close contact with a person's face, and when observed along the vibration direction of the vibration transmission plate, the second sound outlet is located between the vibration transmission plate and the tragus.

9. The speaker assembly according to claim 8, further comprising a main housing and a main cover, wherein the core housing is supported by the main housing, the main housing includes a bottom wall and a circumferential side wall connected to the bottom wall, forming the housing space with one end open, the main cover covers the open end of the main housing, the second sound outlet is installed in the main cover, the opening is installed in the main cover, and the core housing and the vibration transmission plate are at least partially exposed from the opening.

10. The speaker assembly according to claim 9, wherein the air conduction speaker is inserted into the housing space from the open end of the main housing, the air conduction speaker is further provided with a first pressure relief port, the first sound emission port and the first pressure relief port are positioned on opposite sides of each other along the insertion direction of the air conduction speaker into the main housing, and the bottom wall is provided with a second pressure relief port corresponding to the first pressure relief port.

11. The speaker assembly according to claim 8, wherein the core housing is rotatably supported in the housing assembly and is rotatable relative to the housing assembly along a predetermined axis of rotation, the vibration direction of the air conduction speaker and the axis of rotation are parallel to each other, and the vibration direction of the bone conduction speaker and the axis of rotation are perpendicular to each other.

12. A speaker assembly comprising a housing assembly, a bone conduction speaker, and an air conduction speaker, wherein the housing assembly includes a main housing for forming a housing space with one end open, the bone conduction speaker includes a core housing and a transducer device, the core housing being rotatably supported by the main housing and partially located within the housing space, the core housing having a mounting space, the volume of the mounting space being smaller than the volume of the housing space, the transducer device being installed within the mounting space, the core housing having a sound guide hole communicating with the mounting space, and the sound guide hole remaining exposed to the open end of the main housing when the speaker assembly is mounted.

13. The speaker assembly according to claim 12, wherein the core housing includes a housing bottom wall and a housing circumferential wall connected to the housing bottom wall, forming the mounting space, a portion of the housing circumferential wall and the housing bottom wall are located within the housing space, and the housing circumferential wall includes a portion that is exposed from the open end relative to the main housing in the mounted state, and the sound guide hole is located in the exposed portion.

14. The main housing is equipped with a first and second rotating shaft mechanism facing each other, and a third and fourth rotating shaft mechanism are respectively installed on opposite sides of the circumferential side wall of the housing, the third and fourth rotating shaft mechanisms are installed extending along a predetermined axis, the first rotating shaft mechanism engages with the third rotating shaft mechanism, and the second rotating shaft mechanism engages with the fourth rotating shaft mechanism, thereby rotatably supporting the core housing on the main housing. The speaker assembly according to claim 13, wherein the vibration direction of the transducer device is an outward direction directed toward the outside of the housing space, and in the outward direction, the sound guide hole is located above the third rotation axis mechanism and the fourth rotation axis mechanism.

15. The speaker assembly according to claim 14, wherein the number of sound ducts is four, and the four sound ducts are located in pairs on opposite sides of the circumferential side wall of the housing, and the third rotation axis mechanism is located between the two sound ducts on the same side in the circumferential direction.

16. The speaker assembly according to claim 13, wherein the main housing includes a bottom wall and a circumferential side wall connected to the bottom wall, forming the housing space; the bone conduction speaker includes a vibration transmission plate and a first vibration transmission sheet; the transducer device includes a bracket, the first vibration transmission sheet connects the bracket to the core housing, and elastically suspends the transducer device within the mounting space; the bottom wall of the housing is provided with a through hole positioned opposite the bracket, the through hole connecting the mounting space and the housing space; the bracket is fitted to the vibration transmission plate along the direction of the distance between the bracket and the bottom wall; and the through hole is positioned such that a support jig can be inserted into the mounting space through the through hole to support the bracket when the bracket is positioned in the mounting space.

17. The speaker assembly according to claim 16, wherein, when observed along the vibration direction of the transducer device, the bone conduction speaker has a long axis direction and a short axis direction, the dimension of the bone conduction speaker along the long axis direction is greater than the dimension of the bone conduction speaker along the short axis direction, the number of through holes is two, and the two through holes are spaced apart along the long axis direction.

18. The speaker assembly according to claim 16, wherein the bottom wall of the housing is further provided with mounting holes adjacent to the inner wall surface of the circumferential side wall of the housing, the mounting holes are spaced apart from the through holes, the mounting holes connect the mounting space and the housing space, and the mounting holes are positioned to allow the acoustic resistance mesh to be inserted from the mounting holes into the mounting space, to be in close contact with the inner wall surface of the circumferential side wall of the housing, and to cover the sound guide holes.

19. The speaker assembly according to claim 18, wherein the mounting holes are installed in correspondence with the sound guide holes, and the mounting holes and the corresponding sound guide holes are in close proximity to each other on both sides of the connection edge between the housing bottom wall and the housing peripheral side wall.

20. An earphone comprising a mounting assembly and a speaker assembly according to any one of claims 1 to 19, wherein the mounting assembly is fixedly connected to a housing assembly.

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