CN115002594A - Wearable audio output device - Google Patents

Abstract

The embodiment of the application provides a wearable audio output device. The wearable audio output device includes at least a housing, a transduction unit, and a water-tight valve assembly. The shell is provided with an accommodating cavity and a sound outlet hole communicated with the accommodating cavity. The transduction unit is arranged in the accommodating cavity. The transduction unit includes an air conduction transducer and a bone conduction transducer. The audio signal formed by the air conduction transducer is output through the sound outlet hole. The audio signal formed by the bone conduction transducer is output through the housing. The waterproof valve assembly is arranged on the shell. The sound outlet hole is opened or closed through the waterproof valve component. The wearable audio output device of the embodiment of the application can realize the output of sound low-frequency range and high-frequency range and has good waterproof performance.

Description

Wearable audio output device

Technical Field

The embodiment of the application relates to the technical field of terminals, in particular to a wearable audio output device.

Background

With the rapid development of the wearable audio output device industry such as earphones or hearing aids, consumers have increasingly high demands for waterproof performance and sound quality of earphones or hearing aids. Take the earphone as an example, have the bone conduction earphone that waterproof performance is excellent, also have the effectual gas conduction earphone of tone quality. The bone conduction headset realizes audio signal transmission by vibrating the skull. The audio signal is transmitted to the inner ear through the skull or the jaw bone, and can not pass through the external auditory canal and the tympanic membrane, so that the tympanic membrane and the auditory bone chain are not easily damaged. Bone conduction headphones are also useful for users with damaged external ear canal or tympanic membrane structures. Bone conduction headsets are also useful in environments that are not suitable for conducting air (e.g., underwater environments, etc.). The air conduction earphone converts an electric signal into air vibration, and a formed audio signal enters human ears through an external auditory canal, vibrates eardrums and is detected by the inner ears.

However, the bone conduction headset is mainly suitable for conducting low frequency sounds and is not suitable for conducting high frequency sounds, so that it is not easy to obtain good sound quality using the bone conduction headset. Since the air conduction headset needs to transmit sound through air vibration, the air conduction headset needs to be communicated with the atmospheric environment, so that the waterproof performance of the air conduction headset is deviated, and the adaptability to water scenes (such as bathing, swimming or diving) is poor.

Disclosure of Invention

The embodiment of the application provides a wearable audio output device, can realize the output of sound low-frequency range and high-frequency range and have good waterproof performance.

A wearable audio output device is provided that includes at least a housing, a transduction unit, and a water-tight valve assembly.

The shell is provided with an accommodating cavity and a sound outlet hole communicated with the accommodating cavity. The transduction unit is arranged in the accommodating cavity. The transduction unit includes an air conduction transducer and a bone conduction transducer. And the audio signal formed by the air conduction transducer is output through the sound outlet hole. The audio signal formed by the bone conduction transducer is output through the housing. A water-resistant valve assembly is disposed in the housing. The sound outlet hole is opened or closed through the waterproof valve component.

In the wearable audio output device of the embodiment of the application, the transduction unit includes an air conduction transducer and a bone conduction transducer. Can export audio signal to the user through gas conduction transducer, bone conduction transducer to can realize the output of sound low-frequency range and high-frequency range, be favorable to guaranteeing the integrality of sound audio frequency range. The waterproof valve component can be opened or closed to the sound outlet hole of the shell, so that when the waterproof valve component closes the sound outlet hole of the shell, the wearable audio output device can have good waterproof performance, and the possibility that external water enters the shell through the sound outlet hole is reduced. The wearable audio output device of the embodiment of the application can open or close the sound outlet hole of the shell through the waterproof valve assembly according to different use environments, and the air conduction transducer and the bone conduction transducer can be switched in work, so that the adaptability of the wearable audio output device is improved, and the application scene of the wearable audio output device is widened.

In one possible embodiment, the watertight valve assembly comprises a valve and a driving member. The valve is connected with the driving part. The driving component drives the valve to move along the axial direction of the sound outlet hole.

The driving part drives the valve to act so as to open or close the sound outlet hole. The valve can be automatically controlled to move through the driving part, and convenience and accuracy of opening or closing the valve can be improved.

In a possible embodiment, the valve is arranged outside the sound outlet hole. And along the axial direction of the sound outlet hole, the orthographic projection of the sound outlet hole is positioned in the orthographic projection of the valve.

In one possible embodiment, the housing further comprises a receiving hole. The sound outlet hole is communicated with the accommodating hole. At least a portion of the valve is disposed within the receiving aperture.

The valve can be protected by the shell, so that the possibility that the valve is scratched or impacted by other external structural parts to be damaged and failed is reduced

In a possible embodiment, the watertight valve assembly further comprises a resilient member. The elastic member connects the valve and the housing. The valve moves to cause the elastic member to accumulate or release elastic potential energy.

In one possible embodiment, the elastic member includes an outer ring, an inner ring, and an elastic support. The inner ring is located within the outer ring. The elastic support body is connected with the outer ring and the inner ring. The outer ring is connected with the shell, and the inner ring is connected with the valve.

In one possible embodiment, the drive component comprises a magnetic unit and a conductive coil. The conductive coil is arranged corresponding to the magnetic unit. The valve is connected with the conductive coil. The valve is driven to act by the movement of the conductive coil relative to the magnetic unit.

In one possible embodiment, the valve comprises a piezoelectric diaphragm. The piezoelectric diaphragm is connected with the shell. The driving part includes a piezoelectric driving module. The piezoelectric membrane is electrically connected with the piezoelectric driving module. The piezoelectric membrane is driven to bend and deform by the piezoelectric driving module so as to open or close the sound outlet hole.

In the mode that waterproof valve subassembly of this application embodiment opened or closed the sound hole through piezoelectric diaphragm, because piezoelectric diaphragm self compact structure, consequently piezoelectric diaphragm occupation space is little, is favorable to reducing the space occupancy of waterproof valve subassembly to the shell.

In one possible embodiment, the transducer unit divides the receiving chamber to form a front chamber and a rear chamber. The sound outlet hole is communicated with the front cavity.

In one possible embodiment, the gas conduction transducer separates the receiving cavity to form a front cavity and a back cavity. The sound outlet hole is communicated with the front cavity. The bone conduction transducer is disposed within the posterior chamber.

In one possible embodiment, the wearable audio output device further includes a first noise reduction microphone. The first noise reduction microphone is arranged in the rear cavity. The housing includes a flow guide passage. The flow guide channel is communicated with the front cavity and the sound pick-up hole of the first noise reduction microphone.

When noise is present within the housing, the first noise reduction microphone may detect the noise and generate a noise signal. The noise signal may be transmitted to a noise reduction module of the wearable audio output device. The noise reduction module can output sound wave signals with opposite phases to the noise sound waves to offset the noise, so that the purpose of reducing the noise is achieved.

In one possible embodiment, the wearable audio output device further includes a first noise reducing microphone. The first noise reduction microphone is arranged in the front cavity. And the sound pickup hole of the first noise reduction microphone is communicated with the front cavity.

The first noise reduction microphone can be arranged in the front cavity of the shell, and the release of the installation space in the rear cavity is facilitated.

In one possible embodiment, the housing further comprises a pressure relief vent. The pressure relief hole is communicated with the rear cavity. The wearable audio output device further comprises a waterproof breathable membrane. The waterproof breathable film is connected with the shell. The waterproof breathable film covers the pressure relief hole.

The pressure relief hole allows the air flow to freely enter and exit the rear cavity, so that the pressure in the rear cavity and the atmospheric pressure of the external environment are kept relatively consistent, the possibility of unbalance of the pressure in the rear cavity is reduced, and the wearable audio output device is favorably ensured to have good tone quality and sound effect. The waterproof breathable film does not allow water to pass through so as to reduce the phenomenon that outside water enters the rear cavity from the pressure relief hole. The waterproof breathable film can allow gas to pass through, so that the pressure of the rear cavity and the atmospheric pressure of the external environment can be balanced.

In one possible embodiment, the wearable audio output device further includes a second noise reduction microphone. The second noise reduction microphone is disposed within the housing. The housing includes a via. The pick-up hole of the second noise reduction microphone corresponds to the conducting hole and is communicated with the external environment through the conducting hole.

The second noise reduction microphone is in communication connection with a noise reduction module of the wearable audio output device. The noise reduction module can acquire the first noise reduction microphone and the second noise reduction microphone of making an uproar and detect the noise signal to the sound wave signal that generates and be used for offsetting the noise, thereby realize the purpose of noise reduction, the noise reduction performance and the stability of making an uproar that further improve wearable audio output device, noise interference is reduced, promote user and use experience.

In one possible embodiment, the housing comprises a front shell and a rear shell. The front case and the rear case form the accommodation chamber. The sound outlet hole is formed in the front shell. The transduction unit is disposed at the front case.

Drawings

Fig. 1 is a schematic structural diagram of a wearable audio output device according to an embodiment of the present disclosure;

FIG. 2 is a schematic sectional view taken along A-A in FIG. 1;

FIG. 3 is an enlarged schematic view at B of FIG. 2;

fig. 4 is a schematic diagram of a partial cross-sectional structure of a wearable audio output device according to an embodiment of the present application;

fig. 5 is a schematic diagram of a partial cross-sectional structure of a wearable audio output device according to another embodiment of the present application;

fig. 6 is a schematic diagram of a partial cross-sectional structure of a wearable audio output device according to yet another embodiment of the present application;

fig. 7 is a schematic diagram of a wearable audio output device according to another embodiment of the present application, in partial cross-section;

fig. 8 is a schematic diagram of a partial cross-sectional structure of a wearable audio output device according to yet another embodiment of the present application;

fig. 9 is a schematic diagram of a partial cross-sectional structure of a wearable audio output device according to yet another embodiment of the present application;

FIG. 10 is an enlarged schematic view at C of FIG. 9;

fig. 11 is a schematic diagram of a wearable audio output device according to another embodiment of the present application, in partial cross-section;

FIG. 12 is a schematic view of a resilient member according to an embodiment of the present application;

fig. 13 is a schematic diagram illustrating a partial cross-sectional structure of a wearable audio output device according to still another embodiment of the present application;

fig. 14 is a schematic structural diagram of a wearable audio output device according to another embodiment of the present application.

Reference numerals:

10. a wearable audio output device;

20. a housing; 201. a front housing; 202. a rear housing;

21. an accommodating chamber; 21a, a front cavity; 21b, a rear cavity;

22. a sound outlet hole;

23. an accommodation hole;

24. a flow guide channel;

25. a via hole;

26. a pressure relief vent;

30. a battery;

40. a transducing unit;

41. a gas conduction transducer;

42. a bone conduction transducer;

50. a water-tight valve assembly;

51. a valve;

52. a drive member; 521. a magnetic unit; 522. a conductive coil;

53. an elastic member; 531. an outer ring; 532. an inner ring; 533. an elastic support; 533a, an arc segment; 533b, a connecting section;

60. a first noise reduction microphone;

70. a second noise reduction microphone;

80. a waterproof breathable film;

90. a flexible earplug; 91. a central bore;

100. a support leg;

200. a dust cover;

x, axial direction.

Detailed Description

The wearable audio output device in the embodiments of the present application may include a device that generates an audio signal and transmits the audio signal to a user to make the user obtain sound. The wearable audio output device may comprise an earphone or a hearing aid. The form of the wearable audio output device in the embodiment of the present application is not particularly limited.

In the embodiment of the present application, fig. 1 schematically shows the structure of the wearable audio output device 10 of the present application. Referring to fig. 1, a wearable audio output device 10 is taken as an example for explanation. The earphone may be, for example, a wireless earphone, a semi-in-ear wireless earphone, or an in-ear wireless earphone. When the user wears and uses the wearable audio output device 10, a portion of the wearable audio output device 10 may be inserted into the external auditory canal of the user, so that the user may obtain an audio signal output by the wearable audio output device 10.

Fig. 2 is a sectional view taken along a-a direction in fig. 1. Fig. 3 is an enlarged view of fig. 2 at B. Referring to fig. 2 and 3, the wearable audio output device 10 of the present application includes a housing 20, a battery 30, a main board (not shown), and electronics (not shown).

When the user wears the wearable audio output device 10 of the present application, a portion of the housing 20 may be inserted into the external auditory canal of the user. The portion of the housing 20 inserted into the external auditory canal of the user may be in contact with the skin of the user. A battery 30 is disposed within the housing 20 and is used to provide electrical power to the electrical consumer devices. The motherboard and electronics are disposed within the housing 20. The electronic device is arranged on the mainboard. The motherboard may be a Printed Circuit Board (PCB). The electronic device may be soldered to the main board through a soldering process. Electronic devices include, but are not limited to, a Central Processing Unit (CPU), a smart algorithm chip, or a Power Management IC (PMIC).

The wearable audio output device 10 of the present application further includes a transduction unit 40. The housing 20 has a containing chamber 21 and a sound outlet hole 22 communicating with the containing chamber 21. The accommodating cavity 21 of the housing 20 can be communicated with the external environment through the sound outlet hole 22. The transducer unit 40 is disposed in the receiving cavity 21 of the housing 20. The transduction unit 40 includes an air conduction transducer 41 and a bone conduction transducer 42.

The air conduction transducer 41 is used to facilitate detection by the user's auditory tissues by converting the mechanical vibration signal into an air vibration. The audio signal formed by the air conduction transducer 41 can be output to the external auditory canal of the user through the sound output hole 22. The bone conduction transducer 42 is used to facilitate detection by the user's auditory tissues by converting the mechanical vibration signal into vibrations in the user's bone. The audio signal formed by the bone conduction transducer 42 may be output through the housing 20 for contact with the skin of the user.

Illustratively, the transduction unit 40 may deliver an audio signal to the user through one of the air conduction transducer 41 and the bone conduction transducer 42 to make the user obtain a sound. Bone conduction transducer 42 may produce low frequency sounds while air conduction transducer 41 may produce high frequency sounds, so that wearable audio output device 10 of the present application may ensure the integrity of both low and high frequency bands of sound.

The wearable audio output device 10 of the present application further includes a water-tight valve assembly 50. A watertight valve assembly 50 is provided in the housing 20. The sound outlet port 22 of the housing 20 can be opened or closed by the watertight valve assembly 50. When the waterproof valve assembly 50 opens the sound outlet hole 22, the audio signal generated by the air conduction transducer 41 can be transmitted from the sound outlet hole 22 normally. When the waterproof valve assembly 50 closes the sound outlet hole 22, the air conduction transducer 41 may be in a non-operative state, while the bone conduction transducer 42 is in an operative state and may transmit audio signals through the housing 20.

For example, when the user wears the wearable audio output device 10 and is in a daily use scene such as outdoors, in an office, or on a commute road, the waterproof valve assembly 50 may be in a state of opening the sound outlet hole 22, and the air conduction transducer 41 of the wearable audio output device 10 is in an operating state to provide an audio signal to the user, so that the user can listen to a corresponding sound.

For example, when the user wears the wearable audio output device 10 and has a water scene such as sea water, a swimming pool or a bath room, the waterproof valve assembly 50 is in a state of closing the sound outlet hole 22, the air conduction transducer 41 of the wearable audio output device 10 may be in a non-operating state, and the bone conduction transducer 42 is in an operating state, so as to provide an audio signal to the user for the user to listen to a corresponding sound.

Since the internal space of the housing 20 may communicate with the external environment through the sound outlet hole 22, and the aperture of the sound outlet hole 22 is relatively large, in a water scene, if the sound outlet hole 22 is in an open state, there is a risk that external water enters the housing 20 through the sound outlet hole 22, thereby causing a situation that the wearable audio output device 10 may malfunction or be damaged. In the wearable audio output device 10 of the embodiment of the present application, the waterproof valve assembly 50 can close the sound outlet 22, which is beneficial to reduce the possibility that the external water enters the casing 20 through the sound outlet 22 in the water scene.

In the wearable audio output device 10 of the embodiment of the present application, the transduction unit 40 includes an air conduction transducer 41 and a bone conduction transducer 42. The air conduction transducer 41 and the bone conduction transducer 42 can output audio signals to a user, so that the output of low-frequency and high-frequency sound bands can be realized, and the integrity of the sound band can be favorably ensured. The waterproof valve assembly 50 can open or close the sound outlet hole 22 of the housing 20, so that when the waterproof valve assembly 50 closes the sound outlet hole 22 of the housing 20, the wearable audio output device 10 has good waterproof performance, and the possibility that external water enters the housing 20 through the sound outlet hole 22 is reduced.

The wearable audio output device 10 of the embodiment of the application can open or close the sound outlet hole 22 of the housing 20 through the waterproof valve assembly 50 according to different usage environments, and the air conduction transducer 41 and the bone conduction transducer 42 can be switched to work, so that the adaptability of the wearable audio output device 10 is improved, and the application scenarios of the wearable audio output device 10 are widened.

In some realizable manners, the watertight valve assembly 50 includes a valve 51 and a drive component 52. The valve 51 is connected to the drive member 52. A valve 51 and an actuating member 52 may be connected to the housing 20. The driving member 52 can drive the valve 51 to move along the axial direction X of the sound outlet 22. The driving member 52 drives the valve 51 to operate to open or close the sound outlet hole 22. The driving part 52 can automatically control the action of the valve 51, which is beneficial to improving the convenience and accuracy of opening or closing the valve 51.

In some examples, the initial state of the valve 51 may be an open position. The valve 51 may be controlled to switch from an open position to a closed position when in a water scene. Alternatively, the initial state of the valve 51 may be the closed position. The valve 51 may be controlled to switch from a closed position to an open position during a daily use scenario.

In some realizable ways, as shown in fig. 3, the valve 51 may be disposed outside of the sound outlet port 22. Along the axial direction X of the sound outlet hole 22, the orthographic projection of the sound outlet hole 22 is located in the orthographic projection of the valve 51, so that the orthographic projection area of the valve 51 is larger than the opening area of the sound outlet hole 22, and the valve 51 can block the opening of the sound outlet hole 22.

When the valve 51 is in the closed position, the valve 51 and the housing 20 may overlap and adhere to each other at the overlapping portion to form a water blocking area, and at this time, the valve 51 may block the sound outlet 22 from communicating with the external environment.

In some examples, when the valve 51 is in the closed position, an annular overlap area is formed between the valve 51 and the housing 20 around the opening of the sound outlet 22.

Fig. 4 schematically shows a partial cross-sectional structure of the wearable audio output device 10 of the present application. Referring to fig. 4, when the valve 51 is in the open position, the valve 51 may form a passage with the housing 20 to communicate the sound outlet 22 of the housing 20 with the external environment. The sound output by the air conduction transducer 41 can be transmitted through the sound outlet hole 22 and the passage.

In some examples, the valve 51 blocks the opening of the sound outlet hole 22 away from the receiving cavity 21. The actuating member 52 is located on the side of the valve 51 facing the receiving chamber 21. The driving member 52 may be disposed within the sound outlet hole 22. A passage is formed between the driving member 52 and the inner wall of the sound outlet hole 22 to ensure that sound can pass through the area where the driving member 52 is located.

In some realizable approaches, fig. 5 schematically shows a partial cross-sectional structure of the wearable audio output device 10 of the present application. Referring to fig. 5, the housing 20 further includes a receiving hole 23. The sound emitting hole 22 of the housing 20 communicates with the receiving hole 23. At least a portion of the valve 51 is disposed within the receiving hole 23 such that the valve 51 is protected by the housing 20, which is beneficial to reduce the possibility of damage and failure of the valve 51 due to scratching or bumping by other external structures.

When the valve 51 is in the closed position, the valve 51 may be attached to the inner wall of the receiving hole 23 to form a water blocking area, and at this time, the valve 51 may block the sound outlet hole 22 from communicating with the external environment. Fig. 6 schematically shows a partial cross-sectional structure of the wearable audio output device 10 of the present application. Referring to fig. 6, when the valve 51 is in the open position, a passage is formed between the valve 51 and the inner wall of the receiving hole 23, so that the sound outlet hole 22 of the housing 20 is communicated with the external environment. The audio signal output by the air conduction transducer 41 may be transmitted through the sound outlet hole 22 and the channel.

In some examples, the aperture of the sound emitting hole 22 may be smaller than the aperture of the receiving hole 23. For example, the receiving hole 23 may be tapered, and the valve 51 may have a tapered surface that matches the shape of the inner wall of the receiving hole 23.

In some examples, the valve 51 may be entirely located within the receiving hole 23, such that the valve 51 may be protected by the housing 20, which may help reduce the likelihood of damage failure of the valve 51 due to scratching or impact by other external structures.

In some examples, the accommodating hole 23 is located on a side of the sound emitting hole 22 away from the accommodating chamber 21 in the axial direction X of the sound emitting hole 22. The actuating member 52 is located on the side of the valve 51 facing the receiving chamber 21. The driving member 52 may be disposed within the sound outlet hole 22. A passage is formed between the driving member 52 and the sound emitting hole 22 to ensure that sound can pass through the area where the driving member 52 is located.

In some realizable manners, as shown in fig. 5 and 6, the driver member 52 may be disposed within the sound outlet hole 22. The driving part 52 includes a magnetic unit 521 and a conductive coil 522. The conductive coil 522 may be disposed corresponding to the magnetic unit 521. The valve 51 is connected to the conductive coil 522. The valve 51 is moved by the conductive coil 522 relative to the magnetic unit 521.

In some examples, the drive member 52 may be coupled to the housing 20 by a foot 100. The magnetic unit 521 may be a permanent magnet or an electromagnet. When the conductive coil 522 is energized, the conductive coil 522 may generate a magnetic field. The conductive coil 522 has two electrode terminals (not shown) for connection to an external power source. By reversing the input polarity of the two electrode terminals, the magnetic field polarity of the conductive coil 522 may be changed. Illustratively, the conductive coil 522 is disposed on a side of the valve 51 facing the magnetic unit 521.

For example, when the conductive coil 522 and the magnetic unit 521 repel each other, the conductive coil 522 may drive the valve 51 to move away from the magnetic unit 521, thereby opening the sound outlet hole 22. When the conductive coil 522 and the magnetic unit 521 attract each other, the conductive coil 522 may drive the valve 51 to move close to the magnetic unit 521, thereby closing the sound outlet hole 22.

In some realizable manners, the material of the valve 51 may be rubber or silicone. The valve 51 may be a diaphragm structure.

In some realizable approaches, fig. 7 schematically shows a partial cross-sectional structure of the wearable audio output device 10 of the present application. Referring to fig. 7, the valve 51 includes a piezoelectric diaphragm. The piezoelectric diaphragm is connected to the housing 20. The driving part 52 includes a piezoelectric driving module (not shown in the drawings). The piezoelectric membrane is electrically connected with the piezoelectric driving module. The piezoelectric diaphragm is driven by the piezoelectric driving module to be bent and deformed so as to open or close the sound outlet hole 22. The piezoelectric driving module applies voltage to the piezoelectric diaphragm, so that the piezoelectric diaphragm generates bending deformation under the action of the voltage.

In some examples, fig. 8 schematically shows a partial cross-sectional structure of the wearable audio output device 10 of the present application. Referring to fig. 8, when the piezoelectric driving module applies a voltage to the piezoelectric diaphragm, a portion of the piezoelectric diaphragm corresponding to the sound outlet 22 may be bent and deformed, for example, the piezoelectric diaphragm is folded in a direction away from the sound outlet 22 to form an air flow channel with the housing 20, so as to open the sound outlet 22. In the non-energized state of the piezoelectric diaphragm, the piezoelectric diaphragm is in a state of closing the sound output hole 22.

In some examples, a piezoelectric diaphragm may include a piezoelectric ceramic wafer and an elastic substrate. The piezoelectric ceramic wafer may be disposed on the elastic substrate.

In some examples, a portion of the piezoelectric diaphragm may be attached to the housing 20 by bonding.

In the manner that the sound outlet 22 is opened or closed by the piezoelectric diaphragm, the waterproof valve assembly 50 according to the embodiment of the present application occupies a small space due to the compact structure of the piezoelectric diaphragm, which is beneficial to reducing the space occupancy rate of the waterproof valve assembly 50 to the housing 20.

In some realizable approaches, fig. 9 schematically shows a partial cross-sectional structure of the wearable audio output device 10 of the present application. Fig. 10 is an enlarged view of fig. 9 at C. Referring to fig. 9 and 10, the waterproof valve assembly 50 further includes an elastic member 53. The elastic member 53 connects the valve 51 and the housing 20. The valve 51 moves to cause the elastic member 53 to accumulate or release elastic potential energy. The elastic member 53 accumulating elastic potential energy, and the elastic member 53 may apply driving force to the valve 51 when releasing the elastic potential energy.

In some examples, fig. 11 schematically shows a partial cross-sectional structure of the wearable audio output device 10 of the present application. Referring to fig. 11, when the driving member 52 drives the valve 51 to move to open the sound outlet hole 22, the valve 51 may apply a force to the elastic member 53, so that the elastic member 53 may accumulate elastic potential energy. When the driving member 52 stops operating, the elastic member 53 releases the elastic potential energy to apply the driving force to the valve 51, thereby driving the valve 51 to move and close the sound outlet hole 22. The elastic member 53 is arranged to keep the valve 51 in a stable position when the driving member 52 is not in operation, thereby being beneficial to reducing the possibility of high energy consumption caused by the driving member 52 being in an operating state all the time.

For example, the elastic member 53 may be disposed at a side of the valve 51 facing the sound outlet 22. Along the axial direction X of the sound outlet hole 22, the orthographic projection of the elastic piece 53 can fall into the orthographic projection of the valve 51, so that the valve 51 can shield the elastic piece 53 on one side of the elastic piece 53 back to the sound outlet hole 22, the valve 51 can protect the elastic piece 53, the possibility of bad deformation of the elastic piece 53 due to extrusion or collision of other external components is favorably reduced, the possibility of sealing failure between the valve 51 and the shell 20 due to the fact that the elastic piece 53 is not easy to recover to the original shape and the valve 51 is jacked up by the elastic piece 53 is reduced.

In some examples, fig. 12 schematically shows the structure of the elastic member 53 of the present application. Referring to fig. 12, the elastic member 53 includes an outer ring 531, an inner ring 532, and an elastic support 533. The inner ring 532 is located within the outer ring 531. The elastic supports 533 connect the outer ring 531 and the inner ring 532. The outer ring 531 may be connected to the housing 20 and the inner ring 532 may be connected to the valve 51. As the valve 51 moves, the inner ring 532 moves relative to the outer ring 531 and causes the resilient support 533 to accumulate or release elastic potential energy.

Illustratively, referring to fig. 11, the housing 20 has a recess communicating with the sound outlet hole 22. An outer ring 531 is disposed within the recess. The outer ring 531 may be bonded to the housing 20. The inner ring 532 may be bonded to the end surface of the valve 51 facing the sound outlet port 22.

Illustratively, the outer ring 531 and the inner ring 532 may both be circular ring structures. The outer ring 531 and the inner ring 532 may be coaxially arranged.

Illustratively, two or more resilient supports 533 are provided at intervals along the circumferential direction of the inner ring 532.

Illustratively, referring to fig. 12, the elastic support 533 may include two arc-shaped segments 533a and two connecting segments 533 b. The two arc segments 533a are connected at one end. A gap is formed between the two arc-shaped segments 533 a. The free end of the arc-shaped segment 533a may be connected with the connection segment 533 b. One of the two connecting segments 533b is connected to the outer ring 531, and the other is connected to the inner ring 532.

Exemplarily, the elastic support 533 may be a coil spring. One end of the coil spring is connected to the outer ring 531, and the other end is connected to the inner ring 532.

In some realizable manners, referring to fig. 9, the transducer unit 40 divides the receiving cavity 21 of the housing 20 into a front cavity 21a and a back cavity 21 b. The sound outlet hole 22 of the housing 20 communicates with the front chamber 21 a. The battery 30 may be disposed in the rear cavity 21b of the housing 20.

In the transduction unit 40, the air conduction transducer 41 and the bone conduction transducer 42 may be integrated to form an integral structure, which is beneficial to reduce the difficulty of assembling the transduction unit 40 and the housing 20, and is also beneficial to improve the structural compactness of the transduction unit 40, reduce the space occupancy rate of the transduction unit 40, and save the installation space in the housing 20.

In some realizable approaches, fig. 13 schematically shows a partial cross-sectional structure of the wearable audio output device 10 of the present application. Referring to fig. 13, the transducer unit 40 includes an air-conduction transducer 41 that partitions the housing cavity 21 of the housing 20 into a front cavity 21a and a rear cavity 21 b. The sound outlet hole 22 of the housing 20 communicates with the front chamber 21 a. The transduction unit 40 includes a bone conduction transducer 42 disposed within the rear cavity 21 b. The air conduction transducer 41 of the transducer unit 40 is spaced apart from the bone conduction transducer 42.

In some examples, the front cavity 21a and the rear cavity 21b of the housing 20 may communicate with each other.

In some realizable approaches, as shown in fig. 9, the wearable audio output device 10 also includes a first noise-reducing microphone 60. The first noise reducing microphone 60 has a sound pickup hole. The first noise reducing microphone 60 is disposed in the rear cavity 21b of the housing 20. The housing 20 also includes a flow guide channel 24. The air guide passage 24 communicates the front chamber 21a of the housing 20 and the sound pickup hole of the first noise reduction microphone 60, so that the first noise reduction microphone 60 can pick up a noise signal in the front chamber 21 a.

The wearable audio output device 10 also includes a noise reduction module (not shown). The first noise reducing microphone 60 is communicatively coupled to the noise reduction module. When noise is present within the housing 20, the first noise reducing microphone 60 may detect the noise and generate a noise signal. The noise signal may be transmitted to a noise reduction module of the wearable audio output device 10. The noise reduction module can output sound wave signals with opposite phases to the noise sound waves to offset the noise, so that the purpose of reducing the noise is achieved.

In some examples, the first noise reduction microphone 60 may detect high frequency or low frequency noise, so that noise of different frequencies may be reduced to improve the sound quality of the wearable audio output device 10.

In some examples, when the valve 51 is in the open state, the gas conduction transducer 41 is in an active state and the bone conduction transducer 42 is in an inactive state. The first noise reduction microphone 60 may be in an operational state. The first noise reduction microphone 60 may detect and collect noise in the front chamber 21a or noise transmitted to the external environment in the front chamber 21a through the sound outlet hole 22.

In some examples, when the valve 51 is in the closed state, the gas conduction transducer 41 may be in the inactive state while the bone conduction transducer 42 is in the active state. At this time, the first noise reduction microphone 60 may be in a non-operating state, and noise of the front chamber 21a is not detected and collected.

In some realizable manners, as shown in fig. 13, the first noise reducing microphone 60 may be disposed within the front cavity 21a of the housing 20, thereby facilitating the release of installation space within the rear cavity 21 b. The sound pickup hole of the first noise reduction microphone 60 communicates with the front chamber 21 a. The first noise reduction microphone 60 may collect a noise signal within the front cavity 21 a.

In some realizable manners, as shown in fig. 13, the housing 20 includes a front case 201 and a rear case 202. The front case 201 and the rear case 202 form a housing chamber 21. The sound outlet hole 22 is provided in the front case 201. The watertight valve assembly 50 is provided to the front case 201. The transducer unit 40 is disposed at the front case 201. At least a portion of front shell 201 may be in contact with the skin of the user when wearable audio output device 10 is worn by the user. The audio signal formed by the bone conduction transducer 42 may be output through the front housing 201.

In some examples, front shell 201 and rear shell 202 are removably connected, facilitating assembly and later maintenance of wearable audio output device 10. Illustratively, the front case 201 and the rear case 202 may be snapped to each other. The end surface of the rear shell 202 facing the front shell 201 is provided with a catch. The inner wall of the front shell 201 is provided with a clamping groove. The snap of the rear shell 202 enters the front shell 201 and is snapped into the snap groove. Illustratively, the front case 201 and the rear case 202 may be connected by bonding.

In some examples, the first noise reduction microphone 60 is connected to the front case 201. The guide passage 24 is provided in the front case 201.

In some realizable manners, fig. 14 schematically shows the structure of the wearable audio output device 10 of the present application. Referring to fig. 13 and 14, the wearable audio output device 10 also includes a second noise reducing microphone 70. The second noise reduction microphone 70 has a sound pickup hole. A second noise reducing microphone 70 is disposed within the housing 20. The housing 20 includes a through hole 25. The sound pickup hole of the second noise reduction microphone 70 is disposed corresponding to the via hole 25, and is communicated with the external environment through the via hole 25. The second noise reduction microphone 70 may collect noise of the external environment.

Second noise reduction microphone 70 is communicatively coupled to a noise reduction module of wearable audio output device 10. The noise reduction module can acquire the noise signals detected by the first noise reduction microphone 60 and the second noise reduction microphone 70, and generate sound wave signals for canceling noise, so as to achieve the purpose of reducing noise, further improve the noise reduction performance and stability of the wearable audio output device 10, reduce noise interference, and improve the user experience.

In some examples, when the valve 51 is in the open state, the gas conduction transducer 41 is in an active state and the bone conduction transducer 42 is in an inactive state. Ambient noise may be transmitted to the second noise reduction microphone 70 and detected by the second noise reduction microphone 70.

In some examples, when the valve 51 is in the closed state, the gas conduction transducer 41 may be in the inactive state while the bone conduction transducer 42 is in the active state. At this time, the second noise reduction microphone 70 may be in a non-operating state, and does not detect and collect noise of the external environment.

In some examples, wearable audio output device 10 also includes a dust cover 200. The dust cover 200 is provided in the via hole 25, thereby reducing the possibility that foreign matter such as external dust enters the via hole 25 to clog the via hole 25.

In some realizable manners, as shown in fig. 13, the housing 20 also includes a pressure relief vent 26. The relief hole 26 of the housing 20 communicates with the rear chamber 21 b. The relief hole 26 communicates the rear chamber 21b with the outside environment. The pressure relief hole 26 allows air to freely enter and exit the rear cavity 21b, so that the pressure in the rear cavity 21b is kept relatively consistent with the atmospheric pressure of the external environment, the possibility of unbalance of the pressure in the rear cavity 21b is reduced, and the wearable audio output device 10 is favorably ensured to have good sound quality and sound effect. In some examples, a pressure relief vent 26 is provided in the front housing 201.

In some realizable forms, wearable audio output device 10 further includes a waterproof, breathable membrane 80. A waterproof, breathable membrane 80 is attached to the outer shell 20. Waterproof vent membrane 80 covers pressure relief vent 26. The waterproof breathable membrane 80 does not allow water to pass through, so that external water is prevented from entering the rear cavity 21b from the pressure relief hole 26. The waterproof breathable membrane 80 can allow gas to pass through, so that the pressure of the rear cavity 21b can be equalized with the atmospheric pressure of the external environment.

In some examples, waterproof breathable film 80 may include two layers of Polypropylene (PP) spunbond nonwoven and Polyethylene (PE) polymeric breathable film. The polyethylene high-molecular breathable film is arranged between the two layers of polypropylene spun-bonded non-woven fabrics.

In some examples, waterproof breathable membrane 80 is disposed within enclosure 20. The waterproof breathable membrane 80 can be arranged on the inner wall of the housing 20 by bonding.

In some examples, the wearable audio output device 10 further includes a dust cover 200. The dust cover 200 is disposed in the pressure release hole 26, thereby reducing the possibility that foreign matters such as external dust enter the pressure release hole 26 to block the pressure release hole 26.

In some examples, the pressure relief vent 26 is provided in the rear housing 202. Waterproof vented membrane 80 can be attached to rear housing 202.

In some realizable forms, as shown in fig. 13 and 14, the wearable audio output device 10 also includes a flexible earpiece 90. A flexible earplug 90 is disposed outside of the housing 20 and is attached to the housing 20. The flexible earplug 90 has a central aperture 91. The central bore 91 of the flexible earplug 90 is in communication with the sound outlet port 22. When the user wears the wearable audio output device 10, the flexible ear plug 90 may contact with the external auditory canal of the user, so that the external sound entering the external auditory canal of the user may be reduced, and the interference of the external sound may be reduced.

In some examples, the material of the flexible earplug 90 may be rubber or silicone.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Reference throughout this specification to apparatus or components, in embodiments or applications, means or components must be constructed and operated in a particular orientation and therefore should not be construed as limiting the present embodiments. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The term "plurality" herein refers to two or more. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and succeeding related objects are in a relationship of "division".

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application.

It should be understood that, in the embodiment of the present application, the sequence numbers of the above-mentioned processes do not imply an order of execution, and the order of execution of the processes should be determined by their functions and inherent logic, and should not limit the implementation process of the embodiment of the present application in any way.

Claims (14)

1. A wearable audio output device, comprising at least:

the shell is provided with an accommodating cavity and a sound outlet hole communicated with the accommodating cavity;

the energy conversion unit is arranged in the accommodating cavity and comprises an air conduction transducer and a bone conduction transducer, an audio signal formed by the air conduction transducer is output through the sound outlet hole, and an audio signal formed by the bone conduction transducer is output through the shell;

and the waterproof valve assembly is arranged on the shell and is used for opening or closing the sound outlet hole.

2. The wearable audio output device of claim 1, wherein the waterproof valve assembly comprises a valve and a driving member, the valve is connected to the driving member, the driving member drives the valve to move along the axial direction of the sound outlet hole, and the driving member drives the valve to move to open or close the sound outlet hole.

3. The wearable audio output device according to claim 2, wherein the valve is disposed outside the sound outlet hole, and an orthographic projection of the sound outlet hole is located within an orthographic projection of the valve along an axial direction of the sound outlet hole; or, the shell further comprises a containing hole, the sound outlet hole is communicated with the containing hole, and at least part of the valve is arranged in the containing hole.

4. The wearable audio output device of claim 3, wherein the water-tight valve assembly further comprises a resilient member connecting the valve and the housing, the valve moving to cause the resilient member to accumulate or release elastic potential energy.

5. The wearable audio output device of claim 4, wherein the resilient member comprises an outer ring, an inner ring, and a resilient support, the inner ring being located within the outer ring, the resilient support connecting the outer ring and the inner ring, the outer ring being connected to the housing, and the inner ring being connected to the valve.

6. The wearable audio output device of any of claims 2 to 5, wherein the driving component comprises a magnetic unit and a conductive coil, the conductive coil is disposed corresponding to the magnetic unit, and the valve is connected to the conductive coil and moves relative to the magnetic unit through the conductive coil to actuate the valve.

7. The wearable audio output device according to claim 2 or 3, wherein the valve comprises a piezoelectric diaphragm, the piezoelectric diaphragm is connected to the housing, the driving component comprises a piezoelectric driving module, the piezoelectric diaphragm is electrically connected to the piezoelectric driving module, and the piezoelectric diaphragm is driven by the piezoelectric driving module to be bent and deformed so as to open or close the sound outlet hole.

8. The wearable audio output device according to any of claims 1 to 7, wherein the transduction unit partitions the accommodation chamber to form a front chamber and a rear chamber, and the sound outlet hole communicates with the front chamber.

9. The wearable audio output device according to any of claims 1 to 7, wherein the air conduction transducer separates the receiving cavity to form a front cavity and a rear cavity, the sound outlet hole communicates with the front cavity, and the bone conduction transducer is disposed in the rear cavity.

10. The wearable audio output device of claim 8 or 9, further comprising a first noise reducing microphone disposed within the rear cavity, the housing comprising a flow guide channel that communicates the front cavity and a sound pick-up hole of the first noise reducing microphone.

11. The wearable audio output device of claim 8 or 9, further comprising a first noise reducing microphone disposed within the front cavity, the sound pick-up hole of the first noise reducing microphone in communication with the front cavity.

12. The wearable audio output device according to any of claims 8 to 11, wherein the housing further comprises a pressure relief hole, the pressure relief hole is communicated with the rear cavity, the wearable audio output device further comprises a waterproof breathable film, the waterproof breathable film is connected to the housing, and the waterproof breathable film covers the pressure relief hole.

13. The wearable audio output device of any of claims 1 to 12, further comprising a second noise reduction microphone disposed within the housing, wherein the housing comprises a via hole, and the sound pickup hole of the second noise reduction microphone is disposed corresponding to the via hole and is in communication with an external environment through the via hole.

14. The wearable audio output device according to any of claims 1 to 13, wherein the housing comprises a front shell and a rear shell, the front shell and the rear shell forming the receiving cavity, the sound outlet hole being provided in the front shell, and the transducing unit being provided in the front shell.

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