CN219227783U

CN219227783U - Bone conduction earphone

Info

Publication number: CN219227783U
Application number: CN202223398373.8U
Authority: CN
Inventors: 栗永新
Original assignee: Shenzhen Sounder Digital Technology Co ltd
Current assignee: Shenzhen Sounder Digital Technology Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-06-20
Anticipated expiration: 2032-12-15

Abstract

The utility model provides a bone conduction earphone, its includes acoustic container and vibration sound generator, the acoustic container include near-end, distal end, and connect the curb plate between near-end and the distal end, the distal end is relative with the near-end, the near-end includes first face and second face, the second face is opposite with first face, wear the state down first face and human contact, vibration sound generator fixed connection in the second face, vibration sound generator with the distal end of acoustic container and connect the curb plate and all contactless. The bone conduction earphone shortens the transmission path of sound signals, reduces attenuation in the transmission process of the sound signals, can emit louder sound with lower power consumption, and can basically conduct sound signals generated by the vibration sounder without damage.

Description

Bone conduction earphone

Technical Field

The utility model relates to the field of earphones, in particular to a bone conduction earphone.

Background

The bone conduction earphone includes acoustic container and vibration sound generator, and its vibration sound generator is fixed at the tip that keeps away from the human body of acoustic container (this tip is called the distal end in this application) or the curb plate of acoustic container, and during operation, vibration sound generator converts audio signal into sound signal, and sound signal passes through the curb plate of acoustic container and transmits to the tip that contacts with the human body (this tip is called the proximal end in this application), and then passes through human skin, subcutaneous tissue and skeleton and transmit to human auditory nerve to make the human hearing sound. Because the bone conduction earphone does not need to be placed in an auditory canal and does not stimulate eardrum, the wearing comfort of the bone conduction earphone is better than that of the traditional earphone. Meanwhile, the resonance of the acoustic container can enable the sound signal to generate larger attenuation in the transmission process, and the sound transmission rate is lower.

Disclosure of Invention

It is an object of the present utility model to provide a bone conduction headset that at least to some extent solves the above-mentioned drawbacks of the related art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a bone conduction headset, comprising:

the acoustic container comprises a proximal end, a distal end and a connecting side plate between the proximal end and the distal end, wherein the distal end is opposite to the proximal end, the proximal end comprises a first surface and a second surface, the second surface is opposite to the first surface, and the first surface is in contact with a human body in a wearing state; and

the vibration sounder is fixedly connected to the second face, and the vibration sounder is in non-contact with the far end of the acoustic container and the connecting side plate.

In this bone conduction earphone, vibration sound generator fixed connection in the second face of acoustic container near-end for the sound signal that vibration sound generator produced directly acts on the near-end of acoustic container, acts on the human body through the near-end of acoustic container, has shortened the transmission path of sound signal, has reduced the decay in the sound signal transmission process, can send out louder sound with lower consumption. And the vibration sounder is combined with the far end of the acoustic container and the connecting side plate in a non-contact way, so that the sound signal generated by the vibration sounder can be conducted basically without damage. In addition, the vibration sound generator is fixed on the second surface of the near end of the acoustic container, so that the vibration sound generator and the near end of the acoustic container are in same-direction resonance, and the vibration sound generator is not easy to fall off.

In the bone conduction earphone, the vibration sound generator is in a suspended state in the acoustic container.

In one aspect, the proximal end of the acoustic container includes a layer of elastomeric material and does not include a layer of rigid material, and the connecting side panel of the acoustic container includes a layer of rigid material. By the above structure of the acoustic container, when the vibration sounder vibrates, resonance of the connecting side plate and the far end of the acoustic container is further reduced, and leakage of external sound and wearing discomfort caused by resonance can be reduced.

In another aspect, the proximal end of the acoustic container includes a layer of elastomeric material and does not include a layer of rigid material, and the distal end of the acoustic container includes a layer of rigid material. The above construction of the acoustic container further reduces resonance at the distal end of the acoustic container when the vibration sound generator vibrates, and can reduce leakage of external sound and wearing discomfort caused by resonance to some extent.

In yet another aspect, the proximal end of the acoustic container includes a layer of elastomeric material and does not include a layer of rigid material, and the distal end and the connecting side plate of the acoustic container include a layer of rigid material. By the above structure of the acoustic container, when the vibration sounder vibrates, resonance of the connecting side plate and the far end of the acoustic container is further reduced, and leakage of external sound and wearing discomfort caused by resonance can be reduced.

Preferably, the vibration frequency range of the elastomeric material layer includes 20Hz-20kHz. The scheme enables the near end of the acoustic container to resonate with the vibration sounder in full frequency, and sound signals generated by the vibration sounder can be transmitted to human skin in full frequency.

In one embodiment, the vibration sound generator comprises a vibration component and a transduction component, the second face comprises an adhesive layer, and the vibration component is bonded with the adhesive layer.

In another embodiment, the vibration sounder includes a vibration component and a transduction component, the second face includes a receiving groove, and all or part of the vibration component is embedded in the receiving groove.

In still another embodiment, the vibration generator includes a vibration assembly and a transduction assembly, the second surface includes a protrusion, an end of the protrusion has a lateral extension, a clamping groove is enclosed by the lateral extension, the protrusion and the second surface, and the vibration assembly is in clamping fit with the clamping groove so that the vibration generator is fixedly connected to the second surface.

In some embodiments, the connecting side plate and the distal end of the acoustic container are integrally formed, the inner edge of the connecting side plate is provided with a step portion corresponding to the proximal end, the proximal end comprises a flat plate, the flat plate is fixed on the step portion, and the flat plate protrudes from the end portion of the connecting side plate.

Compared with the prior art, the utility model has at least the following beneficial effects:

Drawings

Fig. 1 is a schematic diagram of the overall structure of a bone conduction headset;

FIG. 2 is a schematic diagram of the structure of a single earphone;

fig. 3 is a schematic view of the structure of the proximal plate body.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

The terms first, second, and the like in this application do not denote any order or importance, unless otherwise specified.

Referring to fig. 1, the bone conduction earphone integrally includes two earphones 100, the two earphones 100 are connected through a connecting piece 200, the connecting piece 200 is used for keeping the earphone 100 on the head of a person when being worn, a circuit device 201 is arranged on the connecting piece 200, the circuit device 201 is used for receiving an audio signal from a sound source, and transmitting the audio signal to the earphone 110 after processing, wherein the connection between the circuit device 201 and the sound source can be in a wired mode or a wireless mode, such as a bluetooth mode, and the circuit device 201 can also include circuit elements such as a battery and a control key, and the application is not limited.

Referring to fig. 2, the earphone 100 includes an acoustic container 110 and a vibration sound generator 120, the acoustic container 110 includes a proximal end 111, a distal end 113, and a connecting side plate 112 between the proximal end 111 and the distal end 113, the distal end 113 is opposite to the proximal end 111, the proximal end 111 includes a first surface 114 and a second surface 115, the second surface 115 is opposite to the first surface 114, and the first surface 114 contacts the human body in a wearing state. The vibration sound generator 120 is fixedly connected to the second surface 115, and the vibration sound generator 120 is not contacted with the distal end 113 and the connecting side plate 112 of the acoustic container 110, so that the vibration sound generator 120 is in a suspended state in the acoustic container 110.

In the bone conduction earphone, the vibration sound generator 120 is fixedly connected to the second surface 115 of the proximal end 111 of the acoustic container 110, so that the sound signal generated by the vibration sound generator 120 directly acts on the proximal end 111 of the acoustic container 110, and acts on a human body through the proximal end 111 of the acoustic container 110, so that the transmission path of the sound signal is shortened, the attenuation in the transmission process of the sound signal is reduced, and a larger sound can be emitted with lower power consumption. The combination of the vibration horn 120 and the distal end 113 of the acoustic container 110 and the connecting side plate 112 are non-contact such that the sound signal generated by the vibration horn 120 is substantially non-destructive conducted. In addition, the vibration generator 120 is fixed on the second surface 115 of the proximal end 111 of the acoustic container, so that the vibration generator 120 and the proximal end 111 of the acoustic container are in resonance in the same direction, and the vibration generator 120 is not easy to fall off.

In one embodiment, the proximal end 111 of the acoustic container 110 comprises a layer of elastomeric material and does not comprise a layer of rigid material, and the connecting side plate 112 of the acoustic container 110 comprises a layer of rigid material. The above construction of the acoustic container 110 further reduces resonance of the connection side plate 112 and the distal end 113 of the acoustic container 110 when the vibration sound generator 120 vibrates, and can reduce leakage of external sound and wearing discomfort caused by resonance.

Specifically, the material of the elastomer material layer may be a thermoplastic elastomer material (Thermoplastic Elastomer, TPE). The material of the elastomer material layer can also be thermoplastic polyurethane elastomer rubber (Thermoplastic polyurethanes, TPU). The elastomer material layer can also be made of silica gel, plastic or other materials which have elasticity and can play a supporting role.

Specifically, the material of the rigid material layer may be a rigid material such as a polycarbonate material (PCs), a polyoxymethylene material (POM), a polymethacrylate material (Polymethyl Methacrylate, PMMA), a metal material, or the like.

In another embodiment, the proximal end 111 of the acoustic container 110 comprises a layer of elastomeric material and does not comprise a layer of rigid material, and the distal end 113 of the acoustic container 110 comprises a layer of rigid material. The above-described configuration of the acoustic container 110 allows the resonance of the distal end 113 of the acoustic container 110 to be further reduced when the vibration sound generator 120 vibrates, and leakage of external sounds and wearing discomfort due to the resonance can be reduced to some extent.

In yet another embodiment, the proximal end 111 of the acoustic container 110 includes a layer of elastomeric material and does not include a layer of rigid material, and the distal end 113 and the connecting side plate 112 of the acoustic container 110 each include a layer of rigid material. The above construction of the acoustic container 110 further reduces resonance of the connection side plate 112 and the distal end 113 of the acoustic container 110 when the vibration sound generator 120 vibrates, and can reduce leakage of external sound and wearing discomfort caused by resonance.

Alternatively, the distal end 113 and the connecting side plate 112 of the acoustic container 110 may be integrally formed, and such an integrally formed structure is particularly suitable for a solution in which the distal end 113 and the connecting side plate 112 each comprise a rigid material layer. The distal end 113 and the connecting side plate 112 of the acoustic container 110 may be formed integrally, and the integrated structure is particularly suitable for a case where the distal end 113 includes a rigid material layer and the connecting side plate 112 includes an elastomer material layer and does not include a rigid material layer, or a case where the distal end 113 includes an elastomer material layer and does not include a rigid material layer and the connecting side plate 112 includes a rigid material layer.

Further, the vibration frequency range of the elastomeric material layer may be selected to include 20Hz-20kHz. The frequency range includes all frequency points of the sound signal, so that the near end 111 of the acoustic container 110 and the vibration generator 120 can perform full-frequency resonance, and the sound signal generated by the vibration generator 120 can be transmitted to the skin of the human body in full frequency.

Alternatively, the vibration horn 120 may be fixedly coupled to the second face 115 by the following embodiments. Wherein the vibration generator 120 includes a vibration component 121 and a transduction component 122.

In one embodiment, the second face 115 includes an adhesive layer, and the vibration assembly 121 is bonded to the adhesive layer, so that the vibration horn 120 is fixedly connected to the second face 115.

In another embodiment, the second surface 115 includes a concave receiving groove, and all or part of the vibration assembly 121 is embedded in the receiving groove, so that the vibration sound generator 120 is fixedly connected to the second surface 115 by using the embedding force. Preferably, the adhesive layer is coated on the accommodating groove, and the vibration assembly 121 is bonded to the adhesive layer, so that the bonding force and the adhesive force work together to fixedly connect the vibration horn 120 to the second surface 115.

In yet another embodiment, referring to fig. 3, the second surface 115 of the proximal plate body includes a protruding portion 116, an end portion of the protruding portion 116 has a lateral extension 117, the protruding portion 116 and the second surface 115 enclose a clamping groove 118, and the vibration assembly 121 is in clamping fit with the clamping groove 118, so that the vibration sound generator 121 is fixedly connected to the second surface 115. The clamping grooves 118 are preferably formed corresponding to the peripheral edges of the vibration components 121.

Referring to fig. 2, as an embodiment, a connection side plate 112 and a distal end 113 of the acoustic container 110 are integrally formed, an inner edge of the connection side plate 112 is provided with a stepped portion corresponding to the proximal end 111, the proximal end 111 includes a flat plate fixed to the stepped portion, and the flat plate protrudes from an end of the connection side plate 112. The flat plate may be fixed to the stepped portion specifically by an adhesive process. In this embodiment, the connecting side plate 112 and the distal end 113 are integrally formed, so that the assembly of the acoustic container 110 is simple, and the step portion can form a positioning action on the proximal end 111, so that the assembly is easier.

The foregoing detailed description of the utility model has been provided by way of example only to assist those skilled in the art in understanding the utility model and is not to be construed as limiting the scope of the utility model. Various modifications, equivalent changes, etc. which are made by those skilled in the art to the above-described embodiments under the inventive concept should be included in the scope of the present utility model.

Claims

1. A bone conduction headset, comprising:

2. The bone conduction headset of claim 1, wherein the vibration sound generator is in a suspended state within the acoustic container.

3. The bone conduction headset of claim 1, wherein the proximal end of the acoustic container includes a layer of elastomeric material and does not include a layer of rigid material, and the connecting side plate of the acoustic container includes a layer of rigid material.

4. The bone conduction headset of claim 1, wherein the proximal end of the acoustic container comprises a layer of elastomeric material and does not comprise a layer of rigid material, and the distal end of the acoustic container comprises a layer of rigid material.

5. The bone conduction headset of claim 1, wherein the proximal end of the acoustic container includes a layer of elastomeric material and does not include a layer of rigid material, and wherein the distal end and the connecting side plate of the acoustic container each include a layer of rigid material.

6. The bone conduction headset of any one of claims 3-5, wherein the vibration frequency range of the elastomeric material layer includes 20Hz-20kHz.

7. The bone conduction headset of claim 1, wherein the vibration sound generator includes a vibration assembly and a transduction assembly, the second face includes an adhesive layer, and the vibration assembly is bonded to the adhesive layer.

8. The bone conduction headset of claim 1, wherein the vibration sound generator comprises a vibration assembly and a transduction assembly, the second face comprises a receiving groove, and all or part of the vibration assembly is embedded in the receiving groove.

9. The bone conduction headset of claim 1, wherein the vibration sound generator comprises a vibration component and a transduction component, the second surface comprises a protrusion, the end of the protrusion is provided with a lateral extension, the protrusion and the second surface are surrounded to form a clamping groove, and the vibration component is matched with the clamping groove in a clamping way so that the vibration sound generator is fixedly connected to the second surface.

10. The bone conduction headset of claim 1, wherein the connecting side plate and the distal end of the acoustic container are integrally formed, an inner edge of the connecting side plate is provided with a stepped portion corresponding to the proximal end, the proximal end includes a flat plate fixed to the stepped portion, and the flat plate protrudes from an end of the connecting side plate.