CN220234904U

CN220234904U - Waterproof type modularization goes into ear bone conduction earphone

Info

Publication number: CN220234904U
Application number: CN202321542326.8U
Authority: CN
Inventors: 栗永新
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-12-22
Anticipated expiration: 2033-06-16

Abstract

The utility model discloses a waterproof modularized ear bone conduction earphone, which comprises an earphone shell and a bone conduction machine core, wherein the earphone shell comprises a rear shell and a front shell arranged on the rear shell, the front shell is provided with a front cavity, the rear shell is provided with a rear cavity, the front shell is made of hard materials, the bone conduction machine core is arranged at the position of the front cavity, and the bone conduction machine core comprises a transduction component and a vibration transmission component, and is used for generating vibration under the excitation of an electric signal; the vibration transmission component is used for directly or indirectly transmitting the vibration generated by the transduction component to the front shell. When the sound wave needs to be transmitted, the front shell of the earphone shell stretches into the auricle, the wall surface of the front shell is opposite to the auditory canal, when the vibration transmission assembly vibrates, the vibration directly acts on the front shell and is transmitted to the inner wall of the auricle, so that the loss of the vibration is reduced, the loss of sound signals is effectively reduced, and the sound effect of the in-ear earphone is effectively improved.

Description

Waterproof type modularization goes into ear bone conduction earphone

Technical Field

The utility model relates to the field of in-ear headphones, in particular to a waterproof modularized in-ear bone conduction headphone.

Background

The sound production part of the traditional in-ear earphone adopts a moving coil air transmission sound mode, and in the use process, sound waves and auditory meatus can generate negative pressure, so that eardrum pressure is caused, eardrum can be damaged after long-time use, and wearing comfort is affected.

Meanwhile, the traditional ear hanging type earphone cannot achieve better waterproof and dustproof effects due to the sound transmission holes and the air inlet holes, sweat can react with the diaphragms of the hole sites in sports wear, so that the output of sound channels is affected, and meanwhile, the service life of the earphone is shortened.

At the same time, how to realize the assembly and sound output of the in-ear bone conduction earphone is a key of the design.

Disclosure of Invention

The utility model mainly aims to provide a waterproof modularized in-ear bone conduction earphone, which aims to enable the in-ear bone conduction earphone to have better wearing property and comfort and better output tone quality.

In order to achieve the above object, the present utility model provides a waterproof modular in-ear bone conduction earphone, comprising,

the earphone shell comprises a rear shell and a front shell arranged on the rear shell, wherein the front shell is provided with a front cavity, the rear shell is provided with a rear cavity, and the front shell is made of hard materials;

the bone conduction machine core is arranged at the position of the front cavity and comprises a transduction component and a vibration transmission component,

the energy conversion component is used for generating vibration under the excitation of an electric signal;

the vibration transmission component is used for directly or indirectly transmitting the vibration generated by the transduction component to the front shell.

According to the technical scheme, when sound waves are required to be transmitted, the front shell of the earphone shell stretches into the auricle, the wall surface of the front shell is opposite to the auditory canal, and when the vibration transmission assembly vibrates, the vibration directly acts on the front shell and is transmitted to the inner wall of the auricle, so that the loss of the vibration is reduced, the loss of sound signals is effectively reduced, and the sound effect of the in-ear earphone is effectively improved;

the beneficial effect of this design is wherein: 1. the sound signal does not need air propagation, so that the negative pressure of auricles is avoided, and wearing comfort is improved; 2. the vibration transmission assembly is completely attached to the inner wall surface of the front shell of the earphone head, so that the vibration transmission assembly and the front cavity quickly and sensitively generate resonance, the sound can be clearer, and the sound confusion caused by vibration lag can be avoided; 3. compared with the traditional ear-attached bone conduction earphone, the circuit design does not need to adopt a high-power circuit to drive the vibration transmission assembly, so that the loss is effectively reduced, and the fidelity of sound wave signals is ensured; 4. the shell can be a relatively closed cavity, so that a sound transmission hole and an air inlet hole are not required to be arranged, the waterproof and dustproof performances of the earphone are effectively ensured, and the service life and the stability of the earphone are further improved; meanwhile, the damage to the eardrum caused by long-time use of the earphone can be effectively solved.

Drawings

FIG. 1 is a schematic diagram of the present utility model;

FIG. 2 is a schematic view of the structure of the enclosure and the front case;

fig. 3 is a schematic view of the integrated molding of the enclosure and the front case.

In the figure, 1 is an earphone shell, 11 is a front shell, 111 is a bottom wall, 112 is an annular peripheral wall, 12 is a rear shell, 2 is a bone conduction machine core, 21 is a transduction component, 22 is a vibration transmission component, 23 is a vibration cover, 31 is a positioning cavity, and 32 is a surrounding part.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiment of the present utility model, directional indications (such as up, down, left, right, front, rear, top, bottom, inner, outer, vertical, lateral, longitudinal, counterclockwise, clockwise, circumferential, radial, axial … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first" or "second" etc. in the embodiments of the present utility model, the description of "first" or "second" etc. is only for descriptive purposes, and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

As shown in fig. 1 to 3, a waterproof type modular in-ear bone conduction earphone, comprising,

a earphone housing 1, wherein the earphone housing 1 comprises a rear housing 12 and a front housing 11 mounted on the rear housing 12, the front housing 11 is provided with a front cavity, the rear housing 12 is provided with a rear cavity, and the front housing 11 is made of hard materials;

a bone conduction movement 2, the bone conduction movement 2 being mounted in the anterior chamber, the bone conduction movement 2 comprising a transducer assembly 21 and a vibration transmission assembly 22,

the transducer assembly 21 is used for generating vibration under the excitation of an electric signal;

the vibration transmission assembly 22 is used for directly or indirectly transmitting the vibration generated by the transducer assembly 21 to the front case 11.

In the design of the utility model, when the acoustic wave needs to be transmitted, the front shell 11 of the earphone shell 1 stretches into the auricle, and the wall surface of the front shell 11 is opposite to the auditory canal at the moment, when the vibration transmission component 22 vibrates, the vibration directly acts on the front shell 11 and is transmitted to the inner wall of the auricle, so that the loss of the vibration is reduced, the loss of the sound signal is effectively reduced, and the sound effect of the in-ear earphone is effectively improved;

the beneficial effect of this design is wherein: 1. the sound signal does not need air propagation, so that the negative pressure of auricles is avoided, and wearing comfort is improved; 2. the vibration transmission assembly 22 is completely attached to the inner wall surface of the front shell 11 of the earphone head, so that the vibration transmission assembly 22 and the front cavity quickly and sensitively generate resonance, the sound can be clearer, and the sound confusion caused by vibration lag can be avoided; 3. compared with the traditional ear-attached bone conduction earphone, the circuit design does not need to adopt a high-power circuit to drive the vibration transmission component 22, so that the loss is effectively reduced, and the fidelity of sound wave signals is ensured; 4. the shell can be a relatively closed cavity, so that a sound transmission hole and an air inlet hole are not required to be arranged, the waterproof and dustproof performances of the earphone are effectively ensured, and the service life and the stability of the earphone are further improved; meanwhile, the damage to the eardrum caused by long-time use of the earphone can be effectively solved.

In the first embodiment, the front wall surface of the vibration transmission component is directly attached to the rear wall of the front shell 11, for example, an embodiment may be implemented in which an elastic pad is directly attached to the vibration component, so as to implement vibration of the closed cavity.

In the second embodiment, the vibration transmission assembly 22 is provided with a vibration cover 23, and the vibration cover 23 is directly attached to the rear wall of the front case 11.

In the embodiment of the present utility model, the elastic modulus of the vibration cover 23 is greater than the elastic modulus of the front shell 11, that is, the hardness of the front shell 11 is greater than the hardness of the vibration cover 23, so that the deformation of the front shell 11 can be reduced, and meanwhile, the vibration cover 23 can provide a more crisp deformation through the difference of the elastic moduli, thereby improving the better middle and high tones and the tone quality.

Further, the transducer assembly 21 and the vibration transmission assembly 22 are installed in the positioning cavity 31, the cavity wall of the positioning cavity 31 is installed at the rear wall position of the front shell 11, that is, the bone conduction machine core 2 is taken as an independent unit, and the unit is installed on the front shell 11, so that the relative production cost can be reduced.

Furthermore, the rear wall of the front housing 11 extends to form a surrounding portion 32, and the surrounding portion 32 and the front housing 11 are integrally formed, that is, the transducer assembly 21 and the vibration transmission assembly 22 are mounted on the front housing 11, so that resonance generated by the split positioning cavity 31 can be reduced, and sound quality is further improved.

In the embodiment of the present utility model, the front shell 11 includes a bottom wall 111 and an annular peripheral wall 112, where the annular peripheral wall 112 contacts with the inner wall of the ear canal of the user, and with this structure, a larger contact area can be achieved, so that the vibration generated by the bone conduction earphone is transmitted more clearly, the loss of sound waves is reduced, the sound quality of the earphone is improved, and meanwhile, this structure can improve the structure of the existing bone conduction earphone that requires a high-power circuit board, and further reduce the production cost of the bone conduction earphone.

Specifically, the bottom wall 111 and the annular peripheral wall 112 form an arc transition therebetween, thereby improving a more comfortable wearing feeling and reducing discomfort caused by long-time wearing.

In the embodiment of the present utility model, a gap is provided between the vibration cover 23 and the inner wall of the front case 11, and the gap is filled and bonded with glue, so as to further improve the transmission of vibration.

In the embodiment of the utility model, the front shell 11 is made of hard PC, ABS or ABS+PC plastic materials, so that the vibration amplitude of the front shell 11 is reduced, but the resonance reaction with the vibration transmission component 22 is more sensitive, and the medium-high frequency is effectively transmitted.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather, the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A waterproof modularized in-ear bone conduction earphone is characterized by comprising,

2. The waterproof modular in-ear bone conduction headset of claim 1, wherein: the front wall surface of the vibration transmission assembly is directly attached to the rear wall of the front shell.

3. The waterproof modular in-ear bone conduction headset of claim 1, wherein: the vibration transmission assembly is provided with a vibration cover, and the vibration cover is directly attached to the rear wall of the front shell.

4. The waterproof modular in-ear bone conduction headset of claim 3, wherein: the elastic modulus of the vibration cover is larger than that of the front shell.

5. The waterproof modular in-ear bone conduction headset of claim 1, wherein: the transduction component and the vibration transmission component are arranged in the positioning cavity, and the cavity wall of the positioning cavity is arranged at the position of the rear wall of the front shell.

6. The waterproof modular in-ear bone conduction headset of claim 1, wherein: the back wall of the front shell extends to form a surrounding part, and the surrounding part and the front shell are integrally formed.

7. The waterproof modular in-ear bone conduction headset of claim 1, wherein: the front shell includes a bottom wall and an annular peripheral wall that contacts the inner wall of the ear canal of the user.

8. The waterproof modular in-ear bone conduction headset of claim 7, wherein: the bottom wall and the annular peripheral wall form arc transition.

9. The waterproof modular in-ear bone conduction headset of claim 3, wherein: a gap is arranged between the vibration cover and the inner wall of the front shell, and the gap is filled and bonded by glue.

10. The waterproof modular in-ear bone conduction headset of claim 1, wherein: the front shell is made of hard PC, ABS or ABS+PC plastic materials.