CN217159973U

CN217159973U - Front cavity sound guide tube for customized wireless earphone

Info

Publication number: CN217159973U
Application number: CN202220472645.5U
Authority: CN
Inventors: 尹生
Original assignee: Listening Wisdom Nanjing Technology Co Ltd
Current assignee: Listening Wisdom Nanjing Technology Co Ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-08-09
Anticipated expiration: 2032-03-04

Abstract

Embodiments of the present disclosure provide a customized wireless headset, comprising: a custom housing that fits the user's ear; and the audio assembly comprises a microphone, a loudspeaker and a sheath, the microphone and the loudspeaker are arranged in the sheath, an opening of the sheath is connected with an opening of the customized shell through a sound guide pipe, at least one of the size and the shape of the sound guide pipe is matched with the customized shell, and the volume of the sound guide pipe is 30-35mm ³ . Thus, the consistency of the sound collecting effect and the sound collecting effect of the microphone of the customized wireless earphone can be improved, therebyThe noise reduction effect of the customized wireless earphone and the consistency of the noise reduction effect are improved, and the adaptability and the comfort of the customized wireless earphone to a user are obviously improved.

Description

Front cavity sound guide tube for customized wireless earphone

Technical Field

Embodiments of the present disclosure generally relate to custom wireless headsets, and more particularly, to a front cavity sound guide tube for a custom wireless headset.

Background

In recent years, with the increasingly wide application scenes of mobile devices such as smart phones and the like and the increasing use of audio and video services by people, the performance requirements of users on earphones are higher and higher. In particular, noise reduction is increasingly preferred by consumers of various types. For example, business people, metro groups, office groups, etc. desire to reduce noise in the cabin, office, etc. scene for better use of audiovisual services.

Currently, various schemes for optimizing noise reduction functions have been proposed for conventional wireless headsets. However, most of the conventional wireless headsets are standard-sized headsets, and the problem of uncomfortable wearing of the user's ears due to long-time wearing is caused, thereby limiting wearing time and application scenes.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present disclosure provide a customized wireless headset, comprising: a custom shell that fits the user's ear; and the audio assembly comprises a microphone, a loudspeaker and a sheath, the microphone and the loudspeaker are arranged in the sheath, an opening of the sheath is connected with an opening of the customized shell through a sound guide pipe, at least one of the size and the shape of the sound guide pipe is matched with the customized shell, and the volume of the sound guide pipe is 30-35mm ³ 。

In some embodiments, the volume is 32-33mm ³ 。

In some embodiments, the dimensions of the sound guide tube are characterized by the length of the axis of the sound guide tube and the average cross-sectional area of a plurality of cross-sections of the sound guide tube along the axis, and the shape of the sound guide tube is characterized by the shape of the plurality of cross-sections and the degree of curvature of the axis.

In some embodiments, the length is 3.4-29.1mm and the average cross-sectional area is 1.1-9.7mm ² 。

In some embodiments, the length is 3.9-17mm and the average cross-sectional area is 1.9-7.3mm ² 。

In some embodiments, the length has a correspondence with the average cross-sectional area, and the correspondence includes at least one of:

the flatThe average cross-sectional area is 4-4.3mm ² And the length is 7.2-8.6 mm;

the average cross-sectional area is 4.8-5.1mm ² And the length is 6-7.4 mm;

the average cross-sectional area is 3.3-3.6mm ² And the length is 8.8-10.2 mm;

the average cross-sectional area is 2.5-2.6mm ² And the length is 12.2-13.6 mm;

the average cross-sectional area is 6.9-7.3mm ² And the length is 3.9-5.3 mm; and

the average cross-sectional area is 1.9-2.1mm ² And the length is 15.6-17 mm.

In some embodiments, the length and the average cross-sectional area are determined based on a location of an opening of the capsule determined based on at least one of a shape and a size of the custom housing.

In some embodiments, at least two cross-sections of the plurality of cross-sections differ from each other in at least one of:

shape, and

cross sectional area.

In some embodiments, the plurality of cross-sections are identical to one another.

In some embodiments, the sound guide tube is a hollow conduit formed in the custom shell.

In some embodiments, the sound guide tube is a hollow conduit formed by 3D printing the custom shell.

In some embodiments, the sound guide tube is formed of a tube independent of the custom shell, the tube extending from the opening of the capsule and attached inside the opening of the custom shell.

In some embodiments, the tube is attached to the open interior side of the custom shell via an adhesive.

In some embodiments, a filler is disposed in the sheath, the filler divides the customized housing into a front cavity and a rear cavity which are not communicated with each other, the front cavity is a cavity formed by the sound guide tube and one side of the sheath communicated with the sound guide tube, and the rear cavity is a cavity of the customized housing except the front cavity and the filler.

In some embodiments, the filler includes at least the microphone, the speaker, and a fixture for securing the microphone and the speaker in the enclosure.

In some embodiments, the fixture is a gel that is impregnated into the jacket.

In some embodiments, the volume of the anterior chamber is 0.1-0.2cm ² 。

In some embodiments, a dust guard including a sound guide hole is provided at the opening of the custom shell.

In some embodiments, the microphone is for collecting sound entering the user's ear as noise for noise reduction processing, at least a portion of the noise being sound emitted by the speaker.

Embodiments of the present disclosure enable a sound guide tube to be matched with and properly housed in a custom shell, and to have a desired volume, by designing the shape and size of the front cavity sound guide tube according to the custom shell. In this way, the pickup effect of the microphone of the customized wireless earphone and the consistency of the pickup effect can be improved, so that the noise reduction effect of the customized wireless earphone and the consistency of the noise reduction effect are improved, and the adaptability and the comfort of the customized wireless earphone to a user are obviously improved.

The summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The summary is not intended to identify key features or essential features of the disclosure, nor is it intended to limit the scope of the disclosure.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a perspective view of an example customized wireless headset according to an embodiment of the present disclosure.

Fig. 2 is an exploded view of an example of a capsule, microphone, speaker, and circuitry of a customized wireless headset according to an embodiment of the present disclosure.

Fig. 3 is a perspective view of another example customized wireless headset according to an embodiment of the present disclosure.

Fig. 4 is an exploded view of an example of a sound guide tube and a jacket, microphone, speaker and circuitry of a customized wireless headset according to an embodiment of the present disclosure.

Fig. 5 is a schematic view of an example of a sound guide tube according to an embodiment of the present disclosure.

Fig. 6 is a schematic view of another example of a sound guide tube according to an embodiment of the present disclosure.

Fig. 7 is a perspective view of an example customized wireless headset provided with a dust guard according to an embodiment of the present disclosure.

FIG. 8 is a cross-sectional view of a dust guard positioned at an opening of a custom shell according to an embodiment of the present disclosure.

Fig. 9 is a schematic view of an example dust guard, according to an embodiment of the present disclosure.

Like or corresponding reference characters designate like or corresponding parts throughout the several views.

Detailed Description

Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The term "include" and variations thereof as used herein is meant to be inclusive in an open-ended manner, i.e., "including but not limited to". Unless specifically stated otherwise, the term "or" means "and/or". The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like may refer to different or the same object. Other explicit and implicit definitions are also possible below.

As described above, various schemes for optimizing the noise reduction function have been proposed for the conventional wireless headset. For example, conventional wireless headsets typically employ dual-microphone noise reduction or triple-microphone noise reduction. The double-wheat noise reduction has the problem of poor noise reduction effect. And the sound pick-up effect of the three-microphone noise reduction feedback microphone is poor, so that the noise reduction effect is still poor. No matter what noise reduction scheme is adopted, most of the traditional wireless earphones are standard-size earphones, adopt a standardized manufacturing mode and have standardized shells, and accordingly, the traditional wireless earphones can adopt a unified standardized design to optimize noise reduction of the traditional wireless earphones.

However, the structure of the conventional wireless headset itself has a drawback in terms of user's adaptability and comfort. In particular, most of the conventional wireless headsets are standard-sized headsets, and the problem of uncomfortable wearing of the user's ears due to long-time wearing is caused, thereby limiting wearing time and application scenes. A custom wireless headset with a custom housing may address these deficiencies of conventional wireless headsets.

Different from the standard shell of the traditional wireless earphone, the shell of the customized wireless earphone is customized according to the shape of the ear of the user, so that the customized wireless earphone can be conveniently plugged into the ear of the user, and comfortable wearing is realized. However, due to individual differences in the user's ears, the size and shape of the custom shell varies greatly, and therefore, noise reduction optimization for the custom wireless headset cannot be performed using a uniform standardized design.

To address, at least in part, one or more of the above problems, and other potential problems, example embodiments of the present disclosure provide a custom wireless headset that includes a custom housing that fits the ear of a user and an audio component. The audio assembly includes a microphone, a speaker, and a jacket. The microphone and speaker are disposed in the enclosure. The opening of the sheath is connected with the opening of the customized shell through the sound guide pipe. At least one of size and shape of sound guide tube and custom shellThe volume of the sound guide tube is 30-35mm ³ 。

In this way, embodiments of the present disclosure enable the sound guide tube to be matched to and properly housed in a custom shell, and to have a desired volume, by designing the shape and size of the front cavity sound guide tube according to the custom shell. Therefore, the pickup effect and the consistency of the pickup effect of the microphone of the customized wireless earphone can be improved, the noise reduction effect and the consistency of the noise reduction effect of the customized wireless earphone are improved, and the adaptability and the comfort of the customized wireless earphone to a user are obviously improved.

Fig. 1 is a perspective view of an example customized wireless headset 100 according to an embodiment of the present disclosure. It should be understood that the shape and configuration of the customized wireless headset 100 as shown in fig. 1 is for exemplary purposes only and does not imply any limitation as to the scope of the present disclosure. Embodiments of the present disclosure may be embodied in different shapes and/or structures.

The customized Wireless headset 100 may be a true Wireless bluetooth headset, also known as a tws (true Wireless stereo) headset, having a customized housing 110. Examples of the customized wireless headset 100 are not so limited and may be any suitable headset with a customized housing and wireless connection functionality. The custom shell 110 can fit the user's ear. It will be appreciated that the ear canal may vary in length, thickness and shape from user to user. Furthermore, the cavum conchae spaces of different users may also be different. The custom shell 110 can be adapted to fit various factors related to the user's ear so that the user can wear comfortably.

In addition, the customized wireless headset 100 also includes an audio component. The audio components include a microphone, speaker, and jacket 120. A microphone and speaker are disposed in the enclosure 120. In some embodiments, a microphone may be used to collect sound entering the user's ear as noise for noise reduction processing. At least a portion of the noise is sound emitted by the speaker. For example, in hybrid active noise reduction techniques, two or more microphones are typically used, with one microphone feeding forward and the other microphone feeding back. The feedforward microphone is used to listen to ambient noise, while the back-feed microphone monitors and cancels the residual noise in the earphone based on the feedforward microphone. The feedforward and the feedback cooperate with each other to perform noise cancellation, so that the headphone can achieve a deeper noise reduction effect. In this case, the microphone according to the embodiment of the present disclosure may be referred to as a "feedback microphone".

In addition, in some embodiments, an electrical circuit 150 is disposed in the jacket 120. The circuit 150 can connect the microphone and speaker to the motherboard of the customized wireless headset 100. The main board is used to load and connect the main components of the customized wireless headset 100. These components include, in addition to the microphone and speaker, a manipulation device, a charging device, a battery, an antenna device, a wireless communication module, and the like.

For clarity, the microphone and speaker disposed in the jacket 120 are not shown in FIG. 1, and only a portion of the circuitry 150 is shown. The microphone, speaker and complete circuit 150 are shown in fig. 2. Fig. 2 is an exploded view 200 of an example of the capsule 120, microphone 230, speaker 240, and circuitry 150 of the customized wireless headset 100 according to an embodiment of the present disclosure, which clearly shows the example of the microphone 230, speaker 240, and circuitry 150 after being obscured by the capsule 120.

Referring back to FIG. 1, the capsule 120 has an opening 122 that is connected to the opening 112 of the custom shell 110 by a sound guide tube 160. Thus, sound emitted by speaker 240 in capsule 120 may pass from opening 112 of customized housing 110 through sound guide tube 160 via capsule 120 to the user's ear. In some embodiments, a dust guard including a sound guide hole is provided at the opening 112 of the customized case 110. The dust guard may prevent debris (e.g., dust, earwax, etc.) from entering the custom shell 110, and the sound guide holes therein may help convey sound to the user. Hereinafter, the dust-proof device will be described in detail with reference to fig. 7 to 9.

In some embodiments, as shown in fig. 1, the sound guide tube 160 may be a hollow tube formed in the custom shell 110. For example, such a sound guide tube 160 may be formed by 3D printing the customized case 110. That is, the sound guide tube 160 may be a hollow duct left in the customized housing 110 for 3D printing. In this way, the custom shell 110 and the space reserved for the sound guide tube 160 can be integrally formed conveniently and efficiently by the 3D printing technique.

Alternatively or additionally, in some embodiments, the sound guide tube may also be formed from a tube separate from the custom shell 110. Fig. 3 is a perspective view of another example customized wireless headset 300 according to an embodiment of the present disclosure. Unlike fig. 1, the sound guide tube 360 is not formed by 3D printing the custom case 310, but is a tube independent of the custom case 310. The tube extends out of the opening 122 of the jacket 120 and is attached inside the opening 312 of the custom shell 310. For example, the tube may be attached to the inside of the opening 312 of the custom shell 310 via an adhesive. However, the attachment means is not limited thereto, and may be any suitable attachment means, such as fixing by a fastener, or the like. In this way, the sound guide tube 360 can be flexibly adapted to the customized housing 310 and audio assembly and the possibility of replacing the sound guide tube 360 is provided.

For clarity, the microphone and speaker disposed in the wrap 120 are also not shown in FIG. 3 and will be shown in FIG. 4. Fig. 4 is an exploded view 400 of an example of the sound guide tube 360, the jacket 120, the microphone 230, the speaker 240, and the circuitry 150 of the customized wireless headset 300, clearly illustrating an example of the microphone 230, the speaker 240, and the circuitry 150 after being obscured by no jacket 120, according to an embodiment of the present disclosure. It is understood that the

sound guide tubes

160 and 360 are identical in other respects (e.g., shape and size, etc.) except for the formation manner, and thus further description of the sound guide tube 360 is omitted in the present disclosure.

The position, connection relationship and formation of the sound guiding tube 160 are described above, and the shape and size of the sound guiding tube 160 will be further described below. The dimensions of the sound guide tube 160 may be characterized by at least the length of the axis of the sound guide tube (hereinafter, alternatively referred to as "the length of the sound guide tube") and the average cross-sectional area of a plurality of cross-sections of the sound guide tube along the axis. In some embodiments, the axis of the sound guide tube 160 may be a line connecting the centers of the smallest circumscribed circles of the respective cross-sections of the sound guide tube 160. Further, the average cross-sectional area may be an average of areas of the respective cross-sections of the sound leading duct 160. Further, the shape of the sound guide tube 160 can be characterized at least by the shape of the respective cross-section and the curvature of the axis.

At least one of the size and shape of the sound guide tube 160 is matched with the customized housing, and the volume of the sound guide tube 160 is 30-35mm ³ . It is understood that the volume of the sound guide tube 160 may depend on the size of the sound guide tube 160. In some embodiments, the volume may be determined by the product of the length and the average cross-sectional area of the sound guide tube.

The principle of having the sound guide tube 160 with the predetermined volume is that, as described above, sound emitted by the speaker 240 in the capsule 120 can pass from the opening 112 of the customized housing 110 through the sound guide tube 160 via the capsule 120 to the ear of the user. In addition, the microphone 230 may monitor and cancel residual noise within the customized wireless headset 100. While the noise collected by the microphone 230 includes sound emitted by the speaker 240. The sound passes through the sound guide tube 160, and thus is influenced by the volume of the sound guide tube 160, and the sound collecting effect of the microphone 230 is influenced by the volume of the sound guide tube 160, and further the noise reduction effect of reducing the noise based on the noise collected by the microphone 230 is also influenced by the volume of the sound guide tube 160. In short, the volume of the sound guide tube 160 may affect the pick-up effect of the microphone 230 and further affect the noise reduction effect of the customized wireless headset 100.

In some embodiments, the pick-up effect of the microphone 230 may be characterized by the frequency response characteristic of the noise collected by the microphone 230. In this case, adjusting the volume of sound guide tube 160 may adjust the frequency response curve characteristics accordingly. And the volume is 30-35mm ³ The sound guide tube can realize ideal frequency response curve characteristics, so that noise reduction is optimized. In addition, since the volume of the sound guide tube 160 is within a certain range (e.g., 30-35 mm) ³ ) The frequency response curve characteristics will also be within a certain range, so the sound pickup effect of the microphone 230 will be consistent, and further the noise reduction effect of the customized wireless headset 100 will also be consistent.

Further, in some embodiments, the volume of the sound tube 160 may be further reduced depending on the desired frequency response characteristics desired to be achievedE.g., the volume of the sound guide tube 160 may be 32-33mm ³ More specifically, 32.81mm ³ . However, it should be understood that the range of the volume of the sound guide tube 160 is merely an example, and the volume of the sound guide tube 160 may take different ranges according to the frequency response characteristics that are ultimately desired to be achieved. Further, it should be understood that the frequency response characteristic being that of the noise collected by the microphone is also merely an example, and that the frequency response characteristic may also be that of the sound communicated into the ear of the user by the customized wireless headset 200.

In the above, the sound guiding tube 160 in the customized housing 110 is described. As described above, the volume of sound tube 160 may affect the frequency response characteristics, and adjusting the volume of sound tube 160 may adjust the frequency response characteristics accordingly. In fact, the sound guide tube 160 is part of the front cavity, and the frequency response characteristics of the customized wireless headset 100 are also affected by the volume of the front cavity. Hereinafter, the front chamber will be described.

In some embodiments, a filler may be disposed in the jacket 120. The filler can include at least a microphone 230, a speaker 240, and a fixture (not shown) for securing the microphone 230 and speaker 240 in the jacket 120. For example, the fixture can be a gel that is injected into the jacket 120. In addition, as described above, circuitry 250 may be disposed in enclosure 220 in addition to microphone 330 and speaker 340. In this case, the filler may further include a circuit 250.

The filler may divide the customized case 110 into a front chamber and a rear chamber that are not communicated with each other. The front chamber is a cavity formed by the sound guide tube 160 and the side of the jacket 120 communicating with the sound guide tube 160, and the rear chamber is a cavity of the custom shell 110 except for the front chamber and the filler, that is, a cavity on the side away from the sound guide tube 160. It should be understood that since the sound guide tube 160 is part of the front cavity and the sound guide tube 160 is adjustable according to the custom shell 110, the front cavity is also adjustable according to the custom shell 110. In some embodiments, the volume of the anterior chamber may be 0.1-0.2cm ² So that the customized wireless headset 100 realizes an ideal frequency response curve characteristic, thereby improving the sound pickup effect of the microphone 230 and the consistency of the sound pickup effect, andthe noise reduction effect of the customized wireless headset 100 and the consistency of the noise reduction effect are improved.

The volume of the sound guide tube 160 is described above, and hereinafter, how the sound guide tube 160 is fitted to the custom case 110 will be described. Specifically, the length, cross-sectional shape, cross-sectional area, curvature, and the like related to the shape and/or size of the sound guide tube 160 will be described. In some embodiments, the location of the capsule 120, and more particularly the location of the opening 122 of the capsule 120, may be determined based on at least one of the custom housing 110, and more particularly the shape and size of the custom housing 110. Thus, the shape and/or size of the sound guide tube 160 may be determined based on the location of the opening 122 of the jacket 120. The principle is that, as mentioned above, the ear canal may vary in length, thickness and shape of different users. Furthermore, the cavum concha space may also be different for different users. The position of the wrap 120 may be set differently depending on these factors. For example, if the ear canal of the user is small, the capsule 120 may be disposed in a space within the custom shell 110 corresponding to the concha cavity. And if the user's ear canal is large, the capsule 120 may be positioned in a space within the custom shell 110 corresponding to the ear canal.

After the position of the jacket 120 is determined, the position of the opening 122 of the jacket 120 is determined. Since the sound guide tube 160 connects the opening 122 of the capsule 120 and the opening 112 of the customized housing 110, the positions of both ends of the sound guide tube 160 are determined accordingly. Thus, the shape and/or size (e.g., length, cross-sectional shape, cross-sectional area, curvature, etc.) of the sound guide tube 160 may be adjusted according to the shape and/or size (e.g., length, cross-sectional shape, cross-sectional area, curvature, etc.) of the ear canal, such that the sound guide tube 160 can be well fitted to the customized case 110 and accommodated within the customized case 110, and the volume thereof reaches a desired volume to achieve a desired frequency response curve characteristic, thereby improving the sound pickup effect of the microphone 230 and the uniformity of the sound pickup effect, and improving the noise reduction effect of the customized wireless headset 100 and the uniformity of the noise reduction effect.

To this end, in some embodiments, the length of the sound guide tube 160 may be set to 3.4-29.1mm, and the average of the sound guide tube 160 may be setThe cross-sectional area is set to 1.1-9.7mm ² . In some embodiments, the cross-section of the sound guide tube 160 may be circular, in which case the average of the diameters of the various cross-sections may characterize the average cross-sectional area. For example, in an average cross-sectional area of 1.1 to 9.7mm ² In the case of (3), the average diameter may be 1.2 to 3.5 mm.

Further, since the user's ear canal length and thickness conform to a normal distribution, the length and average cross-sectional area of the sound guide tube 160 may be selected for most users (e.g., 90%) in order to save design and manufacturing costs. For example, in some embodiments, the length of the sound guide tube 160 may be set to 3.9-17mm, and the average cross-sectional area of the sound guide tube 160 may be set to 1.9-7.3mm ² . Further, as described above, in the case where the cross section of the sound guide tube 160 is circular, the average diameter may be 1.55 to 3.05 mm.

Further, in some embodiments, the length of the sound guide tube 160 may have a corresponding relationship with the average cross-sectional area. Thereby, a better fit to the ear canal situation of the user may be made and further manufacturing of the customized wireless headset may be facilitated. For example, a custom wireless headset can be conveniently manufactured with an average cross-sectional area of 4-4.3mm based on this correspondence ² And a length in the range of 7.2-8.6 mm. Or, from 4 to 4.3mm ² Conveniently selected from the range of 7.2-8.6mm and a length thereof. Therefore, the sound pickup or noise reduction effect can be conveniently improved in the manufacturing process, and the consistency of the effect can be realized. In addition, the range of lengths and average cross-sectional areas also allows for tolerances in the manufacturing process. As an example, the correspondence may be as shown in table 1:

TABLE 1

Further, in some embodiments, the sound guiding tube 160 may have a regular shape (e.g., a cylinder, an elliptical cylinder, etc.). Alternatively or additionally, the sound guide tube 160 may also have an irregular shape (e.g., following the curvature of the ear canal, etc.). This is because, as described above, the shape and/or size of the sound guide tube 160 depends on the shape and/or size of the ear canal or custom shell 110. If the ear canal is large and straight, the sound guide tube 160 may have a regular shape. Whereas if the ear canal is less curved, the sound guide tube 160 may need to follow the ear canal and have an irregular shape. In the case where the sound leading duct 160 has a regular shape, the respective cross sections of the sound leading duct 160 are identical to each other, more specifically, the respective cross sections are identical to each other in shape and/or cross-sectional area. Whereas, in the case where the sound guide tube 160 has an irregular shape, at least two cross sections among the respective cross sections of the sound guide tube 160 are different from each other in shape and/or cross-sectional area.

Fig. 5 is a schematic diagram 500 of an example of the sound guide tube 160 according to an embodiment of the present disclosure, wherein the sound guide tube 160 has a regular shape, e.g., a cylinder. As shown in fig. 5, the length of the sound guide tube 160 is the height of the cylinder. Further, all the cross sections of the sound guiding duct 160 are circular cross sections having the same shape and cross sectional area.

By way of comparison, fig. 6 is a schematic view 600 of another example of a sound guide tube 160 according to an embodiment of the present disclosure, wherein the sound guide tube 160 has an irregular shape. As shown in fig. 6, the length of the sound guide tube 160 is a length measured along the extending direction of the axis of the sound guide tube 160. At least two cross-sections of the sound guiding duct 160 have different shapes and cross-sectional areas. For example, the first cross-section is elliptical and the second cross-section is irregularly shaped, and the cross-sectional area of the first cross-section is greater than the cross-sectional area of the second cross-section.

In this way, by designing the shape and size of the front chamber sound guide tube in accordance with the custom shell, the sound guide tube can be matched with and appropriately accommodated in the custom shell, and has a desired volume. Therefore, the pickup effect and the consistency of the pickup effect of the microphone of the customized wireless earphone can be improved, the noise reduction effect and the consistency of the noise reduction effect of the customized wireless earphone are improved, and the adaptability and the comfort of the customized wireless earphone to a user are obviously improved.

Further, as described above, in some embodiments, a dust guard including a sound guide hole is provided at the opening 112 of the customized case 110. The dust guard may prevent debris (e.g., dust, earwax, etc.) from entering the custom shell, and the sound guide holes therein may help convey sound to the user. The dust-proof means will be described in detail herein with reference to fig. 7-9.

Fig. 7 is a perspective view 700 of an example custom wireless headset 100 provided with a dust guard 710 according to an embodiment of the present disclosure, and fig. 8 is a cross-sectional view 800 of the dust guard 710 provided at the opening 112 of the custom housing 110 according to an embodiment of the present disclosure. As shown in fig. 7 and 8, a dust guard 710 may be provided at the opening 112 of the custom shell 110. In some embodiments, a stepped structure may be printed at the end of the sound guide tube 160 near the opening 112 when the customized housing 110 is 3D printed, whereby the dust guard 710 may be inserted into the stepped structure.

Alternatively, in the case where the sound guide tube 360 is formed of a tube independent from the customized case 110, the dust-proof device 710 may also be attached at the end of the sound guide tube 360 near the opening 312. The dust guard 710 may be attached to the sound guide tube 360 by any means. For example, the dust proof device 710 may be inserted into the end of the sound guide tube 360, or may be attached to the end of the sound guide tube 360 by an adhesive or a fastener.

Fig. 9 is a schematic view of an example dust guard 710, according to an embodiment of the present disclosure. As shown in fig. 9, the dust-proof device 710 includes a sound guide hole 910. The sound guide hole 910 may be implemented by a mesh opening. It is understood that the sound guide holes 910 may be implemented by any suitable structure. For example, the sound guide hole 910 may be implemented by a plurality of hole-shaped openings on the film. Thus, the dust-proof device 710 has both the echo membrane function and the function of preventing foreign matter from entering the custom shell.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A customized wireless headset, comprising:

a custom housing that fits the user's ear; and

an audio assembly comprising a microphone, a speaker and a jacket, the microphone and the speaker being disposed in the jacket, an opening of the jacket being connected to an opening of the custom shell by a sound guide tube, at least one of the size and shape of the sound guide tube matching the custom shell, and the sound guide tube having a volume of 30-35mm ³ 。

2. The customized wireless headset of claim 1, wherein the volume is 32-33mm ³ 。

3. The customized wireless headset of claim 1 or 2, wherein the dimensions of the sound guide tube are characterized by the length of the axis of the sound guide tube and the average cross-sectional area of a plurality of cross-sections of the sound guide tube along the axis, and the shape of the sound guide tube is characterized by the shape of the plurality of cross-sections and the degree of curvature of the axis.

4. The customized wireless headset of claim 3, wherein the length is 3.4-29.1mm and the average cross-sectional area is 1.1-9.7mm ² 。

5. The customized wireless headset of claim 4, wherein the length is 3.9-17mm and the average cross-sectional area is 1.9-7.3mm ² 。

6. The customized wireless headset of claim 5, wherein the length has a correspondence with the average cross-sectional area, and the correspondence comprises at least one of:

the average cross-sectional area is 4-4.3mm ² And the length is 7.2-8.6 mm;

the average cross-sectional area is 4.8-5.1mm ² And the length is 6-7.4 mm;

the average cross-sectional area is 3.3-3.6mm ² And the length is 8.8-10.2 mm;

the average cross-sectional area is 1.9-2.1mm ² And the length is 15.6-17 mm.

7. The customized wireless headset of claim 3, wherein the length and the average cross-sectional area are determined based on a location of an opening of the capsule determined based on at least one of a shape and a size of the customized housing.

8. The customized wireless headset of claim 3, wherein at least two cross-sections of the plurality of cross-sections differ from each other in at least one of:

shape, and

cross sectional area.

9. The customized wireless headset of claim 3, wherein the plurality of cross-sections are identical to each other.

10. The customized wireless headset of claim 1 or 2, wherein the sound conduit is a hollow conduit formed in the customized housing.

11. The customized wireless headset of claim 10, wherein the sound conduit is a hollow conduit formed by 3D printing the customized housing.

12. The customized wireless headset according to claim 1 or 2, wherein the sound guide tube is formed by a tube separate from the customized housing, the tube extending from the opening of the capsule and being attached inside the opening of the customized housing.

13. The custom wireless earphone of claim 12, wherein the tube is attached to the open inside of the custom shell via an adhesive.

14. The customized wireless earphone according to claim 1 or 2, wherein a filler is disposed in the sheath, the filler divides the customized housing into a front cavity and a rear cavity which are not communicated with each other, the front cavity is a cavity formed by the sound guide tube and one side of the sheath communicated with the sound guide tube, and the rear cavity is a cavity of the customized housing except the front cavity and the filler.

15. The customized wireless headset of claim 14, wherein the filler comprises at least the microphone, the speaker, and a fixture for securing the microphone and the speaker in the enclosure.

16. The customized wireless headset of claim 15, wherein the fixture is a gel that is impregnated into the wrap.

17. The customized wireless headset of claim 14, wherein the front cavity has a volume of 0.1-0.2cm ² 。

18. The customized wireless headset according to claim 1 or 2, wherein a dust-proof device comprising a sound-guiding hole is provided at the opening of the customized housing.

19. The customized wireless headset of claim 1 or 2, wherein the microphone is configured to collect sound entering the user's ear as noise for noise reduction processing, at least a portion of the noise being sound emitted by the speaker.