CN213126383U

CN213126383U - Microphone noise elimination structure, mirror holder and head-mounted display device

Info

Publication number: CN213126383U
Application number: CN202020965742.9U
Authority: CN
Inventors: 黄凯琪
Original assignee: Guangzhou Shixiang Technology Co Ltd
Current assignee: Guangzhou Shixiang Technology Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-05-04
Anticipated expiration: 2030-05-29

Abstract

The utility model provides a microphone structure of making an uproar that disappears, include: the noise-eliminating device comprises a shell, a noise-eliminating sleeve and a microphone; an accommodating cavity with an opening at one side is formed on the shell, and the microphone is arranged at the top of the accommodating cavity; the noise elimination sleeve comprises a sleeve body matched with the accommodating cavity in shape and a partition plate arranged in the sleeve body, and the partition plate is provided with a first sound receiving hole; the top surface and one side surface of the sleeve body are provided with openings, the bottom of the sleeve body is provided with a second sound receiving hole, and the projection positions of the second sound receiving hole and the first sound receiving hole in the vertical direction are mutually staggered; the noise-eliminating sleeve is embedded into the accommodating cavity through an opening on one side of the accommodating cavity. The utility model discloses a microphone structure of making an uproar through making an uproar cover and forming two cavities fast, under the water conservancy diversion through two mutual staggered receipts sound holes, wind mainly at the torrent that first cavity formed, sheltered from through the baffle, has reduced the torrent production of second cavity to eliminate or reduced the wind of microphone and made an uproar.

Description

Microphone noise elimination structure, mirror holder and head-mounted display device

Technical Field

The utility model relates to a microphone technical field, concretely relates to microphone noise elimination structure, mirror holder and head-mounted display device.

Background

With the progress of society and the development of technology, communication products such as mobile phone devices, hands-free devices, and head-mounted devices play more and more important roles in daily life and in the patent field. Meanwhile, with the continuous rise of traffic noise and life noise and the improvement of the call quality requirement of users, the acoustic performance of the microphone of the existing product is not enough to meet the requirements of the users.

It is difficult to avoid the influence of wind noise when the microphone is used. When the wind encounters an obstacle, turbulence (also called turbulence) is generated, so that the microphone can capture wind noise. The wind creates turbulence around the cavity of the microphone, which causes fluctuations in the air pressure near the cavity of the microphone. Turbulence can not directly act on the microphone, and sound pressure fluctuation amplitude caused by turbulence is very small under the condition that wind speed is very small, so that the microphone is not easy to sense by human ears. But the actual situation is that the wind noise of the microphone is still obvious when the wind speed is small. This involves, among other things, air column resonance, turbulence-induced air pressure changes, amplification of noise from turbulence by resonating with the air column in the cavity of the microphone, which amplified noise is picked up by the microphone, creating wind noise.

When applied to a communication device with a microphone, the wind noise can cover the voice of a person speaking and make the person inaudible.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the shortcoming and not enough among the prior art, provide a microphone structure of making an uproar, mirror holder and wear-type display device of making an uproar.

An embodiment of the utility model provides a microphone structure of making an uproar that disappears, include: the noise-eliminating device comprises a shell, a noise-eliminating sleeve and a microphone;

an accommodating cavity with an opening at one side is formed on the shell, and the microphone is arranged at the top of the accommodating cavity;

the noise-eliminating sleeve comprises a sleeve body matched with the accommodating cavity in shape and a partition plate arranged in the sleeve body, the sleeve body is hollow, the partition plate divides the sleeve body into a first cavity and a second cavity, the first cavity is positioned below the second cavity, and the partition plate is provided with a first sound-absorbing hole communicated with the first cavity and the second cavity;

the top surface and one side surface of the sleeve body are provided with openings, the bottom of the sleeve body is provided with a second sound-emitting hole communicated with the first chamber, and the projection positions of the second sound-emitting hole and the first sound-emitting hole in the vertical direction are mutually staggered;

the noise-eliminating sleeve is embedded into the accommodating cavity through the opening on one side of the accommodating cavity, the second sound-absorbing hole corresponds to the microphone, the microphone extends into the second cavity through the opening on the top surface of the noise-eliminating sleeve, and the shell blocks the top surface and the side surface of the sleeve body.

Compared with the prior art, the staggered sound receiving holes of the microphone noise elimination structure avoid the wind noise of the microphone caused by the external wind current directly, and the noise elimination sleeve forms two cavities rapidly, under the flow guidance of the two staggered sound receiving holes, the wind mainly forms turbulence in the first cavity and is shielded by the partition plate, the turbulence generation of the second cavity is reduced, the microphone is prevented from picking up the turbulence, and the wind noise of the microphone is eliminated or reduced; additionally, the utility model discloses a microphone structure of making an uproar that disappears simple structure, the production of being convenient for and easily installation.

Further, the projection positions of the first acoustic hole and the microphone in the vertical direction are mutually staggered. The microphone is far away from the wind current entering from the first acoustic hole, and the noise reduction effect is enhanced.

Further, the cover body is a silica gel cover. The elastic silica gel sleeve can be clamped into the accommodating cavity, so that the installation is convenient.

Further, a notch part is arranged at the position, corresponding to the microphone, of the bottom of the accommodating cavity;

the bottom of the sleeve body is provided with a bulge part matched with the notch part in shape, and the bulge part is provided with a second sound receiving hole communicated with the first cavity;

when the noise-eliminating sleeve is embedded into the accommodating cavity, the protruding portion is clamped with the notch portion. The stability of the sleeve body installation is increased.

Further, the protruding portion is annular. The shape of the second sound receiving hole is matched with that of the second sound receiving hole.

Further, the protruding part is made of silica gel. The elastic convex part can be clamped into the accommodating cavity, so that the mounting stability of the sleeve body is improved.

An embodiment of the utility model provides a mirror holder, include: the noise-canceling microphone structure comprises a spectacle frame body and the noise-canceling microphone structure, wherein the noise-canceling microphone structure is arranged on the spectacle frame body through the shell.

Compared with the prior art, the utility model discloses an spectacle frame has microphone structure of making an uproar that disappears, can eliminate or reduce the wind of mobile communication equipment's microphone and make an uproar.

Further, spectacle frame body includes the picture frame and sets up the mirror leg of picture frame both sides, the microphone structure of making an uproar sets up the picture frame is inboard, the second is taken a sound the hole and is faced the picture frame below. The second acoustic opening is facilitated to pick up sound.

An embodiment of the utility model provides a head-mounted display device, include: as described above, the mirror holder and the virtual reality device or the augmented reality device provided on the mirror holder are supported by the mirror frame.

Compared with the prior art, the utility model discloses a head-mounted display device has microphone structure of making an uproar that disappears, can eliminate or reduce the wind of microphone and make an uproar, improves virtual reality or augmented reality's experience effect.

In order that the invention may be more clearly understood, particular embodiments of the invention will now be described with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a noise canceling structure of a microphone according to an embodiment of the present invention when a noise canceling sleeve is not inserted into a receiving cavity;

FIG. 2 is a block diagram of the noise canceling sleeve of FIG. 1;

fig. 3 is a cross-sectional view of the noise canceling structure of the microphone shown in fig. 1 with the noise canceling sleeve inserted into the receiving cavity;

fig. 4 is a cross-sectional view of a frame according to another embodiment of the present invention;

fig. 5 is a partial structural schematic view of the frame of fig. 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1, which is a schematic structural diagram of a noise canceling structure of a microphone according to an embodiment of the present invention when a noise canceling sleeve is not embedded in a receiving cavity, wherein the noise canceling structure of the microphone 30 includes: a housing 10, a noise canceling cover 20, and a microphone 30.

Be formed with one side open-ended on the casing 10 and hold chamber 11, microphone 30 sets up hold chamber 11 top wherein, the top that holds chamber 11 is provided with the installing port, and microphone 30 wears to establish spacing in this mounting hole 13, and microphone 30's output stretches out from holding chamber 11 top, and microphone 30 input stretches into and holds chamber 11.

Please refer to fig. 2, which is a structural diagram of the noise canceling sleeve shown in fig. 1. The noise-eliminating sleeve 20 comprises a sleeve body 21 matched with the accommodating cavity 11 in shape and a partition plate 22 arranged in the sleeve body 21, the sleeve body 21 is hollow, the partition plate 22 divides the sleeve body 21 into a first cavity 23 and a second cavity 24, the first cavity 23 is positioned below the second cavity 24, and the partition plate 22 is provided with a first sound-absorbing hole 26 communicated with the first cavity 23 and the second cavity 24. In this embodiment, the first acoustic opening 26 is defined by a notch on the side of the partition 22 and the sidewall of the accommodating chamber 11.

Please refer to fig. 3, which is a cross-sectional view of the noise canceling structure of the microphone shown in fig. 1 when the noise canceling sleeve is inserted into the accommodating cavity. The top surface and one side surface of the sleeve body 21 are opened, the bottom of the sleeve body 21 is provided with a second sound emission hole 25 communicated with the first chamber 23, and the projection positions of the second sound emission hole 25 and the first sound emission hole 26 in the vertical direction are mutually staggered. When the wind flow of the sleeve body part passes through the second sound collecting hole, the difference between the internal pressure and the external pressure of the first cavity and the external pressure of the sleeve body part can be caused, so that turbulent flow is caused in the first cavity, the sound collecting holes staggered with each other avoid that the wind flow outside directly causes the wind noise of the microphone 30, and the turbulent flow formed in the first cavity 23 is difficult to influence on the second cavity 24, so that the wind noise picked up by the microphone 30 positioned in the second cavity 24 is further reduced, preferably, the projection positions of the first sound collecting hole 26 and the microphone 30 in the vertical direction are staggered with each other, in the embodiment, the projection positions of the microphone 30, the second sound collecting hole 25 and the first sound collecting hole 26 in the vertical direction are staggered with each other, and the wind noise picked up by the microphone 30 can be further reduced by arranging the bent wind flow path.

The noise reduction sleeve 20 is embedded into the accommodating cavity 11 through an opening on one side of the accommodating cavity 11, the second sound-absorbing hole 25 corresponds to the microphone 30, the microphone 30 extends into the second cavity 24 through the opening on the top surface of the noise reduction sleeve 20, the shell 10 blocks the openings on the top surface and the side surface of the sleeve body 21, the side edge of the partition plate 22 abuts against the side wall of the accommodating cavity 11, and in the embodiment, after the side edge of the partition plate 22 abuts against the side wall of the accommodating cavity 11, a first sound-absorbing hole is defined by a notch on the side edge of the partition plate 22 and the side wall of the accommodating cavity 11 together. Preferably, the sleeve body 21 is a silica gel sleeve, and the sleeve body 21 is slightly larger than the accommodating cavity 11, so that the sleeve body 21 can be conveniently clamped in the accommodating cavity 11; of course, a limiting member for abutting the sleeve body 21 against the accommodating cavity 11 may be disposed outside the accommodating cavity 11.

In some embodiments, a notch portion 12 is provided at a position of the bottom of the accommodating chamber 11 corresponding to the microphone 30; the bottom of the sleeve body 21 is provided with a protruding portion 27 matched with the notch portion 12 in shape, and the protruding portion 27 is provided with the second sound emission hole 25 communicated with the first chamber 23; when the noise canceling cover 20 is fitted into the housing cavity 11, the protrusion 27 engages with the notch 12. Preferably, the protrusion 27 has a ring shape. Preferably, the protruding portion 27 is made of a silicone material, and the protruding portion 27 with elasticity can be clamped into the accommodating cavity 11, so that the sleeve body 21 can be installed more stably.

In some embodiments, the housing 10 further includes an eyeglass mount 14, and the eyeglass mount 14 is configured to mate with eyeglasses.

Referring to fig. 4 and 5, which are a cross-sectional view of a frame according to embodiment 2 of the present invention and a partial schematic structural view of the frame shown in fig. 4, respectively, the noise canceling structure of the microphone 30 can be applied to a frame, and the frame includes: the noise reduction structure comprises a spectacle frame body and the microphone 30 noise reduction structure, wherein the microphone 30 noise reduction structure is arranged on the spectacle frame body through the shell 10.

In some embodiments, the spectacle frame body comprises a frame 41 and temples 42 arranged on two sides of the frame 41, the noise cancellation structure of the microphone 30 is arranged inside the frame 41 and is located close to the temples 42, and the second sound receiving hole 25 faces below the frame 41, so as to pick up the sound emitted by the user.

Compared with the prior art, the utility model discloses a spectacle frame has microphone structure of making an uproar that disappears, can eliminate or reduce the wind of the microphone of mobile communication equipment and make an uproar to the second is taken care of and is corresponded user's emergence position, the pickup of being convenient for.

The above glasses frame can be applied to a head-mounted display device, and the head-mounted display device includes: as described above, the mirror frame, and the virtual reality device or the augmented reality device provided in the mirror frame are supported by the mirror frame 41.

Compared with the prior art, the utility model discloses a head-mounted display device has microphone structure of making an uproar that disappears, can eliminate or reduce the wind of microphone and make an uproar, augmented virtual reality or augmented reality's experience effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A microphone noise canceling structure, comprising: the noise-eliminating device comprises a shell, a noise-eliminating sleeve and a microphone;

2. A microphone noise canceling structure according to claim 1, wherein: the first acoustic hole and the microphone are mutually staggered in projection position in the vertical direction.

3. A microphone noise canceling structure according to claim 1, wherein: the sleeve body is a silica gel sleeve.

4. A microphone noise canceling structure according to claim 1, wherein: a notch part is arranged at the bottom of the accommodating cavity and corresponds to the microphone;

when the noise-eliminating sleeve is embedded into the accommodating cavity, the protruding portion is clamped with the notch portion.

5. A microphone noise canceling structure according to claim 4, wherein: the convex part is annular.

6. A microphone noise canceling structure according to claim 5, wherein: the convex part is made of silica gel.

7. A microphone noise canceling structure according to any one of claims 1 to 6, wherein: the shell further comprises a glasses mounting part, and the glasses mounting part is used for being mounted in a matched mode with glasses.

8. A frame, comprising: spectacle frame body and microphone noise cancellation structure according to one of claims 1 to 7, which is arranged on the spectacle frame body by means of the housing.

9. A frame as in claim 8, wherein: the spectacle frame body comprises a spectacle frame and spectacle legs arranged on two sides of the spectacle frame, the microphone noise elimination structure is arranged on the inner side of the spectacle frame, and the second sound receiving hole faces the lower portion of the spectacle frame.

10. A head-mounted display device, comprising: a frame as claimed in any one of claims 8 or 9, and a virtual reality device or an augmented reality device disposed on the frame, a display element of the virtual reality device or the augmented reality device being supported by the frame.