CN213818148U

CN213818148U - Far-field noise elimination assembly and electronic equipment

Info

Publication number: CN213818148U
Application number: CN202022808264.3U
Authority: CN
Inventors: 王乾; 张�杰
Original assignee: Dongguan Yili Precision Manufacturing Co ltd
Current assignee: Dongguan Yili Precision Manufacturing Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-27
Anticipated expiration: 2030-11-26

Abstract

The utility model provides a far field noise elimination subassembly and electronic equipment, far field noise elimination subassembly includes: the cavity body shell is internally provided with a cavity chamber; the loudspeaker support is arranged in the cavity, the cavity is divided into a first cavity and a second cavity by the loudspeaker support, the loudspeaker support can move in the cavity to adjust the volume of the first cavity, and a cavity shell is provided with a first sound outlet hole communicated with the first cavity and a second sound outlet hole communicated with the second cavity; the horn single body is arranged on the horn bracket; the adjusting piece is connected with the horn support, and at least one part of the adjusting piece extends out of the cavity shell to drive the horn support to move. The utility model discloses far field noise elimination subassembly through the activity of regulating part drive horn bracket in the cavity, changes the volume of first chamber and second chamber in the cavity shell. The volume change through first chamber and second chamber adjusts the audio that the people's ear heard, guarantees that the user can carry out the tuning according to the hobby of oneself, improves the user and uses experience.

Description

Far-field noise elimination assembly and electronic equipment

Technical Field

The utility model relates to a technical field is made to sound transmission equipment, more specifically relates to a far field noise elimination subassembly and electronic equipment who has this far field noise elimination subassembly.

Background

At present, most AR/VR electronic products realize listening by playing audio externally. When a user listens, other people can listen, and the far-field noise elimination effect is poor. And current AR/VR electronic product is relatively poor to the regulation effect of audio, and the user can't carry out the tuning according to oneself hobby, reduces user's use and experiences.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a new technical scheme of far field noise elimination subassembly and electronic equipment, it is poor to effectively solve among the prior art far field noise elimination effect, and the user can't carry out the problem of tuning according to oneself hobby.

According to the utility model discloses an aspect provides a far field noise elimination subassembly, include: the cavity body shell is internally provided with a cavity chamber; the horn support is arranged in the cavity, the horn support divides the cavity into a first cavity and a second cavity, the horn support can move in the cavity to adjust the volume of the first cavity, and the cavity shell is provided with a first sound outlet hole communicated with the first cavity and a second sound outlet hole communicated with the second cavity; the horn single body is arranged on the horn bracket; the adjusting part, the adjusting part with horn bracket connects, at least a part of adjusting part stretches out cavity shell is in order to drive horn bracket activity.

Further, the horn support includes: the bracket body is of a sheet structure, the chamber is divided into the first cavity and the second cavity by the bracket body, the first side of the bracket body faces the first cavity, the second side of the bracket body faces the second cavity, and the horn unit is arranged on the bracket body; the transmission plate is arranged on the second side of the support body and connected with the support body, the first end of the adjusting piece is connected with the transmission plate, and the second end of the adjusting piece extends out of the cavity shell.

Furthermore, the second sound outlet is arranged on a slide way on the cavity shell, the first end of the adjusting piece is connected with the transmission plate, the second end of the adjusting piece extends out of the slide way, and the extending direction of the slide way is movable, so that the horn support can adjust the volume of the first cavity.

Furthermore, a first through hole which is communicated along the thickness direction of the transmission plate is formed in the transmission plate, the position of the first through hole corresponds to that of the slide way, and the first end of the adjusting piece penetrates through the slide way to be installed in the first through hole.

Further, the adjusting member is rotatable about its own axis within the first through hole, and the transmission plate is provided with a second through hole arranged spaced apart from the first through hole, and the far-field noise elimination assembly further includes: the tuning disc, the tuning disc with the first end of regulating part is connected, be equipped with a plurality of apart tone holes of arranging along its circumference on the tuning disc, the tuning disc with the regulating part rotates in step to adjust different tone holes with the second through-hole intercommunication.

Further, the cavity shell is provided with a third through hole communicated with the second cavity, and the first end of the adjusting piece penetrates through the third through hole to be connected with the transmission plate.

Further, the first end of regulating part is equipped with the gear, the driving plate be equipped with gear engagement's rack, the regulating part is rotatable in order to drive around its own axis the gear, the gear drives the rack is so that loudspeaker support adjusts the volume of first chamber.

Further, the far field noise elimination assembly further comprises: the tuning dish, the tuning dish rotationally locates around its axis the second intracavity, be equipped with a plurality of tone tuning holes of arranging along its circumference interval on the tuning dish, the tuning dish with the regulating part is connected and by the regulating part drive, in order to adjust the difference the tone tuning hole with the second goes out the sound hole intercommunication.

Further, the third through hole is a long hole, the adjusting piece is switchable between a first state and a second state, when the adjusting piece is in the first state, the adjusting piece is connected with the transmission plate, and when the adjusting piece is in the second state, the adjusting piece is connected with the tuning disc.

Further, the tuning disc is circular, and the periphery of the tuning disc is provided with insections meshed with the gear.

According to a second aspect of the present invention, there is provided an electronic device, comprising the far field noise elimination assembly in the above embodiment.

According to the utility model discloses far field noise elimination subassembly can drive horn bracket at the indoor activity of cavity through the regulating part, changes the volume of first chamber and second chamber in the cavity shell. The volume change through first chamber and second chamber adjusts the audio that the people's ear heard, guarantees that the user can carry out the tuning according to the hobby of oneself, improves the user and uses experience.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic structural view of a far field muffler assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a chamber housing in a far field muffler assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a horn support in a far field muffler assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an adjusting member and a tuning disc in a far field noise elimination assembly according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of the horn support and the adjuster in the far field muffler assembly according to an embodiment of the present invention after assembly;

fig. 6 is a schematic structural view of a far field muffler assembly according to another embodiment of the present invention;

fig. 7 is a schematic structural view of a chamber housing in a far field muffler assembly according to another embodiment of the present invention;

fig. 8 is a schematic structural view of a horn support in a far field muffler assembly according to another embodiment of the present invention;

fig. 9 is a schematic structural view of an adjustment member in a far field muffler assembly according to another embodiment of the present invention;

fig. 10 is a schematic structural view of a tuning disc in a far field muffling assembly according to another embodiment of the present invention;

fig. 11 is a cross-sectional view of a tuning disc and a chamber housing in a far field muffler assembly according to another embodiment of the present invention after assembly;

fig. 12 is a cross-sectional view of a far field muffler assembly according to another embodiment of the present invention in a first state;

fig. 13 is a cross-sectional view of a far field muffler assembly in a second state according to another embodiment of the present invention;

fig. 14 is a diagram of the muffling effect of the far-field muffling assembly according to the embodiment of the present invention.

Reference numerals:

a far field muffler assembly 100;

a cavity housing 10; a chamber 11; a first cavity 111; a second chamber 112; a first sound outlet hole 12; a second sound outlet hole 13;

a horn support 20; a holder body 21; a drive plate 22; a rack 23;

a horn unit 30;

an adjusting member 40; a handle 41; a gear 42;

a first through hole 51; a second through hole 52; a third through hole 53;

a tuning disk 60; a tone hole 61; insection 62.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The far field noise elimination assembly 100 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 13, a far field noise elimination assembly 100 according to an embodiment of the present invention includes a chamber housing 10, a horn support 20, a horn unit 30, and an adjusting member 40.

Specifically, a cavity 11 is arranged in the cavity housing 10, the horn support 20 is arranged in the cavity 11, the horn support 20 divides the cavity 11 into a first cavity 111 and a second cavity 112, the horn support 20 is movable in the cavity 11 to adjust the volume of the first cavity 111, and the cavity housing 10 is provided with a first sound outlet 12 communicated with the first cavity 111 and a second sound outlet 13 communicated with the second cavity 112. The horn unit 30 is disposed on the horn support 20, the adjusting member 40 is connected to the horn support 20, and at least a portion of the adjusting member 40 extends out of the cavity housing 10 to drive the horn support 20 to move.

In other words, as shown in fig. 1 and 6, the far field noise elimination assembly 100 according to the embodiment of the present invention mainly comprises the chamber housing 10, the horn support 20, the horn unit 30, and the adjusting member 40. Wherein a cavity 11 is formed in the cavity housing 10, and the specific shape of the cavity housing 10 is not particularly limited in this application. In the following embodiments of the present invention, the cavity housing 10 may be processed into a substantially rectangular housing (see fig. 2). The horn supporter 20 may be disposed within the chamber 11, and the chamber 11 may be partitioned into a first chamber 111 and a second chamber 112 by the horn supporter 20. Herein, the first cavity 111 may be referred to as a front cavity of the chamber housing 10, and the second cavity 112 may be referred to as a rear cavity of the chamber housing 10. Horn bracket 20 can be in cavity 11 internalization, and the volume of first chamber 111 and second chamber 112 can be adjusted in the activity through horn bracket 20, and the audio that the people's ear heard is adjusted in the volume change through first chamber 111 and second chamber 112, guarantees that the user can carry out the tuning according to the hobby of oneself, improves user and uses experience.

Referring to fig. 2, the chamber housing 10 may be provided with a first sound outlet hole 12 and a second sound outlet hole 13, wherein the first sound outlet hole 12 may be disposed at a front cavity position of the chamber housing 10, the first sound outlet hole 12 may be disposed substantially at a bottom of the chamber housing 10, and the first sound outlet hole 12 communicates with the first cavity 111. The second sound outlet hole 13 may be disposed at a rear cavity position of the chamber housing 10, and the second sound outlet hole 13 may be disposed substantially at an upper portion of the chamber housing 10, the second sound outlet hole 13 communicating with the second cavity 112. Of course, the specific positions and the specific shapes of the first sound outlet hole 12 and the second sound outlet hole 13 on the chamber body shell 10 can be specifically defined according to the actual needs. The horn unit 30 can be installed on the horn bracket 20, when the horn unit 30 vibrates, there is a phase difference between the front cavity and the rear cavity, and when the front cavity and the rear cavity are both opened (the first sound outlet 12 and the second sound outlet 13), there is an effect of signal cancellation. Adjusting part 40 can be connected with horn bracket 20, and at least a part of adjusting part 40 can stretch out cavity shell 10, and the user can drive horn bracket 20 through adjusting part 40 and move about in cavity 11 to reach the purpose of adjusting first chamber 111 and second chamber 112 volume, realize the regulation to the audio that the human ear heard.

Therefore, according to the far field noise elimination assembly 100 of the embodiment of the present invention, the horn support 20 can be driven to move in the chamber 11 through the adjusting member 40, so as to change the volume of the first cavity 111 and the second cavity 112 in the chamber housing 10. Through the volume change of first chamber 111 and second chamber 112, adjust the audio that the people's ear heard, guarantee that the user can carry out the tuning according to the hobby of oneself, improve the user and use experience.

According to an embodiment of the present invention, the horn bracket 20 includes a bracket body 21 and a driving plate 22.

Specifically, the bracket body 21 is a sheet structure, the bracket body 21 divides the chamber 11 into a first chamber 111 and a second chamber 112, a first side of the bracket body 21 faces the first chamber 111, a second side of the bracket body 21 faces the second chamber 112, and the speaker unit 30 is disposed on the bracket body 21. The driving plate 22 is disposed on the second side of the bracket body 21 and connected to the bracket body 21, the first end of the adjusting member 40 is connected to the driving plate 22, and the second end of the adjusting member 40 extends out of the cavity housing 10.

That is, as shown in fig. 3, the horn bracket 20 is mainly composed of a bracket body 21 and a transmission plate 22. Wherein the holder body 21 may be provided in a sheet structure, as shown in fig. 1, the holder body 21 may be vertically disposed within the chamber 11 and divide the chamber 11 into a first chamber 111 (front chamber) and a second chamber 112 (rear chamber). The side of the stent body 21 facing the first cavity 111 is a first side of the stent body 21, and the side of the stent body 21 facing the second cavity 112 is a second side of the stent body 21. The horn unit 30 may be mounted on the bracket body 21. The driving plate 22 is disposed on a side of the bracket body 21 facing the second cavity 112, and the driving plate 22 may be integrally connected with the bracket body 21, so that the adjusting member 40 moves the driving plate 22 and the bracket body 21 at the same time. A first end of the adjusting member 40 may be connected to the driving plate 22, a second end of the adjusting member 40 may protrude out of the chamber body case 10, and the first end and the second end of the adjusting member 40 may be opposite ends in a length direction of the adjusting member 40. The adjusting piece 40 can drive the transmission plate 22 to move in the cavity 11, and further drive the bracket body 21 to move in the cavity 11, so as to adjust the volumes of the first cavity 111 and the second cavity 112 in the cavity housing 10, and ensure that a user can adjust the sound effect according to the preference of the user.

In some embodiments of the present invention, the second sound outlet 13 is a slide way disposed on the cavity housing 10, the first end of the adjusting member 40 is connected to the driving plate 22, and the second end of the adjusting member 40 extends out of the slide way and is movable along the extending direction of the slide way, so that the horn support 20 can adjust the volume of the first cavity 111.

In other words, referring to fig. 2, the second sound outlet hole 13 may be formed substantially as a slide rail, which may be formed on the upper surface of the chamber body case 10 and communicates with the chamber 11. The shape of slide can be processed into rectangle, and of course, in this application, the concrete shape of slide can carry out concrete limit according to actual need. As shown in FIG. 1, one end of the adjusting member 40 may extend into the chamber 11 by sliding and be connected to the driving plate 22, and the other end of the adjusting member 40 extends out of the slide way. The adjusting member 40 may be formed in a substantially cylindrical shape, and one end of the adjusting member 40 extending out of the slide way (the second end of the adjusting member 40) may be formed as a handle 41, and the handle 41 is slightly higher than the upper surface of the chamber body housing 10, so as to facilitate the use of the user. The user can drive regulating part 40 through handle 41 and move in the extending direction of slide (the length direction of slide), and then drives horn bracket 20 and move in cavity 11, realizes the volume change of first chamber 111 and second chamber 112, guarantees that the user can carry out the audio according to own hobby and adjusts.

According to the utility model discloses an embodiment is equipped with the first through-hole 51 that link up along its thickness direction on the driving plate 22, and the position of first through-hole 51 is corresponding with the position of slide, and the first end of regulating part 40 is passed the slide and is installed in first through-hole 51.

That is, referring to fig. 3, the driving plate 22 may be provided with a first through hole 51, the first through hole 51 may penetrate through the driving plate 22 in the thickness direction, the position of the first through hole 51 corresponds to the position of the slide way, one end of the adjusting member 40 passes through the slide way and is installed in the first through hole 51, and the user drives the horn holder 20 to move in the cavity 11 through the adjusting member 40, so as to adjust the volumes of the first cavity 111 and the second cavity 112 in the cavity housing 10.

In some embodiments of the present invention, the adjusting member 40 is rotatable around its own axis in the first through hole 51, the transmission plate 22 is provided with a second through hole 52 spaced apart from the first through hole 51, and the far field noise elimination assembly 100 further includes: a tuning disk 60. The tuning disc 60 is connected with the first end of the adjusting piece 40, a plurality of tuning holes 61 which are arranged at intervals along the circumferential direction of the tuning disc 60 are formed in the tuning disc 60, and the tuning disc 60 and the adjusting piece 40 rotate synchronously to adjust the communication between different tuning holes 61 and the second through hole 52.

In other words, as shown in fig. 1 to 5, the adjusting member 40 may rotate about its own axis within the first through hole 51, and the transmission plate 22 may be provided with the second through hole 52, and the second through hole 52 may be disposed spaced apart from the first through hole 51. The second through hole 52 may have a larger aperture than the first through hole 51. The far field noise cancellation assembly 100 may also include a tuning disc 60. The tuning disc 60 may be mounted to a first end of the member 40, and the first end of the member 40 may be connected to the tuning disc 60 through a slideway. The regulating member 40 and the tuning disc 60 may constitute regulating means of the second sound outlet hole 13 (see fig. 4). The tuning disc 60 may be provided with a plurality of tuning holes 61, and the plurality of tuning holes 61 may be distributed at intervals along the circumferential direction of the tuning disc 60. The plurality of tuning holes 61 may have different hole diameters. Of course, the number and the aperture size of the tuning holes 61 on the tuning dial 60 can be specifically set according to actual needs. The tuning disc 60 can rotate synchronously with the adjusting piece 40, and a user can adjust different tuning holes 61 to be communicated with the second through holes 52 by rotating the adjusting piece 40, so that the far-field silencing effect is achieved.

As shown in fig. 1 and 5, the adjusting member 40 is connected to the transmission plate 22 through the first through hole 51, and the adjusting member 40 can adjust the centers of the different tuning holes 61 on the tuning disc 60 to correspond to the centers of the second through holes 52. The second end (handle 41) of the adjusting member 40 may be slightly higher than the upper plane of the chamber body housing 10 for the convenience of the user. The horn unit 30 is fixed on the bracket body 21, the transmission plate 22 and the bracket body 21 are integrally formed to form the horn bracket 20, and the transmission plate 22 and the bracket body 21 can move simultaneously.

When a user wears an electronic product (for example, an AR/VR product) having the far-field noise elimination assembly 100, the noise elimination effect of the far-field noise elimination assembly is as shown in fig. 14, where a curve a is a simulation effect curve heard by the wearer when both the front cavity and the rear cavity are opened, a curve b is a simulation effect curve heard by the wearer when only the front cavity is opened, a curve c is a simulation effect curve heard by a third person (another person) when only the front cavity is opened, and a curve d is a simulation effect curve heard by the third person (another person) when both the front cavity and the rear cavity are opened. The first sound outlet hole 12 on the current chamber (first chamber 111) is close to the ear, and the near 3cm can be regarded as being heard by the wearer (as shown by curves a and b), and the far 1m can be regarded as being heard by other people (as shown by curves c and d). As can be seen from fig. 14, when both the front and rear cavities are opened, the user's listening sound is less affected, but the sound heard by many other people can be reduced, and the far-field noise elimination effect is excellent.

The tuning disc 60 can be provided with four tuning holes 61 with different sizes, and the part of the tuning disc 60 without the tuning holes 61 can be used for closing. When the user is in actual use, the user can switch the size of the sound adjusting hole 61 through rotating the adjusting part 40 according to the difference of the main frequencies of the sound played by the loudspeaker, and the far-field noise elimination of different frequency bands is realized. If the user uses the adjusting piece 40 to move in the slide way, the position of the second sound outlet hole 13 on the second cavity 112 (back cavity) can be changed, and the function of adjusting the loudspeaker directivity is achieved. When the adjusting member moves in the slide way, the horn unit 30 can move along with the horn support 20, thereby changing the volume of the first cavity 111 and the second cavity 112. The volume changes of the front cavity and the rear cavity of the cavity shell 10 have certain adjusting effect on the sound effect heard by human ears, and a user can also tune according to own favor.

According to an embodiment of the present invention, the chamber body housing 10 is provided with a third through hole 53 communicating with the second chamber 112, and the first end of the adjusting member 40 passes through the third through hole 53 to be connected with the driving plate 22.

That is, referring to fig. 7, the second sound outlet hole 13 may be formed as a circular hole in the chamber housing 10. The chamber body housing 10 may further include a third through hole 53, the third through hole 53 may be communicated with the second chamber 112, the first end of the adjusting member 40 may pass through the third through hole 53 and be connected to the driving plate 22, the driving plate 22 is driven by the adjusting member 40 to move in the chamber 11, and the volumes of the first chamber 111 and the second chamber 112 in the chamber body housing 10 are adjusted.

Alternatively, as shown in fig. 9, a first end of the adjusting member 40 located in the cavity 11 may be machined with a gear 42, and the first end and the second end of the adjusting member 40 are both ends of the adjusting member 40 in the length direction. A first end of the adjusting member 40 may extend into the chamber 11, and a second end of the adjusting member 40 may be provided as a handle 41, so that a user can move the adjusting member 40 through the handle 41. Referring to fig. 8, the driving plate 22 may be formed with a rack 23 engaged with the gear 42. The adjusting member 40 can rotate around its own axis, and the cooperation between the gear 42 on the adjusting member 40 and the rack 23 on the transmission plate 22 can drive the horn bracket 20 to move in the chamber 11, so as to adjust the volumes of the first chamber 111 and the second chamber 112 in the chamber housing 10, thereby realizing the adjustment of the sound effect.

In some embodiments of the present invention, the far field noise cancellation assembly 100 further includes a tuning disc 60.

Specifically, the tuning disc 60 is rotatably disposed in the second cavity 112 around the axis thereof, a plurality of tuning holes 61 are formed in the tuning disc 60 and are spaced apart along the circumferential direction thereof, and the tuning disc 60 is connected to the adjusting member 40 and is driven by the adjusting member 40 to adjust the communication between different tuning holes 61 and the second sound outlet 13.

In other words, referring to fig. 6 and 10, the far field noise cancellation assembly 100 may also include a tuning disc 60. The tuning disc 60 may rotate about its axis and the tuning disc 60 may be disposed within the second chamber 112 through the first through hole 51. The tuning disc 60 may be provided with a plurality of tuning holes 61, and the plurality of tuning holes 61 may be distributed at intervals along the circumferential direction of the tuning disc 60. The pore sizes of the tuning holes 61 can be different, and of course, the number and pore sizes of the tuning holes 61 on the tuning disc 60 can be specifically limited according to actual needs. The tuning disc 60 can be connected with the adjusting piece 40, the adjusting piece 40 can drive the tuning disc 60 to rotate, different tuning holes 61 can be adjusted through rotation of the tuning disc 60 to be communicated with the second sound outlet 13, and the far-field noise elimination effect is achieved.

According to an embodiment of the utility model, third through-hole 53 is the elongated hole, and regulating part 40 is changeable between first state and second state, and when regulating part 40 was in the first state, regulating part 40 was connected with driving plate 22, and when regulating part 40 was in the second state, regulating part 40 was connected with tuning disc 60. The tuning disc 60 is circular, and the periphery of the tuning disc 60 is provided with insections 62 which are meshed with the gear 42.

That is, as shown in fig. 7 and 11, the third through hole 53 may be processed as a long hole. The adjustment member 40 is switchable between a first state and a second state. When the adjusting member 40 is in the first state, referring to fig. 12, the adjusting member 40 is located at a side of the third through hole 53 close to the transmission plate 22, the adjusting member 40 is connected to the transmission plate 22, and the transmission plate 22 can move in the chamber 11 by the cooperation of the gear 42 on the adjusting member 40 and the rack 23 on the transmission plate 22, so as to achieve the purpose of adjusting the volumes of the first chamber 111 and the second chamber 112. When the adjusting member 40 is in the second state, referring to fig. 13, the adjusting member 40 is located on the side of the third through hole 53 near the tuning disc 60, and the adjusting member 40 can be connected to the tuning disc 60. The tuning disc 60 can be processed into a circular disc body, the outer periphery of the tuning disc 60 is provided with insections 62 meshed with the gear 42, the tuning disc 60 can be driven to rotate by rotating the adjusting piece 40, different tuning holes 61 are adjusted to be communicated with the second sound outlet 13, and the far-field noise elimination effect is achieved.

In the present application, referring to fig. 6, the tuning disc 60 and the adjusting member 40 may constitute a regulating device, the tuning disc 60 may be installed in the cavity housing 10 through the first through hole 51, and the adjusting holes 61 on the tuning disc 60, which may be adjusted by the adjusting member 40, may respectively correspond to the circle centers of the second sound outlet holes 13. The adjusting part 40 is assembled with the cavity housing 10 through the third through hole 53, the horn unit 30 is installed on the bracket body 21, the transmission plate 22 is provided with a toothed rack 23, and the rack 23 can be meshed with the gear 42 on the adjusting part 40, so that the horn bracket 20 is driven to move. The third through hole 53 may be designed as an elliptical hole (or an oblong hole), the adjusting member 40 may be switched between different states in the third through hole 53, when the knob is in the first state, the gear 42 of the adjusting member 40 may be engaged with the rack 23 on the transmission plate 22, and at this time, if the user rotates the adjusting member 40, the transmission plate 22 may be pushed to move. Since the bracket body 21 and the transmission plate 22 are integrally connected, the horn bracket 20 can be moved in the chamber 11. If a user wants to adjust the size of the second sound outlet 13 of the second chamber 112, the adjusting member 40 can be switched to the second state, at this time, the gear 42 on the adjusting member 40 is separated from the rack 23 on the transmission plate 22, the gear 42 on the adjusting member 40 is engaged with the insections 62 on the tuning disc 60, and the tuning disc 60 can be driven to rotate by rotating the adjusting member 40. Therefore, through adjusting part 40 switching between first state and second state, can realize the regulation of loudspeaker monomer 30 position and second sound hole 13 respectively, satisfy user's user demand, promote user and use experience.

In summary, the far field noise elimination assembly 100 of the embodiment of the present invention can adjust the movement of the horn support 20 in the chamber 11 through the adjusting member 40, so as to change the volume of the first cavity 111 and the second cavity 112 in the chamber housing 10. Through the volume change of first chamber 111 and second chamber 112, adjust the audio that the people's ear heard, guarantee that the user can carry out the tuning according to the hobby of oneself, improve the user and use experience. Meanwhile, different tuning holes 61 on the tuning disc 60 can be adjusted to be communicated with the second sound outlet 13 through the adjusting piece 40, so that the far-field silencing effect is achieved. This far field noise elimination subassembly 100, overall structure is simple, and is easy and simple to handle, can adjust listening effect, can improve far field noise elimination effect again, effectively promotes user experience.

The present application also provides an electronic device including the far field noise cancellation assembly 100 of the above-described embodiments. The electronic device may be a headset or other AR/VR product. Because according to the utility model discloses far field noise elimination subassembly 100 has above-mentioned technological effect, consequently, according to the utility model discloses electronic equipment also should have corresponding technological effect. Namely the utility model discloses electronic equipment is through adopting this far field noise elimination subassembly 100, and the user can carry out the tuning according to the hobby of oneself, can adjust listening effect, can improve far field noise elimination effect again, effectively promotes the user and uses experience.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims

1. A far field muffler assembly, comprising:

the cavity body shell is internally provided with a cavity chamber;

the horn support is arranged in the cavity, the horn support divides the cavity into a first cavity and a second cavity, the horn support can move in the cavity to adjust the volume of the first cavity, and the cavity shell is provided with a first sound outlet hole communicated with the first cavity and a second sound outlet hole communicated with the second cavity;

the horn single body is arranged on the horn bracket;

the adjusting part, the adjusting part with horn bracket connects, at least a part of adjusting part stretches out cavity shell is in order to drive horn bracket activity.

2. The far field muffler assembly according to claim 1, wherein the horn bracket comprises:

the bracket body is of a sheet structure, the chamber is divided into the first cavity and the second cavity by the bracket body, the first side of the bracket body faces the first cavity, the second side of the bracket body faces the second cavity, and the horn unit is arranged on the bracket body;

the transmission plate is arranged on the second side of the support body and connected with the support body, the first end of the adjusting piece is connected with the transmission plate, and the second end of the adjusting piece extends out of the cavity shell.

3. The far-field noise elimination assembly according to claim 2, wherein the second sound outlet is a slide way provided on the cavity housing, the first end of the adjusting member is connected with the driving plate, and the second end of the adjusting member extends out of the slide way and is movable along the extending direction of the slide way, so that the horn support adjusts the volume of the first cavity.

4. The far-field muffler assembly according to claim 3, wherein the transmission plate is provided with a first through hole penetrating along a thickness direction of the transmission plate, the position of the first through hole corresponds to the position of the slide way, and the first end of the adjusting member is mounted in the first through hole through the slide way.

5. The far field muffler assembly according to claim 4, wherein the adjusting member is rotatable about its own axis within the first through hole, the transmission plate is provided with a second through hole arranged spaced apart from the first through hole, and the far field muffler assembly further comprises:

the tuning disc, the tuning disc with the first end of regulating part is connected, be equipped with a plurality of apart tone holes of arranging along its circumference on the tuning disc, the tuning disc with the regulating part rotates in step to adjust different tone holes with the second through-hole intercommunication.

6. The far field muffler assembly according to claim 2, wherein the chamber housing is provided with a third through hole communicating with the second chamber, and the first end of the adjusting member is connected to the driving plate through the third through hole.

7. The far field muffler assembly according to claim 6, wherein the first end of the adjustment member is provided with a gear, the transmission plate is provided with a rack engaged with the gear, the adjustment member is rotatable about its own axis to drive the gear, and the gear drives the rack to cause the horn bracket to adjust the volume of the first chamber.

8. The far field muffler assembly of claim 7, further comprising:

the tuning dish, the tuning dish rotationally locates around its axis the second intracavity, be equipped with a plurality of tone tuning holes of arranging along its circumference interval on the tuning dish, the tuning dish with the regulating part is connected and by the regulating part drive, in order to adjust the difference the tone tuning hole with the second goes out the sound hole intercommunication.

9. The far field muffler assembly according to claim 8, wherein the third through hole is an elongated hole, the adjuster is switchable between a first state in which the adjuster is connected to the drive plate and a second state in which the adjuster is connected to the tuning disc.

10. The far field noise cancellation assembly according to claim 9, wherein the tuning disc is circular, the outer periphery of the tuning disc being provided with serrations which engage the gear.

11. An electronic device comprising the far field noise cancellation assembly of any one of claims 1-10.