CN114430518A

CN114430518A - Acoustic valve and earphone

Info

Publication number: CN114430518A
Application number: CN202210338947.8A
Authority: CN
Inventors: 王传果
Original assignee: Honor Device Co Ltd
Current assignee: Beijing Honor Device Co Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-05-03

Abstract

The application discloses acoustics valve and earphone belongs to earphone technical field. The acoustic valve comprises a valve shell, an opening and closing part, a resetting part and an executing part, wherein the valve shell is provided with an accommodating cavity, a first sound hole and a second sound hole, and the resetting part is provided with a hollow area; the execution part is used for controlling the opening and closing part to move to the second position so as to open the hollow area, so that the first sound hole is communicated with the second sound hole; the reset portion is used for driving the opening and closing portion to move to the second position so as to close the hollow area, and therefore the first sound hole is disconnected from the second sound hole. The use mode of the earphone can be changed by changing the opening and closing state of the acoustic valve, and the acoustic valve and the earphone can enable a wearer to select to hear the loudspeaker and the external sound simultaneously according to needs, so that the blocking effect is reduced, or select to hear relatively less external sound, so that the sound of the loudspeaker is displayed more clearly.

Description

Acoustic valve and earphone

Technical Field

The application relates to the technical field of earphones, in particular to an acoustic valve and an earphone.

Background

At present, in order to improve the clarity of sound emitted by the earphone during wearing, the earphone is generally made to provide an acoustic seal for the ear of the wearer, that is, less ambient sound is transmitted into the ear canal of the wearer, so that the clarity of sound emitted from the earphone heard by the wearer is better and the hearing experience is better. However, the acoustic seal can cause an occlusion effect, causing the wearer's ear to feel pressure, which affects wearing comfort.

In order to reduce the influence of the blocking effect, a part of earphones are provided with a front leakage hole communicated with a front cavity of the earphones, a part of earphones are provided with a rear leakage hole communicated with a rear cavity of the earphones, a front cavity and a rear cavity of the earphones are provided with a front cavity communication hole and a rear cavity communication hole, and the purpose of the above arrangement is to reduce the effect of the earphones on the sealing of the auditory meatus so as to reduce the influence of the blocking effect. However, none of the above arrangements provides relatively better sound quality, and cannot be achieved when the wearer requires a clearer sound transmission.

Disclosure of Invention

The application provides an acoustic valve and an earphone, and the acoustic valve and the earphone can enable a wearer to select to hear the loudspeaker and the external sound at the same time according to needs, reduce the occlusion effect, or select to hear relatively less external sound, so that the sound of the loudspeaker is displayed more clearly. The technical scheme is as follows:

the present application provides in a first aspect an acoustic valve for use in an earphone, the acoustic valve comprising: a valve shell, an opening and closing part, a reset part and an execution part,

the valve shell is provided with a containing cavity and a first sound hole and a second sound hole which are communicated with the containing cavity;

the reset part comprises a first connecting body, a second connecting body and an elastic body, the first connecting body is connected with the second connecting body through the elastic body, a hollow area is formed between the first connecting body and the second connecting body, the hollow area is respectively communicated with the first sound hole and the second sound hole, the first connecting body is connected with the valve shell, and the second connecting body is connected with the opening part;

the execution part is used for controlling the opening and closing part to move from a first position to a second position;

the opening and closing part is covered on the hollow area at the first position, and the first sound hole is communicated with the second sound hole; the opening and closing part opens the hollow area at the second position, and the first sound hole is communicated with the second sound hole.

The utility model provides an acoustics valve is applied to the earphone, and it specifically can use in the acoustics hole of earphone, and the acoustics hole specifically can be around the chamber intercommunicating pore, preceding bleeder hole or back bleeder hole for the open and close state of control front and back chamber intercommunicating pore, preceding bleeder hole or back bleeder hole. Since the earphone is inserted into the ear canal, when the acoustic hole is closed, the sound emitted from the earphone is transmitted only to the inside of the ear canal, causing the cartilage wall of the ear canal to vibrate, the generated energy is transferred to the air in the ear canal, and the level of the pressure rise transmitted to the eardrum and finally to the cochlea is increased due to the ear canal being blocked by the earphone, so that the user feels the pressure increase in the ear. The two end openings of the acoustic hole are respectively a first vent and a second vent, when the acoustic valve is arranged in the acoustic hole, the first acoustic hole is communicated with the first vent, the second acoustic hole is communicated with the second vent, and when the first acoustic hole and the second acoustic hole in the acoustic valve are communicated, the two end openings of the acoustic hole are communicated and are in an open state; when the communication between the first sound hole and the second sound hole in the acoustic valve is blocked, the openings at both ends of the sound hole are also blocked from communicating by the acoustic valve, which is in a closed state. The acoustic valve includes an opening and closing portion and an actuator portion. The opening and closing part can be moved from the first position to the second position through the execution part, so that the front cavity communication hole, the front leakage hole or the rear leakage hole are opened, and the blocking effect of the earphone is reduced to a certain extent. When the portion that opens and shuts is moved the second position by the primary importance, the portion that opens and shuts drives the second connector and removes, thereby make the distance between first connector and the second connector increase, the elastomer takes place elastic deformation in order to hold power, when the portion that opens and shuts is not acted on in the execution portion, the elastomer drives the second connector and resets, thereby drive the portion that opens and shuts through the second connector and get back to the primary importance by the second position, so that around making, chamber intercommunicating pore, preceding earial hole or back earial hole switch into the closed condition, thereby isolated external sound. In conclusion, the application provides an acoustics valve can control the open-close state of the acoustics hole of the earphone, and therefore better wearing experience is provided according to the using requirements of users.

In some implementations, the open-close portion is a rigid plate-like structure.

In some implementations, the opening and closing portion and the executing portion are respectively located on two sides of the reset portion.

In some implementations, the first connector and the second connector are both ring structures, the first connector surrounds the outside of the second connector, and the first connector and the second connector are located on the same plane.

In some implementations, the elastic body is a bent strip structure, and one end of the elastic body is connected to the first connecting body, and the other end of the elastic body is connected to the second connecting body.

In some implementations, two opposite sides of the valve housing are a first side and a second side, respectively, one of the first side and the second side is provided with the first sound hole, the other one is provided with the second sound hole, the valve housing has an accommodating cavity, the accommodating cavity is located between the first side and the second side, and the opening and closing portion, the resetting portion and the executing portion are all installed in the accommodating cavity.

In some implementations, the first side of the valve housing is provided with a stop, the first connector being connected to the stop.

In some implementations, the valve housing includes a base and a limiting ring, a flange extends outward from one side of the base, the limiting ring is connected to the flange, and the limiting table is disposed in an inner ring area of the limiting ring.

In some implementations, the inner annular surface of the limiting table includes a slope surface, and the slope surface is gradually inclined from one side far away from the base to the other side toward the inner side of the accommodating cavity.

In some implementations, the executing portion includes a magnet and a coil, the coil is sleeved outside the magnet, the coil is connected to the second connector, and the coil drives the opening and closing portion to move from the first position to the second position through the second connector after being powered on.

In some implementations, the executing portion further includes a magnetizer, the magnetizer is connected to the magnet, and the coil is sleeved outside the magnet and the magnetizer.

In some implementations, the magnet has an inner cavity in communication with the first acoustic port, a first gap is formed between the coil and the magnet, a second gap is formed between the coil and the valve housing, the second gap is in communication with the hollowed-out region, the first gap is in communication with the second gap, and the first gap is in communication with the inner cavity when the coil is energized; when the coil is not energized, communication between the first gap and the lumen is broken.

In some implementations, the first connector is connected to a conductive terminal, the second connector is electrically connected to the first connector through the elastic body, and the coil is electrically connected to the second connector.

In some implementations, the actuating portion includes a magnet and a coil, the coil is sleeved outside the magnet, the opening and closing portion is made of a magnetic conductive material, the coil is electrified to magnetize the opening and closing portion, one end of the magnetized opening and closing portion, which faces the magnet, has the same polarity as one end of the magnet, which faces the opening and closing portion, and the opening and closing portion moves from the first position to the second position.

In some implementations, the first connector is connected to a conductive terminal, and the coil is electrically connected to the conductive terminal through the first connector.

A second aspect of the present application provides a headset comprising: an earphone housing, a speaker, and an acoustic valve as in any one of the first aspects;

the earphone shell is provided with a front cavity and a rear cavity, and the loudspeaker is arranged between the front cavity and the rear cavity;

the earpiece has an acoustic aperture comprising one or more of: the earphone comprises a front cavity, a rear cavity, a front cavity communication hole, a rear cavity communication hole and a rear discharge hole, wherein the front cavity communication hole is communicated with the rear cavity;

the acoustic valve is mounted in the acoustic port.

The earphone of the present application includes a speaker and an acoustic valve. The loudspeaker is used for playing sound, and the acoustic valve is used for controlling the communication state of the acoustic hole.

When the acoustic hole is a front cavity and a rear cavity communicating hole, the acoustic valve is used for controlling the communicating state of the front cavity and the rear cavity, when the acoustic valve is in an opening state, the front cavity is communicated with the rear cavity, a wearer can hear the sound emitted by the loudspeaker and can also hear the external sound, and the blocking effect of the earphone is reduced. When the acoustic valve is in a closed state, external sound is blocked, and the sound emitted by the loudspeaker heard by the wearer is clearer.

When the acoustic hole is the front drain hole, the acoustic valve is installed in the front drain hole and used for controlling the opening and closing state of the front drain hole. When the acoustic valve is opened, the front leakage hole is opened, so that the wearer can hear the sound emitted by the loudspeaker and can also hear the external sound, and the occlusion effect of the earphone is reduced. When the acoustic valve is closed, the front vent is closed and the sound emitted by the speaker heard by the wearer is clearer.

When the acoustic hole is a rear leakage hole, the acoustic valve is installed in the rear leakage hole and used for controlling the opening and closing state of the rear leakage hole. When the acoustic valve is opened, the back leakage hole is opened, the wearer can hear the sound emitted by the loudspeaker and can also hear the external sound, and the occlusion effect of the earphone is reduced. When the acoustic valve is closed, the rear vent is closed, and the sound emitted by the loudspeaker heard by the wearer is clearer.

Drawings

FIG. 1 is an exploded view of a first acoustic valve according to an embodiment of the present application;

FIG. 2 is a schematic diagram illustrating a first installation position of a first acoustic valve in an earphone according to an embodiment of the present application;

FIG. 3 is a schematic diagram illustrating a second installation position of a first acoustic valve in an earphone according to an embodiment of the present application;

FIG. 4 is a schematic diagram illustrating a third installation position of the first acoustic valve in the earphone according to the embodiment of the present application;

FIG. 5 is a schematic diagram illustrating a fourth installation position of a first acoustic valve in an earphone according to an embodiment of the present application;

fig. 6 is a schematic cross-sectional view of a first acoustic valve provided in an embodiment of the present application in a closed state;

fig. 7 is a schematic cross-sectional view of a first acoustic valve provided in an embodiment of the present application in an open state;

fig. 8 is a schematic structural diagram of a first acoustic valve provided in an embodiment of the present application at a first viewing angle;

fig. 9 is a schematic structural diagram of a first acoustic valve provided in an embodiment of the present application at a second viewing angle;

fig. 10 is a schematic structural diagram of a first acoustic valve provided in an embodiment of the present application at a third viewing angle;

fig. 11 is a schematic structural diagram of a first acoustic valve provided in an embodiment of the present application at a fourth viewing angle;

FIG. 12 is a schematic structural diagram of an elastic portion according to an embodiment of the present disclosure;

fig. 13 is a schematic structural view of an elastic portion provided in an embodiment of the present application in an open state;

fig. 14 is a schematic structural diagram of another view angle of the elastic portion in an open state according to the embodiment of the present application;

FIG. 15 is an exploded view of a second acoustic valve according to an embodiment of the present application;

fig. 16 is a schematic cross-sectional view of a second acoustic valve provided in an embodiment of the present application in a closed state;

FIG. 17 is a schematic cross-sectional view of a second acoustic valve in an open state according to an embodiment of the present application;

FIG. 18 is a schematic cross-sectional view of a third acoustic valve provided in accordance with an embodiment of the present application in a closed state;

fig. 19 is a schematic diagram of frequency response curves of earphones according to an embodiment of the present application at different aperture areas.

Wherein, the meanings represented by the reference numerals of the figures are respectively as follows:

100. an acoustic valve;

110. a valve housing; 111. a second sound hole; 112. a base; 113. a limiting ring; 114. a limiting table; 115. a slope surface; 116. flanging;

120. an opening and closing part;

130. a reset section; 131. a first connecting body; 132. a second connector; 133. an elastomer; 134. a hollow-out area; 135. a conductive sheet; 136. a conductive terminal;

140. an execution unit; 141. a magnet; 142. a coil; 143. a magnetizer;

200. an earphone;

210. an earphone shell; 211. a front cavity; 212. a rear cavity; 213. the front and rear cavity communicating holes; 214. a front vent hole; 215. a rear vent hole;

220. a loudspeaker.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

It should be understood that reference to "a plurality" in this application means two or more. In the description of the present application, "/" means "or" unless otherwise stated, for example, a/B may mean a or B; "and/or" herein is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, for the convenience of clearly describing the technical solutions of the present application, the terms "first", "second", and the like are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

Mechanism of occlusion effect: during phonation, bone conduction energy causes the mandible and soft tissue adjacent to the external auditory canal to vibrate. This in turn causes the ear canal cartilage wall to vibrate, the energy produced then being transferred to the air volume within the tube. When the ear canal is occluded, most of the energy is trapped, resulting in an increase in the sound pressure level transmitted to the tympanic membrane and ultimately to the cochlea.

The acoustic valve provided in the embodiments of the present application will be explained in detail below. In the embodiments of the present application, the electrical connection means that two electrical devices are connected by a conductor so that electrical signals can be transmitted between the two electrical devices. In the drawings of the present application, the leads with arrows are all directed to the surface of the device and the leads with dots are all directed to the device itself.

First embodiment

Fig. 1 is an exploded view of a component of an acoustic valve 100 provided in an embodiment of the present application. The acoustic valve 100 is applied to the earphone 200, which is particularly applicable to an acoustic hole of the earphone 200, fig. 2 to 5 show several different installation positions of the acoustic valve 100, the earphone 200 includes a front cavity 211 and a rear cavity 212, the acoustic hole of the earphone 200 is particularly one or more of a front and rear cavity communication hole 213, a front vent hole 214 or a rear vent hole 215, the front and rear cavity communication holes 213 are respectively communicated with the front cavity 211 and the rear cavity 212, the front and rear cavity communication holes 213 can be arranged in an inner structure of the valve housing 110 (as shown in fig. 2), can be arranged in a speaker 220 in the earphone 200 (as shown in fig. 3), and can be formed by a gap which is coplanar with the speaker 220 and is not provided with other structures and is arranged between the front cavity 211 and the rear cavity 212 (as shown in fig. 4). Front vent 214 is adapted to communicate front chamber 211 with the ambient environment, and rear vent 215 is adapted to communicate rear chamber 212 with the ambient environment.

The acoustic valve 100 is used to control the open/close state of the front and rear chamber communication holes 213, the front drain hole 214, or the rear drain hole 215 in which it is located. When the acoustic valve 100 is mounted to the front and rear chamber communication holes 213 of the earphone 200, it is used to control the open and close state of the front and rear chamber communication holes 213. When the acoustic valve 100 is mounted to the front vent hole 214 of the earphone 200, the opening and closing state of the front vent hole 214 is controlled. When the acoustic valve 100 is mounted to the rear vent 215 of the earphone 200, it is used to control the open/close state of the rear vent 215.

The acoustic valve 100 includes a valve housing 110, an opening and closing portion 120, a returning portion 130, and an actuating portion 140, the valve housing 110 having a first sound hole and a second sound hole 111, the valve housing 110 having a receiving cavity communicating with the first sound hole and the second sound hole 111, respectively, the opening and closing portion 120, the actuating portion 140, and the returning portion 130 all being installed in the receiving cavity. The reset unit 130, the opening/closing unit 120, and the actuator 140 are installed between the first sound hole and the second sound hole 111, and the opening/closing unit 120 is used to control the communication state between the first sound hole and the second sound hole 111. When the first sound hole communicates with the second sound hole 111, the acoustic valve 100 is in an open state; when the communication of the first sound hole with the second sound hole 111 is cut off, the acoustic valve 100 is in a closed state.

As shown in fig. 1, 6 and 12, the reset portion 130 includes a first connecting body 131, a second connecting body 132 and an elastic body 133, the first connecting body 131 and the second connecting body 132 are connected by the elastic body 133, a hollow area 134 is formed between the first connecting body 131 and the second connecting body 132, a channel between the first sound hole and the second sound hole 111 passes through the hollow area 134, when the hollow area 134 is in an open state, the first sound hole and the second sound hole 111 are communicated, and when the hollow area 134 is covered by the opening and closing portion 120, the first sound hole and the second sound hole 111 are blocked at two sides of the hollow area and are in a non-communicated state. The first connecting body 131 is connected to the valve housing 110, and the second connecting body 132 is connected to the opening/closing portion 120. The opening and closing part 120 is movable between a first position and a second position in the valve housing 110, as shown in fig. 6, when the opening and closing part 120 is located at the first position, the opening and closing part 120 covers the hollow area 134, thereby disconnecting the communication between the first sound hole and the second sound hole 111. As shown in fig. 7, when the opening and closing portion 120 is located at the second position, the opening and closing portion 120 moves away from the hollow area 134, so that an airflow channel passing through the hollow area 134 is formed between the first sound hole and the second sound hole 111, that is, the first sound hole and the second sound hole 111 are communicated through the hollow area 134. One possible flow direction of the air flow is shown by the arrows in fig. 7, and the air flow enters the receiving cavity of the valve housing 110 after passing through the second sound hole 111, passes through the hollow-out area 134, and finally exits the valve housing 110 through the first sound hole, so that the two-side environment of the valve housing 110 can be in air circulation. Of course, the air flow direction may also be opposite to the direction shown by the arrow in fig. 7, i.e. entering the valve housing 110 from the first sound hole, passing through the hollow area 134, and finally exiting the valve housing 110 from the second sound hole 111.

The executing part 140 is used for controlling the opening and closing part 120 to move from the first position to the second position; that is, the actuator 140 is at least used to control the acoustic valve 100 to switch from the closed state to the open state.

When the opening and closing portion 120 moves from the first position to the second position, the opening and closing portion 120 drives the second connecting body 132 to move, and the elastic body 133 is elastically deformed, and when the executing portion 140 does not act on the opening and closing portion 120, the elastic body 133 drives the second connecting body 132 to reset, so that the opening and closing portion 120 is driven to move from the second position to the first position, and the acoustic valve 100 is switched from the open state to the closed state.

In this embodiment, the reset portion 130 acts as a limit for the opening/closing portion 120, so that the movement range of the opening/closing portion 120 relative to the valve housing 110 is limited by the elastic deformation amount of the elastic body 133.

The valve housing 110 may have various shapes, such as a regular shape, e.g., a cylindrical shape, a prismatic shape, a truncated cone shape, or other irregular structural shapes.

Illustratively, as shown in fig. 8-11, in one possible embodiment, the valve housing 110 has a basin shape with a cylindrical receiving cavity.

The first and second sound holes 111 may be located at both ends of the same side of the valve housing 110, or the first and second sound holes 111 may be located at different sides of the valve housing 110.

In one possible embodiment, the first and second sound holes 111 are located at opposite sides of the valve housing 110, respectively, and for convenience of reference, one pair of opposite sides of the valve housing 110 are referred to as a first side and a second side, respectively, with the receiving cavity located therebetween, one of the first and second sides being provided with the first sound hole and the other with the second sound hole 111. When the first side is provided with the first sound hole, the second side is provided with the second sound hole 111; when the first side is provided with the second sound hole 111, the first side is provided with the first sound hole. For convenience of description, the following description will be given by taking the case where the first sound hole is disposed on the first side and the second sound hole 111 is disposed on the second side.

In some implementations, the opening and closing part 120 and the executing part 140 are respectively located at two sides of the resetting part 130. Alternatively, the opening/closing portion 120 is disposed on a side close to the first sound hole, and the actuator 140 is disposed on a side close to the second sound hole 111.

Optionally, the aperture of the first sound hole is larger than the aperture of the second sound hole 111, so that the actuator 140, the reset portion 130 and the opening and closing portion 120 can be sequentially installed in the accommodating cavity from the first sound hole on the first side of the valve housing 110 due to the relatively large aperture of the first sound hole, and the area for supporting and fixing the actuator 140 on the second side is large due to the small aperture of the second sound hole 111, thereby facilitating installation. Alternatively, when valve housing 110 is formed in a basin shape, the receiving cavity may be formed with an opening on one side of valve housing 110, the opening acting as the first sound hole.

Alternatively, the first sound hole and the second sound hole 111 are both circular in cross section. In fig. 8 and 9, the opening/closing portion 120 has a circular plate-like structure. In fig. 10 and 11, the second sound hole 111 is located in the middle area of the second side, but the second sound hole 111 may be located in the edge area of the second side in other arrangements. The number of the second sound holes 111 may be one or more.

In some implementation manners, the opening and closing portion 120 is a rigid plate-shaped structure, and is arranged in such a way that after the elastic body drives the opening and closing portion 120 to reset, because the rigidity of the opening and closing portion 120 is high, the opening and closing portion 120 cannot deform in the moving process, so that the opening and closing portion 120 can relatively more accurately move to one side of the hollow area 134 to cover the hollow area 134, and the closing effect on the hollow area 134 after resetting is good. And because the portion of opening and shutting 120 can not take place deformation, consequently make the use angle of acoustic valve 100 unrestricted, no matter transversely put, erect and put or incline to put and can not influence the effect of closing of portion of opening and shutting 120 to fretwork district 134.

As shown in fig. 6 and 7, in some implementations, the actuating portion 140 includes a magnet 141 and a coil 142, the coil 142 is disposed outside the magnet 141, the coil 142 is connected to the second connecting portion 132, the coil 142 is powered to drive the second connecting portion 132 to move, and since the second connecting portion 132 is fixed to the open-close portion 120, the coil 142 drives the open-close portion 120 to move, so that the open-close portion 120 moves from the first position to the second position. After the coil 142 is energized with direct current, the coil 142 is moved in the direction close to the first sound hole along the axis thereof under the action of the lorentz force in the magnetic field generated by the magnet 141 by controlling the current direction, so as to drive the second connecting body 132 and the opening and closing portion 120 to move in the direction of the outer side of the valve housing 110, so that the opening and closing portion 120 moves from the first position to the second position, and the hollow area 134 is opened. After the coil 142 is powered off, the lorentz force acting on the coil 142 is reduced to disappear, the driving force of the coil 142 on the second connecting body 132 and the opening and closing portion 120 is reduced to disappear, the second connecting body 132 is driven by the elastic force of the elastic body 133 to move in the opposite direction, so that the coil 142 and the opening and closing portion 120 are driven to move, and the opening and closing portion 120 is driven to move from the second position to the first position to close the hollow area 134.

With reference to fig. 6 and fig. 7, in some implementations, the executing portion 140 further includes a magnetic conductor 143, the magnetic conductor 143 is connected to the magnet 141, and the coil 142 is sleeved outside the magnet 141 and the magnetic conductor 143. Because the magnetizer 143 is arranged, the magnetizer 143 generates a magnetic beam effect to constrain the magnetic induction lines in the area close to the coil 142, so that the redistribution of the space magnetic field is caused, the magnetic induction lines near the coil 142 are relatively denser, the acting force of the magnetic induction lines on the coil 142 is enhanced, and the coil 142 is driven to move conveniently.

In some implementations, the magnet 141 has an interior cavity that communicates with the first acoustic port, a first gap is formed between the coil 142 and the magnet 141, a second gap is formed between the coil 142 and the valve housing 110, the second gap communicates with the hollow-out region 134, the first gap communicates with the second gap, and the first gap communicates with the interior cavity when the coil 142 is energized; when the coil 142 is not energized, communication between the first gap and the lumen is broken. As shown in fig. 6, when the coil 142 is not energized, the top of the coil 142 is connected to the second connecting body 132, and the second connecting body 132 is connected to the opening/closing portion 120, that is, the opening/closing portion 120 and the second connecting body 132 form a cover-shaped structure on the top of the coil 142, and the cover covers the opening on the top of the inner cavity of the magnet 141, thereby cutting off the communication between the inner cavity of the magnet 141 and the first gap. As shown in fig. 7, after the coil 142 is energized and moved upward, the open-close portion 120 is moved away from the top opening of the inner cavity of the magnet 141, so that the inner cavity of the magnet 141 communicates with the first gap.

When the airflow enters from the first sound hole and flows out from the second sound hole 111, the airflow direction is as shown in fig. 7, the airflow enters the inner cavity of the magnet 141 through the first sound hole, enters the first gap through the inner cavity of the magnet 141, enters the second gap through the first gap, and the airflow in the second gap flows to the second sound hole 111 through the hollow area 134 and finally flows out from the second sound hole 111. In this way, after the coil 142 is energized, the acoustic valve 100 allows gas communication between the environment outside the first sound hole and the environment outside the second sound hole 111.

It should be noted that, when the actuator 140 includes the magnetic conductor 143 and the magnet 141 has an inner cavity, the magnetic conductor 143 has a hollow chamber communicating with the inner cavity. When the acoustic valve 100 is opened, the hollow chamber communicates with the first gap, and when the acoustic valve 100 is closed, communication between the first gap and the hollow chamber is cut off.

In other implementations, a second gap is formed between the coil 142 and the valve housing 110, and the first acoustic hole communicates with the second gap, and the first acoustic hole communicates with the hollowed-out area 134 through the second gap. In this arrangement, the magnet 141 does not need to be provided with an internal cavity.

In some implementations, the coil 142 may be connected with a wire that extends out of the valve housing 110 and then connects to a control module, thereby controlling the on/off state of the coil 142 via the control module. The control module may be a control module in a headset to which the acoustic valve 100 is applied.

Alternatively, in another implementation, the first connector 131 is connected to the conductive terminal 136, the second connector 132 is electrically connected to the first connector 131 through the elastic body 133, and the coil 142 is electrically connected to the second connector 132. That is, the first connection body 131, the second connection body 132, and the elastic body 133 are all made of a conductive material. So set up, reset portion 130 plays support and reset effect to opening and shutting portion 120 on the one hand, and on the other hand plays the electrically conductive effect to coil 142. The coil 142 and the second connecting body 132 may be connected by welding.

As shown in fig. 8-11, the conductive terminals 136 extend outside the valve housing 110 to electrically connect with the control module. In one possible embodiment, relief holes are provided in the valve housing 110 for the conductive terminals 136 to extend through.

As shown in fig. 12, in an alternative arrangement, the first connecting body 131 is connected with a conductive sheet 135, and one end of the conductive sheet 135 is provided with a conductive terminal 136. The conductive tab 135 extends outside the valve housing 110 such that the conductive terminal 136 is located outside the valve housing 110. In one embodiment, the conductive terminals 136 are solder joints for soldering to communication lines of the control module. The conductive sheet 135 may include a conductive inner core having an insulating coating disposed thereon, and the conductive terminals 136 may be formed in areas of the conductive sheet 135 not having the insulating coating disposed thereon. In fig. 12, two conductive terminals 136 are spaced apart from each other on the conductive sheet 135. In an alternative embodiment, as shown in fig. 13, the conductive terminals 136 protrude from the conductive sheet 135 at the sides thereof.

In some implementations, the first connecting body 131 and the second connecting body 132 are both annular structures, the first connecting body 131 surrounds the second connecting body 132, and the first connecting body 131 and the second connecting body 132 are located on the same plane. Preferably, the outer contour shape of the first connection body 131 is the same as the sectional shape of the receiving cavity. Illustratively, the receiving cavity is a cylindrical cavity with a circular cross section, and the outer contour of the first connecting body 131 is circular. As shown in fig. 12, the first connection body 131 has a circular ring shape. The shape of the first connection body 131 may be the same as or different from that of the second connection body 132. In fig. 12, the first connection body 131 and the second connection body 132 are both circular rings, the second connection body 132 and the first connection body 131 are coaxially arranged, and the inner diameter of the first connection body 131 is larger than the outer diameter of the second connection body 132. Between the first connecting body 131 and the second connecting body 132, the area except the elastic body 133 is the hollow area 134.

The elastic body 133 may be a spring, a spring plate, an elastic band, or other elastic structures. It should be noted that, when the coil 142 is directly connected to the control module through a wire, the elastic body 133 may be made of a non-conductive elastic material, such as rubber, and when the coil 142 is connected to the control module through the conductive terminal 136 connected to the first connecting body 131, the elastic body 133 is made of a conductive material, such as metal.

As shown in fig. 12, in some implementations, the elastic body 133 has a bent strip structure, and one end of the elastic body 133 is connected to the first connection body 131 and the other end is connected to the second connection body 132. With this arrangement, the elastic body 133 can be elastically deformed to some extent while maintaining relatively strong rigidity. For example, the elastic body 133 may be made of a thin metal sheet, and after the opening/closing portion 120 moves, the second elastic body 133 moves along with the opening/closing portion 120 in the axial direction, as shown in fig. 13 and 14, the elastic body 133 is elastically deformed to a certain extent, so as to ensure that the first connecting body 131 and the second connecting body 132 can be maintained in a non-coplanar state to leak out of the hollow area 134.

In some implementations, the first side of the valve housing 110 is provided with a limit stop 114, and the first connection body 131 is connected to the limit stop 114. The limiting table 114 extends inward from the inner wall of the receiving cavity of the valve housing 110, and is used for supporting the first connecting body 131 and providing a larger installation space for installing the first connecting body 131 in the valve housing 110. The side surface of the limiting table 114 for supporting the first connecting body 131 is a supporting surface, which is opposite to the first sound hole, that is, the elastic part can be extended into the valve housing 110 from the first sound hole, and the first connecting body 131 of the elastic part is limited at the supporting surface after moving to the inside of the valve housing 110.

When the accommodating cavity is a cylindrical cavity, the opening and closing portion 120 is installed at a position close to the first sound hole, and after the opening and closing portion 120 extends out of the valve housing 110, the opening and closing portion 120 is moved away from the hollow area 134 and the first sound hole, so that the hollow area 134 is communicated with the first sound hole.

Alternatively, as shown in fig. 6 and 7, a slope 115 is provided on an inner wall of one side edge of the valve housing 110 on which the first sound hole is provided, and the slope 115 is gradually inclined from one side close to the outer side wall of the valve housing 110 to the other side toward the axial direction close to the accommodation chamber. That is, when the open/close portion 120 moves to the slope surface 115, the open/close portion 120 continues to move outward, and a gap is formed between the outer peripheral side of the open/close portion 120 and the slope surface 115, and the first sound hole and the hollow-out region 134 are communicated through the gap. With this arrangement, the acoustic valve 100 can be switched to the open state without moving the opening/closing portion 120 to the outside of the valve housing 110.

In some implementations, the valve housing 110 includes a base 112 and a limit ring 113, a flange 116 extends outward from one side of the base 112, the limit ring 113 is connected to the flange 116, and a limit table 114 is disposed in an inner ring area of the limit ring 113. The base 112 is provided with a flange 116 to increase the contact area with the retainer ring 113, so as to facilitate the connection and fixation of the retainer ring 113 and the base 112. The valve housing 110 is divided into the base 112 and the retainer ring 113, so that the installation of the actuating portion 140, the restoring portion 130, and the opening and closing portion 120 is facilitated, so that the opening into the valve housing 110 is not affected by the size of the retainer ring 113 when the actuating portion 140 is installed inside the valve housing 110. That is, in the assembling process, the magnet 141 and the magnetizer 143 are first installed in the base 112, then the limit ring 113 is connected with the base 112, and then the connected coil 142, the reset portion 130 and the opening and closing portion 120 are installed on the limit ring 113, and in the installing process, the coil 142 passes through the limit table 114 of the limit ring 113 and is sleeved outside the magnet 141.

When the limiting table 114 is provided, the slope surface 115 of the valve housing 110 is provided on the limiting table 114, and the slope surface 115 is gradually inclined from one side away from the base 112 to the other side toward the inner side of the accommodating cavity.

In the present embodiment, the magnet 141 may be a permanent magnet.

Second embodiment

As shown in fig. 15, the present embodiment provides another acoustic valve 100, and the position of the acoustic valve 100 in the earphone 200 provided by the present embodiment is the same as the position of the acoustic valve 100 in the earphone 200 provided by the first embodiment, which is not described herein again.

The present embodiment provides an acoustic valve 100 including: the valve housing 110, the actuating portion 140, the opening and closing portion 120 and the restoring portion 130, the structures of the valve housing 110, the opening and closing portion 120 and the restoring portion 130 in this embodiment are the same as those of the valve housing 110, the opening and closing portion 120 and the restoring portion 130 in the first embodiment, and are not described herein again.

In this embodiment, the actuating portion 140 includes a magnet 141 and a coil 142, the coil 142 is sleeved outside the magnet 141, the opening/closing portion 120 is made of a magnetic conductive material, the coil 142 magnetizes the opening/closing portion 120 after being energized, and the magnetized opening/closing portion 120 has a polarity opposite to that of the magnet 141 by controlling a current direction of a direct current flowing through the coil 142, that is, a life, a magnetic property of an end of the magnetized opening/closing portion 120 facing the magnet 141 is the same as a magnetic property of an end of the magnet 141 facing the opening/closing portion 120, so that the magnet 141 and the opening/closing portion 120 repel each other, and the opening/closing portion 120 moves in a direction away from the magnet 141, so that the opening/closing portion moves from the first position to the second position. As shown in fig. 16 and 17, the first sound hole, the open/close portion 120, the magnet 141, and the second sound hole 111 are provided at an interval along the straight line W, and a point located on the side of the open/close portion 120 away from the magnet 141 on the straight line is X1, and a point located on the side of the magnet 141 away from the open/close portion 120 on the straight line is X2, and after the open/close portion 120 is magnetized, the polarities of both sides of the open/close portion 120 in the X1 to X2 direction are opposite to the polarities of both sides of the magnet 141 in the X1 to X2 direction.

For example, in the directions shown in fig. 16 and 17, the open/close portion 120 is located above the magnet 141, and if the upper side of the magnet 141 is an N pole and the lower side is an S pole, the magnetized open/close portion 120 has an S pole on the upper side and an N pole on the lower side, and has a polarity opposite to that of the magnet 141. Since the magnetic poles of the side of the opening/closing portion 120 close to the magnet 141 are the same as the magnetic poles of the side of the magnet 141 close to the opening/closing portion 120, the opening/closing portion 120 moves in the direction away from the magnet 141, as shown in fig. 16, the opening/closing portion 120 drives the second connecting body 132 to move upward, the elastic body 133 is stretched, the hollow area 134 is opened, the first sound hole is communicated with the second sound hole 111, and the acoustic valve 100 is switched to the open state. The direction of the airflow is shown by the arrows in fig. 17. One possible flow direction of the air flow is shown by the arrows in fig. 17, and the air flow enters the receiving cavity of the valve housing 110 after passing through the second sound hole 111, passes through the hollow-out area 134, and finally exits the valve housing 110 through the first sound hole, so that the two-side environment of the valve housing 110 can be in air circulation. Of course, the air flow direction may also be opposite to the direction shown by the arrow in fig. 17, i.e. entering the valve housing 110 from the first sound hole, passing through the hollow area 134, and finally exiting the valve housing 110 from the second sound hole 111.

In some implementations, the coil 142 may be connected with a wire that passes through the valve housing 110 and then connects with the control module, thereby controlling the on/off state of the coil 142 by the control module.

Alternatively, as shown in fig. 18, in another implementation, the conductive terminal 136 is connected to the first connector 131, and the coil 142 is electrically connected to the first connector 131. The conductive terminals 136 extend outside the valve housing 110 for electrical connection with the control module. In one possible embodiment, relief holes are provided in the valve housing 110 for the conductive terminals 136 to extend through. So set up, reset portion 130 plays support and reset effect to opening and shutting portion 120 on the one hand, and on the other hand plays the electrically conductive effect to coil 142.

As shown in fig. 18, in order to facilitate the connection of the first connecting body 131 with the coil 142, the inner ring diameter of the first connecting body 131 is smaller than the inner ring diameter of the stopping block 114, i.e., a partial region of the first connecting body 131 is extended to a position opposite to the inner ring region of the stopping block 114 to be exposed into the receiving cavity for connection with the coil 142.

In the present embodiment, a permanent magnet may be used as the magnet 141.

Third embodiment

The present embodiment provides an earphone 200 comprising an earphone housing 210, a speaker 220 and the acoustic valve 100 of any of the above embodiments.

The position of the acoustic valve 100 within the earpiece 200 is explained in detail below from five different implementations.

A first possible implementation:

the earphone case 210 has a front cavity 211 and a rear cavity 212, the speaker 220 is installed between the front cavity 211 and the rear cavity 212, a front and rear cavity communication hole 213 is provided between the front cavity 211 and the rear cavity 212, in fig. 2, the earphone case 210 is provided with a partition body protruding toward the inner cavity, the front and rear cavity communication hole 213 is provided in the partition body, the front and rear cavity communication hole 213 is respectively communicated with the front cavity 211 and the rear cavity 212, and the acoustic valve 100 is provided in the front and rear cavity communication hole 213. In fig. 3, the front-rear chamber communication hole 213 is provided in the speaker 220, the front-rear chamber communication hole 213 communicates with the front chamber 211 and the rear chamber 212, respectively, and the acoustic valve 100 is provided in the front-rear chamber communication hole 213. In fig. 4, the acoustic valve 100 is disposed side by side with the speaker 220, the acoustic valve 100 and the speaker 220 are partitioned between the front chamber 211 and the rear chamber 212, and the front and rear chamber communication holes 213 are formed at the mounting position of the acoustic valve 100.

The earpiece 200 of the present application includes a speaker 220 and the acoustic valve 100. The speaker 220 is used for playing sound, the acoustic valve 100 is used for controlling the communication state of the front cavity 211 and the rear cavity 212, when the acoustic valve 100 is in an open state, the front cavity 211 is communicated with the rear cavity 212, a wearer can hear the sound emitted by the speaker 220 and can hear external sound, and the occlusion effect of the earphone 200 is reduced. When the acoustic valve 100 is in the closed position, the external sound is blocked and the sound emitted from the speaker 220 heard by the wearer is more clear.

Second possible implementation

The earphone case 210 has a front cavity 211 and a rear cavity 212, and the speaker 220 is installed between the front cavity 211 and the rear cavity 212; the earphone case 210 is provided with a front vent hole 214 communicating the front cavity 211 with the external environment, and the acoustic valve 100 is mounted to the front vent hole 214.

When only the front vent hole 214 is provided in the earphone 200, the acoustic valve 100 is mounted to the front vent hole 214, and the acoustic valve 100 is used to control the open/close state of the front vent hole 214. When the acoustic valve 100 is opened, the front vent hole 214 is opened, and the wearer can hear both the sound emitted from the speaker 220 and the external sound, and the occlusion effect of the earphone 200 is reduced. When the acoustic valve 100 is closed, the front vent hole 214 is closed and the sound emitted from the speaker 220 heard by the wearer is more clear.

When the earphone case 210 is provided with a plurality of front vent holes 214, the acoustic valve 100 may be installed in all the front vent holes 214, or the acoustic valve 100 may be installed in only one or some of the front vent holes 214. When the earphone shell 210 includes a plurality of front vents 214 and a plurality of acoustic valves 100 are installed, the total conductive area of all the front vents 214 can be changed by controlling the on/off state of one or more of the acoustic valves 100, and the adjustment accuracy can be increased, so that the wearer can obtain more excellent hearing experience.

Third possible implementation

The earphone case 210 has a front cavity 211 and a rear cavity 212, and the speaker 220 is installed between the front cavity 211 and the rear cavity 212; the earphone case 210 is provided with a back vent hole 215 communicating the back cavity 212 with the external environment, and the acoustic valve 100 is installed at the back vent hole 215.

When only the rear vent hole 215 is provided in the earphone 200, the acoustic valve 100 is mounted in the rear vent hole 215, and the acoustic valve 100 is used to control the open and close state of the rear vent hole 215. When the acoustic valve 100 is opened, the rear vent hole 215 is opened, and the wearer can hear both the sound emitted from the speaker 220 and the external sound, and the occlusion effect of the earphone 200 is reduced. When the acoustic valve 100 is closed, the rear vent 215 is closed and the sound emitted from the speaker 220 heard by the wearer is more clear.

When the earphone case 210 is provided with a plurality of back vent holes 215, the acoustic valve 100 may be installed in all the back vent holes 215, respectively, or the acoustic valve 100 may be installed in only one or several of the back vent holes 215. When the earphone shell 210 includes a plurality of back vent holes 215 and a plurality of acoustic valves 100 are installed, the total conduction area of all back vent holes 215 can be changed by controlling the on/off state of one or more acoustic valves 100, and the adjustment accuracy can be increased, so that the wearer can obtain more excellent hearing experience.

Fourth possible implementation

As shown in fig. 5, the earphone housing 210 has a front cavity 211 and a rear cavity 212, and the speaker 220 is installed between the front cavity 211 and the rear cavity 212; the earphone case 210 is provided with a front vent hole 214 communicating the front cavity 211 with the external environment, and the acoustic valve 100 is installed at the front vent hole 214; also, the earphone case 210 is provided with a rear vent hole 215 communicating the rear cavity 212 with the external environment, and the acoustic valve 100 is installed at the rear vent hole 215.

When the earphone 200 is provided with both the front vent hole 214 and the rear vent hole 215, the acoustic valve 100 is installed in both the front vent hole 214 and the rear vent hole 215, and when the acoustic valve 100 of both the front vent hole 214 and the rear vent hole 215 is closed, the sound emitted from the speaker 220 heard by the wearer is clearer. When the acoustic valve 100 installed at least one of the front vent hole 214 and the rear vent hole 215 is opened, the wearer can hear both the sound emitted from the speaker 220 and the external sound, and the occlusion effect of the earphone 200 is reduced.

When earphone shell 210 is provided with a plurality of front vents 214 or a plurality of back vents 215, acoustic valve 100 may be installed in all of front vents 214 and back vents 215, respectively, or acoustic valve 100 may be installed in only one or more of all of front vents 214 and back vents 215.

Fifth possible implementation

The earphone case 210 has a front cavity 211 and a rear cavity 212, the speaker 220 is installed between the front cavity 211 and the rear cavity 212, a front and rear cavity communication hole 213 is provided between the front cavity 211 and the rear cavity 212, the earphone case 210 is provided with a front release hole 214 communicating the front cavity 211 with the external environment, and a rear release hole 215 communicating the rear cavity 212 with the external environment, and the acoustic valve 100 is installed in at least one of the front and rear cavity communication hole 213, the front release hole 214, and the rear release hole 215.

In a possible embodiment, the earphone 200 further includes a control module, the control module is in signal connection with the actuator 140 in the acoustic valve 100, specifically, the control module may be connected through a communication line, and may also be connected through wireless communication, and the control module is configured to control the on-off state of the actuator 140. When the actuator 140 includes the coil 142, the control module is used to control the power-on and power-off states of the actuator 140. When the control module controls the actuator 140 to be powered on, i.e., to control the acoustic valve 100 to open, and when the control module controls the actuator 140 to be powered off, i.e., to control the acoustic valve 100 to close.

In a possible embodiment, the housing of the earphone 200 is provided with a switch, which is electrically connected to the control module, which controls the acoustic valve 100 to open after the switch is closed, and controls the acoustic valve 100 to close after the switch is opened.

In a possible implementation, the headset 200 further includes a signal transmission module, and the control module is in signal connection with the terminal device through the signal transmission module. A command may be transmitted to the control module by the terminal device to cause the control module to open or close the acoustic valve 100.

Fig. 19 is a schematic diagram of frequency response curves of earphones according to an embodiment of the present invention at different opening areas, where the abscissa is frequency and the ordinate is frequency response, and the opening refers to the total opening area of all the acoustic holes in the earphones in an open state, and it can be seen from fig. 19 that, at a lower frequency, the larger the opening area is, the lower the frequency response is. In order to improve the situation, optionally, the earphone 200 includes a microphone, and the earphone 200 further includes a sound effect compensation module, and when the acoustic valve 100 is in the closed state, the sound effect compensation module obtains standard signal data according to a signal collected by the microphone and an audio signal played by the speaker 220, and obtains a standard frequency response curve. When the acoustic valve 100 is in the open state, the sound effect compensation module obtains the monitoring signal data of the current wearing state of the wearer of the earphone 200 according to the signal collected by the current microphone and the audio signal played by the speaker 220, converts the monitoring signal data to obtain a current frequency response curve, calculates error data between the monitoring signal data of the current wearing state and standard signal data, obtains a compensation curve of the standard frequency response curve according to the error data, and performs sound effect compensation on the earphone 200 through the compensation curve.

In one possible embodiment, the sound compensation module is activated to effect compensation on the earpiece 200 while the acoustic valve 100 is open, and the sound compensation module is deactivated while the acoustic valve 100 is closed.

Alternatively, in another possible embodiment, when the control module receives a command instructing to open the acoustic valve 100, the sound effect compensation module is activated first, and then the acoustic valve 100 is opened; when the control module receives an instruction to close the acoustic valve 100, the acoustic valve 100 is closed first, and then the acoustics compensation module is closed.

Alternatively, in yet another possible embodiment, the prominence compensation module is always in the on state.

In an optional embodiment, the earphone 200 further includes an ambient sound enhancement module, the ambient sound enhancement module is connected to the control module, the control module is configured to control the on/off of the ambient sound enhancement module, and the ambient sound enhancement module is configured to convert sound from the surrounding environment of the earphone 200 into an audio signal and play the audio signal through a speaker.

The environmental sound enhancement module can be opened and closed simultaneously with the acoustic valve 100, and the control module opens the environmental sound enhancement module while controlling the opening of the acoustic valve 100, so that a user can hear clearer environmental sound while reducing the ear pressure; the control module turns off the ambient sound enhancement module while controlling the acoustic valve 100 to close so that the user hears less ambient sound to focus on the content played within the earpiece 200. Illustratively, the headset 200 has a mode switching function, and the user can switch the mode through a switch on the headset 200 or a key (physical key or virtual key) on the mobile terminal in signal connection with the headset 200. The earphone 200 may have a noise reduction mode and a transparent mode, with the control module controlling the acoustic valve 100 to remain closed and the ambient sound enhancement module to remain closed while the earphone 200 is in the noise reduction mode; when the earphone 200 is switched to the transparent mode, the control module controls the acoustic valve 100 to open, and the ambient sound enhancement module is activated, so that the user hears more ambient sound and the occlusion effect is reduced. When the earphone 200 includes the sound effect compensation module, the sound effect compensation module maintains a closed state in a noise reduction mode; in the transparent mode, the sound effect compensation module is activated.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. An acoustic valve, comprising: a valve shell, an opening and closing part, a reset part and an execution part,

the opening and closing part covers the hollow area at the first position, and the communication between the first sound hole and the second sound hole is broken; the opening and closing part opens the hollow area at the second position, and the first sound hole is communicated with the second sound hole.

2. The acoustic valve of claim 1, wherein the open-close portion is a rigid plate-like structure.

3. The acoustic valve of claim 1, wherein the open-close portion and the actuation portion are located on opposite sides of the reset portion.

4. The acoustic valve of claim 1, wherein the first connecting body and the second connecting body are both annular structures, the first connecting body surrounds the second connecting body, and the first connecting body and the second connecting body are located on the same plane.

5. The acoustic valve of claim 4, wherein the resilient body is a bent strip structure having one end connected to the first connector and the other end connected to the second connector.

6. The acoustic valve of claim 1, wherein the opposite sides of the valve housing are a first side and a second side, respectively, one of the first side and the second side is provided with the first sound hole, the other is provided with the second sound hole, the valve housing has a receiving cavity between the first side and the second side, and the opening and closing portion, the restoring portion, and the actuating portion are mounted in the receiving cavity.

7. The acoustic valve of claim 6, wherein a first side of the valve housing is provided with a stop, the first connector being connected to the stop.

8. The acoustic valve of claim 7, wherein the valve housing comprises a base and a retainer ring, wherein a flange extends outwardly from one side of the base, the retainer ring is connected to the flange, and the retainer table is disposed in an inner ring area of the retainer ring.

9. The acoustic valve of claim 8, wherein the inner annular surface of the stop includes a ramp surface that slopes gradually from one side away from the base to the other side toward the interior of the receiving cavity.

10. The acoustic valve of any one of claims 1 to 9, wherein the actuator comprises a magnet and a coil, the coil is disposed outside the magnet, the coil is connected to the second connector, and the coil drives the opening/closing portion to move from the first position to the second position via the second connector after being energized.

11. The acoustic valve of claim 10, wherein the actuator further comprises a magnetic conductor coupled to the magnet, the coil being disposed outside the magnet and the magnetic conductor.

12. The acoustic valve of claim 10, wherein the magnet has an interior cavity, the interior cavity communicating with the first acoustic port, the coil and the magnet forming a first gap therebetween, the coil and the valve housing forming a second gap therebetween, the second gap communicating with the hollowed out region, the first gap communicating with the second gap, the first gap communicating with the interior cavity when the coil is energized; when the coil is not energized, communication between the first gap and the lumen is broken.

13. The acoustic valve of claim 10, wherein an electrically conductive terminal is connected to the first connector, the coil being electrically connected to the electrically conductive terminal through the first connector.

14. The acoustic valve according to any one of claims 1 to 7, wherein the actuator includes a magnet and a coil, the coil is disposed outside the magnet, the shutter is made of a magnetic material, the coil is energized to magnetize the shutter, an end of the magnetized shutter facing the magnet has the same polarity as an end of the magnet facing the shutter, and the shutter moves from the first position to the second position.

15. The acoustic valve of claim 14, wherein the first connector has an electrically conductive terminal attached thereto, the second connector is electrically connected to the first connector through the elastomer, and the coil is electrically connected to the second connector.

16. An earphone, comprising: an earphone housing, a speaker, and an acoustic valve of any of claims 1-15;

the earpiece has an acoustic aperture that includes one or more of: the earphone shell comprises a front cavity, a rear cavity, a front cavity communication hole, a front drainage hole and a rear drainage hole, wherein the front cavity communication hole is communicated with the front cavity and the rear cavity, the front drainage hole is arranged on the earphone shell and is used for communicating the front cavity with the external environment, and the rear drainage hole is arranged on the earphone shell and is used for communicating the rear cavity with the external environment;

the acoustic valve is mounted in the acoustic port.