CN114554371A - Acoustic switch and in-ear speaker - Google Patents

Abstract

Translated fromChinese

本发明公开了一种声学开关及入耳式扬声器，该声学开关包括外壳、磁性组件、阀芯、阀座和线圈。外壳设有内腔以及均与内腔相通的第一通孔和第二通孔。磁性组件与外壳相对固定，其包括相对间隔设置的第一磁体和第二磁体，第一磁体和第二磁体之间形成间隔空间，第一磁体和第二磁体异极相对设置。阀芯活动设置于内腔内，阀芯至少部分位于间隔空间内。阀座与外壳相连并隔开第一通孔和第二通孔，阀座设有阀孔。线圈被配置为在通电后极化阀芯以使阀芯在第一位置和第二位置之间切换。本发明的声学开关无需设置弹片，结构更为简单，不存在弹片的疲劳变形或断裂问题，工作的可靠性和使用寿命更好。

The invention discloses an acoustic switch and an in-ear speaker. The acoustic switch comprises a casing, a magnetic assembly, a valve core, a valve seat and a coil. The shell is provided with an inner cavity and a first through hole and a second through hole which are both communicated with the inner cavity. The magnetic assembly is relatively fixed to the housing, and includes a first magnet and a second magnet that are relatively spaced apart, a space is formed between the first magnet and the second magnet, and the first magnet and the second magnet are oppositely disposed. The valve core is movably arranged in the inner cavity, and the valve core is at least partially located in the separation space. The valve seat is connected with the casing and separates the first through hole and the second through hole, and the valve seat is provided with a valve hole. The coil is configured to polarize the spool to switch the spool between the first position and the second position when energized. The acoustic switch of the present invention does not need to be provided with shrapnel, has a simpler structure, does not have the problem of fatigue deformation or fracture of the shrapnel, and has better working reliability and service life.

Description

Translated fromChinese

一种声学开关及入耳式扬声器An acoustic switch and in-ear speaker

技术领域technical field

本发明涉及一种声学装置，尤其涉及一种声学开关及入耳式扬声器。The present invention relates to an acoustic device, in particular to an acoustic switch and an in-ear speaker.

背景技术Background technique

在使用入耳式耳机或者助听器等入耳式的扬声器时，入耳式扬声器需要塞入于人的耳道内，封闭的耳道会产生堵耳效应，在使用者说话时，会感觉自己说话的声音变大、有回声，严重的堵耳感甚至可能引起头晕，影响了入耳式扬声器的使用体验。When using in-ear speakers such as in-ear headphones or hearing aids, the in-ear speakers need to be inserted into the human ear canal, and the closed ear canal will cause an ear occlusion effect. When the user speaks, he will feel that his voice becomes louder , there is echo, and severe ear blockage may even cause dizziness, which affects the experience of using in-ear speakers.

相关技术中还存在在入耳式扬声器内设置声学开关以提高声学效果的技术，入耳式扬声器设有连通耳道和外界的通道，声学开关设置在通道内，其能够在需要的时候打开或者关闭通道，在通道打开时，能够连通耳道和外界，消除堵耳效应，在通道关闭时，能够使耳道形成封闭的空间，声学效果更好。In the related art, there is also a technology of arranging an acoustic switch in the in-ear speaker to improve the acoustic effect. The in-ear speaker is provided with a channel connecting the ear canal and the outside world, and the acoustic switch is arranged in the channel, which can open or close the channel when needed. , when the channel is opened, the ear canal and the outside world can be connected, eliminating the effect of blocking the ear, and when the channel is closed, the ear canal can be formed into a closed space, and the acoustic effect is better.

然而，相关的声学开关结构复杂，在切换时常会产生较大的噪音，有些声学开关在通道打开和关闭的状态还需要持续通电；另外，相关的声学开关通常设有弹片，弹片存在疲劳变形和断裂的风险，对声学开关的可靠性和使用寿命存在不利影响。However, the related acoustic switches are complex in structure, and often generate large noises during switching. Some acoustic switches need to be continuously energized when the channel is open or closed; in addition, the related acoustic switches are usually provided with shrapnel, which have fatigue deformation and Risk of breakage, adversely affecting the reliability and service life of the acoustic switch.

因此，有必要对现有技术予以改良以克服现有技术中的所述缺陷。Therefore, it is necessary to improve the prior art to overcome the stated drawbacks in the prior art.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于提供一种声学开关和入耳式扬声器，该声学开关结构更为简单。The purpose of the present invention is to provide an acoustic switch and an in-ear speaker with a simpler structure.

为实现上述发明目的，一方面，本发明提出了一种声学开关，包括：In order to achieve the above purpose of the invention, on the one hand, the present invention provides an acoustic switch, comprising:

外壳，设有内腔以及均与所述内腔相通的第一通孔和第二通孔；a casing, which is provided with an inner cavity and a first through hole and a second through hole which are both communicated with the inner cavity;

磁体组件，与所述外壳相对固定，所述磁体组件包括相对间隔设置的第一磁体和第二磁体，所述第一磁体和所述第二磁体之间形成间隔空间，所述第一磁体和所述第二磁体异极相对设置；a magnet assembly, fixed relatively to the housing, the magnet assembly includes a first magnet and a second magnet that are relatively spaced apart, a space is formed between the first magnet and the second magnet, the first magnet and the second magnet The second magnets are oppositely arranged with opposite poles;

阀芯，活动设置于所述内腔内，所述阀芯至少部分位于所述间隔空间内；a valve core, which is movably arranged in the inner cavity, and the valve core is at least partially located in the interval space;

阀座，与所述外壳相连并隔开所述第一通孔和所述第二通孔，所述阀座设有阀孔；a valve seat, which is connected to the casing and separates the first through hole and the second through hole, and the valve seat is provided with a valve hole;

线圈，所述线圈被配置为在通电后极化所述阀芯以使所述阀芯在第一位置和第二位置之间切换；在所述第一位置时，所述阀芯封闭所述阀孔；在所述第二位置时，所述阀芯打开所述阀孔。a coil configured to polarize the spool when energized to switch the spool between a first position and a second position; in the first position, the spool closes the spool valve hole; in the second position, the valve core opens the valve hole.

进一步地，在所述第一位置时，所述阀芯与所述第一磁体和所述第二磁体的其中之一吸合并封住所述阀孔；在所述第二位置时，所述阀芯与所述第一磁体和所述第二磁体的另一吸合并打开所述阀孔。Further, in the first position, the valve core attracts and seals the valve hole with one of the first magnet and the second magnet; in the second position, the valve The valve core and the other attraction of the first magnet and the second magnet open the valve hole.

进一步地，所述的声学开关还包括设于所述内腔内的导磁件，所述线圈套设于所述导磁件外部，所述导磁件、所述外壳和所述阀芯之间形成导磁回路。Further, the acoustic switch further includes a magnetic conductive member disposed in the inner cavity, the coil is sleeved outside the magnetic conductive member, and the magnetic conductive member, the casing and the valve core are arranged between the magnetic conductive member, the casing and the valve core. A magnetic conducting circuit is formed between them.

进一步地，所述外壳包括相连的第一壳体和第二壳体，所述第一通孔和所述第二通孔分别设置于所述第一壳体和所述第二壳体上，所述阀座连接在所述第一壳体和所述第二壳体之间或者与所述外壳的内侧壁相连。Further, the outer shell includes a connected first shell and a second shell, the first through hole and the second through hole are respectively provided on the first shell and the second shell, The valve seat is connected between the first housing and the second housing or connected with the inner side wall of the housing.

进一步地，所述第一壳体包括第一端板，所述第二壳体包括与所述第一端板平行设置的第二端板，所述导磁件与所述第二端板相连，所述第一磁体与所述导磁件相连，所述第二磁体与所述第一端板相连。Further, the first casing includes a first end plate, the second casing includes a second end plate arranged in parallel with the first end plate, and the magnetic conductive member is connected to the second end plate , the first magnet is connected with the magnetic conducting member, and the second magnet is connected with the first end plate.

进一步地，所述阀芯与所述外壳内侧壁滑动连接。Further, the valve core is slidably connected to the inner side wall of the housing.

进一步地，所述阀芯的第一外周面与所述外壳内侧壁间隙配合，所述阀芯开设有通气孔和/或所述阀芯的第一外周面设有凹陷的通气槽。Further, the first outer peripheral surface of the valve core is in clearance fit with the inner side wall of the housing, the valve core is provided with a ventilation hole and/or the first outer peripheral surface of the valve core is provided with a concave ventilation groove.

进一步地，所述阀芯包括套设于所述第二磁体外周的第一导向套，所述第一导向套与所述第二磁体滑动连接；和/或，Further, the valve core includes a first guide sleeve sleeved on the outer periphery of the second magnet, and the first guide sleeve is slidably connected to the second magnet; and/or,

所述阀芯包括套设于所述第一磁体外周的第二导向套，所述第二导向套与所述第一磁体滑动连接。The valve core includes a second guide sleeve sleeved on the outer periphery of the first magnet, and the second guide sleeve is slidably connected with the first magnet.

进一步地，所述第一磁体和/或所述阀芯上设置有第一缓冲垫，所述第一缓冲垫隔开所述第一磁体和所述阀芯；Further, a first buffer pad is provided on the first magnet and/or the valve core, and the first buffer pad separates the first magnet and the valve core;

所述第二磁体和/或所述阀芯上设置有第二缓冲垫，所述第二缓冲垫隔开所述第二磁体和所述阀芯，或所述阀芯上设置有第二缓冲垫，所述第二缓冲垫同时隔开所述阀芯和第二磁体及阀座。A second buffer pad is arranged on the second magnet and/or the valve core, the second buffer pad separates the second magnet and the valve core, or a second buffer pad is arranged on the valve core The second cushion pad separates the valve core from the second magnet and the valve seat at the same time.

进一步地，通过对所述线圈施加不同方向的电压驱动所述阀芯在第一位置和第二位置之间切换；或者，Further, the spool is driven to switch between the first position and the second position by applying voltages in different directions to the coil; or,

所述声学开关包括两个线圈，两个所述线圈其中之一在通电后驱动所述阀芯从第一位置切换至第二位置，另一在通电后驱动所述阀芯从第二位置切换至第一位置。The acoustic switch includes two coils, one of the two coils drives the spool to switch from the first position to the second position after being energized, and the other drives the spool to switch from the second position after being energized to the first position.

另一方面，本发明还提出了一种入耳式扬声器，包括如上任一项所述的声学开关。On the other hand, the present invention also provides an in-ear speaker, including the acoustic switch described in any one of the above.

与现有技术相比，本发明具有如下有益效果：Compared with the prior art, the present invention has the following beneficial effects:

1.本发明的声学开关设置有阀芯、用于极化阀芯的线圈以及位于阀芯两侧的第一磁体和第二磁体，线圈通电将阀芯极化为N极或者S极，以改变第一磁体和第二磁体对阀芯的磁力，从而驱动阀芯在第一位置和第二位置之间切换。本发明的声学开关无需设置弹片，结构更为简单，不存在弹片的疲劳变形或断裂问题，工作的可靠性和使用寿命更好。1. The acoustic switch of the present invention is provided with a valve core, a coil for polarizing the valve core, and a first magnet and a second magnet located on both sides of the valve core. The magnetic force of the first magnet and the second magnet to the valve core is changed, thereby driving the valve core to switch between the first position and the second position. The acoustic switch of the present invention does not need to be provided with shrapnel, has a simpler structure, does not have the problem of fatigue deformation or fracture of the shrapnel, and has better working reliability and service life.

2.由于在第一位置和第二位置时，阀芯受到第一磁体或者第二磁体的吸引力，能够保持在第一位置和第二位置，线圈无需持续通电来保持阀芯的当前位置，能耗低，发热量更小，对状态的保持更为可靠。2. Since the valve core is attracted by the first magnet or the second magnet in the first position and the second position and can be maintained in the first position and the second position, the coil does not need to be continuously energized to maintain the current position of the valve core, Low energy consumption, less heat generation, and more reliable state maintenance.

3.作为一种改进，阀芯被设置成与外壳内侧壁滑动连接和/或与第一磁体和/或第二磁体滑动连接，阀芯在运动时能够受到外壳、第一磁体或者第二磁体的引导，其移动精度更高，切换位置的动作更为准确可靠。3. As an improvement, the valve core is arranged to be slidably connected to the inner side wall of the housing and/or to the first magnet and/or the second magnet, and the valve core can be affected by the housing, the first magnet or the second magnet when moving. It has higher movement accuracy, and the action of switching positions is more accurate and reliable.

附图说明Description of drawings

图1是本发明中一种实施方式的声学开关的结构示意图。FIG. 1 is a schematic structural diagram of an acoustic switch according to an embodiment of the present invention.

图2是图1所示的声学开关的爆炸图。FIG. 2 is an exploded view of the acoustic switch shown in FIG. 1 .

图3是图1所示的声学开关的立体剖面图。FIG. 3 is a perspective cross-sectional view of the acoustic switch shown in FIG. 1 .

图4是图1所示的声学开关的剖视图，图中，阀芯处于第一位置，声学开关处于关闭状态。4 is a cross-sectional view of the acoustic switch shown in FIG. 1 , in which the valve core is in a first position and the acoustic switch is in a closed state.

图5是图4中的阀芯呈环状时的示意图。FIG. 5 is a schematic view of the valve core in FIG. 4 when it is annular.

图6是图1所示的声学开关的剖视图，图中，阀芯处于第二位置，开关处于打开状态。FIG. 6 is a cross-sectional view of the acoustic switch shown in FIG. 1 , in which the valve core is in a second position and the switch is in an open state.

图7是本发明中一种实施方式的声学开关的剖视图，图中，阀芯设于第二腔体内，开关处于关闭状态。7 is a cross-sectional view of an acoustic switch according to an embodiment of the present invention. In the figure, the valve core is arranged in the second cavity, and the switch is in a closed state.

图8是图7所示的声学开关中阀芯处于第二位置时的示意图，开关处于打开状态。FIG. 8 is a schematic diagram of the acoustic switch shown in FIG. 7 when the valve core is in the second position, and the switch is in an open state.

图9是本发明中一种实施方式的声学开关的剖视图，图中，线圈的数量为两个。9 is a cross-sectional view of an acoustic switch according to an embodiment of the present invention, in which the number of coils is two.

图10是本发明中一种实施方式的声学开关的剖视图，图中，阀座与外壳内侧壁相连。10 is a cross-sectional view of an acoustic switch according to an embodiment of the present invention, in which the valve seat is connected to the inner side wall of the housing.

图11是本发明中一种实施方式的阀芯的结构示意图，图中，阀芯设置有通气槽。11 is a schematic structural diagram of a valve core according to an embodiment of the present invention, in the figure, the valve core is provided with a ventilation groove.

图12是本发明中一种实施方式的阀芯与外壳内侧壁配接的示意图，图中，阀芯设有通气槽。FIG. 12 is a schematic diagram of the valve core and the inner side wall of the housing according to an embodiment of the present invention. In the figure, the valve core is provided with a ventilation groove.

图13是本发明中一种实施方式的阀芯与外壳内侧壁配接的示意图，图中，阀芯设有通气孔。FIG. 13 is a schematic diagram of the valve core and the inner side wall of the housing according to an embodiment of the present invention, in which the valve core is provided with a ventilation hole.

图14是本发明中一种实施方式的阀芯与第二磁体滑动连接的示意图。FIG. 14 is a schematic diagram of sliding connection between the valve core and the second magnet according to an embodiment of the present invention.

图15是本发明中一种实施方式的阀芯与第一磁体滑动连接的示意图。FIG. 15 is a schematic diagram of sliding connection between the valve core and the first magnet according to an embodiment of the present invention.

图16是本发明中一种实施方式的阀芯上设置缓冲垫的剖视图。16 is a cross-sectional view of a cushion pad provided on a valve core according to an embodiment of the present invention.

图17是本发明中一种实施方式的入耳式扬声器位于耳道内的示意图。FIG. 17 is a schematic diagram of an in-ear speaker located in the ear canal according to an embodiment of the present invention.

具体实施方式Detailed ways

为使本申请的上述目的、特征和优点能够更为明显易懂，下面结合附图，对本申请的具体实施方式做详细的说明。可以理解的是，此处所描述的具体实施例仅用于解释本申请，而非对本申请的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本申请相关的部分而非全部结构。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。In order to make the above objects, features and advantages of the present application more clearly understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all the structures related to the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

本申请中的术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。The terms "comprising" and "having" and any variations thereof in this application are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

对应于本发明一种较佳实施例的声学开关，其包括外壳1、磁体组件3、阀芯4、阀座5和线圈6。Corresponding to an acoustic switch according to a preferred embodiment of the present invention, it includes ahousing 1 , amagnet assembly 3 , avalve core 4 , avalve seat 5 and acoil 6 .

如图1至图3所示，外壳1采用导磁材料制成，其设有内腔10、第一通孔11和第二通孔12，第一通孔11和第二通孔12均连通内腔10和外界，以使得第一通孔11、内腔10和第二通孔12之间形成气流通道。As shown in FIGS. 1 to 3 , thehousing 1 is made of magnetically conductive material, and is provided with aninner cavity 10 , a first throughhole 11 and a second throughhole 12 , and the first throughhole 11 and the second throughhole 12 are all connected to each other. Theinner cavity 10 and the outside world, so that an air flow channel is formed between the first throughhole 11 , theinner cavity 10 and the second throughhole 12 .

磁体组件3与外壳1相对固定，其包括相对间隔设置的第一磁体30和第二磁体31，如图4所示，第一磁体30和第二磁体31之间形成间隔空间32，第一磁体30和第二磁体31异极相对设置，即第一磁体30和第二磁体31相对设置的磁极为N极和S极。继续参考图4，图4示出的实施例中，第一磁体30靠近第二磁体31的磁极为N极，第二磁体31靠近第一磁体30的磁极为S极；在其他实施例中，也可以将第一磁体30靠近第二磁体31的磁极设置为S极，将第二磁体31靠近第一磁体30的磁极设置为N极。Themagnet assembly 3 is relatively fixed to thehousing 1, and includes afirst magnet 30 and asecond magnet 31 that are relatively spaced apart. As shown in FIG. 4, aspace 32 is formed between thefirst magnet 30 and thesecond magnet 31. Thefirst magnet 30 and thesecond magnet 31 are disposed opposite to each other, that is, the magnetic poles of thefirst magnet 30 and thesecond magnet 31 disposed opposite to each other are N pole and S pole. Continuing to refer to FIG. 4 , in the embodiment shown in FIG. 4 , the magnetic pole of thefirst magnet 30 close to thesecond magnet 31 is N pole, and the magnetic pole of thesecond magnet 31 close to thefirst magnet 30 is S pole; in other embodiments, Alternatively, the magnetic pole of thefirst magnet 30 close to thesecond magnet 31 may be set as the S pole, and the magnetic pole of thesecond magnet 31 close to thefirst magnet 30 may be set as the N pole.

阀芯4活动设置在内腔10内，其能够沿着内腔10的轴线方向(即阀芯4的运动轴线方向)做往复运动。阀芯4至少部分位于间隔空间32内，这样，在其被极化成N极或者S极后，能够高效地被第一磁体30和第二磁体31吸引或排斥。作为一种优选的实施方式，参考图5，阀芯4呈环状，其部分延伸至间隔空间32内。作为另一种优选的实施方式，参考图4，阀芯4呈实心的板状。Thevalve core 4 is movably arranged in theinner cavity 10 , and can reciprocate along the axial direction of the inner cavity 10 (ie, the movement axis direction of the valve core 4 ). Thevalve core 4 is at least partially located in thespace 32 , so that it can be attracted or repelled by thefirst magnet 30 and thesecond magnet 31 efficiently after being polarized to the N pole or the S pole. As a preferred embodiment, referring to FIG. 5 , thevalve core 4 is annular, and a portion thereof extends into thespace 32 . As another preferred embodiment, referring to FIG. 4 , thevalve core 4 is in the shape of a solid plate.

阀座5与外壳1相连，其将内腔10分隔成第一腔体100和第二腔体101，其中，第一通孔11与第一腔体100相通，第二通孔12与第二腔体101相通。在阀座5上开设有连通第一腔体100和第二腔体101的阀孔50。这样，阀孔50即位于第一通孔11和第二通孔12之间，在阀孔50打开时，第一通孔11和第二通孔12能够通过阀孔50相通，此时气流通道被打开。而在阀孔50被阀芯4封闭时，第一通孔11和第二通孔12之间的连通被关断，此时气流通道被关断。Thevalve seat 5 is connected to thehousing 1, which divides theinner cavity 10 into afirst cavity 100 and asecond cavity 101, wherein the first throughhole 11 communicates with thefirst cavity 100, and the second throughhole 12 communicates with thesecond cavity 100. Thecavities 101 communicate with each other. Thevalve seat 5 is provided with avalve hole 50 communicating with thefirst cavity 100 and thesecond cavity 101 . In this way, thevalve hole 50 is located between the first throughhole 11 and the second throughhole 12. When thevalve hole 50 is opened, the first throughhole 11 and the second throughhole 12 can communicate through thevalve hole 50. At this time, the airflow channel is opened. When thevalve hole 50 is closed by thevalve core 4, the communication between the first throughhole 11 and the second throughhole 12 is cut off, and the airflow channel is cut off at this time.

阀芯4具有第一位置和第二位置，在第一位置时，其与阀座5贴紧，从而封住阀孔50，在第二位置时，其与阀座5脱离，从而打开阀孔50。阀芯4可以设置在第一腔体100或者第二腔体101内。参考图4，图4示出了阀芯4设置于第一腔体100内的一种情形，该情形中，第一磁体30伸入阀孔50内，其上端面300与阀座5的上表面52大致平齐。当阀芯4处于第一位置时，其与第一磁体30吸合，且同时与阀座5上表面52贴合从而封住阀孔50，当阀芯4处于第二位置时，参考图6，其与第二磁体31吸合，且与阀座5脱离接触，从而打开阀孔50。在阀芯4设置在第二腔体101内时，参考图7，图7示出了阀芯4设置于第二腔体101内的一种情形，该情形中，第二磁体31伸入阀孔50内，其下端面310与阀座5的下表面51大致平齐。当阀芯4处于第一位置时，其与第二磁体31吸合，且同时与阀座5下表面51贴合从而封住阀孔50。当阀芯4处于第二位置时，参考图8，其与第一磁体30吸合，且与阀座5脱离接触，从而打开阀孔50。Thevalve core 4 has a first position and a second position. In the first position, it is in close contact with thevalve seat 5, thereby sealing thevalve hole 50, and in the second position, it is disengaged from thevalve seat 5, thereby opening thevalve hole 50. Thevalve core 4 may be disposed in thefirst cavity 100 or thesecond cavity 101 . Referring to FIG. 4 , FIG. 4 shows a situation in which thevalve core 4 is arranged in thefirst cavity 100 . In this situation, thefirst magnet 30 extends into thevalve hole 50 , and theupper end surface 300 of thefirst magnet 30 is connected to the upper surface of thevalve seat 5 .Surface 52 is substantially flush. When thevalve core 4 is in the first position, it is attracted to thefirst magnet 30, and at the same time is attached to theupper surface 52 of thevalve seat 5 to seal thevalve hole 50. When thevalve core 4 is in the second position, refer to FIG. 6 , which is attracted to thesecond magnet 31 and disengaged from thevalve seat 5 , thereby opening thevalve hole 50 . When thevalve core 4 is arranged in thesecond cavity 101 , referring to FIG. 7 , FIG. 7 shows a situation in which thevalve core 4 is arranged in thesecond cavity 101 , in this case, thesecond magnet 31 protrudes into the valve Inside thehole 50 , thelower end surface 310 thereof is substantially flush with thelower surface 51 of thevalve seat 5 . When thevalve core 4 is in the first position, it is attracted to thesecond magnet 31 , and at the same time is abutted with thelower surface 51 of thevalve seat 5 to seal thevalve hole 50 . When thevalve core 4 is in the second position, referring to FIG. 8 , it is attracted to thefirst magnet 30 and is out of contact with thevalve seat 5 , thereby opening thevalve hole 50 .

线圈6用于通电产生磁场，将阀芯4至少位于间隔空间32内的部分极化为N极或者S极，以使得阀芯4能够在第一磁体30和第二磁体31的磁力的作用下在第一位置和第二位置之间进行切换。Thecoil 6 is used for energizing to generate a magnetic field, and at least the part of thevalve core 4 located in thespace 32 is polarized to N pole or S pole, so that thevalve core 4 can be under the action of the magnetic force of thefirst magnet 30 and thesecond magnet 31 Toggle between the first position and the second position.

以阀芯4设于第一腔体100内时为例，参考图4，图4中，第一磁体30靠近第二磁体31的端部的磁极为N极，第二磁体31靠近第一磁体30的磁极为S极，阀芯4设置在第一腔体100内。图4中阀芯4处于第一位置，当阀芯4被极化成N极时，第一磁体30将对其施加斥力，第二磁体31将对其施加吸力，此时，阀芯4将向着第二磁体31移动至与第二磁体31吸合的第二位置。当需要切换至第一位置时，参考图6，只需将阀芯4极化成S极，此时，第二磁体31对其施加斥力，第一磁体30对其施加吸力，阀芯4将向着第一磁体30移动至与第一磁体30吸合的第一位置。Taking thevalve core 4 disposed in thefirst cavity 100 as an example, referring to FIG. 4 , in FIG. 4 , the magnet pole of the end of thefirst magnet 30 close to thesecond magnet 31 is N pole, and thesecond magnet 31 is close to the first magnet The magnetic pole of 30 is the S pole, and thevalve core 4 is arranged in thefirst cavity 100 . In FIG. 4 , thevalve core 4 is in the first position. When thevalve core 4 is polarized to N pole, thefirst magnet 30 will exert a repulsive force on it, and thesecond magnet 31 will exert a suction force on it. At this time, thevalve core 4 will move toward Thesecond magnet 31 moves to a second position that is attracted to thesecond magnet 31 . When it is necessary to switch to the first position, referring to FIG. 6 , it is only necessary to polarize thevalve core 4 to the S pole. At this time, thesecond magnet 31 exerts a repulsive force on it, thefirst magnet 30 exerts a suction force on it, and thevalve core 4 will move toward the S pole. Thefirst magnet 30 moves to a first position that is attracted to thefirst magnet 30 .

作为一种优选的实施方式，声学开关还包括设于内腔10内的导磁件2，线圈6为空心线圈，其套设在导磁件2外部，并与外壳1相固定，例如采用粘结剂与外壳1粘接。外壳1、导磁件2和阀芯4采用导磁材料制成，三者之间形成导磁回路。在线圈6通电后，参考图4，图4中以带箭头的虚线示意出了导磁回路，图4中，磁感线从阀芯4穿入导磁件2内，此时阀芯4被极化为N极，导磁件2被极化为S极。当线圈6通电产生图6所示的导磁回路时，磁感线从导磁件2穿入阀芯4内，此时阀芯4被极化为S极，导磁件2被极化为N极。As a preferred embodiment, the acoustic switch further includes a magneticconductive member 2 disposed in theinner cavity 10, and thecoil 6 is an air-core coil, which is sleeved outside the magneticconductive member 2 and fixed with thehousing 1, for example, using adhesive The adhesive is bonded to thecasing 1 . Theshell 1, the magneticconductive element 2 and thevalve core 4 are made of magnetic conductive material, and a magnetic conductive circuit is formed between the three. After thecoil 6 is energized, referring to FIG. 4 , a dashed line with an arrow in FIG. 4 shows the magnetic conducting circuit. The polarization is N pole, and the magneticconductive member 2 is polarized to S pole. When thecoil 6 is energized to generate the magnetic conducting circuit shown in FIG. 6 , the magnetic field line penetrates into thevalve core 4 from the magnetic conductingmember 2 . At this time, thevalve core 4 is polarized to the S pole, and the magnetic conductingmember 2 is polarized to N pole.

可以理解的是，导磁件2可以是与外壳1相独立的零部件，两者通过焊接或者胶粘剂粘接相连，也可以是与外壳1一体成型的，即导磁件2为外壳1的一部分。It can be understood that the magneticconductive member 2 can be an independent component from thecasing 1, and the two are connected by welding or adhesive bonding, or can be integrally formed with thecasing 1, that is, the magneticconductive member 2 is a part of thecasing 1. .

在一种实施方式中，通过对同一线圈6施加不同方向的电压，改变线圈6产生的磁场的方向，从而改变阀芯4的极性。在另一种实施方式中，如图9所示，导磁件2外部设置有两个线圈6，两个线圈6在通电后产生方向不同的磁场，可以将两个线圈6的绕线方向设置成相反的形式或者将施加在两个线圈6上的电压的方向设置成相反的形式来改变两个线圈6各自产生的磁场方向，这样，通过对不同的线圈6进行通电，能够改变阀芯4的极性。例如，在一个线圈6通电后，阀芯4被极化为N极，则在该线圈6断电，另一线圈6通电后，阀芯4被极化为S极。In one embodiment, by applying voltages in different directions to thesame coil 6 , the direction of the magnetic field generated by thecoil 6 is changed, thereby changing the polarity of thevalve core 4 . In another embodiment, as shown in FIG. 9 , twocoils 6 are provided outside the magneticconductive member 2 , and the twocoils 6 generate magnetic fields in different directions after being energized, and the winding directions of the twocoils 6 can be set The direction of the magnetic field generated by the twocoils 6 can be changed in the opposite form or the direction of the voltage applied to the twocoils 6 is set in the opposite form. In this way, by energizingdifferent coils 6, thevalve core 4 can be changed. polarity. For example, after onecoil 6 is energized, thespool 4 is polarized to the N pole, then after thecoil 6 is de-energized and theother coil 6 is energized, thespool 4 is polarized to the S pole.

通过对线圈6通电极化阀芯4的方式，能够改变第一磁体30和第二磁体31对阀芯4的磁力方向，进而驱动阀芯4在第一位置和第二位置之间切换，实现声学开关的通断，无需设置弹片或者其他弹性件，结构更为简单可靠，不易因为弹片的疲劳变形或断裂影响使用性能，同时，还能够降低弹片装配在外壳内的组装难度，提高生产效率。另外，线圈6只需在需要切换位置的时候通电，在位置切换完成后，由于阀芯4本身采用导磁材料制成，因此其与第一磁体30或者第二磁体31之间具有磁吸力，线圈6无需持续通电来保持阀芯4的位置，能够减少能量的消耗，降低发热量，进一步提高声学开关的使用寿命和使用可靠性。By energizing thepolarization valve core 4 to thecoil 6, the magnetic force direction of thefirst magnet 30 and thesecond magnet 31 on thevalve core 4 can be changed, and then thevalve core 4 can be driven to switch between the first position and the second position. The on-off of the acoustic switch does not require shrapnel or other elastic parts, the structure is simpler and more reliable, and the performance is not easily affected by the fatigue deformation or fracture of the shrapnel. In addition, thecoil 6 only needs to be energized when the position needs to be switched. After the position switching is completed, since thevalve core 4 itself is made of magnetically conductive material, there is a magnetic attraction between it and thefirst magnet 30 or thesecond magnet 31. Thecoil 6 does not need to be continuously energized to maintain the position of thevalve core 4, which can reduce energy consumption, reduce heat generation, and further improve the service life and reliability of the acoustic switch.

为便于将零部件安装至内腔10内，外壳1可以采用多个零件连接而成。在一种优选的实施方式中，参考图1至图3，外壳1包括第一壳体14和第二壳体15，第一壳体14和第二壳体15配合形成内腔10，第一通孔11和第二通孔12分别设置在第一壳体14和第二壳体15上。In order to facilitate the installation of components into theinner cavity 10 , thehousing 1 may be formed by connecting a plurality of components. In a preferred embodiment, referring to FIGS. 1 to 3 , thehousing 1 includes afirst shell 14 and asecond shell 15 , thefirst shell 14 and thesecond shell 15 cooperate to form aninner cavity 10 , and thefirst shell 14 and thesecond shell 15 cooperate to form aninner cavity 10 . The through holes 11 and the second throughholes 12 are respectively provided on thefirst casing 14 and thesecond casing 15 .

第一壳体14包括第一端板140以及自第一端板140外缘沿着垂直于第一端板140的方向凸出的第一环壁141，第二壳体15包括第二端板150以及自第二端板150外缘沿着垂直于第二端板150的方向凸出的第二环壁151。第一端板140和第二端板150相平行设置，其中，第二磁体31连接在第一端板140上，导磁件2连接在第二端板150上，第一磁体30连接在导磁件2朝向阀芯4的端面上。Thefirst casing 14 includes afirst end plate 140 and a firstannular wall 141 protruding from the outer edge of thefirst end plate 140 in a direction perpendicular to thefirst end plate 140 , and thesecond casing 15 includes asecond end plate 150 and a secondannular wall 151 protruding from the outer edge of thesecond end plate 150 along a direction perpendicular to thesecond end plate 150 . Thefirst end plate 140 and thesecond end plate 150 are arranged in parallel, wherein thesecond magnet 31 is connected to thefirst end plate 140, themagnetic conductor 2 is connected to thesecond end plate 150, and thefirst magnet 30 is connected to the guide. Themagnetic element 2 faces the end face of thevalve core 4 .

在一些实施方式中，参考图4，阀座5连接在第一壳体14和第二壳体15之间，此时，阀座5采用导磁材料制成，以保证第一壳体14和第二壳体15之间的导磁效率。在另一些实施方式中，参考图10，阀座5的外周面与外壳1内侧壁13相连，第一壳体14和第二壳体15直接相连，此时，阀座5可以采用非导磁材料制成。In some embodiments, referring to FIG. 4 , thevalve seat 5 is connected between thefirst housing 14 and thesecond housing 15 . At this time, thevalve seat 5 is made of magnetically conductive material to ensure that thefirst housing 14 and thesecond housing 15 are Magnetic permeability between thesecond casings 15 . In other embodiments, referring to FIG. 10 , the outer peripheral surface of thevalve seat 5 is connected to theinner side wall 13 of thehousing 1 , and thefirst housing 14 and thesecond housing 15 are directly connected. In this case, thevalve seat 5 can be non-magnetically conductive. material.

为了使得阀芯4可靠的沿着其运动轴线运动，减少其在运动过程中位置的偏差，阀芯4被设置成与外壳1内侧壁13滑动连接。参考图11至图13，作为一种优选的实施方式，阀芯4的第一外周面40与外壳1内侧壁13间隙配合，以使得阀芯4能够沿着内侧壁13移动，位置更为准确。在该实施方式中，为了使得阀芯4打开时，气体流通更为顺畅，可以在阀芯4上开设贯穿其上下表面的通气孔41(参考图13)，或者在阀芯4的第一外周面40上设置凹陷的通气槽42(参考图11和图12)，当然也可以在阀芯4上同时设置通气孔41和通气槽42，通过设置通气孔41和通气槽42，能够增大气体的流通面积。在该实施方式中，阀芯4可以设置成板状，结构更为简单，成本更低。In order to make thevalve core 4 move reliably along its movement axis and reduce its positional deviation during the movement, thevalve core 4 is arranged to be slidably connected with theinner side wall 13 of thehousing 1 . 11 to 13, as a preferred embodiment, the first outerperipheral surface 40 of thevalve core 4 is in clearance fit with theinner side wall 13 of thehousing 1, so that thevalve core 4 can move along theinner side wall 13, and the position is more accurate . In this embodiment, in order to make the gas flow more smoothly when thevalve core 4 is opened, a vent hole 41 (refer to FIG. 13 ) can be opened on thevalve core 4 through its upper and lower surfaces, or the first outer circumference of thevalve core 4 can be opened. Aconcave ventilation groove 42 is provided on the surface 40 (refer to FIG. 11 and FIG. 12 ). Of course, aventilation hole 41 and aventilation groove 42 can also be provided on thevalve core 4 at the same time. By setting theventilation hole 41 and theventilation groove 42, the gas can be increased flow area. In this embodiment, thevalve core 4 can be arranged in a plate shape, which has a simpler structure and lower cost.

除了上述的将阀芯4设置成与外壳1内侧壁13滑动连接的形式外，还可以将阀芯4设置成与第一磁体30和/或第二磁体31滑动连接的形式。具体的，在一种实施方式中，参考图14，阀芯4包括用于在第一位置时封住阀孔50的板部43以及自板部43外凸的第一导向套44，第一导向套44采用非导磁材料制成并套设在第二磁体31外周，两者之间形成滑动连接。在位置切换过程中，通过第一导向套44和第二磁体31的导向作用提高阀芯4的移动精度。在另一种实施方式中，参考图15，阀芯4包括用于在第一位置时封住阀孔50的板部43以及自板部43外凸的第二导向套45，第二导向套45采用非导磁材料制成并套设在第一磁体30外周，两者之间形成滑动连接。在位置切换过程中，通过第二导向套45和第一磁体30的导向作用提高阀芯4的移动精度。在其他实施方式中，阀芯4包括板部43以及分别设置在板部43两侧的第一导向套44和第二导向套45，第一导向套44和第二导向套45分别套设于第二磁体31和第一磁体30上实现滑动连接。In addition to the above-mentioned form in which thevalve core 4 is slidably connected to theinner side wall 13 of thehousing 1 , thevalve core 4 can also be arranged in a form of sliding connection with thefirst magnet 30 and/or thesecond magnet 31 . Specifically, in one embodiment, referring to FIG. 14 , thevalve core 4 includes aplate portion 43 for sealing thevalve hole 50 in the first position, and afirst guide sleeve 44 protruding from theplate portion 43 . Theguide sleeve 44 is made of a non-magnetically conductive material and is sleeved on the outer periphery of thesecond magnet 31 to form a sliding connection therebetween. During the position switching process, the movement precision of thevalve core 4 is improved by the guiding action of thefirst guide sleeve 44 and thesecond magnet 31 . In another embodiment, referring to FIG. 15 , thevalve core 4 includes aplate portion 43 for sealing thevalve hole 50 in the first position, and asecond guide sleeve 45 protruding from theplate portion 43 . Thesecond guide sleeve 45 is made of non-magnetic conductive material and is sleeved on the outer circumference of thefirst magnet 30 to form a sliding connection therebetween. During the position switching process, the movement accuracy of thevalve core 4 is improved by the guiding action of thesecond guide sleeve 45 and thefirst magnet 30 . In other embodiments, thevalve core 4 includes aplate portion 43 and afirst guide sleeve 44 and asecond guide sleeve 45 respectively disposed on both sides of theplate portion 43. Thefirst guide sleeve 44 and thesecond guide sleeve 45 are sleeved on the A sliding connection is realized on thesecond magnet 31 and thefirst magnet 30 .

为了降低在阀芯4的位置切换过程中产生的噪音，同时防止阀芯4和磁体直接贴合导致吸合力太大难以脱开，声学开关还包括用于隔开第一磁体30和阀芯4的第一缓冲垫7以及用于隔开第二磁体30和阀芯4的第二缓冲垫70。第一缓冲垫7和第二缓冲垫70采用非导磁材料制成，且其为软性材料，例如是塑料、橡胶、海绵等，在隔开阀芯4和磁体的同时能够起到缓冲、吸收振动和降低噪音的作用。In order to reduce the noise generated during the position switching process of thevalve core 4 and prevent thevalve core 4 and the magnet from being directly abutted, resulting in too great a suction force and difficult to disengage, the acoustic switch further includes a device for separating thefirst magnet 30 and thevalve core 4 Thefirst buffer pad 7 and thesecond buffer pad 70 for separating thesecond magnet 30 and thevalve core 4. Thefirst buffer pad 7 and thesecond buffer pad 70 are made of non-magnetic conductive material, and they are soft materials, such as plastic, rubber, sponge, etc., which can buffer, Absorbs vibration and reduces noise.

例如，参考图3和图4，在第一磁体30朝向阀芯4的表面上设置有第一缓冲垫7，以在第一位置时，第一磁体30与阀芯4之间通过第一缓冲垫7隔开，这样，在阀芯4由第二位置切换到第一位置时，第一缓冲垫7能够起到缓冲的作用，同时也能够起到减振降噪的作用，防止因为撞击损坏相应的零部件，第一缓冲垫7上表面高于阀座5的上表面52，阀芯4在压缩第一缓冲垫7后与阀座5贴合，能够在起到缓冲作用的同时，保证阀芯4对阀孔50的密封效果。当然，还可以在阀芯4朝向第一磁体30的表面上设置第一缓冲垫7和/或在阀座5朝向阀芯4的表面上设置第一缓冲垫7，参考图16，在阀芯4朝向第一磁体30的表面上设置第一缓冲垫7，在第一位置时，第一缓冲垫7能够同时与阀座5和第一磁体30接触，把阀芯4和第一磁体30及阀座5同时隔开，拥有更好的密封效果。For example, referring to FIGS. 3 and 4 , afirst buffer pad 7 is provided on the surface of thefirst magnet 30 facing thevalve core 4 , so that in the first position, the first buffer is passed between thefirst magnet 30 and thevalve core 4 Thepads 7 are spaced apart, so that when thevalve core 4 is switched from the second position to the first position, thefirst buffer pad 7 can play a buffering role, and can also play a role in reducing vibration and noise, preventing damage due to impact. Corresponding parts, the upper surface of thefirst buffer pad 7 is higher than theupper surface 52 of thevalve seat 5, and thevalve core 4 is fitted with thevalve seat 5 after compressing thefirst buffer pad 7, which can play a buffering role while ensuring that The sealing effect of thevalve core 4 on thevalve hole 50 . Of course, thefirst buffer pad 7 may also be provided on the surface of thevalve core 4 facing thefirst magnet 30 and/or thefirst buffer pad 7 may be provided on the surface of thevalve seat 5 facing thevalve core 4 , referring to FIG. 16 , on thevalve core 4 4. Afirst buffer pad 7 is provided on the surface facing thefirst magnet 30. In the first position, thefirst buffer pad 7 can be in contact with thevalve seat 5 and thefirst magnet 30 at the same time, and thevalve core 4 and thefirst magnet 30 and Thevalve seat 5 is separated at the same time, which has a better sealing effect.

类似的，参考图3和图6，在第二磁体31朝向阀芯4的表面上设置有第二缓冲垫70，以在第二位置时，第二磁体31与阀芯4之间通过第二缓冲垫70隔开，这样，在阀芯4由第一位置切换到第二位置时，第二缓冲垫70能够起到减振降噪以及缓冲的作用。当然，还可以在阀芯4朝向第二磁体31的表面上设置第二缓冲垫70，或者同时在第二磁体31朝向阀芯4的表面上和阀芯4朝向第二磁体31的表面上设置第二缓冲垫70。Similarly, referring to FIG. 3 and FIG. 6 , asecond buffer pad 70 is provided on the surface of thesecond magnet 31 facing thevalve core 4 , so that in the second position, thesecond magnet 31 and thevalve core 4 pass through the second Thebuffer pads 70 are spaced apart, so that when thevalve core 4 is switched from the first position to the second position, thesecond buffer pad 70 can play the role of vibration reduction, noise reduction and buffering. Of course, thesecond buffer pad 70 may also be provided on the surface of thevalve core 4 facing thesecond magnet 31 , or on the surface of thesecond magnet 31 facing thevalve core 4 and the surface of thevalve core 4 facing thesecond magnet 31 at the same time Thesecond buffer pad 70 .

本发明还提出一种入耳式扬声器，如图17所示，其包括壳体8以及设置在其壳体8内的声学开关90。在使用时，入耳式扬声器设于耳道9内，壳体8包括朝向耳道9内部的第一端和朝向外界的第二端，壳体8设有连通第一端和第二端的通道80，声学开关90设在通道80上，通过控制声学开关90的通断可以控制通道80的通断。入耳式扬声器的控制系统能够检测人是否处于说话状态，当人处于说话状态时，控制系统控制声学开关打开，此时，耳道9内部和耳道9外部通过通道80连通，能够消除堵耳效应；当人未处于说话状态时，控制系统控制声学开关关闭，此时，耳道9内形成密闭的空间，能够更好的隔绝外部噪音，提高入耳式扬声器的声学表现效果。The present invention also provides an in-ear speaker, as shown in FIG. 17 , which includes ahousing 8 and anacoustic switch 90 disposed in thehousing 8 . In use, the in-ear speaker is arranged in the ear canal 9, thehousing 8 includes a first end facing the inside of the ear canal 9 and a second end facing the outside world, and thehousing 8 is provided with achannel 80 connecting the first end and the second end , theacoustic switch 90 is arranged on thechannel 80 , and the on-off of thechannel 80 can be controlled by controlling the on-off of theacoustic switch 90 . The control system of the in-ear speaker can detect whether the person is speaking. When the person is speaking, the control system controls the acoustic switch to be turned on. At this time, the inside of the ear canal 9 and the outside of the ear canal 9 are connected through thechannel 80, which can eliminate the ear blocking effect. ; When the person is not speaking, the control system controls the acoustic switch to close, at this time, a closed space is formed in the ear canal 9, which can better isolate external noise and improve the acoustic performance of the in-ear speaker.

上述仅为本发明的具体实施方式，其它基于本发明构思的前提下做出的任何改进都视为本发明的保护范围。The above are only specific embodiments of the present invention, and any improvements made based on the concept of the present invention are regarded as the protection scope of the present invention.

Claims (11)

Translated fromChinese

1.一种声学开关，其特征在于，包括：1. an acoustic switch, is characterized in that, comprises:外壳(1)，设有内腔(10)以及均与所述内腔(10)相通的第一通孔(11)和第二通孔(12)；a housing (1), provided with an inner cavity (10) and a first through hole (11) and a second through hole (12) both communicating with the inner cavity (10);磁体组件(3)，与所述外壳(1)相对固定，所述磁体组件(3)包括相对间隔设置的第一磁体(30)和第二磁体(31)，所述第一磁体(30)和所述第二磁体(31)之间形成间隔空间(32)，所述第一磁体(30)和所述第二磁体(31)异极相对设置；A magnet assembly (3), which is relatively fixed to the casing (1), the magnet assembly (3) includes a first magnet (30) and a second magnet (31) that are relatively spaced apart, the first magnet (30) A space (32) is formed between the second magnet (31) and the first magnet (30), and the first magnet (30) and the second magnet (31) are arranged opposite to each other;阀芯(4)，活动设置于所述内腔(10)内，所述阀芯(4)至少部分位于所述间隔空间(32)内；The valve core (4) is movably arranged in the inner cavity (10), and the valve core (4) is at least partially located in the interval space (32);阀座(5)，与所述外壳(1)相连并隔开所述第一通孔(11)和所述第二通孔(12)，所述阀座(5)设有阀孔(50)；A valve seat (5), connected with the casing (1) and separating the first through hole (11) and the second through hole (12), the valve seat (5) is provided with a valve hole (50) );线圈(6)，所述线圈(6)被配置为在通电后极化所述阀芯(4)以使所述阀芯(4)在第一位置和第二位置之间切换；在所述第一位置时，所述阀芯(4)封闭所述阀孔(50)；在所述第二位置时，所述阀芯(4)打开所述阀孔(50)。a coil (6) configured to polarize the spool (4) after energization to switch the spool (4) between a first position and a second position; in the In the first position, the valve core (4) closes the valve hole (50); in the second position, the valve core (4) opens the valve hole (50).2.如权利要求1所述的声学开关，其特征在于，在所述第一位置时，所述阀芯(4)与所述第一磁体(30)和所述第二磁体(30)的其中之一吸合并封住所述阀孔(50)；在所述第二位置时，所述阀芯(4)与所述第一磁体(30)和所述第二磁体(30)的另一吸合并打开所述阀孔(50)。2. The acoustic switch according to claim 1, characterized in that, in the first position, the valve core (4) is in contact with the first magnet (30) and the second magnet (30) One of them attracts and seals the valve hole (50); in the second position, the valve core (4) and the other of the first magnet (30) and the second magnet (30) A suction and open the valve hole (50).3.如权利要求1所述的声学开关，其特征在于，其还包括设于所述内腔(10)内的导磁件(2)，所述线圈(6)套设于所述导磁件(2)外部，所述导磁件(2)、所述外壳(1)和所述阀芯(4)之间形成导磁回路。3. The acoustic switch according to claim 1, characterized in that, it further comprises a magnetic conductive member (2) disposed in the inner cavity (10), and the coil (6) is sleeved on the magnetic conductive member A magnetic conductive circuit is formed between the magnetic conductive member (2), the housing (1) and the valve core (4).4.如权利要求3所述的声学开关，其特征在于，所述外壳(1)包括相连的第一壳体(14)和第二壳体(15)，所述第一通孔(11)和所述第二通孔(12)分别设置于所述第一壳体(14)和所述第二壳体(15)上，所述阀座(5)连接在所述第一壳体(14)和所述第二壳体(15)之间或者与所述外壳(1)的内侧壁(13)相连。4. The acoustic switch according to claim 3, characterized in that, the housing (1) comprises a first housing (14) and a second housing (15) that are connected, and the first through hole (11) and the second through hole (12) are respectively provided on the first casing (14) and the second casing (15), and the valve seat (5) is connected to the first casing ( 14) is connected with the second shell (15) or with the inner side wall (13) of the shell (1).5.如权利要求4所述的声学开关，其特征在于，所述第一壳体(14)包括第一端板(140)，所述第二壳体(15)包括与所述第一端板(140)平行设置的第二端板(150)，所述导磁件(2)与所述第二端板(150)相连，所述第一磁体(30)与所述导磁件(2)相连，所述第二磁体(31)与所述第一端板(140)相连。5. The acoustic switch of claim 4, wherein the first housing (14) comprises a first end plate (140), and the second housing (15) comprises a connection with the first end The second end plate (150) with the plates (140) arranged in parallel, the magnetic conductive member (2) is connected to the second end plate (150), and the first magnet (30) is connected to the magnetic conductive member ( 2) Connected, the second magnet (31) is connected with the first end plate (140).6.如权利要求1至5任一项所述的声学开关，其特征在于，所述阀芯(4)与所述外壳(1)内侧壁(13)滑动连接。6. The acoustic switch according to any one of claims 1 to 5, wherein the valve core (4) is slidably connected to the inner side wall (13) of the housing (1).7.如权利要求6所述的声学开关，其特征在于，所述阀芯(4)的第一外周面(40)与所述外壳(1)内侧壁(13)间隙配合，所述阀芯(4)开设有通气孔(41)和/或所述阀芯(4)的第一外周面(40)设有凹陷的通气槽(42)。7 . The acoustic switch according to claim 6 , wherein the first outer peripheral surface ( 40 ) of the valve core ( 4 ) is in clearance fit with the inner side wall ( 13 ) of the housing ( 1 ), and the valve core (4) A vent hole (41) is provided and/or a concave vent groove (42) is provided on the first outer peripheral surface (40) of the valve core (4).8.如权利要求1至5任一项所述的声学开关，其特征在于，所述阀芯(4)包括套设于所述第二磁体(31)外周的第一导向套(44)，所述第一导向套(44)与所述第二磁体(31)滑动连接；和/或，8. The acoustic switch according to any one of claims 1 to 5, wherein the valve core (4) comprises a first guide sleeve (44) sleeved on the outer periphery of the second magnet (31), The first guide sleeve (44) is slidably connected with the second magnet (31); and/or,所述阀芯(4)包括套设于所述第一磁体(30)外周的第二导向套(45)，所述第二导向套(45)与所述第一磁体(30)滑动连接。The valve core (4) includes a second guide sleeve (45) sleeved on the outer periphery of the first magnet (30), and the second guide sleeve (45) is slidably connected with the first magnet (30).9.如权利要求1至5任一项所述的声学开关，其特征在于，所述第一磁体(30)和/或所述阀芯(4)上设置有第一缓冲垫(7)，所述第一缓冲垫(7)隔开所述第一磁体(30)和所述阀芯(4)；9. The acoustic switch according to any one of claims 1 to 5, characterized in that, a first buffer pad (7) is provided on the first magnet (30) and/or the valve core (4), The first buffer pad (7) separates the first magnet (30) and the valve core (4);所述第二磁体(31)和/或所述阀芯(4)上设置有第二缓冲垫(70)，所述第二缓冲垫(70)隔开所述第二磁体(31)和所述阀芯(4)。A second buffer pad (70) is provided on the second magnet (31) and/or the valve core (4), and the second buffer pad (70) separates the second magnet (31) from the second buffer pad (70). Describe the valve core (4).10.如权利要求1至5任一项所述的声学开关，其特征在于，通过对所述线圈(6)施加不同方向的电压驱动所述阀芯(4)在第一位置和第二位置之间切换；或者，10. The acoustic switch according to any one of claims 1 to 5, wherein the valve core (4) is driven in the first position and the second position by applying voltages in different directions to the coil (6) switch between; or,所述声学开关包括两个线圈(6)，两个所述线圈(6)其中之一在通电后驱动所述阀芯(4)从第一位置切换至第二位置，另一在通电后驱动所述阀芯(4)从第二位置切换至第一位置。The acoustic switch comprises two coils (6), one of the two coils (6) drives the valve core (4) to switch from a first position to a second position after being energized, and the other drives the spool (4) after being energized The valve core (4) is switched from the second position to the first position.11.一种入耳式扬声器，其特征在于，包括如权利要求1至10任一项所述的声学开关。11. An in-ear speaker, characterized by comprising the acoustic switch according to any one of claims 1 to 10.

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