WO2022082861A1 - 扬声器单体及电子设备 - Google Patents

扬声器单体及电子设备 Download PDF

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Publication number
WO2022082861A1
WO2022082861A1 PCT/CN2020/126087 CN2020126087W WO2022082861A1 WO 2022082861 A1 WO2022082861 A1 WO 2022082861A1 CN 2020126087 W CN2020126087 W CN 2020126087W WO 2022082861 A1 WO2022082861 A1 WO 2022082861A1
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WO
WIPO (PCT)
Prior art keywords
voice coil
dome
speaker unit
magnetic
diaphragm
Prior art date
Application number
PCT/CN2020/126087
Other languages
English (en)
French (fr)
Inventor
曹成铭
王琳琛
曾健
徐祝江
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声光电科技(常州)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声光电科技(常州)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022082861A1 publication Critical patent/WO2022082861A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Definitions

  • the present application relates to the technical field of speakers, and in particular, to a speaker unit and an electronic device.
  • speakers are widely used in various portable electronic devices such as mobile phones, tablet computers, and portable game consoles.
  • the voice coil drives the diaphragm to produce sound by driving the dome movement, and the voice coil also separates the internal space of the speaker into two parts.
  • the high frequency sensitivity of the loudspeaker is affected to some extent. Therefore, it is necessary to design a new type of loudspeaker to change the status quo.
  • the present application provides a speaker unit and an electronic device with improved high frequency sensitivity compared to conventional speakers.
  • the present application proposes a speaker unit, including:
  • the vibration assembly includes a voice coil, a first diaphragm and a dome, the first diaphragm is respectively connected to the basin frame and the dome, and one end of the voice coil is connected to the dome and at least partially suspended It is placed in the magnetic gap to separate the inner space of the basin frame into an inner cavity located inside the voice coil and an outer cavity located outside the voice coil, and the magnetic circuit assembly is used to drive the The voice coil moves to make the first diaphragm emit sound; wherein, the dome is provided with connecting grooves which are respectively communicated with the inner cavity and the outer cavity.
  • the spherical top is provided with a plurality of the connecting grooves.
  • the number of the connecting grooves is two, and the two connecting grooves are symmetrically arranged on opposite sides of the dome.
  • the vibration assembly further includes a second diaphragm, the second diaphragm is respectively connected to the voice coil and the basin frame, and is located on the voice coil away from the dome one end of the second diaphragm; the second diaphragm is at least partially suspended in the outer cavity.
  • the vibration assembly further includes a flexible connecting member, the flexible connecting member is respectively fixed to the voice coil and the basin frame, and the flexible connecting member is arranged on the second vibration The side of the membrane remote from the dome.
  • the orthographic projection of the first diaphragm on the dome along the moving direction of the voice coil covers the connection groove.
  • the first diaphragm has a fixed part, a ring part and a connecting part connected to each other, the fixed part is connected to the basin frame, and the connecting part is connected to the dome , and the orthographic projection of the connecting portion on the dome along the moving direction of the voice coil covers the connecting groove.
  • the connecting portion includes a covering portion and an annular connecting portion body, the folded ring portion is connected to the outside of the connecting portion body, and the covering portion is located inside the connecting portion body.
  • the connecting groove runs through the dome along the moving direction of the voice coil, and the covering portion is covered on the side of the connecting groove away from the voice coil.
  • the magnetic circuit assembly includes a magnetic bowl, a main magnetic steel and a secondary magnetic steel, the magnetic bowl is fixed on the basin frame, and both the main magnetic steel and the secondary magnetic steel are Fixed on the magnetic bowl, the auxiliary magnetic steel surrounds the main magnetic steel and is spaced apart from it to form the magnetic gap.
  • the secondary magnets include two first secondary magnets and two second secondary magnets, two of the first secondary magnets and two of the second secondary magnets They are symmetrically arranged on opposite sides of the main magnet, and the direction of one of the first auxiliary magnets toward the other is perpendicular to the direction of the second auxiliary magnet toward the other. Describe the direction of the second pair of magnets.
  • the basin frame is provided with a positioning groove
  • the magnetic circuit assembly has a positioning protrusion
  • the positioning protrusion is embedded in the positioning groove
  • the orthographic projection of the voice coil on the dome along its moving direction at least partially falls within the range of the connecting slot.
  • the present application also provides an electronic device, including the speaker unit described in any one of the above.
  • the magnetic circuit assembly drives the voice coil to move to drive the dome to vibrate, thereby driving the first diaphragm to vibrate and produce sound
  • the voice coil divides the inner space of the basin frame into an inner cavity located inside the voice coil
  • the body and the outer cavity located on the outside of the voice coil by opening a connecting slot on the dome that communicates with the inner cavity and the outer cavity, during the sounding process of the speaker unit, the airflow in the inner cavity can pass through the connecting slot and the outer cavity.
  • the outer cavity conducts flow exchange.
  • the air flow in the inner cavity can be exchanged with the outer cavity and/or the outer space through the connecting groove, the structure is simple, and the high frequency sensitivity of the speaker unit is improved.
  • FIG. 1 is a schematic diagram of an electronic device in an embodiment of the present application.
  • FIG. 2 is a perspective view of a speaker unit in an embodiment of the present application.
  • FIG. 3 is a perspective view of a speaker unit from another perspective in the embodiment of the present application.
  • FIG. 4 is a partial cross-sectional schematic diagram of a speaker unit in an embodiment of the present application.
  • Fig. 5 is the enlarged view of part A in Fig. 4;
  • Fig. 6 is the partial structure schematic diagram of the vibration assembly in the embodiment of the present application.
  • FIG. 7 is an exploded view of a speaker unit in an embodiment of the present application.
  • 200 magnetic circuit assembly; 210, main magnet; 220, secondary magnet; 221, first secondary magnet; 222, second secondary magnet; 223, positioning protrusion; 230, magnetic gap; 240, main pole core ; 250, secondary pole core; 260, magnetic bowl;
  • 300 vibration assembly; 310, voice coil; 320, first diaphragm; 321, connecting part; 3211, connecting part body; 3212, covering part; 322, ring part; 323, fixing part; 330, dome; 331 , connecting groove; 340, second diaphragm; 350, flexible connector;
  • an embodiment of the present application provides an electronic device 1 , which includes a speaker unit 10 and a housing 20 .
  • the speaker unit 10 is fixed in the housing 20 and is used to generate sound.
  • the speaker unit 10 includes a basin frame 100 , a magnetic circuit assembly 200 and a vibration assembly 300 .
  • the basin frame 100 is used as a carrier for installing the magnetic circuit assembly 200 and the vibration assembly 300 .
  • the magnetic circuit assembly 200 is provided with inside the basin frame 100 and used to drive the vibration component 300 to vibrate and produce sound.
  • the magnetic circuit assembly 200 has a magnetic gap 230 ;
  • the vibration assembly 300 includes a voice coil 310 , a first diaphragm 320 and a dome 330 , and the first diaphragm 320 is respectively connected to the basin frame 100 and the dome 330 , one end of the voice coil 310 is connected to the dome 330 and at least partially suspended in the magnetic gap 230 , so as to separate the inner space of the basin frame 100 into the inner cavity 110 located inside the voice coil 310 and the inner cavity 110 located outside the voice coil 310 .
  • the magnetic circuit assembly 200 is used to drive the voice coil 310 to move to make the first diaphragm 320 emit sound; wherein, the dome 330 is provided with connecting grooves 331 respectively communicating with the inner cavity 110 and the outer cavity 120 .
  • the magnetic circuit assembly 200 drives the voice coil 310 to move to drive the dome 330 to vibrate, thereby driving the first diaphragm 320 to vibrate and produce sound.
  • the voice coil 310 divides the interior space of the basin frame 100 into The inner cavity 110 located inside the voice coil 310 and the outer cavity 120 located outside the voice coil 310 are provided with a connecting groove 331 on the dome 330 that communicates with the inner cavity 110 and the outer cavity 120 . During the sounding process, the airflow in the inner cavity 110 can be exchanged with the outer cavity 120 through the connecting groove 331 .
  • the air flow in the inner cavity 110 can be exchanged with the outer cavity 120 and/or the outer space through the connecting groove 331.
  • the structure is simple, and the height of the speaker unit 10 is high. Frequency sensitivity is improved.
  • the outer cavity 120 is communicated with the external space, and the gas inside the inner cavity 110 enters the outer cavity 120 through the connecting groove 331 during the process of the speaker unit 10 vibrating and producing sound. And through the outer cavity 120 to exchange gas with the external space; in other embodiments, the outer cavity 120 may also be disconnected from the external environment.
  • the inner space of 100 is in a substantially sealed state.
  • the gas inside the inner cavity 110 can be exchanged with the outer cavity 120 through the connecting groove 331 , which is not limited herein.
  • the inner cavity 110 is connected to the outer cavity 120 through the connecting groove 331 to form a gas exchange path 400 .
  • the magnetic circuit assembly 200 drives the voice coil 310 to move to drive the first diaphragm 320 to vibrate
  • the inner cavity 110 is
  • the inner space of the cavity 110 changes, and the gas inside the inner cavity 110 realizes gas exchange with the outer cavity 120 through the gas exchange path 400.
  • the gas in the outer cavity 120 can flow inside the basin frame 100, or can By gas exchange with the outside space.
  • the dome 330 is provided with a plurality of connecting grooves 331 . It can be understood that, by forming a plurality of connecting grooves 331 on the dome 330, during the process of sounding from the speaker unit 10, the gas inside the inner cavity 110 can pass through the plurality of connecting grooves 331 and the outer cavity 120. exchange.
  • the number of the connecting grooves 331 is two, and the two connecting grooves 331 are symmetrically arranged on opposite sides of the dome 330 .
  • the exchange and circulation of the gas is more balanced.
  • the vibration assembly 300 further includes a second diaphragm 340 .
  • the second diaphragm 340 is connected to the voice coil 310 and the basin frame 100 respectively, and is located at the voice coil 310 away from the dome.
  • One end of 330 ; the second diaphragm 340 is at least partially suspended in the outer cavity 120 .
  • the second diaphragm 340 can also provide support for the voice coil 310 when the voice coil 310 drives the dome 330 to vibrate.
  • the 340 is at least partially arranged in the outer cavity 120 , which can make the speaker unit 10 have a more compact structure, and the overall volume of the speaker unit 10 is small, which is convenient for the installation and arrangement of the speaker unit 10 in the electronic device 1 .
  • the vibration assembly 300 further includes a flexible connecting member 350 , the flexible connecting member 350 is respectively fixed to the voice coil 310 and the basin frame 100 , and the flexible connecting member 350 is disposed on the side of the second diaphragm 340 away from the dome 330 .
  • the flexible connecting member 350 can cooperate with the second diaphragm 340 to provide a more stable support for the voice coil 310, and in some embodiments, it can also Wires are provided on the flexible connector 350 to connect the voice coil 310 .
  • the orthographic projection of the first diaphragm 320 on the dome 330 along the moving direction of the voice coil 310 covers the connecting groove 331 .
  • the dome 330 and the basin frame 100 are respectively connected through the first diaphragm 320 to seal the direction of the basin frame 100 toward the first diaphragm 320 .
  • the first diaphragm 320 has a connecting portion 321 , a folding ring portion 322 and a fixing portion 323 , the fixing portion 323 is connected to the basin frame 100 , the connecting portion 321 is connected to the dome 330 , and the connecting portion 321
  • the orthographic projection on the dome 330 along the moving direction of the voice coil 310 covers the connecting groove 331 .
  • the connecting portion 321 includes a covering portion 3212 and a ring-shaped connecting portion body 3211 , the folded ring portion 322 is connected to the outer side of the connecting portion body 3211 , and the covering portion 3212 is located on the connecting portion body.
  • the connecting groove 331 penetrates the dome 330 along the moving direction of the voice coil 310 , and the covering portion 3212 covers the side of the connecting groove 331 away from the voice coil 310 . It can be understood that the thickness dimension of the dome 330 along the vibration direction of the voice coil 310 is relatively small.
  • the processing cost of the dome 330 can be reduced, and at the same time, the dome 330 is far away from the voice coil.
  • One side surface of the 310 is covered with a covering portion 3212, which can block the connecting groove 331, thereby ensuring that the first diaphragm 320 is connected with the dome 330 to form a sealed structure.
  • the connecting groove 331 may also be located only on the side of the dome 330 facing the voice coil 310 , and does not penetrate through the side surface of the dome 330 away from the voice coil 310 , because the thickness of the dome 330 is small, so The requirements for machining accuracy also increase, and the machining cost also increases.
  • the magnetic circuit assembly 200 includes a magnetic bowl 260 , a main magnetic steel 210 and a secondary magnetic steel 220 , the magnetic bowl 260 is fixed on the basin frame 100 , and the main magnetic steel 210 and the auxiliary magnetic steel 220 are both fixed on On the magnetic bowl 260 , the auxiliary magnetic steel 220 surrounds the main magnetic steel 210 and is spaced therefrom to form a magnetic gap 230 .
  • the magnetic bowl 260 is fixed to the side of the basin frame 100 away from the first diaphragm 320 .
  • the secondary magnetic steel 220 includes two first secondary magnetic steels 221 and two second secondary magnetic steels 222 , two first secondary magnetic steels 221 and two second secondary magnetic steels 221 .
  • the two secondary magnets 222 are symmetrically disposed on opposite sides of the main magnet 210 , and the direction of one of the first secondary magnets 221 toward the other first secondary magnet 221 is perpendicular to the direction of one of the second secondary magnets 222 toward the other The direction of the second secondary magnet 222 .
  • the two first auxiliary magnets 221 and the two second auxiliary magnets 222 are arranged in a rectangular structure, and the main magnetic steel 210 is also in a rectangular shape.
  • the first auxiliary magnetic steel 221 and the second auxiliary magnetic steel 222 are alternately arranged in turn and surround the main magnet steel 210 to form the secondary pole core 250 for driving the voice coil 310 to move.
  • the secondary magnet 220 can also be configured as a ring magnet and arranged around the main magnet 210 .
  • the magnetic circuit assembly 200 further includes a main pole core 240 and a secondary pole core 250 .
  • the main pole core 240 is arranged on the side of the main magnetic steel 210 away from the magnetic bowl 260 , and the secondary pole core 250 It is arranged on the side of the secondary magnetic steel 220 away from the magnetic bowl 260, and the secondary pole core 250 surrounds and is spaced apart from the main pole core 240 to form a pole core gap that communicates with the magnetic gap 230.
  • the voice coil 310 is at least partially suspended on the main pole core 240. pole core gap and magnetic gap 230.
  • the secondary pole core 250 is a ring-shaped structure; in other embodiments, the secondary pole core 250 can also be set to a structure similar to that of the secondary magnetic steel 220 in the above-mentioned embodiment, that is, it is composed of four bar-shaped pole cores , and is arranged around the outer side of the main pole core 240 , and details are not described here.
  • the secondary pole core 250 is substantially rectangular, and the inner sides of the four corners of the secondary pole core 250 are provided with slots, and the adjacent first secondary magnetic steel 221 and second secondary magnetic steel 222 A cavity is also formed therebetween.
  • the second diaphragm 340 is at least partially protruded into the slot and the cavity, so that the speaker unit 10 has a compact structure.
  • the basin frame 100 is provided with a positioning groove 130
  • the magnetic circuit assembly 200 has a positioning protrusion 223
  • the positioning protrusion 223 is embedded in the positioning groove 130 .
  • the magnetic circuit assembly 200 can be positioned with the basin frame 100 through the positioning convex portion 223 , the structure is simple, and the installation is convenient.
  • the positioning protrusions 223 may also be disposed on the basin frame 100 , while the positioning grooves 130 are formed on the magnetic circuit assembly 200 , which is not limited herein.
  • the positioning protrusion 223 is provided on the first secondary magnetic steel 221 .
  • the first secondary magnetic steel 221 can be positioned and fixed by the positioning protrusion 223 and the positioning groove 130 .
  • the positioning convex portion 223 can also be arranged on the second secondary magnetic steel 222 or the secondary pole core 250, while the basin frame 100 is provided with a positioning groove 130 at the corresponding position to realize the positioning of the magnetic circuit assembly 200. Effect.
  • the orthographic projection of the voice coil 310 on the dome 330 along its moving direction at least partially falls within the range of the connecting groove 331 .
  • the orthographic projection of the connecting groove 331 on the dome 330 along the moving direction of the voice coil 310 passes through the voice coil 310 and is located on the outside and inside of the voice coil 310 respectively, so that the connecting groove 331 They are respectively connected to the inner cavity 110 and the outer cavity 120 to form the gas exchange path 400 in the above embodiment.
  • one end of the projection of the connecting groove 331 on the dome 330 along the moving direction of the voice coil 310 is located inside the voice coil 310, and the other end coincides with the voice coil 310; in this embodiment, the inner cavity
  • the gas inside the body 110 can also be exchanged and circulated with the outer cavity 120 through the connecting groove 331 , which is not limited herein.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

本申请提供了一种扬声器单体以及电子设备，扬声器单体包括盆架、磁路组件以及振动组件；磁路组件固定于盆架内，磁路组件具有磁间隙；振动组件包括音圈、第一振膜以及球顶，第一振膜分别连接于盆架和球顶，音圈的一端连接于球顶并至少部分悬置于磁间隙内，以将盆架的内部空间分隔为位于音圈内侧的内腔体以及位于音圈外侧的外腔体，磁路组件用于驱动音圈移动以使第一振膜发声；其中，球顶上开设有分别连通于内腔体和外腔体的连接槽。本实施例提供的扬声器单体在使用过程中，位于内腔体内的气流可以通过连接槽与外腔体和/或外部空间进行气体交换，结构简单，扬声器单体的高频灵敏度得以改善。

Description

扬声器单体及电子设备 技术领域
本申请涉及扬声器技术领域，尤其涉及一种扬声器单体及电子设备。
 背景技术
扬声器作为一种重要的部件，广泛应用于例如手机、平板电脑、便携游戏机等各种便携式的电子设备中。
 技术问题
在传统的扬声器中，音圈通过驱动球顶运动以带动振膜发声，同时音圈也将扬声器的内部空间分隔两部分，在发声过程中，位于音圈内侧腔体内的气流无法与外界流通，扬声器的高频灵敏性受到一定的影响。因此有必要设计一种新型的扬声器，以改变现状。
 技术解决方案
有鉴于此，本申请提供了一种扬声器单体及电子设备，相较于传统的扬声器，其高频灵敏度得以改善。
本申请提出一种扬声器单体，包括：
盆架；
磁路组件，固定于所述盆架内，所述磁路组件具有磁间隙；以及
振动组件，包括音圈、第一振膜以及球顶，所述第一振膜分别连接于所述盆架和所述球顶，所述音圈的一端连接于所述球顶并至少部分悬置于所述磁间隙内，以将所述盆架的内部空间分隔为位于所述音圈内侧的内腔体以及位于所述音圈外侧的外腔体，所述磁路组件用于驱动所述音圈移动以使所述第一振膜发声；其中，所述球顶上开设有分别连通于所述内腔体和所述外腔体的连接槽。
在本申请的一些实施例中，所述球顶开设有多个所述连接槽。
在本申请的一些实施例中，所述连接槽的数目为两个，且两个所述连接槽对称设于所述球顶的相对两侧。
在本申请的一些实施例中，所述振动组件还包括第二振膜，所述第二振膜分别连接于所述音圈和所述盆架，并位于所述音圈远离所述球顶的一端；所述第二振膜至少部分悬置于所述外腔体内。
在本申请的一些实施例中，所述振动组件还包括柔性连接件，所述柔性连接件分别固定于所述音圈和所述盆架，且所述柔性连接件设于所述第二振膜远离所述球顶的一侧。
在本申请的一些实施例中，所述第一振膜沿所述音圈的移动方向在所述球顶上的正投影覆盖所述连接槽。
在本申请的一些实施例中，所述第一振膜具有相接的固定部、折环部和连接部，所述固定部连接于所述盆架，所述连接部连接于所述球顶，且所述连接部沿所述音圈的移动方向在所述球顶上的正投影覆盖所述连接槽。
在本申请的一些实施例中，所述连接部包括覆盖部以及环形的连接部本体，所述折环部连接于所述连接部本体的外侧，所述覆盖部位于所述连接部本体的内侧，所述连接槽沿所述音圈的移动方向贯穿所述球顶，所述覆盖部盖设于所述连接槽远离所述音圈的一侧。
在本申请的一些实施例中，所述磁路组件包括磁碗、主磁钢和副磁钢，所述磁碗固定于所述盆架上，所述主磁钢和所述副磁钢均固定于所述磁碗上，所述副磁钢环绕所述主磁钢并与其间隔设置，以形成所述磁间隙。
在本申请的一些实施例中，所述副磁钢包括两个第一副磁钢和两个第二副磁钢，两个所述第一副磁钢和两个所述第二副磁钢均对称设于所述主磁钢的相对两侧，其中一个所述第一副磁钢朝向另一个所述第一副磁钢的方向垂直于其中一个所述第二副磁钢朝向另一个所述第二副磁钢的方向。
在本申请的一些实施例中，所述盆架上开设有定位槽，所述磁路组件具有定位凸部，所述定位凸部嵌设于所述定位槽内。
在本申请的一些实施例中，所述音圈沿其移动方向在所述球顶上的正投影至少部分落入所述连接槽的范围内。
本申请还提供了一种电子设备，包括上述任意一项所述的扬声器单体。
 有益效果
实施本申请实施例，具有如下有益效果：
在本实施例的扬声器单体中，磁路组件通过驱动音圈移动以带动球顶振动，进而带动第一振膜振动发声，音圈将盆架的内部空间分隔为位于音圈内侧的内腔体以及位于音圈外侧的外腔体，通过在球顶上开设有连通于内腔体和外腔体的连接槽，在扬声器单体发声过程中，内腔体中的气流可以通过连接槽与外腔体进行流通交换。本实施例提供的扬声器单体在使用过程中，位于内腔体内的气流可以通过连接槽与外腔体和/或外部空间进行气体交换，结构简单，扬声器单体的高频灵敏度得以改善。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
其中：
图1是本申请的实施例中电子设备的示意图；
图2是本申请的实施例中扬声器单体的立体视图；
图3是本申请的实施例中扬声器单体另一视角的立体视图；
图4是本申请的实施例中扬声器单体局部剖视示意图；
图5是图4中局部A的放大视图；
图6是本申请的实施例中振动组件的局部结构示意图；
图7是本申请的实施例中扬声器单体的爆炸视图；
图中：
1、电子设备；
10、扬声器单体；
100、盆架；110、内腔体；120、外腔体；130、定位槽；
200、磁路组件；210、主磁钢；220、副磁钢；221、第一副磁钢；222、第二副磁钢；223、定位凸部；230、磁间隙；240、主极芯；250、副极芯；260、磁碗；
300、振动组件；310、音圈；320、第一振膜；321、连接部；3211、连接部本体；3212、覆盖部；322、折环部；323、固定部；330、球顶；331、连接槽；340、第二振膜；350、柔性连接件；
400、气体交换路径；
20、壳体。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
参阅图1所示，本申请实施例提供了一种电子设备1，其包括有一种扬声器单体10以及壳体20，扬声器单体10固定于壳体20内，并用于发声。
具体地，参阅图2所示，扬声器单体10包括盆架100、磁路组件200以及振动组件300，盆架100作为载体以用于安装磁路组件200和振动组件300，磁路组件200设于盆架100内部，并用于驱动振动组件300振动发声。
请继续参阅图4和图5，磁路组件200具有磁间隙230；振动组件300包括音圈310、第一振膜320以及球顶330，第一振膜320分别连接于盆架100和球顶330，音圈310的一端连接于球顶330并至少部分悬置于磁间隙230内，以将盆架100的内部空间分隔为位于音圈310内侧的内腔体110以及位于音圈310外侧的外腔体120，磁路组件200用于驱动音圈310移动以使第一振膜320发声；其中，球顶330上开设有分别连通于内腔体110和外腔体120的连接槽331。
在本实施例的扬声器单体10中，磁路组件200通过驱动音圈310移动以带动球顶330振动，进而带动第一振膜320振动发声，音圈310将盆架100的内部空间分隔为位于音圈310内侧的内腔体110以及位于音圈310外侧的外腔体120，通过在球顶330上开设有连通于内腔体110和外腔体120的连接槽331，在扬声器单体10发声过程中，内腔体110中的气流可以通过连接槽331与外腔体120进行流通交换。本实施例提供的扬声器单体10在使用过程中，位于内腔体110内的气流可以通过连接槽331与外腔体120和/或外部空间进行气体交换，结构简单，扬声器单体10的高频灵敏度得以改善。
需要说明的是，在本实施例中，外腔体120与外部空间互相连通，扬声器单体10在振动发声的过程中，内腔体110内部的气体通过连接槽331进入外腔体120中，并通过外腔体120与外部空间进行气体交换；在其他实施例中，外腔体120也可以与外部环境不相连通，也就是说，盆架100在于第一振膜320连接之后，盆架100的内部空间处于大致密封的状态，在此实施例中，内腔体110内部的气体可以通过连接槽331与外腔体120进行交换，在此不做唯一限定。
参阅图5所示，内腔体110通过连接槽331连通于外腔体120以形成气体交换路径400，当磁路组件200驱动音圈310移动以带动第一振膜320振动的过程中，内腔体110的内部空间产生变化，内腔体110内部的气体即通过气体交换路径400与外腔体120实现气体流通交换，外腔体120内部的气体可以在盆架100内部进行流动，也可以通过与外部空间进行气体交换。
进一步地，球顶330开设有多个连接槽331。可以理解地是，通过在球顶330上开设有多个连接槽331，在扬声器单体10发声的过程中，内腔体110内部的气体可以通过多个连接槽331与外腔体120进行气体交换。
参阅图7所示，在本实施例中，连接槽331的数目为两个，且两个连接槽331对称设于球顶330的相对两侧。通过在球顶330上开设有对称设置的两个连接槽331，在扬声器单体10运行的过程中，气体的交换流通更为平衡。
参阅图3和图7所示，在一实施例中，振动组件300还包括第二振膜340，第二振膜340分别连接于音圈310和盆架100，并位于音圈310远离球顶330的一端；第二振膜340至少部分悬置于外腔体120内。
在本实施例中，通过设置的第二振膜340，在音圈310驱动球顶330振动的过程中，第二振膜340也可以为音圈310提供支撑作用，并且通过将第二振膜340至少部分设置在外腔体120内，可以使扬声器单体10具有更为紧凑的结构，扬声器单体10整体体积较小，便于扬声器单体10在电子设备1中安装与布置。
进一步地，振动组件300还包括柔性连接件350，柔性连接件350分别固定于音圈310和盆架100，且柔性连接件350设于第二振膜340远离球顶330的一侧。
可以理解地是，通过设置柔性连接件350，在一方面，柔性连接件350可以与第二振膜340相配合以为音圈310提供更为稳定的支撑作用，同时在一些实施例中，也可以在柔性连接件350上设置导线以连接音圈310。
参阅图2和图4所示，第一振膜320沿音圈310的移动方向在球顶330上的正投影覆盖连接槽331。由此设置，通过第一振膜320分别连接球顶330和盆架100，以对盆架100朝向第一振膜320的方向进行密封。
参阅图4所示，第一振膜320具有相接的连接部321、折环部322和固定部323，固定部323连接于盆架100，连接部321连接于球顶330，且连接部321沿音圈310的移动方向在球顶330上的正投影覆盖连接槽331。
在一实施例中，参阅图4至图7所示，连接部321包括覆盖部3212以及环形的连接部本体3211，折环部322连接于连接部本体3211的外侧，覆盖部3212位于连接部本体3211的内侧，连接槽331沿音圈310的移动方向贯穿球顶330，覆盖部3212盖设于连接槽331远离音圈310的一侧。可以理解地是，球顶330沿音圈310振动方向上的厚度尺寸较小，通过设置贯穿球顶330的连接槽331，可以降低球顶330的加工成本，同时通过在球顶330远离音圈310的一侧表面盖设有覆盖部3212，可以对连接槽331进行封堵，从而保证第一振膜320与球顶330连接形成密封的结构。
在其他实施例中，连接槽331也可以仅位于球顶330朝向音圈310的一侧，并且未贯穿球顶330远离音圈310的一侧表面，由于球顶330的厚度尺寸较小，所以加工精度要求也随之提高，加工成本也随之提高。
参阅图1和图4所示，磁路组件200包括磁碗260、主磁钢210和副磁钢220，磁碗260固定于盆架100上，主磁钢210和副磁钢220均固定于磁碗260上，副磁钢220环绕主磁钢210并与其间隔设置，以形成磁间隙230。具体如图4所示的实施例，磁碗260固定于盆架100远离第一振膜320的一侧。
参阅图4和图7所示，在一实施例中，副磁钢220包括两个第一副磁钢221和两个第二副磁钢222，两个第一副磁钢221和两个第二副磁钢222均对称设于主磁钢210的相对两侧，其中一个第一副磁钢221朝向另一个第一副磁钢221的方向垂直于其中一个第二副磁钢222朝向另一个第二副磁钢222的方向。
在本实施例中，两个第一副磁钢221和两个第二副磁钢222排列为矩形结构，且主磁钢210也为矩形形状，第一副磁钢221与第二副磁钢222依次交错并环绕主磁钢210设置，以形成用于驱动音圈310移动的副极芯250。在一些其他实施例中，副磁钢220也可以设置为环形磁钢，并环绕主磁钢210设置。
进一步地，参阅图4和图7所示，磁路组件200还包括主极芯240和副极芯250，主极芯240设于主磁钢210远离磁碗260的一侧，副极芯250设于副磁钢220远离磁碗260的一侧，并且副极芯250环绕并与主极芯240间隔设置，以形成与磁间隙230相连通的极芯间隙，音圈310至少部分悬置于极芯间隙和磁间隙230内。
在本实施例中副极芯250为环形结构；在其他实施例中，副极芯250也可以设置为与上述实施例中副磁钢220相似的结构，也就是由四个条形极芯组成，并环绕设置与主极芯240外侧，在此不做赘述。
参阅图7所示，在本实施例中，副极芯250大致为矩形，且副极芯250的四角内侧开设有槽位，同时相邻的第一副磁钢221与第二副磁钢222之间也形成有空腔，在本实施例的扬声器单体10装配之后，第二振膜340至少部分凸入上述槽位和空腔内，以使扬声器单体10具有紧凑的结构。
参阅图3和图7所示，在一实施例中，盆架100上开设有定位槽130，磁路组件200具有定位凸部223，定位凸部223嵌设于定位槽130内。
由此设置，磁路组件200可以通过定位凸部223与盆架100进行定位，结构简单，安装便捷。在另一实施例中，定位凸部223也可以设置在盆架100上，同时定位槽130开设于磁路组件200上，在此不做唯一限定。
参阅图7所示，在一实施例中，定位凸部223设于第一副磁钢221上，在组装过程中，第一副磁钢221可以通过定位凸部223与定位槽130实现定位固定；在其他实施例中，定位凸部223也可以设置在第二副磁钢222或副极芯250上，同时盆架100在对应位置开设有定位槽130，以实现对磁路组件200的定位效果。
具体在一实施例中，音圈310沿其移动方向在球顶330上的正投影至少部分落入连接槽331的范围内。
参阅图6所示的实施例，连接槽331沿音圈310的移动方向在球顶330上的正投影穿过音圈310，并分别位于音圈310的外侧和内侧，由此使连接槽331分别连通于内腔体110和外腔体120，以形成上述实施例中的气体交换路径400。
在一些其他实施例中，连接槽331沿音圈310的移动方向在球顶330上的投影的一端位于音圈310的内侧，并且另一端与音圈310重合；在本实施例中，内腔体110内部的气体也可以通过连接槽331与外腔体120进行交换流通，在此不做唯一限定。
以上所揭露的仅为本申请较佳实施例而已，当然不能以此来限定本申请之权利范围，因此依本申请权利要求所作的等同变化，仍属本申请所涵盖的范围。

Claims (13)

  1. 一种扬声器单体，其特征在于，包括：
    盆架；
    磁路组件，固定于所述盆架内，所述磁路组件具有磁间隙；以及
    振动组件，包括音圈、第一振膜以及球顶，所述第一振膜分别连接于所述盆架和所述球顶，所述音圈的一端连接于所述球顶并至少部分悬置于所述磁间隙内，以将所述盆架的内部空间分隔为位于所述音圈内侧的内腔体以及位于所述音圈外侧的外腔体，所述磁路组件用于驱动所述音圈移动以使所述第一振膜发声；其中，所述球顶上开设有分别连通于所述内腔体和所述外腔体的连接槽。
  2. 根据权利要求1所述的扬声器单体，其特征在于，所述球顶开设有多个所述连接槽。
  3. 根据权利要求2所述的扬声器单体，其特征在于，所述连接槽的数目为两个，且两个所述连接槽对称设于所述球顶的相对两侧。
  4. 根据权利要求1所述的扬声器单体，其特征在于，所述振动组件还包括第二振膜，所述第二振膜分别连接于所述音圈和所述盆架，并位于所述音圈远离所述球顶的一端；所述第二振膜至少部分悬置于所述外腔体内。
  5. 根据权利要求4所述的扬声器单体，其特征在于，所述振动组件还包括柔性连接件，所述柔性连接件分别固定于所述音圈和所述盆架，且所述柔性连接件设于所述第二振膜远离所述球顶的一侧。
  6. 根据权利要求1所述的扬声器单体，其特征在于，所述第一振膜沿所述音圈的移动方向在所述球顶上的正投影覆盖所述连接槽。
  7. 根据权利要求6所述的扬声器单体，其特征在于，所述第一振膜具有相接的固定部、折环部和连接部，所述固定部连接于所述盆架，所述连接部连接于所述球顶，且所述连接部沿所述音圈的移动方向在所述球顶上的正投影覆盖所述连接槽。
  8. 根据权利要求7所述的扬声器单体，其特征在于，所述连接部包括覆盖部以及环形的连接部本体，所述折环部连接于所述连接部本体的外侧，所述覆盖部位于所述连接部本体的内侧，所述连接槽沿所述音圈的移动方向贯穿所述球顶，所述覆盖部盖设于所述连接槽远离所述音圈的一侧。
  9. 根据权利要求1所述的扬声器单体，其特征在于，所述磁路组件包括磁碗、主磁钢和副磁钢，所述磁碗固定于所述盆架上，所述主磁钢和所述副磁钢均固定于所述磁碗上，所述副磁钢环绕所述主磁钢并与其间隔设置，以形成所述磁间隙。
  10. 根据权利要求9所述的扬声器单体，其特征在于，所述副磁钢包括两个第一副磁钢和两个第二副磁钢，两个所述第一副磁钢和两个所述第二副磁钢均对称设于所述主磁钢的相对两侧，其中一个所述第一副磁钢朝向另一个所述第一副磁钢的方向垂直于其中一个所述第二副磁钢朝向另一个所述第二副磁钢的方向。
  11. 根据权利要求1所述的扬声器单体，其特征在于，所述盆架上开设有定位槽，所述磁路组件具有定位凸部，所述定位凸部嵌设于所述定位槽内。
  12. 根据权利要求1所述的扬声器单体，其特征在于，所述音圈沿其移动方向在所述球顶上的正投影至少部分落入所述连接槽的范围内。
  13. 一种电子设备，其特征在于，包括权利要求1-12任意一项所述的扬声器单体。
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CN115361607B (zh) * 2022-08-13 2023-08-25 常州诚铭电子科技有限公司 一种自动上料的智能门铃扬声器装配系统及其装配方法
WO2024036714A1 (zh) * 2022-08-19 2024-02-22 瑞声光电科技(常州)有限公司 发声器件

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