WO2020133319A1 - 一种扬声器 - Google Patents

一种扬声器 Download PDF

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Publication number
WO2020133319A1
WO2020133319A1 PCT/CN2018/125242 CN2018125242W WO2020133319A1 WO 2020133319 A1 WO2020133319 A1 WO 2020133319A1 CN 2018125242 W CN2018125242 W CN 2018125242W WO 2020133319 A1 WO2020133319 A1 WO 2020133319A1
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WO
WIPO (PCT)
Prior art keywords
frame
magnetic
side wall
circuit system
magnetic circuit
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Ceased
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PCT/CN2018/125242
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English (en)
French (fr)
Inventor
信星星
顾小江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
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AAC Acoustic Technologies Shenzhen Co Ltd
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Priority to PCT/CN2018/125242 priority Critical patent/WO2020133319A1/zh
Publication of WO2020133319A1 publication Critical patent/WO2020133319A1/zh
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the invention relates to the field of electroacoustics, in particular to a speaker.
  • the existing loudspeaker includes a vibration system, a magnetic circuit system, and a basin frame.
  • the basin frame is provided with a receiving cavity.
  • the vibration system and the magnetic circuit system are accommodated in the receiving cavity.
  • the axial end of the receiving cavity is provided with a gap.
  • the magnetic circuit system includes The magnetic frame, when the magnetic frame and the pot frame are connected, only the gap of the axial end of the pot frame is filled with glue to fix the magnetic frame and the pot frame together. This way of bonding the magnetic frame and the pot frame makes the two on the axis The adhesion in the direction is poor. When the speaker falls, the magnetic frame is easy to fall out of the basin.
  • the object of the present invention is to provide a loudspeaker with stable installation.
  • a loudspeaker includes a vibration system, a magnetic circuit system, and a basin frame with a receiving cavity.
  • the vibration system and the magnetic circuit system are both contained in the receiving cavity.
  • the magnetic circuit system includes a magnetic frame
  • the basin frame includes Surrounding the side wall forming the receiving cavity, the side wall has an inner surface close to the magnetic circuit system and an outer surface opposite to the inner surface, the side wall is provided with a number of through the inner surface and The through-groove on the outer surface is used for filling adhesive to fix and connect the magnetic frame and the side wall.
  • a number of notches are provided on the side of the axial end of the side wall facing the magnetic frame for filling adhesive therein to further fixedly connect the magnetic frame and the side wall .
  • At least a part of the notch overlaps with a part of the through groove in the axial direction, so that the adhesive filled through the overlapped notch and the through groove is connected.
  • the number of the through grooves is eight
  • the side wall includes four connecting plates connected in sequence, and each of the connecting plates is provided with two through grooves.
  • connection plates are respectively two oppositely arranged first connection plates and two oppositely arranged second connection plates, the length of the first connection plate is greater than the length of the second connection plate , The number of the notches is six, two of the six notches are respectively provided on the two second connection plates, and the remaining four notches are respectively provided on the two first connection plates .
  • the magnetic circuit system further includes a magnetic steel housed in the magnetic frame and a pole core provided on the magnetic steel, the vibration system includes a diaphragm for vibrating sound and the A diaphragm is connected to a coil for driving the vibration of the diaphragm, and the diaphragm is connected to the basin frame.
  • the basin frame includes a frame and a bottom cover, the frame is mounted on the bottom cover and surrounds the bottom cover to form the receiving cavity, and the plurality of through slots and the plurality of notches are all Set on the frame.
  • the beneficial effect of the present invention is that the speaker of the present invention is provided with a plurality of through grooves penetrating the inner surface and the outer surface of the side wall of the basin frame for filling with adhesive to enhance the space between the basin frame and the magnetic frame
  • the adhesive strength in the axis direction can reduce the risk of the magnetic frame falling out of the basin stand when the speaker is dropped.
  • FIG. 1 is a three-dimensional perspective view of a speaker provided by an embodiment of the present invention.
  • FIG. 2 is a schematic exploded perspective view of a speaker provided by an embodiment of the present invention.
  • FIG. 3 is a perspective view of another perspective of a speaker provided by an embodiment of the present invention.
  • Fig. 4 is a cross-sectional view taken along line A-A in Fig. 3.
  • FIG. 5 is a perspective view of a frame provided by an embodiment of the present invention.
  • FIG. 6 is a perspective view of a magnetic circuit system provided by an embodiment of the invention.
  • an element when an element is referred to as being “fixed” or “disposed” on another element, the element can be directly on the other element or there can be a centering element at the same time.
  • an element When an element is said to "connect” another element, it may be directly connected to the other element or there may be a center element at the same time.
  • the speaker 1 includes a basin frame 10, a magnetic circuit system 20 and a vibration system 30.
  • the basin frame 10 includes a frame 11 and a bottom cover connected to the bottom of the frame 11 12.
  • the frame 11 and the bottom cover 12 form an accommodating cavity 13, and the magnetic circuit system 20 and the vibration system 30 are accommodated in the accommodating cavity 13.
  • the top, bottom, top, and bottom in the embodiments of the present invention will be described based on the orientation shown in FIGS. 1 to 4.
  • the magnetic circuit system 20 includes a bowl-shaped magnetic frame 21, a magnetic steel 22 accommodated in the magnetic frame 21, and a pole core 23 disposed on the magnetic steel 22
  • the vibration system 30 includes a diaphragm 32 for vibrating sound and a coil 31 connected to the diaphragm 32 at one end to drive the diaphragm 32 to vibrate.
  • the other end of the coil 31 is partially accommodated in the magnetic frame 21, the magnetic steel 22 and the pole core In the magnetic gap formed by 23, when the coil 31 is fed with an alternating current, the coil 31 in the magnetic gap will move due to the action of the magnetic field, causing the diaphragm 32 to vibrate up and down.
  • the diaphragm 32 vibrates The air in the space above the membrane 32 will be compressed or expanded, resulting in the generation of sound.
  • the frame 11 is square, and the frame 11 includes four connecting plates 111 connected end to end.
  • the connecting plate 111 surrounds and forms the side wall 131 of the receiving cavity 13.
  • the side wall 131 has a magnetic circuit system 20.
  • the side wall 131 of the receiving cavity 13 is provided with a plurality of through slots 1313 penetrating the inner surface 1311 and the outer surface 1312.
  • the number of the through slots 1313 can be adjusted according to actual needs to ensure that the magnetic frame 21 and the side wall 131 will not separate after being dropped.
  • the frame 11 has a generally rectangular frame shape. Therefore, the four connecting plates 111 are defined as two oppositely disposed first connecting plates 1111 and two oppositely disposed second connecting plates 1112. The second connecting plates The length of 1112 is less than the length of the first connecting plate 1111. In the embodiment of the present invention, the number of through slots 1313 is eight. Each connecting plate 111 is provided with two through slots 1313. The two through slots 1313 are circumferentially spaced. The size of the through slot 1313 can be set according to actual conditions. In the embodiment of the present invention, the through slot 1313 has a long and narrow strip shape.
  • the magnetic frame 21 includes four side plates 211 and a top plate 212.
  • the four side plates 211 are disposed at the bottom of the top plate 212 at intervals, and the four side plates 211 are respectively connected to the four edges of the top plate 212.
  • the top of the magnetic steel 22 is connected to the bottom of the top plate 212.
  • the two ends of the magnetic steel 22 are connected to the top plate 212 and the pole core 23 respectively.
  • the magnetic steel 22 is made of a permanent magnetic material and the pole core 23 is made of a magnetic conductive material The pole core 23 is spaced from the frame 11, and the magnetic gap is located between the side plate 211 of the magnetic frame 21 and the magnetic steel 22 and the pole core 23.
  • the four side plates 211 can be defined as two first side plates 2111 and two second side plates 2112, respectively.
  • the length of the second side plate 2112 is shorter than the length of the first side plate 2111.
  • the outer sides of the side plates 2111 respectively correspond to the inner sides of the two first connecting plates 1111 on the frame 11, the outer sides of the two second side plates 2112 respectively correspond to the inner sides of the two second connecting plates 1112, and the receiving cavity 13
  • the top of the side wall 131 that is, the top of the first connecting plate 1111 and the top of the second connecting plate 1112 are substantially flush with the top surface of the top plate 212 of the magnetic frame 21, and several through slots 1313 correspond to the respective side plates 211.
  • a number of notches are provided on the side of the side wall 131 of the frame 11 away from the axial end of the bottom cover 12 toward the magnetic frame 21 1314, which is used to fill the adhesive such as glue to further fix and connect the magnetic frame 21 and the frame 11.
  • the number of notches 1314 can be set according to actual needs, so that the magnetic frame 21 is not easy to be removed from the basin frame 10
  • the number of notches 1314 in the present invention is preferably six, of which two notches 1314 are respectively disposed on the two second connecting plates 1112, and the other four notches 1314 are equally distributed on the two first
  • the size of the notch 1314 on the connecting plate 1111 can be limited according to the actual situation.
  • the position of the notch 1314 on the first connecting plate 1111 corresponds to the position of the through slot 1313 in the axial direction, so that the adhesive injected from the notch 1314 and the through slot 1313 can be fixedly connected together, thereby further lifting the frame 11 Connection strength with the magnetic frame 21.
  • the outer peripheral portion of the diaphragm 32 is installed between the frame 11 and the bottom cover 12.
  • the outer peripheral portion of the diaphragm 32 is provided with a number of first perforations.
  • the frame 11 faces the bottom cover 12.
  • a plurality of connecting protrusions 1113 are provided on one side
  • the bottom cover 12 is a square frame structure
  • a plurality of second through holes 121 are correspondingly provided on the bottom cover 12, and the connecting protrusions 1113 pass through the first through holes and the second After the through hole 121 is fixedly connected with a bolt, the diaphragm 32 is fixed on the basin frame 10.
  • Two holding pieces 14 are also provided on the frame 11 to facilitate the installation of the speaker 1 on an external device.

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

Abstract

本发明提供一种扬声器，包括振动系统、磁路系统及具有收容腔的盆架，振动系统和磁路系统都收容于收容腔内，磁路系统包括磁框，盆架包括围绕形成收容腔的侧壁，侧壁具有靠近磁路系统的内表面及与内表面相背设置的外表面，侧壁设有若干贯穿内表面与外表面的通槽，以用于填充粘接剂从而固定连接磁框与侧壁。本发明的扬声器通过在盆架的侧壁上开设若干贯穿侧壁内表面与外表面的通槽，以用于填充粘接剂，增强盆架与磁框之间在轴线方向上的粘合强度，可以降低扬声器跌落时磁框从盆架内摔出的风险。

Description

一种扬声器 【技术领域】
本发明涉及电声领域，尤其涉及一种扬声器。
【背景技术】
现有扬声器包括振动系统、磁路系统和盆架，盆架上设有收容腔，振动系统和磁路系统都容纳于收容腔内，收容腔的轴向端部设有缺口，磁路系统包括磁框，磁框与盆架在连接时仅靠盆架轴向端部的缺口注胶来将磁框与盆架固定在一起，此种磁框与盆架的粘合方式使得二者在轴线方向上粘合力差，当扬声器发生跌落时，磁框容易从盆架内摔出。
因此，有必要提供一种安装稳固的扬声器。
【发明内容】
本发明的目的在于提供一种安装稳固的扬声器。
本发明的技术方案如下：
一种扬声器，包括振动系统、磁路系统及具有收容腔的盆架，所述振动系统和磁路系统都收容于所述收容腔内，所述磁路系统包括磁框，所述盆架包括围绕形成所述收容腔的侧壁，所述侧壁具有靠近所述磁路系统的内表面及与所述内表面相背设置的外表面，所述侧壁设有若干贯穿所述内表面与所述外表面的通槽，以用于填充粘接剂从而固定连接所述磁框与侧壁。
作为一种改进，所述侧壁的轴向端部朝向所述磁框的一侧设有若干缺口，以用于填充粘接剂于其内从而进一步固定连接所述磁框与所述侧壁。
作为一种改进，至少部分缺口与部分通槽在轴向上重叠，从而使得经由该重叠的缺口和通槽填充的粘接剂连接。
作为一种改进，所述通槽的数量为八个，所述侧壁包括四个依次连接的连接板，每个所述连接板均设有两个所述通槽。
作为一种改进，四个所述连接板分别为两个相对设置的第一连接板以及两个相对设置的第二连接板，所述第一连接板的长度大于所述第二连接板的长度，所述缺口的数量为六个，六个所述缺口中的两个分别设置于两个所述第二连接板上，剩余四个所述缺口分别设置于两个所述第一连接板上。
作为一种改进，所述磁路系统还包括收容于所述磁框中的磁钢及设置于所述磁钢上的极芯，所述振动系统包括用于振动发声的振膜以及与所述振膜相连接以驱动所述振膜振动的线圈，所述振膜与所述盆架连接。
作为一种改进，所述盆架包括框架及底盖，所述框架安装于所述底盖上并与所述底盖围合形成所述收容腔，若干所述通槽和若干所述缺口都设置于所述框架上。
本发明的有益效果在于：本发明的扬声器通过在盆架的侧壁上开设若干贯穿侧壁内表面与外表面的通槽，以用于填充粘接剂，增强盆架与磁框之间在轴线方向上的粘合强度，可以降低扬声器跌落时磁框从盆架内摔出的风险。
【附图说明】
图1为本发明实施例提供的扬声器的一个视角的立体图。
图2为本发明实施例提供的扬声器的立体分解示意图。
图3为本发明实施例提供的扬声器的另一个视角的立体图。
图4为沿图3中A-A线的剖视图。
图5为本发明实施例提供的框架的立体图。
图6为发明实施例提供的磁路系统的立体图。
图中：1、扬声器；10、盆架；11、框架；111、连接板；1111、第一连接板；1112、第二连接板；1113、连接凸柱；12、底盖；121、第二穿孔；13、收容腔；131、侧壁；1311、内表面；1312、外表面；1313、通槽；1314、缺口；14、夹持件；20、磁路系统；21、磁框；211、侧板；2111、第一侧板；2112、第二侧板；212、顶板；22、磁钢；23、极芯；30、振动系统；31、线圈；32、振膜。
【具体实施方式】
下面结合附图和实施方式对本发明作进一步说明。
需要说明的是，本发明实施例中所有方向性指示(诸如上、下、内、外、顶部、底部……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
如图1至图4所示，依照本发明一实施例的扬声器1包括盆架10、磁路系统20及振动系统30，所述盆架10包括框架11及与框架11的底部连接的底盖12，框架11与底盖12围合形成一个收容腔13，磁路系统20和振动系统30都容纳于该收容腔13内。本发明实施例中的上、下、顶部、底部以附图1至4所示的方位为基准进行说明。
请一并参阅图1和图4，本发明中，磁路系统20包括如碗状的磁框21、收容于磁框21中的磁钢22以及设置于所述磁钢22上的极芯23，振动系统30包括用于振动发声的振膜32以及一端与振膜32相连接以驱动振膜32振动的线圈31，线圈31的另一端其部分容纳在磁框21、磁钢22及极芯23形成的磁间隙中，当线圈31通入交变电流时，处在磁间隙中的线圈31会因为磁场的作用产生运动，带动振膜32上下振动，振膜32在振动的过程中，振膜32上方空间内的空气会被压缩或扩张，从而导致声音的产生。
如图5所示，优选地，框架11为方形，框架11包括四个首尾依次连接的连接板111，连接板111围合形成上述收容腔13的侧壁131，侧壁131具有靠近磁路系统20上磁框21的内表面1311及与内表面1311相背设置的外表面1312，收容腔13的侧壁131设有若干贯穿内表面1311与外表面1312的通槽1313，该通槽1313以用于填充粘接剂如胶水从而固定连接所 述磁框21与侧壁131，该通槽1313的数量可以根据实际需要调整，以确保磁框21与侧壁131被摔后不会分离。
本发明中框架11大致呈长方形的框体状，因此，将四个连接板111分别定义为两个相对设置的第一连接板1111以及两个相对设置的第二连接板1112，第二连接板1112的长度小于第一连接板1111的长度，本发明实施例中通槽1313的数量为八个，每一个连接板111上都设置有两个通槽1313，两通槽1313沿周向间隔设置，通槽1313的大小可根据实际情况来设定，本发明实施例中，通槽1313为狭长的条形状。
如图6所示，磁框21包括四个侧板211及一个顶板212，四个侧板211间隔设置于顶板212的底部，且四个侧板211分别与顶板212的四个边缘相连接，磁钢22的顶部与顶板212的底部连接，本发明实施例中磁钢22的两端分别与顶板212和极芯23连接，磁钢22由永磁材料制成，极芯23由导磁材料制成，极芯23与框架11间隔设置，磁间隙位于磁框21的侧板211和磁钢22与极芯23之间。本发明中四个侧板211可分别定义为两个第一侧板2111和两个第二侧板2112，第二侧板2112的长度小于第一侧板2111的长度，其中，两个第一侧板2111外侧面分别对应朝向框架11上的两个第一连接板1111的内侧面，两个第二侧板2112外侧面分别对应朝向两个第二连接板1112的内侧面，收容腔13中侧壁131的顶端也即第一连接板1111的顶端和第二连接板1112的顶端均与磁框21上顶板212的顶面基本平齐，若干个通槽1313都分别对应于各自的侧板211。
请参阅图5，同时，本发明为了使框架11与磁框21之间连接更稳固，在框架11的侧壁131远离底盖12的轴向端部朝向磁框21的一侧设有若干缺口1314，以用于填充粘接剂如胶水于其内从而进一步固定连接所述磁框21与框架11，缺口1314的数量的可根据实际需要自行设定，以磁框21不易从盆架10内摔出来为准，本发明中缺口1314的数量优选为六个，其中两个缺口1314分别设置于两个第二连接板1112上，其它四个缺口1314分别等均分的设置于两个第一连接板1111上，缺口1314的大小可根据实际情况自行限定。优选地，第一连接板1111上缺口1314的位置在轴向上与 通槽1313的位置对应，这样，从缺口1314和通槽1313注入的粘接剂可固定连接在一起，从而进一步提升框架11与磁框21之间的连接强度。
如图2和图6所示，振膜32的外周缘部分安装于框架11与底盖12之间，振膜32的外周缘部分开设有若干个第一穿孔，框架11之朝向底盖12的一侧凸设有若干个连接凸柱1113，底盖12为方形框体结构，底盖12上相对应的设有若干个第二穿孔121，连接凸柱1113依次穿过第一穿孔及第二穿孔121后与螺栓固定连接，从而将振膜32固定于盆架10上。
框架11上还设有两个夹持件14，以便于将扬声器1安装于外部设备上。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (7)

  1. 一种扬声器，包括振动系统、磁路系统及具有收容腔的盆架，所述振动系统和磁路系统都收容于所述收容腔内，其特征在于，所述磁路系统包括磁框，所述盆架包括围绕形成所述收容腔的侧壁，所述侧壁具有靠近所述磁路系统的内表面及与所述内表面相背设置的外表面，所述侧壁设有若干贯穿所述内表面与所述外表面的通槽，以用于填充粘接剂从而固定连接所述磁框与侧壁。
  2. 根据权利要求1所述的扬声器，其特征在于：所述侧壁的轴向端部朝向所述磁框的一侧设有若干缺口，以用于填充粘接剂于其内从而进一步固定连接所述磁框与所述侧壁。
  3. 根据权利要求2所述的扬声器，其特征在于：至少部分缺口与部分通槽在轴向上重叠，从而使得经由该重叠的缺口和通槽填充的粘接剂连接。
  4. 根据权利要求2所述的扬声器，其特征在于：所述通槽的数量为八个，所述侧壁包括四个依次连接的连接板，每个所述连接板均设有两个所述通槽。
  5. 根据权利要求4所述的扬声器，其特征在于：四个所述连接板分别为两个相对设置的第一连接板以及两个相对设置的第二连接板，所述第一连接板的长度大于所述第二连接板的长度，所述缺口的数量为六个，六个所述缺口中的两个分别设置于两个所述第二连接板上，剩余四个所述缺口分别设置于两个所述第一连接板上。
  6. 根据权利要求1-5任一项所述的扬声器，其特征在于：所述磁路系统还包括收容于所述磁框中的磁钢及设置于所述磁钢上的极芯，所述振动系统包括用于振动发声的振膜以及与所述振膜相连接以驱动所述振膜振动的线圈，所述振膜与所述盆架连接。
  7. 根据权利要求1-5任一项所述的扬声器，其特征在于：所述盆架包括框架及底盖，所述框架安装于所述底盖上并与所述底盖围合形成所述收容腔，若干所述通槽和若干所述缺口都设置于所述框架上。
PCT/CN2018/125242 2018-12-29 2018-12-29 一种扬声器 Ceased WO2020133319A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202949564U (zh) * 2012-12-14 2013-05-22 歌尔声学股份有限公司 扬声器
CN205123993U (zh) * 2015-11-30 2016-03-30 歌尔声学股份有限公司 一种扬声器
CN207968885U (zh) * 2018-01-04 2018-10-12 瑞声科技(新加坡)有限公司 扬声器
CN207968870U (zh) * 2018-03-30 2018-10-12 歌尔科技有限公司 一种扬声器
CN208190904U (zh) * 2018-01-04 2018-12-04 瑞声科技(新加坡)有限公司 扬声器单体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202949564U (zh) * 2012-12-14 2013-05-22 歌尔声学股份有限公司 扬声器
CN205123993U (zh) * 2015-11-30 2016-03-30 歌尔声学股份有限公司 一种扬声器
CN207968885U (zh) * 2018-01-04 2018-10-12 瑞声科技(新加坡)有限公司 扬声器
CN208190904U (zh) * 2018-01-04 2018-12-04 瑞声科技(新加坡)有限公司 扬声器单体
CN207968870U (zh) * 2018-03-30 2018-10-12 歌尔科技有限公司 一种扬声器

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