WO2021000215A1 - Sound generation device - Google Patents

Sound generation device Download PDF

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Publication number
WO2021000215A1
WO2021000215A1 PCT/CN2019/094163 CN2019094163W WO2021000215A1 WO 2021000215 A1 WO2021000215 A1 WO 2021000215A1 CN 2019094163 W CN2019094163 W CN 2019094163W WO 2021000215 A1 WO2021000215 A1 WO 2021000215A1
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WO
WIPO (PCT)
Prior art keywords
sound
basin frame
diaphragm
upper cover
cover plate
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/094163
Other languages
French (fr)
Chinese (zh)
Inventor
陈志臣
沈凯华
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
AAC Technologies Pte Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Technologies Pte Ltd
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 AAC Acoustic Technologies Shenzhen Co Ltd, AAC Technologies Pte Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Priority to PCT/CN2019/094163 priority Critical patent/WO2021000215A1/en
Priority to CN201921174462.XU priority patent/CN211019215U/en
Publication of WO2021000215A1 publication Critical patent/WO2021000215A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04R9/02—Details
    • 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

Definitions

  • This application relates to the technical field of acoustic equipment, in particular to a sound generating device.
  • the principle of the existing sound device to convert audio electrical signals into sound is roughly as follows: vibrating the diaphragm according to the change of the audio electrical signal, and radiate it out in the form of sound waves, thereby pushing air to vibrate the eardrum of a person, making the person feel the sound.
  • the commonly used assembly method is: positioning the long and wide sides of the basin frame, fixing the basin frame in the shell of the sounding device through two glues or injection-molded silica gel, and at the same time on the side of the basin frame, thus forming two independent sounding devices.
  • this method has the problems of poor sealing consistency and complicated procedures.
  • the purpose of this application is to provide a sounding device, which aims to solve the problem of poor sealing consistency of the sounding device and complicated processes caused by the sealing and fixing of the diaphragm on the basin frame by means of dispensing or injection-molded silicone seal in the prior art. problem.
  • a sound generating device comprising an upper cover plate, a lower cover plate connected with the upper cover plate to form an accommodation space, and a speaker unit assembled in the accommodation space;
  • the speaker unit includes a basin frame and a diaphragm fixed on the basin frame;
  • the inner side of the upper cover plate is provided with a mounting structure for installing the basin frame. After the upper cover plate is installed on the basin frame, the diaphragm divides the accommodation space into a first sound cavity and a second sound cavity. Cavity
  • the diaphragm includes a sealing portion extending to the side of the basin frame and in contact with the mounting structure;
  • the sealing portion is squeezed by the basin frame and the upper cover plate to isolate the first sound cavity from the second sound cavity.
  • the thickness of the sealing portion is greater than the thickness of the diaphragm that does not extend to the side of the frame.
  • the position where the diaphragm extends to the side of the basin frame further includes a bent portion
  • the sealing part is in contact with the bending part.
  • the upper cover plate is also provided with a sound outlet communicating with the first sound cavity.
  • the material of the diaphragm is a polymer material.
  • the beneficial effect of the present application lies in the extension of the speaker unit, the diaphragm covering the area of the basin frame, so that it is packaged to the side of the basin frame to form a sealing part, which is fixed around the basin frame, and when the upper cover is installed on the basin frame When up, the upper cover and the basin frame both exert pressure on the sealing part.
  • the diaphragm usually has strong toughness and good consistency, so when it is squeezed, it can seal the speaker
  • the side of the single body that is, the gap between the side of the basin frame and the installation structure, separates the accommodation space formed after the upper cover and the lower cover are connected into a first sound cavity and a second sound cavity, realizing the front and rear sound chambers of the sound device Isolation.
  • This application expands the diaphragm structure on the basic structure of the sound device.
  • the speaker unit assembled in the containing space is sealed by the sealing part
  • the side surface of the sound generating device realizes the sealing isolation of the two sound chambers before and after the sound generating device, so that the product has good sealing consistency, simple procedures and high processing efficiency.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a sound generating device according to an embodiment of the application
  • FIG. 2 is a schematic diagram of an exploded structure of a sound generating device according to an embodiment of the application
  • Figure 3 is a cross-sectional view in the direction of A-A in Figure 1;
  • Fig. 4 is a partial schematic diagram of A in Fig. 3;
  • FIG. 5 is a schematic diagram of a three-dimensional structure of a diaphragm according to an embodiment of the application.
  • FIG. 1 it is a sound emitting device 100 provided by the first embodiment of this application.
  • the sound generating device 100 includes an upper cover plate 10, a lower cover plate 20 connected with the upper cover plate 10 to form an accommodation space, and a speaker unit 30 assembled in the accommodation space;
  • the speaker unit 30 includes a basin The frame 31 and the diaphragm 32 fixed on the basin frame 31; the inner side of the upper cover plate 10 is provided with a mounting structure 11 for installing the basin frame 31, the basin frame 31 is installed on the upper cover plate 10, and the diaphragm 32 divides the accommodating space into the first A sound cavity and a second sound cavity, wherein the cavity between the upper cover 10 and the diaphragm 32 constitutes the first sound cavity, and the cavity between the lower cover 20 and the diaphragm 32 constitutes the second sound cavity .
  • the material of the diaphragm can be a polymer material.
  • the polymer material is silica gel.
  • the inner side of the upper cover plate 10 is provided with a mounting structure 11 for installing the basin frame 31.
  • the upper cover plate 10 and the lower cover plate 20 constitute the sound device 100
  • the sounding function structure of the sounding device 100 is provided in the basin frame 31.
  • the diaphragm 32 is installed on the basin frame 31 and placed between the basin frame 31 and the upper cover plate 10, and includes a sealing portion 321 extending to the side of the basin frame 31.
  • the part 321 is placed between the mounting structure 11 and the basin frame 31, and is squeezed by an external force.
  • the sealing part 321 is close to the side of the mounting structure 11 and the basin frame 31.
  • the first sound cavity is isolated from the second sound cavity formed by the lower cover 20 and the diaphragm 32.
  • the installation structure for installing the basin frame is stepped.
  • the thickness of the sealing portion 321 is greater than the thickness of the portion of the diaphragm 32 that does not extend to the side of the basin frame 31. By thickening the sealing portion 321, it can be ensured that it can seal the basin frame 31 and the upper cover 10 The gap therebetween, thereby enhancing the sealing effect of the sealing portion 321.
  • the position where the diaphragm 32 extends to the side of the basin frame 31 further includes a bending portion 322, and the sealing portion 321 is connected to the bending portion 322.
  • the bent portion 322 can be attached to the side surface of the basin frame 31, or can be attached to the side of the basin frame 31 where the diaphragm 32 is installed.
  • FIG. 5 the embodiment of the present application only exemplarily shows the bending
  • the folding part 322 has a structural relationship with the basin frame 31. When the upper cover plate 10 is installed on the basin frame 31, the bending part 322 also reduces the friction between the sealing part 321 and the upper cover plate 10, and reduces the vibration film 32. Wear during the assembly process.
  • one sound cavity of the sounding device is used to transmit sound, and the other sound cavity is used for sounding. Therefore, the front and rear sound cavities of the sounding device need to be isolated.
  • the first sound cavity formed by the upper cover 10 and the diaphragm 32 is used to transmit sound. Therefore, please refer to FIGS. 1 and 2.
  • the upper cover 10 of the embodiment of the present application is also provided with There is a sound outlet 12 communicating with the first sound cavity.
  • the basin frame and the diaphragm are the necessary structures of the sound generating device, which can be combined with other structures of the sound generating device to realize the sound function of the sound generating device.
  • the embodiment of the present application also shows other structures of the speaker unit 30 in the generator 100.
  • the speaker unit 30 also includes a vibration system 33 and a vibration system fixed in the frame 31.
  • the magnetic circuit system 34, the vibration system 33 includes the diaphragm 32 in the present application, the dome 331 placed on the diaphragm 32, and the voice coil 332 that drives the diaphragm 32 to vibrate, where the magnetic circuit system 34 is used for the voice coil 332 A drive is provided to vibrate the voice coil 332, and then drive the diaphragm 32 to vibrate to generate sound, which is transmitted through the sound outlet 12, thereby completing the sound function of the speaker unit 30.
  • the magnetic circuit system 34 and the voice coil 332 in the vibration system 33 are located in the second sound cavity formed by the lower cover 20 and the diaphragm 32, and the dome 331 in the vibration system 33 is formed by the upper cover 10 and the diaphragm 32. In a tone cavity.
  • the material of the dome is an alloy or a composite material
  • the alloy may be an aluminum alloy, a titanium alloy, a magnesium alloy, a titanium alloy, etc.
  • the composite material is a composite material.
  • the composite material is an organic fiber composite material or an elastic fiber composite material.
  • the sound device extends the area of the speaker unit, the diaphragm covers the area of the basin frame, so that it is packaged on the side of the basin frame to form a sealing part, which is fixed around the basin frame, When the cover plate is installed on the basin frame, both the upper cover plate and the basin frame will exert pressure on the sealing part.
  • the sealing part is a part of the diaphragm
  • the diaphragm usually has strong toughness and good consistency, so when it is squeezed
  • the side of the speaker unit that is, the gap between the side of the basin frame and the installation structure, can be sealed, and the accommodation space formed after the upper cover plate and the lower cover plate are connected can be isolated into the first sound cavity and the second sound cavity, so as to realize The isolation of the front and rear sound chambers in the sound device.
  • This application expands the diaphragm structure on the basic structure of the sound device.
  • the speaker unit assembled in the containing space is sealed by the sealing part
  • the side surface of the sound generating device realizes the sealing isolation of the two sound chambers before and after the sound generating device, so that the product has good sealing consistency, simple procedures and high processing efficiency.

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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)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

The present application is applicable to the field of electroacoustic transducers, and provides a sound generation device. The sound generation device comprises an upper cover plate, a lower plate connected to the upper plate to form an accommodation space, and a loudspeaker unit assembled in the accommodation space. The loudspeaker unit comprises a basket and a vibration diaphragm fixed thereon. A mounting structure for mounting the basket is provided at the inner side of the upper cover plate. The basket is disposed on the mounting structure. The vibration diaphragm divides the accommodation space into a first sound cavity and a second sound cavity, and comprises a sealing portion extending to the side surface of the basket and contacting with the mounting structure. The sealing portion is squeezed by the basket and the upper cover plate to isolate the first sound cavity from the second sound cavity. According to the present application, the sealing portion is used to seal the side surface of the loudspeaker unit assembled in the accommodation space so as to sealably isolate front and rear sound cavities of the sound generation device. The seal consistency is good, the process is simple, and the processing efficiency is high.

Description

一种发声装置A sounding device 技术领域Technical field

本申请涉及声学设备技术领域，尤其涉及一种发声装置。This application relates to the technical field of acoustic equipment, in particular to a sound generating device.

背景技术Background technique

现有的发声装置将音频电信号转换为声音的原理大致为：根据音频电信号的变化振动振膜，以声波方式辐射出去，从而推动空气以振动人的耳膜，使人感觉到声音。在装配过程中，需要以振膜为界，将发声装置分为两个音腔，一个音腔用于信号转换；另一个音腔用于向外界传递声音。The principle of the existing sound device to convert audio electrical signals into sound is roughly as follows: vibrating the diaphragm according to the change of the audio electrical signal, and radiate it out in the form of sound waves, thereby pushing air to vibrate the eardrum of a person, making the person feel the sound. In the assembly process, it is necessary to divide the sounding device into two sound cavities with the diaphragm as the boundary, one sound cavity is used for signal conversion; the other sound cavity is used to transmit sound to the outside world.

目前，常用的装配方法为：以盆架的长宽边定位，通过两道胶水或注塑硅胶，将盆架固定在发声装置的外壳中，同时盆架侧面，从而在发声装置中形成两个独立的音腔结构，然而，该种方式具有密封一致性差及工序复杂的问题。At present, the commonly used assembly method is: positioning the long and wide sides of the basin frame, fixing the basin frame in the shell of the sounding device through two glues or injection-molded silica gel, and at the same time on the side of the basin frame, thus forming two independent sounding devices. However, this method has the problems of poor sealing consistency and complicated procedures.

技术问题technical problem

本申请的目的在于提供一种发声装置，旨在解决现有技术中通过点胶或注塑硅胶密封等方式将振膜密封固定在盆架上，所造成的发声装置的密封一致性差、工序复杂的问题。The purpose of this application is to provide a sounding device, which aims to solve the problem of poor sealing consistency of the sounding device and complicated processes caused by the sealing and fixing of the diaphragm on the basin frame by means of dispensing or injection-molded silicone seal in the prior art. problem.

技术解决方案Technical solutions

本申请的技术方案如下：一种发声装置，包括上盖板、与所述上盖板盖接形成收容空间的下盖板以及装配在所述收容空间中的扬声器单体；The technical solution of the present application is as follows: a sound generating device comprising an upper cover plate, a lower cover plate connected with the upper cover plate to form an accommodation space, and a speaker unit assembled in the accommodation space;

所述扬声器单体包括盆架和固定在所述盆架上的振膜；The speaker unit includes a basin frame and a diaphragm fixed on the basin frame;

所述上盖板内侧设有安装所述盆架的安装结构，所述上盖板安装在所述盆架上之后，所述振膜将所述容纳空间分为第一音腔和第二音腔；The inner side of the upper cover plate is provided with a mounting structure for installing the basin frame. After the upper cover plate is installed on the basin frame, the diaphragm divides the accommodation space into a first sound cavity and a second sound cavity. Cavity

所述振膜包括延伸至所述盆架侧面、并与所述安装结构接触的密封部；The diaphragm includes a sealing portion extending to the side of the basin frame and in contact with the mounting structure;

所述密封部受所述盆架和所述上盖板挤压，使所述第一音腔与所述第二音腔隔离。The sealing portion is squeezed by the basin frame and the upper cover plate to isolate the first sound cavity from the second sound cavity.

进一步地，所述密封部的厚度大于未延伸至所述盆架侧面的振膜的厚度。Further, the thickness of the sealing portion is greater than the thickness of the diaphragm that does not extend to the side of the frame.

进一步地，所述振膜延伸至所述盆架侧面的位置还包括弯折部；Further, the position where the diaphragm extends to the side of the basin frame further includes a bent portion;

所述密封部与所述弯折部相接。The sealing part is in contact with the bending part.

进一步地，所述上盖板中还设有与所述第一音腔相通的出声口。Further, the upper cover plate is also provided with a sound outlet communicating with the first sound cavity.

进一步地，所述振膜的材料为高分子材料。Further, the material of the diaphragm is a polymer material.

有益效果Beneficial effect

本申请的有益效果在于：延展了扬声器单体中，振膜覆盖盆架的面积，使其包装到盆架侧面形成密封部，此密封部固定在盆架四周，当上盖板安装在盆架上时，上盖板与盆架均会对密封部施加压力，由于密封部是振膜的一部分，振膜通常具有较强的韧性，一致性好，因此当其受到挤压时，可以密封扬声器单体侧面，即盆架侧面与安装结构之间的缝隙，将上盖板与下盖板盖接后形成的收容空间隔离为第一音腔和第二音腔，实现发声装置中前后音腔的隔离。本申请在发声装置的基础结构上拓展了振膜结构，当上盖板安装在盆架上，并与下盖板盖接构成发声装置时，利用密封部密封装配在收容空间中的扬声器单体的侧面，实现发声装置前后两个音腔的密封隔离，使得产品密封一致性好、工序简单、加工效率高。The beneficial effect of the present application lies in the extension of the speaker unit, the diaphragm covering the area of the basin frame, so that it is packaged to the side of the basin frame to form a sealing part, which is fixed around the basin frame, and when the upper cover is installed on the basin frame When up, the upper cover and the basin frame both exert pressure on the sealing part. Because the sealing part is a part of the diaphragm, the diaphragm usually has strong toughness and good consistency, so when it is squeezed, it can seal the speaker The side of the single body, that is, the gap between the side of the basin frame and the installation structure, separates the accommodation space formed after the upper cover and the lower cover are connected into a first sound cavity and a second sound cavity, realizing the front and rear sound chambers of the sound device Isolation. This application expands the diaphragm structure on the basic structure of the sound device. When the upper cover is installed on the basin frame and connected with the lower cover to form the sound device, the speaker unit assembled in the containing space is sealed by the sealing part The side surface of the sound generating device realizes the sealing isolation of the two sound chambers before and after the sound generating device, so that the product has good sealing consistency, simple procedures and high processing efficiency.

附图说明Description of the drawings

图1为本申请实施例的发声装置的立体结构示意图；FIG. 1 is a schematic diagram of a three-dimensional structure of a sound generating device according to an embodiment of the application;

图2为本申请实施例的发声装置的分解结构示意图；FIG. 2 is a schematic diagram of an exploded structure of a sound generating device according to an embodiment of the application;

图3为图1中A-A方向的剖视图；Figure 3 is a cross-sectional view in the direction of A-A in Figure 1;

图4为图3中A处的局部示意图；Fig. 4 is a partial schematic diagram of A in Fig. 3;

图5为本申请实施例的振膜的立体结构示意图。FIG. 5 is a schematic diagram of a three-dimensional structure of a diaphragm according to an embodiment of the application.

本发明的最佳实施方式The best mode of the invention

如图1所示，为本申请第一实施例提供的发声装置100。As shown in FIG. 1, it is a sound emitting device 100 provided by the first embodiment of this application.

请参阅图1至图5，发声装置100包括上盖板10、与上盖板10盖接形成收容空间的下盖板20以及装配在收容空间中的扬声器单体30；扬声器单体30包括盆架31和固定在盆架31上的振膜32；上盖板10内侧设有安装盆架31的安装结构11，盆架31安装在上盖板10上，振膜32将容纳空间分为第一音腔和第二音腔，其中，由上盖板10与振膜32之间的腔体构成第一音腔，由下盖板20与振膜32之间的腔体构成第二音腔。1 to 5, the sound generating device 100 includes an upper cover plate 10, a lower cover plate 20 connected with the upper cover plate 10 to form an accommodation space, and a speaker unit 30 assembled in the accommodation space; the speaker unit 30 includes a basin The frame 31 and the diaphragm 32 fixed on the basin frame 31; the inner side of the upper cover plate 10 is provided with a mounting structure 11 for installing the basin frame 31, the basin frame 31 is installed on the upper cover plate 10, and the diaphragm 32 divides the accommodating space into the first A sound cavity and a second sound cavity, wherein the cavity between the upper cover 10 and the diaphragm 32 constitutes the first sound cavity, and the cavity between the lower cover 20 and the diaphragm 32 constitutes the second sound cavity .

在具体应用中，振膜的材料可以为高分子材料。In specific applications, the material of the diaphragm can be a polymer material.

在本发明实施例中，高分子材料为硅胶。In the embodiment of the present invention, the polymer material is silica gel.

请参阅图3和图4，上盖板10内侧设有安装盆架31的安装结构11，上盖板10安装在盆架31上后，上盖板10和下盖板20组成发声装置100的外壳部分，盆架31中设置发声装置100的发声功能结构。3 and 4, the inner side of the upper cover plate 10 is provided with a mounting structure 11 for installing the basin frame 31. After the upper cover plate 10 is installed on the basin frame 31, the upper cover plate 10 and the lower cover plate 20 constitute the sound device 100 In the housing part, the sounding function structure of the sounding device 100 is provided in the basin frame 31.

振膜32安装在盆架31上，且置于盆架31和上盖板10之间，包括延伸至盆架31侧面的密封部321，当上盖板10安装在盆架31上时，密封部321置于安装结构11和盆架31之间，且受外力挤压，密封部321紧贴安装结构11和盆架31侧面，此时密封部321使上盖板10与振膜32构成的第一音腔与下盖板20与振膜32构成的第二音腔隔离。The diaphragm 32 is installed on the basin frame 31 and placed between the basin frame 31 and the upper cover plate 10, and includes a sealing portion 321 extending to the side of the basin frame 31. When the upper cover plate 10 is installed on the basin frame 31, it seals The part 321 is placed between the mounting structure 11 and the basin frame 31, and is squeezed by an external force. The sealing part 321 is close to the side of the mounting structure 11 and the basin frame 31. The first sound cavity is isolated from the second sound cavity formed by the lower cover 20 and the diaphragm 32.

在具体应用中，安装盆架的安装结构为台阶状。In specific applications, the installation structure for installing the basin frame is stepped.

其中，请参阅图3和图4，密封部321的厚度大于振膜32中未延伸至盆架31侧面部分的厚度，通过加厚密封部321，确保其能够密封盆架31与上盖板10之间的缝隙，从而加强密封部321的密封效果。3 and 4, the thickness of the sealing portion 321 is greater than the thickness of the portion of the diaphragm 32 that does not extend to the side of the basin frame 31. By thickening the sealing portion 321, it can be ensured that it can seal the basin frame 31 and the upper cover 10 The gap therebetween, thereby enhancing the sealing effect of the sealing portion 321.

其中，请参阅图4和图5，振膜32延伸至盆架31侧面的位置还包括弯折部322，密封部321与弯折部322相接。其中，弯折部322既可以与盆架31的侧面贴合，也可以与盆架31中安装振膜32的一面贴合，在图5中，本申请实施例仅示例性的示出了弯折部322与盆架31的一种结构关系，当上盖板10安装在盆架31上时，弯折部322还减少密封部321与上盖板10之间的磨擦，减小振膜32在装配过程中受到的磨损。4 and FIG. 5, the position where the diaphragm 32 extends to the side of the basin frame 31 further includes a bending portion 322, and the sealing portion 321 is connected to the bending portion 322. Wherein, the bent portion 322 can be attached to the side surface of the basin frame 31, or can be attached to the side of the basin frame 31 where the diaphragm 32 is installed. In FIG. 5, the embodiment of the present application only exemplarily shows the bending The folding part 322 has a structural relationship with the basin frame 31. When the upper cover plate 10 is installed on the basin frame 31, the bending part 322 also reduces the friction between the sealing part 321 and the upper cover plate 10, and reduces the vibration film 32. Wear during the assembly process.

在具体应用中，发声装置的一个音腔用于将声音传递出去，另一个音腔则用于发声，因此发声装置中前后两个音腔需要隔离。In specific applications, one sound cavity of the sounding device is used to transmit sound, and the other sound cavity is used for sounding. Therefore, the front and rear sound cavities of the sounding device need to be isolated.

在本申请实施例中，上盖板10与振膜32构成的第一音腔用于将声音传递出去，因此，请参阅图1和图2，本申请实施例的上盖板10中还设有与第一音腔相通的出声口12。In the embodiment of the present application, the first sound cavity formed by the upper cover 10 and the diaphragm 32 is used to transmit sound. Therefore, please refer to FIGS. 1 and 2. The upper cover 10 of the embodiment of the present application is also provided with There is a sound outlet 12 communicating with the first sound cavity.

在具体应用中，盆架和振膜是发声装置的必要结构，其与发声装置的其他结构结合，方可实现发声装置的发声功能。In specific applications, the basin frame and the diaphragm are the necessary structures of the sound generating device, which can be combined with other structures of the sound generating device to realize the sound function of the sound generating device.

如图2、图3和图4所示，在本申请实施例还示出了发生装置100中扬声器单体30的其他结构，扬声器单体30还包括固定于盆架31内的振动系统33和磁路系统34，振动系统33包括本申请中的振膜32、置于振膜32上的球顶331和驱动振膜32振动的音圈332，其中，磁路系统34用于为音圈332提供驱动，使音圈332振动，然后带动振膜32振动产生声音，并通过出声口12传递出去，从而完成扬声器单体30的发声功能。As shown in Figures 2, 3, and 4, the embodiment of the present application also shows other structures of the speaker unit 30 in the generator 100. The speaker unit 30 also includes a vibration system 33 and a vibration system fixed in the frame 31. The magnetic circuit system 34, the vibration system 33 includes the diaphragm 32 in the present application, the dome 331 placed on the diaphragm 32, and the voice coil 332 that drives the diaphragm 32 to vibrate, where the magnetic circuit system 34 is used for the voice coil 332 A drive is provided to vibrate the voice coil 332, and then drive the diaphragm 32 to vibrate to generate sound, which is transmitted through the sound outlet 12, thereby completing the sound function of the speaker unit 30.

其中，磁路系统34以及振动系统33中的音圈332位于下盖板20与振膜32构成第二音腔中，振动系统33中的球顶331上盖板10与振膜32构成的第一音腔中。Among them, the magnetic circuit system 34 and the voice coil 332 in the vibration system 33 are located in the second sound cavity formed by the lower cover 20 and the diaphragm 32, and the dome 331 in the vibration system 33 is formed by the upper cover 10 and the diaphragm 32. In a tone cavity.

其中，球顶的材料为合金或复合材料，该合金可为铝合金、钛合金、镁合金或钛合金等，复合材料为复合材料。该复合材料为有机纤维复合材料或弹纤维复合材料等。Wherein, the material of the dome is an alloy or a composite material, the alloy may be an aluminum alloy, a titanium alloy, a magnesium alloy, a titanium alloy, etc., and the composite material is a composite material. The composite material is an organic fiber composite material or an elastic fiber composite material.

以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。The above are only the implementation manners of this application. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of this application, but these all belong to this application. The scope of protection.

工业实用性Industrial applicability

综上所述，本申请实施例提供的发声装置延展了扬声器单体中，振膜覆盖盆架的面积，使其包装到盆架侧面形成密封部，此密封部固定在盆架四周，当上盖板安装在盆架上时，上盖板与盆架均会对密封部施加压力，由于密封部是振膜的一部分，振膜通常具有较强的韧性，一致性好，因此当其受到挤压时，可以密封扬声器单体侧面，即盆架侧面与安装结构之间的缝隙，将上盖板与下盖板盖接后形成的收容空间隔离为第一音腔和第二音腔，实现发声装置中前后音腔的隔离。本申请在发声装置的基础结构上拓展了振膜结构，当上盖板安装在盆架上，并与下盖板盖接构成发声装置时，利用密封部密封装配在收容空间中的扬声器单体的侧面，实现发声装置前后两个音腔的密封隔离，使得产品密封一致性好、工序简单、加工效率高。To sum up, the sound device provided by the embodiments of the present application extends the area of the speaker unit, the diaphragm covers the area of the basin frame, so that it is packaged on the side of the basin frame to form a sealing part, which is fixed around the basin frame, When the cover plate is installed on the basin frame, both the upper cover plate and the basin frame will exert pressure on the sealing part. Since the sealing part is a part of the diaphragm, the diaphragm usually has strong toughness and good consistency, so when it is squeezed When pressed, the side of the speaker unit, that is, the gap between the side of the basin frame and the installation structure, can be sealed, and the accommodation space formed after the upper cover plate and the lower cover plate are connected can be isolated into the first sound cavity and the second sound cavity, so as to realize The isolation of the front and rear sound chambers in the sound device. This application expands the diaphragm structure on the basic structure of the sound device. When the upper cover is installed on the basin frame and connected with the lower cover to form the sound device, the speaker unit assembled in the containing space is sealed by the sealing part The side surface of the sound generating device realizes the sealing isolation of the two sound chambers before and after the sound generating device, so that the product has good sealing consistency, simple procedures and high processing efficiency.

Claims (5)

一种发声装置，其特征在于，包括下盖板、与所述上盖板盖接形成收容空间的下盖板以及装配在所述收容空间中的扬声器单体； A sound generating device, characterized by comprising a lower cover plate, a lower cover plate connected with the upper cover plate to form an accommodation space, and a speaker unit assembled in the accommodation space; 所述扬声器单体包括盆架和固定在所述盆架上的振膜；The speaker unit includes a basin frame and a diaphragm fixed on the basin frame; 所述上盖板内侧设有安装所述盆架的安装结构， 所述盆架安装在所述安装结构上，所述振膜将所述容纳空间分为第一音腔和第二音腔；The inner side of the upper cover is provided with an installation structure for installing the basin frame, the basin frame is installed on the installation structure, and the diaphragm divides the accommodation space into a first sound cavity and a second sound cavity; 所述振膜包括延伸至所述盆架侧面、并与所述安装结构接触的密封部；The diaphragm includes a sealing portion extending to the side of the basin frame and in contact with the mounting structure; 所述密封部受所述盆架和所述上盖板挤压，并使所述第一音腔与所述第二音腔隔离。The sealing portion is squeezed by the basin frame and the upper cover plate, and isolates the first sound cavity from the second sound cavity. 根据权利要求1所述发声装置，其特征在于，所述密封部的厚度大于未延伸至所述盆架侧面的振膜的厚度。 The sounding device according to claim 1, wherein the thickness of the sealing portion is greater than the thickness of the diaphragm that does not extend to the side of the basin frame. 根据权利要求1所述发声装置，其特征在于，所述振膜延伸至所述盆架侧面的位置还包括弯折部； The sounding device according to claim 1, wherein the position where the diaphragm extends to the side of the basin frame further comprises a bent portion; 所述密封部与所述弯折部相接。The sealing part is in contact with the bending part. 根据权利要求1所述发声装置，其特征在于，所述上盖板中还设有与所述第一音腔相通的出声口。 The sound emitting device according to claim 1, wherein the upper cover plate is also provided with a sound outlet communicating with the first sound cavity. 根据权利要求1所述发声装置，其特征在于，所述振膜的材料为高分子材料。 The sound device according to claim 1, wherein the material of the diaphragm is a polymer material.
PCT/CN2019/094163 2019-07-01 2019-07-01 Sound generation device Ceased WO2021000215A1 (en)

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CN111711896B (en) 2020-08-20 2020-11-20 歌尔股份有限公司 Sound production device module
CN112423201B (en) * 2020-11-30 2022-01-11 瑞声新能源发展(常州)有限公司科教城分公司 Sound production device

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CN202663536U (en) * 2012-07-22 2013-01-09 嵊州金舟电声有限公司 Built-in television full frequency speaker
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