WO2017148008A1 - 扬声器模组 - Google Patents

扬声器模组 Download PDF

Info

Publication number
WO2017148008A1
WO2017148008A1 PCT/CN2016/082422 CN2016082422W WO2017148008A1 WO 2017148008 A1 WO2017148008 A1 WO 2017148008A1 CN 2016082422 W CN2016082422 W CN 2016082422W WO 2017148008 A1 WO2017148008 A1 WO 2017148008A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure relief
pressure
hole
speaker module
groove
Prior art date
Application number
PCT/CN2016/082422
Other languages
English (en)
French (fr)
Inventor
韩丹
霍新祥
杨赟
Original Assignee
歌尔声学股份有限公司
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 歌尔声学股份有限公司 filed Critical 歌尔声学股份有限公司
Priority to US16/080,856 priority Critical patent/US11202134B2/en
Publication of WO2017148008A1 publication Critical patent/WO2017148008A1/zh

Links

Images

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers
    • 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2846—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H04R1/2849—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/029—Manufacturing aspects of enclosures transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the present invention relates to the field of acoustic energy conversion technology, and more particularly to a speaker module.
  • a pressure relief device is generally arranged in the sound chamber behind the speaker to ensure balance with the outside air pressure.
  • the existing pressure relief device is generally designed such that the outer casing opens a pressure relief hole at the rear sound chamber, and the outer casing opens a pressure relief groove on a side close to the rear sound chamber, and a pressure cover is attached above the pressure relief groove.
  • the pressure relief groove communicates with the pressure relief hole to form a pressure relief passage.
  • the pressure relief channel can make the rear sound chamber equal to the external environment and can achieve the effect of acoustic sealing.
  • the disadvantage of this design is that the shape of the outer casing is complicated, the requirements for injection molding are high, and the width and depth of the pressure relief groove are also limited by the mold.
  • a speaker module includes a housing and a speaker unit located in a cavity of the housing, the speaker unit separating the inner cavity into a front acoustic cavity and a rear acoustic cavity separated from each other, wherein the outer casing is further provided with a connection for connecting the rear a pressure relief device that is acoustically sealed with an external environment; the pressure relief device includes a pressure relief hole penetrating through a thickness direction of the outer casing, and the pressure relief hole is provided with a pressure cover on a side close to the rear sound cavity.
  • An end surface of the gland close to the pressure relief hole is provided with a pressure relief groove, one end of the pressure release groove is connected to the pressure release hole, and the other end of the pressure release groove is worn from the end of the pressure cover
  • the pressure relief groove and the pressure relief hole together constitute a pressure relief passage of the rear sound chamber.
  • the pressure relief device is disposed within the housing for separating the front acoustic chamber from the rear acoustic chamber.
  • the pressure cover is provided with a plurality of pressure relief grooves.
  • the outer casing is provided with a plurality of pressure relief devices.
  • the pressure relief groove has a rectangular, curved or triangular cross section.
  • the pressure relief groove has a rectangular cross section, and the pressure relief groove has a width and a depth of less than or equal to 0.2 mm; and the pressure relief groove has a length of 2.0 mm or more.
  • the pressure relief groove is linear, polygonal or curved.
  • the pressure relief hole is provided with a mesh on the other side away from the rear acoustic cavity.
  • the mesh is a waterproof and breathable mesh.
  • the inventors of the present invention have found that in the prior art, the pressure relief grooves are all opened on the outer casing, the processing requirements on the outer casing are high, the yield of the speaker module is low, and the width and depth of the pressure relief groove are affected by the mold. limit. Therefore, the technical task to be achieved by the present invention or the technical problem to be solved is not thought of or expected by those skilled in the art, so the present invention is a new technical solution.
  • the speaker module provided by the invention is provided with a pressure relief device, which can effectively balance the air pressure of the rear sound chamber and the external environment.
  • the pressure relief groove of the pressure relief device is opened on the gland, and the design is convenient for processing, and the yield of the speaker module can be effectively improved.
  • a pressure relief groove is formed on the gland, and the processing is simple and the size of the pressure relief groove can be opened as needed.
  • FIG. 1 is a cross-sectional view of a speaker module in accordance with an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of another speaker module in accordance with an embodiment of the present invention.
  • Figure 3 is a partial enlarged view of a portion A in Figure 1.
  • FIG. 4 is a schematic view of a gland according to an embodiment of the present invention.
  • FIG. 5 is a schematic illustration of another gland in accordance with an embodiment of the present invention.
  • Fig. 6 is a schematic view showing still another gland according to an embodiment of the present invention.
  • the present invention provides a speaker module.
  • the module includes a housing and a speaker unit 11.
  • the outer casing is formed by the upper casing 2, the middle casing 3 and the lower casing 4, and the inner cavity is formed therein, and the speaker unit 11 is received in the inner cavity.
  • the speaker unit 11 separates the inner chamber into the front sound chamber 14 and the rear sound chamber 15 which are isolated from each other.
  • the space between the vibrating assembly of the speaker unit 11 and the upper casing 2 is the front acoustic chamber 14, and the front acoustic chamber 14 is in communication with the external environment.
  • the space between the magnetic circuit assembly of the speaker unit 11 and the rear case 4 is the rear acoustic cavity 15, and the rear acoustic cavity 15 is a sealed space.
  • a pressure relief device 12 for electrically connecting the rear acoustic chamber 15 to the external environment and acoustically sealed is also disposed on the outer casing.
  • the pressure relief device 12 includes a pressure relief hole 121 penetrating through the thickness direction of the outer casing, and the pressure relief hole 121 is provided with a pressure cover 122 near the end surface of the rear sound chamber 15.
  • the pressure cap 122 is provided with a pressure relief groove 1221 on a side close to the pressure relief hole 121.
  • One end of the pressure release groove 1221 is connected to the pressure release hole 121, and the other end of the pressure release groove 1221 is pierced from the end of the pressure cover 122.
  • the pressure relief groove 1221 and the pressure relief hole 121 together constitute a pressure relief passage of the rear sound chamber 15.
  • the gas can pass through the pressure relief passage, and the air pressure in the rear sound chamber 15 is consistent with the air pressure of the external environment.
  • the pressure relief groove 1221 of the pressure relief device 12 is opened on the gland instead of being opened on the outer casing, and the design greatly reduces the outer casing.
  • the processing difficulty increases the yield of the outer casing.
  • the process of processing the pressure relief groove 1221 on the gland 122 is relatively simple, and the yield of the gland 122 is high. Therefore, the design can effectively improve the yield of the speaker module. .
  • the speaker unit comprises a magnetic circuit system and a vibration system, wherein the magnetic circuit system comprises a basin frame located in the inner cavity, and a magnet located in the basin frame, a gap between the magnet and the side wall of the basin frame, and the magnet is further provided with a
  • the vibration system includes a diaphragm fixed in the inner cavity, and a voice coil that drives the diaphragm to sound.
  • the voice coil is fixed on the diaphragm and suspended in the gap between the magnet and the side wall of the basin frame;
  • the center position is set with a dome or the like.
  • the voice coil When the voice coil is energized, the voice coil will vibrate under the action of the magnetic circuit system. At the same time, the voice coil drives the diaphragm to vibrate together to realize the sound of the diaphragm.
  • the housing is also provided with an acoustic hole 13 communicating with the front acoustic chamber 14, so that the sound emitted by the diaphragm can flow from the sound hole 13 to the outside.
  • the pressure relief passage is acoustically sealed.
  • the meaning of the acoustic seal is that it is acoustically sealed, that is, the sound wave is not allowed to pass through.
  • the pressure relief passage is acoustically sealed, that is, the sound located in the front sound chamber 14 does not pass through the pressure relief passage into the rear sound chamber 15, thereby ensuring sound insulation of the front sound chamber 14 and the rear sound chamber 15 to prevent The acoustic short circuit causes the speaker to fail.
  • the acoustic sealing of the pressure relief passage may be accomplished by means well known to those skilled in the art, such as by making the pressure relief passage small, or by other known means to increase the damping of the pressure relief passage, It makes it a damper hole structure, so that sound can be prevented from propagating in the pressure relief passage.
  • the pressure relief hole 121 is provided with a gland 122 on a side close to the rear acoustic cavity 15.
  • the gland 122 can be The double-sided tape 18 is bonded and fixed to the outer casing; a mesh 17 is disposed on a side away from the rear sound chamber 15.
  • the mesh cloth 17 can also be bonded and fixed to the outer casing by the double-sided tape 18 so as to cover the pressure relief hole 121.
  • the mesh cloth 17 can be ventilated and can play a damping role. Thereby achieving the effect of acoustic sealing.
  • adjusting the spacing of the mesh holes in the mesh cloth 17 can achieve the purpose of adjusting the damping.
  • the mesh cloth 17 is provided to prevent foreign matter from entering the rear sound chamber 15. More preferably, The waterproof mesh is used to improve the waterproof performance of the speaker module. This speaker module is more suitable for waterproof portable devices.
  • the middle casing 3 is provided with a partition 16 for separating the front sound chamber 14 from the rear sound chamber 15, and the partition 16 is provided with a passage for mounting the speaker unit 11.
  • the hole, module pressure relief device 12 is disposed on the partition 16.
  • the speaker module has a pressure relief device 12 disposed inside the outer casing, and the pressure relief passage connecting the external environment is not separately provided at other positions of the rear sound chamber 15, so that the entire speaker module has a neat appearance and no pressure relief device 12 is present. Damage or blockage problem.
  • the material of the upper shell 2, the middle shell 3 and the lower shell 4 is generally plastic, plastic or silica gel, and can be formed by an injection molding process according to a predetermined mold.
  • the pressure relief hole 121, the partition plate 16 and the like can be integrally formed in the injection molding process.
  • the cross-sectional area of the pressure relief hole 121 may be, but not limited to, a circle, a rectangle, a triangle, or the like.
  • the pressure relief hole 121 has a circular cross section.
  • the pressure relief hole 121 is designed as a bell mouth on the side close to the pressure relief groove 1221. This structure increases the pressure relief hole 121 and the pressure relief groove 1221. The communication area makes the communication between the pressure relief hole 121 and the pressure relief groove 1221 smoother.
  • the gland 122 is generally in the form of a sheet, and can be designed into a rectangular shape, a circular shape, or the like according to requirements, and the material thereof can be plastic, such as PE (polyethylene), PC (polycarbonate), PP (polypropylene), etc., and one can be used.
  • the sleeve mold is molded by injection molding, and at the same time, the pressure relief groove 1221 is molded once in the injection molding. It is also possible to open the pressure relief groove 1221 on the surface thereof after the molding of the gland 122 is completed by a technique known in the art.
  • the structure of the gland 122 is simple, and the pressure relief groove 1221 is formed on the surface thereof. The process is simple and can be opened according to a predetermined size. In use, the pressure relief groove 1221 should be aligned with the pressure relief hole 121 to ensure that the pressure relief passage is unblocked, and the pressure cover 122 can be adhered to the pressure relief hole 121 by means of edge coating or double-sided tape.
  • the pressure relief groove 1221 can be designed as, but not limited to, a straight line, Polyline or curved. Among them, the linear pressure relief groove 1221 is convenient for processing; the broken line shape and the curved pressure relief groove 1221 can increase the length of the pressure relief groove 1221, so that the acoustic sealing effect of the pressure relief device is better. Further, the cross section of the pressure relief groove 1221 may be, but not limited to, a rectangle, an arc, or a triangle, as long as the effect of acoustic sealing and balance of air pressure can be satisfied and processing is facilitated. It should be noted that when the pressure relief groove 1221 of the shape shown in FIG. 5 and FIG. 6 is adopted, the pressure cover 122 itself can still be bonded and fixed to the outer casing by the double-sided adhesive 18, and FIG. 4 has been correspondingly illustrated in FIG. , will not repeat them here.
  • the pressure relief groove 1221 plays a key role in the air pressure balance of the rear sound chamber 15 and the external environment as well as the acoustic sealing effect.
  • the pressure relief groove 1221 in order to ensure the air pressure balance and the acoustic sealing effect is good, has a rectangular cross section, and the pressure relief groove 1221 has a width and a depth of 0.2 mm or less.
  • the length of the pressure relief groove 1221 is greater than or equal to 2.0 mm.
  • the size of the pressure relief groove 1221 is not limited thereto, and the size should be selected to match the speaker size and the power of the speaker.
  • the pressure cover 122 is provided with a plurality of pressure relief grooves 1221, and the plurality of pressure relief grooves 1221 may be radially distributed, that is, It radiates from the center of the platen toward the edge and communicates with the pressure relief hole 121 at the center.
  • the plurality of pressure relief grooves 1221 may be distributed in parallel, and communicated at one end, and the communicating portion communicates with the pressure relief groove 1221.
  • a plurality of pressure relief devices 12 are provided on the outer casing to ensure a balanced air pressure. The arrangement of the plurality of pressure relief devices 12 can be selected according to actual needs, which is not limited by the present invention.

Abstract

本发明公开了一种扬声器模组，该模组包括外壳以及位于外壳的内腔中的扬声器单体，所述扬声器单体将内腔分隔为彼此隔绝的前声腔和后声腔，其中，所述外壳上还设置有用于连通所述后声腔与外界环境且声学密封的泄压装置；所述泄压装置包括贯穿于所述外壳的厚度方向的泄压孔，所述泄压孔在靠近所述后声腔的一侧设置有压盖，所述压盖的靠近所述泄压孔的表面设置有泄压槽，所述泄压槽的一端连接所述泄压孔，所述泄压槽的另一端从所述压盖的端部穿出，泄压槽和泄压孔共同构成后声腔的泄压通道。该扬声器模组的泄压装置的泄压槽开设在压盖上，这种设计便于加工，可以有效提高扬声器模组的良品率。

Description

扬声器模组 技术领域
本发明涉及声能转换技术领域，更具体地，涉及一种扬声器模组。
背景技术
为保证微型扬声器模组能在不同气压环境下正常工作，一般在扬声器后声腔设置一泄压装置，以保证与外界气压平衡。
现有的泄压装置一般设计为：外壳在后声腔处开设一个泄压孔，外壳在靠近后声腔的一侧开设泄压槽，泄压槽的上方粘贴一个压盖。该泄压槽与泄压孔连通形成泄压通道。该泄压通道可以使后声腔与外界环境等压，且能达到声学密封的效果。该设计的缺点在于外壳的形状复杂，注塑的要求高，且泄压槽的宽度和深度等也受模具限制。
发明内容
本发明的一个目的是提供一种扬声器模组的新技术方案。
根据本发明的第一方面，提供了一种扬声器模组。该模组包括外壳以及位于外壳的内腔中的扬声器单体，所述扬声器单体将内腔分隔为彼此隔绝的前声腔和后声腔，其中，所述外壳上还设置有用于连通所述后声腔与外界环境且声学密封的泄压装置；所述泄压装置包括贯穿于所述外壳的厚度方向的泄压孔，所述泄压孔在靠近所述后声腔的一侧设置有压盖，所述压盖的靠近所述泄压孔的端面设置有泄压槽，所述泄压槽的一端连接所述泄压孔，所述泄压槽的另一端从所述压盖的端部穿出，泄压槽和泄压孔共同构成后声腔的泄压通道。
优选地，所述泄压装置设置在所述外壳内用于将所述前声腔与所述后声腔隔开的隔板上。
优选地，所述压盖上设置有多条泄压槽。
优选地，所述外壳设置有多个泄压装置。
优选地，所述泄压槽的横截面为矩形、弧形或者三角形。
优选地，所述泄压槽的横截面为矩形，所述泄压槽的宽度和深度均小于等于0.2mm；所述泄压槽的长度大于等于2.0mm。
优选地，所述泄压槽为直线形、折线形或者曲线形。
优选地，所述泄压孔在远离所述后声腔的另一侧设置有网布。
优选地，所述网布为防水且透气网布。
本发明的发明人发现，在现有技术中，泄压槽都是开设在外壳上，对外壳加工工艺要求较高，造成扬声器模组良品率低，且泄压槽的宽度和深度受到模具的限制。因此，本发明所要实现的技术任务或者所要解决的技术问题是本领域技术人员从未想到的或者没有预期到的，故本发明是一种新的技术方案。
本发明提供的扬声器模组设置有泄压装置，可以有效的平衡后声腔和外界环境的气压。其中，泄压装置的泄压槽开设在压盖上，这种设计便于加工，可以有效提高扬声器模组的良品率。
此外，压盖上开设泄压槽，加工简单且泄压槽的尺寸可以根据需要进行开设。
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例，并且连同其说明一起用于解释本发明的原理。
图1是本发明实施例的扬声器模组的剖视图。
图2是本发明实施例的另一种扬声器模组的剖视图。
图3是图1中A处的局部放大图。
图4是本发明实施例的压盖的示意图。
图5是本发明实施例的另一种压盖的示意图。
图6是本发明实施例的又一种压盖的示意图。
具体实施方式
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
本发明提供了一种扬声器模组，参照图1-3，该模组包括：外壳和扬声器单体11。其中，外壳由上壳2、中壳3和下壳4扣合而成，其内部形成内腔，扬声器单体11收容于内腔中。扬声器单体11将内腔分隔为彼此隔绝的前声腔14和后声腔15。扬声器单体11的振动组件与上壳2之间的空间为前声腔14，前声腔14与外界环境连通。扬声器单体11的磁路组件与后壳4之间的空间为后声腔15，后声腔15为密封的空间。外壳上还设置有用于连通后声腔15与外界环境且声学密封的泄压装置12。泄压装置12包括贯穿于外壳的厚度方向的泄压孔121，泄压孔121在靠近后声腔15的端面设置有压盖122。压盖122在靠近泄压孔121的一侧设置有泄压槽1221，泄压槽1221的一端连接泄压孔121，泄压槽1221的另一端从压盖122的端部穿出。泄压槽1221和泄压孔121共同构成后声腔15的泄压通道。该泄压通道连通后声腔15与外界环境，气体可以通过泄压通道，保持后声腔15内的气压与外界环境的气压相一致。并且，泄压装置12的泄压槽1221开设在压盖上，而不是开设在外壳上，这种设计大大降低了外壳的 加工难度，提高了外壳的良品率，此外，在压盖122上加工泄压槽1221的工艺相对简单，压盖122的良品率高，因此，这种设计可以有效地提高扬声器模组的良品率。
扬声器单体包括磁路系统和振动系统，其中磁路系统包括位于内腔中的盆架，以及位于盆架中的磁铁，磁铁和盆架的侧壁之间具有间隙，磁铁上还设置了华司等；振动系统包括固定在内腔内的振膜，以及驱动振膜发声的音圈，所述音圈固定在振膜上，并且悬置在磁铁与盆架侧壁的间隙中；振膜的中心位置设置有球顶等。
当音圈通电后，音圈会在磁路系统的作用下振动，与此同时，音圈驱动振膜一同振动，实现振膜的发声。所述外壳上还设置有连通前声腔14的声孔13，使得振膜发出的声音可以从声孔13流通到外界。上述结构属于本领域技术人员的公知常识，在此不再具体说明。
需要说明的是，该泄压通道是声学密封的，对于本领域的技术人员来说，声学密封的含义为在声学上处于声密封的状态，也就是说，不允许声波穿过。该泄压通道为声学密封的，也就是说，位于前声腔14中的声音不会穿过泄压通道进入到后声腔15中，从而可以保证前声腔14与后声腔15的声隔绝，以防止声短路进而造成扬声器发生失效。
在一些实施例中，可通过本领域技术人员所熟知的手段来实现泄压通道的声学密封，例如将泄压通道做的很小，或者通过其它公知的手段，提高该泄压通道的阻尼，使其成为阻尼孔结构，从而可以防止声音在该泄压通道内传播。
参照图1-2，在本发明的一种具体实施方式中，泄压孔121在靠近所述后声腔15的一侧设置压盖122，具体实施时，参阅图4所示，压盖122可以通过双面胶18与外壳粘结固定；在远离后声腔15的一侧设置有网布17(mesh)。具体的，参阅图3所示，也可以通过双面胶18将网布17粘结固定于外壳上，使其能够覆盖泄压孔121，该网布17可透气，能够起到阻尼的作用，从而达到声学密封的效果。当然，对于本领域的技术人员来说，调节网布17中网孔的间距大小，可以达到调节其阻尼的目的。本发明中，设置的网布17还可以防止异物进入到后声腔15中。更加优选的是， 采用防水网布，提高了扬声器模组的防水性能，这种扬声器模组更适用于防水式便携设备中。
参照图1，在本发明的一种优选的实施方式中，中壳3设有用于将前声腔14与后声腔15隔开的隔板16，隔板16设有用于安装扬声器单体11的通孔，模组的泄压装置12设置在隔板16上。本领域技术人员应当理解，前声腔14通过出声孔13与外界环境连通，因此，后声腔15与前声腔14连通即相当于后声腔15与外界环境连通。可以理解的是，泄压孔121的靠近前声腔14的一侧覆盖有网布17，靠近后声腔15的一侧安装有压盖。该扬声器模组，其泄压装置12设置在外壳的内部，不用在后声腔15的其他位置单独设置连通外界环境的泄压通道，使得整个扬声器模组外观整洁，也不会出现泄压装置12损坏或堵塞的问题。
上壳2、中壳3和下壳4的材质一般为塑料、塑胶或者硅胶，可以根据预定的模具采用注塑工艺进行成型，泄压孔121、隔板16等部件可以在注塑过程中一体成型。当然，也可以在外壳成型后，在预定的位置开设泄压孔121。进一步地，泄压孔121的横截面积可以是但不局限于圆形、矩形、三角形等。为了提高声学密封效果并保证后声腔15与外界环境的连通效果，优选的是，泄压孔121的横截面为圆形。为了降低泄压孔121与泄压槽1221对齐的难度，泄压孔121在靠近泄压槽1221的一侧设计成喇叭口状，这种结构增大了泄压孔121与泄压槽1221的连通面积，使泄压孔121与泄压槽1221的连通更顺畅。
压盖122一般为片状，可以根据需要设计成矩形、圆形等形状，其材质可以为塑料，如PE(聚乙烯)、PC(聚碳酸酯)、PP(聚丙烯)等，可以采用一套模具通过注塑的方法进行成型，同时，泄压槽1221在注塑中一次成型。也可以在压盖122成型完成后，通过本领域所熟知的技术手段在其表面上开设泄压槽1221。压盖122的结构简单，在其表面开设泄压槽1221工艺简单，可以根据预定的尺寸进行开设。使用时，将泄压槽1221应对准泄压孔121以保证泄压通道畅通，可以采用边缘涂胶或者双面胶等方式将压盖122粘接到泄压孔121上。
进一步地，参照图4-6，泄压槽1221可以设计成但不局限于直线形、 折线形或者曲线形。其中，直线型的泄压槽1221便于加工；折线形和曲线形的泄压槽1221可以增大泄压槽1221的长度，使泄压装置的声学密封效果更好。更进一步地，泄压槽1221的横截面可以是但不局限于矩形、弧形或者三角形，只要能满足声学密封和平衡气压的效果并便于加工即可。需要说明的是，当采取图5和图6所示出形状的泄压槽1221时，压盖122本身仍然可以通过双面胶18与外壳粘结固定，图4对此部分已作出相应的示意，在此不再赘述。
本领域技术人员可以理解的是，泄压槽1221对后声腔15与外界环境的气压平衡以及声学密封效果起到关键作用。泄压槽1221越长且内径越小则声阻越大，声音泄漏量越小，声学密封效果越好，但平衡气压的效果较差；反之，泄压槽1221越短且内径越大则声阻越小，声音泄漏量越大，声学密封效果越差，但平衡气压的效果较好。
在本发明的一种具体实施方式中，为了保证气压平衡且声学密封效果良好，泄压槽1221的横截面为矩形，泄压槽1221的宽度和深度均小于等于0.2mm。泄压槽1221的长度大于等于2.0mm。当然，泄压槽1221的尺寸不限于此，尺寸的选择应与扬声器大小以及扬声器的功率相匹配。
为了保证后声腔15与外界环境的气压平衡，在本发明的一种具体的实施方式中，压盖122上设置有多条泄压槽1221，多条泄压槽1221可以呈辐射状分布，即由压板中心向边缘辐射，在中心与泄压孔121连通。也可以是多条泄压槽1221并行分布，在一端连通，连通的部分与泄压槽1221相通。在另一种实施方式中，外壳上设置有多个泄压装置12，同样能保证气压平衡。多个泄压装置12的设置方式可以根据实际需要进行选择，本发明对此不做限定。
虽然已经通过例子对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。

Claims (9)

  1. 一种扬声器模组，包括外壳以及位于外壳的内腔中的扬声器单体(11)，其特征在于，所述扬声器单体(11)将内腔分隔为彼此隔绝的前声腔(14)和后声腔(15)，所述外壳上还设置有用于连通所述后声腔(15)与外界环境且声学密封的泄压装置(12)；所述泄压装置(12)包括贯穿于所述外壳的厚度方向的泄压孔(121)，所述泄压孔(121)在靠近所述后声腔(15)的一侧设置有压盖(122)，所述压盖(122)的靠近所述泄压孔(121)的端面设置有泄压槽(1221)，所述泄压槽(1221)的一端连接所述泄压孔(121)，所述泄压槽(1221)的另一端从所述压盖(122)的端部穿出，泄压槽(1221)和泄压孔(121)共同构成所述后声腔(15)的泄压通道。
  2. 根据权利要求1所述的扬声器模组，其特征在于，所述泄压装置(12)设置在所述外壳内用于将所述前声腔(14)与所述后声腔(15)隔开的隔板(16)上。
  3. 根据权利要求1-2中的任意一项所述的扬声器模组，其特征在于，所述压盖(122)上设置有多条泄压槽(1221)。
  4. 根据权利要求1-3中的任意一项所述的扬声器模组，其特征在于，所述外壳设置有多个泄压装置(12)。
  5. 根据权利要求1-4中的任意一项所述的扬声器模组，其特征在于，所述泄压槽(1221)的横截面为矩形、弧形或者三角形。
  6. 根据权利要求1-5中的任意一项所述的扬声器模组，其特征在于，所述泄压槽(1221)的横截面为矩形，所述泄压槽(1221)的宽度和深度均小于等于0.2mm；所述泄压槽(1221)的长度大于等于2.0mm。
  7. 根据权利要求1-6中的任意一项所述的扬声器模组，其特征在于，所述泄压槽(1221)为直线形、折线形或者曲线形。
  8. 根据权利要求1-7中的任意一项所述的扬声器模组，其特征在于，所述泄压孔(121)在远离所述后声腔(15)的另一侧设置有网布(17)。
  9. 根据权利要求8中的任意一项所述的扬声器模组，其特征在于，所述网布(17)为防水且透气网布。
PCT/CN2016/082422 2016-02-29 2016-05-18 扬声器模组 WO2017148008A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/080,856 US11202134B2 (en) 2016-02-29 2016-05-18 Speaker module

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610112352.5A CN105516870A (zh) 2016-02-29 2016-02-29 扬声器模组
CN201610112352.5 2016-02-29

Publications (1)

Publication Number Publication Date
WO2017148008A1 true WO2017148008A1 (zh) 2017-09-08

Family

ID=55724451

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/082422 WO2017148008A1 (zh) 2016-02-29 2016-05-18 扬声器模组

Country Status (3)

Country Link
US (1) US11202134B2 (zh)
CN (1) CN105516870A (zh)
WO (1) WO2017148008A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021036136A1 (zh) * 2019-08-30 2021-03-04 歌尔股份有限公司 一种发声装置以及电子产品
CN115396793A (zh) * 2022-08-31 2022-11-25 浙江豪声电子科技股份有限公司 一种高振幅带自泄压的扬声器以及测试方法
CN115914913A (zh) * 2021-09-30 2023-04-04 华为技术有限公司 声音输出装置

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204906708U (zh) 2015-09-09 2015-12-23 歌尔声学股份有限公司 一种扬声器模组
CN105516870A (zh) 2016-02-29 2016-04-20 歌尔声学股份有限公司 扬声器模组
CN106101946A (zh) * 2016-06-17 2016-11-09 深圳市信维通信股份有限公司 speakerbox组装结构、系统及方法
CN111294673B (zh) * 2016-06-29 2021-09-14 Oppo广东移动通信有限公司 音响结构及电子设备
CN106101914A (zh) * 2016-06-29 2016-11-09 广东欧珀移动通信有限公司 音响结构及电子设备
CN105916077A (zh) * 2016-06-29 2016-08-31 广东欧珀移动通信有限公司 音响装置及电子装置
CN106454663B (zh) * 2016-11-30 2022-02-18 歌尔股份有限公司 一种扬声器模组
CN206272838U (zh) * 2016-11-30 2017-06-20 歌尔股份有限公司 一种扬声器模组
CN106686505B (zh) * 2017-01-05 2020-05-05 惠州Tcl移动通信有限公司 防水声学器件及电子设备
CN108810769B (zh) * 2018-08-03 2021-02-26 瑞声光电科技(常州)有限公司 扬声器模组
CN208638706U (zh) * 2018-08-10 2019-03-22 瑞声科技(新加坡)有限公司 扬声器箱
CN109246560B (zh) * 2018-08-13 2020-05-22 歌尔股份有限公司 发声装置
US10609461B1 (en) * 2018-10-23 2020-03-31 Getac Technology Corporation Waterproof speaker device
CN110366073B (zh) * 2019-06-03 2021-06-15 瑞声科技(新加坡)有限公司 发声器件
CN110267179A (zh) * 2019-07-16 2019-09-20 瑞声光电科技(常州)有限公司 扬声器箱
CN112468943B (zh) * 2019-09-06 2022-04-29 瑞声科技(新加坡)有限公司 一种扬声器结构及应用该扬声器结构的电子设备
CN110958509A (zh) * 2019-12-27 2020-04-03 歌尔科技有限公司 一种发声装置模组和电子产品
CN212628404U (zh) * 2020-07-06 2021-02-26 瑞声科技(新加坡)有限公司 一种扬声器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0954200A2 (de) * 1998-04-09 1999-11-03 Robert Bosch Gmbh Lautsprecher
CN201718041U (zh) * 2010-06-21 2011-01-19 瑞声光电科技(常州)有限公司 发声器
CN204131710U (zh) * 2014-09-30 2015-01-28 歌尔声学股份有限公司 扬声器模组
CN204180228U (zh) * 2014-11-12 2015-02-25 歌尔声学股份有限公司 扬声器模组
CN204906708U (zh) * 2015-09-09 2015-12-23 歌尔声学股份有限公司 一种扬声器模组
CN105516870A (zh) * 2016-02-29 2016-04-20 歌尔声学股份有限公司 扬声器模组
CN205491108U (zh) * 2016-01-11 2016-08-17 瑞声光电科技(常州)有限公司 扬声器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1856180A (zh) * 2004-11-01 2006-11-01 桑尼奥荷兰有限公司 电－声转换器和转换器组件
EP2416589B1 (en) * 2004-11-01 2017-12-20 Sonion Nederland B.V. An electro-acoustical transducer and a transducer assembly
US9208769B2 (en) * 2012-12-18 2015-12-08 Apple Inc. Hybrid adaptive headphone
CN203840505U (zh) * 2014-04-30 2014-09-17 江苏裕成电子有限公司 带微泄漏孔的微型扬声器
CN205622852U (zh) * 2016-02-29 2016-10-05 歌尔股份有限公司 扬声器模组

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0954200A2 (de) * 1998-04-09 1999-11-03 Robert Bosch Gmbh Lautsprecher
CN201718041U (zh) * 2010-06-21 2011-01-19 瑞声光电科技(常州)有限公司 发声器
CN204131710U (zh) * 2014-09-30 2015-01-28 歌尔声学股份有限公司 扬声器模组
CN204180228U (zh) * 2014-11-12 2015-02-25 歌尔声学股份有限公司 扬声器模组
CN204906708U (zh) * 2015-09-09 2015-12-23 歌尔声学股份有限公司 一种扬声器模组
CN205491108U (zh) * 2016-01-11 2016-08-17 瑞声光电科技(常州)有限公司 扬声器
CN105516870A (zh) * 2016-02-29 2016-04-20 歌尔声学股份有限公司 扬声器模组

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021036136A1 (zh) * 2019-08-30 2021-03-04 歌尔股份有限公司 一种发声装置以及电子产品
CN115914913A (zh) * 2021-09-30 2023-04-04 华为技术有限公司 声音输出装置
CN115396793A (zh) * 2022-08-31 2022-11-25 浙江豪声电子科技股份有限公司 一种高振幅带自泄压的扬声器以及测试方法

Also Published As

Publication number Publication date
US11202134B2 (en) 2021-12-14
US20190098385A1 (en) 2019-03-28
CN105516870A (zh) 2016-04-20

Similar Documents

Publication Publication Date Title
WO2017148008A1 (zh) 扬声器模组
WO2017148009A1 (zh) 扬声器模组
US10567858B2 (en) Loudspeaker module and terminal device
KR102227132B1 (ko) 기압 평형구조를 가지는 커널형 이어폰
US9628900B2 (en) Double-vibrating-diaphragm loudspeaker module
CN209462592U (zh) 声学装置和电子设备
WO2018214280A1 (zh) 扬声器模组及电子设备
WO2020077782A1 (zh) 一种移动终端设备
WO2017000504A1 (zh) 微型扬声器
CN205622852U (zh) 扬声器模组
WO2020034727A1 (zh) 发声装置
CN104967958A (zh) 高音质压电式扬声器
WO2020034728A1 (zh) 终端装置
CN106454627B (zh) 防水型发声装置以及耳机
WO2021031477A1 (zh) 声学装置及电子设备
CN106454663B (zh) 一种扬声器模组
JP2019115039A (ja) 複数の振動板を備えた音響器機
KR101470983B1 (ko) 마이크로 스피커
WO2021088225A1 (zh) 声学装置及电子设备
EP2914017B1 (en) Speaker module
CN205510384U (zh) 扬声器模组
CN207200968U (zh) 防水型扬声器模组以及电子设备
CN206164833U (zh) 微型扬声器
WO2021120915A1 (zh) 一种用于发声装置的吸音材料封装结构及发声装置
CN205545840U (zh) 一种新型无源辐射器音箱

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16892197

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16892197

Country of ref document: EP

Kind code of ref document: A1