WO2015085789A1 - 一种扬声器模组及其制造方法 - Google Patents

一种扬声器模组及其制造方法 Download PDF

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Publication number
WO2015085789A1
WO2015085789A1 PCT/CN2014/084532 CN2014084532W WO2015085789A1 WO 2015085789 A1 WO2015085789 A1 WO 2015085789A1 CN 2014084532 W CN2014084532 W CN 2014084532W WO 2015085789 A1 WO2015085789 A1 WO 2015085789A1
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WO
WIPO (PCT)
Prior art keywords
elastic member
speaker module
upper shell
housing
plastic base
Prior art date
Application number
PCT/CN2014/084532
Other languages
English (en)
French (fr)
Inventor
王新
刘一韬
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 KR1020167015660A priority Critical patent/KR101791619B1/ko
Priority to US15/103,227 priority patent/US9838816B2/en
Publication of WO2015085789A1 publication Critical patent/WO2015085789A1/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
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/06—Making preforms by moulding the material
    • B29B11/08—Injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • 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
    • H04R9/06—Loudspeakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/1495—Coating undercut inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B29K2021/003—Thermoplastic elastomers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0058—Liquid or visquous
    • B29K2105/0061—Gel or sol
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3418—Loud speakers
    • 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 electroacoustic technology, and in particular, to a speaker module and a method of manufacturing the same.
  • the speaker module is an important acoustic component in portable electronic devices for converting electrical energy into acoustic energy and is a sounding component of portable electronic devices.
  • the speaker module generally includes a housing and a speaker unit housed inside the housing.
  • the speaker unit includes a diaphragm assembly and a magnetic circuit assembly, and the speaker module has a front sound chamber and a rear sound chamber.
  • the front sound chamber is surrounded by the side of the casing facing the diaphragm assembly and the diaphragm assembly, and the rear sound chamber is surrounded by the side of the magazine and the diaphragm assembly away from the front sound chamber;
  • the open end of the front sound chamber is disposed on one side of the housing corresponding to the front sound chamber, that is, the sound hole.
  • the open end of the front cavity of the speaker module is combined with the sounding hole on the mobile phone, and the sound hole of the speaker module is connected with the sound hole of the mobile phone.
  • the sealing of the sound chamber in front of the speaker module to prevent air leakage and poor performance.
  • an elastic member is disposed at a joint portion between the open end of the front cavity of the speaker module and the binding member of the mobile phone, and is sealed by a certain amount of compression.
  • the elastic member is a separate component. After processing, it needs to be manually attached to the joint surface of the front cavity of the module, and then assembled with the terminal electronic products such as mobile phones.
  • the shape of the elastic member is required to be regular.
  • the shape and structure of the joint between the different terminal electronic products and the speaker module are different, and the shape of the joint portion is irregular and the structure is complicated, so that it is suitable.
  • the elastic members are also characterized by irregular shape and complicated structure. Due to the soft hardness and complex shape of the elastic members, it is not easy to form and control; and when the elastic members with complicated shapes are artificially attached, the precision is high, resulting in low labor efficiency and quality. Hidden danger. Sometimes due to the special assembly method of the client, the artificially-fitted elastic parts are easy to fall off when assembled, and cannot meet the customer's requirements.
  • a first object of the present invention is to provide a speaker module which can be easily installed and combined with a terminal electronic product, thereby improving work efficiency, and the elastic body is not easy to fall off, and the adhesion is good, and the front can be ensured.
  • the sealing between the open end of the acoustic cavity or the rear acoustic cavity and the corresponding joint of the terminal electronic product improves the acoustic performance.
  • a speaker module includes a housing and a speaker unit coupled to the interior of the housing, the The sounder unit includes a diaphragm assembly and a magnetic circuit assembly, and a front sound chamber and a rear sound chamber are formed between the speaker unit and the housing, and the housing is provided with an elastic member, and the elastic member is coupled to the housing
  • the elastic member and the body are integrally formed by injection molding on the end surface of the open end of the upper or lower acoustic cavity.
  • the housing includes an upper casing, a middle casing and a lower casing, and the upper casing, the middle casing and the speaker unit enclose the front acoustic cavity; and the upper casing includes an upper casing injection plastic base.
  • the upper shell injection plastic base is provided with the front acoustic cavity open end, and the elastic member is correspondingly injection molded on the open end of the front acoustic cavity.
  • the joint portion of the upper shell injection plastic base and the elastic member is provided with an inverted structure that cooperates with each other.
  • the undercut structure includes an outwardly protruding fastener tooth disposed on the elastic member and a buckle groove correspondingly disposed on the upper casing plastic base book; or the reverse buckle
  • the structure includes outwardly projecting fastener teeth disposed on the upper casing plastic base and correspondingly disposed on the elastic member.
  • the elastic member is a TPU elastic member or a TPE elastic member or a silica gel.
  • a second object of the present invention is to provide a method of manufacturing the above speaker module, comprising the steps of:
  • the step a includes the following steps - al. forming an upper injection plastic substrate by injection molding;
  • the elastic member is injection-molded at the open end of the front acoustic cavity of the upper shell injection plastic substrate by a two-shot injection molding, and the elastic member is fused with the upper shell injection molded plastic body formed by injection molding to form an integral structure.
  • the upper shell is produced.
  • the joint portion of the upper shell injection plastic base and the elastic member is provided with an inverted structure that cooperates with each other.
  • the reverse buckle structure includes outwardly protruding fastener teeth disposed on the elastic member and a buckle groove correspondingly disposed on the upper shell injection plastic substrate; or the reverse buckle structure An outwardly protruding fastener tooth disposed on the upper casing plastic base body and a buckle correspondingly disposed on the elastic member Slot.
  • the elastic member is a TPU elastic member or a TPE elastic member or a silica gel.
  • the speaker module provided by the invention has an elastic member formed by one body injection molding at the open end of the front sound chamber or the rear sound chamber of the casing, thereby ensuring the firmness of the elastic member and the shell, and improving the precision of the joint.
  • the speaker module when the speaker module is mounted on the terminal electronic product, the open end of the front or rear acoustic cavity of the speaker module and the corresponding component of the terminal electronic product can be ensured
  • the combined sealing ensures the overall acoustic performance of the electronic product; and the speaker module using this structure also eliminates the process of manually fitting the elastic member, which reduces the labor intensity of the worker and improves the work efficiency. .
  • the manufacturing method of the speaker module can not only solve the above technical problems in a book effect, but also can be promoted to the production of other structures that need to inject soft materials or hard materials into other materials.
  • FIG. 1 is a schematic structural view of a front view of a speaker module according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of a rear view of the speaker module of FIG.
  • FIG. 3 is a perspective exploded view of the speaker module of FIG. 1;
  • Figure 4 is a cross-sectional view showing the structure of the speaker module of Figure 1;
  • FIG. 5 is a schematic structural view of an upper shell injection molding plastic body according to an embodiment of the present invention.
  • Figure 6 is a schematic view showing the structure of an elastomer adapted to the upper shell injection plastic substrate of Figure 5;
  • FIG. 7 is a schematic structural view showing a combination of a speaker module and a binding member on a mobile phone according to an embodiment of the present invention
  • the speaker module comprises a housing and a speaker unit coupled to the interior of the housing, the speaker unit comprises a diaphragm assembly 2 and a magnetic circuit assembly 3, and a front sound chamber and a rear sound chamber are formed between the speaker unit and the housing, wherein the diaphragm
  • the assembly 2 includes a diaphragm 21 and a voice coil 22 coupled to the lower side of the diaphragm 21.
  • the magnetic circuit assembly 3 includes a washer 31, a magnet 32 and a basin frame 33 which are sequentially coupled, and the housing is provided with an elastic member 12, and the elastic member 12
  • the elastic member 12 and the housing are integrally formed by injection molding in combination with the end surface of the front or rear acoustic cavity of the carcass contacting the terminal electronic product. Since the elastic member 12 formed by one body injection molding is provided at the open end of the front or rear acoustic cavity of the casing, the adhesion of the elastic member 12 to the casing is ensured, the bonding precision and stability are improved, and the adhesion is lowered. The possibility that the elastic member 12 falls off is said.
  • the open end of the front acoustic cavity of the speaker module is an sound hole
  • the casing includes the upper shell 1, the middle shell 5 and the lower part.
  • the shell 6, the upper shell 1, the middle shell 5 and the speaker unit enclose the front acoustic cavity of the speaker module
  • the upper shell 1 comprises an upper shell injection plastic base 11, and the open end of the front acoustic chamber is disposed on the upper shell injection plastic substrate 11,
  • the elastic member 12 is correspondingly integrally molded on the open end of the front acoustic cavity on the upper plastic injection substrate 11, and the open end of the front acoustic cavity on the upper plastic injection substrate 11 is combined with the coupling member 7 provided with the sound hole on the mobile phone, and
  • the sound hole 111 of the speaker module is in communication with the sound hole 71 of the mobile phone.
  • the elastic member 12 is integrally molded on the open end of the front acoustic cavity on the upper casing plastic injection body 11, thereby ensuring the sealing property of the joint between the open end of the front acoustic cavity of the speaker module and the coupling member 7 on the mobile phone, thereby effectively preventing The air leakage ensures the acoustic performance of the mobile phone; and the speaker module using this structure also eliminates the manual fitting of the elastic member, which reduces the labor intensity of the worker and improves the work efficiency.
  • the joint portion of the upper casing plastic base 11 and the elastic member 12 is provided with an interlocking structure that cooperates with each other.
  • the inverted structure includes an outwardly convex portion disposed on the elastic member 12.
  • the sprocket 121 and the corresponding buckle 112 disposed on the upper casing plastic base 11 enable the upper casing plastic base 11 and the elastic member 12 to be tightly bonded together and securely fastened. Together, the elastic member 12 can be effectively prevented from being detached from the upper casing plastic injection body 11; similarly, the fasteners of the inverted buckle structure are disposed on the upper casing injection plastic base 11, and the buckle groove is correspondingly disposed on the elastic member 12. Has the same function.
  • the elastic member 12 is injection molded using TPU (thermoplastic polyurethanes) or TPE (Thermoplastic Elastomer, thermoplastic elastomer) or a silicone material to ensure the injection moldability of the elastomer 12 and enhance the same.
  • TPU thermoplastic polyurethanes
  • TPE thermoplastic Elastomer, thermoplastic elastomer
  • silicone material to ensure the injection moldability of the elastomer 12 and enhance the same.
  • the firmness of the bonding between the shell-molded plastic parts 11 ensures the elasticity of the elastomer 12 after injection molding to ensure its sealing effect.
  • the manufacturing method of the above speaker module includes the following steps:
  • the integral structure of the upper shell injection molding base 11 and the elastic member 12 is formed by a two-shot injection molding process, and the upper shell 1 is obtained, specifically comprising the following steps: al. forming an upper shell injection plastic substrate 11 by injection molding;
  • an elastic member 12 is injection-molded at the open end of the front acoustic cavity of the upper shell injection plastic substrate 11, and the elastic member 12 is fused with an upper injection molded plastic substrate 11 formed by injection molding to form an integral structure to obtain an upper shell. 1 ;
  • the upper connector 1 is assembled with the electrical connector, the diaphragm assembly 2, the magnetic circuit assembly 3 and the lower casing 6 in the middle case 5, the middle case 5, and the speaker module is obtained.
  • the electrical connector is a flexible circuit board 4.
  • the speaker module provided by the invention has an elastic member formed by one body injection molding at the open end of the front sound chamber or the rear sound chamber of the casing, thereby ensuring the firmness of the elastic member and the shell, and improving the precision of the joint. And stability, which reduces the possibility of the elastic member falling off; when the speaker module is mounted on the terminal electronic product, the open end of the front or rear acoustic cavity of the speaker module and the corresponding component of the terminal electronic product can be ensured
  • the combined sealing ensures the overall acoustic performance of the electronic product; and the speaker module using this structure also eliminates the manual fitting of the elastic member, which reduces the labor intensity of the worker and improves the working efficiency.
  • the manufacturing method of the speaker module can not only effectively solve the above technical problems, but also can be extended to the production of other structures that need to inject soft materials or hard materials into other materials.

Abstract

本发明涉及电声技术领域，提供了一种扬声器模组及其制造方法，该扬声器模组包括壳体和结合于壳体内部的扬声器单体，扬声器单体包括振膜组件和磁路组件，扬声器单体与壳体之间形成前声腔和后声腔，壳体上设有弹性件，弹性件结合于壳体上前声腔或后声腔的开口端的端面上，弹性件与壳体为注塑形成的一体式结构。使用此种结构的扬声器模组既能减少人工贴合弹性件这一工序，又能保证弹性件结合的精度及稳定性，不易脱落，而且还能有效保证该扬声器模组与终端电子产品组装后扬声器模组的出声孔与手机声孔之间的密封性，提高了声学性能。该扬声器模组的制造方法，不仅能够有效地解决上述技术问题，而且还可推广到其它需要将软性物料或者硬性物料注塑到其他物料中的结构的生产。

Description

一种扬声器模组及其制造方法 技术领域
本发明涉及电声技术领域， 尤其涉及一种扬声器模组及其制造方法。
背景技术
扬声器模组是便携式电子设备中的重要声学部件， 用于将电能转换为声能， 是便携式电子设备的发声部件。 现有技术中， 扬声器模组一般包括壳体以及收 容在该壳体内部的扬声器单体， 扬说声器单体包括振膜组件和磁路组件， 扬声器 模组内设有前声腔和后声腔， 前声腔由壳体正对振膜组件的一侧与振膜组件共 同围成， 后声腔由売体远离前声腔的一侧书与振膜组件共同围成； 对于正面出声 的扬声器模组， 前声腔的开口端设置于壳体上对应前声腔的一侧， 即为出声孔。
以扬声器模组在手机中的应用为例， 扬声器模组的前声腔开口端与手机上 设有声孔的结合件相结合， 并使扬声器模组的出声孔与手机声孔相连通， 还应 保证扬声器模组前声腔的密封性， 防止漏气， 产生性能不良。 一般情况下， 在 扬声器模组的前声腔开口端与手机结合件的结合部设置一个弹性件， 通过达到 一定压缩量进行密封。 弹性件为一个单独的部件， 加工形成后， 需要人工将其 贴合到模组前腔两者结合面， 再与手机等终端电子产品进行组装。
此种设计， 要求弹性件的外形要有规则性， 但是， 不同的终端电子产品与 扬声器模组之间结合部的形状、 结构不同， 而且该结合部的形状不规则， 结构 复杂， 使得其适配的弹性件也具有形状不规则， 结构复杂的特点， 因弹性件硬 度软、 外形复杂而不易成型管控； 并且人工贴合外形复杂的弹性件时， 因要求 精度高， 导致人工效率低， 品质隐患大。 有时由于客户端特殊的组装方式要求， 人工贴合的弹性件在组装时， 容易脱落， 不能达到客户要求。
发明内容
本发明的第一个目的在于提供一种扬声器模组，其即能方便与终端电子产 品之间的安装、 结合， 提高工作效率， 而且弹性体不易脱落， 粘结性好， 又能 保证其前声腔或后声腔的开口端与该终端电子产品相应结合件之间结合的密封 性， 提高声学性能。
一种扬声器模组， 包括壳体和结合于所述壳体内部的扬声器单体， 所述扬 声器单体包括振膜组件和磁路组件， 扬声器单体与所述壳体之间形成前声腔和 后声腔， 所述壳体上设有弹性件， 所述弹性件结合于所述壳体上前声腔或后声 腔的开口端的端面上， 所述弹性件与所述売体为注塑形成的一体式结构。
作为一种改进的方案， 所述壳体包括上壳、 中壳和下壳， 所述上売、 中壳 和扬声器单体围成所述前声腔； 所述上壳包括上壳注塑料基体， 所述上壳注塑 料基体上设有所述前声腔开口端， 所述弹性件对应注塑在所述前声腔开口端上。
作为一种改进的方案， 所述上壳注塑料基体与所述弹性件的结合部设有相 互配合的倒扣结构。 说
作为一种改进的方案， 所述倒扣结构包括设置在所述弹性件上的向外凸出 的扣齿及对应设置在所述上壳注塑料基体书上的扣槽； 或者所述倒扣结构包括设 置在所述上壳注塑料基体上的向外凸出的扣齿及对应设置在所述弹性件上的扣 槽。
作为一种改进的方案， 所述弹性件为 TPU弹性件或 TPE弹性件或硅胶。 本发明的第二个目的在于提供一种上述扬声器模组的制造方法， 包括下述 步骤：
a.通过双射注塑工艺形成所述上壳注塑料基体与所述弹性件的一体式结 构， 制得所述上壳；
b.将所述上壳与所述中壳、 所述中壳内的电连接件、 所述振膜组件、 所述 磁路组件及所述下壳组装在一起， 制得扬声器模组。
作为一种改进的方案， 所述步骤 a包括下述步骤- al.通过一射注塑形成上売注塑料基体；
a2.通过二射注塑， 在所述上壳注塑料基体的前声腔开口端处注塑形成所述 弹性件， 所述弹性件与一射注塑形成的所述上壳注塑料基体融合形成一体结构， 制得所述上壳。
作为一种改进的方案， 所述上壳注塑料基体与所述弹性件的结合部设有相 互配合的倒扣结构。
作为一种改进的方案， 所述倒扣结构包括设置在所述弹性件上的向外凸出 的扣齿及对应设置在所述上壳注塑料基体上的扣槽； 或者所述倒扣结构包括设 置在所述上壳注塑料基体上的向外凸出的扣齿及对应设置在所述弹性件上的扣 槽。
作为一种改进的方案， 所述弹性件为 TPU弹性件或 TPE弹性件或硅胶。 本发明提供的扬声器模组， 由于其在壳体的前声腔或后声腔的开口端设有 与之一体注塑形成的弹性件， 保证了弹性件与壳体结合的牢固性， 提高了结合 的精度以及稳定性， 降低了弹性件脱落的可能性； 将该扬声器模组安装至终端 电子产品上时， 能够保证该扬声器模组前声腔或后声腔的开口端与该终端电子 产品相应结合件之间结合的密封性， 保证了电子产品整体的声学性能； 而且使 用此种结构的扬声器模组也省去了说人工贴合弹性件这一工序， 既减少了工人的 劳动强度， 又能提高工作效率。
该扬声器模组的制造方法不仅能够有书效地解决上述技术问题， 而且还可推 广到其它需要将软性物料或者硬性物料注塑到其他物料中的结构的生产。
附图说明
图 1是本发明实施例提供的扬声器模组的前视方向的结构示意图； 图 2是图 1中的扬声器模组的后视方向的结构示意图；
图 3是图 1中的扬声器模组的立体分解示意图；
图 4是图 1中的扬声器模组的结构剖视示意图；
图 5是本发明实施例提供的上壳注塑料基体的结构示意图；
图 6是与图 5中上壳注塑料基体相适配的弹性体的结构示意图；
图 7 是本发明实施例提供的扬声器模组与手机上的结合件相结合的结构示 意图；
图中： 1-上壳， 11-上売注塑料基体， 111-出声孔， 112-扣槽， 12-弹性件， 121-扣齿， 2-振膜组件， 21-振膜， 22-音圈， 3-磁路组件， 31-华司， 32-磁铁， 33-盆架， 4-柔性线路板， 5-中壳， 6-下壳， 7-结合件， 71-声孔。
具体实施方式
为了使本发明的目的、 技术方案及优点更加清楚明白， 以下结合附图及实 施例， 对本发明进行进一步详细说明。 应当理解， 此处所描述的具体实施例仅 仅用以解释本发明， 并不用于限定本发明。
图 1至图 4共同示出了本发明实施例提供的扬声器模组的结构示意图， 为 了便于说明， 本图仅提供与本发明有关的结构部分。 扬声器模组包括壳体和结合于壳体内部的扬声器单体， 扬声器单体包括振 膜组件 2和磁路组件 3， 扬声器单体与壳体之间形成前声腔和后声腔， 其中， 振 膜组件 2包括振膜 21和结合于振膜 21下侧的音圈 22， 磁路组件 3包括依次结 合的华司 31、 磁铁 32和盆架 33， 壳体上设有弹性件 12， 弹性件 12结合于売体 上前声腔或后声腔的开口端与终端电子产品接触的端面上， 弹性件 12与壳体为 注塑形成的一体式结构。 由于其在壳体的前声腔或后声腔的开口端设有与之一 体注塑形成的弹性件 12， 保证了弹性件 12与壳体的粘结性， 提高了粘结精度以 及稳定性， 降低了弹性件 12脱落说的可能性。
以该扬声器模组在手机中的应用为例， 如图 5至图 7所示， 该扬声器模组 的前声腔开口端即为出声孔， 壳体包括上壳书 1、 中壳 5和下壳 6， 上壳 1、 中壳 5和扬声器单体围成该扬声器模组的前声腔， 上壳 1包括上壳注塑料基体 11， 前声腔开口端即设置于上壳注塑料基体 11上， 弹性件 12则对应地一体注塑在 上壳注塑料基体 11上的前声腔开口端处， 上壳注塑料基体 11上的前声腔开口 端与手机上设有声孔的结合件 7相结合， 并使扬声器模组的出声孔 111与手机 声孔 71相连通。 将弹性件 12—体注塑在上壳注塑料基体 11上的前声腔开口端 处， 能够保证该扬声器模组的前声腔开口端与手机上的结合件 7 之间结合的密 封性， 有效地防止漏气， 保证了该手机的声学性能； 而且使用此种结构的扬声 器模组也省去了人工贴合弹性件这一工序， 既减少了工人的劳动强度， 又能提 高工作效率。
在该实施例中， 在上壳注塑料基体 11与弹性件 12的结合部设有相互配合 的倒扣结构， 在该实施例中， 倒扣结构包括设置在弹性件 12上的向外凸出的扣 齿 121及对应设置在上壳注塑料基体 11上的扣槽 112， 则可使上壳注塑料基体 11与弹性件 12之间既能够紧密地粘结在一起， 又能牢固地扣合在一起， 能够有 效地防止弹性件 12与上壳注塑料基体 11脱离； 同理， 将倒扣结构的扣齿设置 在上壳注塑料基体 11上， 并在弹性件 12上对应设置扣槽也具有相同的功能。
在该实施例中， 使用 TPU ( Thermoplastic polyurethanes , 热塑性聚氨酯） 或 TPE (Thermoplastic Elastomer , 热塑性弹性体） 或硅胶材料注塑形成弹性 件 12， 既能保证弹性体 12的可注塑性， 增强了其与上壳注塑料件基体 11之间 结合的牢固性， 又能保证弹性体 12在注塑后的弹性， 保证其密封效果。 上述扬声器模组的制造方法包括下述步骤：
a.通过双射注塑工艺形成上壳注塑料基体 11与弹性件 12的一体式结构， 制得上壳 1， 具体包括下述步骤- al.通过一射注塑形成上壳注塑料基体 11 ;
a2.通过二射注塑， 在上壳注塑料基体 11 的前声腔开口端处注塑形成弹性 件 12， 弹性件 12与一射注塑形成的上壳注塑料基体 11融合形成一体结构， 制 得上壳 1 ;
b.将上売 1与中壳 5、 中壳 5说内的电连接件、 振膜组件 2、 磁路组件 3及下 壳 6组装在一起， 制得扬声器模组。 在该实施例中， 电连接件为柔性线路板 4。
采用此种双射注塑法制成的上壳注塑料书基体 11与弹性件 12的一体式的上 壳 1，将人工难以贴合的结构复杂的弹性件 12直接注塑到上壳注塑料基体 11中， 这样， 弹性件 12就不必作为单独的一个部件进行人工粘贴， 而且还可以根据需 要注塑结构更为复杂的弹性件结构， 保证了弹性件 12与上壳注塑料基体 11 的 粘结性， 提高了粘结精度以及稳定性， 降低了弹性件 12脱落的可能性； 而且还 省去了人工贴合弹性件 12这一工序， 既减少了人工成本， 又能提高工作效率； 将组装完成后的扬声器模组安装至终端电子产品上时能够保持该扬声器模 组的前声腔或后声腔开口端与该终端电子产品的结合件 7 之间的结合部具有良 好的密封性， 保证了该终端电子产品整体的声学性能； 该扬声器模组的制造方 法不仅能够有效地解决上述技术问题， 而且还可推广到其它需要将软性物料或 者硬性物料注塑到其他物料中的结构的生产。
本发明提供的扬声器模组， 由于其在壳体的前声腔或后声腔的开口端设有 与之一体注塑形成的弹性件， 保证了弹性件与壳体结合的牢固性， 提高了结合 的精度以及稳定性， 降低了弹性件脱落的可能性； 将该扬声器模组安装至终端 电子产品上时， 能够保证该扬声器模组前声腔或后声腔的开口端与该终端电子 产品相应结合件之间结合的密封性， 保证了电子产品整体的声学性能； 而且使 用此种结构的扬声器模组也省去了人工贴合弹性件这一工序， 既减少了工人的 劳动强度， 又能提高工作效率。
该扬声器模组的制造方法不仅能够有效地解决上述技术问题， 而且还可推 广到其它需要将软性物料或者硬性物料注塑到其他物料中的结构的生产。 说 明 书
以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发 明的精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含在本发明 的保护范围之内。

Claims

权 利 要 求 书
1、 一种扬声器模组， 包括壳体和结合于所述売体内部的扬声器单体， 所述 扬声器单体包括振膜组件和磁路组件， 扬声器单体与所述壳体之间形成前声腔 和后声腔， 其特征在于： 所述壳体上设有弹性件， 所述弹性件结合于所述壳体 上前声腔或后声腔的开口端的端面上， 所述弹性件与所述壳体为注塑形成的一 体式结构。
2、 如权利要求 1所述的扬声器模组， 其特征在于： 所述壳体包括上壳、 中 壳和下壳， 所述上壳、 中壳和扬声器单体围成所述前声腔； 所述上壳包括上壳 注塑料基体， 所述上壳注塑料基体上设有所述前声腔开口端， 所述弹性件对应 注塑在所述前声腔开口端上。
3、 如权利要求 2所述的扬声器模组， 其特征在于： 所述上壳注塑料基体与 所述弹性件的结合部设有相互配合的倒扣结构。
4、 如权利要求 3所述的扬声器模组， 其特征在于： 所述倒扣结构包括设置 在所述弹性件上的向外凸出的扣齿及对应设置在所述上壳注塑料基体上的扣 槽； 或者所述倒扣结构包括设置在所述上壳注塑料基体上的向外凸出的扣齿及 对应设置在所述弹性件上的扣槽。
5、 如权利要求 1至 4任一项所述的扬声器模组， 其特征在于： 所述弹性件 为 TPU弹性件或 TPE弹性件或硅胶。
6、 如权利要求 2所述的扬声器模组的制造方法， 其特征在于： 包括下述步 骤- a.通过双射注塑工艺形成所述上売注塑料基体与所述弹性件的一体式结 构， 制得所述上壳；
b.将所述上壳与所述中壳、 所述中壳内的电连接件、 所述振膜组件、 所述 磁路组件及所述下壳组装在一起， 制得扬声器模组。
7、 如权利要求 6所述的扬声器模组的制造方法， 其特征在于， 所述步骤 a 包括下述步骤：
al.通过一射注塑形成上壳注塑料基体；
a2.通过二射注塑， 在所述上壳注塑料基体的前声腔开口端处注塑形成所述 弹性件， 所述弹性件与一射注塑形成的所述上壳注塑料基体融合形成一体结构， 权 利 要 求 书 制得所述上壳。
8、 如权利要求 6或 7所述的扬声器模组的制造方法， 其特征在于： 所述上 壳注塑料基体与所述弹性件的结合部设有相互配合的倒扣结构。
9、 如权利要求 8所述的扬声器模组的制造方法， 其特征在于： 所述倒扣结 构包括设置在所述弹性件上的向外凸出的扣齿及对应设置在所述上壳注塑料基 体上的扣槽； 或者所述倒扣结构包括设置在所述上壳注塑料基体上的向外凸出 的扣齿及对应设置在所述弹性件上的扣槽。
10、 如权利要求 9所述的扬声器模组的制造方法， 其特征在于： 所述弹性 件为 TPU弹性件或 TPE弹性件或硅胶。
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US9838816B2 (en) 2017-12-05
US20160309272A1 (en) 2016-10-20
CN103618984A (zh) 2014-03-05
KR20160086385A (ko) 2016-07-19
CN103618984B (zh) 2017-04-26

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