WO2014169630A1 - 音圈马达组件线圈与弹片的组装结构及其组装工艺 - Google Patents

音圈马达组件线圈与弹片的组装结构及其组装工艺 Download PDF

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Publication number
WO2014169630A1
WO2014169630A1 PCT/CN2013/087043 CN2013087043W WO2014169630A1 WO 2014169630 A1 WO2014169630 A1 WO 2014169630A1 CN 2013087043 W CN2013087043 W CN 2013087043W WO 2014169630 A1 WO2014169630 A1 WO 2014169630A1
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WIPO (PCT)
Prior art keywords
coil
assembly
wound
convex
motor assembly
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PCT/CN2013/087043
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English (en)
French (fr)
Inventor
沈文振
吴承諹
刘善木
张建龙
卢煌杰
黄芳
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厦门新鸿洲精密科技有限公司
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Publication of WO2014169630A1 publication Critical patent/WO2014169630A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/071—Winding coils of special form
    • H01F41/074—Winding flat coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/076—Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core

Definitions

  • the invention relates to a method for manufacturing a voice coil motor assembly, in particular to an assembly structure of a coil of a voice coil motor assembly and a spring piece and an assembly process thereof.
  • the voice coil motor assembly (VoiceCoilMotor, VCM) is suitable as a short-distance drive device in electronic products such as digital cameras and mobile phones.
  • the commonly used voice coil motor assembly mainly comprises a fixing component disposed in the housing and a movable component sleeved in the fixing component and moving relative to the fixing component, the fixing component comprises a spring piece, a magnet and a spacer for fixing the magnet; and the movable component A bracket and a coil wound around the bracket are included.
  • the current contact mode of the conventional VCM coil 6 ′ with the elastic piece 7 ′ is manually operated, that is, after the winding of the coil 6 ′ is completed at the end of the bracket 5 ′, the head end of the starting end or the ending end is offset, and the Manually adjusting the drawing line after the winding is completed, and welding can be performed on the elastic piece 7' above the bracket 5' for manual welding.
  • the assembly process of the current coil 6' and the elastic piece 7' is relatively complicated and artificial.
  • the limitation of operation is time-consuming and labor-intensive, and the production cost is high.
  • the lap welding method of the extracted wire end and the elastic piece 7' is the contact welding of the wire and the surface, and the welding area is small, when the product is subjected to strength or rolling test, Or it can be assembled in electronic products, and the lap welding position of the wire ends is easily broken to affect the product quality.
  • the object of the present invention is to provide an assembly structure of a coil and a shrapnel of a voice coil motor assembly and an assembly process thereof, which can effectively improve the production efficiency of the assembly of the coil and the shrapnel, and at the same time improve the firmness of assembly of the coil and the shrapnel to ensure product quality.
  • the solution of the present invention is:
  • An assembly structure of a coil motor assembly coil and a spring piece comprising a coil holder, a coil wound on the coil holder, and opposite two lower elastic pieces fitted on the upper part of the coil holder;
  • the coil holder is a sleeve, and the upper end thereof is The lower end respectively forms an upper convex edge and a lower convex edge, and a support body for winding the coil between the upper convex edge and the lower convex edge, wherein: the upper convex portion is provided with at least two opposite convex legs along the radial direction on the outer edge, and the coil is The starting end and the closing end are respectively wound on the opposite two convex legs, and the two lower elastic pieces are respectively welded with the coils on the two convex legs.
  • the coil support is a nearly square sleeve, and the opposite sides are provided with two convex legs and are evenly arranged.
  • the protruding leg forms a notch along the root thereof, and the groove bottom of the notch is flush with the supporting body, and the protruding leg having the groove forms the starting end of the coil winding.
  • a process for assembling a coil of a voice coil motor assembly and a shrapnel the specific steps are as follows:
  • Step 1 the coil is wound on the coil bracket, and the starting end and the closing end of the coil are respectively wound on the opposite convex legs of the coil bracket;
  • Step 2 The two lower elastic pieces are mounted on the upper surface of the coil support by using automatic equipment, and the two lower elastic pieces are respectively stacked on the opposite convex legs of the coil support;
  • Step 3 placing the coil holder laminated with the lower elastic piece in the welding device, and performing a solder paste at a position where the two elastic pieces are in contact with the two convex legs, that is, a contact position between the lower elastic piece and the coil;
  • Step 4. Soldering on the solder paste or laser welding reinforcement completes the assembly of the coil of the voice coil motor assembly and the shrapnel.
  • the coil holder wound with the coil is first loaded into the tool, and the upper surface is locally dispensed; then the two lower elastic pieces are mounted on the upper surface of the coil holder by using automatic equipment, and the two elastic pieces are respectively laminated.
  • the baking pre-fixing is performed; and the coil holders which are pre-fixed with the lower elastic pieces are taken out and placed in the welding equipment for spot solder paste.
  • the laser welding in the step 4 is performed by using a segmented temperature.
  • the segmented temperature control is set to a two-stage temperature: the first stage temperature is set to 0-170 ° C; the second stage temperature is set to 240 ° C or more.
  • the solder paste is spotted on the portion to be soldered, and the area and position of the solder paste are scanned by the CCD camera. After the scanning is completed, the segmented temperature is used for welding.
  • the present invention provides two opposite protrusions on the coil bobbin wound by the coil, so that when the coil is wound on the coil bobbin, the coil can be first wound on the lug and then placed along the support of the coil bobbin.
  • FIG. 1 is a partial cross-sectional view showing the assembly of a coil and a spring piece in a conventional voice coil motor assembly
  • Figure 2 is an exploded perspective view of the voice coil motor assembly of the present invention
  • Figure 3 is a perspective view showing the structure of the coil holder of the present invention.
  • Figure 4 is a perspective view showing the structure of the coil bracket with the elastic piece of the present invention.
  • Figure 5 is a cross-sectional view showing a partial structure of a coil-fitted elastic piece of the present invention.
  • the present invention discloses an assembly structure of a voice coil motor assembly coil and a spring piece.
  • the voice coil motor assembly includes a casing 1, a gasket 3 for fixing the magnet 2, and a gasket.
  • the upper elastic piece 4, the one coil holder 5, the coil 6 wound on the coil holder 5, and the two lower elastic pieces 7 fitted on the coil holder 5, and the two lower elastic pieces 7 are welded to the terminal 8 and fixed to the upper cover 9.
  • the outer ring of the upper elastic piece 4, the magnet 2 and the spacer 3 and the outer ring of the two lower elastic pieces 7 constitute a fixed assembly; and the coil support 5 around which the coil 6 is wound and the inner ring of the two lower elastic pieces 7 and the inner ring of the upper elastic piece 4 constitute a movable assembly;
  • the outer casing 1 and the upper cover 9 form a chamber to accommodate the various components listed.
  • the coil holder 5 is a sleeve, which may be square or circular, and has an upper convex edge 51 and a lower convex edge 52 respectively at the upper end and the lower end, and between the upper convex edge 51 and the lower convex edge 52.
  • the two lower elastic pieces 7 are respectively welded to the coils on the two convex legs 511.
  • the coil holder 5 is a square sleeve, and a convex leg 511 is disposed on each of the four sides, and is evenly arranged to achieve balance.
  • One of the protrusions 511 defines a notch 512 along the root thereof.
  • the bottom of the notch 512 is flush with the support body 53.
  • the protrusion 511 having the notch 512 forms the starting end of the winding of the coil 6.
  • the wire end of the starting end 61 of the coil 6 is first wound on the protruding leg 511 for one or more rounds to avoid the offset of the starting end 61, and then wound along the support body 53 due to the setting of the missing slot 512. It can be ensured that the coil 6 can be closely attached to the support body 53 when being wound along the support body 53 to ensure the tightness of the winding of the coil 6. After the winding of the coil 6 is completed, the tail end 62 can be wound around the starting end.
  • the other leg 511 opposite to the foot 511 is simultaneously fixed on the protrusion 511 by one or more turns.
  • the assembly process of the coil motor assembly coil and the elastic piece of the present invention has the following specific steps:
  • Step 1 the coil 6 is wound on the coil holder 5, the start end 61 and the end end 62 of the coil 6 are respectively wound on the opposite legs 511 of the coil holder 5;
  • Step 2 the coil holder 5 wound with the coil 6 is loaded into the tool, and the upper surface is locally dispensed to fix the lower elastic piece 7;
  • Step 3 the two lower elastic pieces 7 are mounted on the upper surface of the coil holder 5 by using an automatic device, and the two lower elastic pieces 7 are respectively stacked on the opposite convex legs 511 of the coil holder 5 for baking pre-fixing;
  • Step 4 taking out the coil holder 5 which is pre-fixed with the lower elastic piece 7 and placing it in the welding device, and performing the spot soldering at the position where the two elastic pieces 7 are in contact with the two convex legs 511, that is, the contact position of the lower elastic piece 7 and the coil 6. ;
  • Step 5 Soldering on the solder paste or laser welding reinforcement completes the assembly of the coil of the voice coil motor assembly and the shrapnel.
  • step 2 does not need to be set, and in step 3, the pre-fixing of the baking is not required, and the coil holder 5 in which the lower elastic piece 7 is laminated may be directly soldered.
  • the laser welding in the step 5 can further realize the problem of no tin explosion.
  • the solder paste is spotted on the part to be soldered, and the area and position of the solder paste are scanned by the CCD camera. After the scanning is completed, the segmented temperature is used for welding. .
  • the segmented temperature control is set to a two-stage temperature: the first stage temperature is set to 0-170 ° C, and the temperature is slowly increased by continuous light, and the purpose is to slowly gasify the rosin first; It is set to 240 ° C or above, and the temperature of this section is reached by the instantaneous high temperature of the pulsed light to reach the temperature of the soldering of the tin bead, thereby completing the entire welding action.
  • the assembly structure of the voice coil motor assembly coil and the elastic piece of the present invention is provided with the opposite two protrusions 511 on the coil holder 5 wound around the coil 6, so that the coil 6 can be wound on the coil holder 5 when After being wound on the protrusion 511, the winding is performed along the coil support body 53 to avoid the offset of the starting end 61, and there is no need to carry out the process of the manual secondary drawing as in the prior art, and the closing end 62 is also Winding on the other protruding leg 511, the assembly of the coil and the elastic piece is simple, and the manufacturing cost is effectively reduced; the lower elastic piece 7 is realized by the automatic device operation and matched on the coil support 5, and is flattened with the coil wound around the convex foot 511.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

一种音圏马达组件线圏与弹片的组装结构及其组装工艺，组装结构包括线圏支架（5）、缠绕在线圏支架（5）上的线圏（6）以及设置在线圏支架（5）上的相对的两个下弹片（7）；线圏支架（5）的上凸沿（51）外缘沿径向设有至少两个相对的凸脚（511），线圏起始端（61）和收尾端（62）分别缠绕在两个凸脚（511）上，两个下弹片（7）分别与两个凸脚（511）上的线圏焊接。线圏（6）在缠绕于线圏支架（5）时，先缠绕在凸脚（511）上定位，然后沿线圏支架（5）缠绕。组装结构及其组装工艺可以提高线圏与弹片组装的生产效率，提高线圏与弹片组装的牢固性。

Description

音圈马达组件线圈与弹片的组装结构及其组装工艺 技术领域
本发明涉及一种音圈马达组件的制作方法，特别是指一种音圈马达组件线圈与弹片的组装结构及其组装工艺。
背景技术
音圈马达组件（VoiceCoilMotor，VCM）适合作为如数码相机、手机等电子产品中的短距驱动装置。
常用的音圈马达组件主要包括置于壳体中的固定组件及套置于固定组件中并相对固定组件运动的可动组件，固定组件包括弹片、磁体及固定磁体的垫片；而可动组件包括一支架及缠绕在支架上的线圈。配合图1所示，目前传统VCM线圈6'与弹片7'的接触方式是人工操作，即线圈6'在绕线于支架5'结束后，起始端或收尾端的线头会发生偏移，必须借助人工在绕线结束后进行二次调整抽线，方可搭焊在支架5'上方的弹片7'上进行人工焊接，因此，目前的线圈6'与弹片7'的组装工艺相对复杂，受人工操作的局限，造成费时费工，制作成本居高不下；另外，抽出的线头与弹片7'的搭焊方式，是线与面的接触焊接，焊接面积小，在产品进行强度或滚动测试时，亦或组装于电子产品中，线头的搭焊位置容易断开而影响产品品质。
发明内容
本发明的目的是提供一种音圈马达组件线圈与弹片的组装结构及其组装工艺，其可有效提高线圈与弹片组装的生产效率，同时提高线圈与弹片组装的牢固性以保证产品品质。
为实现上述目的，本发明的解决方案是：
一种音圈马达组件线圈与弹片的组装结构，其包括一线圈支架、缠绕在线圈支架上的线圈及配合在线圈支架上部的相对的两下弹片；该线圈支架为一套筒，其上端与下端分别形成上凸沿、下凸沿，上凸沿与下凸沿之间为供线圈缠绕的支撑体，其中：上凸沿外缘上沿径向设有至少相对的两凸脚，线圈的起始端与收尾端分别缠绕在相对的两凸脚上，两下弹片分别与两凸脚上的线圈焊接。
所述线圈支架为一近方形的套筒，其相对面的边上设有两凸脚，并且呈均匀配置。
所述凸脚沿其根部形成一缺槽，此缺槽的槽底与支撑体平齐，此具有缺槽的凸脚形成线圈绕线的起始端。
一种音圈马达组件线圈与弹片的组装工艺，具体步骤为：
步骤1、将线圈缠绕在线圈支架上，线圈的起始端与收尾端分别缠绕在线圈支架相对的两凸脚上；
步骤2、将两相对的下弹片采用自动化设备装在线圈支架的上表面，两下弹片分别叠压在线圈支架相对的两凸脚上；
步骤3、将叠压有下弹片的线圈支架置于焊接设备中，在两下弹片与两凸脚接触的位置，即下弹片与线圈的接触位置进行点锡膏；
步骤4、在锡膏上焊锡或者激光焊接加固，便完成了音圈马达组件线圈与弹片的组装。
所述步骤1之后先将缠绕有线圈的线圈支架装入冶具中，其上表面进行局部点胶；之后将两相对的下弹片采用自动化设备装在线圈支架的上表面，两下弹片分别叠压在线圈支架对的两凸脚上，进行烘烤预固定；再将完成预固定有下弹片的线圈支架取出置于焊接设备中进行点锡膏。
所述步骤4中进行激光焊接采用分段式温度进行焊接。
所述分段式温度控制是设置为两段式温度：第一段温度是设置为0-170℃；第二段温度是设置为240℃以上。
所述步骤5中激光焊接时将锡膏点在需要焊接的部位，用CCD摄像头扫描锡膏的面积和位置，扫描完成后采用分段式温度进行焊接。
采用上述方案后，本发明通过在线圈缠绕的线圈支架上设有相对的两凸脚，令线圈在缠绕于线圈支架上时，可先缠绕在凸脚上定位后再进行沿线圈支架支撑体的缠绕，避免起始端线头的偏移，无需进行如现有技术中人工二次抽线头的工序，同时令收尾端亦缠绕在另一凸脚上，令线圈与弹片的组配加工简单，有效降低制作成本；令下弹片实现自动化设备操作配合在线圈支架上，与缠绕在凸脚上的线圈贴平锡焊，并且实现自动化设备的焊接组装，大大提高生产效率，由于凸脚上的线圈与下弹片的接触面积大，因此二者之间的接合更牢固，不会出现断开的问题，保证音圈马达组件产品品质。
另外，采用音激光分段式焊接，避免出现爆锡问题，进一步提升音圈马达组件产品品质。
附图说明
图1为传统音圈马达组件中线圈与弹片的组装局部剖视图；
图2为本发明音圈马达组件的结构分解图；
图3为本发明线圈支架的结构立体图；
图4为本发明线圈支架配合弹片的结构立体图；
图5为本发明线圈配合弹片的局部结构剖视图。
具体实施方式
以下结合附图对本发明作进一步详述。
如图2至图5所示，本发明揭示了一种音圈马达组件线圈与弹片的组装结构，该音圈马达组件包括一外壳1、一固定磁体2的垫片3、一配合在垫片3的上弹片4、一线圈支架5、缠绕在线圈支架5上的线圈6、配合在线圈支架5上相对的两下弹片7，两下弹片7与端子8焊接后固定在上盖9上。上弹片4外圈、磁体2及垫片3及两下弹片7外圈构成固定组件；而缠绕有线圈6的线圈支架5及两下弹片7内圈与上弹片4内圈构成可动组件；外壳1与上盖9形成腔室以容置所列各部件。
本发明的关键在于：该线圈支架5为一套筒，可为方形或圆形，其上端与下端分别形成上凸沿51、下凸沿52，上凸沿51与下凸沿52之间为供线圈6缠绕的支撑体53，其中上凸沿51外缘上沿径向设有至少相对的两凸脚511，线圈6的起始端61与收尾端62分别缠绕在相对的两凸脚511上，两下弹片7分别与两凸脚511上的线圈焊接。
此实施例中以线圈支架5为方形套筒为例，其四个边上均设有一凸脚511，并且呈均匀配置，以达平衡作用。
其中一凸脚511沿其根部形成一缺槽512，此缺槽512的槽底与支撑体53平齐，此具有缺槽512的凸脚511便形成线圈6绕线的起始端，在实施绕线时，线圈6起始端61的线头先在此凸脚511上进行缠绕一圈或多圈后定位，避免起始端61线头的偏移，再沿支撑体53进行缠绕，因缺槽512的设置，可保证线圈6在沿支撑体53缠绕时即可紧贴支撑体53进行，保证线圈6缠绕的紧实性，待绕圈6缠绕完成后，其收尾端62即可缠绕在与起始端凸脚511相对的另一凸脚511上，并且同时在此凸脚511上再进行一圈或多圈的缠绕实现固定。
本发明音圈马达组件线圈与弹片的组装工艺，其具体步骤为：
步骤1、将线圈6缠绕在线圈支架5上，线圈6的起始端61与收尾端62分别缠绕在线圈支架5相对的两凸脚511上；
步骤2、将缠绕有线圈6的线圈支架5装入冶具中，其上表面进行局部点胶，以便固定下弹片7；
步骤3、将两相对的下弹片7采用自动化设备装在线圈支架5的上表面，两下弹片7分别叠压在线圈支架5相对的两凸脚511上，进行烘烤预固定；
步骤4、将完成预固定有下弹片7的线圈支架5取出置于焊接设备中，在两下弹片7与两凸脚511接触的位置，即下弹片7与线圈6的接触位置进行点锡膏；
步骤5、在锡膏上焊锡或者激光焊接加固，便完成了音圈马达组件线圈与弹片的组装。
当然，上述步骤2无需设置，则步骤3中便无需进行烘烤预固定，直接将叠压有下弹片7的线圈支架5进行点锡膏亦可。
所述步骤5中进行激光焊接可以进一步实现不出现爆锡问题，焊接时将锡膏点在需要焊接的部位，用CCD摄像头扫描锡膏的面积和位置，扫描完成后采用分段式温度进行焊接。
所述分段式温度控制是设置为两段式温度：第一段温度是设置为0-170℃，此段温度采用连续光缓慢升高温度，目的先将松香缓慢气化；第二段温度是设置为240℃以上，此段温度采用脉冲光瞬间高温达到锡珠液化焊接的温度，从而完成整个焊接的动作。
综上所述，本发明音圈马达组件线圈与弹片的组装结构，通过在线圈6缠绕的线圈支架5上设有相对的两凸脚511，令线圈6在缠绕于线圈支架5上时，可先缠绕在凸脚511上定位后再进行沿线圈支架支撑体53的缠绕，避免起始端61线头的偏移，无需进行如现有技术中人工二次抽线头的工序，同时令收尾端62亦缠绕在另一凸脚511上，令线圈与弹片的组配加工简单，有效降低制作成本；令下弹片7实现自动化设备操作配合在线圈支架5上，与缠绕在凸脚511上的线圈贴平锡焊，并且实现自动化设备的焊接组装，大大提高生产效率，由于凸脚511上的线圈与下弹片7的接触面积大，因此二者之间的接合更牢固，不会出现断开的问题，保证音圈马达组件产品品质。
另外，采用音激光分段式焊接，避免出现爆锡问题，进一步提升音圈马达组件产品品质。
以上所述，仅为本发明较佳实施例而已，故不能依此限定本发明实施的范围，即依本发明专利范围及说明书内容所作的等效变化与修饰，皆应仍属本发明涵盖的范围内。

Claims (8)

1、一种音圈马达组件线圈与弹片的组装结构，其包括一线圈支架、缠绕在线圈支架上的线圈及配合在线圈支架上部的相对的两下弹片；该线圈支架为一套筒，其上端与下端分别形成上凸沿、下凸沿，上凸沿与下凸沿之间为供线圈缠绕的支撑体，其特征在于：上凸沿外缘上沿径向设有至少相对的两凸脚，线圈的起始端与收尾端分别缠绕在相对的两凸脚上，两下弹片分别与两凸脚上的线圈焊接。
2、如权利要求1所述的音圈马达组件线圈与弹片的组装结构，其特征在于：所述线圈支架为一近方形的套筒，其相对面的边上设有两凸脚，并且呈均匀配置。
3、如权利要求1或2所述的音圈马达组件线圈与弹片的组装结构，其特征在于：所述凸脚沿其根部形成一缺槽，此缺槽的槽底与支撑体平齐，此具有缺槽的凸脚形成线圈绕线的起始端。
4、一种音圈马达组件线圈与弹片的组装工艺，具体步骤为：
步骤1、将线圈缠绕在线圈支架上，线圈的起始端与收尾端分别缠绕在线圈支架相对的两凸脚上；
步骤2、将两相对的下弹片采用自动化设备装在线圈支架的上表面，两下弹片分别叠压在线圈支架相对的两凸脚上；
步骤3、将叠压有下弹片的线圈支架置于焊接设备中，在两下弹片与两凸脚接触的位置，即下弹片与线圈的接触位置进行点锡膏；
步骤4、在锡膏上焊锡或者激光焊接加固，便完成了音圈马达组件线圈与弹片的组装。
5、如权利要求4所述的音圈马达组件线圈与弹片的组装工艺，其特征在于：所述步骤1之后先将缠绕有线圈的线圈支架装入冶具中，其上表面进行局部点胶；之后将两相对的下弹片采用自动化设备装在线圈支架的上表面，两下弹片分别叠压在线圈支架对的两凸脚上，进行烘烤预固定；再将完成预固定有下弹片的线圈支架取出置于焊接设备中进行点锡膏。
6、如权利要求4或5所述的音圈马达组件线圈与弹片的组装工艺，其特征在于：所述步骤4中进行激光焊接采用分段式温度进行焊接。
7、如权利要求6所述的音圈马达组件线圈与弹片的组装工艺，其特征在于：所述分段式温度控制是设置为两段式温度：第一段温度是设置为0-170℃；第二段温度是设置为240℃以上。
8、如权利要求6所述的音圈马达组件线圈与弹片的组装工艺，其特征在于：所述步骤5中激光焊接时将锡膏点在需要焊接的部位，用CCD摄像头扫描锡膏的面积和位置，扫描完成后采用分段式温度进行焊接。
PCT/CN2013/087043 2013-04-16 2013-11-13 音圈马达组件线圈与弹片的组装结构及其组装工艺 WO2014169630A1 (zh)

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