CN102413413B - Manufacture method of electroacoustic transducer - Google Patents
Manufacture method of electroacoustic transducer Download PDFInfo
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- CN102413413B CN102413413B CN201110424489.1A CN201110424489A CN102413413B CN 102413413 B CN102413413 B CN 102413413B CN 201110424489 A CN201110424489 A CN 201110424489A CN 102413413 B CN102413413 B CN 102413413B
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- outer magnet
- board
- housing
- upper conduction
- electroacoustic transducer
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Abstract
The invention provides a manufacture method of an electroacoustic transducer. The method comprises the following steps of: 1, providing an external magnet which is provided with at least two opening ends; 2, providing an annular upper magnetism guiding plate, performing injection molding on the upper magnetism guiding plate to form a shell, and integrally forming positioning parts corresponding to the opening ends of the external magnet on the shell; 3, bonding the external magnet to a side close to the bottom of the shell, of the upper magnetism guiding plate, and spacing the external magnet by the positioning parts on the shell; 4, providing a lower magnetism guiding plate, bonding the lower magnetism guiding plate to the bottom far from the upper magnetism guiding plate, of the external magnet; 5, providing an internal magnet and an internal magnetism guiding plate, and bonding the internal magnet and the internal magnetism guiding plate to a side close to the upper magnetism guiding plate, of the lower magnetism guiding plate; and 6, providing a vibration system and bonding the vibration system to the shell. According to the manufacture method of the electroacoustic transducer, a magnetic circuit system can be accurately positioned, and the electroacoustic transducer can be easily assembled.
Description
Technical field
The present invention relates to electroacoustic field, be specifically related to a kind of manufacture method of electroacoustic transducer.
Background technology
Now, portable consumer electronics product is used widely, and wherein, the electroacoustic transducer as important acoustical device is also widely used in portable consumer electronics product.The electroacoustic transducer of two magnetic route structure generally includes internal magnetic circuit and the external magnetic circuit around described internal magnetic circuit, and outer magnet adopts closed loop configuration usually.Improve as one, the outer magnet in external magnetic circuit can adopt the design of disconnection, and this design can save cost.If the patent No. is the content disclosed in the patent of CN201020668465.1, the mode of slow wire feeding can be adopted to cut from the outer side edges of magnet material, continue wire cutting after cutting opening and form outer magnet, and remaining magnet material can form inner magnet after cutting, can raw material be saved thus can cost be saved.
For the magnetic circuit system that traditional outer magnet is annular, be combined with housing injection moulding after normally the outer magnet of external magnetic circuit system, upper conduction magnetic board and lower magnetic conductive board being combined, if the patent No. is content disclosed in the Chinese patent of CN201020267972.4.But the outer magnet design for this disrupted configuration that can be cost-saving is not easily located due to outer magnet and is difficult to produce by traditional manufacture method.Therefore, be necessary to improve this traditional manufacture method, to avoid above-mentioned defect.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of manufacture method of electroacoustic transducer, and magnetic circuit system can be located accurately, makes the packaging technology of product be easy to realize.
To achieve these goals, the invention provides a kind of electroacoustic transducer, wherein, comprise the following steps:
Step one, provides an outer magnet, the structure that described outer magnet is off, has at least two openends;
Step 2, provides the upper conduction magnetic board that annular, and on upper conduction magnetic board, injection moulding forms housing, described housing is integrally formed the location division of corresponding described outer magnet openend;
Step 3, described outer magnet is incorporated into the side of described upper conduction magnetic board near described housing bottom, described outer magnet is limited by the location division on described housing.
Step 4, provides a lower magnetic conductive board, lower magnetic conductive board is incorporated into the bottom of described outer magnet away from described upper conduction magnetic board;
Step 5, provides an inner magnet and interior magnetic conductive board, inner magnet and interior magnetic conductive board is incorporated into the side near described upper conduction magnetic board on described lower magnetic conductive board;
Step 6, provides a vibrational system, vibrational system is combined with described housing.
In addition, preferred scheme is, in step one, the openend of outer magnet is four.
In addition, preferred scheme is, housing described in step 2 is rectangle, and four bights of described rectangular housing are provided with four location divisions of the described outer magnet in location.
In addition, preferred scheme is, described location division is arranged between described upper conduction magnetic board and described lower magnetic conductive board.
In addition, preferred scheme is, is provided with the extension to extending away from described upper conduction magnetic board direction outside upper conduction magnetic board described in step one.
In addition, preferred scheme is, described extension is provided with through hole.
After adopting technique scheme, compared with traditional structure, magnetic circuit system of the present invention can be located accurately, makes the assembling of electroacoustic transducer be easy to realize.
Accompanying drawing explanation
By being described embodiment below in conjunction with accompanying drawing, above-mentioned characteristic sum technological merit of the present invention will become apparent and easy understand.
Fig. 1 is the perspective exploded view of electroacoustic transducer of the present invention;
Fig. 2 is the perspective view of electroacoustic transducer upper conduction magnetic board of the present invention;
Fig. 3 is the perspective view one after electroacoustic transducer housing of the present invention and upper conduction magnetic board are assembled;
Fig. 4 is the perspective view two after electroacoustic transducer housing of the present invention and upper conduction magnetic board are assembled;
Fig. 5 is the enlarged diagram of part A shown in Fig. 4;
Fig. 6 is housing shown in Fig. 4, the combination of upper conduction magnetic board be combined with magnet after perspective view;
The combination of housing, upper conduction magnetic board and magnet shown in Fig. 7 Fig. 6 and the perspective view of lower conductor plate.
Embodiment
Below in conjunction with the drawings and specific embodiments, further detailed description is done to the present invention.
Fig. 1 is the perspective exploded view of electroacoustic transducer of the present invention, as shown in the figure, and electroacoustic transducer involving vibrations system, magnetic circuit system, and the housing 12 of the fixing vibrational system of collecting and magnetic circuit system.The voice coil loudspeaker voice coil 22 that vibrational system comprises vibrating diaphragm 21 and is incorporated on the downside of vibrating diaphragm 21, in the electroacoustic transducer course of work, drives vibrating diaphragm 21 to vibrate by voice coil loudspeaker voice coil 22 and sounds.Magnetic circuit system is two magnetic route structure, comprises internal magnetic circuit system and the external magnetic circuit system around internal magnetic circuit Operation system setting; Wherein, external magnetic circuit system comprises the upper conduction magnetic board 321, outer magnet 322 and the lower magnetic conductive board 33 that combine successively; Internal magnetic circuit system comprises inner magnet 312 and interior magnetic conductive board 311, is incorporated into the center above lower magnetic conductive board 33.Lid 11 lid is connected on housing 12, jointly forms the peripheral frame of electroacoustic transducer with housing 12.
In addition, in the present invention, the structure that outer magnet 322 is off has four openends, and form four independently parts, the outer magnet 322 of this structure is conducive to cost-saving.The top that upper conduction magnetic board 321 is incorporated into four independently outer magnets 322 is loop configuration.Housing 12 is rectangular configuration, and the four edges of four independently outer magnet 322 respectively corresponding rectangular housing 12 is arranged.
The manufacture method of electroacoustic transducer of the present invention is described below in conjunction with accompanying drawing.In the present embodiment, the outer magnet 322 provided has four openends, forms four independently parts.First, on upper conduction magnetic board 321, injection moulding forms housing 12, its middle shell 12 is also integrally formed the location division 121 of corresponding outer magnet 322 openend.As shown in Figure 2 and Figure 3, the edge of the upper conduction magnetic board 321 of annular is provided with the extension 3211 extended laterally, and extension 3211 is conducive to the fastness that upper conduction magnetic board 321 is combined with housing 12.In addition, extension 3211 is also provided with through hole, the fastness that upper conduction magnetic board 321 is combined with housing 12 increases further.
In addition, the housing 12 that injection moulding is formed is rectangle, forms four location divisions 121. of location outer magnet 322 in four bights of rectangular housing 12
Secondly, outer magnet 322 is incorporated into the side of upper conduction magnetic board 321 bottom housing 12, wherein, outer magnet 322 is located by the location division 121 that housing 12 is integrally formed.
As shown in Figure 4, Figure 5 and Figure 6, location division 121 is arranged between upper conduction magnetic board 321 and lower magnetic conductive board 33, location division 121 is positioned at outer magnet 322 side and position bottom the housing 12 is provided with guide part 1211, is provided with the limiting section 1212 of protrusion near the side of outer magnet 322.Wherein guide part 1211 is conducive to the installation of outer magnet 322, and limiting section 1212 can be finely tuned location division 121, is conducive to the fluid-tight engagement of outer magnet 322 and location division 121.This position being positioned at outer magnet 322 openend of disconnection on housing 12 arranges the design of location division 121, can ensure that outer magnet 322 accurately and is firmly positioned on housing 12, outer magnet 322 can be installed accurately, thus improve the overall performance of product.
Then, lower magnetic conductive board 33 is incorporated into the bottom of outer magnet 321 away from upper conduction magnetic board 321 by modes such as bondings, as shown in Figure 7.
Then, reversed by above-mentioned combination, inner magnet 312 and interior magnetic conductive board 311 are incorporated into the center of lower magnetic conductive board 33, outer magnet 322 and upper conduction magnetic board 321 are around inner magnet 312 and interior magnetic conductive board 311.
Finally, the vibrational system formed by vibrating diaphragm 21 and voice coil loudspeaker voice coil 22 is fixed on housing 12, lid 11 and housing 12 are covered connect fixing.
The manufacture method of this electroacoustic transducer, can locate magnetic circuit system accurately, and the assembling of electroacoustic transducer is easy to realize.
In the present invention, the openend of outer magnet is not limited to four, but is at least two and makes outer magnet be off structure, and on housing, the position of corresponding outer magnet openend is provided with location division.
Under above-mentioned instruction of the present invention; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment; and these improve and distortion; all drop in protection scope of the present invention; those skilled in the art should be understood that; above-mentioned specific descriptions just explain object of the present invention better, and protection scope of the present invention is by claim and equivalents thereof.
Claims (4)
1. a manufacture method for electroacoustic transducer, is characterized in that, comprises the following steps:
Step one, provides an outer magnet, the structure that described outer magnet is off, has at least two openends;
Step 2, provides the upper conduction magnetic board that annular, and on upper conduction magnetic board, injection moulding forms housing, described housing is integrally formed the location division of corresponding described outer magnet openend; Be provided with the extension to extending away from described upper conduction magnetic board direction outside described upper conduction magnetic board, described extension is provided with through hole;
Step 3, described outer magnet is incorporated into the side of described upper conduction magnetic board near described housing bottom, described outer magnet is limited by the location division on described housing; Described position point is provided with guide part in described outer magnet side and near the position of described housing bottom, and described location division is provided with the limiting section of protrusion near the side of described outer magnet;
Step 4, provides a lower magnetic conductive board, lower magnetic conductive board is incorporated into the bottom of described outer magnet away from described upper conduction magnetic board;
Step 5, provides an inner magnet and interior magnetic conductive board, inner magnet and interior magnetic conductive board is incorporated into the side near described upper conduction magnetic board on described lower magnetic conductive board;
Step 6, provides a vibrational system, vibrational system is combined with described housing.
2. the manufacture method of electroacoustic transducer according to claim 1, is characterized in that, in step one, the openend of outer magnet is four.
3. the manufacture method of electroacoustic transducer according to claim 1 and 2, is characterized in that, housing described in step 2 is rectangle, and four bights of described rectangular housing are provided with four location divisions of the described outer magnet in location.
4. the manufacture method of electroacoustic transducer according to claim 3, is characterized in that, described location division is arranged between described upper conduction magnetic board and described lower magnetic conductive board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110424489.1A CN102413413B (en) | 2011-12-17 | 2011-12-17 | Manufacture method of electroacoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110424489.1A CN102413413B (en) | 2011-12-17 | 2011-12-17 | Manufacture method of electroacoustic transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102413413A CN102413413A (en) | 2012-04-11 |
| CN102413413B true CN102413413B (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110424489.1A Active CN102413413B (en) | 2011-12-17 | 2011-12-17 | Manufacture method of electroacoustic transducer |
Country Status (1)
| Country | Link |
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| CN (1) | CN102413413B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106131760A (en) * | 2016-08-31 | 2016-11-16 | 苏州倍声声学技术有限公司 | Chamber enclosure after moving-iron receiver |
| CN107404690A (en) * | 2017-08-04 | 2017-11-28 | 奥音科技（镇江）有限公司 | A kind of housing applied to electroacoustic transducer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1685759A (en) * | 2002-10-25 | 2005-10-19 | 松下电器产业株式会社 | Electroacoustic transducer and process for producing the same |
| CN201893919U (en) * | 2010-11-10 | 2011-07-06 | 瑞声光电科技(常州)有限公司 | Electromagnetic loudspeaker |
| CN201893921U (en) * | 2010-11-10 | 2011-07-06 | 瑞声光电科技(常州)有限公司 | Electromagnetic loudspeaker |
-
2011
- 2011-12-17 CN CN201110424489.1A patent/CN102413413B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1685759A (en) * | 2002-10-25 | 2005-10-19 | 松下电器产业株式会社 | Electroacoustic transducer and process for producing the same |
| CN201893919U (en) * | 2010-11-10 | 2011-07-06 | 瑞声光电科技(常州)有限公司 | Electromagnetic loudspeaker |
| CN201893921U (en) * | 2010-11-10 | 2011-07-06 | 瑞声光电科技(常州)有限公司 | Electromagnetic loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102413413A (en) | 2012-04-11 |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |