CN202059561U - Vibration system for miniature voice generator - Google Patents

Vibration system for miniature voice generator Download PDF

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Publication number
CN202059561U
CN202059561U CN2011201583057U CN201120158305U CN202059561U CN 202059561 U CN202059561 U CN 202059561U CN 2011201583057 U CN2011201583057 U CN 2011201583057U CN 201120158305 U CN201120158305 U CN 201120158305U CN 202059561 U CN202059561 U CN 202059561U
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CN
China
Prior art keywords
voice coil
acoustic generator
vibrating diaphragm
minitype acoustic
vibrational
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011201583057U
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Chinese (zh)
Inventor
刘春发
张�成
蔡晓冬
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Goertek Inc
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Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Priority to CN2011201583057U priority Critical patent/CN202059561U/en
Application granted granted Critical
Publication of CN202059561U publication Critical patent/CN202059561U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a vibration system for a miniature voice generator. The vibration system comprises a diaphragm and a voice coil. The diaphragm is integrally formed by a plastic membrane layer and comprises a dome part in the center, an edge part around the dome part and a border part arranged at the border of the diaphragm; and, a conducting layer is arranged on the surface of the diaphragm, the lead on the voice coil is electrically connected with an external circuit of the miniature voice generator through the conducting layer. In the vibration system with such a structure, by arranging the conducting layer on the surface of the diaphragm, the lead of the voice coil can be directly electrically connected with the outside of the miniature voice generator through the conducting layer, so that the stability of electric connection of the miniature voice generator is enhanced, and poor electric conduction caused by the break of the lead when the miniature voice generator works is avoided; meanwhile, as no line sorting process design is required, the production procedures are reduced, and the production cost is reduced.

Description

The minitype acoustic generator vibrational system
Technical field
The utility model relates to the minitype acoustic generator field, is specifically related to a kind of minitype acoustic generator vibrational system.
Background technology
Along with the development in portable consumer electronic product market, mini-sound device is widely used, and along with the multi-functional and miniaturization Design of portable terminal electronic product, the vibro-acoustic performance of minitype acoustic generator is had higher requirement.
Known, the vibrational system of minitype acoustic generator generally comprises voice coil loudspeaker voice coil and vibrating diaphragm.Its sounding principle is by producing vibration by the stressed vibrating diaphragm that drives of the voice coil loudspeaker voice coil of the wire rod coiling of certain number of turn, thereby sounds, and on the electric connection mode of voice coil loudspeaker voice coil and external circuit, generally realizes by the lead-in wire on the voice coil loudspeaker voice coil is connected up.Traditional lead-in wire wire laying mode mainly contains two kinds:
A kind of is the wire laying mode that voice coil leads is bonded in the vibrating diaphragm surface, this design is on the one hand owing to voice coil leads produces vibration along with the vibration of vibrating diaphragm, be easy to generate noise, because producing high temperature when work, voice coil loudspeaker voice coil easily vibrating diaphragm is produced damage on the other hand, there is the broken string problem in the work on the one hand again, need to increase along line procedures, production technology is comparatively complicated.For this reason, the another kind of wire laying mode that voice coil leads is separated with vibrating diaphragm occurred, the mode by unsettled or guiding groove directly is electrically connected voice coil leads with external circuit, but there is the broken string problem too in this design, and need to increase along line procedures, production technology is comparatively complicated.
So, be necessary the minitype acoustic generator vibrational system of above-mentioned traditional structure is further improved, to avoid above-mentioned defective.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of minitype acoustic generator vibrational system, avoids problem in the minitype acoustic generator work, the problem includes: the broken string problem reduces simultaneously along line procedures, reduces the production cost of minitype acoustic generator.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of minitype acoustic generator vibrational system, comprise vibrating diaphragm and voice coil loudspeaker voice coil, described vibrating diaphragm is made of plastic film layers material one, comprise the ball top at center, around the ring portion at described ball top, and the edge part that is arranged on the vibrating diaphragm edge, and: the surface at described vibrating diaphragm is provided with conductive layer, and the lead-in wire on the described voice coil loudspeaker voice coil is electrically connected to the external circuit of described minitype acoustic generator by described conductive layer.
As a kind of improvement, described conductive layer is set in the part of described ring portion.
As a kind of improvement, described edge part is provided with terminals.
As a kind of improvement, the shell of described minitype acoustic generator is provided with shell fragment, and described shell fragment is electrically connected with link on the described edge part.
As a kind of improvement, be provided with composite bed on the surface of described vibrating diaphragm.
As a kind of improvement, described conductive layer distributes axisymmetricly on described vibrating diaphragm surface.
Minitype acoustic generator vibrational system of the present utility model, by conductive layer being set on the vibrating diaphragm surface, voice coil leads can be directly electrically connected to the outside of minitype acoustic generator by this conductive layer, thereby strengthened the stability that minitype acoustic generator is electrically connected, avoided producing in the minitype acoustic generator work broken string causes conduct bad; Simultaneously, owing to no longer need to carry out along the Wiring technology design, thereby reduced production process, reduced production cost.
Description of drawings
Fig. 1 is the minitype acoustic generator decomposing schematic representation that the utility model relates to.
Fig. 2 is the vertical view of the minitype acoustic generator vibrating diaphragm that relates to of the utility model.
Fig. 3 is the cutaway view of the minitype acoustic generator vibrating diaphragm that relates to of the utility model.
Fig. 4 is the vertical view of the minitype acoustic generator vibrational system that relates to of the utility model.
Embodiment
Shown in Fig. 1-4, miniature moving-coil type acoustical generator of the present utility model, the external frame of involving vibrations system, magnetic circuit system and fixing described vibrational system and magnetic circuit system, wherein vibrational system comprises vibrating diaphragm 21 and voice coil loudspeaker voice coil 22, this vibrating diaphragm 21 is made of plastic film layers 21a material one, comprises the ball top 211 at center, the ring portion 212 that is provided with around the ball top and the edge part 213 that is arranged on the vibrating diaphragm edge; And the surface at vibrating diaphragm 21 also is provided with conductive layer 21b, and conductive layer 21b forms conducting channel on the surface of plastic film layers 21a, and the lead-in wire 23 on the voice coil loudspeaker voice coil 22 is realized and being electrically connected of minitype acoustic generator external circuit by being electrically connected with conductive layer 21b.
Minitype acoustic generator vibrational system of the present utility model, by plastic film layers 21a surface conductive layer 21b is set at vibrating diaphragm 21, voice coil leads 23 can be directly electrically connected to the minitype acoustic generator external circuit by this conductive layer 21b, thereby strengthened the stability that minitype acoustic generator is electrically connected, avoided the defectives such as bad that conduct that producing in the minitype acoustic generator work breaks causes; Design owing to no longer needing to carry out suitable Wiring technology simultaneously, thereby reduced production process, reduced production cost.
In this implementation process, magnetic circuit system is a two magnetic route structure, comprise interior washer 411, internal magnet 421 and the outer washer 412, the external magnet 422 that combine with magnetic conductive board 43 respectively from top to bottom, be provided with around outer washer 412, external magnet 422 in wherein interior washer 411, internal magnet 421 difference; External frame comprises protecgulum 11 and shell 12, also is provided with a pair of shell fragment 5 on shell 12, and shell fragment 5 can conduct external circuit; Surface at vibrating diaphragm 21 also is provided with the performance that composite bed 3 is used to improve vibrating diaphragm 21.
Preferably, conductive layer 21b is arranged on whole ball top 211 and the edge part 213, and this conductive layer 21b only is set on the part of ring portion 212, this design can realize by known process of surface treatment such as etchings, and this design can make ring portion 212 softer, helps improving of acoustical behavior.
Preferably, conductive layer 21b distributes axisymmetricly on vibrating diaphragm 21 surfaces, and this design can guarantee the mass balance of vibrating diaphragm 21, helps the stability of vibrating diaphragm vibration.
Preferably, also be provided with terminals 214 on edge part 213, terminals 214 are realized being electrically connected along the sidewall setting of shell 12 and with shell fragment 5 in this implementation process, and this execution mode helps simplifying product structure design.
In addition, preferred in this implementation process, voice coil leads 23 can be electrically connected to by processes well known such as bonding or welding with conductive layer 21b.
In the invention was implemented, improvement such as the shape of minitype acoustic generator, the structure of magnetic circuit system and design the neither enforcement that influences the invention all was interpreted as protection content of the present utility model.

Claims (6)

1. minitype acoustic generator vibrational system, comprise vibrating diaphragm and voice coil loudspeaker voice coil, described vibrating diaphragm is made of plastic film layers material one, comprise the ball top at center, around the ring portion at described ball top, and the edge part that is arranged on the vibrating diaphragm edge, it is characterized in that: the surface at described vibrating diaphragm is provided with conductive layer, and the lead-in wire on the described voice coil loudspeaker voice coil is electrically connected to the external circuit of described minitype acoustic generator by described conductive layer.
2. minitype acoustic generator vibrational system according to claim 1 is characterized in that:
Part in described ring portion is provided with described conductive layer.
3. minitype acoustic generator vibrational system according to claim 2 is characterized in that:
Described edge part is provided with terminals.
4. minitype acoustic generator vibrational system according to claim 3 is characterized in that:
The shell of described minitype acoustic generator is provided with shell fragment, and described shell fragment is electrically connected with link on the described edge part.
5. minitype acoustic generator vibrational system according to claim 1 is characterized in that:
Surface at described vibrating diaphragm is provided with composite bed.
6. according to any described minitype acoustic generator vibrational system of claim 1-5, it is characterized in that:
Described conductive layer axle on described vibrating diaphragm is symmetrical distribution.
CN2011201583057U 2011-05-18 2011-05-18 Vibration system for miniature voice generator Expired - Lifetime CN202059561U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201583057U CN202059561U (en) 2011-05-18 2011-05-18 Vibration system for miniature voice generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201583057U CN202059561U (en) 2011-05-18 2011-05-18 Vibration system for miniature voice generator

Publications (1)

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CN202059561U true CN202059561U (en) 2011-11-30

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611971A (en) * 2012-01-13 2012-07-25 瑞声声学科技(深圳)有限公司 Ball top type vibration system and manufacturing method thereof and loudspeaker
CN102833651A (en) * 2012-08-24 2012-12-19 江西联创宏声电子有限公司 Sectionally coated spring plate and electric acoustic device using same
CN103024638A (en) * 2012-11-25 2013-04-03 歌尔声学股份有限公司 Electroacoustic transducer
CN103813242A (en) * 2012-11-13 2014-05-21 固昌通讯股份有限公司 Vibrating element
US20190261093A1 (en) * 2016-09-23 2019-08-22 Apple Inc. Transducer having a conductive suspension member
WO2021058009A1 (en) * 2019-09-29 2021-04-01 歌尔股份有限公司 Conductive film for sound production device and sound production device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611971A (en) * 2012-01-13 2012-07-25 瑞声声学科技(深圳)有限公司 Ball top type vibration system and manufacturing method thereof and loudspeaker
CN102833651A (en) * 2012-08-24 2012-12-19 江西联创宏声电子有限公司 Sectionally coated spring plate and electric acoustic device using same
CN103813242A (en) * 2012-11-13 2014-05-21 固昌通讯股份有限公司 Vibrating element
CN103813242B (en) * 2012-11-13 2017-05-24 固昌通讯股份有限公司 vibrating element
CN103024638A (en) * 2012-11-25 2013-04-03 歌尔声学股份有限公司 Electroacoustic transducer
WO2014079376A1 (en) * 2012-11-25 2014-05-30 歌尔声学股份有限公司 Electroacoustic transducer
CN103024638B (en) * 2012-11-25 2015-09-30 歌尔声学股份有限公司 Electroacoustic transducer
US9503822B2 (en) 2012-11-25 2016-11-22 Goertek Inc. Electroacoustic transducer
US20190261093A1 (en) * 2016-09-23 2019-08-22 Apple Inc. Transducer having a conductive suspension member
US10911874B2 (en) * 2016-09-23 2021-02-02 Apple Inc. Transducer having a conductive suspension member
WO2021058009A1 (en) * 2019-09-29 2021-04-01 歌尔股份有限公司 Conductive film for sound production device and sound production device

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

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.

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.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20111130