CN201629836U - Mini moving-coil electroacoustic converter - Google Patents
Mini moving-coil electroacoustic converter Download PDFInfo
- Publication number
- CN201629836U CN201629836U CN2009202822753U CN200920282275U CN201629836U CN 201629836 U CN201629836 U CN 201629836U CN 2009202822753 U CN2009202822753 U CN 2009202822753U CN 200920282275 U CN200920282275 U CN 200920282275U CN 201629836 U CN201629836 U CN 201629836U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- flexible circuit
- electroacoustic transducer
- voice coil
- type electroacoustic
- 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
Links
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides a mini moving-coil electroacoustic converter which comprises an auxiliary system and a vibration system, wherein the auxiliary system comprises a front cover and a casing; the casing consists of a top part close to the front cover and a bottom part far away from the front cover; the vibration system comprises a vibration membrane and a voice coil; a flexible circuit board of a circuit is combined between the vibration membrane and the voice coil; part of the flexible circuit board outwards and partially extends to form an extending part of the flexible circuit board; the extending part of the flexible circuit board extends out of the outer edge of the mini moving-coil electroacoustic converter and is fixed on the auxiliary system; an external electric connecting terminal is further arranged on the extending part of the flexible circuit board; the flexible circuit board is electrically connected with the voice coil; and the voice coil is electrically connected to the external electric connecting terminal through a circuit arranged on the flexible circuit board. The electric connection performance and the acoustic performance of the mini moving-coil electroacoustic converter are improved, the production technology of the mini moving-coil electroacoustic converter is further simplified, and the production efficiency is improved.
Description
Technical field
The utility model is specifically related to a kind of miniature moving-coil type electroacoustic transducer.
Background technology
Along with the development in portable consumer electronic product market, obtained using widely as a large amount of miniature electronic devices such as miniature moving-coil type electroacoustic transducers.In the known technology, the operation principle of miniature moving-coil type electroacoustic transducer is that the voice coil loudspeaker voice coil that is connected with alternating current is subjected to Lorentz force and makes the vibrational system vibration sounding of miniature moving-coil type electroacoustic transducer in magnetic field.At present, the miniature moving-coil type electroacoustic transducer vibrational system of traditional structure such as Fig. 9 and shown in Figure 10, comprise vibrating diaphragm 21 and the voice coil loudspeaker voice coil 22 that combines with vibrating diaphragm 21, the lead-in wire 23 of voice coil loudspeaker voice coil 22 generally is bonded in (perhaps unsettled) on the vibrating diaphragm 21, and is electrically connected on the devices such as wiring board that are arranged on the miniature moving-coil type electroacoustic transducer outside.The miniature moving-coil type electroacoustic transducer of this traditional structure, no matter go between and vibrating diaphragm bonds together still unsettled setting, under operating states such as the miniature moving-coil type electroacoustic transducer amplitude is bigger, all cause broken string easily, cause that electrical connection is bad, and be easy to generate different sound, cause defectives such as distortion, the miniature moving-coil type electroacoustic transducer of this traditional structure of while, because the operation of lead-in wire and wiring board generally need be set on miniature moving-coil type electroacoustic transducer in the production process, cause production technology comparatively complicated, be unfavorable for the raising of production efficiency.So be necessary the miniature moving-coil type electroacoustic transducer of above-mentioned traditional structure is further improved, to avoid above-mentioned defective.
The utility model content
Technical problem to be solved in the utility model provides a kind of miniature moving-coil type electroacoustic transducer, when improving miniature moving-coil type electroacoustic transducer electrical connection properties and acoustical behavior, further simplify the miniature moving-coil type electroacoustic transducer production technology, enhance productivity.
For solving the problems of the technologies described above, the technical scheme that the utility model proposed is: miniature moving-coil type electroacoustic transducer, comprise auxiliary system and vibrational system, described auxiliary system comprises protecgulum and shell, and described shell comprises near the top of described protecgulum with away from the bottom of described protecgulum; Described vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, and: the flexible circuit board that is combined with circuit between described vibrating diaphragm and the voice coil loudspeaker voice coil, the part of described flexible circuit board stretches out and forms the flexible circuit board extension, described flexible circuit board extension stretches out the outward flange of miniature moving-coil type electroacoustic transducer and is fixed on the described auxiliary system, also be provided with dispatch from foreign news agency on the described flexible circuit board extension and connect end, described flexible circuit board is electrically connected described voice coil loudspeaker voice coil, and described voice coil loudspeaker voice coil is electrically connected to described dispatch from foreign news agency by the circuit that is provided with on the described flexible circuit board and connects on the end.
As a kind of improvement, the part of described protecgulum or shell stretches out and is suspended on described miniature miniature moving-coil type electroacoustic transducer, and described wiring board extension correspondence is fixed on the hanging structure of described protecgulum or shell.
As a kind of improvement, described wiring board extension comprises kink and fixed part, described wiring board extension is along the bending of the outward flange of described shell and be fixed on the bottom of described shell, and described kink, fixed part combine with outward flange, the bottom of described shell respectively.
As a kind of improvement, described flexible circuit board extension is provided with fixing hole, and described shell is provided with the fixed leg of corresponding described fixing hole.
As a kind of improvement, the fixed part of described flexible circuit board is for increasing the hardness of described fixed part by reinforcement.
As a kind of improvement, the outward flange of described shell and described kink bound fraction is a planar structure.
As a kind of improvement, described flexible circuit board extension and described shell hot melt are fixed.
As a kind of improvement, described miniature moving-coil type electroacoustic transducer is a two magnetic route structure.
Owing to adopted technique scheme: miniature moving-coil type electroacoustic transducer, comprise auxiliary system and vibrational system, described auxiliary system comprises protecgulum and shell, described shell comprises near the top of described protecgulum with away from the bottom of described protecgulum; Described vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, and: the flexible circuit board that is combined with circuit between described vibrating diaphragm and the voice coil loudspeaker voice coil, the part of described flexible circuit board stretches out and forms the flexible circuit board extension, described flexible circuit board extension stretches out the outward flange of miniature moving-coil type electroacoustic transducer and is fixed on the described auxiliary system, also be provided with dispatch from foreign news agency on the described flexible circuit board extension and connect end, described flexible circuit board is electrically connected described voice coil loudspeaker voice coil, and described voice coil loudspeaker voice coil is electrically connected to described dispatch from foreign news agency by the circuit that is provided with on the described flexible circuit board and connects on the end.This design when improving miniature moving-coil type electroacoustic transducer electrical connection properties and acoustical behavior, is further simplified the miniature moving-coil type electroacoustic transducer production technology, has improved production efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the profile of the utility model embodiment one;
Fig. 3 is the structural representation of the utility model embodiment one protecgulum;
Fig. 4 is the structural representation at the utility model embodiment one flexible circuit board back side;
Fig. 5 is the structural representation in the utility model embodiment one flexible circuit board front;
Fig. 6 is the structural representation at the utility model embodiment two flexible circuit board back sides;
Fig. 7 is the structural representation in the utility model embodiment two flexible circuit board fronts;
Fig. 8 is the structural representation of the utility model embodiment two;
Fig. 9 is the miniature moving-coil type electroacoustic transducer vibrational system vertical view of traditional structure;
Figure 10 is the miniature moving-coil type electroacoustic transducer vertical view of traditional structure.
Embodiment
Embodiment one:
As depicted in figs. 1 and 2, miniature moving-coil type electroacoustic transducer is a circular configuration, comprises auxiliary system 1, vibrational system 2 and magnetic circuit system 3.Auxiliary system 1 comprises protecgulum 11 and shell 12, and wherein shell 12 has one near the top of protecgulum 11 with away from the bottom of protecgulum 11; Vibrational system 2 comprises vibrating diaphragm 21 and voice coil loudspeaker voice coil 22; Magnetic circuit system 3 is a two magnetic route structure, comprises respectively first washer 311, first magnet 321, second washer 312 and second magnet 322 that combine with basin frame 33 from top to bottom; Also be provided with flexible circuit board 4 (FPCB) between vibrating diaphragm 21 and voice coil loudspeaker voice coil 22, flexible circuit board 4 combines with vibrating diaphragm 21 and voice coil loudspeaker voice coil 22 respectively, and the electrode on the flexible circuit board 4 electrical connection voice coil loudspeaker voice coils 22.
As shown in Figure 3, protecgulum 11 comprises protecgulum body 111 and protecgulum extension 112, the hanging structure that protecgulum extension 112 extends to form to the outside of miniature moving-coil type electroacoustic transducer cell body for the part of protecgulum 11 also is provided with some phonate holes 113 on protecgulum body 111.
As shown in Figure 4 and Figure 5, flexible circuit board 4 comprises support arm 41, inner support 43 and extends and equally distributed four brace 42 along the gap between inner support 41, the support arm 43, brace 42 is extended to the center of inner support 43 with the junction of inner support 43, and form integrative-structure in the central area of inner support 43, and be provided with two pads 44 that are used to be electrically connected voice coil loudspeaker voice coil 22 top electrodes in described central area; The part of support arm 41 stretches out, and stretch out miniature moving-coil type electroacoustic transducer and form wiring board extension 45, wiring board extension 45 corresponding protecgulum extensions 112 produce bending to avoid miniature moving-coil type electroacoustic transducer in assembling, pack, transport and be installed to the end product process; Also be provided with the dispatch from foreign news agency that is used to be electrically connected external circuit on the wiring board extension 45 and connect end 46, dispatch from foreign news agency connects end 46 and also is a pair of pad structure.The surface of flexible circuit board 4 also is provided with Copper Foil, and the Copper Foil on pad 44, flexible circuit board 4 surfaces and pad 46 form two turning circuits.Thereby the electrode on the voice coil loudspeaker voice coil 22 constitutes two circuit by the Copper Foil and the pad 46 on pad 44, flexible circuit board 4 surfaces, and conducts the miniature moving-coil type electroacoustic transducer outside.
This design of this implementation process, reduce the length of lead-in wire on can be largely or do not needed lead-in wire, and utilize pliability and Mechanical Reliability strong, be electrically connected stable FPCB and realize that voice coil loudspeaker voice coil is connected with the product circuit external, avoid miniature moving-coil type electroacoustic transducer to be easy to generate wire breaking and caused the defective that opens circuit, the different sound and the distortion that have improved miniature moving-coil type electroacoustic transducer are bad, simultaneously because in production technology, do not need to arrange lead-in wire and installation wiring board operation, further simplify the miniature moving-coil type electroacoustic transducer production technology, improved production efficiency.Also the flexible circuit board extension can be fixed on the shell the neither enforcement that influences the invention in this implementation process.
Embodiment two:
Present embodiment is that with the main distinction of embodiment one structure of flexible circuit board extension 45 is different, as shown in Figure 6 and Figure 7, flexible circuit board extension 45 comprises kink 451 ' and fixed part 452 ', pad 46 is arranged on the fixed part 452 ', and be respectively arranged with fixing hole 47 ' on kink 451 ' and fixed part 452 ', the body construction of the flexible circuit board 4 in this implementation process is a racetrack.The combination of flexible circuit board 4 and miniature moving-coil type electroacoustic transducer as shown in Figure 8, the fixed leg 121 that runway shape miniature moving-coil type electroacoustic transducer shell 12 is provided with corresponding to fixing hole 47 ', wiring board extension 45 extends along the outward flange of shell 12, and be fixed on the bottom of shell 12, fixing hole 47 ' on kink 451 ' and the fixed part 452 ' combines with the fixed leg 121 that shell 12 its outer edges and bottom are provided with respectively, by modes such as hot melts flexible circuit board 4 and shell 12 is fixed together again.In this implementation process, fix with combining of shell 12 for ease of kink 451 ', fixed part 452 ', shell 12 is a planar structure with the outward flange of kink 451 ' junction, and fixed part 452 ' is gone up by changing its thickness and carried out reinforcement to increase the hardness of fixed part 452 '.In this implementation process, kink 451 ' and fixed part 452 ' also can pass through other modes and shell 12 secure bond, all can realize the technique effect of above-mentioned implementation process.
In the enforcement of the invention, miniature moving-coil type electroacoustic transducer also can for square, oval, etc. other shape; The pad of flexible circuit board etc. also can be arranged on other positions, and the circuit configuration structure of flexible circuit board improved etc., the reinforcement of fixed part also can be by realizing the increase of fixed part hardness, the neither enforcement that influences the invention in conjunction with the material of high rigidity.
Claims (8)
1. miniature moving-coil type electroacoustic transducer comprises auxiliary system and vibrational system, and described auxiliary system comprises protecgulum and shell, and described shell comprises near the top of described protecgulum with away from the bottom of described protecgulum; Described vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, it is characterized in that: the flexible circuit board that is combined with circuit between described vibrating diaphragm and the voice coil loudspeaker voice coil, the part of described flexible circuit board stretches out and forms the flexible circuit board extension, described flexible circuit board extension stretches out the outward flange of miniature moving-coil type electroacoustic transducer and is fixed on the described auxiliary system, also be provided with dispatch from foreign news agency on the described flexible circuit board extension and connect end, described flexible circuit board is electrically connected described voice coil loudspeaker voice coil, and described voice coil loudspeaker voice coil is electrically connected to described dispatch from foreign news agency by the circuit that is provided with on the described flexible circuit board and connects on the end.
2. miniature moving-coil type electroacoustic transducer as claimed in claim 1, it is characterized in that: the part of described protecgulum or shell stretches out and is suspended on the body of described miniature moving-coil type electroacoustic transducer, and described wiring board extension correspondence is fixed on the hanging structure of described protecgulum or shell.
3. miniature moving-coil type electroacoustic transducer as claimed in claim 1, it is characterized in that: described wiring board extension comprises kink and fixed part, described wiring board extension is along the bending of the outward flange of described shell and be fixed on the bottom of described shell, and described kink, fixed part combine with outward flange, the bottom of described shell respectively.
4. miniature moving-coil type electroacoustic transducer as claimed in claim 3 is characterized in that: described flexible circuit board extension is provided with fixing hole, and described shell is provided with the fixed leg of corresponding described fixing hole.
5. miniature moving-coil type electroacoustic transducer as claimed in claim 4 is characterized in that: the fixed part of described flexible circuit board increases the hardness of described fixed part by reinforcement.
6. miniature moving-coil type electroacoustic transducer as claimed in claim 5 is characterized in that: the outward flange of described shell and described kink bound fraction is a planar structure.
7. miniature moving-coil type electroacoustic transducer as claimed in claim 6 is characterized in that: described flexible circuit board extension and described shell hot melt are fixed.
8. as the described miniature moving-coil type electroacoustic transducer of the arbitrary claim of claim 1 to 7, it is characterized in that: described miniature moving-coil type electroacoustic transducer is a two magnetic route structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202822753U CN201629836U (en) | 2009-11-28 | 2009-11-28 | Mini moving-coil electroacoustic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202822753U CN201629836U (en) | 2009-11-28 | 2009-11-28 | Mini moving-coil electroacoustic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201629836U true CN201629836U (en) | 2010-11-10 |
Family
ID=43061234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202822753U Expired - Lifetime CN201629836U (en) | 2009-11-28 | 2009-11-28 | Mini moving-coil electroacoustic converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201629836U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761810A (en) * | 2011-04-26 | 2012-10-31 | 歌尔声学股份有限公司 | Loudspeaker |
| CN105992110A (en) * | 2016-05-05 | 2016-10-05 | 歌尔股份有限公司 | Sound generating device and sound generating device module group |
| CN110545509A (en) * | 2019-08-30 | 2019-12-06 | 歌尔股份有限公司 | Sound production device and electronic equipment |
-
2009
- 2009-11-28 CN CN2009202822753U patent/CN201629836U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761810A (en) * | 2011-04-26 | 2012-10-31 | 歌尔声学股份有限公司 | Loudspeaker |
| CN105992110A (en) * | 2016-05-05 | 2016-10-05 | 歌尔股份有限公司 | Sound generating device and sound generating device module group |
| CN110545509A (en) * | 2019-08-30 | 2019-12-06 | 歌尔股份有限公司 | Sound production device and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209526874U (en) | Loudspeaker | |
| CN101765044B (en) | Minitype moving-coil electroacoustic transducer | |
| CN205491130U (en) | Micro sound production device | |
| CN205566633U (en) | Micro sound production device | |
| CN110351639B (en) | Loudspeaker | |
| CN205961438U (en) | Micro sound production device | |
| CN204929238U (en) | Miniature sounder | |
| CN205657835U (en) | Micro sound production device | |
| CN110418256B (en) | Sound production device monomer, sound production module and electronic terminal | |
| CN104822114A (en) | Speaker device | |
| CN104822112A (en) | Speaker device | |
| CN102811410B (en) | Electroacoustic transducer | |
| CN105828257A (en) | Loudspeaker | |
| CN201667712U (en) | Moving-coil type electroacoustic transducer | |
| CN207304910U (en) | Vibrational system and sound-producing device in a kind of sound-producing device | |
| CN202050538U (en) | Loudspeaker | |
| CN201629836U (en) | Mini moving-coil electroacoustic converter | |
| CN205987359U (en) | Mini loudspeaker | |
| CN202841505U (en) | Electroacoustic transducer | |
| CN204518065U (en) | Loud speaker | |
| CN102196339A (en) | Vibration loudspeaker | |
| CN201623845U (en) | Mini-type movable coil electroacoustic converting device | |
| CN201533402U (en) | Minitype moving-coil type electro-acoustic conversion device | |
| CN114125669B (en) | Sound generating device and electronic equipment | |
| CN108513236B (en) | Loudspeaker vibrating structure and loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101110 |
|
| CX01 | Expiry of patent term |