CN201185474Y - Moving-coil type electro-acoustic conversion device - Google Patents
Moving-coil type electro-acoustic conversion device Download PDFInfo
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- CN201185474Y CN201185474Y CNU2008200171749U CN200820017174U CN201185474Y CN 201185474 Y CN201185474 Y CN 201185474Y CN U2008200171749 U CNU2008200171749 U CN U2008200171749U CN 200820017174 U CN200820017174 U CN 200820017174U CN 201185474 Y CN201185474 Y CN 201185474Y
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- voice coil
- magnetic circuit
- moving
- circuit device
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Abstract
The utility model discloses a moving-coil type electroacoustical transducer, which comprises a magnetic circuit unit and a vibrating unit which are combined together by a shell; wherein, the vibrating unit comprises a diaphragm fixed on the shell and a voice coil fixed on the diaphragm; the voice coil is provided with a lead wire inputted electric signals. The moving-coil type electroacoustical transducer is characterized in that the lead wire of the voice coil is arranged far from the position of the bonding point of the diaphragm and the voice coil, and on the electroacoustical transducer, a lead wire hole, through which the lead wire can be externally connected, is arranged at a position far from the diaphragm. When the moving-coil type electroacoustical transducer with the structure works in high power, the lead wire cannot be easily impacted by other parts, connection is simple, the convenience of structure design is enhanced, the product performance is improved, the reliability is good, and the cost is low.
Description
Technical field
The utility model relates to a kind of moving-coil type electro-acoustic conversing device, especially relates to the non-damageable moving-coil type electro-acoustic conversing device of lead-in wire on a kind of voice coil loudspeaker voice coil.
Background technology
In recent years, along with mobile phone, the develop rapidly in electronic product markets such as notebook computer, the moving-coil type electro-acoustic conversing device of cost performance excellence (generally comprising receiver and electroacoustic transducer) is widely used, as accompanying drawing 6 is a kind of common moving-coil type electro-acoustic conversing device, its magnetic circuit device is the internal magnetic circuit structure, the main body flat shape is circular, comprise a middle portion flattening, form the peviform basin frame 11 of sidewall on every side, basin frame 11 middle part flats are installed a circular magnet 12 and a circular washer 13 successively, thus the sidewall of basin frame 11 and magnet 12, washer 13 forms a magnetic gap; Plastic casing 16 and magnetic circuit device are bonded together, and be bonded with a vibrating diaphragm 15 on the shell 16, vibrating diaphragm 15 edge parts are bonded on the shell 16, are bonded with an annular voice coil loudspeaker voice coil 14 simultaneously, annular voice coil loudspeaker voice coil 14 is in magnetic gap inside, thereby has formed basic moving-coil type electro-acoustic conversing device structure.This constructed products, its lead-in wire 18 is drawn from the upper end of voice coil loudspeaker voice coil 14 and the junction of vibrating diaphragm 15, for guarantee to go between 18 and vibrating diaphragm 15 be bonded together without viscose, cause the quality and the unbalanced stress of vibrating diaphragm even, cause that tonequality is bad, the lead-in wire 18 of this structure adopts unsettled design, 18 unsettled being connected on the default metal pad of shell that go between, and the metal aperture by enclosure is electrically communicated on the wiring board 17 of housing exterior.
When but the vibrating diaphragm of this product 15 Oscillation Amplitudes are big, be easy to cause unsettled lead-in wire 18 to collide shell 16 or basin frame 11 edges, cause that easily broken string and tonequality are bad, yet electronic product is exactly high-power, dominance energy for the universal demand of electroacoustic transducer now, on original structure, can't realize these characteristics, and it is comparatively complicated that this constructed products lead-in wire 18 is communicated to the design of shell 16 outside line plates 17, causes product hidden danger easily.So, be necessary the structure of moving-coil type electro-acoustic conversing device is improved.
The utility model content
Technical problem to be solved in the utility model provides a kind of moving-coil type electro-acoustic conversing device, and in powerful work, lead-in wire is not easy to be subjected to the collision and the friction of other parts, and connected mode is simple.
For solving the problems of the technologies described above, the technical solution of the utility model is: moving-coil type electro-acoustic conversing device, comprise magnetic circuit device and vibrating device, described magnetic circuit device and vibrating device combine by shell, described vibrating device comprises vibrating diaphragm that is fixed on the described shell and the voice coil loudspeaker voice coil that is fixed on the described vibrating diaphragm, described voice coil loudspeaker voice coil is provided with the lead-in wire of input electrical signal, it is characterized in that: the lead-in wire on the described voice coil loudspeaker voice coil is arranged on the bonding point position away from described vibrating diaphragm and voice coil loudspeaker voice coil, is provided with the fairlead that supplies described lead external on the described moving-coil type electro-acoustic conversing device and away from described vibrating diaphragm position.
A kind of improvement of the present utility model is: described magnetic circuit device comprises that an edge forms sidewall and the peviform basin frame of middle portion flattening, a magnet and the internal magnetic circuit device that washer is formed, described basin frame sidewall or bottom are provided with fairlead, and described lead-in wire passes by the magnetic gap and the described fairlead of described magnetic circuit device.
A kind of improvement of the present utility model is: described magnetic circuit device comprises that edge is smooth and the middle part forms the external magnetic circuit device that basin frame, magnet and the washer of hollow boss portion are formed, the sidewall of described basin frame lug boss is provided with fairlead, and described lead-in wire passes by the magnetic gap and the described fairlead of described magnetic circuit device.
A kind of improvement of the present utility model is: described magnetic circuit device comprise rectangle the basin frame, be installed in the bar magnet on the described basin frame and be installed in washer on the magnet, described basin frame, magnet and washer form two strip magnetic gap; Described shell is a rectangle frame posture shell; Described vibrating diaphragm be shaped as long narrow shape, described voice coil loudspeaker voice coil is long narrow shape frame voice coil loudspeaker voice coil, two symmetrical limits of described voice coil loudspeaker voice coil are positioned at the magnetic gap of described magnetic circuit device, and the part of described outer casing bottom opening is by the shutoff of described basin frame, and it is fairlead that described outer casing bottom does not seal opening; Described lead-in wire passes by described fairlead.
Further improvement in the technical proposal is: described fairlead is one, and all draw from a described fairlead at the two ends of described lead-in wire.
Further improvement in the technical proposal is: described fairlead is two, is symmetrically distributed in the both sides of described magnetic circuit device, and draw from described two fairleads respectively at the two ends of described lead-in wire.
Further improvement in the technical proposal is: described lead-in wire is provided with the crooked flaccid part of shapes such as helical form, zigzag in the magnetic gap inside of described magnetic circuit device.
Improvement of the present utility model is: described moving-coil type electro-acoustic conversing device also includes wiring board, and described lead-in wire is connected on the wiring board of described shell after passing described fairlead.
Improvement of the present utility model is: described moving-coil type electro-acoustic conversing device also includes wiring board, and described lead-in wire is connected on the wiring board of the hollow boss portion inside that is arranged on described basin frame after passing described fairlead.
Improvement of the present utility model is: described rectangle magnetic circuit device is internal magnetic circuit device, external magnetic circuit device or double magnetic circuit device.
Also comprise other parts such as a protecgulum that covers vibrating diaphragm and damping, connector, dust proof member in the general moving-coil type electroacoustic converting system structure, the setting of this type of part and have or not the creativeness that does not influence this patent does not repeat them here.The utility model can be applied in the various magnetic structures such as internal magnetic circuit, external magnetic circuit, double magnetic circuit.
Owing to adopted technique scheme, moving-coil type electro-acoustic conversing device, comprise magnetic circuit device and vibrating device, described magnetic circuit device and vibrating device combine by shell, described vibrating device comprises vibrating diaphragm that is fixed on the described shell and the voice coil loudspeaker voice coil that is fixed on the described vibrating diaphragm, described voice coil loudspeaker voice coil is provided with the lead-in wire of input electrical signal, it is characterized in that: the lead-in wire on the described voice coil loudspeaker voice coil is arranged on the bonding point position away from described vibrating diaphragm and voice coil loudspeaker voice coil, is provided with the fairlead that supplies described lead external on the described moving-coil type electro-acoustic conversing device and away from described vibrating diaphragm position; The moving-coil type electroacoustic converting system product of this structure is in powerful work, and lead-in wire is not easy to be subjected to the collision of other parts, and connected mode is simple, and the structural design convenience strengthens, and properties of product lifting, good reliability, cost are low.
Description of drawings
Fig. 1 is the structural representation of the utility model case study on implementation one;
Fig. 2 is the structural representation of the utility model case study on implementation two;
Fig. 3 is the structure principle chart of the utility model case study on implementation three, and the A-A that is Fig. 5 is to cutaway view;
Fig. 4 is the structure principle chart of the utility model case study on implementation three, and the B-B that is Fig. 5 is to cutaway view;
Fig. 5 is the schematic top plan view after the utility model case study on implementation three removes vibrating diaphragm;
Fig. 6 is the structural representation of background technology.
Embodiment
Embodiment one
As shown in Figure 1, the implementation case has been described a kind of moving-coil type electro-acoustic conversing device, comprise edge to form sidewall and the circular basin frame of the peviform of middle portion flattening 11, a circular magnet 12 and the internal magnetic circuit device that circular washer 13 is formed, magnet 12 and washer 13 are bonded in the centre bottom of basin frame 11 successively, thereby the sidewall of magnet 12, washer 13 and basin frame 11 forms a magnetic gap; Comprise a voice coil loudspeaker voice coil 14 and a vibrating diaphragm 15, voice coil loudspeaker voice coil 14 and vibrating diaphragm 15 bond together, voice coil loudspeaker voice coil 14 places in the magnetic gap, thereby form a vibrating device; Comprise a shell 16, shell 16 is bonded and fixed at the edge and the magnetic circuit device of vibrating diaphragm 15 together, and shell 16 outsides also are useful on the wiring board 17 of connecting circuit; The sidepiece of basin frame 11 is provided with the otch 19 of a vertical direction, and the lead-in wire 18 on the voice coil loudspeaker voice coil 14 is drawn from the bottom of voice coil loudspeaker voice coil 14, and passes by technologies such as welding procedure, electronic spot-weldings from otch 19 and to be connected on the wiring board 17, and lead-in wire 18 keeps vacant states.
This lead-in wire draws from voice coil loudspeaker voice coil below, the otch by basin frame side passes the design that is connected on the housing exterior wiring board, in the high power work of electroacoustic transducer, lead-in wire is difficult to touch magnetic circuit part or shell, and lead-in wire keeps vacant state also to avoid lead-in wire is bonded in cause on the vibrating diaphragm various bad, simultaneously, otch can substitute the effect of letting out hole on original electroacoustic transducer shell, does not need additional designs to let out hole.
Embodiment two
As shown in Figure 2, the implementation case has been described another kind of moving-coil type electro-acoustic conversing device, comprise that smooth and middle part, edge convexes to form the circular basin frame of the peviform of a hollow boss portion 21, an annular magnet 22 and the internal magnetic circuit device that annular washer 23 is formed, magnet 22 and washer 23 are bonded in the par, middle edge of basin frame 21 successively, thereby the middle part of magnet 22, washer 23 and basin frame 21 convexes to form a magnetic gap; Comprise a voice coil loudspeaker voice coil 24 and a vibrating diaphragm 25, voice coil loudspeaker voice coil 24 and vibrating diaphragm 25 bond together, voice coil loudspeaker voice coil 24 places in the magnetic gap, thereby form a vibrating device; Comprise a shell 26, shell 26 is bonded and fixed at the edge and the magnetic circuit device of vibrating diaphragm 25 together, and the hollow boss portion inside of basin frame 21 also is useful on the wiring board 27 of connecting circuit; The hollow boss portion sidepiece of basin frame 21 is provided with the otch 29 of two vertical direction of symmetrical distribution, and two of the symmetrical distribution on the voice coil loudspeaker voice coil 24 lead-in wires 28 are drawn from the bottom of voice coil loudspeaker voice coil 24, and passes from otch 29 and to be connected on the wiring board 27, and lead-in wire 28 keeps vacant states.
All advantages of the moving-coil type electro-acoustic conversing device of the implementation case electroacoustic transducer system in possessing case study on implementation 1, because the external magnetic circuit apparatus structure that the basin frame, annular magnet and the annular washer that have adopted smooth and middle part, edge to form hollow boss portion are formed, the sidewall of basin frame lug boss is provided with otch, lead-in wire passes, is connected on the wiring board of the hollow boss portion inside that is arranged on the basin frame by the magnetic gap and the otch of magnetic circuit device, and the extraction location of two lead-in wires on voice coil loudspeaker voice coil is symmetrically distributed, and the basin frame is provided with two fairleads of symmetrical distribution.The hollow boss portion volume inside that this design first can effectively utilize the basin frame is used to arrange splicing ears such as wiring board and bonding wire, elastic sheet metal, spring, even components and parts such as resistance are installed; The extraction location of second lead-in wire on voice coil loudspeaker voice coil is symmetrically distributed can be so that the stress balance of voice coil loudspeaker voice coil; The 3rd basin frame is provided with two fairleads of symmetrical distribution and places the uneven generation of the magnetic line of force.
Embodiment three
As Fig. 3, Fig. 4, shown in Figure 5, the implementation case has been described another moving-coil type electro-acoustic conversing device, comprise the strip basin frame 31 of the smooth and middle part projection in both sides, two strip magnet 32 and two external magnetic circuit devices that strip washer 33 is formed, magnet 32 and washer 32 are bonded in the par, both sides of basin frame 31 successively, thereby the middle part of magnet 32, washer 33 and basin frame 31 convexes to form a magnetic gap; Comprise a microscler voice coil loudspeaker voice coil 34 and a microscler vibrating diaphragm 35, voice coil loudspeaker voice coil 34 and vibrating diaphragm 35 bond together, voice coil loudspeaker voice coil 34 places in the magnetic gap, thereby form a vibrating device; Comprise an elongated envelope 36, shell 36 is bonded and fixed at the edge and the magnetic circuit device of vibrating diaphragm 35 together, and the bottom of shell 36 is provided with two wiring boards 37 of symmetrical distribution; Shell 36 is similar to a rectangular frame, its long axis direction is consistent with the long axis direction of magnetic circuit device system, and the two ends of its long axis direction grow the two ends of magnetic circuit device system long axis direction, thereby, formed two holes 39 between the two ends of the two ends of shell 36 long axis directions and magnetic circuit device system long axis direction, these two holes are as the fairlead 39 of lead-in wire 38; Two of symmetrical distribution on the voice coil loudspeaker voice coil 34 lead-in wires 38 are drawn from the bottom of voice coil loudspeaker voice coil 34, and pass from fairlead 39 and to be connected on the wiring board 37, and lead-in wire 38 keeps vacant states, and go between and 38 have spiral-shaped bending.
All advantages of the moving-coil type electro-acoustic conversing device of the implementation case electroacoustic transducer system in possessing case study on implementation two, because adopted microscler magnetic Circuit Design, this design has further reduced the difficulty of product design, do not need to be provided with separately fairlead, and can the many usefulness in a hole, the effective magnetic line of force that utilizes; And the spiral-shaped curved design of lead-in wire can prevent effectively that electroacoustic transducer from causing the broken string or long some bumps, the friction interference of causing that go between when high power work.On the basis of the implementation case, adjusted, promptly can be applied in internal magnetic circuit structure or the two magnetic route structure.
Claims (10)
1. moving-coil type electro-acoustic conversing device, comprise magnetic circuit device and vibrating device, described magnetic circuit device and vibrating device combine by shell, described vibrating device comprises vibrating diaphragm that is fixed on the described shell and the voice coil loudspeaker voice coil that is fixed on the described vibrating diaphragm, described voice coil loudspeaker voice coil is provided with the lead-in wire of input electrical signal, it is characterized in that: the lead-in wire on the described voice coil loudspeaker voice coil is arranged on the bonding point position away from described vibrating diaphragm and voice coil loudspeaker voice coil, is provided with the fairlead that supplies described lead external on the described moving-coil type electro-acoustic conversing device and away from described vibrating diaphragm position.
2. moving-coil type electro-acoustic conversing device as claimed in claim 1, it is characterized in that: described magnetic circuit device comprises that an edge forms sidewall and the peviform basin frame of middle portion flattening, a magnet and the internal magnetic circuit device that washer is formed, described basin frame sidewall or bottom are provided with fairlead, and described lead-in wire passes by the magnetic gap and the described fairlead of described magnetic circuit device.
3. moving-coil type electro-acoustic conversing device as claimed in claim 1, it is characterized in that: described magnetic circuit device comprises that edge is smooth and the middle part forms the external magnetic circuit device that basin frame, magnet and the washer of hollow boss portion are formed, the sidewall of described basin frame lug boss is provided with fairlead, and described lead-in wire passes by the magnetic gap and the described fairlead of described magnetic circuit device.
4. moving-coil type electro-acoustic conversing device as claimed in claim 1, it is characterized in that: described magnetic circuit device comprise rectangle the basin frame, be installed in the bar magnet on the described basin frame and be installed in washer on the magnet, described basin frame, magnet and washer form two strip magnetic gap; Described shell is a rectangle frame posture shell; Described vibrating diaphragm be shaped as long narrow shape, described voice coil loudspeaker voice coil is long narrow shape frame voice coil loudspeaker voice coil, two symmetrical limits of described voice coil loudspeaker voice coil are positioned at the magnetic gap of described magnetic circuit device, and the part of described outer casing bottom opening is by the shutoff of described basin frame, and it is fairlead that described outer casing bottom does not seal opening; Described lead-in wire passes by described fairlead.
5. as claim 2 or 3 or 4 described moving-coil type electro-acoustic conversing devices, it is characterized in that: described fairlead is one, and all draw from a described fairlead at the two ends of described lead-in wire.
6. as claim 2 or 3 or 4 described moving-coil type electro-acoustic conversing devices, it is characterized in that: described fairlead is two, is symmetrically distributed in the both sides of described magnetic circuit device, and draw from described two fairleads respectively at the two ends of described lead-in wire.
7. as claim 2 or 3 or 4 described moving-coil type electro-acoustic conversing devices, it is characterized in that: described lead-in wire is provided with the crooked flaccid part of helical form or zigzag in the magnetic gap inside of described magnetic circuit device.
8. as claim 2 or 4 described moving-coil type electro-acoustic conversing devices, it is characterized in that: described moving-coil type electro-acoustic conversing device also includes wiring board, and described lead-in wire is connected on the wiring board of described shell after passing described fairlead.
9. moving-coil type electro-acoustic conversing device as claimed in claim 3 is characterized in that: described moving-coil type electro-acoustic conversing device also includes wiring board, and described lead-in wire is connected on the wiring board of the hollow boss portion inside that is arranged on described basin frame after passing described fairlead.
10. moving-coil type electro-acoustic conversing device as claimed in claim 4 is characterized in that: described magnetic circuit device is internal magnetic circuit device, external magnetic circuit device or double magnetic circuit device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200171749U CN201185474Y (en) | 2008-01-29 | 2008-01-29 | Moving-coil type electro-acoustic conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200171749U CN201185474Y (en) | 2008-01-29 | 2008-01-29 | Moving-coil type electro-acoustic conversion device |
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| Publication Number | Publication Date |
|---|---|
| CN201185474Y true CN201185474Y (en) | 2009-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200171749U Expired - Lifetime CN201185474Y (en) | 2008-01-29 | 2008-01-29 | Moving-coil type electro-acoustic conversion device |
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| Country | Link |
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| CN (1) | CN201185474Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227766A (en) * | 2008-01-29 | 2008-07-23 | 歌尔声学股份有限公司 | Moving-coil type electro-acoustic conversing device |
| CN105979445A (en) * | 2016-06-29 | 2016-09-28 | 歌尔股份有限公司 | Loudspeaker |
| CN108322876A (en) * | 2018-04-11 | 2018-07-24 | 深圳倍声声学技术有限公司 | A kind of dynamic iron construction |
-
2008
- 2008-01-29 CN CNU2008200171749U patent/CN201185474Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227766A (en) * | 2008-01-29 | 2008-07-23 | 歌尔声学股份有限公司 | Moving-coil type electro-acoustic conversing device |
| CN105979445A (en) * | 2016-06-29 | 2016-09-28 | 歌尔股份有限公司 | Loudspeaker |
| CN105979445B (en) * | 2016-06-29 | 2021-05-07 | 歌尔股份有限公司 | Loudspeaker |
| CN108322876A (en) * | 2018-04-11 | 2018-07-24 | 深圳倍声声学技术有限公司 | A kind of dynamic iron construction |
| CN108322876B (en) * | 2018-04-11 | 2023-12-22 | 南京声动健康科技有限公司 | Moving iron structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090121 |
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| CX01 | Expiry of patent term |