CN2358657Y - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
- Publication number
- CN2358657Y CN2358657Y CN 98246947 CN98246947U CN2358657Y CN 2358657 Y CN2358657 Y CN 2358657Y CN 98246947 CN98246947 CN 98246947 CN 98246947 U CN98246947 U CN 98246947U CN 2358657 Y CN2358657 Y CN 2358657Y
- Authority
- CN
- China
- Prior art keywords
- voice coil
- iron core
- magnetic field
- pole
- utmost point
- 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 - Fee Related
Links
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to a ring magnet. An inner ring of a ring magnet is an N pole, an outer ring is an S pole, or the inner ring is the S pole, and the outer ring is the N pole. An outer magnetic pole is led into the center through a soft iron which is provided with an iron core at the center, a strong permanent magnetic field is formed in a gap of the iron core and an inner magnetic pole, and a voice coil is arranged in the gap between the inner magnetic pole and the iron core. Magnetic force wires in the permanent magnetic field are uniform by using the structure, the whole voice coil is arranged in the magnetic field, the efficiency of the audio electric induction is enhanced, and the fidelity effect is good.
Description
The utility model relates to electronic technology field, belongs to the loud speaker class.
Common loud speaker is made up of permanent magnet, magnetic conductive soft iron, voice coil loudspeaker voice coil and sound dish, permanent magnet is a circular cylinder, two ends are respectively south poles up and down, the north and south magnetic pole is directed near the composition annular magnetic pole of placing voice coil loudspeaker voice coil with magnetic conductive soft iron, around voice coil loudspeaker voice coil, produce driving magnetic field, when from voice coil loudspeaker voice coil, feeding the frequency induction electric current, driving magnetic field produces the effect of a power to voice coil loudspeaker voice coil, make voice coil loudspeaker voice coil vertical tremor in the gap of permanent-magnetic field, the vibrations of voice coil loudspeaker voice coil drive the vibrations of sound dish, and tone currents is reduced into sound.The weak point of this structure is that its permanent-magnetic field is too narrow, and the electric current major part in the voice coil loudspeaker voice coil all is that the form with magnetic reflects that stack consumes with permanent-magnetic field, and the voice coil loudspeaker voice coil vibrating effect that causes therefrom is not good enough, makes the sound dish can not send sound true to nature.
The purpose of this utility model is by the permanent-magnetic field structure in the change loud speaker, makes the magnetic line of force of voice coil loudspeaker voice coil magnetic field and permanent-magnetic field as often as possible orthogonal, thereby improves the vibrating effect of voice coil loudspeaker voice coil, makes the sound dish can send sound true to nature.
The utility model has designed a kind of annular magnet, ring is the N utmost point in it, outer shroud is the S utmost point, or interior ring is the S utmost point, outer shroud is the N utmost point, with the permanent magnet of this magnet as loud speaker, has the soft iron of an iron core that outer magnetic pole is incorporated into central authorities with central authorities, form strong centered magnetic field in the gap of iron core and internal magnetic pole, voice coil loudspeaker voice coil is put into slit between internal magnetic pole and the iron core.
This structure makes that the magnetic line of force in the permanent-magnetic field is more even, and voice coil loudspeaker voice coil is all put into permanent-magnetic field, and the magnetic line of force that voice coil loudspeaker voice coil produces and the magnetic line of force of permanent-magnetic field are vertical mutually, and consumption does not interact.Make permanent-magnetic field improve greatly to the functioning efficiency of voice coil loudspeaker voice coil.
With accompanying drawing the utility model is further described below:
An annular magnet 6, interior ring are the N utmost point, and outer shroud is the S utmost point, with the soft iron 7 of a central zone iron core outer magnetic pole S utmost point are guided to central authorities, make the gap of the iron core and the internal magnetic pole N utmost point form permanent-magnetic field, and voice coil loudspeaker voice coil 5 is put into slit between internal magnetic pole and the iron core.Voice coil loudspeaker voice coil 5 is connected to sound dish 2, and plate rail 1 and centring disk 4 are fixing with sound dish 2.
When input alternation voice-frequency signalling current from voice coil loudspeaker voice coil 5, in magnetic field, be subjected to the action principle of power according to electrical conductor, voice coil loudspeaker voice coil 5 shakes in permanent-magnetic field, and the vibrations of voice coil loudspeaker voice coil 5 drive sound dish 2, and the sound that restores audio signal comes, and fidelity is effective.
Claims (2)
1, a kind of loud speaker, form by permanent magnet (6), soft iron (7), voice coil loudspeaker voice coil (5) and sound dish (2), it is characterized in that: permanent magnet (6) is an annular magnet, ring is the N utmost point in it, outer shroud is the S utmost point, soft iron (7) is incorporated into central iron core with outer shroud S magnetic pole, and the gap of the iron core and the N utmost point forms permanent-magnetic field, voice coil loudspeaker voice coil (5) is put into the gap of the iron core and the N utmost point.
2, a kind of loud speaker, form by permanent magnet (6), soft iron (7), voice coil loudspeaker voice coil (5) and sound dish (2), it is characterized in that: permanent magnet (6) is an annular magnet, ring is the S utmost point in it, outer shroud is the N utmost point, soft iron (7) is incorporated into central iron core with outer shroud N magnetic pole, and the gap of the iron core and the S utmost point forms permanent-magnetic field, voice coil loudspeaker voice coil (5) is put into the gap of the iron core and the S utmost point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98246947 CN2358657Y (en) | 1998-12-04 | 1998-12-04 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98246947 CN2358657Y (en) | 1998-12-04 | 1998-12-04 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2358657Y true CN2358657Y (en) | 2000-01-12 |
Family
ID=33992249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98246947 Expired - Fee Related CN2358657Y (en) | 1998-12-04 | 1998-12-04 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2358657Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595289A (en) * | 2012-02-24 | 2012-07-18 | 精拓丽音科技（北京）有限公司 | Wireless charging receiving terminal integrated with loudspeaker |
| CN107547996A (en) * | 2017-09-29 | 2018-01-05 | 苏州盈腾五金制品有限公司 | A kind of loudspeaker on automobile |
-
1998
- 1998-12-04 CN CN 98246947 patent/CN2358657Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595289A (en) * | 2012-02-24 | 2012-07-18 | 精拓丽音科技（北京）有限公司 | Wireless charging receiving terminal integrated with loudspeaker |
| CN102595289B (en) * | 2012-02-24 | 2014-07-30 | 精拓丽音科技（北京）有限公司 | Wireless charging receiving terminal integrated with loudspeaker |
| CN107547996A (en) * | 2017-09-29 | 2018-01-05 | 苏州盈腾五金制品有限公司 | A kind of loudspeaker on automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |