CN2243757Y - Long magnetic path speaker - Google Patents
Long magnetic path speaker Download PDFInfo
- Publication number
- CN2243757Y CN2243757Y CN 95237047 CN95237047U CN2243757Y CN 2243757 Y CN2243757 Y CN 2243757Y CN 95237047 CN95237047 CN 95237047 CN 95237047 U CN95237047 U CN 95237047U CN 2243757 Y CN2243757 Y CN 2243757Y
- Authority
- CN
- China
- Prior art keywords
- voice coil
- magnet steel
- magnet
- magnetic
- magnetic conductive
- 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
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Abstract
The utility model relates to a novel long magnetic path speaker. The magnet of the utility model is composed of more than two steel magnets which are made of high-strength permanent magnetic material, each steel magnet is tile-shaped and arranged between an annular external magnetism conducting plate and an annular inner magnetism conducting plate, and a magnetism field gap is formed between the external magnetism conducting plate and the inner magnetism conducting plate in which the coils of a voice coil are arranged. The utility model has the advantages of long stroke, low distortion, easy manufacture, light weight and low cost, overcomes the deficiencies of the prior art and raises the relevant indexes of the loudspeaker.
Description
The utility model relates to a kind of loud speaker of new magnetic circuit, specifically refers to a kind of novel long magnetic circuit loudspeaker.
Existing loud speaker is of a great variety, its magnetic circuit generally all is made up of the annular magnet and the irony parts with matching of monoblock, the magnetic field pole-face of this class loud speaker acts on voice coil loudspeaker voice coil after by guide plate, its scene is inhomogeneous, thereby its active force is weak, stroke internal linear magnetic field is inhomogeneous, is easy to generate distortion and leak in magnetic field, and influences the tonequality of loud speaker, the magnet steel and the guide plate of existing loud speaker are often heavier simultaneously, have influenced the scope of application of loud speaker to a certain extent.
The purpose of this utility model just is to provide a kind of employing polylith tile-shaped magnet steel to replace integral ring-shaped magnet, and have long stroke, low distortion, and be easy to process, in light weight, cost low and the novel long magnetic circuit loudspeaker of efficient magnetic loop, thereby overcome the deficiencies in the prior art effectively, greatly improved the relevant index of loud speaker.
The purpose of this utility model realizes in the following manner: a kind of novel long magnetic circuit loudspeaker, mainly form by basin frame, vibrating diaphragm, voice coil loudspeaker voice coil magnetic conductive board and magnet steel, it is characterized in that magnet is to adopt magnet steel more than two or two, that made by high strong permanent magnet material to form, its every magnet steel is the identical tile of shape, be distributed between the outer magnetic conductive board of annular and interior magnetic conductive board that is connected in one, be provided with the slit, magnetic field between magnet steel and interior magnetic conductive board, the coil device of voice coil loudspeaker voice coil within it.
Adopt long magnetic circuit loudspeaker of the present utility model, owing to replace traditional annular magnet with the polylith tile-shaped magnet steel, change in the past the magnetic field pole-face preferably and acted on voice coil loudspeaker voice coil after by magnetic conductive board, and its active force is weak, stroke internal linear magnetic field is inhomogeneous, be easy to generate the deficiency that leaks in distortion and magnetic field, and have long stroke, low distortion, and be easy to process, in light weight, advantage that cost is low, thereby overcome the deficiencies in the prior art effectively, greatly having improved the relevant index of loud speaker, is a kind of very desirable novel long magnetic circuit loudspeaker.
Description of drawings.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the magnetic loop profile of the utility model embodiment.
Wherein: 1-basin frame, 2-vibrating diaphragm, 3-terminal block, 4-lead-in wire, 5-locating branch slice, 6-dust cap, magnetic conductive board in the 7-voice coil loudspeaker voice coil, 8-, 9-magnet steel, the outer magnetic conductive board of 10-.
Below in conjunction with accompanying drawing the utility model is further described.
As shown in drawings, long magnetic circuit loudspeaker of the present utility model, mainly by basin frame (1), vibrating diaphragm (2), terminal block (3), lead-in wire (4), locating branch slice (5), dust cap (6), voice coil loudspeaker voice coil (7), magnetic conductive board and magnet steel (9) are formed, wherein magnet is to adopt more than two or two, form by the magnet steel (9) that high strong permanent magnet material is made, its every magnet steel is the identical tile of shape, be distributed between the annular outer magnetic conductive board (10) and interior magnetic conductive board (8) that is connected in one, be provided with the slit, magnetic field between magnet steel (9) and interior magnetic conductive board (8), the coil device of voice coil loudspeaker voice coil (7) within it.
In embodiment of the present utility model, magnet steel is that 8 slices watts of identical shape magnet steel of shape are formed, and stick at the inner face of outer magnetic conductance plate, and a utmost point (as the N utmost point) that makes the magnetic field face is directly over against the coil outside of voice coil loudspeaker voice coil, and another pole-face (the S utmost point) acts on the coil inboard of voice coil loudspeaker voice coil by magnetic conductive loop.Other structures of loud speaker are constant.
Claims (2)
1, a kind of novel long magnetic circuit loudspeaker, mainly form by basin frame (1), vibrating diaphragm (2), voice coil loudspeaker voice coil (7), magnetic conductive board and magnet steel (9), it is characterized in that magnet is to adopt magnet steel (9) more than two or two, that made by high strong permanent magnet material to form, its every magnet steel (9) is the identical tile of shape, be distributed between the annular outer magnetic conductive board (10) and interior magnetic conductive board (8) that is connected in one, be provided with the slit, magnetic field between magnet steel (9) and interior magnetic conductive board (8), the coil device of voice coil loudspeaker voice coil (7) within it.
2, novel long magnetic circuit loudspeaker according to claim 1, it is characterized in that described magnet is made up of the identical 8 slices watts of shape magnet steel (9) of shape, and stick at the inner face of outer magnetic conductance plate (10), a utmost point (as the N utmost point) that makes the magnetic field face is directly over against the coil outside of voice coil loudspeaker voice coil, and another pole-face (the S utmost point) acts on the coil inboard of voice coil loudspeaker voice coil (7) by magnetic conductive loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95237047 CN2243757Y (en) | 1995-06-20 | 1995-06-20 | Long magnetic path speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95237047 CN2243757Y (en) | 1995-06-20 | 1995-06-20 | Long magnetic path speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2243757Y true CN2243757Y (en) | 1996-12-25 |
Family
ID=33879881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95237047 Expired - Fee Related CN2243757Y (en) | 1995-06-20 | 1995-06-20 | Long magnetic path speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2243757Y (en) |
-
1995
- 1995-06-20 CN CN 95237047 patent/CN2243757Y/en not_active Expired - Fee Related
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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 |