CN201887936U - Series-parallel connection mixed superimposed magnetic circuit structure - Google Patents
Series-parallel connection mixed superimposed magnetic circuit structure Download PDFInfo
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- CN201887936U CN201887936U CN2010205138655U CN201020513865U CN201887936U CN 201887936 U CN201887936 U CN 201887936U CN 2010205138655 U CN2010205138655 U CN 2010205138655U CN 201020513865 U CN201020513865 U CN 201020513865U CN 201887936 U CN201887936 U CN 201887936U
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Abstract
The utility model relates to a series-parallel connection mixed superimposed magnetic circuit structure applied to a loudspeaker. The magnetic circuit structure comprises an annular magnetic-conductive upper plate, a magnetic-conductive lower plate provided with a magnetic conduction column, a first round magnet arranged above the magnetic-conductive lower plate, a first annular magnet arranged between the magnetic-conductive upper plate and the magnetic-conductive lower plate, and a second annular magnet arranged on the bottom surface of the magnetic-conductive lower plate. The magnetic circuit structure is characterized in that a round magnetic-conductive plate is further arranged on the bottom surface of the first round magnet, and a second round magnet is arranged on the bottom surface of the round magnetic-conductive plate. The utility model provides the loudspeaker magnetic circuit structure with higher magnetic property than the prior art through improving the prior art, makes breakthrough on the magnetic property limitation of the conventional external magnetic loudspeaker, further improves the magnetic property under the condition that the appearance and other practicability are not changed, provides convenience for the improvement on the loudspeaker sensitivity and the further decrease on the Q value of a small-dimension loudspeaker, and ensures that a popular small-dimension miniature sounding has better bass effect.
Description
Technical field
The utility model relates to a kind of connection in series-parallel mixed magnetic circuit structure that is applied to loud speaker.
Background technology
For many years, the loud speaker those of skill in the art are in order to obtain more highly sensitive loud speaker, are devoted to strengthen the research of the performance of magnetic circuit of loudspeaker always.
On the magnetic structure of prior art, external magnetic type structure is the most frequently used frame mode always.Basic external magnetic circuit structure is by toroidal magnet, annular magnetic conduction upper plate and has the magnetic circuit that the magnetic conduction lower plate of conducting magnetic column constitutes.The concrete structure and the operation principle of this magnetic circuit are as follows: at first, adopt the axial charging mode to magnetize to toroidal magnet; Then, the conducting magnetic column of magnetic conduction lower plate passes the centre bore of toroidal magnet, the bottom surface of toroidal magnet is the N utmost point, the magnetic line of force of toroidal magnet is to arrive conducting magnetic column along the magnetic conduction lower plate, periphery at conducting magnetic column forms the N utmost point, and in addition, the other one side S utmost point and the annular magnetic conduction upper plate of toroidal magnet are bonding, therefore, the magnetic line of force is got back to the S utmost point by annular magnetic conduction upper plate again.So in conducting magnetic column outer ring and magnetic conduction upper plate, form the magnetic field of approximately linear between the ring.Utilize this linear magnetic field to the active force that hot-wire coil produces, be the motive power that promotes the loud speaker running.
Through technical staff's continuous effort, on existing magnetic structure, made improvement, the magnetic property of magnetic circuit has obtained certain lifting.As shown in Figure 1, concrete improved magnetic structure and operation principle are as follows:
1. increase a toroidal magnet 17 in magnetic conduction lower plate 12 bottom surfaces, make the N utmost point of toroidal magnet 17 be affixed on the bottom surface of magnetic conduction lower plate 12, the magnetic line of force of toroidal magnet 17 is promptly along magnetic conduction lower plate 12, with the magnetic line of force mutual superposition that toroidal magnet 13 on the magnetic conduction upper plate 12 forms, obtain the magnetic circuit that magnetic property strengthens on magnetic conduction lower plate 12.
2. with 1 principle, on the conducting magnetic column of magnetic conduction lower plate 12, increase a circular magnet 16, the N utmost point of circular magnet 16 is attached on the conducting magnetic column.
Above-mentioned two kinds of modes that strengthen magnetic property lump together, and are the external magnetic circuit structures that magnetic property is stronger in the prior art.
This magnetic structure that has made improvements be in order to be applied in the little audio amplifier, but the effect that obtains is not fine.Suffer from three aspect reasons: little loudspeaker sensitivity is low excessively, the loud speaker operatic tunes is undersized, loud speaker Qts is too high, therefore is difficult to design the loud speaker with good low-frequency effect.As everyone knows, if will improve the low-frequency effect of loud speaker, the magnetic property that promotes magnetic circuit is the most effective way.Therefore be necessary to design the stronger magnetic structure of a kind of magnetic property.
The utility model content
The utility model is improvements over the prior art, provides a kind of connection in series-parallel stronger than prior art magnetic to mix the stack magnetic structure.
The utility model in order to achieve the above object, the technical scheme that adopts is as follows: a kind of connection in series-parallel mixes the stack magnetic structure, comprise annular magnetic conduction upper plate, magnetic conduction lower plate with conducting magnetic column, be arranged on the first circular magnet of the conducting magnetic column top of described magnetic conduction lower plate, be arranged on first toroidal magnet between described magnetic conduction upper plate and the magnetic conduction lower plate, and second toroidal magnet that is arranged on the bottom surface of described magnetic conduction lower plate, it is characterized in that: the described first circular magnet bottom surface also is provided with circular magnetic conductive board, and described circular magnetic conductive board bottom surface is provided with the second circular magnet.
Described annular magnetic conduction upper plate and circular magnetic conductive board are located on the same horizontal plane.Promptly compare with the magnetic structure of prior art, being equivalent to increases magnet in the middle of conducting magnetic column, and this method is equivalent in the circuit, between the lead that electric current is arranged, increase power supply again, can increase electric current, equivalence is come, and increases magnet and can increase magnetic flux equally in the middle of conducting magnetic column.This is to combine with prior art, and the connection in series-parallel of realization mixes the stack magnetic circuit, thereby makes the magnetic circuit performance obtain huge lifting.
The center of circle of the described first circular magnet, magnetic conduction upper plate, circular magnetic conductive board, the second circular magnet, first toroidal magnet, magnetic conduction lower plate and second toroidal magnet is all on same axis.
The end face of the bottom surface of the end face of the bottom surface of the described first circular magnet, the second circular magnet, first toroidal magnet and second toroidal magnet is the N utmost point.
The utility model compared with prior art, adopt the middle method that increases magnet of conducting magnetic column of magnetic magnetic circuit outside, promptly form connection in series-parallel and mix the stack magnetic circuit, thereby obtain a magnetic circuit that magnetic property is superpower, broken through the magnetic property limitation of existing outer-magnet speaker, under the constant situation of outward appearance and other practicality, magnetic property is further promoted, be must rising of loudspeaker sensitivity, small size loud speaker Q value further reduces provides the space, make popular instantly small size mini audio design better bass effect, but do not influence the enforcement that other strengthen the magnetic property mode, can on a magnetic circuit, use simultaneously.
Description of drawings
Fig. 1 is the profile of the magnetic structure of prior art
Fig. 2 is the profile of the magnetic structure of the utility model embodiment
Embodiment
As shown in Figure 2, a kind of connection in series-parallel mixes the stack magnetic structure, comprise second toroidal magnet 7, be arranged on the magnetic conduction lower plate 2 with conducting magnetic column of second toroidal magnet, 7 end faces, the bottom surface and second toroidal magnet, 7 end faces that are magnetic conduction lower plate 2 join, be enclosed within first toroidal magnet 3 on the magnetic conduction lower plate 2, it is the centre bore that the conducting magnetic column of magnetic conduction lower plate 2 passes first toroidal magnet 3, be arranged on the annular magnetic conduction upper plate 1 of first toroidal magnet, 3 end faces, be arranged on the second circular magnet 4 on magnetic conduction lower plate 2 conducting magnetic columns, be arranged on the circular magnetic conductive board 5 of second circular magnet 4 end faces, and the first circular magnet 6 that is arranged on circular magnetic conductive board 5 end faces.
The first circular magnet 6 and the second circular magnet 4 all adopt the terres rares ferromagnetic material to make, and remaining magnet is common ferrite material, and each magnetic conductive board all adopts the low-carbon (LC) steel to make.
The mode that magnetizes of described each magnet all adopts axial charging.
Described annular magnetic conduction upper plate 1 is located on the same horizontal plane with circular magnetic conductive board 5.
The center of circle of the described first circular magnet 6, magnetic conduction upper plate 1, circular magnetic conductive board 5, the second circular magnet 4, first toroidal magnet 3, magnetic conduction lower plate 2 and second toroidal magnet 7 is all on same axis.
The end face of the bottom surface of the end face of the bottom surface of the described first circular magnet 6, the second circular magnet 4, first toroidal magnet 3 and second toroidal magnet 7 is the N utmost point.
The magnetic flux density that adopts simulation softward (FMM4.0) contrast test prior art magnetic circuit and present embodiment magnetic-path to make progress.The material of each parts on the magnetic structure of the prior art all material with the corresponding parts of present embodiment is identical.After tested, the magnetic flux density of prior art magnetic circuit is 1.08T, and the magnetic flux density of present embodiment magnetic circuit is 1.33T.Therefore, the magnetic property of the magnetic structure of present embodiment strong than prior art.
The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.
Claims (4)
1. a connection in series-parallel mixes the stack magnetic structure, comprise annular magnetic conduction upper plate, magnetic conduction lower plate with conducting magnetic column, be arranged on the first circular magnet of the conducting magnetic column top of described magnetic conduction lower plate, be arranged on first toroidal magnet between described magnetic conduction upper plate and the magnetic conduction lower plate, and second toroidal magnet that is arranged on the bottom surface of described magnetic conduction lower plate, it is characterized in that: the described first circular magnet bottom surface also is provided with circular magnetic conductive board, and described circular magnetic conductive board bottom surface is provided with the second circular magnet.
2. a kind of connection in series-parallel as claimed in claim 1 mixes the stack magnetic structure, and it is characterized in that: described annular magnetic conduction upper plate and circular magnetic conductive board are located on the same horizontal plane.
3. a kind of connection in series-parallel as claimed in claim 2 mixes the stack magnetic structure, and it is characterized in that: the center of circle of the first circular magnet, magnetic conduction upper plate, circular magnetic conductive board, the second circular magnet, first toroidal magnet, magnetic conduction lower plate and second toroidal magnet is all on same axis.
4. each described a kind of connection in series-parallel mixes the stack magnetic structure as claim 1-3, and it is characterized in that: the end face of the end face of the bottom surface of the described first circular magnet, the second circular magnet, the bottom surface of first toroidal magnet and second toroidal magnet is the N utmost point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205138655U CN201887936U (en) | 2010-08-31 | 2010-08-31 | Series-parallel connection mixed superimposed magnetic circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205138655U CN201887936U (en) | 2010-08-31 | 2010-08-31 | Series-parallel connection mixed superimposed magnetic circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201887936U true CN201887936U (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205138655U Expired - Fee Related CN201887936U (en) | 2010-08-31 | 2010-08-31 | Series-parallel connection mixed superimposed magnetic circuit structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN201887936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888937A (en) * | 2019-04-29 | 2019-06-14 | 曹颂 | The integrated molding magnetically soft alloy structure of low frequency magnetic conduction |
-
2010
- 2010-08-31 CN CN2010205138655U patent/CN201887936U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888937A (en) * | 2019-04-29 | 2019-06-14 | 曹颂 | The integrated molding magnetically soft alloy structure of low frequency magnetic conduction |
| CN109888937B (en) * | 2019-04-29 | 2023-11-07 | 曹颂 | Integrated soft magnetic alloy structure with low-frequency magnetic conduction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20180831 |