CN101346011A - Thin type loudspeaker with reversing magnetic structure - Google Patents
Thin type loudspeaker with reversing magnetic structure Download PDFInfo
- Publication number
- CN101346011A CN101346011A CNA2008100229176A CN200810022917A CN101346011A CN 101346011 A CN101346011 A CN 101346011A CN A2008100229176 A CNA2008100229176 A CN A2008100229176A CN 200810022917 A CN200810022917 A CN 200810022917A CN 101346011 A CN101346011 A CN 101346011A
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- voice coil
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- yoke
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Abstract
The invention provides a thin type speaker with a reverted magnetic circuit structure, which achieves a thinner overall structure with almost no change to the low-frequency sound performance. According to the design scheme provided in the invention, a magnetic circuit driving structure is disposed on basket, which is characterized in: in the magnetic circuit driving structure, the top of the inverted magnetic yoke outer wall is combined with the top of the basket while setting the open end of the magnetic yoke downward; the inner wall of the magnetic yoke top is connected to magnet, a magnetic pole core is set under the magnet, and a sound ring is set on the open end of the magnet yoke; a magnetic gap is formed between the magnet yoke and the magnet pole core; the under-part inner wall of the basket is connected to the sound basin with a fold ring and the edge of location support piece respectively; the center hole of the sound basin with a fold ring and the location support piece is connected to a sound ring for keeping the sound ring suspended in the magnet gap. Setting the magnetic circuit structure of the speaker reverted makes the speaker structure thinner while keeping the magnetic circuit driving capability. Accordingly, the invention is especially applicable in audio frequency scheme design of plateau form video equipment like LCD and PDP.
Description
Technical field
The invention belongs to a kind of thin speaker of reversing magnetic structure, is a kind of dull and stereotyped video equipment that is applicable to, is not changing substantially under the situation of all-bottom sound performance, with the loudspeaker design scheme of the further slimming of loud speaker overall structure.
Background technology
Be applied to the loud speaker of plate video equipments such as LCD, PDP now,, generally can adopt more flat loudspeaker cone and sound basin in order to make whole loudspeaker unit structure thinner.And the magnetic circuit drive part can only adopt traditional structure, can't be with the further slimming of loadspeaker structure.Perhaps, in order to realize the slimming of loadspeaker structure, the structure of magnetic circuit drive part have to be changed for a short time, this inevitably causes the magnetic circuit of loudspeaker driving force to reduce again, the LF-response degradation.
Summary of the invention
The object of the present invention is to provide a kind of thin speaker of reversing magnetic structure, this magnetic circuit structure for loudspeaker adopts oppositely and is provided with, keeping under the constant prerequisite of magnetic circuit driving force, therefore the loadspeaker structure attenuation can be specially adapted to the audio scheme design of plate video equipments such as LCD, PDP.
According to design provided by the present invention, the magnetic circuit Drive Structure is set on the basin frame, it is characterized in that: in described magnetic circuit Drive Structure, the top exterior walls of the conductive magnetic yoke of back-off combines with the top of basin frame, the opening of conductive magnetic yoke down, connect magnet in the top inner wall of conductive magnetic yoke, magnetic pole core is arranged below magnet, voice coil loudspeaker voice coil is arranged at the openend of conductive magnetic yoke; Between conductive magnetic yoke and magnet and magnetic pole core, form magnetic gap; The lower inner wall of basin frame is connected with the sound basin of band ring and the edge of locating branch slice respectively, and the sound basin of band ring and the centre bore of locating branch slice are connected with voice coil loudspeaker voice coil, make voice coil suspension in magnetic gap.
Top at the basin frame is provided with reinforcement, and described conductive magnetic yoke is installed on the reinforcement.Described reinforcement can be one or some, is mainly to guarantee when conductive magnetic yoke is installed enough intensity to be arranged, and can shake by the generation machine during speaker operation.Described basin frame comprises a cylindrical body, and is positioned at some reinforcements of cylindrical body end.Described reinforcement passes the center of basin frame.The section of described locating branch slice is undaform.The convex portions of band ring sound basin points to the conductive magnetic yoke concave part and points to locating branch slice.Top at voice coil loudspeaker voice coil is wound with voice coil leads, and described voice coil leads is attached on the voice coil loudspeaker voice coil, extends downwards then and is attached on the convex surface of band ring sound basin.
Terminal block is set on reinforcement, and voice coil leads is connected with an end of establishment lead-out wire, and the other end of establishment lead-out wire is connected with terminal block.With the end of an end of being with ring sound basin and locating branch slice to combine dust cover is set at voice coil loudspeaker voice coil.
Advantage of the present invention is: the mode that combines with the sound basin bottom part with traditional conductive magnetic yoke bottom is different, and definite says, it is oppositely to install that conductive magnetic yoke is compared with traditional structure, therefore also fully oppositely setting of whole magnetic circuit drive part.And sound basin and locating branch slice are then similar to traditional structure, are forward settings, make the magnetic structure part be included in sound basin inside fully, and whole loadspeaker structure can significantly reduce magnetic structure part, the especially height of conductive magnetic yoke.And the magnetic circuit driving force remains unchanged substantially, and this will be extremely helpful to the design of thin speaker.
Description of drawings
Fig. 1 is a sectional structure chart of the present invention.
Fig. 2 is a front schematic view of the present invention.
Embodiment
Described conductive magnetic yoke 2 is commonly called as U iron, is meant the conductive magnetic yoke that vertical section takes the shape of the letter U, and this conductive magnetic yoke is that an a kind of end has bottom surface, the unlimited cylindrical shell of the other end, and the sidewall and the bottom surface of cylindrical shell are sealed.In the prior art, conductive magnetic yoke all is that opening is upwards arranged, in the present invention, then arranges that formed a kind of loud speaker of uniqueness, this arrangement is particularly suitable for making slim loud speaker Open Side Down.
As shown in the figure: be provided with reinforcement 13 at the top of basin frame 1, conductive magnetic yoke 2 is set on the reinforcement 13, the recess outer wall and the reinforcement 13 of conductive magnetic yoke 2 are combined closely, the recess inwall of conductive magnetic yoke 2 is provided with magnet 3, the top inner wall of the top and conductive magnetic yoke 2 of magnet 3 is combined closely, the following magnetic pole core 4 that then is provided with of magnet 3, magnetic pole core 4 is combined closely with magnet 3.Between the inwall of conductive magnetic yoke 2 and magnet 3 and magnetic pole core 4, form a magnetic gap 11, the upper end of voice coil loudspeaker voice coil 5 is suspended in the magnetic gap 11, conductive magnetic yoke 2 is stretched out in the lower end of voice coil loudspeaker voice coil 5, the marginal portion of the sound basin 6 of band ring combines with the inwall of basin frame 1, the core of band ring sound basin 6 is penetrated by the lower end of voice coil loudspeaker voice coil 5, and combines closely with the lower end outer wall of voice coil loudspeaker voice coil 5.Wherein the convex portions with ring sound basin 6 points to conductive magnetic yoke 2, concave part points to locating branch slice 7, the marginal portion of locating branch slice 7 combines with the lower inner wall of basin frame 1, and the core of locating branch slice 7 is penetrated by voice coil loudspeaker voice coil 5 equally, combines closely with the outer wall of voice coil loudspeaker voice coil 5.The outer wall of voice coil loudspeaker voice coil 5 is combined closely with the core of locating branch slice 7 with band ring sound basin 6 simultaneously.Be wound with lead-in wire 12 on the top of voice coil loudspeaker voice coil 5, voice coil leads 12 is attached on the voice coil loudspeaker voice coil 5, and extends downwardly on the convex surface of band ring sound basin 6, and voice coil leads 12 is extended on the convex surface that is attached to band ring sound basin 6 then.One end of establishment lead-out wire 9 is connected with voice coil leads 12, and the other end of establishment lead-out wire 9 is connected with terminal block 10, and terminal block 10 is arranged on an end of reinforcement 13.With the end of an end of being with ring sound basin 6 and locating branch slice 7 to combine dust cover 8 is set at voice coil loudspeaker voice coil 5.
When at terminal block 10 1 end input electrical signals, the signal of telecommunication is by establishment lead-out wire 9 and voice coil leads 12, driving voice coil loudspeaker voice coil 5 moves in magnetic gap 11, voice coil loudspeaker voice coil 5 pumps in magnetic gap 11 and drives band ring sound basin 6 and pump with locating branch slice 7, thereby makes the loud speaker can radiation sound.
Conductive magnetic yoke 2 of the present invention is reversed on the reinforcement 13 that is arranged on basin frame 1 top, make the magnetic circuit of loudspeaker Drive Structure oppositely to be provided with, and be inclusive in the inside of basin frame 1, make loadspeaker structure thinner, the present invention is different from the conventional loudspeakers that magnetic structure is arranged on basin frame outside, therefore greatly reduce the thickness of whole loud speaker, and keep the LF-response performance constant substantially.
Claims (10)
1, the thin speaker of reversing magnetic structure, comprise a basin frame (1), and be arranged on magnetic circuit Drive Structure on the basin frame (1), it is characterized in that: in described magnetic circuit Drive Structure, the top exterior walls of the conductive magnetic yoke of back-off (2) combines with the top of basin frame (1), and the opening of conductive magnetic yoke (2) connects magnet (3) in the top inner wall of conductive magnetic yoke (2) down, magnetic pole core (4) is arranged below magnet (3), voice coil loudspeaker voice coil (5) is arranged at the openend of conductive magnetic yoke (2); Between conductive magnetic yoke (2) and magnet (3) and magnetic pole core (4), form magnetic gap (11); The lower inner wall of basin frame (1) is connected with the sound basin (6) of band ring and the edge of locating branch slice (7) respectively, and the sound basin (6) of band ring and the centre bore of locating branch slice (7) are connected with voice coil loudspeaker voice coil (5), and voice coil loudspeaker voice coil (5) is suspended in the magnetic gap (11).
2, the thin speaker of reversing magnetic structure according to claim 1, it is characterized in that: be provided with reinforcement (13) at the top of basin frame (1), described conductive magnetic yoke (2) is installed on the reinforcement (13).
3, as the thin speaker of reversing magnetic structure as described in the claim 2, it is characterized in that: described reinforcement (13) has some.
4, the thin speaker of reversing magnetic structure according to claim 1, it is characterized in that: described basin frame (1) comprises a cylindrical body, and is positioned at the some reinforcements (13) of cylindrical body end.
5, as the thin speaker of reversing magnetic structure as described in the claim 4, it is characterized in that: described reinforcement (13) passes the center of basin frame (1).
6, the thin speaker of reversing magnetic structure according to claim 1, it is characterized in that: the section of described locating branch slice (7) is undaform.
7, the thin speaker of reversing magnetic structure according to claim 1 is characterized in that: the convex portions of band ring sound basin (6) points to conductive magnetic yoke (2), and concave part points to locating branch slice (7).
8, the thin speaker of reversing magnetic structure according to claim 1, it is characterized in that: be wound with voice coil leads (12) on the top of voice coil loudspeaker voice coil (5), described voice coil leads (12) is attached on the voice coil loudspeaker voice coil (5), extends downwards then and is attached on the convex surface of band ring sound basin (6).
9, the thin speaker of reversing magnetic structure according to claim 1, it is characterized in that: be provided with reinforcement (13) at the top of basin frame (1), terminal block (10) is set on reinforcement (13), on voice coil loudspeaker voice coil (5), be wound with voice coil leads (12), voice coil leads (12) is connected with an end of establishment lead-out wire (9), and the other end of establishment lead-out wire (9) is connected with terminal block (10).
10, the thin speaker of reversing magnetic structure according to claim 1 is characterized in that: the end of an end that combines with band ring sound basin (6) and locating branch slice (7) at voice coil loudspeaker voice coil (5) is provided with dust cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100229176A CN101346011A (en) | 2008-07-02 | 2008-07-02 | Thin type loudspeaker with reversing magnetic structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100229176A CN101346011A (en) | 2008-07-02 | 2008-07-02 | Thin type loudspeaker with reversing magnetic structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101346011A true CN101346011A (en) | 2009-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100229176A Pending CN101346011A (en) | 2008-07-02 | 2008-07-02 | Thin type loudspeaker with reversing magnetic structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101346011A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026067A (en) * | 2011-01-12 | 2011-04-20 | 常州声泰龙电子音响有限公司 | Loudspeaker and vibration part thereof |
| CN102300143A (en) * | 2010-06-28 | 2011-12-28 | 马春彪 | Thin type speaker |
| CN112954555A (en) * | 2021-04-22 | 2021-06-11 | 歌尔股份有限公司 | Loudspeaker and electronic equipment |
| CN115396790A (en) * | 2022-08-09 | 2022-11-25 | 苏州上声电子股份有限公司 | Flip-chip speaker and car audio system |
-
2008
- 2008-07-02 CN CNA2008100229176A patent/CN101346011A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300143A (en) * | 2010-06-28 | 2011-12-28 | 马春彪 | Thin type speaker |
| CN102026067A (en) * | 2011-01-12 | 2011-04-20 | 常州声泰龙电子音响有限公司 | Loudspeaker and vibration part thereof |
| CN102026067B (en) * | 2011-01-12 | 2013-07-24 | 常州声泰龙电子音响有限公司 | Loudspeaker and vibration part thereof |
| CN112954555A (en) * | 2021-04-22 | 2021-06-11 | 歌尔股份有限公司 | Loudspeaker and electronic equipment |
| CN115396790A (en) * | 2022-08-09 | 2022-11-25 | 苏州上声电子股份有限公司 | Flip-chip speaker and car audio system |
| WO2024031866A1 (en) * | 2022-08-09 | 2024-02-15 | 苏州上声电子股份有限公司 | Flip-chip loudspeaker and vehicle audio system |
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| PB01 | Publication | ||
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Open date: 20090114 |