CN201216017Y - Thin type loudspeaker without magnetic conductive yoke - Google Patents
Thin type loudspeaker without magnetic conductive yoke Download PDFInfo
- Publication number
- CN201216017Y CN201216017Y CNU2008200402866U CN200820040286U CN201216017Y CN 201216017 Y CN201216017 Y CN 201216017Y CN U2008200402866 U CNU2008200402866 U CN U2008200402866U CN 200820040286 U CN200820040286 U CN 200820040286U CN 201216017 Y CN201216017 Y CN 201216017Y
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- CN
- China
- Prior art keywords
- voice coil
- basin
- basin frame
- sound
- pole core
- 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 - Lifetime
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Abstract
The utility model relates to a loudspeaker, in particular to a thin-type loudspeaker, which uses a novel magnetic circuit structure instead of a magnetic conductive yoke. According to the design scheme which is provided by the utility model, a patch board is arranged on a basin frame whose bottom portion is closed, the bottom portion of the basin frame is equipped with a main magnetic body, a magnetic pole core and an auxiliary magnetic body which are mutually combined, a sound ring is surrounded on the periphery of the main magnetic body, the magnetic pole core and the auxiliary magnetic body, a sound basin with a folding ring is arranged on the upper portion of the basin frame, the edge portion thereof is combined with the basin frame, a middle hole portion on the bottom portion is closely combined with the outer wall of the sound ring, a position support clip is arranged on the lower portion of the sound basin with the folding ring, the edge portion of the position support clip is closely combined with the basin frame, and the middle hole portion is combined with the outer wall of the sound ring. The loudspeaker has the advantages that the basin frame whose bottom portion is closed is used, a magnetic conductive yoke structure is omitted, which leads the thickness of the loudspeaker to be further optimized, the auxiliary magnetic body is used simultaneously, the magnetic flux density which is reduced because the magnetic conductive yoke is omitted is increased, which leads the sound performance to be increased, which leads the loudspeaker to be suitable for novel plate video equipment.
Description
Technical field
The utility model relates to loud speaker, specifically a kind of thin speaker without conductive magnetic yoke that adopts novel magnetic structure.
Background technology
Be applied to the loud speaker of plate video equipments such as LCD, PDP now, the general internal magnetic circuit structure that adopts, the magnet centering, the conductive magnetic yoke that is the U type on every side around a section, also be usually said U iron, this kind magnetic structure is compared external magnetic circuit, and shared volume is little, can effectively reduce the thickness of whole loadspeaker structure.But, because the existence of U iron makes loadspeaker structure can't optimize thinlyyer.
Summary of the invention
The purpose of this utility model is to provide a kind of thin speaker without conductive magnetic yoke, and this loudspeaker unit can make loadspeaker structure thinner, and acoustic performance and conventional loudspeakers relatively do not have obvious reduction, therefore is specially adapted to plate video equipments such as LCD, PDP.
According to design provided by the utility model, directly be provided with main magnet in the bottom of basin frame, on main magnet, magnetic pole core is set, auxiliary magnet is set on magnetic pole core, voice coil loudspeaker voice coil be looped around main magnet, magnetic pole core and auxiliary magnet around.
Main magnet is identical with the structure of auxiliary magnet, polar repulsion.Combine closely with the bottom of basin frame under the described main magnet.Combine closely between described main magnet and the magnetic pole core, combine closely between described magnetic pole core and the auxiliary magnet.The outer wall of voice coil loudspeaker voice coil and the centre bore of locating branch slice are combined closely, and the middle part of the edge of described locating branch slice and basin frame interconnects.
The outer wall of voice coil loudspeaker voice coil interconnects with the centre bore of the sound basin of band ring, and the edge of sound basin and basin frame interconnect.The outer wall of voice coil loudspeaker voice coil is connected with the centre bore of locating branch slice, and the edge of described locating branch slice is connected with the middle part of basin frame; The outer wall of voice coil loudspeaker voice coil is connected with the centre bore of the sound basin of being with ring simultaneously, and the edge of sound basin is connected with the top of basin frame; Make voice coil suspension around magnet, magnetic pole core and auxiliary magnet; Described sound basin is arranged on the top of locating branch slice.
Top at voice coil loudspeaker voice coil is provided with dust cover.Side at the basin frame is provided with terminal block, and the lead-in wire of voice coil loudspeaker voice coil is attached to the upper surface of sound basin, and the lead-in wire and the lead-out wire of voice coil loudspeaker voice coil interconnect, and the other end of lead-out wire is connected with terminal block.
The utility model has the advantages that: adopt the airtight basin frame in bottom, dispensed the conductive magnetic yoke structure, make that loud speaker thickness is further optimized, use an auxiliary magnet simultaneously, improve because of saving the magnetic flux density that conductive magnetic yoke reduces, acoustic performance is improved, to be applicable to the novel flat-plate video equipment.
Description of drawings
Fig. 1 is this utility model loud speaker sectional structure chart.
Fig. 2 is a magnetic speaker sectional structure chart in the tradition.
Embodiment
The thin speaker of this novel magnetic structure, employing is with the airtight basin frame 1 in bottom, be provided with a cylindric main magnet 2 in basin frame 1 bottom, be provided with a cylindric magnetic pole core 3 directly over the cylindric main magnet 2, be provided with a cylindric auxiliary magnet 4 directly over the magnetic pole core 3, cylindric main magnet 2 is identical with auxiliary magnet 4 structures, polar repulsion, main magnet 2 and magnetic pole core 3 and auxiliary magnet 4 are combined closely, and combine closely with basin frame 1 bottom under the main magnet 2.Around main magnet 2, magnetic pole core 3 and auxiliary magnet 4, voice coil loudspeaker voice coil 5 around a band lead-in wire, the centre bore of the outer wall of voice coil loudspeaker voice coil 5 and locating branch slice 6 is combined closely, the edge of locating branch slice 6 and basin frame 1 are combined closely, band ring sound basin 7 is arranged on locating branch slice 6 tops, its middle pitch basin 7 bottom centre holes and voice coil loudspeaker voice coil 5 outer walls are combined closely, and sound basin 7 edges and basin frame 1 are combined closely.Sound basin 7 bottom centre holes, locating branch slice 6 centre bores and voice coil loudspeaker voice coil 5 are combined closely, make voice coil loudspeaker voice coil 5 can be suspended in magnet 2, magnetic pole core 3 and auxiliary magnet 4 around, voice coil loudspeaker voice coil 5 tops are provided with a dust cover 8.Side at basin frame 1 is provided with terminal block 10, and voice coil loudspeaker voice coil 5 lead-in wires are connected with lead-out wire 9 attached to sound basin 1 upper surface, and lead-out wire 9 is connected with terminal block 10.
Behind terminal block 10 input electrical signals, the signal of telecommunication drives voice coil loudspeaker voice coil 5 and pumps by terminal block 10 and lead-out wire 9, and voice coil loudspeaker voice coil 5 drives 7 vibrations of sound basin, to external radiation sound.
Because the mesopore of sound basin 7 is combined closely with the mesopore of locating branch slice 6 and the outer wall of voice coil loudspeaker voice coil 5, support each other, make voice coil loudspeaker voice coil 5 be suspended in main magnet 2, magnetic pole core 3 and auxiliary magnet 4 around.7 vibrations of voice coil loudspeaker voice coil 5 energising rear drive sound basins are to external radiation sound.
Structure of the present utility model has been removed traditional conductive magnetic yoke 11, make the height of this novel interior magnetic speaker magnetic circuit part be reduced, owing to be provided with auxiliary magnet 4, make the magnetic circuit driving force not reduce, optimized loadspeaker structure to greatest extent under the prerequisite that guarantees acoustic performance, the magnetic speaker structure is thinner in feasible being somebody's turn to do.
Claims (9)
1, a kind of thin speaker without conductive magnetic yoke, it is characterized in that: directly be provided with main magnet (2) in the bottom of basin frame (1), magnetic pole core (3) is set on main magnet (2), auxiliary magnet (4) is set on magnetic pole core (3), voice coil loudspeaker voice coil (5) be looped around main magnet (2), magnetic pole core (3) and auxiliary magnet (4) around.
2, according to claim 1 without the thin speaker of conductive magnetic yoke, it is characterized in that: main magnet (2) is identical with the structure of auxiliary magnet (4), polar repulsion.
3, according to claim 1 without the thin speaker of conductive magnetic yoke, it is characterized in that: combine closely with the bottom of basin frame (1) under the described main magnet (2).
4, according to claim 1 without the thin speaker of conductive magnetic yoke, it is characterized in that: combine closely between described main magnet (2) and the magnetic pole core (3), combine closely between described magnetic pole core (3) and the auxiliary magnet (4).
5, according to claim 1 without the thin speaker of conductive magnetic yoke, it is characterized in that: the centre bore of the outer wall of voice coil loudspeaker voice coil (5) and locating branch slice (6) is combined closely, and the middle part of the edge of described locating branch slice (6) and basin frame (1) interconnects.
6, according to claim 1 without the thin speaker of conductive magnetic yoke, it is characterized in that: the outer wall of voice coil loudspeaker voice coil (5) interconnects with the centre bore of the sound basin (7) of band ring, and the edge of sound basin (7) and basin frame (1) interconnect.
7, according to claim 1 without the thin speaker of conductive magnetic yoke, it is characterized in that: the outer wall of voice coil loudspeaker voice coil (5) is connected with the centre bore of locating branch slice (6), and the edge of described locating branch slice (6) is connected with the middle part of basin frame (1); The outer wall of voice coil loudspeaker voice coil (5) is connected with the centre bore of the sound basin (7) of being with ring simultaneously, and the edge of sound basin (7) is connected with the top of basin frame (1); Make voice coil loudspeaker voice coil (5) be suspended in magnet (2), magnetic pole core (3) and auxiliary magnet (4) around; Described sound basin (7) is arranged on the top of locating branch slice (6).
8, according to claim 1 without the thin speaker of conductive magnetic yoke, it is characterized in that: be provided with dust cover (8) at the top of voice coil loudspeaker voice coil (5).
9, according to claim 1 without the thin speaker of conductive magnetic yoke, it is characterized in that: the side at basin frame (1) is provided with terminal block (10), the lead-in wire of voice coil loudspeaker voice coil (5) is attached to the upper surface of sound basin (1), and, the lead-in wire of voice coil loudspeaker voice coil (5) and lead-out wire (9) interconnect, and the other end of lead-out wire (9) is connected with terminal block (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200402866U CN201216017Y (en) | 2008-07-02 | 2008-07-02 | Thin type loudspeaker without magnetic conductive yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200402866U CN201216017Y (en) | 2008-07-02 | 2008-07-02 | Thin type loudspeaker without magnetic conductive yoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201216017Y true CN201216017Y (en) | 2009-04-01 |
Family
ID=40521222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200402866U Expired - Lifetime CN201216017Y (en) | 2008-07-02 | 2008-07-02 | Thin type loudspeaker without magnetic conductive yoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201216017Y (en) |
-
2008
- 2008-07-02 CN CNU2008200402866U patent/CN201216017Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 214192 Xishan, Jiangsu, Beizhen Tin Tin Tin Road, No. eight, No. 228 Patentee after: WUXI JIEFU ELECTROACOUSTIC CO., LTD. Address before: 214192 Jiangsu Wuxi Xishan tin eight Wuxi Beizhen Geoff electroacoustic Co., Ltd. Patentee before: Jiefu Electroacoustic Co., Ltd., Wuxi |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090401 |