CN103974173A - High directivity loudspeaker of curved face - Google Patents
High directivity loudspeaker of curved face Download PDFInfo
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- CN103974173A CN103974173A CN201410221461.1A CN201410221461A CN103974173A CN 103974173 A CN103974173 A CN 103974173A CN 201410221461 A CN201410221461 A CN 201410221461A CN 103974173 A CN103974173 A CN 103974173A
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- basin
- sound basin
- voice coil
- sound
- curved surface
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Abstract
The invention relates to a high directivity loudspeaker of a curved face. The high directivity loudspeaker of the curved face comprises a basin frame with a basin-shaped cavity, a magnetic circuit structure, a positioning support chip and a sound basin; the high directivity loudspeaker of the curved face is characterized in that the sound basin is arranged above the positioning support chip, and the outer edge of the sound basin abuts against the top edge of the basin frame; the sound basin extends in the center direction from the outer edge, and the sound basin is firstly arched upward to form a sound basin folding ring, wherein the cross section of the folding ring is semicircular; the inner edge of the sound basin folding ring extends downward in an inclined mode in the center direction to form a sound basin body, and the sound basin body is concave type curved face; the inner edge of the sound basin body extends downward in the vertical direction to form a cylindrical sound basin vertical face; the bottom end of the sound basin vertical face is inserted into a sound coil, and the outer wall of the sound basin vertical face is closely combined with the inner wall of the sound coil; the bottom edge of the sound basin vertical face is arched upward in the center direction to form a sound basin dome in a closed arch shape. By means of the high directivity loudspeaker of the curved face, higher directivity is achieved, the loudspeaker can be made to radiate sound signals in more narrow beams in the designated direction, and sound pollution is reduced.
Description
Technical field
The invention belongs to acoustic-electric technical field, relate to a kind of dynamic speaker, specifically a kind of high directivity curved surface loud speaker.
Background technology
In prior art, the loud speaker being applied on the plate video equipment such as LCD, OLED generally adopts entirety to be plane, and sound basin is funnelform dynamic speaker.The loud speaker of this structure has feature simple in structure, easy for installation.But this loud speaker is installed to after panel TV, because its directive property is poor, the angle of acoustic irradiation is very wide, causes the kinsfolk who easily interferes with other and do not want to hear sound of television in domestic environment, causes sound pollution in various degree.
Summary of the invention
The object of the invention is to for above shortcomings in prior art, a kind of high directivity curved surface loud speaker is provided, its structure is ingenious, compact and reasonable, there is higher directive property, can impel loud speaker to assigned direction with narrower beam radiation voice signal, the people of the wave beam that is positioned at this angle can directly be received with ear, and the voice signal receiving the people of other locus a little less than, thereby reduce sound pollution.
According to technical scheme provided by the invention: high directivity curved surface loud speaker, comprises basin frame, magnetic structure, locating branch slice and the sound basin with basin shape chamber; Magnetic structure is arranged on basin frame, and magnetic structure comprises U-shaped conductive magnetic yoke and voice coil loudspeaker voice coil; Offer basin frame centre bore in the bottom centre of basin frame, U-shaped conductive magnetic yoke is closely inlaid in basin frame centre bore; Described locating branch slice is supported on basin frame, and locating branch slice center offers locating branch slice centre bore, and voice coil loudspeaker voice coil top is contained in locating branch slice centre bore, and the inward flange of voice coil loudspeaker voice coil outer wall and locating branch slice centre bore is combined closely; It is characterized in that: described sound basin is arranged on locating branch slice top, and the outer edge of sound basin is supported on the top sides of basin frame along upper; Sound basin is extended to center position by its outer edge, first upwards arches upward, and forms the sound basin ring of a section semicircular in shape; The inside edge of described sound basin ring, again to the oblique downward-extension of center position, forms a sound basin body, and described sound basin body is inner concave shape curved surface; The inside edge of described sound basin body, more vertically to downward-extension, forms the sound basin facade of a tubular; Insert in voice coil loudspeaker voice coil described sound basin facade lower end, and sound basin facade outer wall and voice-coil inwall are combined closely; The base of described sound basin facade, along upwards arching upward to center position, forms the sound basin dome of a closed arch again.
As a further improvement on the present invention, the top peak of described sound basin dome exceeds sound basin body minimum point.
As a further improvement on the present invention, described basin frame is rectangle, and described basin shape chamber is oblong, and described sound basin is arranged in basin shape chamber, and sound basin is also oblong.
As a further improvement on the present invention, the inner concave shape curved surface that stick up for middle low two described basin frame bottom, the inner concave shape curved surface that described sound basin body also sticks up for middle low two.
As a further improvement on the present invention, described Pen Jia bottom centre is provided with a cavity to lower recess, and described basin frame centre bore is positioned at the bottom of cavity, and described locating branch slice outer is supported on cavity edge.
As a further improvement on the present invention, described cavity is the truncated cone-shaped cavity that upper opening is large, bottom is little.
As a further improvement on the present invention, described magnetic structure comprises U-shaped conductive magnetic yoke, main magnet, magnetic pole core, secondary magnet and voice coil loudspeaker voice coil, main magnet, magnetic pole core and secondary magnet are contained in U-shaped conductive magnetic yoke, main magnet lower surface and U-shaped conductive magnetic yoke bottom interior surface are combined closely, the main magnet upper surface magnetic pole core of combining closely, the magnetic pole core upper surface secondary magnet of combining closely, voice coil loudspeaker voice coil is looped around around main magnet, magnetic pole core and secondary magnet, between the outer wall of voice-coil inwall and main magnet, magnetic pole core and secondary magnet, leave gap, between voice coil loudspeaker voice coil outer wall and U-shaped conductive magnetic yoke inwall, leave space.
As a further improvement on the present invention, described U-shaped conductive magnetic yoke bottom is provided with boss, and described main magnet lower surface is combined closely on boss, and main magnet lower surface peripheral part is unsettled.
As a further improvement on the present invention, described locating branch slice is wavy positioning support chip.
compared with prior art, major advantage is in the present invention:
(1) ingenious, the compact and reasonable of structure of the present invention, be set to inner concave shape curved surface He Yinpen center by sound basin body sound basin dome is set, make loud speaker there is higher directive property, can impel loud speaker to assigned direction with narrower beam radiation voice signal, the people of the wave beam that is positioned at this angle can directly be received with ear, and the voice signal receiving the people of other locus a little less than, thereby for user provides an audition space that has border, effectively reduce sound pollution.
(2) sound basin dome of the present invention also plays the effect of conventional loudspeakers dust cap, because the remainder of sound basin dome and sound basin is an entirety, has improved the rigidity of sound basin again, is conducive to improve tonequality; Due to the existence of sound basin facade, the bonded area of voice coil loudspeaker voice coil and sound basin is increased simultaneously, improved the assembly reliability of associated components, and then improved born power and the reliability of loud speaker.
Brief description of the drawings
Fig. 1 is that the master of the embodiment of the present invention looks cutaway view.
Fig. 2 is the enlarged diagram figure of A portion in Fig. 1.
Fig. 3 is the perspective view of the embodiment of the present invention.
Description of reference numerals: 1-basin frame, 1a-basin shape chamber, 1b-cavity, 2-U shape conductive magnetic yoke, the main magnet of 3-, 4-magnetic pole core, the secondary magnet of 5-, 6-voice coil loudspeaker voice coil, 7-sound basin, 7a-outer edge, 7b-sound basin ring, 7c-sound basin body, 7d-sound basin facade, 7e-sound basin dome, 8-locating branch slice.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in the figure, the high directivity curved surface loud speaker in embodiment is mainly made up of basin frame 1, U-shaped conductive magnetic yoke 2, main magnet 3, magnetic pole core 4, secondary magnet 5, voice coil loudspeaker voice coil 6, sound basin 7 and locating branch slice 8.
As shown in Fig. 1 ~ 3, basin frame 1 adopts plastics or metal material to make, and on basin frame 1, magnetic structure is installed; Described magnetic structure is mainly made up of U-shaped conductive magnetic yoke 2, main magnet 3, magnetic pole core 4, secondary magnet 5 and voice coil loudspeaker voice coil 6, offers basin frame 1 centre bore in the bottom centre of basin frame 1, and described U-shaped conductive magnetic yoke 2 is closely inlaid in basin frame 1 centre bore with interference fit; Main magnet 3, magnetic pole core 4 and secondary magnet 5 are contained in U-shaped conductive magnetic yoke 2, main magnet 3 lower surfaces and U-shaped conductive magnetic yoke 2 bottom interior surfaces are combined closely, the main magnet 3 upper surfaces magnetic pole core 4 of combining closely, the magnetic pole core 4 upper surfaces secondary magnet 5 of combining closely, voice coil loudspeaker voice coil 6 is looped around around main magnet 3, magnetic pole core 4 and secondary magnet 5, between the outer wall of voice coil loudspeaker voice coil 6 inwalls and main magnet 3, magnetic pole core 4 and secondary magnet 5, leave gap, between voice coil loudspeaker voice coil 6 outer walls and U-shaped conductive magnetic yoke 2 inwalls, leave space.
As shown in Fig. 1 ~ Fig. 3, described locating branch slice 8 is supported on basin frame 1, and locating branch slice 8 centers offer locating branch slice 8 centre bores, and voice coil loudspeaker voice coil 6 tops are contained in locating branch slice 8 centre bores, and the inward flange of voice coil loudspeaker voice coil 6 outer walls and locating branch slice 8 centre bores is combined closely.Locating branch slice 8 in the embodiment of the present invention is wavy positioning support chip 8, ensureing under the prerequisite of loudspeaker vibration compliance like this, improve the stability that voice coil loudspeaker voice coil 6 drives sound basin 7 axially to move up and down, make loud speaker also can not produce harmful transverse movement under high-power, improve the reliability of speaker operation, improved LF-response performance.
As shown in Fig. 1 ~ Fig. 3, described sound basin 7 is arranged on locating branch slice 8 tops, and the outer edge 7a of sound basin 7 is supported on the top sides of basin frame 1 along upper; Sound basin 7 is extended to center position by its outer edge 7a, first upwards arches upward, and forms the sound basin ring 7b of a section semicircular in shape; The inside edge of described sound basin ring 7b, again to the oblique downward-extension of center position, forms a sound basin body 7c, and described sound basin body 7c is inner concave shape curved surface; The inside edge of described sound basin body 7c, more vertically to downward-extension, forms the sound basin facade 7d of a tubular; Insert in voice coil loudspeaker voice coil 6 described sound basin facade 7d lower end, and sound basin facade 7d outer wall and voice coil loudspeaker voice coil 6 inwalls are combined closely; The base of described sound basin facade 7d, along upwards arching upward to center position, forms the sound basin dome 7e of a closed arch again.
The present invention is set to inner concave shape curved surface and sound basin dome 7e is set at sound basin 7 centers by sound basin body 7c, make loud speaker there is higher directive property, can impel loud speaker to assigned direction with narrower beam radiation voice signal, the people of the wave beam that is positioned at this angle can directly be received with ear, and the voice signal receiving the people of other locus a little less than, thereby for user provides an audition space that has border, effectively reduce sound pollution.
In addition, described sound basin dome 7e also plays the effect of conventional loudspeakers dust cap, because the remainder of sound basin dome 7e and sound basin 7 is an entirety, has improved the rigidity of sound basin 7 again, is conducive to improve tonequality; Due to the existence of sound basin facade 7d, voice coil loudspeaker voice coil 6 and the bonded area of sound basin 7 are increased simultaneously, improved the assembly reliability of associated components, and then improved born power and the reliability of loud speaker.
In the present invention, the top peak of described sound basin dome 7e exceeds sound basin body 7c minimum point, is conducive to like this enhancing of directive property, and the top peak higher (being that arch is steeper) of sound basin dome 7e, is more beneficial to raising directive property.
As shown in Fig. 1 ~ Fig. 3, the basin frame 1 in the embodiment of the present invention is rectangle, and described basin shape chamber 1a is oblong, and described sound basin 7 is arranged in basin shape chamber 1a, and sound basin 7 is also oblong.Described basin frame 1 bottom is the inner concave shape curved surface that stick up at middle low two, the inner concave shape curved surface that described sound basin body 7c also sticks up for middle low two.In addition, described Pen Jia 1 bottom centre is provided with a cavity 1b to lower recess, and described basin frame 1 centre bore is positioned at the bottom of cavity 1b, and described locating branch slice 8 outers are supported on cavity 1b edge.Preferably, described cavity 1b is the truncated cone-shaped cavity 1b that upper opening is large, bottom is little.
As shown in Fig. 1 ~ Fig. 3, in the embodiment of the present invention, described U-shaped conductive magnetic yoke 2 bottoms are provided with boss, and described main magnet 3 lower surfaces are combined closely on boss, and main magnet 3 lower surface peripheral parts are unsettled.
Claims (9)
1. high directivity curved surface loud speaker, comprises basin frame (1), magnetic structure, locating branch slice (8) and the sound basin (7) with basin shape chamber (1a); It is upper that magnetic structure is arranged on basin frame (1), and magnetic structure comprises U-shaped conductive magnetic yoke (2) and voice coil loudspeaker voice coil (6); Offer basin frame (1) centre bore in the bottom centre of basin frame (1), U-shaped conductive magnetic yoke (2) is closely inlaid in basin frame (1) centre bore; Described locating branch slice (8) is supported on basin frame (1), locating branch slice (8) center offers locating branch slice (8) centre bore, voice coil loudspeaker voice coil (6) top is contained in locating branch slice (8) centre bore, and the inward flange of voice coil loudspeaker voice coil (6) outer wall and locating branch slice (8) centre bore is combined closely; It is characterized in that: described sound basin (7) is arranged on locating branch slice (8) top, and the top sides that the outer edge (7a) of sound basin (7) is supported on basin frame (1) is along upper; Sound basin (7) is extended to center position by its outer edge (7a), first upwards arches upward, and forms the sound basin ring (7b) of a section semicircular in shape; The inside edge of described sound basin ring (7b), again to the oblique downward-extension of center position, forms a sound basin body (7c), and described sound basin body (7c) is inner concave shape curved surface; The inside edge of described sound basin body (7c), more vertically to downward-extension, forms the sound basin facade (7d) of a tubular; Insert in voice coil loudspeaker voice coil (6) described sound basin facade (7d) lower end, and sound basin facade (7d) outer wall and voice coil loudspeaker voice coil (6) inwall are combined closely; The base of described sound basin facade (7d), along upwards arching upward to center position, forms the sound basin dome (7e) of a closed arch again.
2. high directivity curved surface loud speaker as claimed in claim 1, is characterized in that: the top peak of described sound basin dome (7e) exceeds sound basin body (7c) minimum point.
3. high directivity curved surface loud speaker as claimed in claim 1, is characterized in that: described basin frame (1) is rectangle, and described basin shape chamber (1a) is oblong, and described sound basin (7) is arranged in basin shape chamber (1a), and sound basin (7) is also oblong.
4. high directivity curved surface loud speaker as claimed in claim 3, is characterized in that: the inner concave shape curved surface that stick up for middle low two described basin frame (1) bottom, the inner concave shape curved surface that described sound basin body (7c) also sticks up for middle low two.
5. high directivity curved surface loud speaker as claimed in claim 1, it is characterized in that: described basin frame (1) bottom centre is provided with a cavity to lower recess (1b), described basin frame (1) centre bore is positioned at the bottom of cavity (1b), and described locating branch slice (8) outer is supported on cavity (1b) edge.
6. high directivity curved surface loud speaker as claimed in claim 5, is characterized in that: described cavity (1b) is the truncated cone-shaped cavity (1b) that upper opening is large, bottom is little.
7. high directivity curved surface loud speaker as claimed in claim 1, it is characterized in that: described magnetic structure comprises U-shaped conductive magnetic yoke (2), main magnet (3), magnetic pole core (4), secondary magnet (5) and voice coil loudspeaker voice coil (6), main magnet (3), magnetic pole core (4) and secondary magnet (5) are contained in U-shaped conductive magnetic yoke (2), main magnet (3) lower surface and U-shaped conductive magnetic yoke (2) bottom interior surface are combined closely, main magnet (3) the upper surface magnetic pole core (4) of combining closely, magnetic pole core (4) the upper surface secondary magnet (5) of combining closely, voice coil loudspeaker voice coil (6) is looped around main magnet (3), magnetic pole core (4) and secondary magnet (5) are around, voice coil loudspeaker voice coil (6) inwall and main magnet (3), between the outer wall of magnetic pole core (4) and secondary magnet (5), leave gap, between voice coil loudspeaker voice coil (6) outer wall and U-shaped conductive magnetic yoke (2) inwall, leave space.
8. high directivity curved surface loud speaker as claimed in claim 7, is characterized in that: described U-shaped conductive magnetic yoke (2) bottom is provided with boss, and described main magnet (3) lower surface is combined closely on boss, and main magnet (3) lower surface peripheral part is unsettled.
9. high directivity curved surface loud speaker as claimed in claim 1, is characterized in that: described locating branch slice (8) is wavy positioning support chip (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410221461.1A CN103974173A (en) | 2014-05-23 | 2014-05-23 | High directivity loudspeaker of curved face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410221461.1A CN103974173A (en) | 2014-05-23 | 2014-05-23 | High directivity loudspeaker of curved face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103974173A true CN103974173A (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410221461.1A Pending CN103974173A (en) | 2014-05-23 | 2014-05-23 | High directivity loudspeaker of curved face |
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| Country | Link |
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| CN (1) | CN103974173A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862476A (en) * | 2019-01-29 | 2019-06-07 | 广州市金歌演艺设备有限公司 | On a kind of stem plus the neodymium magnetic speaker structure of secondary magnetic |
| CN110493696A (en) * | 2019-08-23 | 2019-11-22 | 朱虹斐 | Directional loudspeaker |
| WO2022048692A1 (en) * | 2020-09-02 | 2022-03-10 | 苏州上声电子股份有限公司 | Dual-cone small speaker |
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| CN2798477Y (en) * | 2004-08-24 | 2006-07-19 | 闫文革 | Concurrent coaxical loudspeaker |
| CN101316453A (en) * | 2007-05-29 | 2008-12-03 | 上海先锋电声器材有限公司 | Loudspeaker device |
| CN101330772A (en) * | 2008-07-02 | 2008-12-24 | 无锡杰夫电声有限公司 | Thin type loudspeaker without magnetic conductive yoke |
| CN201290172Y (en) * | 2008-09-26 | 2009-08-12 | 国光电器股份有限公司 | Sound basin for loudspeaker, loudspeaker using the sound basin, and electronic product using the loudspeaker |
| CN101742385A (en) * | 2009-12-24 | 2010-06-16 | 无锡杰夫电声有限公司 | Thin type electrodynamic loudspeaker |
| CN101931840A (en) * | 2010-09-30 | 2010-12-29 | 无锡杰夫电声有限公司 | Thin type speaker with wavy positioning support chip |
| CN203840539U (en) * | 2014-05-23 | 2014-09-17 | 无锡杰夫电声有限公司 | High-directivity curved-surface loudspeaker |
-
2014
- 2014-05-23 CN CN201410221461.1A patent/CN103974173A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2798477Y (en) * | 2004-08-24 | 2006-07-19 | 闫文革 | Concurrent coaxical loudspeaker |
| CN101316453A (en) * | 2007-05-29 | 2008-12-03 | 上海先锋电声器材有限公司 | Loudspeaker device |
| CN101330772A (en) * | 2008-07-02 | 2008-12-24 | 无锡杰夫电声有限公司 | Thin type loudspeaker without magnetic conductive yoke |
| CN201290172Y (en) * | 2008-09-26 | 2009-08-12 | 国光电器股份有限公司 | Sound basin for loudspeaker, loudspeaker using the sound basin, and electronic product using the loudspeaker |
| CN101742385A (en) * | 2009-12-24 | 2010-06-16 | 无锡杰夫电声有限公司 | Thin type electrodynamic loudspeaker |
| CN101931840A (en) * | 2010-09-30 | 2010-12-29 | 无锡杰夫电声有限公司 | Thin type speaker with wavy positioning support chip |
| CN203840539U (en) * | 2014-05-23 | 2014-09-17 | 无锡杰夫电声有限公司 | High-directivity curved-surface loudspeaker |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862476A (en) * | 2019-01-29 | 2019-06-07 | 广州市金歌演艺设备有限公司 | On a kind of stem plus the neodymium magnetic speaker structure of secondary magnetic |
| CN110493696A (en) * | 2019-08-23 | 2019-11-22 | 朱虹斐 | Directional loudspeaker |
| CN110493696B (en) * | 2019-08-23 | 2020-12-25 | 平阳县然亿贸易有限公司 | Directional loudspeaker |
| WO2022048692A1 (en) * | 2020-09-02 | 2022-03-10 | 苏州上声电子股份有限公司 | Dual-cone small speaker |
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Application publication date: 20140806 |
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