CN203279166U - Thin type loudspeaker with low degree of distortion - Google Patents
Thin type loudspeaker with low degree of distortion Download PDFInfo
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- CN203279166U CN203279166U CN 201320323613 CN201320323613U CN203279166U CN 203279166 U CN203279166 U CN 203279166U CN 201320323613 CN201320323613 CN 201320323613 CN 201320323613 U CN201320323613 U CN 201320323613U CN 203279166 U CN203279166 U CN 203279166U
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- voice coil
- curved surface
- basin
- magnet
- magnetic pole
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Abstract
The utility model relates to a thin type loudspeaker with low degree of distortion, comprising a corn stand with a basin-shaped cavity, a magnetic circuit structure installed within the corn stand, corns and a positioning support sheets. The corn consists of a corn corrugated ring and a corn body. The thin type loudspeaker with low degree of distortion is characterized in that the rim of the corn body extends downwards and towards the center of the corn body in an oblique manner, which form a funnel-shaped concave curved surface. The bending direction of the funnel-shaped curved surface is upward; the lowest rim of the funnel-shaped curved surface extends upwards and towards the center direction in an oblique manner to form a domelike curved surface which heaves. The center of the domelike curved surface is the center of the corn body. The thin type loudspeaker with low degree of distortion replaces the conventional funnel-shaped corn with a novel corn. The domelike curved surface which heaves in the corn body can effectively improve sound quality of medium-high frequency. Besides, an auxiliary magnet and an auxiliary magnetic pole core are added in the magnetic circuit structure, which can further improve bass response characteristics of the loudspeaker, reduce nonlinear distortion, and improve tone quality and reliability of the loudspeaker.
Description
Technical field
The utility model relates to a kind of loud speaker, and a kind of powerful low distortion thin type electrodynamic loudspeaker specifically belongs to the electroacoustic techniques field.
Background technology
In prior art, the loud speaker that is applied to the application on plate video equipment generally adopts infundibulate sound basin to coordinate the structure of locating branch slice, center at infundibulate sound basin offers centre bore, the locating branch slice that offers equally centre bore is arranged on the below of sound basin, voice coil loudspeaker voice coil penetrates the centre bore of sound basin and locating branch slice, the center bore inner wall of the outer wall of voice coil loudspeaker voice coil and sound basin and locating branch slice is combined closely, thereby forms the vibrational system of loud speaker.And conventional magnetic structure is generally with the magnet centering, be U-shaped conductive magnetic yoke (also claiming U iron) around a section around magnet, voice coil loudspeaker voice coil is placed between magnet and conductive magnetic yoke, when voice coil loudspeaker voice coil penetrates sound basin and locating branch slice, the voice coil loudspeaker voice coil bottom is suspended in the magnetic gap of U iron inwall and magnet and the formation of magnetic pole core outer wall, after making the loud speaker energising, voice coil loudspeaker voice coil is up-down vibration in magnetic gap, and then promotes sound basin vibration radiation sound.The defectives such as the loud speaker of this kind structure exists Oscillation Amplitude little, and nonlinear distortion is large, and recovery capability is poor, and low frequency tonequality is bad.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide that a kind of structure is ingenious, the thin speaker of the low distortion of compact and reasonable, this loud speaker can improve the LF-response characteristic effectively, reduces nonlinear distortion, and then improves the tonequality Performance And Reliability of loud speaker.
The technical scheme that provides according to the utility model: the thin speaker of low distortion comprises basin frame with basin shape chamber, is arranged on magnetic structure, sound basin and locating branch slice in the basin frame; Described magnetic structure comprises U iron, magnet, magnetic pole core and voice coil loudspeaker voice coil, U iron and basin frame are combined closely, magnet and magnetic pole core are contained in U iron, magnet lower surface and U iron bottom interior surface are combined closely, the magnet upper surface magnetic pole core of combining closely, voice coil loudspeaker voice coil is looped around around magnet and magnetic pole core, and the outer wall of voice-coil inwall and magnet and magnetic pole core leaves the gap, and voice coil loudspeaker voice coil outer wall and U iron inwall leave the space; Described locating branch slice is arranged on the voice coil loudspeaker voice coil periphery, and edge, locating branch slice surrounding is supported on the basin frame, locating branch slice top installation sound basin; Described sound basin mainly is comprised of sound basin ring and sound basin body, and the edge of sound basin ring is supported on basin frame edge, and sound basin body center hole wall and voice coil loudspeaker voice coil outer wall are combined closely; It is characterized in that: described sound basin body edges is the oblique downward-extension of heart direction wherein, at first forms one to the infundibulate curved surface of lower recess, and the bending direction of this infundibulate curved surface upwards; Described infundibulate curved surface edge bottom more wherein heart direction extend obliquely, form a upwards dome-shaped curved surface of protuberance, the center of described dome-shaped curved surface is sound basin body centre bore.
As further improvement of the utility model, the body intersection between described sound basin body infundibulate curved surface and dome-shaped curved surface downward orthographic projection zone is greater than downward orthographic projection zone, U iron top.
As further improvement of the utility model, described magnetic structure also comprises secondary magnet and secondary magnetic pole core, described secondary magnet and secondary magnetic pole core are arranged in voice coil loudspeaker voice coil, secondary magnet lower surface and magnetic pole core upper surface are combined closely, the secondary magnet upper surface secondary magnetic pole core of combining closely leaves the gap between the outer wall of secondary magnet and secondary magnetic pole core and voice-coil inwall.
As further improvement of the utility model, described locating branch slice edge heart direction fluctuation wherein extends, at first form a waveform curved surface, waveform curved surface innermost circle is a downward concave surface, and the inside edge of this concave surface is over against the body intersection between upper phonetic aspect of a dialect basin body infundibulate curved surface and dome-shaped curved surface; The inside edge of described waveform curved surface innermost circle concave surface is heart direction horizontal-extending wherein, forms a plate plane of an annular, and the center of a plate plane is the locating branch slice mesopore, and the inwall of locating branch slice mesopore and the outer wall of voice coil loudspeaker voice coil are combined closely.
As further improvement of the utility model, described U iron bottom interior surface is provided with the boss that raises up, and described magnet is combined closely on this boss.
As further improvement of the utility model, described basin frame bottom centre offers basin frame mesopore, very tight close being inlaid in basin frame mesopore of U, and U iron bottom outer surface is concordant with basin frame bottom outer surface.
As further improvement of the utility model, described basin frame is provided with several along circumferential uniform basin frame side opening.
As further improvement of the utility model, described voice coil loudspeaker voice coil top is provided with dust cap.
The utility model compared with prior art, advantage is:The utility model structure is ingenious, compact and reasonable, adopts a kind of novel sound basin of brand-new design to substitute traditional infundibulate sound basin, and the dome-shaped curved surface that upwards swells in sound basin body can promote medium-high frequency tonequality effectively; Increase in magnetic structure in addition and be provided with secondary magnet and secondary magnetic pole core, can further improve the LF-response characteristic of loud speaker, reduce nonlinear distortion, improve the tonequality Performance And Reliability of loud speaker.
Description of drawings
Fig. 1 is the structure cutaway view of the utility model preferred embodiment.
Fig. 2 is the stereochemical structure exploded view of the utility model preferred embodiment.
Fig. 3 is the structure cutaway view of the utility model sound basin.
Fig. 4 is the perspective view of the utility model sound basin.
Description of reference numerals: 1-basin frame, 1a-basin frame mesopore, 1b-basin frame side opening, 2-U iron, 2a-boss, 3-magnet, 4-magnetic pole core, 5-secondary magnet, 6-secondary magnetic pole core, 7-sound basin, 7a-sound basin body, 7a.1-infundibulate curved surface, 7a.2-dome-shaped curved surface, 7a.3-body intersection, 7b-sound basin ring, 8-locating branch slice, 8a-waveform curved surface, a 8b-plate plane, 8c-locating branch slice mesopore, 9-voice coil loudspeaker voice coil, 10-dust cap.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure, the thin speaker of the low distortion in embodiment mainly is comprised of parts such as basin frame 1, U iron 2, magnet 3, magnetic pole core 4, secondary magnet 5, secondary magnetic pole core 6, sound basin 7, locating branch slice 8, voice coil loudspeaker voice coil 9 and dust caps 10, described basin frame has basin shape chamber, and magnetic structure, sound basin and locating branch slice are installed in the basin frame.
As Fig. 1 ~ shown in Figure 4, in the utility model, described magnetic structure mainly is comprised of U iron 2, magnet 3, magnetic pole core 4, secondary magnet 5, secondary magnetic pole core 6 and voice coil loudspeaker voice coil 9, U iron 2 is combined closely with basin frame 1, magnet 3 and magnetic pole core 4 are contained in U iron 2, magnet 3 lower surfaces and U iron 2 bottom interior surfaces are combined closely, the magnet 3 upper surfaces magnetic pole core 4 of combining closely, voice coil loudspeaker voice coil 9 is looped around around magnet 3 and magnetic pole core 4, the outer wall of voice coil loudspeaker voice coil 9 inwalls and magnet 3 and magnetic pole core 4 leaves the gap, and voice coil loudspeaker voice coil 9 outer walls and U iron 2 inwalls leave the space; Described secondary magnet 5 and secondary magnetic pole core 6 are arranged in voice coil loudspeaker voice coil 9, and secondary magnet 5 lower surfaces and magnetic pole core 4 upper surfaces are combined closely, and the secondary magnet 5 upper surfaces secondary magnetic pole core 6 of combining closely leaves the gap between the outer wall of secondary magnet 5 and secondary magnetic pole core 6 and voice coil loudspeaker voice coil 9 inwalls.In this magnetic structure, put secondary magnet 5 and secondary magnetic pole core 6 by setting up, can further improve the LF-response characteristic of loud speaker, reduce nonlinear distortion, improve the tonequality Performance And Reliability of loud speaker.
As Fig. 1 ~ shown in Figure 4, described locating branch slice 8 is arranged on voice coil loudspeaker voice coil 9 peripheries, and locating branch slice 8 surroundings are along being supported on basin frame 1, and sound basins 7 are installed in locating branch slice 8 tops.In the utility model, described locating branch slice 8 edges heart direction fluctuation wherein extend, at first form a waveform curved surface 8a, waveform curved surface 8a innermost circle is a downward concave surface, and the inside edge of this concave surface is over against the body intersection 7a.3 between upper phonetic aspect of a dialect basin body 7a infundibulate curved surface 7a.1 and dome-shaped curved surface 7a.2; The inside edge of described waveform curved surface 8a innermost circle concave surface is heart direction horizontal-extending wherein, forms a plate plane 8b of an annular, and the center of a plate plane 8b is locating branch slice mesopore 8c, and the inwall of locating branch slice mesopore 8c and the outer wall of voice coil loudspeaker voice coil 9 are combined closely.Such locating branch slice 8 structures can be conducive to improve the tonequality of loud speaker, locating branch slice 8 touching sound basin 7 bottoms in the time of avoiding speaker operation again.
As Fig. 1 ~ shown in Figure 4, described sound basin 7 mainly is comprised of sound basin ring 7b and sound basin body 7a, and the edge of sound basin ring 7b is supported on basin frame 1 edge, and sound basin body 7a center hole wall and voice coil loudspeaker voice coil 9 outer walls are combined closely; In the utility model, described sound basin body 7a edge is the oblique downward-extension of heart direction wherein, at first forms one to the infundibulate curved surface 7a.1 of lower recess, and the bending direction of this infundibulate curved surface 7a.1 upwards; Described infundibulate curved surface 7a.1 edge bottom more wherein heart direction extend obliquely, form a upwards dome-shaped curved surface 7a.2 of protuberance, the center of described dome-shaped curved surface 7a.2 is sound basin body 7a centre bore.The dome-shaped curved surface 7a.2 that upwards swells in described sound basin body 7a can promote medium-high frequency tonequality effectively.In addition, the downward orthographic projection zone of the body intersection 7a.3 between described sound basin body 7a infundibulate curved surface 7a.1 and dome-shaped curved surface 7a.2 is greater than downward orthographic projection zone, U iron 2 tops.
As shown in Figure 1, described basin frame 1 is provided with several along circumferential uniform basin frame side opening 1b, and in the time of can avoiding speaker operation, air-flow hinders sound basin 7 and the up-down vibration of locating branch slice 8 in basin frame 1.Described U iron 2 bottom interior surfaces are provided with the boss 2a that raises up, and described magnet 3 is combined closely on this boss 2a.Described basin frame 1 bottom centre offers basin frame mesopore 1a, and U iron 2 closely is inlaid in basin frame mesopore 1a, and U iron 2 bottom outer surfaces are concordant with basin frame 1 bottom outer surface.In addition, described voice coil loudspeaker voice coil 9 tops are provided with dust cap 10.
Claims (8)
1. the thin speaker of low distortion comprises basin frame (1) with basin shape chamber, is arranged on magnetic structure, sound basin (7) and locating branch slice (8) in basin frame (1); Described magnetic structure comprises U iron (2), magnet (3), magnetic pole core (4) and voice coil loudspeaker voice coil (9), U iron (2) is combined closely with basin frame (1), magnet (3) and magnetic pole core (4) are contained in U iron (2), magnet (3) lower surface and U iron (2) bottom interior surface are combined closely, magnet (3) the upper surface magnetic pole core (4) of combining closely, voice coil loudspeaker voice coil (9) is looped around magnet (3) and magnetic pole core (4) on every side, the outer wall of voice coil loudspeaker voice coil (9) inwall and magnet (3) and magnetic pole core (4) leaves the gap, and voice coil loudspeaker voice coil (9) outer wall and U iron (2) inwall leave the space; Described locating branch slice (8) is arranged on voice coil loudspeaker voice coil (9) periphery, and edge, locating branch slice (8) surrounding is supported on basin frame (1), locating branch slice (8) top installation sound basin (7); Described sound basin (7) mainly is comprised of sound basin ring (7b) and sound basin body (7a), and the edge of sound basin ring (7b) is supported on basin frame (1) edge, and sound basin body (7a) center hole wall and voice coil loudspeaker voice coil (9) outer wall are combined closely; It is characterized in that: described sound basin body (7a) edge is the oblique downward-extension of heart direction wherein, at first forms one to the infundibulate curved surface (7a.1) of lower recess, and the bending direction of this infundibulate curved surface (7a.1) upwards; Described infundibulate curved surface (7a.1) edge bottom more wherein heart direction extend obliquely, form a upwards dome-shaped curved surface (7a.2) of protuberance, the center of described dome-shaped curved surface (7a.2) is sound basin body (7a) centre bore.
2. the thin speaker of low distortion as claimed in claim 1 is characterized in that: the body intersection (7a.3) between described sound basin body (7a) infundibulate curved surface (7a.1) and dome-shaped curved surface (7a.2) downward orthographic projection zone is greater than downward orthographic projection zone, U iron (2) top.
3. the thin speaker of low distortion as claimed in claim 1, it is characterized in that: described magnetic structure also comprises secondary magnet (5) and secondary magnetic pole core (6), described secondary magnet (5) and secondary magnetic pole core (6) are arranged in voice coil loudspeaker voice coil (9), secondary magnet (5) lower surface and magnetic pole core (4) upper surface are combined closely, secondary magnet (5) the upper surface secondary magnetic pole core (6) of combining closely leaves the gap between the outer wall of secondary magnet (5) and secondary magnetic pole core (6) and voice coil loudspeaker voice coil (9) inwall.
4. the thin speaker of low distortion as claimed in claim 1, it is characterized in that: the heart direction fluctuation extension wherein of described locating branch slice (8) edge, at first form a waveform curved surface (8a), waveform curved surface (8a) innermost circle is a downward concave surface, and the inside edge of this concave surface is over against the body intersection (7a.3) between upper phonetic aspect of a dialect basin body (7a) infundibulate curved surface (7a.1) and dome-shaped curved surface (7a.2); The inside edge of described waveform curved surface (8a) innermost circle concave surface is heart direction horizontal-extending wherein, form a plate plane (8b) of an annular, the center of propping up plate plane (8b) is locating branch slice mesopore (8c), and the outer wall of the inwall of locating branch slice mesopore (8c) and voice coil loudspeaker voice coil (9) is combined closely.
5. the thin speaker of low distortion as claimed in claim 1, it is characterized in that: described U iron (2) bottom interior surface is provided with the boss (2a) that raises up, and described magnet (3) is combined closely on this boss (2a).
6. the thin speaker of low distortion as claimed in claim 1, it is characterized in that: described basin frame (1) bottom centre offers basin frame mesopore (1a), U iron (2) closely is inlaid in basin frame mesopore (1a), and U iron (2) bottom outer surface is concordant with basin frame (1) bottom outer surface.
7. the thin speaker of low distortion as claimed in claim 1 is characterized in that: described basin frame (1) is provided with several along circumferential uniform basin frame side opening (1b).
8. the thin speaker of low distortion as claimed in claim 1 is characterized in that: described voice coil loudspeaker voice coil (9) top is provided with dust cap (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320323613 CN203279166U (en) | 2013-06-06 | 2013-06-06 | Thin type loudspeaker with low degree of distortion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320323613 CN203279166U (en) | 2013-06-06 | 2013-06-06 | Thin type loudspeaker with low degree of distortion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203279166U true CN203279166U (en) | 2013-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320323613 Withdrawn - After Issue CN203279166U (en) | 2013-06-06 | 2013-06-06 | Thin type loudspeaker with low degree of distortion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203279166U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260119A (en) * | 2013-06-06 | 2013-08-21 | 无锡杰夫电声有限公司 | Thin type speaker with low distortion degree |
-
2013
- 2013-06-06 CN CN 201320323613 patent/CN203279166U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260119A (en) * | 2013-06-06 | 2013-08-21 | 无锡杰夫电声有限公司 | Thin type speaker with low distortion degree |
| CN103260119B (en) * | 2013-06-06 | 2017-03-15 | 无锡杰夫电声股份有限公司 | The thin speaker of low distortion |
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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 eight Wuxi, Beizhen, Xishan District, Jiangsu Patentee before: Jiefu Electroacoustic Co., Ltd., Wuxi |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |