CN201290172Y

CN201290172Y - Sound basin for loudspeaker, loudspeaker using the sound basin, and electronic product using the loudspeaker

Info

Publication number: CN201290172Y
Application number: CNU2008202011212U
Authority: CN
Inventors: 谢守华
Original assignee: GUANGZHOU GUOGUANG ELECTRIC CO Ltd; Guoguang Electric Co Ltd
Current assignee: GUANGZHOU GUOGUANG ELECTRIC CO Ltd; Guoguang Electric Co Ltd
Priority date: 2008-09-26
Filing date: 2008-09-26
Publication date: 2009-08-12
Anticipated expiration: 2018-09-26

Abstract

The utility model provides a cone for a loud-speaker, wherein the bottom contour of the cone is round, the contour of the top of the cone is one of rounded rectangle, oval and runway shape, cone surface is gradually changed to the top of the cone by regulating curvature and space length of loop curve of the cone section; four transversal sectional planes of the cone are cone sections of loop curve, the curved surface of the cone is a smoothed curved surface without arris and mutation of curvature, and four longitudinal sectional planes of the cone is arc cone sections. The loud-speaker comprises: a cone frame combined with a magnetic circuit, a non-axisymmetric cone combined with the cone frame, a voice coil combined with the non-axisymmetric cone and which is collocated in magnetic gap of the magnetic circuit. An electronic apparatus at least comprises: the loud-speaker and a amplifying circuit of signal input into the loud-speaker. The cone of the utility model has beneficial effects for enhancing intensity of the cone, greatly improving effective dynamic range of loud-speaker voice output and enhancing playback quality of music.

Description

Loud speaker with the sound basin, use this sound basin loud speaker, use the electronic product of this loud speaker

Technical field

The utility model belongs to the electroacoustic industry, particularly a kind of loudspeaker cone, use this sound basin loud speaker, use the electronic product of this loud speaker.

Background technology

The sound basin of conventional loud speaker is an axial symmetry sound basin, and the outline line up and down of a need loud speaker and bus can form sound basin cone and be used for radiation, and this structure is made easily, and very perfect empirical data and application mode are arranged, and is the development foundation of loud speaker.

Along with electronic device to thin, narrow direction develops, the radiation sound basin of part loud speaker is also towards nonaxisymmetrical structural evolution, for example: ellipse sound basin, runway shape sound basin, square sound basin etc., use square, the sound basin of runway shape is as radiating surface, be in order to improve the loud speaker effective radiating area as much as possible, in Figure 15, because the outline line of sound basin is made up of straight line and circular arc, corresponding line curvature difference, and there is the transition of curvature, when the mesopore of cone is circle, in match sound basin cone curved surface, will form non-along sliding structure, Figure 16 is the section of a node of the long axis direction of the direct fitting surface of sound basin, its radiating surface is smooth geometry, and such structure sound basin can cause loud speaker intermediate frequency paddy, high frequency attenuation, particular resonance and export different sound, double-tone, thus cause loud speaker acoustical behavior difference and music playback of poor quality.

Summary of the invention

The utility model provide a kind of loud speaker with the sound basin, use this sound basin loud speaker, use the electronic product of this loud speaker, can greatly improve the effective dynamic range of loudspeaker sound output and improve the quality of music playback.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of loud speaker sound basin, the profile of the bottom of sound basin is circular, the profile at sound basin top is a kind of among round rectangle, ellipse, the runway shape, by adjusting the loop curve curvature and the spacing in sound basin cross section, makes sound pelvic curvature face progressively carry out the transition to sound basin top from the sound basin bottom part; The sound basin cross section that four horizontal sections of sound basin are the loop curve shape, sound pelvic curvature face are along sliding curved surface, do not have the sudden change of corner angle and curvature of curved surface, the sound basin cross section that four longitudinal profiles of sound basin are circular arc.

A kind of loud speaker, it comprises: the basin frame that combines with magnetic circuit; The aforesaid non-axial symmetry sound basin that combines with described basin frame; Combine with described non-axial symmetry sound basin and part is configured in voice coil loudspeaker voice coil in the magnetic gap of magnetic circuit.

A kind of electronic equipment comprises at least: the amplifying circuit of the signal in aforesaid loud speaker, the described loud speaker that is transfused to.

The beneficial effects of the utility model are: can improve the intensity of sound basin, greatly improve the quality of the effective dynamic range and the raising music playback of loudspeaker sound output.

Description of drawings

In conjunction with the accompanying drawings, the utility model structure is described further.

Fig. 1 is a side structure schematic diagram of the present utility model.

Fig. 2 is A-A vertical section schematic diagram of Fig. 1.

Fig. 3 is B-B vertical section schematic diagram of Fig. 1.

Fig. 4 is C-C vertical section schematic diagram of Fig. 1.

Fig. 5 is D-D vertical section schematic diagram of Fig. 1.

Fig. 6 is a Facad structure schematic diagram of the present utility model.

Fig. 7 is E-E vertical section schematic diagram of Fig. 6.

Fig. 8 is F-F vertical section schematic diagram of Fig. 6.

Fig. 9 is G-G vertical section schematic diagram of Fig. 6.

Figure 10 is L-L vertical section schematic diagram of Fig. 6.

Figure 11 is a loud speaker generalized section of the present utility model.

Figure 12 is an electronic product schematic appearance of the present utility model.

Figure 13 is the frequency response curve of conventional non-axial symmetry loud speaker.

Figure 14 is the frequency response curve of the utility model loud speaker.

The conventional non-axial symmetry sound basin front schematic view of Figure 15.

Figure 16 is the M-M vertical section schematic diagram of Figure 15.

In the drawings, 1. sound basin cross section, 2. sound basin cross section, 3. sound basin cross section, 4. sound basin cross section, 5. sound basin bottom part, 6. sound basin top, 7. sound pelvic curvature face, 8. sound basin cross section, 9. sound basin cross section, 10. sound basin cross section, 11. sound basin cross sections, 12. non-axial symmetry sound basin, 13. voice coil loudspeaker voice coils, 14. basin framves, 15. magnetic circuit systems, 16. front plate, 17.T iron, 18. magnet, 19. loud speakers, 20. shell, 21. amplifying circuits, 22. electronic products.

Embodiment

In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, the sound

basin cross section

1,2,3,4 that four horizontal sections of non-axial symmetry sound basin are the loop curve shape.

In Fig. 6, the sound pelvic curvature face 7 in non-axial symmetry sound basin front is along sliding curved surface, does not have the sudden change of corner angle and curvature; The profile at sound basin top 6 is the round rectangle profile, the profile of sound basin bottom part 5 is a circular contour, can make sound pelvic curvature face 7 progressively carry out the transition to the round rectangle profile at sound basin top 6 from the circular contour of sound basin bottom part 5 by loop curve curvature and the spacing of adjusting sound

basin cross section

1,2,3,4;

More than, just to sound basin top 6 for the structure of round rectangle profile is illustrated, but be not limited thereto, the profile at sound basin top 6 also can be ellipse or runway shape.

In Fig. 7, Fig. 8, Fig. 9, Figure 10, the sound

basin cross section

8,9,10,11 that four longitudinal profiles of non-axial symmetry sound basin are respectively circular arc;

In Figure 11, front plate 16, T iron 17 and be clipped in the magnet that had been magnetized 18 between the above two, structure magnetic circuit 15, be bonded with basin frame 14 on the front plate 16 of magnetic circuit 15, the bottom 5 of aforesaid non-axial symmetry sound basin 12 is bondd to the periphery of voice coil loudspeaker voice coil 13, sound basin top 6 is bonded on the periphery of basin frame 14;

More than, the loud speaker that just has the magnetic circuit 15 of external magnetic type is illustrated, but is not limited thereto, and also non-axial symmetry sound basin 12 can be applied to the loud speaker of internal magnetic type magnetic circuit.

By the non-axial symmetry voice basin loudspeaker of above structure, can increase the bulk strength of sound pelvic curvature face, reduce the medium-high frequency distortion of loud speaker, the resonance of elimination sound basin cone.

In Figure 12, loud speaker 19 of the present utility model is encased in the shell 20 of electronic product 22, the speaker system of formation, this electronic product 22 comprises at least: the amplifying circuit 21 of the signal of telecommunication of loud speaker 19, the loud speaker 19 that is transfused to.

Test the frequency response curve that contrasts loud speaker, test condition below by two actual samples: except that sound basin difference, all the other loudspeaker assemblies are all identical, can illustrate that the utility model loud speaker improves the effective dynamic range of loudspeaker sound output.

Frequency response curve among Figure 13 is the frequency response curve of conventional non-axial symmetry voice basin loudspeaker, curve among Figure 14 is the frequency response curve of the utility model loud speaker, by contrast as can be seen, the integrated curved changes in amplitude of Figure 14 than Figure 13 little 6dB, greatly improve the effective dynamic range of unit output, and the extension of the HFS of Figure 14 frequency response curve the former is wide than Figure 13, the whole frequency of Figure 14 has been lacked a crest and trough respectively than Figure 13 in addition, the medium-high frequency degree of balance is good.

Claims

1, a kind of non-axial symmetry loudspeaker cone, it is characterized in that: the profile of the bottom of sound basin (5) is for circular, the profile at sound basin top (6) is a kind of among round rectangle, ellipse sound, the runway shape, by adjusting the loop curve curvature and the spacing of sound basin cross section (1), (2), (3), (4), make sound pelvic curvature face (7) progressively carry out the transition to sound basin top (6) from sound basin bottom part (5).

2, the non-axial symmetry loudspeaker cone of this kind according to claim 1, it is characterized in that: sound basin cross section (1), (2), (3), (4) that four horizontal sections of sound basin are the loop curve shape, sound pelvic curvature face (7) is along sliding curved surface, there is not the sudden change of corner angle and curvature of curved surface, sound basin cross section (8), (9), (10), (11) that four longitudinal profiles of sound basin are circular arc.

3, a kind of loud speaker is characterized in that: comprising: the basin frame (14) that combines with magnetic circuit (15); The described non-axial symmetry sound basin of claim 1 (12) that combines with basin frame (14); Combine with described non-axial symmetry sound basin (12) and part is configured in voice coil loudspeaker voice coil (13) in the magnetic gap of magnetic circuit (15).

4, a kind of electronic equipment comprises at least: the amplifying circuit (21) of the signal in the described loud speaker of claim 3 (19), the described loud speaker (19) that is transfused to.