CN101516052B

CN101516052B - Loudspeaker

Info

Publication number: CN101516052B
Application number: CN 200810008320
Authority: CN
Inventors: 毕征庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-22
Filing date: 2008-02-22
Publication date: 2013-07-24
Anticipated expiration: 2028-02-22
Also published as: CN101516052A

Abstract

The invention relates to a loudspeaker. The loudspeaker comprises a cone which comprises a high tone area, a medium tone area and a low tone area. The high tone area of the cone is provided with high tone holes inside; the medium tone area of the cone is provided with medium tone holes inside; and the low tone area of the cone is provided with low tone holes inside. Furthermore, the cone bottom is positioned in a triangular area formed by the projection of the high tone holes, medium tone holes and low tone holes on the plane of the cone bottom. Still further, turnover bodies can be arranged on the inner surface of the cone corresponding to the positions of the holes. The cone in the loudspeaker is improved; the different areas of the cone are provided with the holes inside; the turnover bodies are further arranged on the inner surface of the cone corresponding to the holes. Therefore, the synchronization of the high tone, the medium tone and the low tone is realized; the musical sound given off by the loudspeaker becomes smoother; and the overtone effect is simultaneously produced.

Description

Loud speaker

Technical field

A kind of loud speaker of the present invention relates in particular to a kind of loud speaker that can improve tonequality.

Background technology

Along with development of times, the level of people's music appreciating improves gradually, and is also more and more higher to the requirement of tonequality.The approach of music appreciating has multiple, comprises concert, home audio and walkman etc., and the music of enjoying mostly is to obtain by the loud speaker in the stereo set, and therefore, the quality of loud speaker has directly had influence on the effect that music is put outward; Yet passing to people's ear by loud speaker, music all to come conducted acoustic waves through each parts in the loud speaker, will inevitably the produce power loss during work of each parts of loud speaker, and then cause tonequality impaired, in order to obtain better tonequality, will reduce the loss that is brought when loud speaker is put the music on outward as far as possible.

Loud speaker of the prior art adopts the mode of supercharging to come sounding, and promptly the atmospheric pressure that the sound basin is produced by air makes the vibration of sound basin, moves air molecule when vibrating by the sound basin, evokes the frequency sound wave identical with sound basin frequency and come sounding in air.Audio signal is made up of the signal of high frequency, intermediate frequency and three kinds of different frequencies of low frequency, because signal frequency difference separately causes them conduct also difference of the speed of coming out from loud speaker, wherein the high-frequency signal conduction of velocity is the fastest, therefore low frequency signal is the slowest, and music alt, the middle pitch that is sent by loud speaker is asynchronous with three kinds of sounds of bass.Further, only driven its part air on every side during the vibration of sound basin and vibrated, the air that remainder does not participate in vibrating produces resistance at the sound circumference pelvic, and the sound basin is distorted when vibration, cause the confusion of three kinds of sounds in the music, reduced the quality of musical sound.

Summary of the invention

The objective of the invention is provides a kind of loud speaker at the nonsynchronous defective of loud speaker sounding in the prior art, realizes that high pitch, middle pitch and bass are consistent by conduction of velocity behind the loud speaker, reaches three kinds of effects that sound is synchronous.

To achieve these goals, the invention provides a kind of loud speaker, comprise the sound basin, described sound basin comprises high pitch zone, middle pitch zone and bass zone, in described high pitch zone high sound hole is set, and in the middle pitch zone middle sound hole is set, and low sound hole is set in bass zone.

Be arranged in delta-shaped region at the bottom of the basin of described sound basin with the projection formation on described high sound hole, sound hole and low sound hole plane, place at the bottom of described basin.

The aperture of described high sound hole, middle sound hole and low sound hole equates.

Simultaneously, on sound basin inner surface the turnover body is set, the turnover body is corresponding with the position in hole, and the turnover body is cone-shaped structure, and the turnover body comprises integral type turnover sheet or several split type turnover sheets, and the side of turnover body becomes the obtuse angle with sound basin inner surface.

Loud speaker provided by the invention, by the vitals to loud speaker, the sound basin is improved, and in the zones of different of sound basin the hole is set; And at the sound basin inner surface of hole correspondence the turnover body is set further, realize high pitch, middle pitch and bass three synchronously, make musical sound become mellow and full.

Description of drawings

Fig. 1 is the sound basin schematic perspective view among the loud speaker embodiment one of the present invention;

Fig. 2 is the sound basin schematic top plan view among the loud speaker embodiment one of the present invention;

Fig. 3 is the hole enlarged diagram among the loud speaker embodiment two of the present invention.

11-sound basin; The 12-hole; 21-high pitch zone;

22-middle pitch zone; The 23-bass zone; The high sound hole of 201-;

Sound hole among the 202-; 203-hangs down sound hole; 31-sound basin inner surface;

32-sound basin outer surface; 33-turns down body.

Embodiment

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Loud speaker embodiment one of the present invention

The component of the high frequency in the audio signal, intermediate frequency and three kinds of different frequencies of low frequency has constituted the high pitch in the music, middle pitch and bass respectively, audio signal is converted to sound wave when outwards transmitting by loud speaker, different sounds spreads out of from the zones of different of loudspeaker cone, high pitch spreads out of from the zone near loudspeaker cone basin mouth, this zone is exactly the high pitch zone, bass is from spreading out of near the zone at the bottom of the loudspeaker cone basin, this zone is a bass zone, middle pitch spreads out of from the zone line of loudspeaker cone, and this zone is the middle pitch zone.

Fig. 1 is the sound basin schematic perspective view among the loud speaker embodiment one of the present invention.As shown in Figure 1, the embodiment of the invention provides a kind of loud speaker, comprises sound basin 11, and sound basin 11 is provided with three holes, and has provided the enlarged diagram in one of them hole 12.By on the sound basin, the hole being set, when music sound wave passed to the sound basin, the air that has neither part nor lot in vibration was discharged from by the hole, had reduced the resistance that the friction of this part air molecule and sound basin brings, the atmospheric pressure that makes the sound basin be subjected to reduces, and has avoided the distortion that is distorted of sound basin.Loud speaker that the embodiment of the invention provides changes the pressurized environment of loud speaker sounding in the prior art, reaches and utilizes the mode of decompression to realize the loud speaker sounding by the hole is set on the sound basin of loud speaker.

Fig. 2 is the sound basin schematic top plan view among the loud speaker embodiment one of the present invention.As shown in Figure 2, sound basin 11 is divided into three zones: high pitch zone 21, middle pitch zone 22 and bass zone 23, a hole is set respectively in each zone of sound basin 11, and wherein high pitch zone 21 is provided with high sound hole 201, middle pitch zone 22 is provided with middle sound hole 202, and bass zone 23 is provided with low sound hole 203.After the high pitch zone 21 of sound basin 11 is provided with high sound hole 201, reduced the resistance (be atmospheric pressure) of air to the high pitch zone 21 of sound basin 11, owing to the loud speaker sounding is that the promotion to sound basin 11 produces by atmospheric pressure, after resistance reduced, the conduction of velocity of high pitch reduced.In like manner, the conduction of velocity of middle pitch also reduces, but the relative high pitch of the amplitude that reduces of middle pitch is smaller.And sound basin 11 vibrates by the promotion of voice coil loudspeaker voice coil in the loud speaker, its direction of vibration be from the bottom of the basin to the basin mouth, near the bass zone 23 of sound basin 11 is at the bottom of sound basin 11 basins, after low sound hole 203 is set, the vibration of sound basin 11 bass zone 23 accelerates, and makes the bass conduction of velocity increase.Therefore after the zone was provided with the hole separately, the bass conduction of velocity strengthened, and the conduction of velocity of middle pitch and high pitch reduces, like this, and the speed basically identical that makes three kinds of sounds from loud speaker, conduct to come out.

Further, more as shown in Figure 2,101 delta-shaped regions that are arranged in the projection formation on high sound hole 201, sound hole 202 and low sound hole 203 plane, 101 place at the bottom of basin at the bottom of the basin of sound basin 11.With high sound hole 201, middle sound hole 202 and low sound hole 203 is that the summit constitutes a spatial triangle, and the projection in plane, 101 place at the bottom of the basin of sound basin 11 of this spatial triangle is obtained a projection triangle, and 101 are included in this projection triangle at the bottom of the basin of sound basin 11.Like this, can reach the purpose of high pitch, middle pitch and the bass relative equilibrium of from loud speaker, coming out, make musical sound harmonious more.

Particularly, more as shown in Figure 2, the pore size of high sound hole 201, middle sound hole 202 and the low sound hole 203 that is provided with in sound basin 11 equates that decide according to sound basin actual size in the aperture, preferably is made as 1 millimeter-2 millimeters.The aperture can not be too big, otherwise the conduction of music has broken away from the sound basin, can't sound, and can not reach the effect of the embodiment of the invention if the aperture is too little.

The embodiment of the invention respectively is provided with a hole by three zones at loudspeaker cone, makes that high pitch, middle pitch and bass are synchronous when loud speaker conducts out, and musical sound is more mellow and fuller.

Loud speaker embodiment two of the present invention

Fig. 3 is the hole enlarged diagram among the loud speaker embodiment two of the present invention.As shown in Figure 3, the embodiment of the invention is provided with turnover body 33 on sound basin inner surface 31 on the basis of embodiment one, turnover body 33 is corresponding with the position in hole 12, turnover body 33 integral body are cone-shaped structure, and turnover body 33 comprises integral type turnover sheet or several split type turnover sheets.Turnover body 33 lower edge are connected at the edge that sound basin inner surface 31 forms with

hole

12,31 one-tenth obtuse angles in side and sound basin inner surface of turnover body 33.Fig. 3 is the enlarged drawing in a hole 12 in the sound basin, to the corresponding turnover body that also is provided with of the sound basin inner surface of all the other the hole correspondences in the sound basin.

The turnover body can be to form when the hole is set, also can set the back in the hole and be provided with in addition.Therefore, the concrete structure of turnover body has various ways, wherein a kind of is the turnover body that comprises integral type turnover sheet, promptly turning down body only is made of a turnover sheet, this turnover sheet is a cone-shaped structure, the bottom surface of circular cone is connected with sound basin inner surface, and the side of turnover body and sound basin inner surface turn down body and are " mound shape " in obtuse angle when sound basin inner surface one side is seen; Can also be the turnover body that comprises several turnover sheets, the turnover body of this structure includes several turnover sheets, and the shape of each turnover sheet can be different, but the turnover body integral body that these several turnover sheet one common peripheral is set as is cone-shaped structure.

Again as shown in Figure 3, when sound wave was transmitted to the sound basin, the air of sound basin inner surface 31 1 sides produced outside thrust F1 to sound basin inner surface 31, because the existence of turnover body 33, after air draught arrived turnover body 33, assembled at 33 places at the turnover body.Simultaneously, after sound wave passes to the sound basin and causes sound basin double vibrations vertically, in sound basin outer surface 32 1 sides the inside thrust F2 of air to 32 generations of sound basin outer surface arranged also, because the existence in hole 12, air is subjected to the effect of thrust F2 to form the air-flow that sees through hole 12, and air-flow is also assembled at turnover body 33 places after seeing through hole 12 arrival turnover bodies 33, therefore, since accumulating in of air-flow be positioned at turnover body place near the hole 12 and produced slight vortex phenomenon.

The embodiment of the invention makes Kong Youping eye shape become mound shape behind the preceding hole, after musical sound passes to the sound basin by at sound basin inner surface the turnover body being set, form slight eddy current around in the hole, make near the atmospheric density in hole increase, it is simple and honest that musical sound becomes, and realized the effect of overtone.

It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of embodiment of the invention technical scheme.

Claims

1. a loud speaker comprises the sound basin, and described sound basin comprises high pitch zone, middle pitch zone and bass zone, it is characterized in that, in described high pitch zone high sound hole is set, and in described middle pitch zone middle sound hole is set, and low sound hole is set in described bass zone; Wherein, described high pitch zone is the zone of sound basin mouth, and described middle pitch zone is the zone in the middle of the sound basin, and described bass zone is the zone at the bottom of the sound basin basin.

2. loud speaker according to claim 1 is characterized in that, is arranged in the delta-shaped region with the projection formation on described high sound hole, described sound hole and described low sound hole plane, place at the bottom of described basin at the bottom of the basin of described sound basin.

3. loud speaker according to claim 1 and 2 is characterized in that, the aperture of described high sound hole, described middle sound hole and described low sound hole equates.

4. loud speaker according to claim 3 is characterized in that also comprising, on described sound basin inner surface the turnover body is set, and described turnover body is corresponding with the position in described hole.

5. loud speaker according to claim 4 is characterized in that, described turnover body is cone-shaped structure.

6. loud speaker according to claim 5 is characterized in that, described turnover body comprises integral type turnover sheet or several split type turnover sheets.

7. loud speaker according to claim 6 is characterized in that, the side of described turnover body becomes the obtuse angle with the inner surface of described sound basin.