CN2899361Y

CN2899361Y - Improved loundspeaker structure

Info

Publication number: CN2899361Y
Application number: CNU2005201279738U
Authority: CN
Inventors: 大卫柯尼亚斯基
Original assignee: Dls Swensk AB
Current assignee: Dls Swensk AB
Priority date: 2005-09-28
Filing date: 2005-09-28
Publication date: 2007-05-09
Anticipated expiration: 2015-09-28
Also published as: EP1771035A3; EP1771035A2

Abstract

An improved loudspeaker structure comprises a basin-shaped frame, a yoke iron, a tone coil, a drum paper, a tone basin and a dustproof cover, wherein, the yoke iron is arranged at the outer end of the basin-shaped frame, the tone coil is fixed on the protruding column in the center of the yoke iron, and the drum paper is pasted between the tone coil and the frame, meanwhile, a hollow tone basin protruding to the axes of the frame is connected to the tone coil. The dustproof cover is arranged at the expanding part of the tone basin to form a hollow cavity with the tone coil. When the loudspeaker moves, the sound wave sent by the tone coil results a more excellent tone of intermediate frequency and removes the attenuation existing at the tail segment of intermediate frequency tone in sackbut, consequently, the transition between the intermediate frequency and the high frequency tones becomes more smooth, and the range of frequency response is also extended. At the same time, the use of tone-dividing elements is simplified; furthermore, the manufacturing cost is reduced.

Description

Improved horn structure

Technical field

The utility model relates to a kind of improved horn structure, particularly a kind ofly makes intermediate frequency tonequality performance more outstanding, avoids the improved horn structure of intermediate frequency rear range decay.

Background technology

The frequency range of human sub-audible sound, generally can reach 20Hz～20KHz, the spectral range of various music wherein, be about about 40Hz～18KHz, therefore in order to allow each frequency range of music completely present, good loudspeaker must have broad frequency response (Frequency Response) characteristic, to guarantee that the tonequality of playing can former sound reproducing.

As shown in Figure 4, existing loudspeaker are by framework 10, yoke 20, voice coil loudspeaker voice coil 30, drum paper 40, and constitute in voice coil loudspeaker voice coil loam cake unification hemisphere dust cover 50, wherein rouse paper 40, the magnet of voice coil loudspeaker voice coil 30 and formation yoke 20, materials such as coil, characteristic curve and quality quality to loudspeaker all have significant effects, yet loudspeaker have its physical restriction, big exactly loudspeaker are difficult to send high frequency usually, and little loudspeaker are difficult to send low frequency usually, therefore be difficult to make the pronunciation loudspeaker that to contain gamut, so general sound equipment way all is to arrange in pairs or groups mutually with heavy caliber loudspeaker and small-bore loudspeaker, be responsible for medium and low frequency with the heavy caliber loudspeaker, and small-bore loudspeaker are responsible for high frequency, though it is low that bass horn can be contained, the intermediate frequency range, but described intermediate frequency is extending upward of low frequency, cause the intermediate frequency rear range deficiency that seriously decays, therefore when the collocation loudspeaker uses, in will causing, breach appears in the linking of high band, form so-called intermediate frequency depression, so visible at present a kind of coaxial-type loudspeaker, on the axle center of bass horn, add a mediant trumpet, remedy the deficiency of intermediate frequency thus.

Yet, how not utilize other size loudspeaker, and do not increase under the condition of cost, allow intermediate frequency tonequality promote and the extension frequency response range, make sound equipment clearly present basic, normal, high frequency range, be the problem that the utility model institute desire solves.

Summary of the invention

Main purpose of the present utility model, be to provide a kind of improved horn structure, can promote the intermediate frequency range that bass horn is contained, make the performance of intermediate frequency tonequality more outstanding, avoid the decay of intermediate frequency rear range, make that the linking of frequency response between middle and high frequency is more smooth-going, and extensible frequency response range, the assembly of simplifying the partial network simultaneously uses, and then reduces manufacturing cost.

To achieve these goals, the technical solution adopted in the utility model is: a kind of improved horn structure, include framework, yoke, voice coil loudspeaker voice coil, drum paper and dust cover, described framework outer end is provided with a yoke, fix a voice coil loudspeaker voice coil on the central outstanding projection of described yoke, between voice coil loudspeaker voice coil and framework, be pasted with bulging paper; It is characterized in that:

Be provided with a sound basin that convexedly stretches in the framework axle center on the described voice coil loudspeaker voice coil, described sound basin is the hollow outer expanding shape, and the bellend of one end is provided with a dust cover, and the other end is connected with on voice coil loudspeaker voice coil, forms a chamber.

The advantage that the utlity model has:

1, described sound basin is to be connected with on voice coil loudspeaker voice coil and to convexedly stretch in the framework axle center, described sound basin has a height, and the sound wave at energy loudspeaker center, significant interval makes it reduce overlapping phenomenon to outdiffusion equably, therefore in allowing, the performance of bass is clearer and more definite, and can promote frequency response;

2, utilize a dust cover to cover, make to form a hollow chamber between sound basin and the voice coil loudspeaker voice coil, make that the linking of frequency response curve is more smooth-going easily between middle and high frequency range, avoid the situation of intermediate frequency depression to take place, and can extend the audio frequency frequency domain in sound basin bellend opening.

Description of drawings

Fig. 1 is stereoscopic figure of the present utility model;

Fig. 2 is an exploded perspective view of the present utility model;

Fig. 3 is a generalized section of the present utility model;

Fig. 4 is existing horn structure cutaway view.

Description of reference numerals: 10 frameworks; 20 yokes; 30 voice coil loudspeaker voice coils; 40 drum paper; 50 dust covers; 1 framework; 2 yokes; 3 voice coil loudspeaker voice coils; 4 drum paper; 5 sound basins; 51 bellends; 52 chambers; 6 dust covers.

Embodiment

See also Fig. 1 to shown in Figure 3, improved horn structure of the present utility model, it includes a peviform framework 1, yoke 2, voice coil loudspeaker voice coil 3, drum paper 4, sound basin 5 and dust cover 6, described framework 1 outer end is provided with a yoke 2, fix a voice coil loudspeaker voice coil 3 on the described yoke 2 central outstanding projections, be pasted with bulging paper 4 at voice coil

loudspeaker voice coil

3 and 1 of framework, be provided with a sound basin 5 that convexedly stretches in framework 1 axle center on the described voice coil loudspeaker voice coil 3, described sound basin 5 is the hollow outer expanding shape, has height greater than 1 centimeter, the bellend 51 of one end and framework 1 opening and are covered with a dust cover 6 in the same way, and the other end is connected with and forms a hollow chamber 52 on voice coil loudspeaker voice coil 3.

Please continue and consult Fig. 3 and Fig. 4, as shown in Figure 4, because the bulging paper 40 on the loudspeaker is open coniform basin body, there is no any obstruct at 40 on paper of drum, cause loudspeaker in the process of raising one's voice, overlapped and produce sound and mix by the sound wave that given out of drum paper 40, therefore the high and low point of articulation is more indeterminate, and the tonequality of raising one's voice is relatively poor.

Review improved horn structure of the present utility model, as shown in Figure 3, though its basic module framework omits together with prior art, yet specifically: described sound basin 5 is to be connected with on voice coil loudspeaker voice coil 3 and to convexedly stretch in framework 1 axle center, described sound basin 5 has a height, hemisphere dust cover 50 (as shown in Figure 4) apparently higher than existing loudspeaker, so 5 effects that can show of described sound basin, be the sound wave at energy loudspeaker center, significant interval, make it reduce overlapping phenomenon to outdiffusion equably, therefore in allowing, the performance of bass is clearer and more definite, and can promote frequency response.

In addition, as shown in Figure 4, for existing horn structure, because the peviform structure of loudspeaker constitutes radial opening, generally speaking, apart from healing the opening both sides far away in the axle center, the vibration frequency of drum paper 40 is very fast, and therefore the audio frequency that produces is higher, on the contrary more near place, loudspeaker axle center part, the vibration frequency of its drum paper 4 is slower, and therefore the audio frequency that sends is lower.

Review improved horn structure of the present utility model, as shown in Figure 3, it is specifically: utilize a dust cover 6 to be covered on sound basin 5 bellends 51 openings, make sound basin 5 and voice coil loudspeaker voice coil 3 between form a hollow chamber 52, when loudspeaker start of the present utility model, the sound wave that sends by voice coil loudspeaker voice coil 3, can promote audio frequency via chamber 52, and then obtain better intermediate frequency, make that the linking of frequency response curve is more smooth-going easily between middle and high frequency range, avoid the situation of intermediate frequency depression to take place, and can extend the audio frequency frequency domain.Surveying extensible frequency response via the inventor reaches more than the 18KHz, compared to existing loudspeaker, loudspeaker of the present utility model more can allow the performance of intermediate frequency tonequality more outstanding, make that the linking of frequency response curve is more smooth-going easily between middle and high frequency range, and because the extension of frequency response, relative just can simplify the assembly of partial network, and then is minimized manufacturing cost.Take a broad view of above-mentionedly, the utility model not only solves commonly uses the disappearance that the loudspeaker sound mixes, and makes the branch point of articulation of high, medium and low audio frequency more clear and definite, and effectively extends frequency response range, promotes the performance of middle and high frequency tonequality and more outstanding.The above, only be a preferred embodiment of the present utility model, when can not be to limit the scope that the utility model is implemented, those skilled in the art such as, the equalization of doing according to spirit of the present utility model changes and modification, must belong to patent covering scope of the present utility model.

Claims

1. an improved horn structure includes framework, yoke, voice coil loudspeaker voice coil, drum paper and dust cover, and described framework outer end is provided with a yoke, fixes a voice coil loudspeaker voice coil on the central outstanding projection of described yoke, is pasted with bulging paper between voice coil loudspeaker voice coil and framework; It is characterized in that: