CN2297028Y

CN2297028Y - Vertical cylindrical whole diapason HF sound cylinder

Info

Publication number: CN2297028Y
Application number: CN 97240036
Authority: CN
Inventors: 林伟健
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-28
Filing date: 1997-05-28
Publication date: 1998-11-11
Anticipated expiration: 2007-05-28

Abstract

The utility model discloses a vertical cylindrical whole diapason hf sound cylinder, and the utility model comprises a cylindrical casing body, an upper cover, a base, a tweeter, a mid-frequence horn, a woofer, a cover of the sound cylinder, two bass diffusers, and two groups of ring-shaped bass sound outputs. The two diffusers are both conical bodies, and the conical tops of the conical bodies are face to face and are respectively positioned the upper end of the base and the lower end of the mid-frequency; the ring-shaped bass output of each group is composed of a plurality of bass sound outlets, the ring-shaped bass sound outlets of the two groups are respectively arranged on the walls of the cylindrical casing body, and the woofer is arranged between the two groups of ring-shaped bass sound outputs. The utility model has the advantages of wide frequency band, good frequency response with full diapason, pure sound quality, and evenly directivity spreading; the utility model is an ideal sound cylinder of households and music halls.

Description

Vertical cylindrical gamut H-F sound column

The utility model relates to a kind of sound reproduction equipment, especially a kind of vertical cylindrical gamut H-F sound column.

The sound column kind that the audio amplifier, particularly stereo set of sound system use at present use is a lot, and each is different to some extent for version, and pluses and minuses are also respectively arranged.Closed audio amplifier be difficult to obtain enough LF-response, and nonlinear distortion is big, sensitivity is low because compressed-air actuated adjection rises the resonance frequency of loud speaker, and electro-acoustic conversion efficiency is low; The resonance frequency of inverted phase type can be designed to equal even be lower than the frequency of loud speaker, and use cone loudspeaker can replace expensive Rubber corrugated ri loudspeaker, and reach low resonant frequency, so large-scale, high-quality player is selected inverted phase type for use more than 90%, and its electro-acoustic conversion efficiency is up to 0.7%, but inverted phase type also has shortcoming, and it is faster than closed decay to penetrate sound pressure level such as the width of cloth of the low-frequency band below the sound column resonance frequency, often produces the low frequency sound that " rumbles "; The guiding theory of horn formula design mainly is in order to improve electroacoustic efficiency, and some in fact also is a kind of closed sound column, though some bass tone color is pure, the low frequency frequency response often has many peak valley points, and horn and sound basin link, and causes nonlinear distortion easily; Control directive property audio amplifier, even as polyhedron audio amplifier directive property, acoustical sound, but heavy volume is big, spherical case reflective sound wave interferes with each other, tonequality is adjusted difficulty, taper non-directive audio amplifier bandwidth but complex structure, low frequency Hz-KHz height, sound column directive property is strong, must careful adjust the position in the use and just there is optimum efficiency at the inclination angle, radially loudspeaker acoustic enclosure high pitch partial design becomes inverted phase type, and low frequency cell is provided with diffuser, and this audio amplifier has had both the characteristics of above-mentioned various audio amplifiers, volume is also little, but the middle pitch frequency response is poor.In sum, the various audio amplifiers that use not are perfect in every way at present, and are unsatisfactory in the use.

The utility model is to provide a kind of bandwidth, the gamut frequency response is good, distortion is little, highly sensitive, tonequality is pure, the uniformly perpendicular cylinder gamut H-F sound column of directive property expansion.

The utility model comprises cylindrical housings, loam cake, base, loudspeaker, mediant trumpet, bass horn, sound column face shield, 2 bass diffusers and 2 groups of annular bass sound mouths.The axis of bass horn and 2 bass diffusers and 2 groups of annular bass sound mouths is positioned at the circular cylindrical shell body axis, and 2 bass diffusers are bullet, and the bullet vertex of a cone is relative, lays respectively at base upper end and mediant trumpet lower end; Every group of annular bass sound mouth is made up of several bass sound mouths, and 2 groups of annular bass sound mouths lay respectively on the cylinder case body wall that the bass diffuser conical surface is relative up and down, and bass horn is between 2 groups of annular bass sound mouths.

Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.

Fig. 1 is the partial sectional view of the utility model embodiment;

Fig. 2 is the present embodiment front view.

See figures.1.and.2, the utility model comprises cylindrical housings 8, loam cake 1, base 9, loudspeaker 2, mediant trumpet 3,

bass horn

6,7,2 bass diffusers 5 of sound column face shield and 2 groups of annular bass sound mouths 4;

Bass horn

6 and 2

bass diffusers

5 and 2 groups of annular bass sound mouth 4 axis are positioned on cylindrical housings 3 axis, 2 bass diffusers 5 are bullet, the bullet vertex of a cone is relative, lay respectively at base 9 upper ends and mediant trumpet 3 lower ends, every group of annular bass sound mouth 4 is made up of several bass sound mouths, 2 groups of annular bass sound mouths 4 lay respectively on the relative circular cylindrical shell body wall of bass diffuser 5 conical surfaces, and bass horn 6 is between 2 groups of annular bass sound mouths 4.

The utility model adopts the vertical cylindrical housing, and frequency response curve is more smooth, has good frequency response characteristic, adopts conical low frequency diffuser, cooperates the bass sound mouth, and low frequency directive property is expanded to some extent, this sound column a kind of high-quality sound column of can yet be regarded as.

Claims

1, a kind of vertical cylindrical gamut H-F sound column, it comprises cylindrical housings (8), loam cake (1), base (9), loudspeaker (2), mediant trumpet (3) and sound column face shield (7), it is characterized in that: it also has the bass horn (6) coaxial with cylindrical housings (8), 2 bass diffusers (5) and 2 groups of annular bass sound mouths (4); 2 bass diffusers (5) are bullet, and the vertex of a cone of bullet is relative, and lay respectively at base (9) upper end and mediant trumpet (3) lower end; Every group of annular bass sound mouth (4) is made up of several bass sound mouths, and 2 groups of annular bass sound mouths (4) lay respectively on relative cylindrical housings (8) wall of the bass diffuser conical surface, and bass horn (6) is between 2 groups of annular bass sound mouths (4).