CN201063837Y

CN201063837Y - Gamut high-fidelity sound post

Info

Publication number: CN201063837Y
Application number: CNU2007200535149U
Authority: CN
Inventors: 陈丽群
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-29
Filing date: 2007-06-29
Publication date: 2008-05-21
Anticipated expiration: 2017-06-29

Abstract

The utility model discloses a gamut hi-fi column loudspeaker, comprising a cylindrical shell body, a top cover, a pedestal, an althorn, a median speaker, a sackbut, and a column loudspeaker mask, wherein the sackbut and the cylindrical shell body share the same shaft. The utility model also comprises a pair of bass diffusers sharing the same shaft with the cylindrical shell body and circular bass outputs, wherein the bass diffusers are two conic bodies, the tops of the conic bodies are corresponding to each other and the bass diffusers are positioned at the upper part of the pedestal and the lower part of the median speaker; two circular bass outputs are provided and are positioned respectively on the shell of the conic bodies corresponding to the conic shells of the bass diffusers, and the sackbut is arranged between the two circular bass outputs; and each circular bass output comprises a plurality of equal circumferential bass outputs. The utility model has the advantages of wide frequency band, good gamut frequency response, uniform extension of directivity, etc.

Description

A kind of gamut H-F sound column

Technical field

The utility model relates to the sound reproduction equipment unit, specifically is a kind of gamut H-F sound column of sound system.

Background technology

At present, the audio amplifier kind of sound system is a lot of on the market, and structure also has nothing in common with each other.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 substitute expensive Rubber corrugated ri loudspeaker, and reach low resonant frequency, so it is large-scale, high-quality sound reproducer uses inverted phase type more, and electro-acoustic conversion efficiency height, but inverted phase type also has shortcoming, sound radiation pressure level such as the low-frequency band below the resonance frequency of sound column is faster than closed decay, often produce low frequency " rumble " sound, the guiding theory of horn formula design mainly is in order to improve electroacoustic efficiency, some in fact also is a kind of closed sound column, though some bass tone color is pure, but 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, and 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, and radially loudspeaker acoustic enclosure high pitch partial design becomes inverted phase type, low frequency cell is provided with diffuser, this audio amplifier has had both the characteristics of above-mentioned various audio amplifiers, and volume is also little, combined and instant, more welcome on market, but the middle pitch frequency response is poor.In a word, use often not fully up to expectations.

The utility model content

The purpose of this utility model is in order to solve above-mentioned deficiency, and a kind of bandwidth is provided, the gamut frequency response is good, distortion is little, highly sensitive, tonequality is pure, directive property is expanded uniform gamut H-F sound column.

The technical solution that the utility model adopts in order to reach above-mentioned effect is as follows:

This gamut H-F sound column, comprise the loudspeaker, mediant trumpet, the bass horn that set gradually between cylindrical housings, top cover, base, top cover and the base, the sound column face shield, bass horn and cylindrical housings are coaxial, it is characterized in that it also comprises bass diffuser and the annular bass sound mouth coaxial with cylindrical housings; Described bass diffuser is 2 bullets, and the bullet vertex of a cone is relative, lays respectively at base upper end and mediant trumpet lower end; Described annular bass sound mouth is provided with 2 groups, lays respectively on the cylinder case body wall that the bass diffuser conical surface is relative relatively up and down, and bass horn is between 2 groups of annular bass sound mouths.

Described every group of annular bass sound mouth is made up of several bass sound mouths that equal circumference is provided with.

The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:

This sound column adopts cylindrical, and good looking appearance is small and exquisite, and the directive property expansion is even, and loudspeaker, mediant trumpet, bass horn stack are provided with, bullet bass diffuser, and the gamut frequency response is good; Distortion is little, highly sensitive, tonequality is pure.

Description of drawings

Fig. 1 is the utility model broken section structure chart;

Fig. 2 is the utility model appearance structure schematic diagram.

Description of reference numerals: cylindrical housings 1, loudspeaker 2, mediant trumpet 3, annular bass sound mouth 4, bass diffuser 5, bass horn 6, sound column face shield 7, top cover 8, base 9.

Embodiment

As shown in Figure 1 and Figure 2, gamut H-F sound column of the present utility model comprises cylindrical housings 1, top cover 8, 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; Loudspeaker, mediant trumpet, bass horn superpose successively and are arranged between top cover and the base;

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, volume is little not to take up space, convenient with other sound reproduction coordinative composition of equipments, frequency response curve is more smooth, has good frequency response characteristic, adopts conical low frequency diffuser, cooperate the bass sound mouth, low frequency directive property is expanded to some extent, and the directive property expansion is evenly satisfied the high-quality use needs of people.

Claims

1. gamut H-F sound column, comprise cylindrical housings, top cover, base, the loudspeaker that sets gradually between top cover and the base, mediant trumpet, bass horn, the sound column face shield, bass horn and cylindrical housings are coaxial, it is characterized in that it also comprises bass diffuser and the annular bass sound mouth coaxial with cylindrical housings; Described bass diffuser is 2 bullets, and the bullet vertex of a cone is relative, lays respectively at base upper end and mediant trumpet lower end; Described annular bass sound mouth is provided with 2 groups, lays respectively on the cylinder case body wall that the bass diffuser conical surface is relative relatively up and down, and bass horn is between 2 groups of annular bass sound mouths.

2. gamut H-F sound column according to claim 1 is characterized in that: described every group of annular bass sound mouth is made up of several bass sound mouths that equal circumference is provided with.