CN201839397U

CN201839397U - Sound box

Info

Publication number: CN201839397U
Application number: CN2010205009052U
Authority: CN
Inventors: 赵越峰; 康健; 林红石
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-23
Filing date: 2010-08-23
Publication date: 2011-05-18
Anticipated expiration: 2020-08-23

Abstract

The utility model relates to a sound box comprising an upper shell, a lower shell, a loudspeaker, and a reflection cone, wherein the upper shell and the lower shell are in clamping connection and adhesion bond; the loudspeaker is connected between the upper shell and the lower shell by a gasket in a sealing manner; the reflection cone is arranged in the upper shell, and the tip of the reflection cone points to the loudspeaker; sounding holes are evenly distributed on the upper shell and positioned between the reflection cone and the loudspeaker; and the upper shell and the lower shell are clamped by a fastener which consists of a bulge and a pit. For the sound box, as the upper shell and the lower shell are in clamping connection and adhesion bond, the fixity property is good; as the gasket is adopted, the sealing property is good, and the resonance of the shells and noises are avoided; as the reflection cone is adopted, sound can be centralized; and the excellent sounding holes can eliminate high-frequency sound with bad performance and guarantee the performance of low-pitch sound.

Description

Audio amplifier

Technical field

The utility model relates to a kind of audio amplifier, relates in particular to a kind of effective small size audio amplifier of sound that goes out.

Background technology

Along with development of times, more and more increased music element in people's the life, music is seen everywhere, and makes people's life more and more be unable to do without music.

And because the high-speed and high efficiency of the modern life is also more and more stronger to the requirement of portability, so a lot of small-sized audio amplifiers just occurred.And the small-sized audio amplifier that existing small-sized audio amplifier, especially diameter are produced at the loudspeaker of 50mm and following size because casing or casing are airtight bad with loudspeaker, causes sound short circuit, housing to resonate, and shows as that sound is little, bass is not enough, phenomenons such as noise.

Existing small-sized audio amplifier loudspeaker when normal the use are oriented when just going up, so cause the sound reflection path bad, cause sound field to be dispersed, and sound is not concentrated.Sender is bad with cooperating of loudspeaker, shows as the sender wide prolongation sound of high band spaciousness when big, and sender hour sound is dull sharp-pointed.And sender generally is irregularly shaped or open.

In addition, the organ for resonance of present small-sized audio amplifier generally is changeless, perhaps has only two states, causes band segment sound muddy clear when using identical organ for resonance during the sound of output different frequency range.

The utility model content

The purpose of this utility model is at the defective of existing audio amplifier, and a kind of audio amplifier is provided, and air-tightness is good, and noise is few; The sound reflection path is good, in the sound set and clear.

For achieving the above object, the utility model provides a kind of audio amplifier, and described audio amplifier comprises:

Upper shell and lower house, described upper shell is connected with described lower house with glued by clamping;

Loud speaker is connected between described upper shell and the lower house by washer sealing;

Reflection cone is positioned at described upper shell, and the awl point of described reflection cone is towards described loud speaker;

Wherein, described upper shell has sender, between described reflection cone and loud speaker.

Described upper shell and lower house are by the buckle clamping.Described buckle is made up of projection and depression.The awl point of described reflection cone is apart from 9 to 10 millimeters of loud speakers.The height of described reflection cone is 8 to 9 millimeters.Described sender evenly is arranged in described upper shell.Described upper shell and lower house be shaped as ampuliform.Described upper shell and lower house be shaped as the beer ampuliform.

Therefore audio amplifier of the present utility model has following advantage:

1, because upper shell and lower house adopt clamping and gluing, so stationarity is good;

2, Passscheiben makes good leak tightness, no housing resonance, and do not have noise;

Thereby 3, because reflection cone make in the sound set;

4, good sender can be eliminated showing bad HFS, has guaranteed bass part simultaneously.

Description of drawings

Fig. 1 is the structural representation of the utility model audio amplifier;

Fig. 2 is the profile schematic diagram of the utility model audio amplifier.

Embodiment

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model audio amplifier, and as shown in the figure, audio amplifier of the present utility model comprises: upper shell 1, lower house 2, loud speaker 3, reflection cone 4 and packing ring 5.

Link together by clamping and glued dual mode between upper shell 1 and the lower house 2, because the mode of clamping is to guarantee the stability of fixing, two parts that are fixed after promptly fixing still have some and become flexible, and prolongation in time is loosening can be serious all the more; But the air-tightness after can not guaranteeing to fix; And gluing fixed form is soft cooperation, but reliability of fixation is poor.So upper shell 1 of the present utility model and lower house 2 use clamping and two kinds of connected modes of handing-over simultaneously.So both the connection that can make was stable, and soft cooperation is arranged.

Loud speaker 3 passes through packing ring 5 sealing and fixing between upper shell 1 and lower house 2.Thereby what guaranteed upper shell 1 and lower house 2 fixedly requires air-tightness, guarantees the isolation of ante-chamber and back cavity, has avoided resonance simultaneously, has good reliability.

So mode that audio amplifier upper shell 1 of the present utility model and lower house 2 adopt buckle to combine with viscose glue, the packing ring 5 that adds soft materials simultaneously is fixing, guaranteeing the bubble-tight while, change the natural frequency of the housing of upper shell 1 and lower house 2 compositions, make the possibility that resonance takes place reduce, guaranteed high reliability simultaneously again.

And the clamping between upper shell 1 and the lower house 2 can utilize buckle, and buckle can adopt projection to cooperate the mode of depression, makes that the two cooperation is more firm, has the section sense simultaneously, can guarantee the reliability of assembling.Before the button bit assembling of buckle, use adhesive glue, for example the one-component solvent-borne type glue of compositions such as rubber, GR mixture, thickener is uniformly coated on buckle and binding site, thereby guarantees the well secured of buckle.

Locate with the fixed interval (FI) of loud speaker 3 at upper shell 1, lower house 2, be lined with packing ring 5.Packing ring 5 can be soft EVA foam material.

Reenter shown in Figure 1ly, reflection cone 4 is positioned at upper shell 1, and the awl point of reflection cone 4 is towards loud speaker 3, and the awl point of reflection cone 4 is 9 to 10mm bestly to be 9.5mm apart from loud speaker 3, and the height of reflection cone 4 is 8 to 9mm, and the best is 8.6mm.

Reflection cone 4 is sound reflection faces, and the curved surface of reflection cone 4 is as the criterion with sound wave direction reflection with level of approximation after the reflection cone surface reflection.The material of reflection cone adopts ganoid hard material such as ABS, to reach the usable reflection of sound wave and there is not bigger loss.So the sound that reflection cone 4 sends for loud speaker 3 provides a good reflection path, thereby make the sound field convergence, in the sound set.This has just overcome prior art does not have reflection cone to cause most of sound upwards to be propagated, and is unfavorable for people's the defective of listening to.

Fig. 2 is the profile schematic diagram of the utility model audio amplifier, as shown in the figure, has sender 10 on upper shell 1.Referring to shown in Figure 1, the position of sender 10 is between reflection cone 4 and loud speaker 3 again.Sound by reflection cone 4 reflections can send by sender 10.

And, arranging of sender 10 can be to be arranged on the upper shell uniformly, promptly 360 spend full symmetrical configurations, can guarantee that like this listening to a little of all angles can both hear similar acoustical quality, the phonate hole size that cooperates 3.5mm*14mm simultaneously, make that the sound that spreads out of is eliminated at the bad HFS of loud speaker performance, kept middle bass part simultaneously again.

She Ji sender 10 has overcome the prior art sender wide prolongation sound of high band spaciousness when big, the dull sharp-pointed defective of sender hour sound like this.

The operating room after the loud speaker 3 in upper shell 1 and the lower house 2 is sounded, after reflection cone 4 reflection, is sent by the sender 10 of upper shell 1.And thereby audio amplifier of the present utility model can obtain different acoustical qualities according to different music adjustment organ for resonance.The sound cavity volume is little, and bass effect is poor, and the sound cavity volume is big, and bass effect is good.Adopt telescopic structure, by a plurality of sounds of different gear combination results chamber size, thus corresponding different acoustical qualities.

In addition, audio amplifier of the present utility model is in order to satisfy requirement attractive in appearance, and the profile that its upper shell and lower house are formed can be an ampuliform, especially the beer ampuliform.

It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the spirit and scope of technical solutions of the utility model.

Claims

1. audio amplifier is characterized in that described audio amplifier specifically comprises:

2. according to the described audio amplifier of described claim 1, it is characterized in that: described upper shell and lower house are by the buckle clamping.

3. according to the described audio amplifier of described claim 2, it is characterized in that: described buckle is made up of projection and depression.

4. according to the described audio amplifier of described claim 1, it is characterized in that: the awl point of described reflection cone is apart from 9 to 10 millimeters of loud speakers.

5. according to the described audio amplifier of described claim 4, it is characterized in that: the height of described reflection cone is 8 to 9 millimeters.

6. according to the described audio amplifier of described claim 1, it is characterized in that: described sender evenly is arranged in described upper shell.

7. according to the described audio amplifier of described claim 1, it is characterized in that: the profile that described upper shell and lower house are formed is the beer ampuliform.