CN1051654A - Crystal speaker and manufacture method thereof - Google Patents

Abstract

Provided by the present invention is a kind of glass audio amplifier and the method for making this audio amplifier.It is that available plate glass forms through bonding, and the moulding process of useable glass is again earlier made one with the major part of casing, and then with other parts through bonding or form casing in the affixed mode of securing member.Simultaneously in audio amplifier, adopt sealed tube again, and make loud speaker at the back-to-back overlaying structure of sealed tube.This audio amplifier not only cost of raw material is low, and manufacture craft is simple, and elegant in appearance, and tonequality is pure, the fidelity height.

Description

Crystal speaker and manufacture method thereof

The present invention relates to a kind of audio amplifier of sound system and make the method for this audio amplifier.

Audio amplifier is as the mouthpiece of sound system, in whole sound system, has very important effect, and high-fidelity (Hi-Fi) sound system proportion is big more, there is data to show, the proportion that each link influences tonequality from high-fidelity (Hi-Fi) sound system: power amplifier accounts for 10-20%, signal source (source of sound) accounts for 20-30%, and audio amplifier will account for 50-60%; The price of Hi-Fi sound-box accounts for the over half of a whole set of stereo set abroad.This shows audio amplifier shared status important in whole sound system.

Yet audio amplifier always is again the most difficult the weakest link in high-fidelity (Hi-Fi) sound system, comes compared with other link, and performance index are much lower.For example, the harmonic distortion of power amplifier can be accomplished less than 0.01%; Even the harmonic distortion of the integrated power amplifier (as TDA2030A) that price is popular also can be accomplished less than 0.1% easily; The quality of modern compact disc (CD player) is almost to the utmost, and index presses on towards natural; And the harmonic distortion of common audio amplifier is all about 10%, even Hi-Fi sound-box is also about 3%.Shared status is extremely unbecoming in sound system with it, serious floor mop the back leg of sound system.The reason that this existing speaker performance is bad has also that the tank material of audio amplifier and structural design are unreasonable to be caused.We know that at present, the material of sound box generally adopts wooden or the plastics manufacturing, because of the mechanical strength of these materials is not enough, can not stop " rumbling " sound by casing resonance generation, promptly so-called sound coloration at all.Therefore, present stage is improved the performance of audio amplifier, reduces distortion, has more realistic meaning.

The purpose of this invention is to provide a kind of Hi-Fi sound-box and manufacture method thereof, it had both changed the material of sound equipment, had changed the structure of audio amplifier again.

The object of the present invention is achieved like this: the casing of this audio amplifier (or claiming casing) is made by glass, and can be made into closed or inverted phase type.Its manufacture method is: it both can adopt plate glass to form through bonding, and the moulding process of useable glass is again earlier made one with the major part of casing, and then with other parts through bonding or form casing in the affixed mode of securing member.

Narrate embodiments of the invention according to accompanying drawing below.

Fig. 1 is closed two loud speaker crystal speakers.

Fig. 2 is the cutaway view of Fig. 1.

Fig. 3 is inverted phase type two loud speaker crystal speakers.

Fig. 4 is the cutaway view of Fig. 3.

Fig. 5 is three frequency division five loud speaker crystal speakers.

Fig. 6 is the cutaway view of Fig. 5.

Fig. 7 is the cutaway view of four frequency divisions, ten loud speaker crystal speakers.

Fig. 8 is the cutaway view of Fig. 7.

Shown in Fig. 1-2: this closed audio amplifier is a kind of basic model audio amplifier, and this audio amplifier is provided with a woofer 1 and a high pitch loudspeaker 2.Sound box is to be formed through bonding (stick with glue the high temperature fusion welding that connects and comprise glass bonding promptly comprising herein) by plate glass, its preceding case face 3 is to adopt double glazing to be bonded, and the processing method with grinding is processed into the different loud speaker holddown groove of diameter respectively on the layer glass of inside and outside, and the glass outer slightly larger in diameter of holddown groove is in internal layer.For example the diameter of glass outer woofer 1 is processed into 165 millimeters, nexine then be processed into 156 millimeters, after bonding, what loud speaker just can be more firm is fixed on the audio amplifier so again.If what the glass outer of preceding case face 3 adopted is 3 millimeters thick, nexine glass is 5 millimeters thick, just the available 8 millimeters plate glass of other parts glass of casing so.For making bonding casing globality better, can also establish reinforcement 4 at the angle of cut place of each plate glass, and preceding case face 3 also can be at one deck different loud speaker holddown groove of diameter that is processed on glass.Above-mentioned described crystal speaker casing glass, both available colourless transparent glass also can adopt tea, indigo plant, coloured glass such as red.Can make sound-absorbing material and no sound-absorbing material in the audio amplifier case two kinds, what sound-absorbing material was arranged is to lay one deck felt earlier at box house, and then sound-absorbing material such as filling ultra-fine fibre glass.Last again the rear cabinet face or the side abrasive drilling of casing gone out wire guide, connect with loud speaker, then wire guide is sealed, and as required loud speaker is carried out type selecting, just finished the making of audio amplifier with lead.

The phase inverted cabinet of Fig. 3-4 is basic identical with basic structure and the manufacture method of Fig. 1-2, and it also is a kind of basic model audio amplifier, and different is to have increased a paraphase hole or phase-reversing tube 5 below preceding case face 3 for it.Above-mentioned two kinds of audio amplifiers are the basic structure of this crystal speaker.But forming technique according to present glassware, whole box body can be made of the 2-3 piece, promptly the preceding case face of audio amplifier and four sides (comprising the tank of raising one's voice) one-shot forming, and the rear cabinet face is holed with bonding or mutual conjunction plane, with securing member these two parts are constituted whole audio amplifier again, perhaps four sides with front and back case face and an integral body constitute casing with above-mentioned consolidation method.

Three frequency division five loudspeaker acoustic enclosures shown in Fig. 5-6 have not only increased a woofer 6 and high pitch loudspeaker 2 on above-mentioned basic model audio amplifier basis, but also have adopted back-to-back overlaying structure with loud speaker 1 in the casing of woofer 1.Its feature is: because of the voice unit level has been adorned two high pitch loudspeakers, broadening the directive property of high pitch, and bass unit adopt two back-to-back woofer make the carton cone that is in 7 li of same sealed tubes, produce opposite each other suction or release simultaneously at each work half cycle, thereby offset the asymmetry of loud speaker output waveform.Because every loud speaker all has an intrinsic resonance frequency and a lot of peak, paddy frequency, harmonic distortion is very big near these frequencies, and the natural resonance frequency of two loud speakers and peak, paddy frequency are difficult to consistent again, thereby just can produce the effect that conditions each other with this back-to-back sealing overlaying structure, make single the rugged frequency characteristic of loud speaker obtain to a certain degree smooth-going.

Four frequency divisions, ten loudspeaker acoustic enclosures of Fig. 7-8 are still three high pitch loudspeakers that increased different size on the basis of Fig. 5, and low and woofer in audio amplifier, having increased, so just make that the overlaying structure back-to-back of sealing has become two pairs, to make in this audio amplifier like this, the distortion of woofer further reduced, also can help the bass reduction simultaneously and increase the radiant power of loud speaker.In order to make full use of the glittering and translucent physical characteristic of glass audio amplifier, in each above-mentioned audio amplifier, the color LED display can also be set.

Can clearly see by Fig. 6-8: can be provided with the sealed tube 7 that 1-2 only communicates with preceding case face in audio amplifier inside, sealing pipe pipe is available glass, also useful ceramics, metal or plastics.Each fixes a woofer at the two ends of sealed tube 7.If each fixes a pair of woofer and medium and low spectrum loudspeaker to two sealed tubes too, and they are overlaying structure back-to-back.

The present invention is because audio amplifier adopts glass, and not only the cost of raw material is low, and manufacture craft is simple, and elegant in appearance, and tonequality is pure, the fidelity height.

Claims (7)

1, a kind of crystal speaker is characterized in that: the casing of this audio amplifier is made by glass.

2, a kind of method of making above-mentioned crystal speaker, it is characterized in that: it both can adopt plate glass to form through bonding, the moulding process of useable glass is again earlier made one with the major part of casing, and then with other parts through bonding or form casing in the affixed mode of securing member.

3, crystal speaker according to claim 1 is characterized in that: the both available colourless transparent glass of this audio amplifier, and available again coloured glass, and also can lay felt and sound-absorbing material in the audio amplifier.

4, the method for manufacturing crystal speaker according to claim 2, it is characterized in that: the angle of cut place at plate glass establishes reinforcement, preceding case face adopts double glazing to be bonded, and be processed into the different loud speaker holddown groove of diameter with method for grinding respectively on about layer glass, perhaps preceding case face is at one deck different loud speaker holddown groove of diameter that is processed on glass.

5, crystal speaker according to claim 3, it is characterized in that: be provided with the sealed tube that 1-2 only communicates with preceding case face in the inside of audio amplifier, each fixes a woofer or medium and low spectrum loudspeaker at the two ends of sealed tube, and they are overlaying structure back-to-back.

6, the method for manufacturing crystal speaker according to claim 4, it is characterized in that: whole audio amplifier can be made of the 2-3 piece, promptly the preceding case face of audio amplifier and four sides are comprised the tank one-shot forming of raising one's voice, and the rear cabinet face is holed with bonding or mutual conjunction plane, with securing member these two parts are constituted whole casing again, perhaps four sides with front and back case face and an integral body constitute casing with above-mentioned consolidation method.

7, crystal speaker according to claim 5 is characterized in that: in the audio amplifier color LED display can be set.

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