CN2790082Y

CN2790082Y - Compound loudspeaker box

Info

Publication number: CN2790082Y
Application number: CN 200520058062
Authority: CN
Inventors: 贺惠梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-06
Filing date: 2005-05-06
Publication date: 2006-06-21
Anticipated expiration: 2015-05-06

Abstract

The utility model discloses a compound loudspeaker box which comprises a box (1) body, loudspeakers (2, 3, 4, 5) with different audio frequencies on the wall surface of the box body, an inverted tube (12) and a shielding hood (6) which is covered on the backs of the middle and high audio loudspeakers (3, 4, 5) and arranged on the inner wall surface of the box body (1). The wall board of the box body (1) is compounded into a whole by three layers of materials with different densities, wherein the outer layer is a basic plate layer (8), the inner layer is a glass plate layer (9), and a jelly layer (10) is arranged between the inner layer and the outer layer. Three kinds of materials with different hardness and different properties are integrated into the box body so as to eliminate the box shaking, decrease the standing wave, overcome the tone dyeing, and greatly boost the reduction degree, the purity and the sensitivity of the loudspeaker box. The compound loudspeaker box has the advantages of low comprehensive cost and graceful musical quality, and can push the field of loudspeaker boxes to develop into a higher level.

Description

Compound audio amplifier

Technical field

The utility model relates to stereo set, relates in particular to a kind of audio amplifier that adopts the multiple unit tube body structure to improve sound quality.

Background technology

Along with the raising of development of science and technology and people's living standard, stereo set enters people's live and work in a large number.People also make every effort to improve the quality of stereo set when continually developing the stereo set function.Sound dyeing is the more formidable difficult problem of audio amplifier always, also is the key issue that influences the sound equipment quality.The improvement of source of sound (DVD), loud speaker, wire rod (line), power amplifier is difficult to obviously to improve tonequality, and these technology have developed into certain skill level, temporarily is difficult to have breakthrough.So industry will be improved the quality of audio amplifier as the important means that breaks through the stereo set quality.The audio amplifier of existing higher class has and adopts log, aluminium alloy, plastic cement to make casing, though tonequality, outward appearance improve to some extent, there is no big breakthrough on the tonequality, and technology is complicated, and the production and operation cost is higher, is difficult to satisfy the high requirement of seeing and hearing enjoyment; Adopt concrete, glass, marble to make casing in addition, heavy frangible though tonequality is better, difficult, outward appearance is difficult, and is plain, and all obviously there is the problem of sound dyeing in the price height; Graphic arts ceramic making casing, though middle and high sound is better, outward appearance is beautiful, bass effect is relatively poor.Also have some high-grade audio amplifiers, famous and precious timber or building stones are emptied the making casing, tonequality is fabulous, but technology difficulty beyond imagination, quantity is few, and price is high.

The utility model content

The purpose of this utility model is to solve existing high-grade speaker production difficulty, obvious, the cost technical problems of high of sound dyeing phenomenon, and it is simple, moderate to propose a kind of making, and tonequality is fabulous, and outward appearance is beautiful, the high-quality speaker that tone-off dyes.

For addressing the above problem, the technical scheme that the utility model proposes is a kind of compound audio amplifier of structure, comprise casing, be located at the loud speaker and the phase-reversing tube of different audio frequency on the casing wall, be located at the cage at the middle and high audio tweeter of covering in of the described cabinet wall face back side, the wallboard of described casing is combined into one by the material of three layers of different densities, its skin is a circumferential lamella, and internal layer is a glass plies, is provided with a jelly layer between the inside and outside layer.

First embodiment of the present utility model, be provided with a division board in the described casing, this division board recedes and upper end and casing top wallboard leave the gap, and be fixed on casing biside plate and the front wallboard, the loud speaker of described different audio frequency is low, a high pitch loudspeaker of being located at described casing front upper.

Second embodiment of the present utility model, the loud speaker of described different audio frequency is the bass ultrathin loudspeaker of being located at the middle and high sound loud speaker of described casing front upper and being located at casing side plate bottom, laterally be provided with the glass support bar in the described lower box, the outer surface of casing biside plate bottom is respectively equipped with one deck stiffener.

The 3rd embodiment of the present utility model, described casing are last nowel independence split setting, and the loud speaker of different audio frequency is the woofer of being located at middle and high, the super high pitch loudspeaker in casing top box front and being located at casing nowel front; Be provided with a division board in the described casing nowel, and be fixed on the casing biside plate.

Described circumferential lamella can be the plank layer, also can be aluminum layer or plastic layer.

The periphery of the periphery of described interior woofer and/or phase-reversing tube or the inner surface of airtight casing be provided with jelly layer and acoustical cotton layer.

Described jelly layer can be a factice, also can be pitch prill or glass cement.

Casing extexine of the present utility model mainly adopts wooden structures, and outward appearance is easily processed, and the centre is the effect that the jelly layer plays sealing and absorption audio amplifier vibrational energy, also plays the effect of sound insulation in addition.Inwall is highdensity glass material structure, and its material density is big, hardness is big, and rapid sound pressure variations is difficult to cause glass vibration in the case, is kept apart by the factice layer of centre even if having also, passes to the vibration of appearance wall material again, and is just quite faint.The materials with different properties of three kinds of different hardness is integrated in one, shakes thereby eliminate case, reduces standing wave, overcomes sound dyeing, the reduction degree, degree of purity, the sensitivity that have improved audio amplifier greatly.Factice and glass cost are not high, and process easyly, do not influence the audio amplifier outward appearance again, and be harmless again to human body, but suitable obvious effect is being arranged aspect the sound equipment quality improving.This audio amplifier integrated cost is low, and the tone color grace, can promote the sound equipment field to higher level development.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is elaborated, wherein:

Fig. 1 and Fig. 2 are respectively front view and the cutaway views of the utility model first embodiment;

Fig. 3 and Fig. 4 are respectively front view and the cutaway views of the utility model second embodiment;

Fig. 5 is that Fig. 6 is respectively the front view and the cutaway view of the utility model the 3rd embodiment upper box;

Fig. 7 and Fig. 8 are respectively the front view and the cutaway views of the utility model the 3rd embodiment lower box.

Embodiment

Fig. 1 and Fig. 2 show the basic structure of the utility model first embodiment, described compound audio amplifier, comprise casing 1, be located at low, the

high pitch loudspeaker

2,4 of box body wall front upper, be located at the just basifacial phase-reversing tube 12 of box body wall, be located at the frequency divider 13 and the terminal box 14 on casing rear surface top; Also comprise the glass cage 6 that covers in high pitch loudspeaker 4 back sides of being located at casing 1 internal face, the high pitch that forms a sealing in this cover chamber A that works alone, other space forms the bass B of operating room in the casing.Also be provided with a glass division board 7 in the casing 1, this division board recedes and upper end and casing top wallboard leave the gap, and is fixed on casing 1 biside plate and the front wallboard.The wallboard of casing 1 is combined into one by the material of three layers of different densities, and its skin is a wood plies 8, and internal layer is a glass plies 9, is provided with a factice layer 10 between the inside and outside layer, and this factice layer can be separated wood plies and glass plies fully, and whole close in one.Wherein, wood plies is approximately 8 to 15 millimeters, and glass plies is approximately 4 to 10 millimeters, and the factice layer is approximately 5 to 15 millimeters, and glass cage 6 or glass division board 7 are 4 to 15 millimeters.The skin of casing 1 wallboard can also adopt aluminium sheet or plastic plate except that with the timber; Jelly between the inside and outside layer can also adopt other colloidal material except that adopting the factice material, as, pitch prill or glass cement etc.In order further to improve tonequality, also can increase at the periphery of the periphery of the inner surface woofer 2 of casing 1 and phase-reversing tube 12 factice layer and acoustical cotton layer (not shown) are set; For the smooth inadequately situation of wood plies 8 inner surfaces of casing 1, can brush one deck paint, attaching oil glue-line 10 and glassy layer 9 again at the inner surface of wood plies earlier.Above-mentioned A, operating room, two sound chambeies of B can allow two

loud speakers

2,4 draw close as far as possible, and keep apart and work alone without interruption, allow the performance of two loud speakers be sent out fully.For strengthening the medium and low frequency effect, the spy has been divided into resonant cavity D and paraphase chamber B with glass division board 7.

Fig. 3 and Fig. 4 show the basic structure of the utility model second embodiment, and the structure of its casing 1 is identical with first embodiment, all are to adopt three-layer composite structure.Different is: box sizes adopts laterally narrow and vertical dark structural design, and middle and high

sound loud speaker

3,4 each two top of being located at casing 1 front, and separate with cloche 6 sealing, the lower, transverse of casing is provided with glass support bar 15, adopt bass ultrathin loudspeaker 2, and be located at the bottom of casing 1 side plate, the outer surface of casing 1 biside plate bottom is respectively equipped with one deck stiffener 11, in the casing division board 7 can be set.It is in order to use the bigger ultrathin woofer 2 of bore as far as possible that casing 1 biside plate bottom is provided with one deck stiffener 11, and makes the casing outward appearance more steady generous.Separate medium-high frequency sound and bass with cloche 6, help breaking the negative effect that the inner parallel construction of audio amplifier is brought, allow characteristic separately bring into play incisively and vividly, play the effect of reinforcing casing simultaneously.Adopt 3 cun medium-high

frequency loud speaker

3,4, characteristics are that alt is clear and melodious bright, and the penetration power of its tonequality strengthens.Glass support bar 15 plays reinforcement effect, makes bass can keep stable sound field, clearly demarcated level and transient state performance.Because casing adopts compound making, its inside is that the glass structure outside is a wooden structures, and is middle by the factice shock insulation, has crisply during the sound that loud speaker sends is gentle, has in crisp gentlely, makes its tonequality more clear and melodious beautiful.

Fig. 5 to Fig. 8 shows the basic structure of the utility model the 3rd embodiment, and the structure of its casing 1 is identical with first embodiment, all is to adopt three-layer composite structure.Different is: casing 1 is provided with for last nowel independence split, and middle and high, super

high pitch loudspeaker

3,4,5 is located at the top box 01 positive wall of casing 1, the positive wall that woofer 2 is located at the nowel 02 of casing 1; Be provided with a glass division board 7 in the nowel 02, this division board 7 turns forward and the top and the bottom wall of top and bottom and nowel 02 leave the gap respectively, and is fixed on nowel 02 biside plate.The angle of inclination of division board 7 and upper-lower position can be adjusted as required.Glass division board 7 plays supporting box and breaks the planar structure negative effect of inner front and back, allows bass insult drop more simultaneously, and the transient state performance is better, and the amount sense is abundanter; High pitch loudspeaker 4 design of keeping to the side can make and listens the hearer and be in which orientation, and the sounding of music all is omnidirectional, has drawn the sound field degree of depth and presence wealthy.Separate certain interval at the rear surface of upper box 1 and installed a netted glass 16 additional, frequency divider 13 is installed in the spatia, attractive in appearance beautiful.Also can increase at the inner surface of top box 01 confined space factice layer and acoustical cotton layer (not shown) are set, so that further improve tonequality.

Claims

1, a kind of compound audio amplifier, comprise casing (1), be located at the loud speaker (2,3,4,5) and the phase-reversing tube (12) of different audio frequency on the casing wall, be located at the cage (6) that covers in middle and high audio tweeter (3,4, the 5) back side of described casing (1) internal face, it is characterized in that, the wallboard of described casing (1) is combined into one by the material of three layers of different densities, its skin is circumferential lamella (8), and internal layer is glass plies (9), is provided with a jelly layer (10) between the inside and outside layer.

2, compound audio amplifier as claimed in claim 1, it is characterized in that, be provided with a division board (7) in the described casing (1), this division board (7) recedes and upper end and casing (1) top wallboard leaves the gap, and be fixed on casing (1) biside plate and the front wallboard, the loud speaker of described different audio frequency is for being located at low, the high pitch loudspeaker (2,4) of described casing (1) front upper.

3, compound audio amplifier as claimed in claim 1, it is characterized in that, the loud speaker of described different audio frequency is the bass ultrathin loudspeaker (2) of being located at the middle and high sound loud speaker (3,4) of described casing (1) front upper and being located at casing (1) side plate bottom, described casing (1) laterally is provided with glass support bar (15) in the bottom, and the outer surface of casing (1) biside plate bottom is respectively equipped with one deck stiffener (11).

4, compound audio amplifier as claimed in claim 1, it is characterized in that, described casing (1) is a last nowel independence split setting, and the loud speaker of described different audio frequency is for being located at positive middle and high, the super high pitch loudspeaker (3,4,5) of casing top box (01) and being located at the woofer (2) in casing nowel (02) front; Be provided with a division board (7) in described casing (1) nowel, and be fixed on casing (1) biside plate.

5, as each described compound audio amplifier of claim 1 to 4, it is characterized in that described circumferential lamella (8) is plank layer, aluminum layer or plastic layer.

6, compound audio amplifier as claimed in claim 5 is characterized in that, the periphery of the periphery of described casing (1) inner surface woofer (2) and/or phase-reversing tube (12) or the inner surface of airtight casing (01) be provided with jelly layer (10) and acoustical cotton layer.

7, compound audio amplifier as claimed in claim 6 is characterized in that, described jelly layer (10) is factice, pitch prill or glass cement.