CN201167409Y - Integral 2.1 multifunctional hi-fi multiple sound unit - Google Patents

Abstract

The utility model discloses an integrated two-in-one multifunctional high-fidelity combined speaker cabinet comprising box bodies of a machine core cavity, an external bass cavity, an internal bass cavity, a left sound cavity and a right sound cavity which are separated by a plurality of partition boards and not mutually communicated, the external bass cavity and the internal cavity are separated by a fixed board which is fixedly provided with a bass speaker; the external bass cavity is composed of a buffer acoustic chamber and a resonance acoustic chamber which are mutually communicated, the resonance acoustic chamber is communicated with the outside through an airflow pipe; and the internal bass cavity is composed of a bass speaker containing chamber and a vibration buffer chamber which are mutually communicated. Compared with the prior art, the integrated two-in-one multifunctional high-fidelity combined speaker cabinet has compact and reasonable structure, small size, no need of complicated cable connection, convenient movement and excellent sound quality; in addition, a power supply module and a power amplifying module are arranged on the front and the back sides of the resonance acoustic chamber, and the heat radiation of a switch power supply and a power amplifying circuit can be carried out by utilizing the role of the airflow in the box bodies when in work.

Description

Integral type 2.1 multi-functional high-fidelity combination audio

Technical field

The utility model relates to the audio audio-visual equipment field, specifically a kind ofly collects the multi-functional high-fidelity combination audio that multi-functional movement, subwoofer and left and right sound channels loud speaker are one.

Background technology

At present, 2.1 common channel combinations sound equipments are to have the multi-functional combination player of a cover (energy DVD playing back, laser discs such as VCD, CD, have the FM/AM broadcast receiver, early stage machine also has deck, existing popular USB, card reader, iPod seat or the like of having), the combination of a pair of left and right sides audio amplifier and a subwoofer.This series products is the restriction low frequency dive deficiency that is subjected to the loud speaker bore for two audio amplifiers about remedying, on the basis of 2 channel combinations sound equipments, acquire the logical case of a replaying bass band again, this traditional class combination audio is perhaps because the reason of vibration effect combination player work during the audio amplifier sounding, be generally split-type structural, be that multi-functional combination player, left and right sides audio amplifier and subwoofer all are single minute body structure, some high-power combination audio is divided into two to three because of heat dissipation problem even with multi-functional combination player, for example power amplifier and FM/AM broadcast receiver is also constructed separately.The problem of 2.1 channel combinations sound equipments of this many structures is, very trouble is connected after the user buys, and make mistakes easily when connecting and cause system's cisco unity malfunction, if even have that the tone frequency channel wire phase place connects the risk that influences the voice playing effect on the contrary when connecting.Moreover area occupied was also bigger when 2.1 traditional channel combinations sound equipment whole systems were put, and because of it is many combinations, moved also extremely inconvenience.

Current society is that an amusement is supreme, the epoch that the Internet " is walked crosswise ".Everyone plays life well in the mode with oneself, uses the step of oneself to catch up with " fashion ", and office, bedroom, study all need the existing good tonequality of a cover, have grade again, use simple sound equipment.As everyone knows, reach the sound equipment of hi-fi effect, the selection of components and parts is most important! But outstanding voicefrequency circuit, high-quality loud speaker, the highly reliable power supply that matches, sound box reasonable in design all are outstanding acoustic bases.The tradition audio good multi-functional high-fidelity combination audio of 2.1 sound channels, its left and right acoustic channels audio amplifier and subwoofer audio amplifier volume are generally all bigger, especially with subwoofer for very.Very large casing materials are many certainly, from the angle of " energy-saving and emission-reduction ", though this class combination audio has had good tone color uneconomical.In addition, this traditional class combination audio adopts power transformer rectifying and wave-filtering power supply mostly, and this class power-efficient is low, and heat is big, and copper that transformer consumes, core material all is national material in short supply, is unfavorable for the production in enormous quantities of product.

The utility model content

Main purpose of the present utility model is to provide the integral type 2.1 multi-functional high-fidelity combination audio that a kind of compact conformation is reasonable, volume is small and exquisite, need not complicated line connection, be convenient to move.

Another purpose of the present utility model is to provide a kind of integral type 2.1 multi-functional high-fidelity combination audio that the effect of air-flow is dispelled the heat to Switching Power Supply and power amplifier in the casing can utilize work the time.

For realizing above-mentioned main purpose, the utility model provides a kind of integral type 2.1 multi-functional high-fidelity combination audio, comprise the casing that is separated into mutual disconnected movement chamber, supper bass chamber and left and right sound chamber by some dividing plates, be respectively arranged with multi-functional movement, subwoofer and left and right sound channels loud speaker in described movement chamber, supper bass chamber and the left and right sound chamber; Wherein, described supper bass chamber is separated into by gas flow tube by the subwoofer fixed head and is communicated with outside outer supper bass chamber and airtight interior supper bass chamber, and described subwoofer is fixed on this subwoofer fixed head in the mode in supper bass chamber outward; Described outer supper bass chamber is made up of buffering sound chamber that is interconnected and resonance sound chamber, and described gas flow tube is positioned at the resonance sound chamber; The supper bass chamber is made up of subwoofer accommodating chamber that is interconnected and Vibrant buffer chamber in described.

Because movement chamber, supper bass chamber and left and right sound chamber are formed in the same casing, the design in inside and outside two supper bass chambeies is adopted in the supper bass chamber, subwoofer adopts built-in installation, when installing, parts fully optimize the space that has utilized each cavity in the casing, compact conformation is reasonable, has reduced the casing volume to greatest extent under the prerequisite that reaches the theoretical value requirement.In addition, because the design of compound one, multi-functional movement and each loud speaker are installed in the same casing, and the connection between them can be finished at box house.The user is removed from install and the trouble that is connected, and need not change the connection of circuit when mobile at every turn, so use and move all very convenient.In addition, the interior supper bass chamber at subwoofer rear portion is fully airtight, can avoid the acoustic short circuit phenomenon of subwoofer like this.

Preferably, described movement chamber is positioned at the bottom in casing length direction centre position, and left and right sound chamber is positioned at the front portion of casing length direction both sides, and the supper bass chamber is positioned at the top in movement chamber.The outside framework of described casing is put together by base plate, top board, backboard, left plate, right plate, header board, left speaker supporting bracket and right speaker support plate; The dividing plate of box house comprises plate and subwoofer fixed head behind plate behind movement chamber left plate, movement chamber right plate, movement chamber top board, the left sound chamber, the right sound chamber, has the subwoofer installing hole on the subwoofer fixed head.Such layout is science relatively rationally, can obtain sympathetic response effect preferably, and tonequality is outstanding.

Because the subwoofer playback only covers narrower frequency range, the good key of this frequency range audio of resetting is that audio amplifier needs resonance, and the condition that produces covibration to be in box height, width or the depth any one be of a size of the integral multiple of sound wave half-wavelength, fact proved that the covibration of square casing is the most obvious.Therefore, as further improved technical scheme, described outer supper bass chamber forms " L " shape cavity, and its resonance sound chamber roughly is square, and its buffering sound chamber is elongated.Utilize elongated buffering sound chamber sound wave to be delivered in the resonance sound chamber that is square during subwoofer work, then the low frequency signal of resetting and needing by the gas flow tube in the resonance sound chamber.Owing to utilized the resonance of the resonance sound chamber generation that is square, strengthened the output of low frequency better.In addition, the buffering sound chamber is connected with " L " shape and communicates with the resonance sound chamber, and resonance sound chamber volume is slightly larger than buffering sound chamber volume, and like this, sound wave can vibrate sound wave buffering and reduction casing when the buffering sound chamber arrives the resonance sound chamber effectively.In addition, the volume of this resonance sound chamber is less than 1/7th of casing cumulative volume, and whole box body adopts nine lis of plates of high density (thickness that is sheet material is 9mm) to form, and has strengthened the resistance to overturning of casing, has reduced effectively by the resonance sound chamber to produce the casing vibration that resonance causes.

Further scheme is again, the connected entrance area between described subwoofer accommodating chamber and the Vibrant buffer chamber and the vibrating diaphragm swept area of described subwoofer are unanimous on the whole, the depth of subwoofer accommodating chamber and the ratio of width can reduce the resonance in the casing so effectively near golden section ratio 0.618; The volume of described Vibrant buffer chamber roughly is twice than the volume of subwoofer accommodating chamber, its objective is the vibration that brings to casing when effective buffering subwoofer is worked.

What be positioned at that the left and right sound chamber of casing both sides adopts is the closed cavity design of identical size, because integral type 2.1 multi-functional high-fidelity combination audio of the present utility model have subwoofer, so the left and right sound channels loud speaker allows to reduce the low frequency composition, but must guarantee the sound wave distortion not occur, so the air compliance in the left and right sound chamber is very important greater than the loudspeaker unit compliance.And, make the width in left and right sound chamber, highly, the ratio of depth is near golden section ratio, reduced so effectively left and right sound chamber in shake, the noise of having avoided case to shake and produced simultaneously, thereby guaranteed the playback of left and right sound chamber high-fidelity, simultaneously, the phenomenon of sound wave short circuit before and after the left and right sound channels loud speaker has been avoided in the airtight design in left and right sound chamber.

Further scheme is, the front of described casing removably is fixedly connected with the sound equipment panel, adopts dismountable connection can be convenient to the movement of inside is safeguarded; Described multi-functional movement comprises CD-ROM drive, decoder module and radio reception module, wherein CD-ROM drive is connected on the CD-ROM drive fixed mount of described sound equipment panel and casing before and after being fixed on, between this CD-ROM drive and CD-ROM drive fixed mount, be provided with the vibrationproof pad, to carry out vibration damping to CD-ROM drive, avoid the noise of CD-ROM drive when work revolution to pass to casing, the casing slight case that produced by the speaker operation vibration shakes and also can not be delivered on the CD-ROM drive and influence the operate as normal of CD-ROM drive simultaneously; Described decoder module and radio reception module are fixed on the backboard of described casing by fixed head, and are positioned at the rear portion in described movement chamber.Control for convenience and allow the user understand the operating state of combination audio, also have control interface and display screen on the sound equipment panel, key mode can be adopted in described control interface, also can adopt remote control mode.

For having realized another purpose of the present utility model, the both sides, front and back of described resonance sound chamber are provided with power module and power amplifier module, and one of them module is near the inner of described gas flow tube, and another module is near the connected entrance of resonance sound chamber and described buffering sound chamber.When the air-flow (sound wave) that forward vibration is produced when subwoofer is worked flows to the resonance sound chamber through the buffering sound chamber, reflex on the power module again after just flowing to power amplifier module earlier; In like manner, when reversal of vibrations produces " air-breathing " during subwoofer work, through the air-flow elder generation process power module that gas flow tube flows into, and then reflex to power amplifier module, effectively utilize the combination audio self working state like this and carried out comparatively ideal wind-force heat radiation.The position of above-mentioned power module and power amplifier module can exchange.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is done and to be described in further detail.

Fig. 1 is an overall appearance structural representation of the present utility model;

Fig. 2 is the box inner structure schematic diagram;

Fig. 3 is the box inner structure schematic diagram at another visual angle;

Fig. 4 is the explosive view of casing;

Fig. 5 is vertical view of the present utility model (top board is not shown);

Fig. 6 is sound equipment panel and guard and the schematic diagram that cooperates of casing part;

Fig. 7 is the assembling schematic diagram of CD-ROM drive and sound equipment panel;

Fig. 8 is the assembling schematic diagram of casing backboard and casing part;

Fig. 9 is the assembling schematic diagram of gas flow tube, radio reception module and power amplifier module and casing backboard;

Air-flow guiding schematic diagram one when Figure 10 is the utility model work;

Air-flow guiding schematic diagram two when Figure 11 is the utility model work.

Embodiment

Fig. 1 shows a kind of preferred implementation of the present utility model, it has a casing 1 that is cuboid, the center position in casing front is a sound equipment panel 2, adopts dismountable connected mode between this sound equipment panel 2 and the casing 1, so that sound equipment inside is safeguarded.Have control interface, various input/output interface, CD discrepancy door 21 and LCD display 22 etc. on the sound equipment panel 2, wherein, the control interface can comprise digital volume potentiometer knob, several direct election play buttons etc., input/output interface comprises USB interface, card reader interface, earphone interface etc., with user-friendly and control to greatest extent; LCD display 22 can show operating state of time, calendar, week, timed power on/off state and broadcast or the like, allows the user come into plain view.In conjunction with Fig. 6, the both sides in casing 1 front are provided with the guard 3 that corresponds respectively to the left and right sound channels loud speaker, fall into loud speaker to prevent dust.

Referring to Fig. 2, mutual disconnected movement chamber 4, outer supper bass chamber 5, interior supper bass chamber 6, left sound chamber 7 and right sound chamber 8 have been separated into by some dividing plates in the casing 1.Movement chamber 4 is positioned at the bottom in casing 1 length direction centre position, and runs through casing 1 basically, is used to hold the multi-functional movement that comprises CD-ROM drive, decoder module and radio reception module etc. in the movement chamber 4; Sound chamber 7, a left side and right sound chamber 8 lay respectively at the front portion of casing 1 length direction both sides; Outer supper bass chamber 5 and interior supper bass chamber 6 are positioned at the top in movement chamber 4.Such layout is science relatively rationally, can obtain sympathetic response effect preferably.In conjunction with Fig. 4 and Fig. 5, dividing plate between outer supper bass chamber 5 and the interior supper bass chamber 6 also is the fixed head 114 of subwoofer 9 simultaneously, and subwoofer 9 is fixed on this fixed head 114 in the mode in supper bass chamber 5 outward.Sound chamber 7, a left side and right sound chamber 8 have left speaker installing hole 71 and right loud speaker installing hole 81 on the casing front.

Referring to Fig. 3, " L " shape cavity that outer supper bass chamber 5 is made up of buffering sound chamber 51 that is interconnected and resonance sound chamber 52, its buffering sound chamber 51 is elongated, and its resonance sound chamber 52 roughly is square, is provided with the gas flow tube 53 that is in communication with the outside in it.Interior supper bass chamber 6 is made up of subwoofer accommodating chamber 61 that is interconnected and Vibrant buffer chamber 62.

Referring to Fig. 4, the outside framework of casing 1 is put together by base plate 101, top board 102, backboard 103, left plate 104, right plate 105, header board 106, left speaker supporting bracket 107 and right speaker support plate 108; Inner dividing plate comprises plate 113 and subwoofer fixed head 114 behind plate 112 behind movement chamber left plate 109, movement chamber right plate 110, movement chamber top board 111, the left sound chamber, the right sound chamber, has subwoofer installing hole 115 on the subwoofer fixed head 114.Wherein, the first half of base plate 101 both sides constitutes the bottom surface in left sound chamber 7 and right sound chamber 8 respectively, the first half of left plate 104 and right plate 105 also constitutes the sidewall in left sound chamber 7 and right sound chamber 8 simultaneously respectively, movement chamber left plate 109 and movement chamber right plate 110 also constitute another sidewall in left sound chamber 7 and right sound chamber 8 simultaneously respectively, plate 112 also is simultaneously the dividing plate between left sound chamber 7 and the subwoofer accommodating chamber 61 behind the sound chamber, a left side, and plate 113 also is simultaneously the dividing plate between right sound chamber 8 and the resonance sound chamber 52 behind the right sound chamber.

Referring to Fig. 5, utilize buffering sound chamber 51 sound wave to be delivered in the resonance sound chamber 52 during subwoofer 9 work, then the low frequency signal of resetting and needing by the gas flow tube in the resonance sound chamber 52 53 through connected entrance 54.Owing to utilized the resonance of resonance sound chamber 52 generations that are square, strengthened the output of low frequency better.In addition, buffering sound chamber 51 is connected with " L " shape and communicates with resonance sound chamber 52, and resonance sound chamber 52 volumes are slightly larger than buffering sound chamber 51 volumes, and like this, sound wave can vibrate sound wave buffering and reduction casing when buffering sound chamber 51 arrives resonance sound chambers 52 effectively.In addition, the volume of this resonance sound chamber 52 is less than 1/7th of casing cumulative volume, and whole box body 1 adopts nine lis of plates of high density (thickness that is sheet material is 9mm) to form, and has strengthened the resistance to overturning of casing, can effectively reduce because resonance sound chamber 52 produces the casing vibration that resonance causes.

Continuation is referring to Fig. 5, and interior supper bass chamber 6 is complete airtight cavity, can avoid the acoustic short circuit phenomenon of subwoofer 9 like this.Connected entrance 63 areas between subwoofer accommodating chamber 61 and the Vibrant buffer chamber 62 and the vibrating diaphragm swept area of subwoofer 9 are unanimous on the whole, the depth of subwoofer accommodating chamber 61 and the ratio of width can effectively reduce the resonance in the casing like this near golden section ratio 0.618; The volume of Vibrant buffer chamber 62 roughly is twice than the volume of subwoofer accommodating chamber 61, the vibration that brings to casing in the time of can effectively cushioning subwoofer 9 work.

Again referring to Fig. 5, left channel loudspeaker 10 and right channel loudspeaker 11 are separately positioned in left sound chamber 7 and the right sound chamber 8, sound chamber 7, a left side is the closed cavity design of identical size with 8 employings of right sound chamber, can avoid 10, the 11 front and back sound wave short circuits of left and right sound channels loud speaker; And, their width, highly, the ratio of depth is near golden section ratio, shakes in can effectively reducing like this, the noise of having avoided case to shake and produced simultaneously is to guarantee the high-fidelity playback in left sound chamber 7 and right sound chamber 8.

Referring to Fig. 6 and Fig. 7, CD-ROM drive 12 is fixed on the CD-ROM drive fixed mount 13, these CD-ROM drive fixed mount 13 front and back are connected in sound equipment panel 2 and casing 1 by fixed screw respectively, between CD-ROM drive 12 and CD-ROM drive fixed mount 13, be provided with vibration-proof rubber pad 14, carry out vibration damping for CD-ROM drive 12, the noise of revolution is passed to casing 1 when avoiding CD-ROM drive 12 work, and the casing 1 slight case that produced by the speaker operation vibration shakes and also can not be delivered on the CD-ROM drive 12 and influence the operate as normal of CD-ROM drive 12 simultaneously.During assembling, earlier CD-ROM drive fixed mount 13 is assembled on the sound equipment panel 2, the correspondence position on CD-ROM drive fixed mount 13 is loaded onto four 3mm vibration-proof rubber pads 14 then, utilizes fixedly CD-ROM drive 12 of screw.And then as shown in Figure 6, the sound equipment panel 2 that assembles CD-ROM drive 12 is pushed movement chamber 4, and utilize screw that the other end of CD-ROM drive fixed mount 13 is connected on the casing 1, utilize screw that sound equipment panel 2 is fixed to casing 1 front at last.

Referring to Fig. 8, decoder module 15 and radio reception module 16 are fixed on the backboard 103 of casing by fixed head 17, and are positioned at the rear portion in movement chamber 4.As shown in Figure 9, during assembling, earlier gas flow tube 53 is assembled to the correspondence position of backboard 103, then decoder module 15 and radio reception module 16 are assembled on the fixed head 17, again fixed head 17 is fixed to the correspondence position of casing backboard 103, the casing backboard 103 that will assemble all parts at last is assembled to casing 1 rear portion, and it is correct, firm to guarantee that all lines connect, and utilizes screw to be fixed on the casing 1.Except that gas flow tube 53 had been installed, the power interface of combination audio and one group of AUX audio frequency input and necessary video output interface also were installed in herein, can greatly expand the function of this combination audio on the casing backboard 103.

Referring to Figure 10,11 and Fig. 5, the both sides, front and back of resonance sound chamber 52 are provided with power module and power amplifier module, and power module is near the inner of gas flow tube 53, power amplifier module near resonance sound chamber 52 with cushion sound chamber 51 be communicated with 54.The air-flow (sound wave) that the forward vibration is produced when subwoofer 9 work reflexes on the power module after just flowing to power amplifier module earlier when buffering sound chamber 51 flows to resonance sound chambers 52 again; In like manner, when reversal of vibrations produces " air-breathing " during subwoofer 9 work, through the air-flow elder generation process power module that gas flow tube 53 flows into, and then reflex to power amplifier module, effectively utilize the combination audio self working state like this and carried out comparatively ideal wind-force heat radiation.

Claims (10)

1, integral type 2.1 multi-functional high-fidelity combination audio comprise

One casing (1) is separated into mutual disconnected movement chamber (4), supper bass chamber (5,6) and left and right sound chamber (7,8) by some dividing plates;

Be respectively arranged with multi-functional movement, subwoofer (9) and left and right sound channels loud speaker (10,11) in described movement chamber (4), supper bass chamber (5,6) and left and right sound chamber (7,8);

It is characterized in that:

Described supper bass chamber (5,6) is separated into by gas flow tube (53) by subwoofer fixed head (114) and is communicated with outside outer supper bass chamber (5) and airtight interior supper bass chamber (6), and described subwoofer (9) is fixed on this subwoofer fixed head (114) in the mode of supper bass chamber (5) outward;

Described outer supper bass chamber (5) is made up of buffering sound chamber (51) that is interconnected and resonance sound chamber (52), and described gas flow tube (53) is positioned at this resonance sound chamber (52);

Supper bass chamber (6) is made up of the subwoofer accommodating chamber (61) that is interconnected and Vibrant buffer chamber (62) in described.

2, integral type 2.1 multi-functional high-fidelity combination audio according to claim 1 is characterized in that:

Described movement chamber (4) is positioned at the bottom in casing (1) length direction centre position, and left and right sound chamber (7,8) are positioned at the front portion of casing (1) length direction both sides, and supper bass chamber (5,6) are positioned at the top of movement chamber (4).

3, integral type 2.1 multi-functional high-fidelity combination audio according to claim 2 is characterized in that:

The outside framework of described casing (1) is put together by base plate (101), top board (102), backboard (103), left plate (104), right plate (105), header board (106), left speaker supporting bracket (107) and right speaker support plate (108); The inner dividing plate of casing (1) comprises plate (113) and subwoofer fixed head (114) behind plate (112) behind movement chamber left plate (109), movement chamber right plate (110), movement chamber top board (111), the left sound chamber, the right sound chamber, has subwoofer installing hole (115) on the subwoofer fixed head (114).

4, according to each described integral type 2.1 multi-functional high-fidelity combination audio of claim 1 to 3, it is characterized in that:

Described outer supper bass chamber (5) is " L " shape cavity, and its buffering sound chamber (51) is elongated, and its resonance sound chamber (52) roughly is square.

5, according to each described integral type 2.1 multi-functional high-fidelity combination audio of claim 1 to 3, it is characterized in that:

Connected entrance (63) area between described subwoofer accommodating chamber (61) and Vibrant buffer chamber (62) and the vibrating diaphragm swept area of described subwoofer (9) are unanimous on the whole;

The depth of described subwoofer accommodating chamber (61) and the ratio of width are near golden section ratio;

The volume of described Vibrant buffer chamber (62) roughly is twice than the volume of subwoofer accommodating chamber (61).

6, according to each described integral type 2.1 multi-functional high-fidelity combination audio of claim 1 to 3, it is characterized in that:

Described left sound chamber (7) and right sound chamber (8) are airtight cavity.

7, according to each described integral type 2.1 multi-functional high-fidelity combination audio of claim 1 to 3, it is characterized in that:

The front of described casing (1) removably is fixedly connected with sound equipment panel (2);

Described multi-functional movement comprises CD-ROM drive (12), decoder module (15) and radio reception module (16);

Be connected on the CD-ROM drive fixed mount (13) of described sound equipment panel (2) and casing (1) before and after described CD-ROM drive (12) is fixed on, between this CD-ROM drive (12) and CD-ROM drive fixed mount (13), be provided with vibrationproof pad (14).

8, according to the described integral type 2.1 multi-functional high-fidelity combination audio of claim 7, it is characterized in that:

Have control interface and display screen (22) on the described sound equipment panel (2).

9, integral type 2.1 multi-functional high-fidelity combination audio according to claim 7 is characterized in that:

Described decoder module (15) and radio reception module (16) are fixed on the backboard (103) of described casing (1) by fixed head (17), and are positioned at the rear portion in described movement chamber (4).

10, according to each described integral type 2.1 multi-functional high-fidelity combination audio of claim 1 to 3, it is characterized in that:

The both sides, front and back of described resonance sound chamber (52) also are provided with power module and power amplifier module, and one of them module is near the inner of described gas flow tube (53), and another module is near the connected entrance (54) of resonance sound chamber (52) with described buffering sound chamber (51).

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