CN205946124U

CN205946124U - Loundspeaker -box structure

Info

Publication number: CN205946124U
Application number: CN201620920020.5U
Authority: CN
Inventors: 张健
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-22
Filing date: 2016-08-22
Publication date: 2017-02-08
Anticipated expiration: 2026-08-22

Abstract

The utility model provides a loundspeaker -box structure belongs to music playback devices technical field, include: audio amplifier main part and speaker main part, the audio amplifier main part includes the front panel, goes up backup pad, rear panel and under bracing seat, the front panel left and right sides is provided with two collateral branch faggings, the rear panel sets up two on the collateral branch fagging. The utility model discloses under the circumstances of the same sound source, equipment, wire rod, the same volume than traditional paraphase formula, labyrinth, complete frequently, the sound reduction degree of closed audio amplifier is good, clear high, rhythm is obvious, the volume is big, the sound field is surge, stereo effect is good, effectual efficiency and the working life who has improved speaker, amplifier device wire rod, the without hindrance formula exhaust stream class percent of pass height of loseing one's temper to the box resonance that the conflict of rhythm air current caused around preventing to be caused by the air current bounce -back, the effectual resonance noise that has reduced the box to reach the sound effect of high -fidelity audio amplifier.

Description

A kind of loudspeaker box structure

Technical field

The utility model is related to belong to music player devices technical field, especially relates to a kind of loudspeaker box structure.

Background technology

Audio amplifier is the terminal of whole sound system, and its effect is that audio frequency electric energy is converted into corresponding acoustic energy, and its spoke It is mapped to space to go.

It is the extremely important part of sound system, because it is responsible for, and electric signal is transformed into acoustical signal for people's Ear directly listens to so one mission critical, and it will directly be come into contacts with the sense of hearing of people, and the sense of hearing of people is very sensitive, And to the tone color of complex sound, there is very strong resolving ability.

Because human ear exactly evaluates the most important standard of a sound system tonequality quality to the subjective feeling of sound, because This is it is believed that the performance height of audio amplifier is to play key effect to the playing quality of a sound system.

Intermodulation distortion, it is understood that loudspeaker is a nonlinear device, during playback sound source, due to magnetic gap The nonlinear deformation factor of magnetic field bump and support system, can produce the new frequency content not having in a kind of original signal, Therefore when new frequency signal is added on loudspeaker together with primary frequency signal, can modulate again and produce another kind of new frequency. In addition, music signal is not the sine wave signal of single audio frequency, but multichannel audio signal.

When the signal of two different frequencies is simultaneously entered loudspeaker, because depositing of non-linear factor is big, two signals can be made to adjust System, produces new frequency signal, therefore in the sound reproduction frequency of loudspeaker, in addition to original signal, have also appeared and do not have in two original signals The new frequency having, this distortion is intermodulation distortion.What it mainly affected is pitch.

Transient distortion, the transient distortion of sound box system, refer to a kind of biography that the mass inertia of loudspeaker vibroseis causes Defeated wave distortion.Because loudspeaker has certain mass inertia, therefore cone vibrations do not catch up with the electric signal of instantaneous variation, make Acoustical reproduction produces the distortion of transmitted waveform, leads to the change of frequency spectrum and tone color.The quality of this index, in sound box system and raising one's voice It is particularly important in device unit, directly affect is the reducing degree of tonequality and tone color.

In the speaker body in audio amplifier in addition to having case forward pass sound wave, the rear transaudient ripple that also inwardly sends, and this Transaudient ripple afterwards, actually a kind of fairly cumbersome problem, afterwards transaudient ripple not only can cause diffraction phenomenon in casing, and The resonance of casing also can be caused, not only have a strong impact on tonequality, but also unsweet sound phenomenon can be brought.

The audio amplifier unobstructed employing closed design of traditional design, uses elimination policy for this rear transaudient ripple, close Close casing when making with adjustment it will usually fill up the sound-absorbing material of various frequencies in casing, not only increased tank-volumes, And the rear transaudient ripple of speaker body is fully absorbed, waste the power of audio amplifier.

With the raising of people's living standard, the development of science and technology, people improve constantly to the quality listening music, present market On also have the equipment of good sound equipment specialty, tonequality is good, effect rod, but to be professional music equipment price high for that, and principle is complicated； It is not that each common music fan can consume, and the sound of the cheap music player devices of some on market Matter is poor, and result of broadcast is not fine.

Utility model content

The purpose of this utility model is to provide a kind of loudspeaker box structure, to solve the audio of audio amplifier present in prior art Bad, the serious technical problem of distortion.

A kind of loudspeaker box structure that the utility model provides, including：Sound box body and speaker body；Described sound box body bag Include front panel, upper backup pad, rear board and lower support base；The described front panel left and right sides is provided with two collateral faggings, institute State rear board to be arranged on two described collateral faggings；

Described upper backup pad rear and front end is separately positioned on front panel and rear board, the top of two described collateral faggings It is arranged on the left and right sides of upper backup pad；

The front end of described lower support base arranges on described front panel or described lower support base rear end is arranged on after described On plate, two described collateral faggings are arranged on the left and right sides of described lower support base, described front panel, upper backup pad, rear board, Lower support base and two collateral faggings form an inner chamber；

It is provided with four piece of first graded plate in described inner chamber, described first classification front edge of board is arranged on front panel, four Individual described first graded plate joins end to end and surrounds the first resonator；Formed between described first graded plate and described rear board and connect First resonator and the first gas port of inner chamber；

On described speaker body plate forward-mounted, and it is located in described first resonator；

Venthole with inner space is provided with described sound box body.

Further, it is provided with four the second graded plates between described front panel and described rear board, four described Two graded plates join end to end outside described first graded plate and surround the second resonator；Near front panel one end on the second graded plate It is provided with the second gas port of communication with cavity and the second resonator.

Further, it is provided with four the 3rd graded plates between described front panel and described rear board, four described Three graded plates join end to end outside described second graded plate and surround the 3rd resonator；Away from front panel one end on the 3rd graded plate It is provided with the 3rd gas port of communication with cavity and the 3rd resonator.

Further, it is provided with four the 4th graded plates between described front panel and described rear board, four described Four graded plates join end to end outside described 3rd graded plate and surround the 4th resonator；Near front panel one end on the 4th graded plate It is provided with the 4th gas port of communication with cavity and the 4th resonator.

Further, described first graded plate, described second graded plate, described 3rd graded plate and described 4th graded plate It is square.

Further, two neighboring described first graded plate is at a right angle is connected；Two neighboring described second graded plate Cheng Zhi Angle is connected；Two neighboring described 3rd graded plate is at a right angle to be connected；Two neighboring described 4th graded plate is at a right angle to be connected.

Further, described first gas port, described second gas port, described 3rd gas port and described 4th gas port Diameter is 3cm.

Further, there is interval between described front panel lower end and described lower support base, two described collateral faggings, described Front panel and described lower support base formed on front side of described sound box body described venthole or described rear board lower end with described There is interval, two described collateral faggings, rear board and lower support base form institute on rear side of described sound box body between lower support base State venthole.

Further, it is provided with bracing frame below described lower support base；Described sound box body is provided with placement raise one's voice Second cavity volume of device main body.

Further, it is provided with space bar in described second cavity volume, described second cavity volume is separated into by described space bar Three are used for accommodating the 3rd cavity volume of speaker body.

The utility model is in the case of same audio source, equipment, wire rod, identical volume than traditional inverted phase type, labyrinth type, complete Frequently, the sound-reducing degree of closed audio amplifier is good, clearly high, and rhythm substantially, gives great volume, sound field is surge, stereophonic effect is good, effectively Improve loudspeaker, the efficiency of power amplifying device wire rod and working life, no to cause air flow through rate high for resistive exhaust stream, thus anti- Only the casing that before and after's rhythm air-flow conflict causes is caused to resonate by air-flow bounce-back；It is effectively reduced the resonance noise of casing, from And reach the sound effect of Hi-Fi sound-box.

A kind of loudspeaker box structure that compared with prior art the utility model provides has the advantage that：

1st, better than the sound-reducing degree of traditional audio amplifier, tone color is clear, and resonating effect is good；

2nd, air-flow echo and rebound effect be clearly；Air-flow percent of pass is high, thus preventing air-flow bounce-back from saving before and after causing Play conflict, effectively raise power and its working life of speaker body；

3rd, sound field is full, and than traditional audio amplifier, in the case of same volume, sound field is bigger, thus reducing the loss of power amplifier, little Also preferable effect can be reached during volume, also relatively reduce the use volume of audio amplifier.

Brief description

In order to be illustrated more clearly that the utility model specific embodiment or technical scheme of the prior art, below will be right In specific embodiment or description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, below describe In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

A kind of structural representation of loudspeaker box structure that Fig. 1 provides for the utility model embodiment；

A kind of structural representation of loudspeaker box structure that Fig. 2 provides for another embodiment of the utility model；

A kind of structural representation of loudspeaker box structure that Fig. 3 provides for the another embodiment of the utility model；

A kind of structural representation of loudspeaker box structure that Fig. 4 provides for the utility model another embodiment；

A kind of internal structure schematic diagram of loudspeaker box structure that Fig. 5 provides for Fig. 3；

A kind of two divided-frequency audio amplifier internal structure schematic diagram of loudspeaker box structure that Fig. 6 provides for the utility model embodiment；

A kind of three-way speakers internal structure schematic diagram of loudspeaker box structure that Fig. 7 provides for the utility model embodiment.

Reference：

1- front panel；2- rear board；3- upper backup pad；

Support base under 4-；5- inner chamber；6- installing hole；

7- first graded plate；8- first gas port；9- venthole；

10- first resonator；11- second graded plate；12- second resonator；

13- second gas port；14- the 3rd graded plate；15- the 3rd resonator；

16- the 3rd gas port；17- the 4th graded plate；18- the 4th resonator；

19- the 4th gas port；20- bracing frame, 21- second cavity volume；

22- the 3rd cavity volume.

Specific embodiment

Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described it is clear that described Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, this The every other embodiment that field those of ordinary skill is obtained under the premise of not making creative work, broadly falls into this practicality Novel protected scope.

In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term Directly ", the orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, are only For the ease of description the utility model with simplify description, rather than instruction or the hint device of indication or element must have specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or hint relative importance.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning in the utility model for the language.

A kind of structural representation of loudspeaker box structure that Fig. 1 provides for the utility model embodiment；As shown in figure 1, this enforcement A kind of loudspeaker box structure that example provides, including：Sound box body and speaker body；Sound box body include front panel 1, upper backup pad 3, Rear board 2 and lower support base 4；Front panel 1 left and right sides is provided with two collateral faggings, rear board 2 be arranged on two collateral On fagging；

Upper backup pad 3 rear and front end is separately positioned on front panel 1 and rear board 2, the top setting of two collateral faggings The left and right sides in upper backup pad 3；

The front end of lower support base 4 arranges on front panel 1 or lower support base 4 rear end is arranged on rear board 2, and two collateral Fagging is arranged on the left and right sides of lower support base 4, front panel 1, upper backup pad 3, rear board 2, lower support base 4 and two collateral supports Plate shape becomes an inner chamber 5；

It is provided with four piece of first graded plate 7 in inner chamber 5, the first graded plate 7 front end is arranged on front panel 1, four One graded plate 7 joins end to end and surrounds the first resonator 10；Formed between first graded plate 7 and rear board 2 and connect the first resonator 10 and the first gas port 8 of inner chamber 5；

On speaker body plate forward-mounted 1, and it is located in the first resonator 10；

The venthole 9 being connected with inner chamber 5 is provided with sound box body.

In the present embodiment, there is the inner chamber 5 of a hollow in sound box body；Have in inner chamber 5 and enclosed by four the first division boards The first resonator 10 becoming, installing hole 6 is connected with the first resonator 10；Venthole 9 is provided with sound box body；Venthole 9 Can be arranged on the front panel 1 of sound box body it is also possible to be arranged on the rear board 2 of sound box body；Venthole 9 may also be Front panel 1 upper and lower ends are provided with it is also possible to only arrange the lower end of venthole 9 or front panel 1 in the upper end of front panel 1 Setting venthole 9；Same on plate 2 below in plate 2 upper and lower ends below, venthole 9 is set, or in plate 2 upper end below or Lower end arranges a venthole 9.

After speaker body sends sound, after sympathetic response in the first resonator 10, gentle through sound wave by the first gas port 8 Stream is delivered in inner chamber 5, then discharges air-flow through venthole 9；So current rate can be reduced, thus effectively releasing The noise that the casing vibration being caused by air-flow vibration is taken out of.

A kind of structural representation of loudspeaker box structure that Fig. 2 provides for another embodiment of the utility model；As shown in Fig. 2 entering One step ground, is provided with four the second graded plates 11, four the second graded plates 11 are at first point between front panel 1 and rear board 2 Join end to end outside step 7 and surround the second resonator 12；Second graded plate 11 is provided with communication with cavity near front panel 1 one end 5 and second resonator 12 the second gas port 13.

On above-described embodiment basis, in the present embodiment, the second graded plate 11 surrounds one bigger second altogether Tymapanum 12, the first graded plate 7 surrounds the first resonator 10 in the second resonator 12, and sound produces altogether in the first resonator 10 After ring, by the first gas port 8, air-flow and sound wave are transferred to the second resonator 12, after retaining again and amplifying, lead through second Pore 13 is delivered to inner chamber 5, discharges through venthole 9；Air-flow air-flow after the first resonator 10 and the second resonator 12 is strong Degree reduces, thus effectively releasing the noise that the casing vibration being caused by air-flow vibration is taken out of.

A kind of structural representation of loudspeaker box structure that Fig. 3 provides for the another embodiment of the utility model；As shown in figure 3, entering One step ground, is provided with four the 3rd graded plates 14, four the 3rd graded plates 14 are at second point between front panel 1 and rear board 2 Join end to end outside step 11 and surround the 3rd resonator 15；3rd graded plate 14 is provided with connection away from front panel 1 one end Chamber 5 and the 3rd gas port 16 of the 3rd resonator 15.

On above-described embodiment basis, in the present embodiment, the 3rd graded plate 14 surrounds ratio second resonator 12 the 3rd bigger resonators 15, have the second resonator 12 that the second graded plate 11 surrounds in the 3rd resonator 15；Sound exists After empathizing in first resonator 10, by the first gas port 8, air-flow and sound wave are transferred to the second resonator 12, protect again After staying and amplifying, the 3rd resonator 15 is delivered to by the second gas port 13, after the 3rd resonator 15 sympathetic response, leads through the 3rd Pore 16 is delivered to inner chamber 5, discharges through venthole 9；Air-flow is through the first resonator 10, the second resonator 12 and the 3rd sympathetic response Behind chamber 15, current rate reduces, thus effectively releasing the noise that the casing vibration being caused by air-flow vibration is taken out of.

A kind of structural representation of loudspeaker box structure that Fig. 4 provides for the utility model another embodiment；As shown in figure 4, entering One step ground, is provided with four the 4th graded plates 17, four the 4th graded plates 17 are at the 3rd point between front panel 1 and rear board 2 Join end to end outside step 14 and surround the 4th resonator 18；4th graded plate 17 is provided with connection near front panel 1 one end Chamber 5 and the 4th gas port 19 of the 4th resonator 18.

In the present embodiment, the 4th graded plate 17 surrounds a 4th bigger resonator 18 of ratio the 3rd resonator 15, There is the 3rd resonator 15 that the 3rd graded plate 14 surrounds, sound is empathized in the first resonator 10 in 4th resonator 18 Afterwards, by the first gas port 8, air-flow and sound wave are transferred to the second resonator 12, after retaining again and amplifying, by the second air guide Hole 13 is delivered to the 3rd resonator 15, after the 3rd resonator 15 sympathetic response, by by the 3rd air guide on the 3rd graded plate 14 Hole 16 is delivered in the 4th resonator 18, after the 4th resonator 18 sympathetic response, is delivered to inner chamber 5 by the 4th gas port 19, then Discharge through venthole 9；Air-flow is through the first resonator 10, the second resonator 12, the 3rd resonator 15 and the 4th resonator 18 Current rate reduces afterwards, thus effectively releasing the noise that the casing vibration being caused by air-flow vibration is taken out of.

Further, the first graded plate 7, the second graded plate 11, the 3rd graded plate 14 and the 4th graded plate 17 are pros Shape.

On above-described embodiment basis, the first graded plate 7, the second graded plate 11, the 3rd graded plate 14 and the 4th point Step 17 is square plate；Between 4th graded plate 17 and the 3rd graded plate 14, the 3rd graded plate 14 and the second graded plate 11 Between, the distance between the second graded plate 11 and first graded plate 7 equal.

Further, two neighboring first graded plate 7 is at a right angle connected；Two neighboring second graded plate 11 phase at a right angle Even；Two neighboring 3rd graded plate 14 is at a right angle connected；Two neighboring 4th graded plate 17 is at a right angle connected.

Further, the first gas port 8, the second gas port 13, the 3rd gas port 16 and the 4th gas port 19 diameter are 3cm.

A kind of internal structure schematic diagram of loudspeaker box structure that Fig. 5 provides for Fig. 3, as shown in figure 5, further, lower support base 4 Lower section is provided with bracing frame 20.

In order to increase the length of whole sound box body, a bracing frame 20 is set below lower support base 4, it can be made to go out Pore 9, away from ground.

Further, there is interval between front panel 1 lower end and lower support base 4, two collateral faggings, front panel 1 and lower Support seat 4 forms venthole 9 on front side of sound box body.Or there is interval below between plate 2 lower end and lower support base 4, two sides Gripper shoe, rear board 2 and lower support base 4 form venthole 9 on rear side of sound box body.

Further, the distance between adjacent described first graded plate 7 and described second graded plate 11, adjacent described The distance between second graded plate 11 and described 3rd graded plate 14 and adjacent described 3rd graded plate 14 with described 4th point The distance between step 17 is equal.

A kind of two divided-frequency audio amplifier internal structure schematic diagram of loudspeaker box structure that Fig. 6 provides for the utility model embodiment；Enter One step ground, is provided with bracing frame 20 below described lower support base 4；Described sound box body is provided with and places speaker body Second cavity volume 21.

In the present embodiment, sound box body upper end is provided with the second cavity volume 21, loudspeaker is set in the second cavity volume 21 , so as to sound box body forms two divided-frequency audio amplifier, so middle bass supports loudspeaker and high pitch loudspeaker can distinguish, shape for main body Become sound field effect and tonequality aspect have the characteristics that very good.

A kind of three-way speakers internal structure schematic diagram of loudspeaker box structure that Fig. 7 provides for the utility model embodiment.Enter One step ground, is provided with space bar, described second cavity volume 21 is separated into three use by described space bar in described second cavity volume 21 In the 3rd cavity volume 22 accommodating speaker body.

In the present embodiment, the space bar of the second cavity volume 21, the second cavity volume 21 is divided into three the 3rd cavity volumes 22, the 3rd In cavity volume 22, it is provided with Squawker in the 3rd middle cavity volume 22, in the 3rd cavity volume 22 of both sides, is provided with high pitch Loudspeaker, the sound field effect so being formed and tonequality are convenient all good than the effect of two divided-frequency.

Further, described sound box body is wooden structures.

Sound box body adopts wooden structures, compared with plastics and metal audio amplifier, the advantage of wooden acoustic box be density high and Playback effect is good, the performance of sound box body Effect of Materials audio amplifier, and the density of the material of the shell of sound box body is bigger, sends sound When the produced vibration of casing less, particularly the active audio amplifier with high power amplifier is even more so, and such sound is permissible More really reduced.

Operation principle of the present utility model is the music that speaker body plays out, and produces former sound in the first resonator 10 Color frequency response, is empathized and is vented by the second resonator 12, equal to the effect expanding sound field with frequency, then through the 3rd resonator 15 is overlapping again, after resilience after inner chamber 5 sympathetic response, then discharge from venthole 9；The tone color of the music so play is clear, altogether Ring effect is good, and sound is more full.

Finally it should be noted that：Various embodiments above is only in order to illustrating the technical solution of the utility model, rather than it is limited System；Although being described in detail to the utility model with reference to foregoing embodiments, those of ordinary skill in the art should Understand：It still can be modified to the technical scheme described in foregoing embodiments, or to wherein some or all of Technical characteristic carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this practicality new The scope of type each embodiment technical scheme.

Claims

1. a kind of loudspeaker box structure is it is characterised in that include：Sound box body and speaker body；Before described sound box body includes Plate, upper backup pad, rear board and lower support base；The described front panel left and right sides is provided with two collateral faggings, described after Plate is arranged on two described collateral faggings；

Described upper backup pad rear and front end is separately positioned on front panel and rear board, the top setting of two described collateral faggings The left and right sides in upper backup pad；

The front end of described lower support base arranges on described front panel or described lower support base rear end is arranged on described rear board, Two described collateral faggings are arranged on the left and right sides of described lower support base, described front panel, upper backup pad, rear board, lower Support seat and two collateral faggings form an inner chamber；

It is provided with four piece of first graded plate in described inner chamber, described first classification front edge of board is arranged on front panel, four institutes State the first graded plate and join end to end and surround the first resonator；Formed between described first graded plate and described rear board and connect first Resonator and the first gas port of inner chamber；

Venthole with inner space is provided with described sound box body.

2. loudspeaker box structure according to claim 1 is it is characterised in that arrange between described front panel and described rear board There are four the second graded plates, four described second graded plates join end to end outside described first graded plate and surround the second resonator； Second gas port of communication with cavity and the second resonator is provided near front panel one end on the second graded plate.

3. loudspeaker box structure according to claim 2 is it is characterised in that arrange between described front panel and described rear board There are four the 3rd graded plates, four described 3rd graded plates join end to end outside described second graded plate and surround the 3rd resonator； 3rd gas port of communication with cavity and the 3rd resonator is provided with away from front panel one end on the 3rd graded plate.

4. loudspeaker box structure according to claim 3 is it is characterised in that arrange between described front panel and described rear board There are four the 4th graded plates, four described 4th graded plates join end to end outside described 3rd graded plate and surround the 4th resonator； 4th gas port of communication with cavity and the 4th resonator is provided near front panel one end on the 4th graded plate.

5. loudspeaker box structure according to claim 4 is it is characterised in that described first graded plate, described second graded plate, institute State the 3rd graded plate and described 4th graded plate is square.

6. loudspeaker box structure according to claim 5 is it is characterised in that two neighboring described first graded plate phase at a right angle Even；Two neighboring described second graded plate is at a right angle to be connected；Two neighboring described 3rd graded plate is at a right angle to be connected；Two neighboring Described 4th graded plate is at a right angle to be connected.

7. loudspeaker box structure according to claim 6 is it is characterised in that described first gas port, described second gas port, institute State the 3rd gas port and described 4th air guide bore dia is 3cm.

8. the loudspeaker box structure according to any one of claim 1-7 it is characterised in that described front panel lower end with described under There is interval, two described collateral faggings, described front panel and described lower support base are on front side of described sound box body between support base Formed and have interval between described venthole or described rear board lower end and described lower support base, two described collateral faggings, after Panel and lower support base form described venthole on rear side of described sound box body.

9. the loudspeaker box structure according to any one of claim 1-7 is it is characterised in that be provided with below described lower support base Bracing frame；The second cavity volume placing speaker body is provided with described sound box body.

10. loudspeaker box structure according to claim 9 is it is characterised in that be provided with space bar in described second cavity volume, institute State space bar and described second cavity volume is separated into three the 3rd cavity volumes being used for accommodating speaker body.