CN204442638U - The television set of closed multi-cavity bass box and this bass box built-in - Google Patents
The television set of closed multi-cavity bass box and this bass box built-in Download PDFInfo
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- CN204442638U CN204442638U CN201520157145.2U CN201520157145U CN204442638U CN 204442638 U CN204442638 U CN 204442638U CN 201520157145 U CN201520157145 U CN 201520157145U CN 204442638 U CN204442638 U CN 204442638U
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the bass box of sound equipment and television set, the specifically television set of a kind of closed multi-cavity bass box and this bass box built-in, comprise casing, loud speaker, first bass radiator and the second bass radiator, described loud speaker is positioned at casing, this box house is separated into multiple cavity by the vibrating diaphragm of described loud speaker, described first bass radiator and the second bass radiator are relatively arranged on the tank wall of the arbitrary cavity in this cavity, other cavitys except installing described first bass radiator and the second bass radiator cavity are closed cavity.The diaphragm of loudspeaker of the utility model bass box and magnet are all placed in casing, not towards listening volume, are therefore directly radiated listening volume without alt, can obtain pure, clean, limpid bass.
Description
Technical field
The utility model relates to the bass box of sound equipment and television set, specifically the television set of a kind of closed multi-cavity bass box and this bass box built-in.
Background technology
As everyone knows, in recent years, along with technological progress, people require more and more higher to the broadcasting tonequality of sound equipment, and require that volume and weight is more and more less.On the other hand, panel TV set does thinner and thinner, but sound quality is done poorer and poorer, and this is because panel TV set is thinner, its loud speaker and audio amplifier just must do little do thin; Like this, bass effect is just very poor.In Fujian science tech publishing house in " loud speaker and the audio amplifier design manual " published in July, 2008, disclose closed audio amplifier (60 ~ 67 pages), open type audio amplifier (67 ~ 77 pages), passive radiation audio amplifier (77 ~ 78 pages); The audio amplifier of these public technologies, or be that volume is too large, quality is too heavy, otherwise it is not good again to have done bass reproduction effect little.Such bass box, also known as subwoofer, is difficult to the requirement meeting Modern sound, more can not be applied in panel TV set.
Utility model content
The purpose of this utility model is the television set providing a kind of closed multi-cavity bass box and this bass box built-in.Have multiple cavity in this bass box, be provided with loud speaker in cavity, in loud speaker, neighboring chambers is separated by the vibrating diaphragm of each loudspeaker unit, and on the tank wall of wherein arbitrary cavity, correspondence has installed two groups of passive bass radiators; The bass box (also known as subwoofer) made by this physical structure, bass is thick and heavy pure, and without the radiation of alt noise, the while that distortion being little, volume is little, lightweight, and can be arranged on easily in very thin panel TV set.
The purpose of this utility model is achieved through the following technical solutions:
The utility model comprises casing, loud speaker, the first bass radiator and the second bass radiator, described loud speaker is positioned at casing, this box house is separated into multiple cavity by the vibrating diaphragm of described loud speaker, described first bass radiator and the second bass radiator are relatively arranged on the tank wall of the arbitrary cavity in this cavity, and other cavitys except installing described first bass radiator and the second bass radiator cavity are closed cavity.
Wherein: the magnet of described loud speaker is arranged in arbitrary cavity of adjacent two cavitys;
Described loud speaker between adjacent two cavitys is two, and these two diaphragms of loudspeaker are arranged between adjacent two cavitys vibrating diaphragm, and the magnet of described two loud speakers lays respectively in adjacent two cavitys; Two described loud speakers form by the loudspeaker unit that quantity is identical, the electroacoustic of these two loud speakers connects for anti-phase connection, namely, when each loudspeaker unit vibrating diaphragm in a loud speaker vibrates outside the frame of this loudspeaker unit, each loudspeaker unit vibrating diaphragm in another loud speaker is simultaneously to the frame internal vibration of described loudspeaker unit;
Described loud speaker between adjacent two cavitys is multiple, is horizontal or vertically arranged in order, and the vibrating diaphragm of each described loud speaker is coplanar, and the magnet of described loud speaker is arranged in arbitrary cavity of adjacent two cavitys; Each described loud speaker forms by the loudspeaker unit that quantity is identical, and the electroacoustic connection of each described loud speaker is electroacoustic homophase, and the vibrating diaphragm of all loudspeaker units namely in each described loud speaker vibrates to same direction all simultaneously;
Described loud speaker is multiple, the magnet of each loud speaker is all arranged in the same side cavity of adjacent two cavitys, each loud speaker forms by the loudspeaker unit that quantity is identical, the electroacoustic connection of each described loud speaker is electroacoustic homophase, and the vibrating diaphragm of all loudspeaker units namely in each described loud speaker vibrates to same direction all simultaneously;
Described loud speaker is multiple, the magnet of adjacent two-loudspeaker is arranged in the not homonymy cavity of adjacent two cavitys, namely in adjacent two-loudspeaker, the magnet of a loud speaker is arranged in the side cavity of adjacent two cavitys residing for this loud speaker, the magnet of another loud speaker is arranged in the opposite side cavity of adjacent two cavitys residing for described loud speaker, and namely the vibrating diaphragm of adjacent two-loudspeaker is installed magnet vibrating diaphragm installation or magnet;
The first described bass radiator and the second bass radiator are identical bass radiator, and on the contour tank wall being arranged on described arbitrary cavity symmetrically; The vibrating diaphragm of described first bass radiator and the second bass radiator is parallel to each other, and spacing is less than the diameter of each loudspeaker unit in described loud speaker, the vibrating diaphragm plane parallel of first and second bass radiator described or the vibrating diaphragm plane perpendicular to loud speaker;
A kind of television set of built-in closed multi-cavity bass box, this television set comprises bass box and medium and high pitch loudspeaker, described bass box is described closed multi-cavity bass box, is arranged on the back side of television set, and described medium and high pitch loudspeaker is arranged in television set or in bass box; Described medium and high pitch loudspeaker comprises one or more identical loudspeaker unit, and is arranged in described television set or described bass box as independently alt audio amplifier.
Advantage of the present utility model and good effect are:
1. the diaphragm of loudspeaker of the utility model bass box and magnet are all placed in casing, not towards listening volume, are therefore directly radiated listening volume without alt, can obtain pure, clean, limpid bass.
2. the bass sound wave of forward and backward for the vibrating diaphragm of loudspeaker unit generation has all used by bass box of the present utility model, and they and respective cavity coordinate, and bass is doubled, and bass is more thick and heavy, and dive is darker.
3. be separated into airtight cavity by the vibrating diaphragm of loud speaker in bass box casing of the present utility model, form acoustic air spring, thus bass is enhanced.
4. the cavity of bass box of the present utility model except installing bass radiator is airtight cavity, and in case, the effect of gas air spring decreases the vibration displacement of loudspeaker voice coil, and bass distortion is reduced.
5. the arbitrary cavity correspondence in bass box of the present utility model has installed a pair relative passive bass radiator, under the boosting of closed cavity, produces low-frequency sound wave resonance, and bass is radiated listening volume, bass is further enhanced.
6. bass box of the present utility model is owing to adopting the passive bass radiator of symmetrical installation, vibration is produced under the low-frequency sound wave driving that loud speaker produces, these two bass radiator Oscillation Amplitudes are identical, direction is contrary, vibration force counteracts completely, therefore whole casing mechanical oscillation are very little, completely without casing mechanical vibration displacement.
7. the push-pull microphone drive system of bass box employing of the present utility model, makes bass double, audio amplifier PD.
8. bass box of the present utility model have employed loud speaker many parallel waies installations, and make electroacoustic converting sensitivity increase above 3db, audio amplifier power increases simultaneously.
9. bass box of the present utility model, loud speaker many series systems of employing are installed, and bass is increased, and audio amplifier power increases.
10. bass box of the present utility model, as subwoofer, volume is little, lightweight, mechanical oscillation are little, can be advantageously used in various sound equipment and panel TV set.
Accompanying drawing explanation
Figure 1A is the front sectional view of the utility model closed multi-cavity bass box embodiment one;
Figure 1B is the vertical view of Figure 1A;
Fig. 1 C is the left view of Figure 1A;
Fig. 2 A is the front sectional view of the utility model closed multi-cavity bass box embodiment two;
Fig. 2 B is the vertical view of Fig. 2 A;
Fig. 2 C is the left view of Fig. 2 A;
Fig. 3 A is the front sectional view of the utility model closed multi-cavity bass box embodiment three;
Fig. 3 B is the vertical view of Fig. 3 A;
Fig. 3 C is the left view of Fig. 3 A;
Fig. 4 A is the front sectional view of the utility model closed multi-cavity bass box embodiment four;
Fig. 4 B is the vertical view of Fig. 4 A;
Fig. 4 C is the left view of Fig. 4 A;
Fig. 5 A is the front sectional view of the utility model closed multi-cavity bass box embodiment five;
Fig. 5 B is the vertical view of Fig. 5 A;
Fig. 5 C is the left view of Fig. 5 A;
Fig. 6 A is the front sectional view of the utility model closed multi-cavity bass box embodiment six;
Fig. 6 B is the vertical view cutaway drawing of Fig. 6 A;
Fig. 6 C is the left view of Fig. 6 A;
Fig. 7 A is the front sectional view of the utility model closed multi-cavity bass box embodiment seven;
Fig. 7 B is the vertical view cutaway drawing of Fig. 7 A;
Fig. 7 C is that cutaway view is looked on a left side of Fig. 7 A;
Fig. 8 A is the front sectional view of the utility model closed multi-cavity bass box embodiment eight;
Fig. 8 B is the vertical view of Fig. 8 A;
Fig. 8 C is the left view of Fig. 8 A;
Fig. 9 A is the front sectional view of the utility model closed multi-cavity bass box embodiment nine;
Fig. 9 B is the vertical view cutaway drawing of Fig. 9 A;
Fig. 9 C is that cutaway view is looked on a left side of Fig. 9 A;
Figure 10 A is the front sectional view of the utility model closed multi-cavity bass box embodiment ten;
Figure 10 B is the vertical view cutaway drawing of Figure 10 A;
Figure 10 C is the left view of Figure 10 A;
Figure 11 A is the front sectional view of the utility model closed multi-cavity bass box embodiment 11;
Figure 11 B is the vertical view of Figure 11 A;
Figure 11 C is the left view of Figure 11 A;
Figure 12 A is the front sectional view of the utility model closed multi-cavity bass box embodiment 12;
Figure 12 B is the vertical view cutaway drawing of Figure 12 A;
Figure 12 C is the left view of Figure 12 A;
Figure 13 A is the front sectional view of the utility model closed multi-cavity bass box embodiment 13;
Figure 13 B is the vertical view of Figure 13 A;
Figure 13 C is the left view of Figure 13 A;
Figure 14 A is the front view of the utility model built-in closed multi-cavity bass box television set;
Figure 14 B is the upward view of Figure 14 A;
Figure 14 C is the rearview of Figure 14 A;
Figure 14 D is the upward view of Figure 14 C;
Wherein: 1 is the first cavity, 2 is the second cavity, and 3 is loud speaker, and 4 is the first bass radiator, and 5 is the second bass radiator, and 6 is middle chamber, and 7 is television set, and 8 is bass box, and 9 is medium and high pitch loudspeaker.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Closed multi-cavity bass box of the present utility model comprises casing, loud speaker 3, first bass radiator 4 and the second bass radiator 5, wherein loud speaker 3 is positioned at casing, this box house is separated into multiple cavity by the vibrating diaphragm of loud speaker 3, first bass radiator 4 and the second bass radiator 5 are relatively arranged on the tank wall of the arbitrary cavity in this cavity, and other cavitys except installation first bass radiator 4 and the second bass radiator 5 cavity are closed cavity.First bass radiator 4 is identical bass radiator with the second bass radiator 5, on the contour tank wall being arranged on arbitrary cavity symmetrically; The vibrating diaphragm of the first bass radiator 4 and the second bass radiator 5 is parallel to each other, and spacing is less than the diameter of each loudspeaker unit in loud speaker 3, the vibrating diaphragm plane parallel of first and second bass radiator 4,5 or the vibrating diaphragm plane perpendicular to loud speaker 3.
Embodiment one
As shown in figs. 1 a to 1 c, the loud speaker 3 of the present embodiment is one, is arranged in casing, with the vibrating diaphragm of loud speaker 3, casing is divided into the first cavity 1 and the second cavity 2, vibrating diaphragm is towards the second cavity 2, and after vibrating diaphragm, (namely the magnet of loud speaker) is towards the first cavity 1.The vibrating diaphragm plane of loud speaker 3 is parallel with the side box wall of first and second cavity 1,2.Loud speaker 3 can be a loudspeaker unit, also can be 2 ~ 8 loudspeaker units; Loud speaker 3 can be circular loudspeakers, and also can be oval or sequence shaped loudspeaker, its size can be 25mm ~ 350mm; The loud speaker 3 of the present embodiment is made up of a loudspeaker unit, uses the circular loudspeakers of a diameter 53mm.
First bass radiator 4 and the second bass radiator 5 are arranged on the tank wall of the second cavity 2 accordingly, first and second bass radiator 4,5 of the present embodiment is that contour symmetry is installed, and two vibrating diaphragm planes of first and second bass radiator 4,5 are parallel to each other, and perpendicular to the vibrating diaphragm plane of loud speaker 3.The interplanar distance of first and second bass radiator 4,5 vibrating diaphragm is less than the diameter of every loudspeaker unit in loud speaker 3, and the interplanar distance of first and second bass radiator 4,5 vibrating diaphragm of the present embodiment is 20mm.So-called bass radiator is again passive passive bass radiator, be commonly called as sky loudspeaker, it does not have the magnet of loud speaker, magnetic circuit and voice coil loudspeaker voice coil, only have vibrating diaphragm and supporting mechanism thereof, they can be circular, and also can be oval or square, form can be dull and stereotyped, also can be taper, these two bass radiator vibrating diaphragm areas and be more than or equal to all diaphragm of loudspeaker areas and; The present embodiment be the bass radiator of two identical circles (diameter 50mm).Certainly, also each bass radiator of first and second bass radiator 4,5 can be divided into 2 ~ 4 little bass radiators to implement.In the present embodiment, the tank wall at first and second bass radiator 4,5 place is parallel to each other, and all caves inward, the line of symmetry between first and second bass radiator 4,5 vibrating diaphragm plane and the centerline collineation of loud speaker 3 vibrating diaphragm plane.
First cavity 1 of the present embodiment bass box and the second cavity 2 can manufacture with die sinking injection moulding process, also can with other material as timber, metal material (as aluminium, iron etc.) or plastic or other material manufacture.First cavity 1 of the present embodiment and the second cavity 2 die sinking injection moulding process manufacture, and first design its outward appearance, then by appearance design body structure, then make injection mold, finally manufacture with injection molding machine.The bass box casing apparent size of the present embodiment is: 125mm (length) × 65mm (wide) × 65mm (height).
Embodiment two
As shown in Fig. 2 A ~ 2C, the difference of the present embodiment and embodiment one is: the vibrating diaphragm of loud speaker 3 is towards the first cavity 1, and the magnet of loud speaker 3 is towards the second cavity 2, and namely loud speaker 3 installation direction is just in time contrary with embodiment one.All the other are all identical with embodiment one.
Embodiment three
As shown in fig.3 a 3 c, the difference of the present embodiment and embodiment one is: the loud speaker 3 between the first cavity 1 and the second cavity 2 is two, (vibrating diaphragm is to vibrating diaphragm) is closely relatively arranged between the first cavity 1 and the second cavity 2 face-to-face, first cavity 1 and the second cavity 2 are separated by the vibrating diaphragm of two loud speakers 3, form push-pull microphone drive system.The magnet of two loud speakers 3 lays respectively in the first cavity 1, second cavity 2.Each loud speaker 3 is by loudspeaker unit composition, and quantity can be one ~ tetra-, and the loudspeaker unit quantity in two loud speakers 3 is identical; The each loud speaker 3 of the present embodiment is a loudspeaker unit, diameter 53mm.The outside dimension of whole bass box casing wants corresponding lengthening, and the vibrating diaphragm area of first and second bass radiator 4,5 also wants corresponding increase.The anti-phase connection of electroacoustic wanted by these two relative loud speakers 3, namely two loud speakers 3 are wanted to vibrate to same direction simultaneously, namely, when (namely the frame of loudspeaker unit is outer) vibrates the loudspeaker unit vibrating diaphragm in a loud speaker 3 forward, the loudspeaker unit vibrating diaphragm in another loud speaker 3 is wanted simultaneously to the frame internal vibration of its loudspeaker unit.All the other are all identical with embodiment one.
Embodiment four
As shown in figs. 4 a-4 c, the difference of the present embodiment and embodiment three is: loud speaker 3 is two, is provided separately, and the vibrating diaphragm of two loud speakers 3 parallels, and box house is separated into the first cavity 1, middle chamber 6 and the second cavity 2; The magnet of two loud speakers 3 is all arranged in the not homonymy cavity of adjacent two cavitys, namely the magnet of a loud speaker 3 is arranged in the side cavity of adjacent two cavitys residing for this loud speaker 3, the magnet of another loud speaker 3 is arranged in the opposite side cavity of adjacent two cavitys residing for described loud speaker 3, and namely the vibrating diaphragm of adjacent two-loudspeaker 3 is installed magnet vibrating diaphragm installation or magnet.In the present embodiment, the magnet of two loud speakers 3 is all positioned at middle chamber 6, and for first loud speaker 3, adjacent two cavitys residing for it are the middle chamber 6 that the magnet of the first cavity 1 and middle chamber 6, first loud speaker 3 is positioned on the right side; And for second loud speaker 3, adjacent two cavitys residing for it are the middle chamber 6 that the magnet of middle chamber 6 and the second cavity 2, the second loud speaker 3 is positioned at the side that keeps left; Middle chamber 6 is formed between adjacent two-loudspeaker 3.All the other are all identical with embodiment three.
Embodiment five
As shown in Fig. 5 A ~ 5C, the present embodiment is with the difference of embodiment four: the magnet installation direction of two loud speakers 3 and the contrary of embodiment four, namely the magnet of first loud speaker 3 is positioned at the first cavity 1 of the side that keeps left, for first loud speaker 3, adjacent two cavitys residing for it are the first cavity 1 that the magnet of the first cavity 1 and middle chamber 6, first loud speaker 3 is positioned at the side that keeps left; And the magnet of second loud speaker 3 is positioned at the second cavity 2 on the right side, for second loud speaker 3, adjacent two cavitys residing for it are the second cavity 2 that the magnet of middle chamber 6 and the second cavity 2, the second loud speaker 3 is positioned on the right side.All the other are all identical with embodiment four.
Embodiment six
As shown in figs. 6 a-6 c, the difference of the present embodiment and embodiment one is: the loud speaker 3 between the first cavity 1 and the second cavity 2 is for multiple, the magnet of each loud speaker 3 is all positioned at same cavity, each loud speaker 3 is horizontal or vertical to be arranged in order, vibrating diaphragm is coplanar, forms parallel speaker drive system.The loud speaker 3 of the present embodiment is two, setting up and down, the vibrating diaphragm of two loud speakers 3 is coplanar, magnet is all arranged in the first cavity 1.Each loud speaker 3 is by loudspeaker unit composition, and quantity can be a loudspeaker unit, also can be two ~ eight, and the loudspeaker unit quantity in two loud speakers 3 is identical; The each loud speaker 3 of the present embodiment is a loudspeaker unit, diameter 53mm.The outside dimension of whole bass box casing wants corresponding lengthening, and the vibrating diaphragm area of first and second bass radiator 4,5 also wants corresponding increase.All loudspeaker units in two loud speakers 3 all want electroacoustic with being connected, and namely all loudspeaker units are wanted to vibrate to same direction simultaneously.All the other are all identical with embodiment one.
Embodiment seven
As figs. 7 a to 7 c, the present embodiment is with the difference of embodiment six: in two loud speakers 3, all loudspeaker unit installation directions are contrary with embodiment six, namely the vibrating diaphragm of loud speaker 3 is towards the first cavity 1, the magnet of loud speaker 3 is towards the second cavity 2, and namely loud speaker 3 installation direction is just in time contrary with embodiment six.All the other are all identical with embodiment six.
Embodiment eight
As figs. 8 a to 8 c, the difference of the present embodiment and embodiment one is: the loud speaker 3 between the first cavity 1 and the second cavity 2 is for multiple, the magnet of adjacent two-loudspeaker 3 is positioned at the different cavitys of neighboring chambers, each loud speaker 3 is horizontal or vertical to be arranged in order, vibrating diaphragm is coplanar, forms parallel speaker drive system.The loud speaker 3 of the present embodiment is two, setting up and down, the vibrating diaphragm of two loud speakers 3 is coplanar, magnet lays respectively in the first cavity 1, second cavity 2.Each loud speaker 3 is by loudspeaker unit composition, and quantity can be a loudspeaker unit, also can be two ~ eight, and the loudspeaker unit quantity in two loud speakers 3 is identical; The each loud speaker 3 of the present embodiment is a loudspeaker unit, diameter 53mm.The outside dimension of whole bass box casing wants corresponding lengthening, and the vibrating diaphragm area of first and second bass radiator 4,5 also wants corresponding increase.The anti-phase connection of electroacoustic wanted by these two relative loud speakers 3, namely two loud speakers 3 are wanted to vibrate to same direction simultaneously, namely, when (namely the frame of loudspeaker unit is outer) vibrates the loudspeaker unit vibrating diaphragm in a loud speaker 3 forward, the loudspeaker unit vibrating diaphragm in another loud speaker 3 is wanted simultaneously to the frame internal vibration of its loudspeaker unit.All the other are all identical with embodiment one.
Embodiment nine
As shown in Fig. 9 A ~ 9C, the difference of the present embodiment and embodiment one is: loud speaker 3 is two, the vibrating diaphragm of two loud speakers 3 parallels, box house is separated into the first cavity 1, middle chamber 6 and the second cavity 2, the magnet of two loud speakers 3 is all positioned at the same side cavity of adjacent two cavitys, namely the magnet of first loud speaker 3 is positioned at middle chamber 6, for first loud speaker 3, adjacent two cavitys residing for it are the middle chamber 6 that the magnet of the first cavity 1 and middle chamber 6, first loud speaker 3 is positioned on the right side; And for second loud speaker 3, adjacent two cavitys residing for it are the second cavity 2 that the magnet of middle chamber 6 and the second cavity 2, the second loud speaker 3 is positioned on the right side.It is the magnet not having loud speaker in first cavity 1.Two loud speakers 3 in tandem, form tandem speaker drive system.The tank wall of second cavity 2 at the present embodiment first bass radiator 4 place and the upper tank wall of bass box coplanar, the tank wall of second cavity 2 at the second bass radiator 5 place caves inward.Each loud speaker 3 forms by multiple loudspeaker unit, and the loudspeaker unit quantity in two loud speakers 3 is identical; The each loud speaker 3 of the present embodiment is a loudspeaker unit, diameter 53mm.The outside dimension of whole bass box casing wants corresponding lengthening, and the vibrating diaphragm area of first and second bass radiator 4,5 also wants corresponding increase.All loudspeaker units in two loud speakers 3 all want electroacoustic with being connected, and namely all loudspeaker units are wanted simultaneously to same direction vibration sounding.All the other are all identical with embodiment one.
Embodiment ten
As shown in Figure 10 A ~ 10C, the present embodiment is with the difference of embodiment nine: in two loud speakers 3, all loudspeaker unit installation directions are contrary with embodiment nine, namely the vibrating diaphragm of two loud speakers 3 is towards the second cavity 2, the magnet of loud speaker 3 is towards the first cavity 1, namely the magnet of two loud speakers 3 lays respectively in the first cavity 1 and middle chamber 6, be the magnet not having loud speaker in second cavity 2, two loud speaker 3 installation directions are just in time contrary with embodiment nine.All the other are all identical with embodiment nine.
Embodiment 11
As shown in figs. l la to hc, the difference of the present embodiment and embodiment one is: first and second bass radiator 4,5 can be arranged on the optional position on the second cavity 2 tank wall, and first and second bass radiator 4,5 of the present embodiment is arranged on the position of the partial below of the second cavity 2; That is, the line of symmetry between first and second bass radiator 4,5 vibrating diaphragm plane is positioned at the below of loud speaker 3 vibrating diaphragm plane centreline.All the other are all identical with embodiment one.
Embodiment 12
As shown in Figure 12 A ~ 12C, the difference of the present embodiment and embodiment one is: the vibrating diaphragm plane of first and second bass radiator 4,5 and the vibrating diaphragm plane parallel of loud speaker 3, the magnet of loud speaker 3 is positioned at the second cavity 2, and the line of symmetry between first and second bass radiator 4,5 is positioned at the below of loud speaker 3 vibrating diaphragm plane centreline.
Embodiment 13
As shown in Figure 13 A ~ 13C, the present embodiment is with the difference of embodiment 12: installation direction and the embodiment 12 of loud speaker 3 are just in time contrary, and namely the vibrating diaphragm of loud speaker 3 is towards the second cavity 2, and the magnet of loud speaker 3 is positioned at the first cavity 1.
The television set of the built-in bass box of the utility model, as shown in Figure 14 A ~ 14D, television set 7 of the present utility model can be the panel TV set of prior art, in television set 7, lower backside is provided with bass box 8, this bass box 8 is above-mentioned closed multi-cavity bass box, the both sides of the inherent bass box 8 of television set 7 are also arranged with two independently medium and high pitch loudspeakers 9, or in the inside of bass box 8, be arranged with two independently medium and high pitch loudspeakers 9, two independently medium and high pitch loudspeaker 9 also can be merged into a medium and high pitch loudspeaker, be arranged in television set 7 or in bass box 8.Medium and high pitch loudspeaker 9 comprises one or more identical loudspeaker unit, and is arranged in television set 7 or bass box 8 as independently alt audio amplifier.
Operation principle of the present utility model is:
When audio power output puts on loud speaker 3, the loudspeaker unit vibrating diaphragm of loud speaker 3 produces vibration, realizes electroacoustic conversion.When the low frequency of audio frequency, loudspeaker unit amplitude is very large.When loudspeaker unit vibrating diaphragm vibrates to the first cavity 1, have compressed the air in the first cavity 1, because the first cavity 1 is airtight, air spring effect will be produced; The volume of the second cavity 2 becomes large simultaneously, and in it, atmospheric pressure is lower than atmospheric pressure, and atmospheric pressure just drives the vibrating diaphragm of first and second low frequency radiation device 4,5 simultaneously to the second cavity 2 internal vibration.When the loudspeaker unit vibrating diaphragm of loud speaker 3 vibrates to the second cavity 2, just have compressed the air in the second cavity 2, being discharged by the air spring compressed simultaneously in the first cavity 1, its restoring force boosting loudspeaker unit vibrating diaphragm, strengthen the atmospheric pressure in the second cavity 2, atmospheric pressure in second cavity 2 just higher than atmospheric pressure, thus drives first and second bass radiator 4,5 to vibrate outside the second cavity 2, so just low-frequency sound wave is radiated listening volume.Because the loudspeaker unit vibrating diaphragm of loud speaker 3 is not towards atmospheric environment, outside not exposed, but in airtight cavity, so, there is no alt acoustic irradiation to listening volume, so just can obtain pure, totally, limpid bass.Again because the front and back bass that loudspeaker unit vibrating diaphragm produces all has fully utilized by air spring effect, thus bass is strengthened, more thick and heavy; And decrease the voice coil loudspeaker voice coil displacement of loudspeaker unit simultaneously, reduce electroacoustic slewing distortion.Separately, because correspondence has installed first and second bass radiator 4,5, under the common promotion of first and second cavity 1,2, symmetric vibration, and amplitude size is just in time equal, direction of vibration is just in time contrary, thus produces low-frequency resonance, is that bass is more powerful; Simultaneously due to vibration force equal and opposite in direction, direction is contrary, cancels each other, and whole bass box vibration is very little, and casing displacement does not almost have.Such bass box can do volume is very little, very light in weight, vibrates very little, can be applied to very well in various sound system and panel TV set.
Closed multi-cavity bass box of the present utility model, have employed the closed Multicarity of innovation and passive passive bass radiator resonance, and is separated by multiple cavity with the vibrating diaphragm of loud speaker; Its physical acoustics novel structure, structure is simple, easy to manufacture, with low cost, makes little bass box, little loud speaker just can send simple and honest bass.Bass box of the present utility model is also known as subwoofer, due to the not direct Environment Oriented air of loudspeaker unit vibrating diaphragm, whole bass is by first, two bass radiators 4, listening volume is radiated after 5 resonance, therefore without the direct radiation direction listening volume of middle pitch treble sounds, make the bass of this bass box thoroughly pure, again because the first cavity 1 is airtight casing, air spring is formed during vibrating diaphragm vibrations, it not only reduces voice coil loudspeaker voice coil displacement, reduce distortion, make the more thick and heavy dive of bass darker simultaneously, the front and back bass sound wave produced due to the vibrating diaphragm of loudspeaker unit again all uses, greatly strengthen than generally only make use of the bass sound wave of the diaphragm of loudspeaker in casing.
Claims (12)
1. a closed multi-cavity bass box, comprise casing, loud speaker, the first bass radiator and the second bass radiator, it is characterized in that: described loud speaker (3) is positioned at casing, this box house is separated into multiple cavity by the vibrating diaphragm of described loud speaker (3), described first bass radiator (4) and the second bass radiator (5) are relatively arranged on the tank wall of the arbitrary cavity in this cavity, and other cavitys except installing described first bass radiator (4) and the second bass radiator (5) cavity are closed cavity.
2., by closed multi-cavity bass box according to claim 1, it is characterized in that: the magnet of described loud speaker (3) is arranged in arbitrary cavity of adjacent two cavitys.
3. by closed multi-cavity bass box according to claim 1, it is characterized in that: the described loud speaker (3) between adjacent two cavitys is two, these two loud speaker (3) vibrating diaphragms are arranged between adjacent two cavitys vibrating diaphragm, and the magnet of described two loud speakers (3) lays respectively in adjacent two cavitys.
4. by closed multi-cavity bass box according to claim 3, it is characterized in that: two described loud speakers (3) form by the loudspeaker unit that quantity is identical, the electroacoustic of these two loud speakers (3) connects for anti-phase connection, namely, when each loudspeaker unit vibrating diaphragm in a loud speaker (3) vibrates outside the frame of this loudspeaker unit, each loudspeaker unit vibrating diaphragm in another loud speaker (3) is simultaneously to the frame internal vibration of described loudspeaker unit.
5. by closed multi-cavity bass box according to claim 1, it is characterized in that: the described loud speaker (3) between adjacent two cavitys is for multiple, horizontal or vertically to be arranged in order, the vibrating diaphragm of each described loud speaker (3) is coplanar, and the magnet of described loud speaker (3) is arranged in arbitrary cavity of adjacent two cavitys.
6. by closed multi-cavity bass box according to claim 5, it is characterized in that: each described loud speaker (3) forms by the loudspeaker unit that quantity is identical, the electroacoustic connection of each described loud speaker (3) is electroacoustic homophase, and the vibrating diaphragm of all loudspeaker units namely in each described loud speaker (3) vibrates to same direction all simultaneously.
7. by closed multi-cavity bass box according to claim 1, it is characterized in that: described loud speaker (3) is for multiple, the magnet of each loud speaker (3) is all arranged in the same side cavity of adjacent two cavitys, each loud speaker (3) forms by the loudspeaker unit that quantity is identical, the electroacoustic connection of each described loud speaker (3) is electroacoustic homophase, and the vibrating diaphragm of all loudspeaker units namely in each described loud speaker (3) vibrates to same direction all simultaneously.
8. by closed multi-cavity bass box according to claim 1, it is characterized in that: described loud speaker (3) is for multiple, the magnet of adjacent two-loudspeaker (3) is arranged in the not homonymy cavity of adjacent two cavitys, namely in adjacent two-loudspeaker (3), the magnet of a loud speaker (3) is arranged in the side cavity of residing adjacent two cavitys of this loud speaker (3), the magnet of another loud speaker (3) is arranged in the opposite side cavity of residing adjacent two cavitys of described loud speaker (3), namely the vibrating diaphragm of adjacent two-loudspeaker (3) is installed magnet vibrating diaphragm installation or magnet.
9. by closed multi-cavity bass box according to claim 1, it is characterized in that: the first described bass radiator (4) and the second bass radiator (5) they are identical bass radiator, and on the contour tank wall being arranged on described arbitrary cavity symmetrically.
10. by closed multi-cavity bass box according to claim 9, it is characterized in that: described first bass radiator (4) is parallel to each other with the vibrating diaphragm of the second bass radiator (5), and spacing is less than the diameter of each loudspeaker unit in described loud speaker (3), the described vibrating diaphragm plane parallel of first and second bass radiator (4,5) or the vibrating diaphragm plane perpendicular to loud speaker (3).
The television set of closed multi-cavity bass box described in 11. 1 kinds of arbitrary claims of built-in claim 1 to 10, it is characterized in that: this television set (7) comprises bass box (8) and medium and high pitch loudspeaker (9), described bass box (8) is described closed multi-cavity bass box, is arranged on the back side of television set (7), and described medium and high pitch loudspeaker (9) is arranged in television set (7) or in bass box (8).
12. by television set according to claim 11, it is characterized in that: described medium and high pitch loudspeaker (9) comprises one or more identical loudspeaker unit, and be arranged in described television set (7) or described bass box (8) as independently alt audio amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157145.2U CN204442638U (en) | 2015-03-19 | 2015-03-19 | The television set of closed multi-cavity bass box and this bass box built-in |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520157145.2U CN204442638U (en) | 2015-03-19 | 2015-03-19 | The television set of closed multi-cavity bass box and this bass box built-in |
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| Publication Number | Publication Date |
|---|---|
| CN204442638U true CN204442638U (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520157145.2U Expired - Fee Related CN204442638U (en) | 2015-03-19 | 2015-03-19 | The television set of closed multi-cavity bass box and this bass box built-in |
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| CN (1) | CN204442638U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246008A (en) * | 2015-10-26 | 2016-01-13 | 上海创米科技有限公司 | Resonance type loudspeaker |
| CN106034270A (en) * | 2015-03-19 | 2016-10-19 | 深圳纽斯声学系统有限公司 | closed multiple-cavity type low-pitch sound box and television set with the built-in low-pitch sound box |
| CN107864368A (en) * | 2016-09-21 | 2018-03-30 | 迪芬尼香港有限公司 | Voice ＆ Video optical projection system |
| CN109996154A (en) * | 2017-12-31 | 2019-07-09 | 宁波升亚电子有限公司 | Loudspeaker and its application |
-
2015
- 2015-03-19 CN CN201520157145.2U patent/CN204442638U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106034270A (en) * | 2015-03-19 | 2016-10-19 | 深圳纽斯声学系统有限公司 | closed multiple-cavity type low-pitch sound box and television set with the built-in low-pitch sound box |
| CN105246008A (en) * | 2015-10-26 | 2016-01-13 | 上海创米科技有限公司 | Resonance type loudspeaker |
| CN107864368A (en) * | 2016-09-21 | 2018-03-30 | 迪芬尼香港有限公司 | Voice ＆ Video optical projection system |
| CN109996154A (en) * | 2017-12-31 | 2019-07-09 | 宁波升亚电子有限公司 | Loudspeaker and its application |
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