CN105812988A - Dual-box subwoofer and television set internally provided with same - Google Patents
Dual-box subwoofer and television set internally provided with same Download PDFInfo
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- CN105812988A CN105812988A CN201410843906.XA CN201410843906A CN105812988A CN 105812988 A CN105812988 A CN 105812988A CN 201410843906 A CN201410843906 A CN 201410843906A CN 105812988 A CN105812988 A CN 105812988A
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Abstract
The invention relates a bass sound box, and specifically relates to a dual-box subwoofer and a television set internally provided with the same. A small box of the subwoofer is disposed inside a large box of the subwoofer. The small box and the large box are cylinder-shaped, and the end surfaces of the small box and the large box are polygon-shaped. At least one end surface of the small box is coplanar with at least one end surface of the large box, and the coplanar end surface of the large box and the small box is provided with a second sound port. A second sound guiding tube is disposed inside the small box, wherein the second sound guiding tube is communicated with the ambient atmosphere through the second sound port, and sound wave airflow is transmitted between the small box and the ambient atmosphere through the second sound guiding tube. The large box is provided with a first sound port, and a first sound guiding tube is disposed inside the large box, wherein the first sound guiding tube is communicated with the ambient atmosphere through the first sound port, and the sound wave airflow is transmitted between the large box and the ambient atmosphere through the first sound guiding tube. The first sound port is arranged in the end surface at the other end of the large box, or in the side surface provided with any edge of the polygon, or is coplanar with the second sound port. Loudspeaker units are mounted on the small box. The dual-box subwoofer is advantaged by good bass effects, small size and non-distortion.
Description
Technical field
The present invention relates to woofer, specifically the television set of a kind of double-case bass big gun and this double-case bass big gun built-in.
Background technology
It is known that television technologies, especially panel TV set technical development are rapid, people are more and more higher to the requirement of television set；And the quality pursuit of television set is two, one is that image is good, and one is that sound is good.Current panel TV set does thinner and thinner, and image is become better and better, but sound is along with doing thinner and thinner worse and worse, this be due to television set do thin after, size and the tank-volumes of speaker are restricted, and make the poor effect that bass pronounces.In Fujian science tech publishing house in " speaker and audio amplifier design manual " that in July, 2008 publishes, disclose closed audio amplifier (60～67 pages), open type audio amplifier (67～77 pages), passive radiation audio amplifier (77～78 pages).When these public technologies are used in panel TV set, owing to flat panel TV is thin, speaker size is smaller, and sound box volume is only small, just poor by the television set tonequality of these public technologies, especially bass, almost just resets not out.And speaker size strengthens, though audio amplifier strengthens can meet sound requirement, but it is difficult on large scale speaker and large scale loudspeaker box device to panel TV set.For solving this problem, propose outside panel TV set, separately add a soundbar again, namely separately add a bar-shaped audio amplifier be placed in before television set and separately add a very large subwoofer (such as traditional open type subwoofer that 200mm speaker does), place on the ground, which not only adds occupation of land placing space area and installation workload, but also considerably increase cost.
Summary of the invention
In order to solve the problem of lower tone, it is an object of the invention to provide a kind of double-case bass big gun and the television set of this double-case bass big gun built-in.
It is an object of the invention to be achieved through the following technical solutions:
The double-case bass big gun of the present invention includes big casing, small box, loudspeaker unit, the first phonocatheter and the second phonocatheter, wherein small box is arranged in big casing, it is polygonal column that described big casing and small box are end face, at least one end face of described small box is coplanar with the end face of big casing one, and on the coplanar end face of described big casing and small box, have the second outlet sound mouth, be provided with in described small box be connected with ambient air by this second outlet sound mouth, the second phonocatheter of conducted acoustic waves air-flow between small box and ambient air；Described big casing has the first outlet sound mouth, be provided with in this big casing be connected with ambient air by described first outlet sound mouth, the first phonocatheter of conducted acoustic waves air-flow between big casing and ambient air；Described first outlet sound mouth is opened in side, polygon place or coplanar with described second outlet sound mouth on the end face of the big casing other end or big casing；Described small box is provided with loudspeaker unit.
The double-case bass big gun of the present invention includes big casing, small box, loudspeaker unit, first phonocatheter and the second phonocatheter, wherein small box is arranged in big casing, it is polygonal column that described big casing and small box are end face, on described small box, the either side of side, polygon place is coplanar with the either side of side, polygon place on big casing, and have the second outlet sound mouth on the coplanar side of described big casing and small box, it is provided with in described small box and is connected with ambient air by this second outlet sound mouth, the second phonocatheter of conducted acoustic waves air-flow between small box and ambient air；Described big casing has the first outlet sound mouth, be provided with in this big casing be connected with ambient air by described first outlet sound mouth, the first phonocatheter of conducted acoustic waves air-flow between big casing and ambient air；Described first outlet sound mouth is opened in side, polygon place on the end face of big casing either end or big casing；Except other sides coplanar with big casing are provided with loudspeaker unit in side, polygon place on described small box.
The double-case bass big gun of the present invention includes big casing, small box, loudspeaker unit, first phonocatheter and the second phonocatheter, wherein small box is arranged in big casing, it is polygonal column that described big casing and small box are end face, described big casing has the first outlet sound mouth and the second outlet sound mouth, it is provided with in this big casing and is connected with ambient air by described first outlet sound mouth, the first phonocatheter of conducted acoustic waves air-flow between big casing and ambient air, one end of described second phonocatheter is arranged on big casing and offers the position of the second outlet sound mouth, the other end inserts in described small box, it is connected with ambient air by this second phonocatheter and the second outlet sound mouth in described small box, and by conducted acoustic waves air-flow between described second phonocatheter and ambient air；Described small box is provided with loudspeaker unit on side, polygon place.
Wherein: the end face of described big casing and small box is regular polygon, and limit number is equal；On described big casing, the either side in side, polygon place is curved surface；The area of described first outlet sound mouth more than or equal to the area of the second outlet sound mouth, this first and second outlet sound mouth be shaped as polygon or circle；The face area of described first phonocatheter is more than or equal to the face area of the second phonocatheter, and the length of this first phonocatheter is more than the length of described second phonocatheter；The end surface shape of described first phonocatheter is corresponding with the shape of the first outlet sound mouth, and the end surface shape of described second phonocatheter is corresponding with the shape of the second outlet sound mouth；Loudspeaker unit on described small box is acoustics homophase and installs, and namely described loudspeaker unit sounding vibrations direction synchronizes, and loudspeaker unit vibrating diaphragm is simultaneously to described small box internal vibration, or vibrates outside described small box simultaneously.
The television set of the present invention built-in double-case bass big gun includes subwoofer, left speaker and right speaker, described subwoofer is arranged on the back side of television set, described left speaker and right speaker are identical speaker, in the left and right sides being symmetrically mounted on described television set or the big casing being separately mounted to described subwoofer, and it is symmetrical arranged.
Wherein: the end face of described big casing and small box is regular polygon, and limit number is equal；On described big casing, the either side in side, polygon place is curved surface；The area of described first outlet sound mouth more than or equal to the area of the second outlet sound mouth, this first and second outlet sound mouth be shaped as polygon or circle；The face area of described first phonocatheter is more than or equal to the face area of the second phonocatheter, and the length of this first phonocatheter is more than the length of described second phonocatheter；The end surface shape of described first phonocatheter is corresponding with the shape of the first outlet sound mouth, and the end surface shape of described second phonocatheter is corresponding with the shape of the second outlet sound mouth；Described television set has L channel, R channel and the output of subwoofer channel three road audio power, described L channel connects left speaker, described R channel connects right speaker, described subwoofer channel connects the loudspeaker unit in subwoofer, and described L channel is electroacoustic be connected with connection and the subwoofer channel of right speaker with the connection of subwoofer with the connection of left speaker, R channel；Described television set has L channel and the output of R channel two-way audio power, its connected mode is that the output of left audio power connects left speaker by a LC high pass filter, and connects the loudspeaker unit of half quantity in subwoofer by a LC low pass filter；The output of described right audio channel power connects right speaker by another LC high pass filter, and connects the loudspeaker unit of second half quantity in subwoofer by another LC low pass filter.
Advantages of the present invention and good effect be:
1. the double-case bass big gun of the present invention have employed two casings and forms nesting type structure, small box is nested in big casing, big casing has respective phonocatheter to be connected with ambient air with outlet sound mouth with small box, all-bottom sound air-flow produces the resonance of all-bottom sound air-flow by phonocatheter between big casing and small box, low-frequency sound wave greatly strengthens, and makes TV function send the bass sound wave of simple and honest shock.
2. the subwoofer of the present invention is mounted with many (1～8) loudspeaker units on small box, makes many little woofers (such as 45mm diameter speaker) synchronous cant, forms actively many membrane resonances, thus producing powerful low-frequency sound wave.
3. the subwoofer volume of the present invention is little, lightweight, very thin (as 53mm is thick) that especially thickness can do, it is possible to be easily installed in panel TV set, without the thickness increasing television set.
4. the loudspeaker unit of subwoofer of the present invention adopts many small size loudspeaker units to install side by side, makes low frequency electric sound conversion sounding sensitivity be greatly improved, when with two loudspeaker units, can improve sound intensity 3dB, and the more many increase rates of quantity are more big.
5. the loudspeaker unit of subwoofer of the present invention adopts many, it is possible to increase substantially the power of subwoofer, reduces the power requirement of every loudspeaker unit in other words.
6. the subwoofer of the present invention have employed many loudspeaker units, under equal intensity of sound, substantially reduces the amplitude of every speaker, thus greatly reduces loudspeaker distortions.
7. the television set of the present invention has two speakers in left and right or audio amplifier, primary responsibility intermediate frequency and high frequency, medium-high frequency sound wave can be directly radiated listening volume so that TV function obtains clearly loud intermediate frequency and high frequency is reset.
Accompanying drawing explanation
Figure 1A is the internal structure schematic diagram of double-case bass big gun embodiment one of the present invention；
Figure 1B is Figure 1A is upward view；
Fig. 2 A is the internal structure schematic diagram of the embodiment of the present invention two；
Fig. 2 B is the upward view of Fig. 2 A；
Fig. 3 A is the internal structure schematic diagram of double-case bass big gun embodiment three of the present invention；
Fig. 3 B is the top view of Fig. 3 A；
Fig. 4 A is the internal structure schematic diagram of double-case bass big gun embodiment four of the present invention；
Fig. 4 B is the upward view of Fig. 4 A；
Fig. 4 C is the left view of Fig. 4 A；
Fig. 5 A is the internal structure schematic diagram of double-case bass big gun embodiment five of the present invention；
Fig. 5 B is the upward view of Fig. 5 A；
Fig. 6 A is the internal structure schematic diagram of double-case bass big gun embodiment six of the present invention；
Fig. 6 B is the left view of Fig. 6 A；
Fig. 7 A is the internal structure schematic diagram of double-case bass big gun embodiment seven of the present invention；
Fig. 7 B is the upward view of Fig. 7 A；
Fig. 7 C is the left view of Fig. 7 A；
Fig. 8 A is the internal structure schematic diagram of double-case bass big gun embodiment eight of the present invention；
Fig. 8 B is the upward view of Fig. 8 A；
Fig. 9 A is the front view of the built-in double-case bass big gun television set of the present invention；
Fig. 9 B is the upward view of Fig. 9 A；
Fig. 9 C is the rearview of Fig. 9 A；
Fig. 9 D is the upward view of Fig. 9 C；
Figure 10 be the present invention this double-case bass big gun built-in television set in the connection diagram of speaker and audio-frequency power amplifier；
Wherein: 1 is television set, 2 is subwoofer, and 3 is left speaker, and 4 is right speaker, and 5 is big casing, and 6 is small box, and 7 is loudspeaker unit, and 8 is the first outlet sound mouth, and 9 is the first phonocatheter, and 10 is the second outlet sound mouth, and 11 is the second phonocatheter.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
The double-case bass big gun of the present invention includes big casing 5, small box 6, loudspeaker unit the 7, first phonocatheter 9 and the second phonocatheter 11, wherein small box 6 is nested in big casing 5, it is polygonal column that big casing 5 and small box 6 are end face, big casing 5 is connected with ambient air by the first phonocatheter 9, conducted acoustic waves air-flow between big casing 5 and ambient air；Small box 6 is connected with ambient air by the second phonocatheter 11, conducted acoustic waves air-flow between small box 6 and ambient air.Small box 6 is provided with 1～8 loudspeaker unit 7.
The polygon of big casing 5 and small box 6 end face, it is possible to for regular polygon, it is also possible to be non-regular polygon, it is possible to be the casing that limit number is identical, it is also possible to be the casing of different edge number.On big casing 5 in the side at polygon place, it is possible to having at least one side is curved surface, with being suitable for different mounting conditions.The area of the first outlet sound mouth 8 more than or equal to the area of the second outlet sound mouth 10, this first and second outlet sound mouth 8,10 be shaped as polygon or circle；The face area of the first phonocatheter 9 is more than or equal to the face area of the second phonocatheter 11, and the length of this first phonocatheter 9 is more than the length of the second phonocatheter 11.The end surface shape of the first phonocatheter 9 is corresponding with the shape of the first outlet sound mouth 8, and the end surface shape of the second phonocatheter 11 is corresponding with the shape of the second outlet sound mouth.
Embodiment one
As shown in Figure 1A, Figure 1B, the end face of the big casing 5 of the present embodiment is rectangle (tetragon), and the end face of small box 6 is regular hexagon.Small box 6 is nested in big casing 5, and the volume of big casing 5 is more than the volume of small box 6, and the end face of big casing 5 rear and front end is coplanar with the end face of small box 6 rear and front end respectively, so can reduce the thickness of subwoofer 2.
The front end face that big casing 5 and small box 6 are coplanar has the second outlet sound mouth 10, be provided with in small box 6 be connected with ambient air by this second outlet sound mouth 10, the second phonocatheter 11 of conducted acoustic waves air-flow between small box 6 and ambient air.Big casing 5 has the first outlet sound mouth 8, be provided with in big casing 5 be connected with ambient air by the first outlet sound mouth 8, the first phonocatheter 9 of conducted acoustic waves air-flow between big casing 5 and ambient air；First outlet sound mouth 8 can be opened in the either side or coplanar with the second outlet sound mouth 10 on the end face of big casing 5 rear end or big casing 5 in side, four edges place；The present embodiment is to be positioned on below small box 6 side the first outlet sound mouth 8 offered.First phonocatheter 9 and the first outlet sound mouth 8 are corresponding, and the end surface shape of the first phonocatheter 9 can be polygon, it is also possible to be circular, and the present embodiment be circular, and namely the end face of the first phonocatheter 9 and the first outlet sound mouth 8 are all circles.Second phonocatheter 11 and the second outlet sound mouth 10 are corresponding, and the end surface shape of the second phonocatheter 11 can be polygon, it is also possible to be circular, and the present embodiment be circle, and namely the end face of the second phonocatheter 11 and the second outlet sound mouth 10 are circle.First phonocatheter 9 and the second phonocatheter 11 can use paper tube, plastic tube and metal tube, and the present embodiment is plastic tube.The length of the first phonocatheter 9 and face area is all higher than or equal to the length of the second phonocatheter 11 and face area, the present embodiment the first phonocatheter 9 length is 200mm, and sectional area is 800mm2, the length of the second phonocatheter 11 is 100mm, and sectional area is 700mm2。
The present embodiment is mounted on a loudspeaker unit 7 on six sides of small box 6, all loudspeaker units 7 are identical woofer, loudspeaker unit can be circular can also be oval, loudspeaker unit 7 is of a size of 20～200mm, the circular woofer of the present embodiment, is of a size of diameter 45mm.Six loudspeaker unit 7 installation directions are identical, can also be different, the present embodiment adopts installation direction same way, but all loudspeaker units will homophase sounding, namely the loudspeaker unit vibrating diaphragm direction in six loudspeaker units 7 is all installed towards same direction, namely all towards small box 6；Six loudspeaker unit 7 sounding vibrations directions synchronize, and loudspeaker unit vibrating diaphragm is simultaneously to small box 6 internal vibration, or vibrates outside small box 6 simultaneously.
Embodiment two
As shown in Fig. 2 A, Fig. 2 B, the present embodiment and embodiment one are distinctive in that, big casing 5 is that two faces are designed as curved surface, it is possible to suitable in different mounting conditions, other are all identical with embodiment one.
Embodiment three
As shown in Fig. 3 A, Fig. 3 B, the present embodiment and embodiment one are distinctive in that, the end face of big casing 5 and small box 6 is regular pentagon, the side being positioned at place, a small box 6 upper left limit in five limits of big casing 5 has the first outlet sound mouth 8, first phonocatheter 9 is positioned at big casing 5, and one end is also arranged on the position offering the first outlet sound mouth 8.The present embodiment is mounted on a loudspeaker unit 7 on five sides of small box 6, all loudspeaker units 7 are identical woofer, loudspeaker unit can be circular can also be oval, loudspeaker unit 7 is of a size of 20～200mm, the circular woofer of the present embodiment, is of a size of diameter 52mm.Five loudspeaker unit 7 installation directions are identical, can also be different, the present embodiment adopts installation direction same way, but all loudspeaker units will homophase sounding, namely the loudspeaker unit vibrating diaphragm direction in five loudspeaker units 7 is all installed towards same direction, namely all towards small box 6；Five loudspeaker unit 7 sounding vibrations directions synchronize, and loudspeaker unit vibrating diaphragm is simultaneously to small box 6 internal vibration, or vibrates outside small box 6 simultaneously.Other are all identical with embodiment one.
Embodiment four
As shown in figs. 4 a-4 c, the present embodiment and embodiment one are distinctive in that, the end face of small box 6 is equilateral triangle, small box 6 is except the front/rear end of former and later two end faces Yu big casing 5 is coplanar, the side at the place, base of equilateral triangle is also coplanar with a side of big casing 5, and on this coplanar side, offering the second outlet sound mouth 10, the second phonocatheter 11 is positioned at small box 6, and one end is arranged on the position offering the second outlet sound mouth 10.First outlet sound mouth 8 is opened on big casing 5 side on the left of small box 6, and the first phonocatheter 9 is positioned at big casing 5, and one end is also arranged on the position offering the first outlet sound mouth 8.The present embodiment is respectively provided with a loudspeaker unit 7 on the side at equilateral triangle two hypotenuse place, all loudspeaker units 7 are identical woofer, loudspeaker unit can be circular can also be oval, loudspeaker unit 7 is of a size of 20～200mm, the circular woofer of the present embodiment, is of a size of diameter 52mm.Two loudspeaker unit 7 installation directions are identical, can also be different, the present embodiment adopts installation direction same way, but all loudspeaker units will homophase sounding, namely the loudspeaker unit vibrating diaphragm direction in two loudspeaker units 7 is all installed towards same direction, namely all towards small box 6；Two loudspeaker unit 7 sounding vibrations directions synchronize, and loudspeaker unit vibrating diaphragm is simultaneously to small box 6 internal vibration, or vibrates outside small box 6 simultaneously.Other are all identical with embodiment one.
Embodiment five
As shown in Fig. 5 A, Fig. 5 B, the present embodiment and embodiment one are distinctive in that, the end face of small box 6 is rectangle, small box 6 is except the coplanar part of front/rear end of former and later two end faces Yu big casing 5, the side at the place, base of rectangle is also coplanar with a side of big casing 5, and on this coplanar side, offering the second outlet sound mouth 10, the second phonocatheter 11 is positioned at small box 6, and one end is arranged on the position offering the second outlet sound mouth 10.First outlet sound mouth 8 and the second outlet sound mouth 10 are opened on the same face, and the first phonocatheter 9 is positioned at big casing 5, and one end is also arranged on the position offering the first outlet sound mouth 8.The present embodiment is mounted with a loudspeaker unit 7 on the side at rectangle top margin place, and the side at the dual-side place of rectangle is respectively mounted with two loudspeaker units 7；All loudspeaker units 7 are identical woofer, and loudspeaker unit can be circular can also be oval, and loudspeaker unit 7 is of a size of 20～200mm, the circular woofer of the present embodiment, is of a size of diameter 52mm.Five loudspeaker unit 7 installation directions are identical, can also be different, the present embodiment adopts installation direction same way, but all loudspeaker units will homophase sounding, namely the loudspeaker unit vibrating diaphragm direction in five loudspeaker units 7 is all installed towards same direction, namely all towards small box 6；Five loudspeaker unit 7 sounding vibrations directions synchronize, and loudspeaker unit vibrating diaphragm is simultaneously to small box 6 internal vibration, or vibrates outside small box 6 simultaneously.Other are all identical with embodiment one.
Embodiment six
As shown in Fig. 6 A, Fig. 6 B, the present embodiment and embodiment five are distinctive in that, the end face of small box 6 is rectangle, and former and later two end faces of small box 6 are coplanar with the front/rear end of big casing 5.Respectively being mounted with three loudspeaker units 7 on the top margin of rectangle and the side at place, base, on each side, one in three loudspeaker units 7 is positioned at small box 6, and two other is positioned at outside small box 6.The side at one side place of rectangle is provided with the second phonocatheter 11, the side of the big casing 5 corresponding to this side offers the first outlet sound mouth 8 and the second outlet sound mouth 10 respectively, one end of second phonocatheter 11 is arranged on big casing 5 and offers the position of the second outlet sound mouth 10, and the other end inserts in small box 6；First phonocatheter 9 is positioned at big casing 5, and one end is also arranged on the position offering the first outlet sound mouth 8.The all loudspeaker units of the present embodiment 7 are identical woofer, and loudspeaker unit can be circular can also be oval, and loudspeaker unit 7 is of a size of 20～200mm, the circular woofer of the present embodiment, is of a size of diameter 52mm.Six loudspeaker unit 7 installation directions are identical, can also be different, the present embodiment adopts installation direction same way, but all loudspeaker units will homophase sounding, namely the loudspeaker unit vibrating diaphragm direction in six loudspeaker units 7 is all installed towards same direction, namely all towards small box 6；Six loudspeaker unit 7 sounding vibrations directions synchronize, and loudspeaker unit vibrating diaphragm is simultaneously to small box 6 internal vibration, or vibrates outside small box 6 simultaneously.Other are all identical with embodiment five.
Embodiment seven
As figs. 7 a to 7 c, the present embodiment and embodiment six are distinctive in that, the end face of small box 6 is rectangle, and former and later two end faces of small box 6 are coplanar with the front/rear end of big casing 5.Being mounted with three loudspeaker units 7 on the side at the top margin place of rectangle, three loudspeaker units 7 are respectively positioned on outside small box 6.Being provided with the second phonocatheter 11 on the side at one side place of rectangle, the side of the big casing 5 corresponding to this side offers the first outlet sound mouth 8 and the second outlet sound mouth 10 respectively, the first outlet sound mouth 8 is positioned at the top of the second outlet sound mouth 10.One end of second phonocatheter 11 is arranged on big casing 5 and offers the position of the second outlet sound mouth 10, and the other end inserts in small box 6；First phonocatheter 9 is positioned at big casing 5, and one end is also arranged on the position offering the first outlet sound mouth 8.Big casing 5 side below small box 6 is symmetrically provided with left speaker 3 and right speaker 4.The all loudspeaker units of the present embodiment 7 are identical woofer, and loudspeaker unit can be circular can also be oval, and loudspeaker unit 7 is of a size of 20～200mm, the circular woofer of the present embodiment, is of a size of diameter 52mm.Three loudspeaker unit 7 installation directions are identical, can also be different, the present embodiment adopts installation direction same way, but all loudspeaker units will homophase sounding, namely the loudspeaker unit vibrating diaphragm direction in three loudspeaker units 7 is all installed towards same direction, namely all towards small box 6；Three loudspeaker unit 7 sounding vibrations directions synchronize, and loudspeaker unit vibrating diaphragm is simultaneously to small box 6 internal vibration, or vibrates outside small box 6 simultaneously.Other are all identical with embodiment six.
Embodiment eight
As shown in Fig. 8 A, Fig. 8 B, the present embodiment and embodiment six are distinctive in that, the end face of small box 6 is square, and former and later two end faces of small box 6 are coplanar with the front/rear end of big casing 5.Side, place, foursquare base is provided with the second phonocatheter 11, the side of the big casing 5 corresponding to this side offers the first outlet sound mouth 8 and the second outlet sound mouth 10 respectively, one end of second phonocatheter 11 is arranged on big casing 5 and offers the position of the second outlet sound mouth 10, and the other end inserts in small box 6；First phonocatheter 9 is positioned at big casing 5, and one end is also arranged on the position offering the first outlet sound mouth 8.Respectively being provided with a loudspeaker unit 7 on the side at other three places, limit of square, the loudspeaker unit 7 on side, top margin place is positioned at outside small box 6, and the loudspeaker unit 7 on side, dual-side place is positioned at small box 6.The all loudspeaker units of the present embodiment 7 are identical woofer, and loudspeaker unit can be circular can also be oval, and loudspeaker unit 7 is of a size of 20～200mm, the circular woofer of the present embodiment, is of a size of diameter 52mm.Three loudspeaker unit 7 installation directions are identical, can also be different, the present embodiment adopts installation direction same way, but all loudspeaker units will homophase sounding, namely the loudspeaker unit vibrating diaphragm direction in three loudspeaker units 7 is all installed towards same direction, namely all towards small box 6；Three loudspeaker unit 7 sounding vibrations directions synchronize, and loudspeaker unit vibrating diaphragm is simultaneously to small box 6 internal vibration, or vibrates outside small box 6 simultaneously.Other are all identical with embodiment six.
The television set of the built-in double-case bass big gun of the present invention, as shown in Fig. 9 A～9D, the television set 1 of the present invention can be the panel TV set of prior art, subwoofer 2 is installed in television set 1, also symmetrical in television set 1 it is provided with independent speaker (audio amplifier), i.e. left speaker (audio amplifier) 3 and right speaker (audio amplifier) 4.The Audio power amplifier of television set 1 has three tunnel outputs, i.e. 2.1 output, respectively L channel, R channel and subwoofer channel, the L channel output of Audio power amplifier connects left speaker (audio amplifier) 3, R channel output connects right speaker (audio amplifier) 4, and subwoofer channel connects loudspeaker unit 7.L channel is electroacoustic be connected with connection and the subwoofer channel of right speaker 4 with the connection of subwoofer 2 with the connection of left speaker 3, R channel.The Audio power amplifier output of television set 1 can also only have two-way, namely 2.0, as shown in Figure 10, i.e. L channel output and R channel output, at this moment will pass through two LC high pass filters and connect left and right speaker (audio amplifier) 3,4, connecting loudspeaker unit 7 again through two LC low pass filters, each LC low pass filter connects the loudspeaker unit of 50%；Connected mode is that the output of left audio power connects left speaker 3 by a LC high pass filter, and connects the loudspeaker unit 7 of half quantity in subwoofer 2 by a LC low pass filter；The output of described right audio channel power connects right speaker 4 by another LC high pass filter, and connects the loudspeaker unit 7 of second half quantity in subwoofer 2 by another LC low pass filter.
Left speaker 3 and the right speaker 4 of television set 1 of the present invention also can be separately mounted in the big casing 5 of subwoofer 2, and are symmetrical arranged, as shown in Figure 7 A, 7 B.
The operation principle of the present invention is:
When television set 1 works, L (left side) sound channel of its audio power output puts on left speaker (audio amplifier) 3, R (right side) sound channel and puts on right speaker (audio amplifier) 4；Meanwhile, low frequency power output puts on the loudspeaker unit 7 of subwoofer 2, and all loudspeaker units 7 complete electroacoustic conversion, produce sound.All loudspeaker units 7 all acoustics homophases due to subwoofer 2, the i.e. vibrating diaphragm of all loudspeaker units 7 or vibrations in small box 6 simultaneously, shake outside big casing 5 direction and small box 6 simultaneously, when the vibrating diaphragm of all loudspeaker units 7 is to vibrations in small box 6, just have compressed the air in small box 6, the air pressure in small box 6 is made to strengthen, more than atmospheric pressure, thus the air in compressing small box 6 flow to ambient air by the second phonocatheter 11 and the second outlet sound mouth 10, decrease in air pressure in big casing 5 simultaneously, less than atmospheric pressure, air just flow in big casing 5 from ambient air through the first outlet sound mouth 8 and the first phonocatheter 9 simultaneously；When all loudspeaker units 7 shake to big casing 5 direction simultaneously, just have compressed the air in big casing 5, make big casing 5 intrinsic pressure powerful in environment atmospheric pressure, the air thus oppressed in big casing 5 flow to airspace through the first phonocatheter 9 and the first outlet sound mouth 8, in small box 6, atmospheric pressure reduces simultaneously, atmospheric air flow in small box 6 through the second outlet sound mouth 10 and the second phonocatheter 11 again, the flowing of such air is exactly that information stream is at big casing 5, first phonocatheter 9, first outlet sound mouth 8, small box 6, flow between second phonocatheter 11 and the second outlet sound mouth 10.Information stream, in this flows repeatedly, produces low-frequency sound wave resonance by large and small casing 5,6 and first and second phonocatheter 9,11, makes low-frequency sound wave be greatly enhanced, make low-frequency sound simpler and more honest, full, mellow and full simultaneously.And intermediate frequency high frequency sound wave is by a left side, right speaker (audio amplifier) 3, 4 are directly radiated listening volume, it is clear just to obtain, loud, interesting to listen to middle pitch and high pitch, such full acoustic frequency just can obtain gratifying sound, improve to subversiveness the sound play quality of panel TV set, and subwoofer 2 volume is only small, very light in weight, especially very thin thickness, can be advantageously mounted in television set 1, or design is entered when designing television set 1 bonnet, while television set 1 is thin, sound is good again, successfully solve panel TV set and do thinner and thinner, sound global problem worse and worse.Panel TV set is made to become image good, the double; two good TV of sound.
The television set of the built-in double-case bass big gun of the present invention, subwoofer 2 that it is built-in and two, left and right speaker (audio amplifier) 3,4, subwoofer 2 have employed case raising middle flask nested type body structure, two casings each own oneself outlet sound mouths and phonocatheter.Under the audio power of television set drives, medium-high frequency sound wave is directly radiated space by two speakers (audio amplifier), and all-bottom sound air-flow flows between two casings of subwoofer and two phonocatheters and two outlet sound mouths and between ambient air, formation all-bottom sound resonates, and produces powerful low-frequency sound wave, and subwoofer volume is little, thickness is thin, cost is low, when keeping panel TV set thin, and the problem successfully solving panel TV set sound difference.
The television set of the present invention is under the driving of tv audio power amplifier, the loudspeaker unit of loudspeaker unit completes electroacoustic conversion, produce all-bottom sound air-flow, information stream realizes merging by two casings, and send powerful low-frequency sound wave through two phonocatheters and two outlet sound mouths, with only small loudspeaker unit (such as diameter 45mm speaker), just can send the low-frequency sound wave that shock is full, volume is only small, especially very thin thickness (as only 53mm is thick) can be easily installed on existing panel TV set, and intermediate frequency high frequency sound wave can be directly radiated listening volume by left and right speaker, realize the perfect playback of full acoustic frequency, thus solving the world-famous puzzle that panel TV set sound is bad very well.The double-case bass big gun of the present invention can be not only used for television set, it is also possible to performs well in sound system.
Claims (13)
1. a double-case bass big gun, it is characterized in that: include big casing (5), small box (6), loudspeaker unit (7), first phonocatheter (9) and the second phonocatheter (11), wherein small box (6) is arranged in big casing (5), it is polygonal column that described big casing (5) and small box (6) are end face, described small box (6) at least one end face is coplanar with the end face of big casing (5), and have the second outlet sound mouth (10) on the coplanar end face of described big casing (5) and small box (6), it is provided with in described small box (6) and is connected with ambient air by this second outlet sound mouth (10), second phonocatheter (11) of conducted acoustic waves air-flow between small box (6) and ambient air；Described big casing (5) has the first outlet sound mouth (8), be provided with in this big casing (5) be connected with ambient air by described first outlet sound mouth (8), first phonocatheter (9) of conducted acoustic waves air-flow between big casing (5) and ambient air；Described first outlet sound mouth (8) is opened in end face or the upper side, polygon place or coplanar with described second outlet sound mouth (10) of big casing (5) of big casing (5) other end；Described small box (6) is provided with loudspeaker unit (7).
2. a double-case bass big gun, it is characterized in that: include big casing (5), small box (6), loudspeaker unit (7), first phonocatheter (9) and the second phonocatheter (11), wherein small box (6) is arranged in big casing (5), it is polygonal column that described big casing (5) and small box (6) are end face, the either side of the upper side, polygon place of described small box (6) is coplanar with the either side of the upper side, polygon place of big casing (5), and have the second outlet sound mouth (10) on the coplanar side of described big casing (5) and small box (6), it is provided with in described small box (6) and is connected with ambient air by this second outlet sound mouth (10), second phonocatheter (11) of conducted acoustic waves air-flow between small box (6) and ambient air；Described big casing (5) has the first outlet sound mouth (8), be provided with in this big casing (5) be connected with ambient air by described first outlet sound mouth (8), first phonocatheter (9) of conducted acoustic waves air-flow between big casing (5) and ambient air；Described first outlet sound mouth (8) is opened in end face or the upper side, polygon place of big casing (5) of big casing (5) either end；Except other sides coplanar with big casing (5) are provided with loudspeaker unit (7) in the upper side, polygon place of described small box (6).
null3. a double-case bass big gun，It is characterized in that: include big casing (5)、Small box (6)、Loudspeaker unit (7)、First phonocatheter (9) and the second phonocatheter (11)，Wherein small box (6) is arranged in big casing (5)，It is polygonal column that described big casing (5) and small box (6) are end face，Described big casing (5) has the first outlet sound mouth (8) and the second outlet sound mouth (10)，It is provided with in this big casing (5) and is connected with ambient air by described first outlet sound mouth (8)、First phonocatheter (9) of conducted acoustic waves air-flow between big casing (5) and ambient air，One end of described second phonocatheter (11) is arranged on big casing (5) and offers the position of the second outlet sound mouth (10)，The other end inserts in described small box (6)，It is connected with ambient air by this second phonocatheter (11) and the second outlet sound mouth (10) in described small box (6)，And by conducted acoustic waves air-flow between described second phonocatheter (11) and ambient air；Described small box (6) is provided with loudspeaker unit (7) on upper side, polygon place.
4. by the double-case bass big gun described in claim 1,2 or 3, it is characterised in that: the end face of described big casing (5) and small box (6) is regular polygon, and limit number is equal.
5. by the double-case bass big gun described in claim 1,2 or 3, it is characterised in that: the either side in the upper side, polygon place of described big casing (5) is curved surface.
6. by the double-case bass big gun described in claim 1,2 or 3, it is characterized in that: the area of described first outlet sound mouth (8) more than or equal to the area of the second outlet sound mouth (10), this first and second outlet sound mouth (8,10) be shaped as polygon or circle；The face area of described first phonocatheter (9) is more than or equal to the face area of the second phonocatheter (11), and the length of this first phonocatheter (9) is more than the length of described second phonocatheter (11).
7. by the double-case bass big gun described in claim 6, it is characterized in that: the end surface shape of described first phonocatheter (9) is corresponding with the shape of the first outlet sound mouth (8), the end surface shape of described second phonocatheter (11) is corresponding with the shape of the second outlet sound mouth (10).
8. by the double-case bass big gun described in claim 1,2 or 3, it is characterized in that: the loudspeaker unit (7) on described small box (6) is acoustics homophase and installs, namely described loudspeaker unit (7) sounding vibrations direction synchronizes, loudspeaker unit vibrating diaphragm is simultaneously to described small box (6) internal vibration, or vibrates outward to described small box (6) simultaneously.
9. a built-in television set by double-case bass big gun described in claim 1,2 or 3, it is characterized in that: include subwoofer (2), left speaker (3) and right speaker (4), described subwoofer (2) is arranged on the back side of television set (1), described left speaker (3) and right speaker (4) are identical speaker, in the left and right sides being symmetrically mounted on described television set (1) or the big casing (5) being separately mounted to described subwoofer (2), and it is symmetrical arranged.
10. by the television set described in claim 9, it is characterised in that: the end face of described big casing (5) and small box (6) is regular polygon, and limit number is equal；Either side in the upper side, polygon place of described big casing (5) is curved surface.
11. by the television set described in claim 9, it is characterized in that: the area of described first outlet sound mouth (8) more than or equal to the area of the second outlet sound mouth (10), this first and second outlet sound mouth (8,10) be shaped as polygon or circle；The face area of described first phonocatheter (9) is more than or equal to the face area of the second phonocatheter (11), and the length of this first phonocatheter (9) is more than the length of described second phonocatheter (11)；The end surface shape of described first phonocatheter (9) is corresponding with the shape of the first outlet sound mouth (8), and the end surface shape of described second phonocatheter (11) is corresponding with the shape of the second outlet sound mouth (10).
12. by the television set described in claim 9, it is characterized in that: described television set (1) has L channel, R channel and the output of subwoofer channel three road audio power, described L channel connects left speaker (3), described R channel connects right speaker (4), described subwoofer channel connects the loudspeaker unit (7) in subwoofer (2), and described L channel is electroacoustic be connected with connection and the subwoofer channel of right speaker (4) with the connection of subwoofer (2) with the connection of left speaker (3), R channel.
13. by the television set described in claim 9, it is characterized in that: described television set (1) has L channel and the output of R channel two-way audio power, its connected mode is that the output of left audio power connects left speaker (3) by a LC high pass filter, and connects the loudspeaker unit (7) of half quantity in subwoofer (2) by a LC low pass filter；The output of described right audio channel power connects right speaker (4) by another LC high pass filter, and connects the loudspeaker unit (7) of second half quantity in subwoofer (2) by another LC low pass filter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410843906.XA CN105812988A (en) | 2014-12-30 | 2014-12-30 | Dual-box subwoofer and television set internally provided with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410843906.XA CN105812988A (en) | 2014-12-30 | 2014-12-30 | Dual-box subwoofer and television set internally provided with same |
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| CN105812988A true CN105812988A (en) | 2016-07-27 |
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| CN201410843906.XA Pending CN105812988A (en) | 2014-12-30 | 2014-12-30 | Dual-box subwoofer and television set internally provided with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11445302B2 (en) * | 2018-11-27 | 2022-09-13 | Apple Inc. | Dual loudspeaker enabled cooling |
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