CN1078085A - Bass sound box with two extending sound pipes - Google Patents
Bass sound box with two extending sound pipes Download PDFInfo
- Publication number
- CN1078085A CN1078085A CN 92103560 CN92103560A CN1078085A CN 1078085 A CN1078085 A CN 1078085A CN 92103560 CN92103560 CN 92103560 CN 92103560 A CN92103560 A CN 92103560A CN 1078085 A CN1078085 A CN 1078085A
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- China
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- sound
- guide tube
- extension
- audio amplifier
- sound guide
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Abstract
A kind of woofer with two extension sound guide tubes, its loudspeaker are wrapped up in the sound box fully, extension sound guide tube before and after casing chamber, front and back before and after the loudspeaker cone is respectively equipped with, the positive and negative phase sound of loudspeaker is derived, and front and back extension sound guide tube relative length meets the bass frequencies characteristic, and this woofer volume is little, utilize positive and negative phase sound simultaneously, the efficient height can be provided with arbitrarily, is specially adapted to triple channel (3D) stereophonic sound system.
Description
The invention belongs to sound equipment, particularly the new design of loudspeaker box structure.
Common woofer adopts two kinds of designs, and is promptly closed and reflective.Though closed audio amplifier volume is less, has only utilized positive sound.Reflective audio amplifier has then utilized positive and negative cross-talk, but volume is bigger.And the cone face of common speaker all is embedded on the tank wall of audio amplifier, directly outwards plays sound, like this, because the volume of woofer is big, and the one side that is embedded with loudspeaker must be exposed, just make troubles to setting, particularly more outstanding under the situation of environmental limitations.With the immediate technology of the present invention, be " the anti-phase sound conduit audio amplifier of band extension " that the inventor applied for to Patent Office of the People's Republic of China on October 17th, 1991, (application number 91226936.7) utility model patent, though this technology solves and utilizes anti-phase sound and make audio amplifier volume problem of smaller, but still unresolved above-mentioned audio amplifier is provided with problem, particularly in triple channel, (3D) in the stereophonic sound system, the high mediant trumpet of left and right acoustic channels is provided with respectively, woofer just replenishes bass, create the effect of atmosphere, be provided with under can be the more careless situation
Just wish to have a kind of woofer that can arbitrarily be provided with more, the present invention needs at this and proposes.
The purpose of this invention is to provide a kind of woofer, not only can utilize positive and negative phase sound simultaneously, and, its setting can be more careless, and whole audio amplifier can be surrounded by other furniture, even can be loaded on the furniture the inside, sound mouth only accounts for the very little place of furniture surface, makes indoor environment both artistic and practical.
The object of the present invention is achieved like this:
Woofer of the present invention, constitute by loudspeaker and sound box, loudspeaker are contained fully in sound box, between the sound box wall of loudspeaker basin front and back certain space is arranged respectively, casing chamber and rear cabinet body cavity before constituting, in the past, extension sound guide tube and back extension sound guide tube before drawing respectively on the rear cabinet body cavity, the sound that loudspeaker send is by preceding, back extension sound guide tube is emitted, preceding extension sound guide tube is derived the positive sound of loudspeaker, back extension sound guide tube is derived the anti-phase sound of loudspeaker, therefore, before, the length of back extension sound guide tube has necessarily poor, so that the sound phase place in extension sound guide tube exit, front and back is identical, to strengthen the effect of bass, promptly before, the relative length of back extension sound guide tube should meet the audio bass frequency characteristic.The extension sound guide tube of audio amplifier of the present invention can be a hard tube, also can be flexible pipe, if hard tube then can be connected by straight tube and bend pipe and forms, can connect and is arbitrary shape; If flexible pipe, then tube wall has certain thickness, does not cause resonance degree of being to guarantee the extension sound conduit.
From technique scheme as seen, woofer of the present invention, loudspeaker are wrapped up in the casing fully, and by two extension sound guide tube broadcasts, therefore, audio amplifier needn't be exposed to the outside, only the outlet of extension sound guide tube need be exposed to the outside gets final product, and the design of the shape of audio amplifier can be very flexible, can design audio amplifier according to size, the shape in space fully, and do not influence acoustics and the position of particularly loudspeaker attractive in appearance in the sound box with sound casing can be designed arbitrarily, as tilting, horizontal etc., the volume of audio amplifier is dwindled greatly.Particularly in triple channel (3D) sound system, because senior middle school's sound box with sound of left and right acoustic channels is provided with in addition, being provided with of woofer can be compared well at will, so meaning is more remarkable.
Below in conjunction with description of drawings several embodiments of the present invention are described:
Fig. 1: bass sound box with two extending sound pipes schematic appearance;
Fig. 2: bass sound box with two extending sound pipes generalized section;
Fig. 3: the audio amplifier generalized section that loudspeaker are tilting;
Fig. 4: the audio amplifier generalized section of loudspeaker horizontal;
Fig. 5: sound box is columnar audio amplifier schematic diagram;
Fig. 6: the audio amplifier generalized section that two extension sound guide tubes connect outside casing;
Fig. 7: extension sound guide tube cross section is tetragonal audio amplifier schematic diagram;
Fig. 8: extension sound guide tube cross section is the audio amplifier schematic diagram of quadrangle and connection outside casing;
Fig. 9: audio amplifier is positioned over generalized section in the furniture cabinet;
Figure 10: audio amplifier is positioned over generalized section in the back seat;
Figure 11: two extension sound guide tube audio amplifiers are used schematic diagram in triple channel (3D) system.
Among the figure: 1, bass horn, 2, sound box, 3, preceding extension sound guide tube, 4, back extension sound guide tube, 5, preceding casing chamber, 6, the rear cabinet body cavity, 7, the loudspeaker lead, 8, extension sound guide tube sound mouth, 9, junction, 10, extension, 11, the furniture cabinet, 12, wall, 13, automobile, 14, the input signal interface, 15, transformer, 16, power amplifier, 17, the high mediant trumpet of L channel, 18, the high mediant trumpet of R channel, 19, bass amplifier, 20, low pass filter, 21, the partial circuit.
First embodiment of the present invention, as shown in Figure 3, loudspeaker 1 are inclined in the sound box 2, form two leg-of-mutton forward and backward casing chambeies 5,6, and forward and backward extension sound guide tube 3,4 the past, rear cabinet body cavity 5,6 is respectively drawn.
Second embodiment of the present invention, as shown in Figure 4, loudspeaker 1 are flat in the sound box 2, draw in the preceding preceding casing chamber 5 of extension sound guide tube 3 above being positioned at, 4 of back extension sound guide tubes pass top preceding casing chamber 5, are connected with following rear cabinet body cavity 6, make sound box 2 be flat.
The 3rd embodiment of the present invention, as shown in Figure 5, sound box 2 places on the circle cross-section of cylinder casing for the pelvic surface of sacrum of cylindrical shape loudspeaker 1, the front and back ends of cylinder casing is conical, make forward and backward casing chamber 5,6 also for conical, forward and backward extension sound guide tube 3,4 is drawn from the vertex of a cone in conical forward and backward casing chamber 5,6 respectively, to realize acoustics preferably.
The 4th example of the present invention, as shown in Figure 6, forward and backward extension sound guide tube 3,4 is connected in junction 9 in the relative length place that meets the bass frequencies characteristic after drawing from forward and backward sound box chamber 5,6, merge into extension 10, positive and negative phase sound is derived by extension 10.
The 5th embodiment of the present invention, shown in Fig. 7,8, the cross section of forward and backward extension sound guide tube 3,4 is a quadrangle, and placed side by side, constitutes a thick plate-like.
In addition, extension sound guide tube 3,4 of the present invention also can be socketed to form by the sleeve pipe that the Tibetan could be pulled out and overlap to two to five joints.
Fig. 9 is positioned over application schematic diagram in the furniture cabinet 11 with audio amplifier, only extension sound guide tube 3,4 or extension 10 is caused the shelter on furniture cabinet surface, and sound is broadcasted; Figure 10 is positioned over audio amplifier in the back seat, and it is indoor that extension sound guide tube 3,4 or extension 10 are caused car steering, and sound is broadcasted; Figure 11 is woofer of the present invention examples of applications in triple channel (3D) stereophonic sound system.Fig. 9,10,11 is an examples of applications of the present invention, is not direct technology content of the present invention, for your guidance.
Claims (9)
1, a kind of woofer, constitute by loudspeaker 1 and sound box 2, it is characterized in that loudspeaker 1 are contained fully in sound box 2, between loudspeaker cone front and back and the audio amplifier wall certain space is arranged respectively, casing chamber 5 and rear cabinet body cavity 6 before constituting, in the past, rear cabinet body cavity 5, extension sound guide tube 3 and back extension sound guide tube 4 before drawing respectively on 6, the length of forward and backward extension sound guide tube 3,4 has necessarily poor, to meet the audio bass frequency characteristic.
2, audio amplifier as claimed in claim 1 is characterized in that the extension sound guide tube is a hard tube, and is connected by straight tube and bend pipe and to form.
3, audio amplifier as claimed in claim 1 is characterized in that the extension sound guide tube is a flexible pipe, and its pipe thickness is not to cause acoustic resonance degree of being.
4, audio amplifier as claimed in claim 1 is characterized in that loudspeaker 1 are inclined in the sound box 2.
5, audio amplifier as claimed in claim 1 is characterized in that loudspeaker 1 are flat in the sound box 2, and draw in the preceding casing chamber 5 of preceding extension sound guide tube 3 above being positioned at, and 4 of back extension sound guide tubes pass top preceding casing chamber 5 and are connected with following rear cabinet body cavity 6.
6, audio amplifier as claimed in claim 1, it is characterized in that sound box 2 is cylindrical shape, the pelvic surface of sacrum of loudspeaker 1 places on the circle cross-section of cylinder sound box, the front and back end of cylinder sound box bodies is conical, casing chamber 5,6 is conical before and after making, front and back extension sound guide tube 3,4 draw from the vertex of a cone in casing chamber, conical front and back 5,6 respectively.
7, audio amplifier as claimed in claim 1 after it is characterized in that forward and backward extension sound guide tube 3,4 rear cabinet body cavity 5,6 being drawn in the past, meets bass frequencies characteristic part at relative length and is connected in junction 9, merges into extension 10, and positive and negative phase sound is derived.
8, audio amplifier as claimed in claim 1 is characterized in that the cross section of forward and backward extension sound guide tube 3,4 is a quadrangle, is arranged side by side, and constitutes a thick plate-like.
9, audio amplifier as claimed in claim 1 is characterized in that extension sound guide tube 3,4 is that the socket pipeline that the Tibetan could be pulled out and overlap to two to five joints is socketed to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92103560 CN1078085A (en) | 1992-04-30 | 1992-04-30 | Bass sound box with two extending sound pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92103560 CN1078085A (en) | 1992-04-30 | 1992-04-30 | Bass sound box with two extending sound pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1078085A true CN1078085A (en) | 1993-11-03 |
Family
ID=4940279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92103560 Pending CN1078085A (en) | 1992-04-30 | 1992-04-30 | Bass sound box with two extending sound pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1078085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006531A (en) * | 2010-11-24 | 2011-04-06 | 东莞市达硕科技有限公司 | Sound box structure |
| CN108696799A (en) * | 2017-04-10 | 2018-10-23 | 索尼克蒂尔公司 | Play the devices and methods therefor of sound indoors using voice transmission pipeline |
-
1992
- 1992-04-30 CN CN 92103560 patent/CN1078085A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006531A (en) * | 2010-11-24 | 2011-04-06 | 东莞市达硕科技有限公司 | Sound box structure |
| CN102006531B (en) * | 2010-11-24 | 2013-06-05 | 东莞市达硕科技有限公司 | Sound box structure |
| CN108696799A (en) * | 2017-04-10 | 2018-10-23 | 索尼克蒂尔公司 | Play the devices and methods therefor of sound indoors using voice transmission pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |