CN201479351U - Sound box structure for improving low-frequency playback - Google Patents
Sound box structure for improving low-frequency playback Download PDFInfo
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- CN201479351U CN201479351U CN2009201668912U CN200920166891U CN201479351U CN 201479351 U CN201479351 U CN 201479351U CN 2009201668912 U CN2009201668912 U CN 2009201668912U CN 200920166891 U CN200920166891 U CN 200920166891U CN 201479351 U CN201479351 U CN 201479351U
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- low frequency
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Abstract
The utility model provides a sound box structure for improving low-frequency playback, comprising a unit 1, a unit 2, an air pipe, a low-frequency acoustic-conducting channel, a low-frequency acoustic-conducting channel outlet and a sound chamber, wherein the sound chamber and the low-frequency acoustic-conducting channel are two separated spaces and are communicated by the air pipe; one side of the low-frequency acoustic-conducting channel is connected with the low-frequency acoustic-conducting channel outlet; the ratio of the volume of the sound chamber to that of the low-frequency acoustic-conducting channel is 2.5 to 4:1. The sound box structure for improving the low-frequency playback can obviously improve the low-frequency playback of a bass speaker unit.
Description
Technical field
The utility model relates to the Hi-Fi sound-box technical field, particularly a kind of loudspeaker box structure that promotes the low frequency playback.
Background technology
At present, the audio amplifier that has on the market has: bugle formula, labyrinth type, sealed type and inverted phase type, wherein sealed type and inverted phase type account for very big proportion on market.Phase inverted cabinet also is the bass reflex audio amplifier.Compare with the closed audio amplifier, difference is that phase inverted cabinet opens an additional holes (paraphase hole) on casing, the sound of low loudspeaker unit back in being used for discharging, and the air quality in the hole plays with cone and similarly acts on.Thereby formed an additional acoustic radiator, and mainly on the resonance frequency of phase inverted cabinet, worked.When the design phase inverted cabinet, the designer selects the resonance frequency of phase inverted cabinet to such an extent that equal or is lower than the resonance frequency fo of loudspeaker unit slightly (FO is the resonance frequency of loudspeaker unit, the frequency response that also is loudspeaker unit reduction audio frequency is rolled off the production line), purpose is to make phase inverted cabinet the paraphase of the sound wave at the loudspeaker unit back side through 180 degree, be transformed into sound wave with loudspeaker unit front same phase, reflect via paraphase hole, therefore, improve the low frequency radiation ability of audio amplifier, increase the output of low frequency.
As everyone knows, loudspeaker unit all has a basic resonance point fo, and on this frequency, the sound of output is with maximum, and distortion simultaneously is also maximum, and as not controlled, the unevenness that causes case low-frequency band to reset strengthens, and balance degenerates, and distortion sharply increases.But because some architectural characteristics of reflex cabinet itself, do just difficulty relatively of a high-quality phase inverted cabinet,, low frequency to have performance well just to be not easy more especially with 4 cun or come deisgn product with lower unit.
Suppose that box shape is selected with a audio amplifier of inverted phase type structural design, sound chamber's capacity is also determined by the requirement of unit, the loudspeaker unit parameter is all good, but through debugging repeatedly, all fail to get a desired effect in the bass aspect, be not that low frequency rolls off the production line is exactly the sympathetic response sound of casing inadequately.Audio amplifier the designer all know, because the architectural characteristic of phase inverted cabinet, in the time of the design phase inverted cabinet, is or the outlet of phase-reversing tube forwards, sound directly delivered to the auditor; Behind casing, utilize the outlet of phase-reversing tube design object to give the auditor acoustic reflection.Doing phase inverted cabinet when design, it is just important especially how could to give full play to its optkmal characteristics to the characteristic of a middle bass horn unit.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of loudspeaker box structure that low frequency is reset that promotes is provided.
The utility model relates to a kind of Hi-Fi sound-box structure, (FO is the resonance frequency of loudspeaker unit particularly to relate to a kind of F0, the frequency response that also is loudspeaker unit reduction audio frequency is rolled off the production line) and F0 its characteristics of loudspeaker box structure of resetting with lower frequency be: inside, sound chamber has an airduct and low frequency to lead passage to link to each other, and there is a reflecting curtain at the wind tube outlet place.Its characteristics are: audio amplifier inside utilizes one or more airduct and one or more low frequency to lead passage by one or more sound chambers to be connected.
Sound chamber and leading between the sound channel is connected by airduct, cooperate with the sound chamber according to parametric loudspeaker, adjust the big or small length of airduct and the distance between airduct and the reflecting curtain, realize the whole low frequency lifting of audio amplifier and reduce low-frequency distortion, and utilize low frequency to lead passage and the sound wave that reflects of middle bass horn unit is drafted direction by the designer give off the sound wave that in air, sends and combine, thereby further promote the sense of hearing and the sound field degree of depth that low frequency rolls off the production line with the front of loudspeaker unit.
A kind of loudspeaker box structure that promotes the low frequency playback, comprise that two unit, airduct, low frequencies are led passage and low frequency is led channel outlet, sound chamber, it is two spaces independently that sound chamber and low frequency are led passage, sound chamber and low frequency are led passage and are connected by airduct, and low frequency is led passage and led channel outlet with low frequency on one side and link to each other; The volume ratio that the volume of sound chamber and low frequency are led passage is 2.5～4: 1.
Described two unit are for being the identical subwoofer or the loudspeaker of full range.
Described sound chamber is made up of top board, base plate, panel, vertical clapboard, diaphragm plate, left plate and right plate.
Described low frequency is led passage and is made up of top board, base plate, back plate, diaphragm plate, vertical clapboard, left plate and right plate.
A kind of loudspeaker box structure that promotes the low frequency playback, comprise that two unit, unit, airduct, low frequencies are led passage and low frequency is led channel outlet, sound chamber, a described unit is the subwoofer or the loudspeaker of full range, it is two spaces independently that sound chamber and low frequency are led passage, sound chamber and low frequency are led passage and are connected by airduct, and low frequency is led passage and led channel outlet with low frequency on one side and link to each other; The volume ratio that the volume of sound chamber and low frequency are led passage is 2.5～4: 1.
Described sound chamber is made up of top board, base plate, panel, vertical clapboard, diaphragm plate, left plate and right plate.
Described low frequency is led passage and is made up of top board, base plate, back plate, diaphragm plate, vertical clapboard, left plate and right plate.
A kind of two frequency division gamuts promote the audio amplifier knot that low frequency is reset, comprise that two unit, airduct, low frequencies are led passage and low frequency is led channel outlet, sound chamber, it is two spaces independently that sound chamber and low frequency are led passage, sound chamber and low frequency are led passage and are connected by airduct, and low frequency is led passage and led channel outlet with low frequency on one side and link to each other; The volume ratio that the volume of sound chamber and low frequency are led passage is 2.5～4: 1.
Described one of them unit is a loudspeaker, and another unit is middle bass horn.
Described sound chamber is made up of top board, base plate, panel, vertical clapboard, diaphragm plate, left plate and right plate; Low frequency is led passage and is made up of top board, base plate, back plate, diaphragm plate, vertical clapboard, left plate and right plate;
Beneficial effect
The loudspeaker box structure that lifting low frequency of the present utility model is reset: under equal loudspeaker unit parameter, can obviously improve the low frequency frequency range of bass horn unit and reset, thereby the frequency response of rolling off the production line of loudspeaker unit low frequency is given full play to.
Description of drawings
Fig. 1 is that the utility model two frequency divisions promote the loudspeaker box structure cutaway view that low frequency is reset.
Fig. 2 is that two frequency divisions promote the loudspeaker box structure principle schematic that low frequency is reset.
Fig. 3 is that the utility model promotes the loudspeaker box structure cutaway view that low frequency is reset.
Fig. 4 promotes the loudspeaker box structure principle schematic that low frequency is reset.
Fig. 5 is that the utility model promotes the loudspeaker box structure cutaway view that low frequency is reset.
Fig. 6 promotes the loudspeaker box structure principle schematic that low frequency is reset.
Fig. 7 is the utility model structural principle 3 D anatomical figure.
Embodiment
Of the present utility modelly realize by the following method, the utility model elaborated below in conjunction with accompanying drawing:
Fig. 1,2 one kind of two frequency division gamut promote the audio amplifier knot that low frequency is reset:
Comprise that unit 1, unit 2, airduct 9, sound chamber, low frequency are led passage and low frequency is led channel outlet 10, its characteristic is a frequency complementary, and wherein the sound chamber is made up of top board 1, base plate 2, panel 3, vertical clapboard 6, diaphragm plate 5, left plate 7 and right plate 8; Low frequency is led passage and is made up of top board 1, base plate 2, back plate 4, diaphragm plate 5, vertical clapboard 6, left plate 7 and right plate 8; It is two spaces independently that sound chamber and low frequency are led passage, and sound chamber and low frequency are led passage and be connected by airduct 9, and low frequency is led passage and led channel outlet 10 with low frequency on one side and link to each other; The volume ratio that the volume of sound chamber and low frequency are led passage is 2.5～4: 1.
A kind ofly shown in Fig. 3,4 promote the loudspeaker box structure that low frequency is reset: whole loudspeaker box structure is led passage and low frequency by sound chamber, airduct, low frequency and is led channel outlet and form; Wherein the sound chamber is made up of top board 1, base plate 2, panel 3, vertical clapboard 6, diaphragm plate 5, left plate 7 and right plate 8; Low frequency is led passage and is made up of top board 1, base plate 2, back plate 4, diaphragm plate 5, vertical clapboard 6, left plate 7 and right plate 8.
Its architectural feature of the utility model is: it is two spaces independently that sound chamber and low frequency are led passage, and the sound chamber leads passage with low frequency and is connected by airduct 9, low frequency lead passage on one side and low frequency lead channel outlet 10 and be connected.
The volume ratio that the volume of sound chamber and low frequency are led passage is 2.5～4: 1.
Use two the identical subwoofers or the loudspeaker unit of full range.
A kind ofly shown in Fig. 5,6 promote the loudspeaker box structure that low frequency is reset: whole loudspeaker box structure is led passage and low frequency by sound chamber, airduct, low frequency and is led channel outlet and form; Wherein the sound chamber is made up of top board 1, base plate 2, panel 3, vertical clapboard 6, diaphragm plate 5, left plate 7 and right plate 8; Low frequency is led passage and is made up of top board 1, base plate 2, back plate 4, diaphragm plate 5, vertical clapboard 6, left plate 7 and right plate 8.
Its architectural feature of the utility model is: it is two spaces independently that sound chamber and low frequency are led passage, and the sound chamber leads passage with low frequency and is connected by airduct 9, low frequency lead passage on one side and low frequency lead channel outlet 10 and be connected.
The volume ratio that the volume of sound chamber and low frequency are led passage is 2.5～4: 1.
Use a subwoofer or the loudspeaker of full range.
Fig. 7 is the utility model structural principle 3 D anatomical figure.
Comprise that unit 1, unit 2, airduct 9, sound chamber, low frequency are led passage and low frequency is led channel outlet 10, its characteristic is a frequency complementary, and wherein the sound chamber is made up of top board 1, base plate 2, panel 3, vertical clapboard 6, diaphragm plate 5, left plate 7 and right plate 8; Low frequency is led passage and is made up of top board 1, base plate 2, back plate 4, diaphragm plate 5, vertical clapboard 6, left plate 7 and right plate 8; It is two spaces independently that sound chamber and low frequency are led passage, and sound chamber and low frequency are led passage and be connected by airduct 9, and low frequency is led passage and led channel outlet 10 with low frequency on one side and link to each other; The volume ratio that the volume of sound chamber and low frequency are led passage is 2.5～4: 1, and unit 1 is a loudspeaker, and unit 2 is middle bass horn.
Claims (10)
1. one kind promotes the loudspeaker box structure that low frequency is reset, comprise that unit (1), unit (2), airduct (9), low frequency are led passage and low frequency is led channel outlet (10), sound chamber, it is characterized in that, it is two spaces independently that sound chamber and low frequency are led passage, sound chamber and low frequency are led passage and are connected by airduct (9), and low frequency is led passage and led channel outlet (10) with low frequency on one side and link to each other; The volume ratio that the volume of sound chamber and low frequency are led passage is 2.5～4: 1.
2. the loudspeaker box structure that lifting low frequency according to claim 1 is reset is characterized in that described unit (1) is the identical subwoofer or the loudspeaker of full range with unit (2).
3. the loudspeaker box structure that lifting low frequency according to claim 1 is reset is characterized in that described sound chamber is made up of top board (1), base plate (2), panel (3), vertical clapboard (6), diaphragm plate (5), left plate (7) and right plate (8).
4. the loudspeaker box structure that lifting low frequency according to claim 1 is reset is characterized in that, described low frequency is led passage and is made up of top board (1), base plate (2), back plate (4), diaphragm plate (5), vertical clapboard (6), left plate (7) and right plate (8).
5. one kind promotes the loudspeaker box structure that low frequency is reset, comprise that unit (1), unit (2), airduct (9), low frequency are led passage and low frequency is led channel outlet (10), sound chamber, it is characterized in that, described unit (1) is the subwoofer or the loudspeaker of full range, it is two spaces independently that sound chamber and low frequency are led passage, sound chamber and low frequency are led passage and are connected by airduct (9), and low frequency is led passage and led channel outlet (10) with low frequency on one side and link to each other; The volume ratio that the volume of sound chamber and low frequency are led passage is 2.5～4: 1.
6. the loudspeaker box structure that lifting low frequency according to claim 5 is reset is characterized in that described sound chamber is made up of top board (1), base plate (2), panel (3), vertical clapboard (6), diaphragm plate (5), left plate (7) and right plate (8).
7. the loudspeaker box structure that lifting low frequency according to claim 5 is reset is characterized in that, described low frequency is led passage and is made up of top board (1), base plate (2), back plate (4), diaphragm plate (5), vertical clapboard (6), left plate (7) and right plate (8).
8. a frequency division gamut promotes the audio amplifier knot that low frequency is reset, comprise that unit (1), unit (2), airduct (9), low frequency are led passage and low frequency is led channel outlet (10), sound chamber, it is characterized in that: it is two spaces independently that sound chamber and low frequency are led passage, sound chamber and low frequency are led passage and are connected by airduct (9), and low frequency is led passage and led channel outlet (10) with low frequency on one side and link to each other; The volume ratio that the volume of sound chamber and low frequency are led passage is 2.5～4: 1.
9. the loudspeaker box structure that lifting low frequency according to claim 8 is reset is characterized in that described unit (1) is loudspeaker, and unit (2) are middle bass horn.
10. the loudspeaker box structure that lifting low frequency according to claim 9 is reset is characterized in that described sound chamber is made up of top board (1), base plate (2), panel (3), vertical clapboard (6), diaphragm plate (5), left plate (7) and right plate (8); Low frequency is led passage and is made up of top board (1), base plate (2), back plate (4), diaphragm plate (5), vertical clapboard (6), left plate (7) and right plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201668912U CN201479351U (en) | 2009-07-22 | 2009-07-22 | Sound box structure for improving low-frequency playback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201668912U CN201479351U (en) | 2009-07-22 | 2009-07-22 | Sound box structure for improving low-frequency playback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201479351U true CN201479351U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201668912U Expired - Fee Related CN201479351U (en) | 2009-07-22 | 2009-07-22 | Sound box structure for improving low-frequency playback |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201479351U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024628A (en) * | 2013-01-06 | 2013-04-03 | 康东兴 | Mechanical frequency division voice box |
| CN105493517A (en) * | 2013-04-30 | 2016-04-13 | 李光熙 | Speaker apparatus |
| CN110677749A (en) * | 2019-09-25 | 2020-01-10 | 舒榻（厦门）智能科技有限公司 | Wireless stereo set that charges |
-
2009
- 2009-07-22 CN CN2009201668912U patent/CN201479351U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024628A (en) * | 2013-01-06 | 2013-04-03 | 康东兴 | Mechanical frequency division voice box |
| CN103024628B (en) * | 2013-01-06 | 2015-01-21 | 康东兴 | Mechanical frequency division voice box |
| CN105493517A (en) * | 2013-04-30 | 2016-04-13 | 李光熙 | Speaker apparatus |
| CN110677749A (en) * | 2019-09-25 | 2020-01-10 | 舒榻（厦门）智能科技有限公司 | Wireless stereo set that charges |
| CN110677749B (en) * | 2019-09-25 | 2020-10-13 | 舒榻（厦门）智能科技有限公司 | Wireless stereo set that charges |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Harbin cnc-it technology Limited by Share Ltd Assignor: Zhang Gao Contract record no.: 2013230001811 Denomination of utility model: Sound box structure for improving low-frequency playback Granted publication date: 20100519 License type: Exclusive License Record date: 20131023 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20160722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |