CN2336533Y - Speaker system with bass filter plate - Google Patents
Speaker system with bass filter plate Download PDFInfo
- Publication number
- CN2336533Y CN2336533Y CN 98229268 CN98229268U CN2336533Y CN 2336533 Y CN2336533 Y CN 2336533Y CN 98229268 CN98229268 CN 98229268 CN 98229268 U CN98229268 U CN 98229268U CN 2336533 Y CN2336533 Y CN 2336533Y
- Authority
- CN
- China
- Prior art keywords
- audio amplifier
- woofer
- space
- hard laminate
- place
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a sound box with a bass filter plate. A wall plate of a box body is provided with a loudspeaker, wherein, the inner part of a sound box space where a bass loudspeaker is positioned in the sound box is provided with a plate made of hard material, and the space is provided with at least two subspaces which are mutually separated by the plate. Through holes of equal hole diameters are scattered and arranged on a plane surface of the plate made of hard material. The bass loudspeaker is only positioned at the wall plate of the box body of one subspace which is formed by the plate made of hard material.
Description
The utility model relates to the audio amplifier in the seehears.
For audio amplifier in the raising seehears is particularly realized the high request that high-fidelity class audio amplifier truly reduces to music to the playback reproducibility of music, existing many deep researchs on the structural design of audio amplifier, and taked many measures.As, in the position of swinging to the hole, size and quantitative improvement, to selecting for use of quality, density and the material of tank material etc.But at present in the music playback process because of of " pollution " of tank material self frequency resonance to broadcasting sound generating, particularly, good solution is not arranged as yet always to " pollution " of low frequency part music sound wave.
The purpose of this utility model is " pollution " that provides a kind of noise that helps to eliminate because of tank material self frequency resonance to be caused at the music sound wave playback time at the problems referred to above, particularly can effectively improve the audio amplifier of the bass sound wave being broadcasted quality.
The structure of the utility model audio amplifier, be provided with loud speaker at the wallboards of box body place equally, wherein being provided with in the audio amplifier space at the woofer place of audio amplifier to make this space have the hard laminates of at least two subspaces of separating mutually, be distributed with the through hole of equal aperture on this hard material board plane, woofer only is positioned at the wallboards of box body place of a sub spaces that is separated out by said hard laminate with being dispersed in.Said this hard laminate can adopt common sheet of metallic material, composite wood boards or macromolecular material plate etc.Its in the audio amplifier space at woofer place, can take to parallel with certain side box body wallboard or mutually the mode of oblique be provided with one or more, and can make the audio amplifier space at this woofer place have two or more subspaces of being separated mutually therefrom.When taking the latter, said each hard laminate that is used for separating should be arranged in the parallel stacked mode that interplanar maintains spacing distance in the audio amplifier space at woofer place, with its increase apart from loudspeaker distance, the aperture of the through hole of offering on the plate serves as better with the form of taking to reduce successively in each plate.
In the audio amplifier of different structure form, the concrete set-up mode of this hard laminate with holes that the said compartment is used also can change flexibly.For example, be in the loudspeaker box structure of same whole casing form at bass and non-woofer, said this hard laminate with holes can become the form of the separated by spaces structure between the non-woofers such as being arranged on interior high pitch that woofer and its were close to of audio amplifier or middle pitch; If woofer itself has independently woofer space, then this hard laminate also can adopt parallel with the installation wallboard of this woofer or mutually the mode of oblique be arranged on after this woofer.
On the basis of said structure, further, the pitch of holes of the through hole of being offered on the said hard laminate and the ratio in aperture are to be adopted as (3～5): 1 and/or the ratio of the gross area of the through hole offered and total plate area be adopted as (1～20): 100 o'clock serves as better.
Find in the practice,, therefore in sound box system, eliminate high frequency noise and generally relatively easily solve than eliminating low frequency noise because materials such as common foamed plastics, mineral wool can both have very high acoustic absorptivity to high frequency sound wave.And the absorption of low frequency sound wave is generally had only by the resonance mode absorption and could solve.In said structure of the present utility model, owing in the cabinet space at woofer place, be provided with the hard laminate that one or more is distributed with the equal aperture through hole with being dispersed in, when the air in this space, woofer place is made passive compression movement with the vibration of loud speaker, when compressed air passes through these through holes, it is close that its streamline becomes, flow velocity increases, and forms certain velocity gradient because of the viscosity of air.This viscous damping is enough to consume in a large number the energy that low-frequency sound wave is produced because of resonance by this through hole the time, converted sound wave to heat energy and be consumed, thereby reach purpose is filtered in the sound absorption of noise.On the other hand, because of the two sides of said this hard laminate has by mutual separated subspace, the flow velocity of gas is big more in the hole, quality is also just big more, form certain volume mass, can make the air in other subspace adjacent with subspace, woofer place form a spring-mass oscillatory system, be favourable to the sound quality of improving the bass sound wave after filtering.Simultaneously, owing in the low-frequency band wide region of the both sides broad of the own resonance frequency of this oscillatory system, all can exist power conversion, therefore with the difference of aspect factors such as material that this hard laminate adopted, thickness, through hole set on the plate is adjusted in above-mentioned parameter area, can be improved the efficient and the effect of its power conversion.
Be understood that thus above-mentioned theory structure of the present utility model obviously all is same being suitable for to the audio amplifier of various structure types and/or shape
Below foregoing of the present utility model is described further with example shown in the drawings.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.
Fig. 1 is a kind of version of the utility model audio amplifier.
Fig. 2 is the another kind of version of the utility model audio amplifier.
As shown in Figure 1, this routine audio amplifier 1 makes version in its square body casing that is in same integral form for be disposed with high pitch loudspeaker 6 and woofer 2 at one sidewall paneling place.Between this adjacent high and low sound loud speaker, form with the separated by spaces structure is provided with a material plate of material 3 such as wooden or metal that is densely covered with equal aperture through hole 4 in the plane in even mode, make the former whole cabinet space at woofer 2 places be separated into two sub spaces 5,2 of woofers are positioned at the wallboards of box body place of one of them subspace 5.The pitch of holes of the through hole of being offered on this hard laminate 34 and the ratio in aperture can be in (3～5): in 1 scope, the gross area of through hole 4 can be (1～20) with the ratio of total plate area: 100.
In audio amplifier shown in Figure 2, this woofer 2 is set in the woofer body 1 of square box form independently.After the woofer 2 in this independent case body space, paralleling with the installation wallboard of this woofer 2, and the mode parallel stacked that makes its interplanar maintain spacing distance is placed with two said hard laminates 3 that are distributed with through hole.Wherein the aperture of the through hole of being offered on the nearer plate of loud speaker 24 is greater than the aperture of the through hole of being offered on the distance loud speaker plate far away 4.Space in the woofer body 1 is separated into three sub spaces 5 by this hard laminate 3 that is distributed with through hole.
Claims (6)
1. be provided with the audio amplifier of bass acoustical filter board, the place is provided with loud speaker at wallboards of box body, it is characterized in that being provided with in the audio amplifier space at low cream loud speaker (2) place of audio amplifier (1) to make this space have the hard laminates (3) of at least two subspaces (5) of separating mutually, be distributed with the through hole (4) of equal aperture on this hard laminate (3) plane, woofer (2) only is positioned at the wallboards of box body place of a sub spaces (5) that is separated out by said hard laminate (3) with being dispersed in.
2. audio amplifier as claimed in claim 1, it is characterized in that the audio amplifier space at woofer (2) place has the subspace (5) of a plurality of said mutual separations, separating used each hard laminate (3) arranges in the parallel stacked mode that interplanar maintains spacing distance in the audio amplifier space at woofer (2) place, and with its increase apart from loud speaker (2) distance, the aperture of through hole on the plate (4) reduces successively in each plate.
3. audio amplifier as claimed in claim 1 or 2 is characterized in that said hard laminate (3) is arranged between audio amplifier (1) the interior woofer (2) and its non-woofer (6) that is close to.
4. audio amplifier as claimed in claim 1 or 2, it is characterized in that mode that said hard laminate (3) parallels with the installation wallboard with woofer (2) be arranged in the woofer space of independent form woofer (2) afterwards.
5. audio amplifier as claimed in claim 1 or 2, the pitch of holes that it is characterized in that the through hole (4) offered on the said hard laminate (3) is (3～5) with the ratio in aperture: 1.
6. audio amplifier as claimed in claim 1 or 2, the gross area that it is characterized in that the through hole (4) offered on the said hard laminate (3) is (1～20) with the ratio of total plate area: 100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229268 CN2336533Y (en) | 1998-08-11 | 1998-08-11 | Speaker system with bass filter plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229268 CN2336533Y (en) | 1998-08-11 | 1998-08-11 | Speaker system with bass filter plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2336533Y true CN2336533Y (en) | 1999-09-01 |
Family
ID=33979185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98229268 Expired - Fee Related CN2336533Y (en) | 1998-08-11 | 1998-08-11 | Speaker system with bass filter plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2336533Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656907B (en) * | 2008-08-22 | 2013-03-20 | 清华大学 | Sound box |
-
1998
- 1998-08-11 CN CN 98229268 patent/CN2336533Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656907B (en) * | 2008-08-22 | 2013-03-20 | 清华大学 | Sound box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: AOSIDA SCI. + TECH. CO., LTD., CHENGDU CITY TO: LUO DAOQUAN |
|
| CP03 | Change of name, title or address |
Address after: 610031 No. two, building three, building 21, personnel department, two alley, East Gate 2, Sichuan, Chengdu Patentee after: Luo Daoquan Address before: 610041 No. 13, Yongfeng Road, Chengdu hi tech Development Zone, Sichuan Patentee before: Aosida Science and Technology Co., Ltd., Chendu |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |