CN2938664Y - Multi-mode super-bass loudspeaker box - Google Patents
Multi-mode super-bass loudspeaker box Download PDFInfo
- Publication number
- CN2938664Y CN2938664Y CNU2006200126833U CN200620012683U CN2938664Y CN 2938664 Y CN2938664 Y CN 2938664Y CN U2006200126833 U CNU2006200126833 U CN U2006200126833U CN 200620012683 U CN200620012683 U CN 200620012683U CN 2938664 Y CN2938664 Y CN 2938664Y
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- CN
- China
- Prior art keywords
- mode
- loud speaker
- audio amplifier
- loud
- amplifier according
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- Expired - Fee Related
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- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model provides a multi-mode super-bass sound box which adopts a structure with three chambers and double loudspeakers. Changing of the connection mode of the two loudspeakers can produce four operation modes so as to gain the frequency response of four different output sound pressures, resulting in the sound effect of four different characteristics.
Description
Affiliated technical field
The utility model relates to a kind of novel audio amplifier, particularly relates to a kind ofly can producing multiple multi-mode subwoofer audio amplifier with sound effect of different characteristics.
Background technology
The society progress make we live in the content relevant with stereo set become increasingly abundant, more and more higher to the requirement of sound system.Dissimilar programs needs the audio amplifier of different performance characteristics just can obtain more perfect audio reproduction, voice, drama, music each have different requirements, not happy together kinds such as the light music in the music, rock music, symphony differ from one another again, add the big dynamically subwoofer of home theater shock effect, a audio amplifier can not be finished multiple-task like this.Be several different audio amplifiers are set, and to be used for broadcasting different sound programmes unpractical in most cases, and the sound property of existing audio amplifier can't change, and so, can make a kind of multi-mode audio amplifier and finish multiple different task preferably?
Summary of the invention
The sound property of audio amplifier depends on its low frequency characteristic to a great extent, and when the sound of central high pitch frequency range remained unchanged, the acoustic characteristic that only needs to change low-frequency range just can access different sound effects.Task of the present utility model is to provide a kind of multi-mode subwoofer audio amplifier, it can realize 4 kinds of different mode of operations, obtain 4 kinds of different LF-response, can obtain multiple different sound effect, be used for adapting to different user demands with full range band audio amplifier cooperating.
This task is finished in the following way: the utility model adopts the design of twin loudspeaker three chamber structures, two identical loud speakers are installed in two same enclosed cavities, to shared atrium radiative acoustic wave, atrium and playback pipe are formed Helmholtz resonator, broadcast to space outerpace after sound wave is with general formula filtering, form the sound of the low-frequency range that we need.Adopt constant voltage output type power amplifier to drive the utility model, change 4 kinds of different loud speaker connected modes, promptly obtain 4 kinds of different mode of operations, produce the sound of 4 kinds of different qualities.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model.
Fig. 2 is a loud speaker connected mode conversion schematic diagram of the present utility model.
Fig. 3 is the frequency response curve of 4 kinds of mode of operations of the present utility model.
1 and 2 are respectively two identical loud speakers among Fig. 1, and 3 and 4 is two identical enclosed cavities, and 5 is atrium, and 6 are the playback pipe.
Conversion K switch 1, K2, K3, K4 are that 4 cuttves 4 are thrown change over switch among Fig. 2; 1 and 2 are respectively two identical loud speakers.
The frequency response of 4 kinds of different working modes shown in Figure 3 is respectively curve 1,2,3,4.
Embodiment:
An execution mode of the present utility model adopts audio amplifier shown in Figure 1, rationally selects the design of suitable loud speaker and process science for use, changes the connected mode of loud speaker again by means of change over switch shown in Figure 2, has just formed the ultralow audio amplifier of multi-mode ASW band general formula.When 1. conversion K switch 1, K2, K3, K4 among Fig. 2 are connected to, 2., 3., 4. during contact, changed the connected mode of two loud speakers, obtain 4 kinds of different mode of operations.Various mode of operations produce the frequency response curve of sound wave and see accompanying drawing 3.The connection and the frequency response of various patterns are as follows:
1. change over switch is connected in when 1. putting, two loud speakers 1 and 2 same-phase tandem workings, and impedance is 2 times of single loud speaker, and power output is 1/2 of a single loud speaker, and frequency response curve is the curve 1 among Fig. 3;
2. change over switch is connected in when 2. putting, have only loud speaker 1 work, loud speaker 2 open circuits become passive radiator, and its vibrating diaphragm vibration will consume the acoustic energy that part loud speaker 1 produces, with pattern 1 mutually the specific output acoustic pressure improve but frequency band narrows down, frequency response curve is the curve 2 among Fig. 3;
3. change over switch is connected in when 3. putting, has only loud speaker 1 work, loudspeaker voice coil 2 short circuits and produce very strong electromagnetic damping, it only may produce near the small vibration the equilbrium position, only can consume the acoustic energy that minimum a part of loud speaker 1 produces, the output acoustic pressure has raising again than pattern 2, and frequency response curve is the curve 3 among Fig. 3;
4. change over switch is connected in when 4. putting, two loud speaker same-phase parallel operations, and power output is 2 times of single loud speaker, and the output acoustic pressure is the highest, and frequency response curve is the curve 4 among Fig. 3.
Claims (6)
1, a kind of multi-mode subwoofer audio amplifier is equipped with two loud speakers in three chamber casings, it is characterized in that two loud speakers are contained in two enclosed cavities respectively, and shared atrium is equipped with the playback pipe to outside opening.
2, multi-mode subwoofer audio amplifier according to claim 1 is characterized in that 4 kinds of connected modes of two loud speakers can be thrown the change over switch change by 4 cuttves 4.
3, first kind of loud speaker connected mode of multi-mode subwoofer audio amplifier according to claim 2 is two loud speaker same-phase operated in series connection.
4, second kind of loud speaker connected mode of multi-mode subwoofer audio amplifier according to claim 2 is for having only a loud speaker connection job, and the another loud speaker opens circuit.
5, the third loud speaker connected mode of multi-mode subwoofer audio amplifier according to claim 2 is for having only a loud speaker connection job, the short circuit of another loud speaker.
6, the 4th of multi-mode subwoofer audio amplifier according to claim 2 the kind of loud speaker connected mode is two loud speaker same-phases and connects work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200126833U CN2938664Y (en) | 2006-04-11 | 2006-04-11 | Multi-mode super-bass loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200126833U CN2938664Y (en) | 2006-04-11 | 2006-04-11 | Multi-mode super-bass loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2938664Y true CN2938664Y (en) | 2007-08-22 |
Family
ID=38362692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200126833U Expired - Fee Related CN2938664Y (en) | 2006-04-11 | 2006-04-11 | Multi-mode super-bass loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2938664Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248981A (en) * | 2012-02-06 | 2013-08-14 | 王永明 | Loudspeaker |
| CN106470377A (en) * | 2015-08-18 | 2017-03-01 | 三星电子株式会社 | Speaker |
-
2006
- 2006-04-11 CN CNU2006200126833U patent/CN2938664Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248981A (en) * | 2012-02-06 | 2013-08-14 | 王永明 | Loudspeaker |
| CN103248981B (en) * | 2012-02-06 | 2016-06-01 | 王永明 | A kind of speaker |
| CN106470377A (en) * | 2015-08-18 | 2017-03-01 | 三星电子株式会社 | Speaker |
| CN106470377B (en) * | 2015-08-18 | 2021-01-26 | 三星电子株式会社 | Loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Zhi Document name: Notification of Termination of Patent Right |
|
| 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 |