CN2575926Y - Radiating fin fixing structure - Google Patents
Radiating fin fixing structure Download PDFInfo
- Publication number
- CN2575926Y CN2575926Y CN 02276743 CN02276743U CN2575926Y CN 2575926 Y CN2575926 Y CN 2575926Y CN 02276743 CN02276743 CN 02276743 CN 02276743 U CN02276743 U CN 02276743U CN 2575926 Y CN2575926 Y CN 2575926Y
- Authority
- CN
- China
- Prior art keywords
- sound
- passage
- loud speaker
- audio amplifier
- sound absorption
- 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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- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The utility model provides a sound box, which comprises a labyrinth-type box body, and a loudspeaker, wherein, a labyrinthine passageway is arranged on the labyrinth-type box body; the loudspeaker for sound production is arranged on the box body. The utility model is characterized in that the open end of the passageway is provided with at least two loudspeakers for sound absorption; with the two loudspeakers for the sound absorption, sound waves in the passageway can be absorbed, namely the sound waves at the back face of the loudspeaker for the sound production are converted to heat energy, consequently improving the sound quality of the sound box, and thus the utility model is an ideal sound box.
Description
The utility model relates to a kind of audio amplifier, belongs to the sound equipment field.
There is following shortcoming in existing labyrinth type audio amplifier: the sound wave that the woofer back side is sent need be through spreading out of from opening part behind the tortuous passage, because these sound waves can not be changed into heat energy timely and effectively, cause them in air, will to mix, cause the deterioration of audio amplifier tonequality the most at last with the sound wave of loud speaker head-on radiation.Because the sound wave on the positive and negative two sides of loud speaker exists different phase differences under normal conditions, this also existing just unfavorable main cause of audio amplifier tonequality.Therefore, be necessary prior art is improved.
The purpose of this utility model is to overcome the deficiency of prior art, a kind of wave absorption that the loud speaker back side can be sent is provided and converts heat energy to, thereby effectively improve the audio amplifier of its tonequality.
The utility model is realized by following technical proposal: it comprises the labyrinth type casing which is provided with tortuous passageway, be located at the sounding loud speaker on the casing, it is characterized in that being provided with at least two sound absorption loud speakers, so that the sound wave in effective absorbing path at the openend of passage.Described sound absorption loud speaker is the loud speaker of voice coil loudspeaker voice coil short circuit.Described passage is that the cross section is rounded, oval, rectangle, polygonal ductway, perhaps board-like passage, and its passage length layout is camber line shape, perhaps shaped form.Described sound absorption is installation side by side with loud speaker at the access portal end, and perhaps order is installed.
The utility model compared with prior art has following advantage and effect: owing to be provided with the sound absorption loud speaker of voice coil loudspeaker voice coil short circuit at the access portal end, sound wave in the passage is absorbed, promptly allow sounding be converted to heat energy with the sound wave at the loud speaker back side, thereby improve the tonequality of audio amplifier, therefore, be a kind of comparatively desirable audio amplifier.
Fig. 1, Fig. 5, Fig. 6 are the ductway loudspeaker box structure schematic diagram of the utility model;
Fig. 2, Fig. 3, Fig. 4, Fig. 7 are the board-like passage loudspeaker box structure schematic diagram of the utility model.
Below in conjunction with accompanying drawing the utility model is described further, is not limited in this but hold within the utility model.
Among Fig. 1, Fig. 6,1 is sound box, and 2 is the shaped form passage, and its cross section is circular, and 3 are the sounding loud speaker, and 4 is the sound absorption loud speaker of voice coil loudspeaker voice coil short circuit, and order is installed on the openend of passage 2.Among Fig. 5, removing passage is curved channel 5, the cross section be square outside, all the other are all identical with Fig. 1.
Among Fig. 2, Fig. 3, Fig. 4, Fig. 7, except that 6 being the board-like passage, all the other are all identical with Fig. 1.
Claims (4)
1, a kind of audio amplifier, it comprises the labyrinth type casing which is provided with tortuous passageway, is located at the sounding loud speaker on the casing, it is characterized in that being provided with at least two sound absorption loud speakers at the openend of passage.
2, audio amplifier according to claim 1 is characterized in that described sound absorption loud speaker is the loud speaker of voice coil loudspeaker voice coil short circuit.
3, audio amplifier according to claim 1 is characterized in that described passage is that the cross section is rounded, oval, rectangle, polygonal ductway, perhaps board-like passage, and its passage length layout is camber line shape, perhaps shaped form.
4, audio amplifier according to claim 1 is characterized in that described sound absorption is installation side by side with loud speaker at the access portal end, and perhaps order is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276743 CN2575926Y (en) | 2002-09-29 | 2002-09-29 | Radiating fin fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02276743 CN2575926Y (en) | 2002-09-29 | 2002-09-29 | Radiating fin fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2575926Y true CN2575926Y (en) | 2003-09-24 |
Family
ID=33740541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02276743 Expired - Fee Related CN2575926Y (en) | 2002-09-29 | 2002-09-29 | Radiating fin fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2575926Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101459864B (en) * | 2007-09-21 | 2013-02-13 | 三星电子株式会社 | Speaker apparatus of mobile communication terminal for outputting high quality sound |
-
2002
- 2002-09-29 CN CN 02276743 patent/CN2575926Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101459864B (en) * | 2007-09-21 | 2013-02-13 | 三星电子株式会社 | Speaker apparatus of mobile communication terminal for outputting high quality sound |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |