CN201210747Y - Resonant bass speaker - Google Patents
Resonant bass speaker Download PDFInfo
- Publication number
- CN201210747Y CN201210747Y CNU2008200482606U CN200820048260U CN201210747Y CN 201210747 Y CN201210747 Y CN 201210747Y CN U2008200482606 U CNU2008200482606 U CN U2008200482606U CN 200820048260 U CN200820048260 U CN 200820048260U CN 201210747 Y CN201210747 Y CN 201210747Y
- Authority
- CN
- China
- Prior art keywords
- woofer
- resonant
- low sound
- bass
- trumpet
- 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 resonant low sound box, which is provided with a low sound box body. An internal low sound trumpet is arranged inside the sound box body, an external low sound trumpet same as the internal low sound trumpet (namely consistent in model, brand, size of the trumpets) is arranged outside the sound box body, the two trumpets are arranged on the same central axis line and in the same direction, the internal low sound trumpet is an active trumpet, the external low sound trumpet is a passive trumpet, the low sound box body and the two low sound trumpets form a sealing system, and an air switch is arranged on the low sound box body. The resonant low sound box is designed by the scientific acoustic resonance principle, has superior low sound effect than the prior low sound box, and is suitable for various sound systems with R.L tone channel and 5.1 tone channel.
Description
Technical field
The utility model belongs to stereo set, relates to a kind of woofer.
Background technology
Traditional woofer generally is provided with a built-in bass horn in sound box bodies, rely on this bass horn and the audio amplifier effect of empathizing, and the bass effect that obtains is still not ideal.
Summary of the invention
The purpose of this utility model provides a kind of resonant woofer that adopts resonance principle, so that produce desirable bass effect.
The resonant woofer that the utility model is designed, has a woofer body, a built-in bass horn is installed in this woofer body, it is characterized in that identical with described built-in bass horn one of the external installation of this woofer (is the model of loudspeaker, brand, the size dimension unanimity) external bass horn, two loudspeaker are installed on same axis in the same way, described built-in bass horn is active loudspeaker, described external bass horn is passive loudspeaker, woofer body and two bass horns form sealing system, are provided with air switch on the woofer body.
This resonant woofer utilizes two bass horns to produce the principle work of resonance, after closing the casing air switch, casing and two bass horns constitute a sealing system, the vibration that active loudspeaker produce when work produces resonance by the passive loudspeaker of air push, produces desirable bass effect thus.Because atmospheric pressure changes at different times, therefore, when loudspeaker were not worked, air switch should be in normally open, to keep the body inside and outside air pressure unanimity, made loudspeaker indeformable; When loudspeaker are worked, close air switch, air is not leaked, to guarantee two bass horn normal vibrations.
Described air switch can adopt manual needle valve switch or electromagnetic valve switch.When adopting electromagnetic valve switch work, its power supply is connected with the stereo set power supply, when opening stereo set, and the closed electromagnetic valve air switch, when closing stereo set, electromagnetically operated valve is opened air switch.
Described external bass horn is identical with built-in bass horn, is meant model, brand, the size dimension unanimity of two loudspeaker, so that produce identical vibration frequency, guarantees that bass effect is undistorted.And the bass horn size that is adopted in the audio amplifier, watt level is without limits.
Described woofer body can adopt following design, the length of the leading flank in the casing and width equate, be square, its size is bigger slightly than horn basin rack, make it the bass horn of packing into, and the degree of depth of casing (or claiming casing thickness) is a distance between two bass horn cones, and its distance can be adjusted; Described built-in bass horn is installed in the leading flank in the woofer body, in the degree of depth of casing is that the ratio of distance and the width (or length) of woofer body leading flank between described two bass horns is:, can reach best bass effect at 0.382: 0.618 o'clock.
Resonant woofer of the present utility model can be the woofer that works alone, also can be contained in the audio amplifier of general band high pitch, mediant trumpet, be integral with common height, middle audio amplifier, the first half audio amplifier is common height, middle audio amplifier, the latter half audio amplifier is resonant woofer, between separate with dividing plate.
The design of this resonant woofer has utilized the acoustic resonance principle of science, and its bass effect obviously is better than traditional woofer, is suitable for the stereo set of a lot of band R.L sound channels and 5.1 sound channels compatible.
Description of drawings
Fig. 1 is the structural representation of the resonant audio amplifier embodiment of this bass.
Embodiment
Be described in further detail below in conjunction with the CONSTRUCTED SPECIFICATION of accompanying drawing the utility model embodiment:
The resonant woofer of present embodiment and common height, middle audio amplifier are integral, and the first half audio amplifier is common height, middle audio amplifier, and the latter half audio amplifier is resonant woofer, and 1 is common height, middle pitch sound box bodies, and 2 is resonant woofer body.In high, middle pitch sound box bodies 1 loudspeaker 3, mediant trumpet 4, partial device 5 and terminal block 6 are installed, the design of its height, middle audio amplifier part and common height, middle audio amplifier designing technique are identical.Leading flank is the square that length equals width in the case of resonant woofer body 2, leading flank in this casing 2 is installed built-in bass horn 7, at the back side of casing 2 (relative with described leading flank) 8, two bass horns of external bass horn being installed installs on same axis in the same way.The distance of two bass horns, promptly the degree of depth of this casing 2 (also being the thickness of casing 2) with the ratio of the width of these casing 2 leading flanks is: 0.382: 0.618.Described built-in bass horn 7 is connected to active loudspeaker, and external bass horn 8 is connected to passive loudspeaker.Air switch 9 also is installed on casing 2, sound-absorbing material all is housed in above-mentioned audio amplifier, in order to eliminate the reflection noise, sound-absorbing material can be used cotton, woollen blanket or sponge.
Claims (5)
1. resonant woofer, has a woofer body (2), a built-in bass horn (7) is installed in this woofer body, it is characterized in that at external bass horn (8) identical of the external installation of this woofer with described built-in bass horn (7), two loudspeaker are installed on same axis in the same way, described built-in bass horn (7) is active loudspeaker, described external bass horn (8) is passive loudspeaker, woofer body and two bass horns form sealing system, are provided with air switch (9) on the woofer body.
2. resonant woofer according to claim 1, it is characterized in that described woofer body (2) is for square, built-in bass horn (7) is installed in the leading flank in the woofer body (2), this leading flank is a square, and the degree of depth of woofer body (2) is that the ratio of distance and the width of woofer body (2) leading flank between described two bass horns is: 0.382: 0.618.
3. resonant woofer according to claim 1 is characterized in that described air switch (9) is manual needle valve switch or electromagnetic valve switch.
4. resonant woofer according to claim 1 is characterized in that this audio amplifier and common height, middle audio amplifier are integral, and the first half audio amplifier is common height, middle audio amplifier, and the latter half audio amplifier is resonant woofer, between separate with dividing plate.
5. according to claim 1 or 4 described resonant woofers, it is characterized in that being equipped with in the sound box sound-absorbing material of cotton, woollen blanket or sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200482606U CN201210747Y (en) | 2008-05-26 | 2008-05-26 | Resonant bass speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200482606U CN201210747Y (en) | 2008-05-26 | 2008-05-26 | Resonant bass speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210747Y true CN201210747Y (en) | 2009-03-18 |
Family
ID=40481482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200482606U Expired - Fee Related CN201210747Y (en) | 2008-05-26 | 2008-05-26 | Resonant bass speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201210747Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045616A (en) * | 2009-10-22 | 2011-05-04 | 胡赓白 | Sound reproduction device with enhanced low-frequency sound effect |
| CN105430554A (en) * | 2015-11-30 | 2016-03-23 | 曾卓 | Environment-friendly loudspeaker box using water pipes as main raw material |
-
2008
- 2008-05-26 CN CNU2008200482606U patent/CN201210747Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045616A (en) * | 2009-10-22 | 2011-05-04 | 胡赓白 | Sound reproduction device with enhanced low-frequency sound effect |
| CN105430554A (en) * | 2015-11-30 | 2016-03-23 | 曾卓 | Environment-friendly loudspeaker box using water pipes as main raw material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20130526 |