CN2252469Y - Regulating loudspeaker box inverted amplifier - Google Patents
Regulating loudspeaker box inverted amplifier Download PDFInfo
- Publication number
- CN2252469Y CN2252469Y CN 96225477 CN96225477U CN2252469Y CN 2252469 Y CN2252469 Y CN 2252469Y CN 96225477 CN96225477 CN 96225477 CN 96225477 U CN96225477 U CN 96225477U CN 2252469 Y CN2252469 Y CN 2252469Y
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- phase inverter
- outer sleeve
- screw thread
- utility
- 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
Links
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model relates to a phase reversal device of a regulating sound box. The utility model relates to a sounding appliance and is composed of an inner sleeve pipe and an outer sleeve pipe, wherein, the outer sleeve pipe is cylindrical, one end of the outer sleeve pipe is provided with a horn mouth, and the inner sides of the sleeve pipes are respectively provided with a screw thread. The inner sleeve pipe matched with the outer sleeve pipe is provided with an outer screw thread matched with the outer sleeve pipe. The utility model is characterized in that the inner sleeve pipe and the outer sleeve pipe are screwed inwards and outwards, which can regulate the phase reversal device. The regulation process is convenient, and the accuracy of regulating frequency is improved.
Description
The utility model relates to sound equipment, especially a kind of audio amplifier inverted phase type device.
At present, the assembling of audio amplifier all utilizes high and low sound loud speaker, the angle of number of loudspeakers, assembling, and the longitudinal separation of loud speaker in audio amplifier and the length of tone channel are regulated the audio frequency that people like.But existing gun stocks is the outward appearance physical dimension data that provide by loud speaker, calculates its phase inverter length and diameter, because the frequency that these data inadequately accurately and the error in calculating, tend to cause phase inverter to access is also accurate inadequately.
The purpose of this utility model provides a kind of adjustable type audio amplifier phase inverter, has improved the accuracy of regulating audio frequency.
The technical solution of the utility model is achieved in that
A kind of adjustable type audio amplifier phase inverter is characterized in that: phase inverter is made up of inside and outside two sleeve pipes, and outer tube is cylindrical, and an end has tubaeform mouthful, and the inboard of sleeve pipe is provided with screw thread, with the inner sleeve of outer tube coupling, is provided with the external screw thread with the outer tube coupling.The design of phase inverted cabinet according to Helmholtz's air resonance principle, utilizes the relation of audio amplifier internal volume and phase inverter (acoustic conducting pipe), the sound of tuning loud speaker back radiation.On a certain characteristic frequency, produce resonance, this part sound is radiate from phase inverter, the sound that is higher than the tuned frequency place and vibrating diaphragm directly in air the sound of radiation be identical, so increased the low-frequency effect of audio amplifier, and controlled the distortion at loud speaker tuned frequency place.The frequency that phase inverter gives off is anti-phase, so the following acoustic pressure of tuned frequency obtains descending.
Characteristics of the present utility model are: phase inverter is regulated in precession, back-out by interior pipe and outer tube, and adjustment process is convenient, has improved the accuracy of regulating frequency.
Fig. 1 is the cross-sectional view of adjustable type audio amplifier phase inverter.
Embodiment:
Adjustable type audio amplifier phase inverter embodiment is achieved in that
See Fig. 1, phase inverter is made up of inside and outside two sleeve pipes, and outer tube 1 is cylindrical, and an end has tubaeform mouthful, and the inboard of sleeve pipe is provided with screw thread, with the inner sleeve 2 of outer tube coupling, is provided with the external screw thread with the outer tube coupling.Adjustable type audio amplifier phase inverter is contained in the back side of inverted phase type sound equipment, and the design of phase inverted cabinet according to Helmholtz's air resonance principle, utilizes the relation of audio amplifier internal volume and phase inverter (acoustic conducting pipe), the sound of tuning loud speaker back radiation.On a certain characteristic frequency, produce resonance, this part sound is radiate from phase inverter, the sound that is higher than the tuned frequency place and vibrating diaphragm directly in air the sound of radiation be identical, so increased the low-frequency effect of audio amplifier, and controlled the distortion at loud speaker tuned frequency place.The frequency that phase inverter gives off is anti-phase, so the following acoustic pressure of tuned frequency obtains descending.
Claims (1)
1. adjustable type audio amplifier phase inverter, it is characterized in that: phase inverter is made up of inside and outside two sleeve pipes, and outer tube is cylindrical, one end has tubaeform mouthful, the inboard of sleeve pipe is provided with screw thread, with the inner sleeve of outer tube coupling, is provided with the external screw thread with the outer tube coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225477 CN2252469Y (en) | 1996-02-14 | 1996-02-14 | Regulating loudspeaker box inverted amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225477 CN2252469Y (en) | 1996-02-14 | 1996-02-14 | Regulating loudspeaker box inverted amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2252469Y true CN2252469Y (en) | 1997-04-16 |
Family
ID=33904149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96225477 Expired - Fee Related CN2252469Y (en) | 1996-02-14 | 1996-02-14 | Regulating loudspeaker box inverted amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2252469Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105307079A (en) * | 2015-11-02 | 2016-02-03 | 深圳市得辉达科技有限公司 | Inverter tube structure and bass reflex with adjustable bass sound effect |
-
1996
- 1996-02-14 CN CN 96225477 patent/CN2252469Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105307079A (en) * | 2015-11-02 | 2016-02-03 | 深圳市得辉达科技有限公司 | Inverter tube structure and bass reflex with adjustable bass sound effect |
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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 |