CN2857386Y - Super-thin Bass-reflex cabinet - Google Patents
Super-thin Bass-reflex cabinet Download PDFInfo
- Publication number
- CN2857386Y CN2857386Y CN 200520036313 CN200520036313U CN2857386Y CN 2857386 Y CN2857386 Y CN 2857386Y CN 200520036313 CN200520036313 CN 200520036313 CN 200520036313 U CN200520036313 U CN 200520036313U CN 2857386 Y CN2857386 Y CN 2857386Y
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- China
- Prior art keywords
- phase
- reversing tube
- sound box
- inverted cabinet
- tube
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Abstract
The utility model discloses a super thin reverse phase sound box, including sound box body and phase reversing tube, the tube is mounted horizontally to the internal sidewall of the sound box, the stated sidewall including front, back, left, right, upper and bottom side. With the phase reversing tube being mounted horizontally, the problem of phase reverse design for super thin sound box can be resolved effectively. By applying the design of the utility model, it not only can maintain an attractive appearance, but also can ensure an excellent acoustic design. The design has an excellent application value.
Description
Technical field
The utility model relates to a kind of phase inverted cabinet, is primarily aimed at the Ultrathin speaker design that television set and sound equipment are used.Be applicable to liquid crystal TV set audio amplifier, short tube CRT television baffle box, reach other phase-reversing tubes designs because of the slim audio amplifier of moulding or structural requirement thickness limits.
Background technology
Phase inverted cabinet because of its efficient height, distortion is little, LF-response is good is widely used in sound equipment field and television set sound equipment.
In the LCD TV at home and abroad, the phase-reversing tube in the existing phase inverted cabinet is on the sidewall that is vertically fixed on casing at present, still, owing to be subjected to moulding and structural restriction, is difficult to make the audio amplifier that meets acoustic construction.Domestic some producer does not design casing, directly uses the interior space of machine as casing, has drawbacks such as machine shake, acoustic short circuit, sound muddiness.Some television set design has casing, but because of being subjected to structural limitations, the length of phase-reversing tube is not enough, and the resonance frequency height causes low frequency to can not get strengthening on the contrary decay too early, has a strong impact on the acoustics of complete machine.Its structural representation is seen accompanying drawing 1a and Fig. 1 b, wherein, is the phase inverted cabinet of standard shown in the accompanying drawing 1a, reasonably design, and inverting function is obvious, and low frequency has obtained reinforcement.Be that the phase-reversing tube sectional area is too small, does not have inverting function owing to be subjected to the phase inverted cabinet of moulding and structural limitations shown in the accompanying drawing 1b, low frequency is bad.
Summary of the invention
The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art, proposes a kind of not only easy realization but also can meet phase inverted cabinet of parameters,acoustic and preparation method thereof.
Realize the technical scheme of above-mentioned purpose: a kind of ultrathin phase inverted cabinet, comprise sound box and phase-reversing tube, phase-reversing tube is horizontal to be installed on the sidewall of sound box inwall.
Further, on the horizontal front, back, left, right, up, down sidewall that is installed in the sound box inwall of described phase-reversing tube.
A kind of manufacture method of ultrathin phase inverted cabinet is with on the horizontal sidewall that is installed in the sound box inwall of phase-reversing tube.
Further, be installed on the sound box inwall that is coated with the sound-absorbing vibration-absorptive material phase-reversing tube is horizontal.
Further, during making, the sidewall sections in the audio amplifier that described and phase-reversing tube attach mutually is as the tube wall of phase-reversing tube.
Adopt technique scheme, the utility model beneficial technical effects is: the utility model is initiatively with on the horizontal sidewall that is installed in the sound box inwall of phase-reversing tube, overcome traditional prejudice that people think " phase-reversing tube in the phase inverted cabinet can only be vertically fixed on the sidewall of casing " always, overcome tradition " vertical install " because phase inverted cabinet is subjected to moulding and structural limitations, the shortcoming that the phase-reversing tube sectional area is too small, do not have inverting function, low frequency is bad etc.Because phase inverted cabinet need design according to parametric loudspeaker, the low-frequency resonant point is the topmost design content of phase inverted cabinet, and the diameter of the volume of audio amplifier and phase-reversing tube and length are to determine three key elements of audio amplifier low-frequency resonant point.Take charge of a large amount of evidences through me, the shape of phase-reversing tube and angle can not cause harmful effect to sound.Therefore, the utility model is designed to horizontal installation phase-reversing tube with the phase-reversing tube of traditional " the vertical installation ", thereby has broken through the restriction of audio amplifier thickness, is easy to reach the length that requires of the design tuned frequency that meets the acoustics requirement.
The utility model efficiently solves the paraphase design problem of ultrathin audio amplifier, uses design of the present utility model, can keep graceful outward appearance, can guarantee good acoustic design again, has excellent application value.
Description of drawings
Fig. 1 a is the structural representation of the phase inverted cabinet of existing standard.
Fig. 1 b is the existing structural representation that is subjected to the phase inverted cabinet of moulding and structural limitations.
Fig. 2 is the ultrathin phase inverted cabinet structural representation of a kind of horizontal installation phase-reversing tube of the utility model.
Fig. 3 is the structural representation of the another kind of ultrathin phase inverted cabinet of the utility model.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Fig. 5 is the structural representation of another ultrathin phase inverted cabinet of the utility model.
Embodiment
Embodiment one, a kind of ultrathin phase inverted cabinet and preparation method thereof, as shown in Figure 2, phase inverted cabinet comprises sound box 1 and phase-reversing tube 2, and phase-reversing tube 2 horizontal installations (being attached at) are on the front side wall of sound box 1 inwall, at this moment, the central axis of phase-reversing tube 2 is parallel with front side wall.
According to the concrete structure needs of sound box, can be with on the horizontal front, back, left, right, up, down sidewall that is installed in sound box 1 inwall of phase-reversing tube 2.Generally speaking, be installed in front side wall, promptly with loud speaker 4 same sidewalls, rear wall or lower wall on.
The manufacture method of above-mentioned phase inverted cabinet comprises the steps:
1) according to the volume and the acoustics requirement of audio amplifier, determines audio amplifier low-frequency resonant point;
2) determine phase-reversing tube length, L=C
2S/4 π
2f
bV-0.82S
1/2, in the formula: C is the velocity of sound; S is the sectional area of phase-reversing tube; f
bIt is the resonance frequency of speaker system; V is the volume of casing;
On the phase-reversing tube 2 horizontal front side walls that are installed in the sound box 1 that 3) will design on request again.
Embodiment two, another kind of ultrathin phase inverted cabinet and preparation method thereof, as shown in Figure 3 and Figure 4, phase inverted cabinet comprises sound box 1 and phase-reversing tube 2, the sidewall of phase-reversing tube 2 is attached on the antetheca in the sound box 1, and be used to attach on the antetheca in the sound box 1 of phase-reversing tube 2 and be coated with sound-absorbing vibration-absorptive material 3, apply the sound-absorbing vibration-absorptive material and can solve the machine shake that therefore may bring and dye with sound.
The manufacture method of phase inverted cabinet: 1), determine audio amplifier low-frequency resonant point according to the volume and the acoustics requirement of audio amplifier; 2) determine the length of phase-reversing tube according to audio amplifier low-frequency resonant point; 3) be coated with the sound-absorbing vibration-absorptive material on the antetheca in the sound box before phase-reversing tube to be attached; 4) phase-reversing tube is attached on the antetheca in the sound box.
Embodiment three, another ultrathin phase inverted cabinet and preparation method thereof, as shown in Figure 5, comprise sound box 1 and phase-reversing tube 2, present embodiment and embodiment one difference be, with antetheca in the sound box 2 that phase-reversing tube 2 attaches the mutually part as the tube wall of phase-reversing tube 2.
The manufacture method of present embodiment phase inverted cabinet is with embodiment one.
Claims (7)
1, a kind of ultrathin phase inverted cabinet comprises sound box and phase-reversing tube, it is characterized in that: phase-reversing tube is horizontal to be installed on the sidewall of sound box inwall.
2, according to the described ultrathin phase inverted cabinet of claim 1, it is characterized in that: described phase-reversing tube is horizontal to be installed on the front side wall of sound box inwall.
3, according to the described ultrathin phase inverted cabinet of claim 1, it is characterized in that: described phase-reversing tube is horizontal to be installed on the rear wall of sound box inwall.
4, according to the described ultrathin phase inverted cabinet of claim 1, it is characterized in that: described phase-reversing tube is horizontal to be installed on the left side wall or right side wall of sound box inwall.
5, according to the described ultrathin phase inverted cabinet of claim 1, it is characterized in that: described phase-reversing tube is horizontal to be installed on the lower wall or upper side wall of sound box inwall.
6, according to any described ultrathin phase inverted cabinet of claim 1-5, it is characterized in that: be coated with the sound-absorbing vibration-absorptive material on the described sidewall that is used to attach phase-reversing tube.
7, according to any described ultrathin phase inverted cabinet of claim 1-5, it is characterized in that: the sidewall sections in the audio amplifier that described and phase-reversing tube attach mutually is as the tube wall of phase-reversing tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520036313 CN2857386Y (en) | 2005-11-22 | 2005-11-22 | Super-thin Bass-reflex cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520036313 CN2857386Y (en) | 2005-11-22 | 2005-11-22 | Super-thin Bass-reflex cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2857386Y true CN2857386Y (en) | 2007-01-10 |
Family
ID=37600691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520036313 Expired - Fee Related CN2857386Y (en) | 2005-11-22 | 2005-11-22 | Super-thin Bass-reflex cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2857386Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102742298A (en) * | 2010-12-03 | 2012-10-17 | 松下电器产业株式会社 | Mobile path searching device and mobile path searching method |
| CN108200513A (en) * | 2018-02-13 | 2018-06-22 | 潘海啸 | A kind of nature circular horn formula paraphase structure mini speaker |
-
2005
- 2005-11-22 CN CN 200520036313 patent/CN2857386Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102742298A (en) * | 2010-12-03 | 2012-10-17 | 松下电器产业株式会社 | Mobile path searching device and mobile path searching method |
| CN102742298B (en) * | 2010-12-03 | 2016-09-21 | 松下知识产权经营株式会社 | Speaker system |
| CN108200513A (en) * | 2018-02-13 | 2018-06-22 | 潘海啸 | A kind of nature circular horn formula paraphase structure mini speaker |
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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 |