CN201805536U - Super-bass sound box for English-reading - Google Patents
Super-bass sound box for English-reading Download PDFInfo
- Publication number
- CN201805536U CN201805536U CN2010205598358U CN201020559835U CN201805536U CN 201805536 U CN201805536 U CN 201805536U CN 2010205598358 U CN2010205598358 U CN 2010205598358U CN 201020559835 U CN201020559835 U CN 201020559835U CN 201805536 U CN201805536 U CN 201805536U
- Authority
- CN
- China
- Prior art keywords
- bass
- loudspeaker
- ellipsoid body
- control panel
- english
- 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 discloses a super-bass sound box for English-reading, consisting of a high tone loudspeaker aperture (1), a bass loudspeaker aperture (2), a press switch (3), a high tone loudspeaker (4), a bass loudspeaker (5) and a circuit control panel (6), characterized in that the high tone loudspeaker aperture (1) is disposed in the middle portion above a waistline of an ellipsoid body (7); the bass loudspeaker aperture (2) is disposed on the lower edge of the waistline of the ellipsoid body (7); the press switch (3) is disposed on the top of the ellipsoid body (7); the horizontal circuit control panel (6) is disposed on the bottom in the ellipsoid body (7); a super-bass circuit is laid on the circuit control panel (6); and a counterweight chassis (8) is disposed on the bottom of the ellipsoid body (7). The sound box having good integral performance, strong sealing performance, simple structure, easy manufacturing and stable operation is able to decrease noise and bass distortion owing to resonance at most and increase the English-reading voice effect by using the super bass.
Description
Technical field
The utility model relates to the improvement that the case that amplifies chanted in a kind of English, and sub-woofer chanted in specifically a kind of English that can improve hearing effect.
Background technology
Reciting in English or when match chanted in English, often by the case that amplifies, to improve the English Phonetics effect, particularly in the overall situation occasion, this case that amplifies just needs more.Traditional case that amplifies all has square box, loudspeaker unit, partial device, sound-absorbing material and circuit control panel to constitute, a good audio amplifier, not only critical component is good, and promptly loudspeaker unit, partial device are good, and the casing of audio amplifier also will get well, and comprises material, outward appearance, sound-absorbing effect and aesthetic effect.The existing deficiency of the employed case that amplifies is at present: the one, because casing is made by wood materials or plastic material mostly, the tank wall of this sound box is combined by the multiaspect plate, overall performance is poor, easily produces resonance noise and bass distortion, influences acoustics; The 2nd, the hearing effect of stereo set is relatively poor, influences English and reads aloud sound effect.
Summary of the invention
The purpose of this utility model is to provide that a kind of audio amplifier overall performance is good, sealing property strong, can farthest reduce dry sound and bass distortion that resonance causes, adopt the mega bass effect to increase English reads aloud sound effect, and sub-woofer chanted in the English of simple in structure, easy making, working stability.
For reaching above purpose, the technical scheme that the utility model adopted is: sub-woofer chanted in this English, constitute by loudspeaker hole, bass horn hole and push switch, loudspeaker, bass horn, circuit control panel, its spy is that described loudspeaker hole is located at the above middle part of waistline of ellipsoid body, fixes loudspeaker in the inboard in loudspeaker hole; Described bass horn hole is located at the waistline lower edge of ellipsoid body, the fixing baritone loudspeaker in the inboard in bass horn hole; Push switch is located at the top of ellipsoid body; Bottom in the ellipsoid body is provided with horizontal circuit control panel; On circuit control panel, lay the mega bass circuit; Be provided with the counterweight chassis in the bottom of ellipsoid body.
The utility model is also implemented by following measure: described counterweight chassis is a disk, upper surface is a taper surface, inside is buried balancing weight underground, and the rear side on the counterweight chassis is provided with power supply and connector socket, and power supply and connector socket are connected with push switch with circuit control panel by lead.
Described mega bass circuit comprises low-pass filter circuit, integrated operational amplifier circuit and power amplifier integrate circuit.Described low-pass filter circuit, comprise that resistance R 3-R5, capacitor C 1-C3, integrated transporting discharging IC1-1 constitute three rank Bart goblins active low-pass filter now, stop band attenuation with every octave 18dB, corner frequency is 120Hz, with the medium-high frequency composition filtering in the audio signal, only allow the following bass signal of 120Hz to pass through, because R1, R2 resistance are very big, be again from the number of winning the confidence of loud speaker termination, so can not produce harmful effect to the stereo crosstalk of sound channel; Described integrated operational amplifier circuit comprises that IC1-2 constitutes, and multiplication factor is 10 times, amplifies for buffering, has both isolated the influence of power amplifier to active power filtering, has improved driving voltage again; Described power amplifier integrate circuit comprises that IC2 constitutes, and power output is 100W, can satisfy fully under the general meeting room audition condition the mega bass effect of requirement; The signal of described low-pass filter circuit is through R1, R2 and potentiometer RP input, by the size of potentiometer RP may command volume.
The beneficial effects of the utility model are: sub-woofer chanted in this English, the audio amplifier overall performance is good, sealing property is strong, can farthest reduce dry sound and bass distortion that resonance causes, adopt mega bass to increase English and read aloud sound effect, and simple in structure, easy making, working stability.
Description of drawings
Fig. 1, be structure front-view schematic diagram of the present utility model.
Fig. 2, be that structure of the present utility model is along Figure 1A-A office cross-sectional schematic.
Fig. 3, be circuit theory schematic diagram of the present utility model.
Embodiment
Make the utility model with reference to Fig. 1,2,3.Sub-woofer chanted in this English, constitute by loudspeaker hole 1, bass horn hole 2 and push switch 3, loudspeaker 4, bass horn 5, circuit control panel 6, its spy is that described loudspeaker hole 1 is located at the above middle part of waistline of ellipsoid body 7, fixes loudspeaker 4 in the inboard in loudspeaker hole 1; Described bass horn hole 2 is located at the waistline lower edge of ellipsoid body 7, the fixing baritone loudspeaker 5 in the inboard in bass horn hole 2; Push switch 3 is located at the top of ellipsoid body 7; Bottom in ellipsoid body 7 is provided with horizontal circuit control panel 6; On circuit control panel 6, lay the mega bass circuit; Be provided with counterweight chassis 8 in the bottom of ellipsoid body 7.
The utility model is also implemented by following measure: described counterweight chassis 8 is a disk, upper surface is a taper surface 81, inside is buried balancing weight 82 underground, make down-shift of working center by balancing weight 82, improve the stability of placing, rear side on counterweight chassis 8 is provided with power supply and connector socket 83, and power supply and connector socket 83 are connected with push switch 3 with circuit control panel 6 by lead.
Described mega bass circuit comprises low-pass filter circuit, integrated operational amplifier circuit and power amplifier integrate circuit.Described low-pass filter circuit, comprise that resistance R 3-R5, capacitor C 1-C3, integrated transporting discharging IC1-1 constitute three rank Bart goblins active low-pass filter now, stop band attenuation with every octave 18dB, corner frequency is 120Hz, with the medium-high frequency composition filtering in the audio signal, only allow the following bass signal of 120Hz to pass through, because R1, R2 resistance are very big, be again from the number of winning the confidence of loud speaker termination, so can not produce harmful effect to the stereo crosstalk of sound channel; Described integrated operational amplifier circuit comprises that IC1-2 constitutes, and multiplication factor is 10 times, amplifies for buffering, has both isolated the influence of power amplifier to active power filtering, has improved driving voltage again; Described power amplifier integrate circuit comprises that IC2 constitutes, and power output is 100W, can satisfy fully under the general meeting room audition condition the mega bass effect of requirement; The signal of described low-pass filter circuit is through R1, R2 and potentiometer RP input, by the size of potentiometer RP may command volume.
Claims (2)
1. sub-woofer chanted in an English, constitute by loudspeaker hole (1), bass horn hole (2) and push switch (3), loudspeaker (4), bass horn (5), circuit control panel (6), its spy is that described loudspeaker hole (1) is located at the above middle part of waistline of ellipsoid body (7), the fixing loudspeaker (4) of going up in the inboard of loudspeaker hole (1); Described bass horn hole (2) is located at the waistline lower edge of ellipsoid body (7), the fixing baritone loudspeaker (5) in the inboard of bass horn hole (2); Push switch (3) is located at the top of ellipsoid body (7); Bottom in ellipsoid body (7) is provided with horizontal circuit control panel (6); Go up laying mega bass circuit at circuit control panel (6); Be provided with counterweight chassis (8) in the bottom of ellipsoid body (7).
2. sub-woofer chanted in English according to claim 1, it is characterized in that described counterweight chassis (8) is disk, upper surface is taper surface (81), inside is buried balancing weight (82) underground, rear side in counterweight chassis (8) is provided with power supply and connector socket (83), and power supply and connector socket (83) are connected with push switch (3) with circuit control panel (6) by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205598358U CN201805536U (en) | 2010-10-14 | 2010-10-14 | Super-bass sound box for English-reading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205598358U CN201805536U (en) | 2010-10-14 | 2010-10-14 | Super-bass sound box for English-reading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201805536U true CN201805536U (en) | 2011-04-20 |
Family
ID=43875035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205598358U Expired - Fee Related CN201805536U (en) | 2010-10-14 | 2010-10-14 | Super-bass sound box for English-reading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201805536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686490A (en) * | 2013-11-29 | 2014-03-26 | 谢虹 | Bluetooth voice box |
-
2010
- 2010-10-14 CN CN2010205598358U patent/CN201805536U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686490A (en) * | 2013-11-29 | 2014-03-26 | 谢虹 | Bluetooth voice box |
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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: 20110420 Termination date: 20111014 |