CN2824482Y - Loudspeaker box for giving lectures - Google Patents
Loudspeaker box for giving lectures Download PDFInfo
- Publication number
- CN2824482Y CN2824482Y CN 200520090559 CN200520090559U CN2824482Y CN 2824482 Y CN2824482 Y CN 2824482Y CN 200520090559 CN200520090559 CN 200520090559 CN 200520090559 U CN200520090559 U CN 200520090559U CN 2824482 Y CN2824482 Y CN 2824482Y
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- CN
- China
- Prior art keywords
- casing
- audio amplifier
- giving lectures
- lectures
- amplifier according
- 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 provides a sound box for giving lectures, which mainly comprises a box body and a loudspeaker which is arranged on the box body, wherein a phase reversal hole is arranged on the box body. The utility model is characterized in that a wind exhausting slot is arranged on the bottom of the box body, a blower and a wind pipe are arranged in the box body, and a wind exhausting port of the wind pipe is pointed to the wind exhausting slot. The wind generated by the blower is exhausted from the wind exhausting port through the wind pipe, and form a wind curtain through the wind exhausting slot on the bottom of the box body. The sound box for giving lectures provided by the utility model has the advantages that dust is collected in a dust slot positioned on the lower part of a blackboard, and lecturers and auditors at the front row can be prevented from the dust hazard; a sound sensation, fresh air, a smell sensation and a light sensation are brought to the listeners; a required section in the memory of the sound box can be selected.
Description
Technical field:
The utility model relates to sound technique, especially gives lectures and uses recording and playing device.
Background technology:
Existing audio amplifier is only given a kind of phonoreception of audience, does not have olfactory, does not have light sensation, and the people is felt tired.
Summary of the invention:
The purpose of this utility model is to provide a kind of giving lectures to use audio amplifier, can form the air curtain audio amplifier.
The utility model provides a kind of giving lectures to use audio amplifier, mainly comprise casing (1) and loud speaker (2), loud speaker (2) is contained on the face of casing (1), have paraphase hole (3) on the casing (1), it is characterized in that: casing (1) bottom is shaped on air draft groove (11), casing (1) is built-in with air blast (12) and airduct (7), and the exhaust outlet (10) of airduct (7) is facing to air draft groove (11).The wind that air blast produces is discharged from exhaust outlet (10) through airduct (7), by the air draft groove (11) of casing (1) bottom, forms air curtain.When audio amplifier placed the blackboard top, this air curtain stopped dust from flying, dust is collected in is positioned in the dust groove of blackboard below.Prevent that dust harzard says that scholar and front row accept.
Audio amplifier is used in giving lectures that the utility model provides, and its air draft groove (11) is outer can be provided with deep bead (5), control air curtain direction.
Audio amplifier is used in giving lectures that the utility model provides, and its casing (1) below can have microphone (9), gives lectures so that say that the scholar faces under the blackboard situation.
Audio amplifier is used in giving lectures that the utility model provides, and can have the separate type controller, and controller can be fixed on the dais.
Audio amplifier is used in giving lectures that the utility model provides, and the inboard of its casing (1) can be equipped with circuit board (6), and circuit board (6) mainly comprises control chip, storaging chip, codec chip and playback chip.
Audio amplifier is used in giving lectures that the utility model provides, and can be equipped with anion generator (4) and anion generator control device in its casing (1), and anion generator (4) can place air blast (12) to locate, and anion is emitted with air curtain.
Audio amplifier is used in giving lectures that the utility model provides, and can be equipped with fan in its casing (1), and the anion that anion generator (4) is produced blows out from paraphase hole (8).
Audio amplifier is used in giving lectures that the utility model provides, and two or more loud speakers (2) can be arranged on its casing (1), and loud speaker (2) is inclined upwardly, and makes sound reflex to back row from ceiling.
Audio amplifier is used in giving lectures that the utility model provides, and can be equipped with colored eye-catching device (8) on its casing (1), as lampion, colourful transparent pattern etc., gives and accepts a kind of light sensation, eliminates tired.
Audio amplifier is used in giving lectures that the utility model provides, can form by two or more casings (1), in deep bead (5), microphone (9), anion generator (4), fan, colored eye-catching device (8), the deep bead (5) one or more can be arranged, oneself is arranged or shared air blast (12) and airduct (7) in each casing.
The advantage that the utility model provides gives lectures with audio amplifier is: dust is collected in is positioned in the dust groove of blackboard below, prevent that dust harzard says that scholar and front row accept; Be not only phonoreception to the audience, also have ozone, olfactory, light sensation can be chosen needed section in the audio amplifier internal memory.
Description of drawings
Fig. 1 is giving lectures with the structural representation of audio amplifier with two loud speakers;
Fig. 2 has giving lectures of two casings to use the structural representation of audio amplifier;
Fig. 3 is giving lectures with the structural representation of audio amplifier with two microphones;
Fig. 4 is that the remote control of audio amplifier receives the playback logic diagram;
Fig. 5 is the power circuit principle figure of audio amplifier;
Fig. 6 is the receiving circuit schematic diagram of audio amplifier;
Fig. 7 is the storaging chip circuit theory diagrams;
Fig. 8 is a microprocessor CPU chip circuit schematic diagram;
Fig. 9 is codec and preamplifier chip circuit theory diagrams;
Figure 10 is the power amplifier schematic diagram of audio amplifier.
Embodiment
The structure of this audio amplifier as shown in Figure 1, mainly comprise casing (1) and two loud speakers (2), loud speaker (2) is contained on the face of casing (1), have paraphase hole (3) on the casing (1), casing (1) bottom is shaped on air draft groove (11), casing (1) is built-in with air blast (12) and airduct (7), and the exhaust outlet (10) of airduct (7) is facing to air draft groove (11).The wind that air blast produces is discharged from exhaust outlet (10) through airduct (7), by the air draft groove (11) of casing (1) bottom, forms air curtain.The outer deep bead (5) that is provided with of air draft groove (11), control air curtain direction.Casing (1) below is outstanding microphone (9), gives lectures so that say that the scholar faces under the blackboard situation.The inboard of casing (1) is equipped with circuit board (6), and circuit board (6) mainly comprises control chip, storaging chip, codec chip and playback chip (seeing Fig. 4～10).The interior air blast of casing (1) (12) locates to be equipped with anion generator (4) and anion generator control device, and anion is emitted with air curtain.Also be equipped with colored highlighting lamp (8) on the casing (1), give and accept a kind of light sensation, eliminate tired.
The structure of this audio amplifier as shown in Figure 2, form by two casings (1), each mainly contains loud speaker (2), loud speaker (2) is contained on the face of casing (1), have paraphase hole (3) on the casing (1), casing (1) bottom is shaped on air draft groove (11), and casing (1) is built-in with air blast (1 2), two casings (1) have shared airduct (7), and the exhaust outlet (10) of airduct (7) is facing to air draft groove (11).The wind that air blast produces is discharged from exhaust outlet (10) through airduct (7), by the air draft groove (11) of casing (1) bottom, forms air curtain.The outer deep bead (5) that is provided with of air draft groove (11), control air curtain direction.Casing (1) below is outstanding microphone (9), gives lectures so that say that the scholar faces under the blackboard situation.The inboard of a casing (1) is equipped with circuit board (6), and circuit board (6) mainly comprises control chip, storaging chip, codec chip and playback chip (seeing Fig. 4～10).The interior air blast of casing (1) (12) locates to be equipped with anion generator (4) and anion generator control device, and anion is emitted with air curtain.
The structure of this audio amplifier as shown in Figure 3, mainly comprise casing (1) and loud speaker (2), loud speaker (2) is contained on the face of casing (1), have paraphase hole (3) on the casing (1), casing (1) bottom is shaped on air draft groove (11), casing (1) is built-in with air blast (12) and airduct (7), and stretch out outside the casing (1) at the two ends of airduct (7), and the exhaust outlet (10) of airduct (7) is facing to air draft groove (11).The wind that air blast produces is discharged from exhaust outlet (10) through airduct (7), by the air draft groove (11) of casing (1) bottom, forms air curtain.The outer deep bead (5) that is provided with of air draft groove (11), control air curtain direction.Each outstanding has a microphone (9) casing (1) down either side, gives lectures so that say that the scholar faces under the blackboard situation.The inboard of casing (1) is equipped with circuit board (6), and circuit board (6) mainly comprises control chip, storaging chip, codec chip and playback chip (seeing Fig. 4～10).The interior air blast of casing (1) (12) locates to be equipped with anion generator (4) and anion generator control device, and anion is emitted with air curtain.
Can store required content in the circuit board chip of this class audio amplifier, to realize playback, song, music, program, joke, humour, riddle, two-part allegorical saying, roll-call and to put question at random.
Claims (10)
1, a kind of giving lectures used audio amplifier, mainly comprise casing (1) and loud speaker (2), loud speaker (2) is contained on the face of casing (1), have paraphase hole (3) on the casing (1), it is characterized in that: casing (1) bottom is shaped on air draft groove (11), casing (1) is built-in with air blast (12) and airduct (7), and the exhaust outlet (10) of airduct (7) is facing to air draft groove (11).
2, use audio amplifier according to described the giving lectures of claim 1, it is characterized in that: the outer deep bead (5) that is provided with of described air draft groove (11).
3, use audio amplifier according to described the giving lectures of claim 1, it is characterized in that: described casing below has microphone (9).
4, use audio amplifier according to described the giving lectures of claim 1, it is characterized in that: have the separate type controller.
5, use audio amplifier according to described the giving lectures of one of claim 1～4, it is characterized in that: the inboard of described casing (1) is equipped with circuit board (6), and circuit board (6) mainly comprises control chip, storaging chip, codec chip and playback chip.
6, use audio amplifier according to described the giving lectures of one of claim 1～4, it is characterized in that: be built-in with anion generator (4) and anion generator control device at described casing (1).
7, use audio amplifier according to described the giving lectures of claim 6, it is characterized in that: be built-in with fan at described casing (1).
8, use audio amplifier according to described the giving lectures of one of claim 1～4, it is characterized in that: two or more loud speakers (2) are arranged on described casing (1).
9, use audio amplifier according to described the giving lectures of one of claim 1～4, it is characterized in that: on described casing (1), be equipped with colored eye-catching device (8).
10, use audio amplifier according to described the giving lectures of one of claim 1～4, it is characterized in that: form by two or more described casings (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090559 CN2824482Y (en) | 2005-04-26 | 2005-04-26 | Loudspeaker box for giving lectures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090559 CN2824482Y (en) | 2005-04-26 | 2005-04-26 | Loudspeaker box for giving lectures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2824482Y true CN2824482Y (en) | 2006-10-04 |
Family
ID=37033600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520090559 Expired - Fee Related CN2824482Y (en) | 2005-04-26 | 2005-04-26 | Loudspeaker box for giving lectures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2824482Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954105A (en) * | 2017-04-05 | 2017-07-14 | 广西南宁超网网络科技有限责任公司 | A kind of audio amplifier with automatic dedusting function |
-
2005
- 2005-04-26 CN CN 200520090559 patent/CN2824482Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954105A (en) * | 2017-04-05 | 2017-07-14 | 广西南宁超网网络科技有限责任公司 | A kind of audio amplifier with automatic dedusting function |
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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 |