CN203435128U - Sound-amplifying all-in-one machine for digital active sound box - Google Patents
Sound-amplifying all-in-one machine for digital active sound box Download PDFInfo
- Publication number
- CN203435128U CN203435128U CN201320458710.XU CN201320458710U CN203435128U CN 203435128 U CN203435128 U CN 203435128U CN 201320458710 U CN201320458710 U CN 201320458710U CN 203435128 U CN203435128 U CN 203435128U
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- sound box
- installation panel
- microphone
- audio
- metal installation
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Abstract
The utility model discloses a sound-amplifying all-in-one machine for a digital active sound box, and the machine comprises a sound box body, a loudspeaker accommodated inside the sound box body, and a circuit control connection part which is electrically connected with the loudspeaker. A side surface of the sound box body is connected with a detachable metal installation panel in a threaded manner. The outer side surface of the metal installation panel is equipped with an audio control piece. The circuit control connection part comprises a master control circuit board and a transformer which are fixed on the inner side surface of the metal installation panel in a threaded manner. The master control circuit comprises a power amplification circuit, a head-dissipation aluminium plate, and a 2.4GHz wireless audio receiver which is used for the pairing connection with a wireless microphone. According to the utility model, the technology of 2.4GHz wireless audio receiving, the technology of power amplification and the technology of sound box are integrated into a whole body, so that the machine is convenient to use, greatly reduces the cost of a product, and is in favor of large-batch popularization.
Description
Technical field
The utility model relates to audio frequency public address technical field, is specifically related to digital active loudspeaker public address all-in-one.
Background technology
Along with socioeconomic development, the raising of people's living standard, sound equipment has been come into huge numbers of families, and as the electrical equipment of people's daily life amusement, it is in various places to operate schools extensive use.
Traditional sound amplifier need to by independently for putting, audio amplifier and radio receiver support the use, and causes cost high, uses inconvenience, be unfavorable for promoting.
Its public address product of audio amplifier using in place to operate schools is U section or the wireless public address of V section, and frequency range is few, is easy to string frequently; Tradition U section or V section microphone, need and receive fixed frequency to frequently, causes microphone in a classroom, to use, and the scope of application is very limited.
Utility model content
The purpose of this utility model is to solve above defect, and a kind of digital active loudspeaker public address all-in-one is provided, and it adopts 2.4GHz ANTENN AUDIO reception technique, and is integrated with power amplifier and three kinds of technical combinations of audio amplifier, forms an integral body.
The purpose of this utility model is achieved in the following ways:
Digital active loudspeaker public address all-in-one, comprise sound box and be contained in the loud speaker of sound box inside and the circuit control connection parts that are electrically connected with loud speaker, in sound box side, be bolted with Demountable metallic installation panel, this metal installation panel lateral surface lower end is provided with power switch key and power line, and at metal installation panel lateral surface, Audio Controls is installed, described circuit control connection parts comprise being spirally connected and are fixed on master control circuit board and the transformer of metal installation panel medial surface, this master control circuit board comprises power amplification circuit, heat-dissipating aluminium plate and 2.4GHz ANTENN AUDIO receiver for being connected with wireless microphone pairing, this Audio Controls comprises the microphone input interface that is connected with cable microphone and for the audio input interface in accessing to audio source, when using cable microphone to insert microphone input interface, will automatically cut off wireless microphone, connect cable microphone.
As preferably, at metal installation panel lateral surface, be provided with for connecting the power stage terminals of external voice box, can the various external audio amplifiers of external output.
As preferably, the lateral surface of this metal installation panel also has additional microphone volume adjustment knob, microphone effect adjusting knob and audio volume adjusting knob.
As preferably, other being provided with of this microphone input interface, be used to indicate the indicator light that microphone input is switched.
As preferably, this sound box is square structure.
As preferably, this sound box front is provided with the steel mesh of being convenient to sound.
The beneficial effect that the utility model produces is as follows:
1) compare with traditional U section or the wireless public address technology of V section, adopt 2.4GHz ANTENN AUDIO reception technique and wireless microphone pairing, microphone can be at random and receiver match, there will not be and go here and there frequency;
2) use wireless microphone to any one classroom, as long as normal boot-strap can carry out automatic frequency aligning, successfully to using after frequency, meet the classroom use that microphone of a teacher just can be equipped with to any one reception completely;
3) novel product is integrated 2.4GHz ANTENN AUDIO reception technique, power amplifier and three kinds of technical combinations of audio amplifier, forms an integral body, and both convenient use, greatly reduced again the cost of product, was conducive to large batch of popularization.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model embodiment;
Fig. 2 is the end view of the utility model embodiment;
Fig. 3 is the internal structure schematic diagram of the utility model embodiment;
In figure, (1) sound box, (2) metal installation panel, (3) power switch key, (4) power line, (5) master control circuit board, (6) transformer, (7) heat-dissipating aluminium plate, (8) power stage terminals, (9) microphone volume adjustment knob, (10) microphone effect adjusting knob, (11) audio volume adjusting knob, (12) microphone input interface, (13) audio input interface.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
The present embodiment, with reference to Fig. 1～Fig. 3, digital active loudspeaker public address all-in-one, comprise sound box 1 and be contained in the loud speaker of sound box 1 inside and the circuit control connection parts that are electrically connected with loud speaker, in sound box 1 side, be bolted with Demountable metallic installation panel 2, these metal installation panel 2 lateral surface lower ends are provided with power switch key 3 and power line 4, and at metal installation panel 2 lateral surfaces, Audio Controls is installed, described circuit control connection parts comprise being spirally connected and are fixed on master control circuit board 5 and the transformer 6 of metal installation panel 2 medial surfaces, this master control circuit board 5 comprises power amplification circuit, heat-dissipating aluminium plate 7 and 2.4GHz ANTENN AUDIO receiver for being connected with wireless microphone pairing, this Audio Controls comprises the microphone input interface 12 that is connected with cable microphone and for the audio input interface 13 in accessing to audio source, when using cable microphone to insert microphone input interface 12, will automatically cut off wireless microphone, connect cable microphone.
In addition, at metal installation panel 2 lateral surfaces, be provided with for connecting the power stage terminals 8 of external voice box, can the various external audio amplifiers of external output.The lateral surface of this metal installation panel 2 also has additional microphone volume adjustment knob 9, microphone effect regulates and revolves 10 buttons and audio volume adjusting knob 11.Other being provided with of this microphone input interface 12, be used to indicate the indicator light that microphone input is switched.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as protection range of the present utility model.
Claims (6)
1. digital active loudspeaker public address all-in-one, comprise sound box and be contained in the loud speaker of sound box inside and the circuit control connection parts that are electrically connected with loud speaker, in sound box side, be bolted with Demountable metallic installation panel, this metal installation panel lateral surface lower end is provided with power switch key and power line, and at metal installation panel lateral surface, Audio Controls is installed, described circuit control connection parts comprise being spirally connected and are fixed on master control circuit board and the transformer of metal installation panel medial surface, it is characterized in that: this master control circuit board comprises power amplification circuit, heat-dissipating aluminium plate and 2.4GHz ANTENN AUDIO receiver for being connected with wireless microphone pairing, this Audio Controls comprises the microphone input interface that is connected with cable microphone and for the audio input interface in accessing to audio source.
2. digital active loudspeaker public address all-in-one according to claim 1, is characterized in that: at metal installation panel lateral surface, be provided with for connecting the power stage terminals of external voice box.
3. digital active loudspeaker public address all-in-one according to claim 1, is characterized in that: the lateral surface of this metal installation panel also has additional microphone volume adjustment knob, microphone effect adjusting knob and audio volume adjusting knob.
4. according to digital active loudspeaker public address all-in-one described in claim 1～3 any one, it is characterized in that: other being provided with of this microphone input interface, be used to indicate the indicator light that microphone input is switched.
5. according to digital active loudspeaker public address all-in-one described in claim 1～3 any one, it is characterized in that: this sound box is square structure.
6. according to digital active loudspeaker public address all-in-one described in claim 1～3 any one, it is characterized in that: this sound box front is provided with the steel mesh of being convenient to sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458710.XU CN203435128U (en) | 2013-07-30 | 2013-07-30 | Sound-amplifying all-in-one machine for digital active sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458710.XU CN203435128U (en) | 2013-07-30 | 2013-07-30 | Sound-amplifying all-in-one machine for digital active sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203435128U true CN203435128U (en) | 2014-02-12 |
Family
ID=50064139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320458710.XU Expired - Fee Related CN203435128U (en) | 2013-07-30 | 2013-07-30 | Sound-amplifying all-in-one machine for digital active sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203435128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551597A (en) * | 2018-04-28 | 2018-09-18 | 珠海市田森电子科技有限公司 | A kind of control unit for electronic control unit |
-
2013
- 2013-07-30 CN CN201320458710.XU patent/CN203435128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551597A (en) * | 2018-04-28 | 2018-09-18 | 珠海市田森电子科技有限公司 | A kind of control unit for electronic control unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20210730 |