CN207835749U - A kind of sound equipment and wireless Public Address System - Google Patents
A kind of sound equipment and wireless Public Address System Download PDFInfo
- Publication number
- CN207835749U CN207835749U CN201721770986.6U CN201721770986U CN207835749U CN 207835749 U CN207835749 U CN 207835749U CN 201721770986 U CN201721770986 U CN 201721770986U CN 207835749 U CN207835749 U CN 207835749U
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- China
- Prior art keywords
- module
- receiving unit
- loudspeaker
- sound equipment
- power supply
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- 230000008054 signal transmission Effects 0.000 claims description 17
- 239000013078 crystal Substances 0.000 claims description 11
- 230000005236 sound signal Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 8
- 230000006641 stabilisation Effects 0.000 abstract description 4
- 238000011105 stabilization Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model discloses a kind of sound equipment and wireless Public Address Systems, belong to the technical field of teller machines, it is desirable to provide a kind of easy for installation, signal stabilization, phonogenic new equipment and system；Technical points include shell, fixed loudspeaker and external power supply inside the shell, and receiving unit, the inlet circuit connection of the receiving unit output end and loudspeaker are additionally provided in the shell；The utility model is suitable for the occasion of the music in larger space.
Description
Technical field
The utility model is related to teller machines and the technical field of circulation way, more specifically to a kind of sound equipment and
Wireless Public Address System.
Background technology
It is presently used for the Public Address System of the large spaces such as concert, is needed to each sound equipment pull the wire and total emitter
Circuit connect because space is larger, installation it is too complicated, and use bluetooth be wirelessly connected when, the sound quality of sound equipment is bad, it is difficult to also
Former speech, and to be formed around sound quality or three-dimensional sound quality, it needs to give each sound equipment one-to-one transmission signal, circuit design
It is relative complex, it is also possible to which that phenomena such as generating signal interference, being easy error influences sound quality.
Utility model content
It is good that previous technical problem to be solved in the utility model is to provide one kind easy for installation, signal stabilization, acoustics
Public address system.
To be to provide that a kind of fidelity is high, sound-reducing is good wireless broadcasts for latter technique problem to be solved in the utility model
System for electrical teaching.
To realize previous technical purpose, a kind of sound equipment provided by the utility model, including shell, fixed loudspeaker inside the shell
, be equipped with power supply, receiving unit in the shell, power supply connects receiving unit, the output end of receiving unit and loudspeaker it is defeated
Input circuit connects..
Further, frequency divider is also connected with by circuit between the receiving unit and loudspeaker.
Further, the receiving unit includes that the second power supply module connected by circuit, VHF or uhf band connect
Module, the second crystal oscillator module, amplifier module and power amplifier module, the second power supply module is received to connect with power circuit.
Further, the receiving module is uhf band.
Further, the loudspeaker are that round table-like and rear side is divided into 4 mounting platforms, and the receiving unit is in sector
And fit with one of platform, the frequency divider is set on another mounting platform of loudspeaker.
Further, the receiving unit is fixedly mounted on the rear side of loudspeaker by the screw being diagonally arranged, and receives single
The outer arc radius of member is less than the outer edge radius of loudspeaker.
For realize latter technique purpose, a kind of wireless Public Address System provided by the utility model, including audio playback sources, with
The wireless signal transmission end of audio playback sources connection, the tranmitting frequency at the wireless signal transmission end are VHF or uhf band,
It further include the audio signal composition broadcast that the sound equipment reception wireless signal transmission end described at least one claim 1-5 is emitted
System.
Further, the wireless signal transmission end includes the input module of the first power module, input audio signal
With conversion VHF or UHF frequencies the first crystal oscillator module, above-mentioned each module respectively with the transmitting module circuit at wireless signal transmission end
Connection.
Advantageous effect
Compared with prior art, the utility model has the following advantages：
1, the utility model has the advantages of convenient installation, signal stabilization, acoustics are good, there is more stable wireless signal transfer function,
The loss of audio is small, and fidelity is high, sound it is Well-recovered, each receiving unit controls the broadcasting of each sound equipment respectively, by point
Frequency device can control the sound that different sound equipments sends out different frequency, can be divided into high frequency, intermediate frequency and low frequency, then as needed
The sound equipment for sending out different frequency music is placed on corresponding position, to form better music surrounding effect, sender unit
It is wirelessly connected by VHF or UHF frequencies and each receiving unit, ensure that the stability of signal, realize one-to-many wireless signal
It transmits.
2, receiving unit and frequency divider can be fixed together with loudspeaker, and mutually fit, and loudspeaker is facilitated to be mounted on sound equipment
In shell, and each receiving unit corresponds to a sound equipment, and signal control is more stablized.
3, sender unit provides signal source by input module, changes UHF signals by the first crystal oscillator module, and by sending out
Module is penetrated to go out wireless signal transmission.
4, receiving module receives UHF signals and is converted by the second crystal oscillator module on receiving unit, passes through amplifier and power amplifier mould
Block control plays, and the music of high frequency or intermediate frequency or low frequency is played by frequency divider control sound equipment.
Description of the drawings
Fig. 1 is the sound equipment and schematic internal view of the utility model；
Fig. 2 is the loudspeaker enlarged diagram of the utility model；
Fig. 3 is the wireless signal transmission end schematic diagram of the utility model；
Fig. 4 is the first power module circuitry schematic diagram of the utility model；
Fig. 5 is the circuit diagram of the sender unit of the utility model；
Fig. 6 is the second power supply module circuit diagram of the utility model；
Fig. 7 is the receiving module circuit diagram of the utility model；
Fig. 8 is the amplifier and power amplifier modular circuit schematic diagram of the utility model.
In figure：1, shell；2, loudspeaker；3, power supply；4, receiving unit；41, second power supply module；42, receiving module；43、
Second crystal oscillator module；44, amplifier module；45, power amplifier module；5, frequency divider；6, wireless signal transmission end；61, the first power supply mould
Block；62, transmitting module；63, input module；64, the first crystal oscillator module；7, audio playback sources.
Specific implementation mode
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
Novel protection domain is not restricted by specific implementation.
The embodiments of the present invention are such：As shown in Fig. 1~8, a kind of sound equipment, including shell 1, it is installed in shell
Loudspeaker 2 in 1 and power supply 3, shell 1 is interior to be equipped with receiving unit 4, the input terminal electricity of 4 output end of receiving unit and loudspeaker 2
Road connects.The utility model has the advantages of convenient installation, signal stabilization, acoustics are good, there is more stable music control, the damage of audio
Lose small, fidelity is high, sound it is Well-recovered.
In the present embodiment, frequency divider 5 is also connected with by circuit between receiving unit 4 and loudspeaker 2, loudspeaker 2, power supply 3,
Receiving unit 4 and frequency divider 5 can be respectively and fixedly installed in the shell 1 of sound equipment, and receiving module 42 is VHF or uhf band；Electricity
Battery supply or rechargeable battery power supply may be used in source 3.
In addition, the loudspeaker 2 in the present embodiment, which are round table-like and rear side, is divided into 4 mounting platforms, receiving unit 4 can also be in
Sector simultaneously fits with one of platform, and frequency divider 5 is set on another mounting platform of loudspeaker 2.Receiving unit 4 and frequency dividing
Device can be fixed together with loudspeaker 2, and mutually fit, and loudspeaker 2 is facilitated to be mounted in casing of sound equipment, and each receives list
Member 4 corresponds to an acoustics unit, and signal control is more stablized, and realizes one-to-many wireless signal transfer, is reduced traditional technology and is led
The inconvenience of line connection；Also more more convenient than by the one-to-one this wireless signal transfer pattern such as Bluetooth technology.
Receiving unit 4 is fixedly mounted on the rear side of loudspeaker 2, the external arc half of receiving unit 4 by the screw being diagonally arranged
Diameter is less than the outer edge radius of loudspeaker 2.Sound equipment need not both facilitate or save space with host machine wired connection when installation.It receives single
Member 4, frequency divider 5 are fixed together with loudspeaker 2, and mutually fit, and loudspeaker is facilitated to be mounted in casing of sound equipment 1,1 front side of shell
Top is equipped with hole corresponding with loudspeaker 2, facilitates the broadcasting and propagation of 2 sound of location and installation and loudspeaker of loudspeaker 2.
A kind of wireless Public Address System of the utility model, including audio playback sources 7, connect wireless with audio playback sources 7
The tranmitting frequency of signal transmitting terminal 6, wireless signal transmission end 6 is VHF or uhf band, further includes at least one above-mentioned sound equipment
Receive the audio signal composition Public Address System that wireless signal transmission end 6 is emitted.Wireless signal transmission end 6 includes the first power supply mould
Block 61, the input module 63 for inputting music signal and be converted to the first crystal oscillator module 64 of VHF or UHF signals respectively with wireless communication
62 circuit of the transmitting module connection of number transmitting terminal 6.Wireless signal transmission end 6 is wirelessly connected by UHF frequencies and each receiving unit 4
It connects, each receiving unit 4 controls the broadcasting of each sound equipment respectively, ensure that the stability of signal.
When work, multiple sound equipments of the utility model can surround meeting-place installation throughout as needed, 4 electricity of receiving unit
Road even connects with the mains 3, and electric power is provided to receiving module 42 by second power supply module 41, then the chip of receiving module 42 and the
Two crystal oscillator modules, 43 circuit connects, the signal for converting VHF or UHF frequencies, the chip of receiving module 42 also by with amplifier
The series connection of module 44 and power amplifier module 45, then connect with the inlet circuit of loudspeaker 2 by frequency divider 5, realize the effect of broadcast,
Simultaneously as there is frequency divider 5, different sound equipments can be made to send out the music of the different frequency range of high frequency or intermediate frequency or low frequency,
Then can the sound equipment of different frequency be placed on corresponding position as needed, audience is made to have better music experience.Wirelessly
Signal transmitting terminal 6 has the first power module 61 to provide electric power, and has audio playback sources 6 by input module 63 that music signal is defeated
Enter transmitting module 62, the signal of UHF frequencies converted by the first crystal oscillator module 64 being connect with the chip circuit of transmitting module 62,
Then transmitting module 62 is transferred to music signal by being wirelessly connected the receiving module 42 of each sound equipment, makes each sound equipment
Music can be played, and wireless signal transfer is more stablized, the loss of audio is small, and fidelity is high, sound it is Well-recovered.
Above are merely preferred embodiments of the utility model, it should be pointed out that for those skilled in the art,
Under the premise of not departing from the utility model structure, several modifications and improvements can also be made, it is new that these all do not interfere with this practicality
The effect and patent practicability that type is implemented.
Claims (7)
1. a kind of sound equipment, including shell (1), the loudspeaker (2) that are installed in shell (1), which is characterized in that the shell (1)
Interior to be equipped with power supply (3), receiving unit (4), power supply (3) connects receiving unit (4), output end and the loudspeaker (2) of receiving unit (4)
Inlet circuit connection, frequency divider (5) is also connected with by circuit between the receiving unit (4) and loudspeaker (2).
2. a kind of sound equipment according to claim 1, which is characterized in that the receiving unit (4) includes being connected by circuit
The second power supply module (41), VHF or the uhf band receiving module (42) that connect, the second crystal oscillator module (43), amplifier module (44) and
Power amplifier module (45), the second power supply module (41) are connect with power supply (3) circuit.
3. a kind of sound equipment according to claim 2, which is characterized in that the receiving module (42) is uhf band.
4. a kind of sound equipment according to claim 1, which is characterized in that the loudspeaker (2) are that round table-like and rear side is divided into 4
A mounting platform, the receiving unit (4) fit in sector and with one of platform, and the frequency divider (5) is set to
On another mounting platform of loudspeaker (2).
5. a kind of sound equipment according to claim 4, which is characterized in that the receiving unit (4) passes through what is be diagonally arranged
Screw is fixedly mounted on the rear side of loudspeaker (2), and the outer arc radius of receiving unit (4) is less than the outer edge radius of loudspeaker (2).
6. a kind of wireless Public Address System using claim 1-5 any one of them sound equipments, including audio playback sources (7), with
The wireless signal transmission end (6) of audio playback sources (7) connection, which is characterized in that the transmitting at the wireless signal transmission end (6)
Frequency is VHF or uhf band, and the sound equipment receives the audio signal composition broadcast system that wireless signal transmission end (6) are emitted
System.
7. a kind of wireless Public Address System according to claim 6, which is characterized in that the wireless signal transmission end (6)
The first crystal oscillator mould including the first power module (61), the input module (63) of input audio signal and conversion VHF or UHF frequencies
Block (64), above-mentioned each module are connect with the transmitting module of wireless signal transmission end (6) (62) circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721770986.6U CN207835749U (en) | 2017-12-18 | 2017-12-18 | A kind of sound equipment and wireless Public Address System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721770986.6U CN207835749U (en) | 2017-12-18 | 2017-12-18 | A kind of sound equipment and wireless Public Address System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207835749U true CN207835749U (en) | 2018-09-07 |
Family
ID=63387773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721770986.6U Expired - Fee Related CN207835749U (en) | 2017-12-18 | 2017-12-18 | A kind of sound equipment and wireless Public Address System |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207835749U (en) |
-
2017
- 2017-12-18 CN CN201721770986.6U patent/CN207835749U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 |