CN2269025Y - Speaker without distribution wires - Google Patents
Speaker without distribution wires Download PDFInfo
- Publication number
- CN2269025Y CN2269025Y CN 95227956 CN95227956U CN2269025Y CN 2269025 Y CN2269025 Y CN 2269025Y CN 95227956 CN95227956 CN 95227956 CN 95227956 U CN95227956 U CN 95227956U CN 2269025 Y CN2269025 Y CN 2269025Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- back seat
- audio frequency
- power supply
- loudspeaker
- 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
Links
Images
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- Circuits Of Receivers In General (AREA)
Abstract
The utility model relates to a sound transmitting device for sound amplification with a horn, comprising an antenna, a cordless receiving circuit, a demoding circuit, a power supply, a power supply control circuit, an audio frequency amplifying circuit and a horn. The antenna is erected on the outer and annular surface of a back seat of the horn. The power supply is fixedly arranged at the tail part of the back seat of the horn. The cordless receiving circuit, the decoding circuit, the power supply control circuit and the audio frequency amplifying circuit are installed in the back seat of the horn. The power supply can be composed of a charging form panel and an accumulator. The form panel is arranged on the outer and annular surface of the back seat of the horn. In the utility model, each circuit is assembled into the horn integrally to achieve the aim of cordless broadcast. Therefore, the installation of a speaker is caused to be unlimited, and the speaker can be place at the position with better sound effect of loud-speaking. The utility model has the advantages of convenient installation and uneasy breakage.
Description
The utility model relates to a kind of sound dispensing device that amplifies with loudspeaker.
Utilize the use occasion of the Public Address System of loud speaker to grow with each passing day, for example broadcasting in school, exhibition, lecture, community's broadcasting, the village, building site
The existing sound system (referring to Fig. 1) of broadcasting generally is made up of microphone (1), loudspeaker (2), power supply (3), output transformer (4), long Distance Transmission lead (5), secondary transformer (6) and loudspeaker (7) etc., to reach the purpose of broadcast.Yet, because loudspeaker output needs transfer wire, secondary transformer through output transformer, long distance, just arrive loudspeaker at last, construction cost height not only, the time is long, and energy consumption on the line is quite big, can not reach the laser propagation effect of the best.In addition because transfer wire design for open-wire line, in wiring need through go across the road, village community, Fang Zhai, mountain area, field and other communal facility, not only construction is difficult, destroy the attractive in appearance of environment, or underground the burying underground of cutting the earth, and circuit, equipment suffers easily to destroy and steal.Simultaneously, existed system broadcast object that frequent need are moved more seems and can not follow.
The purpose of this utility model be to provide a kind of can wireless broadcast exempt from the distribution loud speaker.
The utility model comprises that existing antenna, wireless receiving circuit, decoding circuit, audio frequency enlarge circuit, power supply and power control circuit, loudspeaker, antenna installation is on the outer ring surface of loudspeaker back seat, power supply is fixedly arranged on the afterbody of loudspeaker back seat, and wireless receiving circuit, decoding circuit, audio frequency enlarge circuit and power control circuit is installed in the loudspeaker back seat.The input termination antenna of wireless receiving circuit, the output of wireless receiving circuit connect audio frequency respectively and enlarge the reconciliation circuit decoding circuit, and the output of decoding circuit connects power control circuit, and the output of power control circuit connects audio frequency and enlarges circuit, and audio frequency enlarges circuit and connects loudspeaker.
Power supply can comprise storage battery and solar recharging template, and storage battery is located at the afterbody of loudspeaker back seat, and the solar recharging template is fixedly arranged on the outer ring surface of loudspeaker back seat, and the solar recharging template links to each other with the electrode of storage battery.
The utility model utilizes existing wireless broadcast communication principle, with antenna, wireless receiving circuit, a wireless microphone, promptly reaches the purpose of wireless broadcast.Not only the installation of loud speaker is not subjected to place and limited in number, can place the position of the preferable audio of raising one's voice, and installs easylier, saves cost, be difficult for wrecking, and the calling party can arbitrarily move within the specific limits.
Fig. 1 is the structured flowchart of existing loudspeaker.
Fig. 2 is an outside drawing of the present utility model.
Fig. 3 is a structured flowchart of the present utility model.
Fig. 4 is embodiment circuit theory diagrams of the present utility model.
Embodiment: as Fig. 2,3, the utility model comprises that antenna (1), wireless receiving circuit (2), decoding circuit (3), audio frequency enlarge circuit (4), power control circuit (5), storage battery (6), solar recharging template (7) and loudspeaker (8).The input termination antenna of wireless receiving circuit, antenna is located on the outer ring surface of loudspeaker (8) back seats (81), and output connects audio frequency expansion reconciliation circuit decoding circuit respectively, the output of decoding circuit connects power control circuit, power control circuit output connects audio frequency and enlarges circuit, the output that audio frequency enlarges circuit connects loudspeaker, and the solar recharging template connects storage battery.Wireless receiving circuit, decoding circuit, audio frequency enlarge circuit, power control circuit is installed in the loudspeaker back seat.Storage battery is fixedly arranged on the afterbody (82) of loudspeaker back seat, and solar recharging template (7) is fixedly arranged on the outer ring surface of loudspeaker back seat.
Fig. 4 provides a kind of circuit theory diagrams that embodiment adopts.Antenna inserts the input circuit of wireless receiving circuit, triode Q
1, Q
2, Q
3And integrated circuit (IC)
1(decoder MC3362P) and auxiliary member thereof are wireless receiving circuit.Switch control integrated circuit IC
2(ED-9), operational amplifier IC
3A(2904), R-S trigger IC
4A, IC
4B(MC4001) and on-off plug seat SW
1Deng composition decoding circuit, triode Q
6, integrated circuit (IC)
7Audio frequency such as (operational amplifier TDA2030A) composition enlarges circuit, and wireless receiving circuit is connected to decoding circuit respectively and audio frequency enlarges circuit.The output of decoding circuit is connected to by integrated circuit (IC)
4C, IC
4D(buffer MC4001) and triode Q
5Deng the power control circuit of forming, power control circuit output connects audio frequency and enlarges circuit.The output that audio frequency enlarges circuit is connected to loudspeaker.Solar recharging template BATT
1, BATT
2Change solar energy into electrical power storage in storage battery BT
1, BT
2In, with the work of supply circuit.Integrated circuit (IC) in addition
5(78L05), IC
6(7812) and IC
8(7808) be voltage adjuster.
Because audio signal that each microphone sent is set at single password, therefore when meeting mutually after the decoding circuit analysis, promptly output signal to power control circuit, the phase mutual interference that causes when avoiding different microphones to give orders or instructions.After power control circuit is received signal, promptly control its mains switch, make audio signal input audio frequency enlarge circuit, and promote sound horn,, promptly reach the purpose of wireless broadcast because all circuit all are installed in the back seat inside of loudspeaker.
Claims (2)
1. exempt from the distribution loud speaker, comprise antenna, wireless receiving circuit, decoding circuit, power supply and power control circuit, audio frequency enlarges circuit and loudspeaker, the input termination antenna of wireless receiving circuit, the output of wireless receiving circuit connects audio frequency respectively and enlarges the reconciliation circuit decoding circuit, the output of decoding circuit connects power control circuit, the output of power control circuit connects audio frequency and enlarges circuit, audio frequency enlarges circuit and connects loudspeaker, it is characterized in that antenna installation is on the outer ring surface of loudspeaker back seat, power supply is fixedly arranged on the afterbody of loudspeaker back seat, wireless receiving circuit, decoding circuit, power control circuit and audio frequency enlarge circuit and are installed in loudspeaker back seat inside.
2. the distribution loud speaker of exempting from as claimed in claim 1, it is characterized in that power supply comprises storage battery and solar recharging template, storage battery is fixedly arranged on the afterbody of loudspeaker back seat, and the solar recharging template is fixedly arranged on the outer ring surface of loudspeaker back seat, and the solar recharging template links to each other with the electrode of storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227956 CN2269025Y (en) | 1995-12-08 | 1995-12-08 | Speaker without distribution wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227956 CN2269025Y (en) | 1995-12-08 | 1995-12-08 | Speaker without distribution wires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2269025Y true CN2269025Y (en) | 1997-11-26 |
Family
ID=33873663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95227956 Expired - Fee Related CN2269025Y (en) | 1995-12-08 | 1995-12-08 | Speaker without distribution wires |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2269025Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007003074A1 (en) * | 2005-07-01 | 2007-01-11 | Shuzhe Fang | A wireless outdoor sound equipment |
| CN106060731A (en) * | 2016-07-01 | 2016-10-26 | 合肥天馈信息技术有限公司 | Solar loudspeaker for use in rural communications |
-
1995
- 1995-12-08 CN CN 95227956 patent/CN2269025Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007003074A1 (en) * | 2005-07-01 | 2007-01-11 | Shuzhe Fang | A wireless outdoor sound equipment |
| CN106060731A (en) * | 2016-07-01 | 2016-10-26 | 合肥天馈信息技术有限公司 | Solar loudspeaker for use in rural communications |
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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 |