CN2556885Y - Sound with battery for outdoor activities - Google Patents
Sound with battery for outdoor activities Download PDFInfo
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- CN2556885Y CN2556885Y CN 02271047 CN02271047U CN2556885Y CN 2556885 Y CN2556885 Y CN 2556885Y CN 02271047 CN02271047 CN 02271047 CN 02271047 U CN02271047 U CN 02271047U CN 2556885 Y CN2556885 Y CN 2556885Y
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Abstract
The utility model relates to an outdoors movable speaker carrying a storage battery, and is structurally characterized in that the utility model consists of a multifunctional sound box 1 and a storage battery set 2, wherein, the storage battery 2 can take a model of either an internal set or an extraposition; the multifunctional sound box 1 is internally provided with a wired microphone, a radio microphone receiving circuit, an audio player, an audio input circuit, an audio power magnify circuit, an audio output circuit, a wireless receiving/sending circuit, a radio signal processing circuit, a power supply changeover circuit and a changeable voltage direct current supply output circuit. Not only the sound box can use the DC, but also other foreign equipments can use the DC provided by the sound box, and signals can be mutually sent and received among a plurality of the multifunctional sound boxes 1 by the wired/wireless receiving/sending circuit. The utility model takes the storage battery (set) as the working power supply, and works as public address can be made in longer time and by a bigger power without any external power supply, thus being widely suitable for outdoors public address and musical activities.
Description
Affiliated technical field
The utility model relates to a kind of sound equipment, particularly a kind of outdoor activities sound equipment with storage battery, be applicable to outdoor amplify, broadcast, music activity such as recording.Belong to the sound technique field.
Background technology
People carry out activity, exercise out of doors, when delivering a speech, doing product introduction, hold an exhibition and gathering, often use sound appliances such as radio-cassette player, portable sound amplifier that sound is amplified.But there is following shortcoming in these sound appliances: (1) does power supply with dry cell, the less power output of sound appliances that causes of power of dry cell is less on the one hand, and playback effect is poor, and dry cell is disposable use on the other hand, service time is short, is difficult to collection and treatment, causes environmental pollution easily; (2) circuit structure is too simple and crude, and sound is less.The sound equipment of prior art or public address equipment must external ACs, and big, the Heavy Weight of volume on the one hand on the other hand, in the many occasion people of people process from the electric wire, causes dismounting electric wire difficulty, and is both inconvenient, also dangerous.
Technology contents
The purpose of this utility model is for the outdoor activities sound equipment of band storage battery is provided, have simple in structure, volume is little, loud, continuous service time is long, characteristics safe in utilization.
The purpose of this utility model can reach by taking following measure: the outdoor activities sound equipment of band storage battery, its design feature is: comprise multifunctional sound box and batteries, batteries is taked built-in or external, and multifunctional sound box is provided with wired and ANTENN AUDIO receiver, ANTENN AUDIO induction field generation transmitter, loudspeaker, audio input end, audio output, variable voltage dc power output end; Can receive or send signal each other by wired or wireless audio frequency (induction field) receiver, wired or wireless audio frequency (induction field) transmitter between a plurality of multifunctional sound boxes, the DC power supply of multilevel voltage also can be provided to other equipment by the variable voltage dc power output end.
The purpose of this utility model can also reach by taking following measure:
Be provided with wired in the multifunctional sound box and wireless microphone receiving circuit, audio frequency input circuit, audio player, audio power amplifier circuit, audio output circuit, wireless receiving/transtation mission circuit, wireless signal treatment circuit, power-switching circuit and DC power-supply circuit; The output of wired or wireless microphone transtation mission circuit, audio output circuit connects the input of audio power amplifier circuit, and the input of the output termination loudspeaker of audio power amplifier circuit plays out sound through loudspeaker; 220 volts of power supplys are behind step-down rectifier, but accumulators (group) charging, and storage battery (group) is provided by the dc supply that provides of multifunctional sound box, receives or send signal each other by wired or wireless reception/transtation mission circuit between the multifunctional sound box.Storage battery (group) also can be other equipment working power is provided after the time variant voltage knob be adjusted.
Multifunctional sound box comprises the shell that is made of several side surface bodies, and loudspeaker, control switch, control handle, wire/wireless signal input and display are set on the shell; The built-in audio-frequency power amplifier of the inner chamber of shell, audio frequency preamplifier, microphone preamplifier, wired and wireless microphone receiving circuit, the wired output circuit of audio frequency, audio frequency (induction field) wireless transceiver circuit, Karaoke sound treatment circuit, light decoration control circuit, under-voltage warning circuit and power circuit are formed by connecting.The input of the input of the input of wireless microphone receiving circuit, wireline audio input, ANTENN AUDIO (induction field) and wireless receiving circuit, Karaoke sound treatment circuit can receive various audio input signals, doing preposition audio power through audio frequency preamplifier, microphone preamplifier amplifies, amplifying by audio-frequency power amplifier, export to loudspeaker, play with loudspeaker.Multifunctional sound box inside is provided with internal battery (group), anti-reverse continuous-current plant, short-circuit protection, DC power supply transformation output device, DC power supply output/input device, external AC power supply rectifier charging device.
On the shell of multifunctional sound box high pitch is set, middle pitch, bass, subwoofer and giving vent to anger/sound hole, instrument, work demonstration/indicator light, display screen, light decoration, work light, the volume adjusting knob, TREMBLE, MID, LOW, the subwoofer adjusting knob, transmitting antenna, reception antenna, receive, record/player core, CD, VCD, DVD, player clock mechanisms such as CD-ROM drive, audio input interface, cable microphone lead-in wire interface, wireless microphone receiving system interface, frequency induction field wireless transmitter interface, sound channel output/input socket or interface, DC power supply output adjusting knob, control switch/control knob, handle, dc supply input socket or interface, external AC power supply charging socket, DC power supply transformation output socket or interface.
The utlity model has following outstanding advantage:
1, this sound equipment adopts storage battery (group) as working power, but does not need external power supply with regard to long period, more high-power work such as amplify; Be widely used in the open air activity that amplifies.
2, between each multifunctional sound box of this sound equipment, available wired or wireless transmission audio frequency (induction field) signal is amplified a plurality of multifunctional sound box loudspeaker of promotion.Each multifunctional sound box can connect the work that is combined together with wired or wireless (emission, reception) mode; Has advantage of wide range of application.
3, available wired or wireless (amplitude modulation or frequency modulation) connected mode work between extraneous signal and each multifunctional sound box; Have that an audio amplifier is used more, multiple functional characteristics.
4, this sound equipment can be exported multichannel, multiscale dc supply (pressure) simultaneously, not only can provide self power supply, and can provide dc supply by other stereo sets, so that provide odd-job power supply (pressure), make its operate as normal to each signal source equipment such as (as radio and tape players).
The drawing explanation
Fig. 1 is the structured flowchart of the utility model embodiment 1.
Fig. 2 is the external structure schematic diagram of the multifunctional sound box of the utility model embodiment 1.
Fig. 3 is the multifunctional sound box built-in circuit structured flowchart of the utility model embodiment 1.
Fig. 4 is the wireless microphone transmission circuit schematic diagram of the utility model embodiment 1.
Fig. 5 is audio frequency preamplifier and the microphone preamplifier circuit theory diagrams of the utility model embodiment 1.
Fig. 6 is audio frequency power amplifier and the transtation mission circuit schematic diagram of the utility model embodiment 1.
Fig. 7 is single battery feed circuit diagram of the utility model embodiment 1.
Fig. 8 is two battery circuit schematic diagrams of the utility model embodiment 1.
Fig. 9 is the transforming circuit figure of the utility model embodiment 1.
Figure 10 is the user mode schematic diagram of the multifunctional sound box of the utility model reality.
Figure 11 is the audio power amplifier circuit schematic diagram of the utility model embodiment 2.
Figure 12 is the audio power amplifier circuit schematic diagram of the utility model embodiment 3.
Preferred embodiment
Fig. 1 to Fig. 9 constitutes embodiment 1 of the present utility model.
As can be seen from Figure 1, present embodiment comprises multifunctional sound box 1 and batteries 2, storage battery 2 is taked external mode, multifunctional sound box 1 ANTENN AUDIO (induction field) receiver 27, ANTENN AUDIO (induction field) transmitter 26, loudspeaker 15, audio input end 25, audio output 34, dc power output end 40.
As can be seen from Figure 2, multifunctional sound box 1 is a tetragonal body, on its shell 3 high pitch is set, middle pitch, bass, subwoofer 15, instrument, work demonstration/indicator light 17, display 18, light decoration 19, work light 20, volume adjusting knob 21, TREMBLE 22, MID 23, LOW 24, wireline audio input socket 25, audio frequency (induction field) transmitting antenna 26, audio frequency (induction field) reception antenna 27, receive, record/player core 28, CD, VCD, DVD, player clock mechanisms such as CD-ROM drive 29, AC power input interface 30, variable DC power supply output interface 31, wireless microphone R-T unit interface 32, cable microphone interface 33, sound channel output/input socket or interface 34, DC power supply output adjusting knob 35, control switch, control knob 36, handle 37, direct current output indication 38, exchange input indication 39, DC power supply transformation output socket or interface, work light socket or interface, display 18 adopts LCDs.
As can be seen from Figure 3, the built-in audio-frequency power amplifier 9 of the inner chamber of shell 3, audio frequency preamplifier 10, microphone preamplifier 11, wireless microphone transmission circuit 12, audio wireless transmission circuit 13, Karaoke sound treatment circuit 14, light decoration control circuit 5, under-voltage warning circuit 16 and power circuit 17 are formed by connecting, and the input of power circuit 17, output connect the output of batteries 2, the power input of each operating circuit respectively; The input of the input of the input of wireless microphone transmission circuit 12, audio wireless transmission circuit 13, Karaoke sound treatment circuit 14 is wire/wireless signal input 7 respectively, the input of audio frequency preamplifier 10, microphone preamplifier 11, output connect the output of wireless microphone transmission circuit 12, audio wireless transmission circuit 13, the input of audio-frequency power amplifier 9 respectively, the output of Karaoke sound treatment circuit 14 connects the input of audio-frequency power amplifier 9, and the output of audio-frequency power amplifier 9 connects the input of loudspeaker 15.Multifunctional sound box 1 inside is provided with internal battery group, anti-reverse continuous-current plant, short-circuit protection, DC power supply potential device, DC power supply output/input device, external AC power supply rectifier charging device.
In the present embodiment: audio-frequency power amplifier 9, audio frequency preamplifier 10, microphone preamplifier 11, wireless microphone receiving circuit 12, audio wireless transmission circuit 13, Karaoke sound treatment circuit 14, light decoration control circuit 5, under-voltage warning circuit 16 adopt the custom circuit of prior art.
As can be seen from Figure 4, triode VT and inductance L, capacitor C 2 etc. constitute high-frequency generator, voice signal is picked up by Electret condenser microphone BM, amplify through VT, its high-frequency oscillation signal is modulated, and the FM signal after the modulation is radiate by antenna W, and frequency is in the 88-108MHz scope, after receiver on the multifunctional sound box (broadcast receiver etc.) is received signal, be amplified to audio frequency power amplifier to loudspeaker.When being connected work with multifunctional sound box, can adopt the method for amplitude modulation or frequency modulation to be emitted to reception machine Source Music on the multifunctional sound box etc., receive back to the audio frequency in the multi-functional audio amplifier and be amplified to loudspeaker with wireless microphone etc.
As can be seen from Figure 5, present embodiment is provided with independently audio frequency preamplifier and microphone preamplifier, select by two groups of section K switch 3, K4, the input of circuit connects the signal input of external equipments such as passing through section switch connection radio-cassette player and wireless receiving circuit.Among Fig. 4: the model of IC is TA7307P, TA7137 or PLA3210, and BG1～BG4 model is 9011.
As can be seen from Figure 6, from audio signals such as preposition amplifications through A, A1 to the audio frequency power amplifier input, behind audio frequency power amplifier, export the section switch to, the section switch connects 1, and audio frequency power amplifier output is arranged; Connect 2, audio frequency (or induction field) emission output is arranged; Connect 3, the load of multifunctional sound box inside trumpet is arranged.The section switch does not connect at 1 o'clock, the audio frequency power amplifier output socket 1 (end) of other multifunctional sound box, and socket (end)---the pin 3-one that is the section switch is to promote this multifunctional sound box loudspeaker can to insert the audio frequency power amplifier input of this multifunctional sound box.
Among Fig. 6: B is the audio frequency step-up transformer, and power discharging IC is TDA2003, and K switch optionally can close or disconnect.Audio voltage is promoted after the antenna emission produces a frequency induction field by this transformer.
From Fig. 7, Fig. 8 as can be known, the two ends of storage battery E connect a charging device BE, and the output of storage battery E connects device for transformer BT, from the output output low-voltage dc power supply of BT.No matter be to adopt single storage battery or two batteries, present embodiment all is provided with constant dc current source output terminal mouth and adjusting pressuring dc power output port, to adapt to the power supply needs of different stereo sets, as long as promptly have a multifunctional sound box, music activity such as just can want that the open air amplifies, and need not to worry into DC power supply.
As can be seen from Figure 9, triode BG1～BG2 model is 2N3055.By the elementary push-pull type oscillating circuit of forming of BG1, BG2 and transformer B, be induced to the secondary of B in the circuit, through the bridge rectifier output dc voltage, twisting section K switch 1, K2 can change output voltage values.N1=n2 among the figure, n3=n4, n5=n6.
As can be seen from Figure 10, the audio signal sent of equipment such as wireless microphone M0, radio-cassette player M1 reach audio amplifier A, (A ') ..., again by audio amplifier A, (A ') ... reach audio amplifier B, (B '), C, (C ') ..., after power amplifier amplifies, promote speaker.Promptly make between multifunctional sound box and the multifunctional sound box and can receive or send signal each other, thereby a plurality of multifunctional sound boxes are coupled together use by wireless receiving/transtation mission circuit.But when with wireless mutual transmission, multi-functional audio of same time, a kind of mode that can only use emission or receive can not be sent out and receive simultaneously, can solve by switch, utters long and high-pitched sounds to avoid producing; If wired connection can be unrestricted.
As can be seen from Figure 11, the characteristics of the utility model embodiment 2 are: the power discharging IC of audio power amplifier circuit is TDA2002.All the other are with embodiment 1.
As can be seen from Figure 12, the characteristics of the utility model embodiment 3 are: the power discharging IC of audio power amplifier circuit is TDA2006.All the other are with embodiment 1.
Claims (5)
1, the outdoor activities sound equipment of band storage battery, it is characterized in that: comprise multifunctional sound box (1) and batteries (2), batteries (2) is taked internal or external mode, and multifunctional sound box (1) is formed by connecting by ANTENN AUDIO (induction field) receiver (27), ANTENN AUDIO (induction field) transmitter (26), loudspeaker (15), audio input end (25), audio output (34), dc power output end (40); Receive or send signal each other by ANTENN AUDIO (induction field) receiver (27), ANTENN AUDIO (induction field) transmitter (26) between the multifunctional sound box (1), outwards provide DC power supply by dc power output end (40).
2, the outdoor activities sound equipment of band storage battery according to claim 1, it is characterized in that: multifunctional sound box is provided with the wireless microphone receiving circuit in (1), the audio frequency input circuit, audio power amplifier circuit, audio output circuit, audio player, wireless receiving/transtation mission circuit, the wireless signal treatment circuit, power-switching circuit and DC power-supply circuit, the wireless microphone receiving circuit, the output of audio frequency input circuit connects the input of audio power amplifier circuit, the output termination loudspeaker input of audio power amplifier circuit, the input of power-switching circuit connects the output of batteries (2), output connects the input of DC power-supply circuit, and the output of DC power-supply circuit connects the power end of aforementioned circuit and the power input of back level multifunctional sound box; Receive or send signal each other by wired or wireless reception/transtation mission circuit between a plurality of multifunctional sound boxes 1.
3, the outdoor activities sound equipment of band storage battery according to claim 1 and 2, it is characterized in that: multifunctional sound box (1) comprises the shell (3) that is made of several side surface bodies, the built-in audio-frequency power amplifier of inner chamber (9) of shell (3), audio frequency preamplifier (10), microphone preamplifier (11), wireless microphone transmission circuit (12), audio wireless transmission circuit (13), Karaoke sound treatment circuit (14), light decoration control circuit (15), under-voltage warning circuit (16) and power circuit (17) are formed by connecting, the input of power circuit (17), output connects the output of batteries (2) respectively, the power input of each operating circuit; The input of wireless microphone transmission circuit (12), the input of audio wireless transmission circuit (13), the input of Karaoke sound treatment circuit (14) is wire/wireless signal input (7) respectively, audio frequency preamplifier (10), the input of microphone preamplifier (11), output connects wireless microphone transmission circuit (12) respectively, the output of audio wireless transmission circuit (13), the input of audio-frequency power amplifier (9), the output of Karaoke sound treatment circuit (14) connects the input of audio-frequency power amplifier (9), and the output of audio-frequency power amplifier (9) connects the input of loudspeaker (15).Multifunctional sound box (1) inside is provided with internal battery group, anti-reverse continuous-current plant, short-circuit protection, DC power supply potential device, DC power supply output/input device, external AC power supply rectifier charging device.
4, the outdoor activities sound equipment of band storage battery according to claim 1 and 2, it is characterized in that: on the shell of multifunctional sound box (1) high pitch is set, middle pitch, bass, subwoofer (15), instrument, work demonstration/indicator light (17), display screen (18), light decoration (19), work light (20), volume adjusting knob (21), TREMBLE (22), MID (23), LOW (24), wireline audio input socket (25), audio frequency (induction field) transmitting antenna (26), audio frequency (induction field) reception antenna (27), receive, record/player core (28), CD, VCD, DVD, player clock mechanisms such as CD-ROM drive (29), AC power input interface (30), variable voltage DC power supply output interface (31), wireless microphone receiving system interface (32), cable microphone receiving system interface (33), sound channel output/input socket or interface (34), DC power supply output adjusting knob (35), control switch/control knob (36), handle (37), direct current output indication (38) exchanges input indication (39).
5, according to the outdoor activities sound equipment of claim 1 or the described band storage battery of 2 arbitrary claims, it is characterized in that: multifunctional sound box (1) inside also is provided with internal battery group, anti-reverse continuous-current plant, short-circuit protection, DC power supply potential device, variable voltage DC power supply output/input device, external AC power supply rectifier charging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02271047 CN2556885Y (en) | 2002-06-14 | 2002-06-14 | Sound with battery for outdoor activities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02271047 CN2556885Y (en) | 2002-06-14 | 2002-06-14 | Sound with battery for outdoor activities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2556885Y true CN2556885Y (en) | 2003-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02271047 Expired - Fee Related CN2556885Y (en) | 2002-06-14 | 2002-06-14 | Sound with battery for outdoor activities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2556885Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853656A (en) * | 2010-05-18 | 2010-10-06 | 徐添贵 | Multifunctional computer-control karaoke singing machine |
| CN102065364A (en) * | 2010-12-31 | 2011-05-18 | 东莞精恒电子有限公司 | Portable wireless power amplifier |
| CN103108454A (en) * | 2013-01-14 | 2013-05-15 | 浙江生辉照明有限公司 | Multifunctional wireless light-emitting diode (LED) device and multifunctional wireless loud speaker box system |
| CN103108453A (en) * | 2013-01-14 | 2013-05-15 | 浙江生辉照明有限公司 | Multifunctional light-emitting diode (LED) device and multifunctional loud speaker box system |
| CN103152925A (en) * | 2013-02-01 | 2013-06-12 | 浙江生辉照明有限公司 | Multifunctional LED (Light Emitting Diode) device and multifunctional wireless meeting system |
| CN103517179A (en) * | 2012-06-29 | 2014-01-15 | 太仓南极风能源设备有限公司 | Wireless loudspeaker box |
| CN105049989A (en) * | 2015-08-17 | 2015-11-11 | 恩平市帕思高电子科技有限公司 | Portable outdoor speaker in wireless sharing |
| CN106160497A (en) * | 2016-08-19 | 2016-11-23 | 中山市悦辰科技实业有限公司 | A kind of high-frequency electronic pipe booster circuit |
-
2002
- 2002-06-14 CN CN 02271047 patent/CN2556885Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853656A (en) * | 2010-05-18 | 2010-10-06 | 徐添贵 | Multifunctional computer-control karaoke singing machine |
| CN101853656B (en) * | 2010-05-18 | 2012-05-30 | 徐添贵 | Multifunctional computer-control karaoke singing machine |
| CN102065364A (en) * | 2010-12-31 | 2011-05-18 | 东莞精恒电子有限公司 | Portable wireless power amplifier |
| CN103517179A (en) * | 2012-06-29 | 2014-01-15 | 太仓南极风能源设备有限公司 | Wireless loudspeaker box |
| CN103108454A (en) * | 2013-01-14 | 2013-05-15 | 浙江生辉照明有限公司 | Multifunctional wireless light-emitting diode (LED) device and multifunctional wireless loud speaker box system |
| CN103108453A (en) * | 2013-01-14 | 2013-05-15 | 浙江生辉照明有限公司 | Multifunctional light-emitting diode (LED) device and multifunctional loud speaker box system |
| CN103108453B (en) * | 2013-01-14 | 2016-05-11 | 浙江生辉照明有限公司 | A kind of Multifunctional LED device and multifunctional sound box system |
| CN103152925A (en) * | 2013-02-01 | 2013-06-12 | 浙江生辉照明有限公司 | Multifunctional LED (Light Emitting Diode) device and multifunctional wireless meeting system |
| CN105049989A (en) * | 2015-08-17 | 2015-11-11 | 恩平市帕思高电子科技有限公司 | Portable outdoor speaker in wireless sharing |
| CN106160497A (en) * | 2016-08-19 | 2016-11-23 | 中山市悦辰科技实业有限公司 | A kind of high-frequency electronic pipe booster circuit |
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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 |