CN202488710U - Multifunctional portable loudspeaker - Google Patents
Multifunctional portable loudspeaker Download PDFInfo
- Publication number
- CN202488710U CN202488710U CN2012200819989U CN201220081998U CN202488710U CN 202488710 U CN202488710 U CN 202488710U CN 2012200819989 U CN2012200819989 U CN 2012200819989U CN 201220081998 U CN201220081998 U CN 201220081998U CN 202488710 U CN202488710 U CN 202488710U
- Authority
- CN
- China
- Prior art keywords
- amplifier
- signal
- preamplifier
- circuit
- input
- 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
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model provides a multifunctional portable loudspeaker, and relates to the field of electroacoustic reproduction. The multifunctional portable loudspeaker is provided with a signal superposition preamplifier, wherein the input end of the signal superposition preamplifier is connected in parallel with a moving picture experts group audio layer-3 (MP3) signal preamplifier and a microphone preamplifier; the input end of the MP3 signal preamplifier is connected with an MP3 signal input circuit; the input end of the microphone preamplifier is connected with a microphone signal input circuit; the output end of the signal superposition preamplifier is connected with a volume control circuit; the volume control circuit is connected with a power post-amplifier; the output end of the power post-amplifier is connected with an earphone output circuit, a sound recording output circuit and a speaker output circuit respectively; and the output end of a power switch is connected with the MP3 signal preamplifier, the microphone preamplifier and the signal superposition preamplifier respectively, and the input end of the power switch is sequentially connected in series with a charging circuit and a power converter.
Description
Technical field
The utility model relates to electroacoustic sound reproduction field, relates in particular to the portable multifunctional loudspeaker.
Background technology
Loudspeaker is a kind of player that notice, news, music are play in the public arena that is used for; This on the market micropkonic style is varied; Function is also more and more; But present micropkonic function still is confined to the field that amplifies, how with micropkonic function and purposes expansion diversification, is to be worth inquiring into.
The utility model content
The utility model purpose is to overcome the weak point of above-mentioned prior art, and to the problem that prior art exists, the utility model technical problem to be solved is that a kind of portable multifunctional loudspeaker will be provided.
For reaching above-mentioned purpose, the utility model is achieved through following technical proposals:
A kind of portable multifunctional loudspeaker; Said loudspeaker is provided with a prime signal superimposing amplifier; Prime signal superimposing amplifier input is parallel with MP3 signal pre-amplifier, MIC PREAMP amplifier; MP3 signal pre-amplifier input connects the MP3 signal input circuit, and the MIC PREAMP amplifier in connects the microphone signal input circuit, and prime signal superimposing amplifier output connects volume control circuit; Volume control circuit connects back level power amplifier; Back level power amplifier output connects earphone output circuit, recording output circuit, loudspeaker output circuit respectively, and the mains switch output connects MP3 signal pre-amplifier, MIC PREAMP amplifier, prime signal superimposing amplifier respectively, and the mains switch input is serial connection charge circuit, power supply changeover device successively.
The advantage of the utility model is:
1: be easy to carry;
2: function with walkman.
Description of drawings
Fig. 1 is the system configuration sketch map of the utility model.
Embodiment
For further understanding characteristic, technological means and the specific purposes that reached, the function of the utility model, below embodiment the utility model is described in further detail.
As shown in Figure 1: a kind of portable multifunctional loudspeaker; Said loudspeaker is provided with a prime signal superimposing amplifier 5; Prime signal superimposing amplifier 5 inputs are parallel with MP3 signal pre-amplifier 2, MIC PREAMP amplifier 4, and MP3 signal pre-amplifier 2 inputs connect MP3 signal input circuit 1, and MIC PREAMP amplifier 4 inputs connect microphone signal input circuit 3; 3.5 mm interfaces are adopted in the microphone input; Prime signal superimposing amplifier 5 outputs connect volume control circuit 6, and volume control circuit 6 connects back level power amplifier 8, and back level power amplifier 8 outputs connect earphone output circuit 7, recording output circuit 13, loudspeaker output circuit 9 respectively; Earphone output circuit 7 adopts the interface of 3.5mm; Built-in MP3 player, mains switch 12 outputs connect MP3 signal pre-amplifier 2, MIC PREAMP amplifier 4, prime signal superimposing amplifier 5 respectively, and mains switch 12 inputs are serial connection charge circuit 11, power supply changeover device 10 successively.
This portable multifunctional loudspeaker is convenient to the shoulder back of the body, waist is hung or place the desktop use.Can match tie clip formula, head microphone.Having pocket, power saving, the powerful best-of-breed functionality clearly of sound, is school, kindergarten, school instruction, the rally of expounding doctrines and experiences of church's temple; The lecture bulletin of meeting room; The explanation of visiting activity, the advertisement of exhibition, the commander of guide or procession; The mirror of computer multi-media is listened and is amplified etc., the best of small gatherings sharp weapon that amplify.
The micropkonic power output of this portable multifunctional is: 7W (RMS) 8 Ohms; Frequency response is: 270Hz ~ 20KHz ± 10dB; Loudspeaker: 2.5 inch cone gamuts; Power supply: available dry cell, rechargeable battery or directly use AC ADAPTOR charging; Service time: charge and to use about 8 hours voice to amplify in 4 hours continuously.Maximum characteristics are to have walkman and two kinds of functions of loudspeaker.Concrete design feature is following:
1. adopt CLASS D power amplifier, efficient is high;
2. power output is big, RMS power 7W, maximum power 10W;
3. energy consumption is little, uses the common AA battery of 6 joints, when voice amplify, can use continuously 4--8 hour;
4. this product can charge to rechargeable battery in addition, and the charging interval is short, and the 1300-2000MHA battery can be accomplished charging between 2-4H, and has the intelligent charge function, and battery is promptly stopped power supply after accomplishing charging, can not damage battery because of overcharging;
5. this product is furnished with the power supply adaptor that meets the ERP5 standard, also has the function of using while charging;
6. MP3-has all functions that market MP3 uses, volume control, and song is selected, different loop play patterns etc., and have 2 kinds of interfaces of USB/SD card selective, also can record.
Market similar products function has only sound amplification function less, rare MP3 function, and power is less, uses common power amplifier, exports only 3-5W, and power consumption is big, or do not have charge function.
The above embodiment that lifts is only as conveniently illustrating the utility model; Be not that the utility model is done any type of restriction; Have common knowledge the knowledgeable in the technical field under any, if provide in the scope of technology not breaking away from the utility model, example is executed in the equivalence that utilizes technology contents that the utility model discloses to do part change or modification; And break away from the technical characterictic content of the utility model, all still belong in the scope of the utility model technical characterictic.
Claims (1)
1. portable multifunctional loudspeaker; It is characterized in that: said loudspeaker is provided with a prime signal superimposing amplifier (5); Prime signal superimposing amplifier (5) input is parallel with MP3 signal pre-amplifier (2), MIC PREAMP amplifier (4); MP3 signal pre-amplifier (2) input connects MP3 signal input circuit (1); MIC PREAMP amplifier (4) input connects microphone signal input circuit (3); Prime signal superimposing amplifier (5) output connects volume control circuit (6), and volume control circuit (6) connects back level power amplifier (8), and back level power amplifier (8) output connects earphone output circuit (7), recording output circuit (13), loudspeaker output circuit (9) respectively; Mains switch (12) output connects MP3 signal pre-amplifier (2), MIC PREAMP amplifier (4), prime signal superimposing amplifier (5) respectively, and mains switch (12) input is serial connection charge circuit (11), power supply changeover device (10) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200819989U CN202488710U (en) | 2012-03-07 | 2012-03-07 | Multifunctional portable loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200819989U CN202488710U (en) | 2012-03-07 | 2012-03-07 | Multifunctional portable loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202488710U true CN202488710U (en) | 2012-10-10 |
Family
ID=46963093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200819989U Expired - Fee Related CN202488710U (en) | 2012-03-07 | 2012-03-07 | Multifunctional portable loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202488710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104918197A (en) * | 2015-06-29 | 2015-09-16 | 常州市荣顺电子有限公司 | Hung portable multifunctional sound amplifier |
-
2012
- 2012-03-07 CN CN2012200819989U patent/CN202488710U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104918197A (en) * | 2015-06-29 | 2015-09-16 | 常州市荣顺电子有限公司 | Hung portable multifunctional sound amplifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205123974U (en) | Multifunctional bluetooth sound box | |
| CN203014905U (en) | Cellphone bluetooth sound box pedestal | |
| CN212486738U (en) | Tracking type wireless earphone charging box | |
| CN203691612U (en) | Cluster type multifunctional audio communication system | |
| CN202488710U (en) | Multifunctional portable loudspeaker | |
| CN203180558U (en) | Multimedia mobile power supply | |
| CN202374410U (en) | Active sound box capable of connecting with cell phone | |
| CN201976160U (en) | Mobile phone base | |
| CN201717940U (en) | Mobile phone provided with hand-free music playing function | |
| CN204968109U (en) | Simple and easy cell -phone public address set | |
| CN202931540U (en) | Induction sound box | |
| CN202998438U (en) | Wireless sound box | |
| CN202750145U (en) | Mini karaoke (KTV)-singing device of mobile phone device | |
| CN201893906U (en) | Earphone with MP3 | |
| CN204392570U (en) | A kind of Novel small-sized electronic microphone equipment for classroom | |
| CN204697021U (en) | A kind of multimedia active loundspeakers control circuit | |
| CN203748836U (en) | Loud speaker knapsack | |
| CN203327218U (en) | Portable stereo supporting NFC identification | |
| CN204886984U (en) | FM transmitter | |
| CN201682602U (en) | Annular earphones | |
| CN202796054U (en) | Tape walkman | |
| CN203387633U (en) | Sound device | |
| CN203608359U (en) | Portable wireless digital teaching public address system device | |
| CN220755020U (en) | Mobile phone adsorption type wireless Bluetooth headset | |
| CN202085307U (en) | Portable multimedia loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multifunctional portable loudspeaker Effective date of registration: 20180313 Granted publication date: 20121010 Pledgee: China Co truction Bank Corp Dongguan branch Pledgor: Dongguan Jingheng Electronic Co., Ltd. Registration number: 2018440000047 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20200307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |