CN206136255U - Built -in power supply's bluetooth speaker - Google Patents

Abstract

The utility model provides a built -in power supply's bluetooth speaker is including wired microphone input module, wireless microphone input module, signal line input module, usb signal input module, bluetooth signal input module, audio frequency composite signal module, tone volume adjustment module, digital power amplifier module, power module and adapter module. Usb signal input module can read the audio signal in the USB flash disk equipment, supports MP3, multiple form such as WMA, transmission audio signal is connected with the complete machine to bluetooth signal input module accessible cell -phone or computer, charging of charge battery module is accomplished by the adapter, power management module carries out intelligent management, the digital power amplifier module of this bluetooth speaker adoption, have tin feel, efficient, characteristics that input module 0 is reliable.

Description

A kind of Baffle Box of Bluetooth of built-in power

Technical field

This utility model is related to audio amplifier field, and in particular to a kind of Baffle Box of Bluetooth of built-in power.

Background technology

Nowadays, portable loudspeaker box use range is more and more wider, but the structure function of portable loudspeaker box is fairly simple, needs To charge at any time.It is existing to take formula audio amplifier, particularly take formula audio amplifier only have single playing function, and it is actually used in, people Often need simultaneously for equipment charges such as mobile phone, notebook computers, or other electronics of grafting or electric equipment, in such case Under, people have to carry the additional devices such as charger, supply socket simultaneously, give people trip and bring inconvenience, and existing take formula Audio amplifier cannot realize above-mentioned functions.

The content of the invention

The technical problems to be solved in the utility model is to provide a kind of with built-in power realization power supply, audio signal input The Baffle Box of Bluetooth of the built-in power more than pattern.

In order to solve above-mentioned technical problem, this utility model include cable microphone input module, wireless microphone input module, Signal line input module, usb signal input module, Bluetooth signal input module, audio mix signaling module, tonal volume are adjusted Section module, digital power amplifier module, power module and adaptor module, cable microphone input module, wireless microphone input module, letter Number circuit input module and usb signal input module are connected respectively with audio mix signaling module, audio mix signaling module and Tonal volume adjustment module connects, and digital power amplifier module is connected respectively with tonal volume adjustment module and power module, power supply mould Block is connected with adaptor module, and the power module includes power management module, storage battery charging module and whole machine supply module. Usb signal input module can read the audio signal in USB flash disk equipment, support the multiple formats such as MP3, WMA, Bluetooth signal input mould Block can be connected transmission audio signal with whole machine by mobile phone or computer, and the charging of storage battery charging module is completed by adapter, power supply Management module carries out intelligent management, and the Baffle Box of Bluetooth adopts digital power amplifier module, and with sense of hearing is good, efficiency high, working stability can By the characteristics of.

Used as further improvement of the utility model, the power management module includes charging circuit module, indicating circuit Module and protection circuit module, the charging circuit module includes charging IC modules, and the indicating circuit module includes vibration electricity Road module and comparison circuit module.Adapter is equipped with outside cabinet, storage battery charges and completed by adapter.Adapter is not powered When, storage battery does not charge.Wherein storage battery adopts constant-current charge 29.6V/800mA.

Used as further improvement of the utility model, the charging IC modules include voltage regulator L200C, the comparison Circuit module include comparator A1, comparator A2, comparator A3 and comparator A4, the oscillating circuit module include inductance L1, Electric capacity C1, audion T1, diode D1, diode D2, resistance R1, resistance R2 and resistance R3, the base stage of audion T1 respectively with Resistance R1 and resistance R2 connects, and the emitter stage of audion T1 is connected with resistance R3, resistance R3 ground connection, the positive pole difference of diode D1 Be connected with the positive pole and resistance R1 of electric capacity C1, the negative pole of diode D1 respectively with resistance R2, the emitter stage of audion T1, diode The negative pole of D2, one end connection of inductance L1, the other end of inductance L1 is connected with the positive pole of diode D2, voltage regulator L200C 1 interface be connected with comparator A1 and comparator A2 respectively, the outfan of comparator A1 and the outfan of comparator A3 connect respectively It is connected to 2 interfaces and the first charging indicator light of the first charging indicator light D3 and the second charging indicator light D4, voltage regulator L200C D3 connects, and 3 interfaces of voltage regulator L200C are connected respectively with the outfan in the same direction and inverse output terminal of comparator A2, compare The input in the same direction of device A3 is connected with the inverse output terminal of comparator A4, and the outfan of comparator A4 is connected with diode D5, and two The negative pole of pole pipe D5 is connected with audion T2, the grounded emitter of audion T2, the colelctor electrode of audion T2 respectively with inductance L1 Connect with the positive pole of diode D2.

Storage battery both end voltage when detecting that storage battery works independently with comparison circuit indicates, low mistake+22V then charging indicator lights Light, otherwise charging indicator light goes out.Storage battery charging indication is also to be completed by hardware, employs oscillating circuit and compares electric Road, comparison circuit is mainly used to detect the voltage difference at charging IC current-limiting resistances two ends, when just starting to charge up, due to using permanent Stream 30V/800mA charges, and charging IC current-limiting resistance both end voltages are about 0.8V, and comparison circuit gives oscillating circuit one high electricity It is flat.Then oscillating circuit work, charging indicator light flashes, and display frequency is about 1S；When storage battery is full of 95%, difference is substantially 0, comparison circuit gives oscillating circuit one low level, then oscillating circuit quits work, and charging indicator light length is bright.

Used as further improvement of the utility model, the protection circuit module includes relay K1, relay K1 difference It is connected with charging IC modules and adaptor module.When bottle works independently, when voltage is down to below 18V, relay disconnects, storage battery Stop being worked to whole machine.The main purpose of do so is protection storage battery, because if when storage battery electricity exhausts, easily damaging, is led Cause permanent not chargeable.When external ac power source is powered, now storage battery is not involved in work, is preferentially powered using adapter.

Used as further improvement of the utility model, the digital power amplifier module adopts TDA7498E type audio frequency amplifiers.

In sum, the utility model has the advantages that having built-in power to realize that power supply, audio signal input pattern are more.

Description of the drawings

Come that the utility model is described in more detail with reference to the accompanying drawings and detailed description.

Fig. 1 is module frame figure of the present utility model.

Fig. 2 is the schematic diagram of power management module of the present utility model.

Specific embodiment

By shown in Fig. 1 to Fig. 2, this utility model includes cable microphone input module 1, wireless microphone input module 2, signal Circuit input module 3, usb signal input module 4, Bluetooth signal input module 5, audio mix signaling module 6, tonal volume are adjusted Section module 7, digital power amplifier module 8, power module 9 and adaptor module 10, the input of cable microphone input module 1, wireless microphone Module 2, signal line input module 3 and usb signal input module 4 are connected respectively with audio mix signaling module 6, audio mix Signaling module 6 and tonal volume adjustment module 7 connect, digital power amplifier module 8 respectively with tonal volume adjustment module 7 and power supply mould Block 9 connects, and power module 9 is connected with adaptor module 10, and the power module 9 charges including power management module 11, storage battery Module 12 and whole machine supply module 13, the power management module 11 includes charging circuit module, indicating circuit module and protection Circuit module, the charging circuit module includes charging IC modules 14, and the indicating circuit module includes oscillating circuit module 15 With comparison circuit module 16, the charging IC modules 14 include voltage regulator L200C, and the comparison circuit module 16 includes Comparator A1, comparator A2, comparator A3 and comparator A4, the oscillating circuit module 15 includes inductance L1, electric capacity C1, three poles Pipe T1, diode D1, diode D2, resistance R1, resistance R2 and resistance R3, the base stage of audion T1 respectively with resistance R1 and resistance R2 connects, and the emitter stage of audion T1 is connected with resistance R3, resistance R3 ground connection, and the positive pole of diode D1 is respectively with electric capacity C1 just Pole and resistance R1 connect, the negative pole of diode D1 respectively with resistance R2, the emitter stage of audion T1, the negative pole of diode D2, electricity One end connection of sense L1, the other end of inductance L1 is connected with the positive pole of diode D2, the 1 interface difference of voltage regulator L200C It is connected with comparator A1 and comparator A2, the outfan of comparator A1 and the outfan of comparator A3 are connected to the first charging 2 interfaces of display lamp D3 and the second charging indicator light D4, voltage regulator L200C are connected with the first charging indicator light D3, voltage 3 interfaces of actuator L200C are connected respectively with the outfan in the same direction and inverse output terminal of comparator A2, and comparator A3's is in the same direction defeated Enter end to be connected with the inverse output terminal of comparator A4, the outfan of comparator A4 is connected with diode D5, the negative pole of diode D5 It is connected with audion T2, the grounded emitter of audion T2, the colelctor electrode of audion T2 is respectively with inductance L1's and diode D2 Positive pole connect, the protection circuit module include relay K1, relay K1 respectively with charging IC modules 14 and adaptor module 10 connections, the digital power amplifier module 8 adopts TDA7498E type audio frequency amplifiers.

Usb signal input module 4 can read the audio signal in USB flash disk equipment, support the multiple formats such as MP3, WMA, bluetooth Signal input module 5 can be connected by mobile phone or computer with whole machine transmits audio signal, and the charging of storage battery charging module 12 is by fitting Orchestration is completed, and power management module 11 carries out intelligent management, the Baffle Box of Bluetooth adopt digital power amplifier module 8, with sense of hearing it is good, effect Rate is high, it is stable and reliable in work the characteristics of.Adapter is equipped with outside cabinet, storage battery charges and completed by adapter.Adapter does not have During energization, storage battery does not charge.Wherein storage battery adopts constant-current charge 29.6V/800Ma.With the independent work of comparison circuit detection storage battery Storage battery both end voltage when making indicates that low mistake+22V then light by charging indicator light, and otherwise charging indicator light goes out.Storage battery charges and indicates Circuit is also to be completed by hardware, employs oscillating circuit and comparison circuit, and comparison circuit is mainly used to detect charging IC current limlitings electricity The voltage difference at resistance two ends, when just starting to charge up, due to being charged using constant current 30V/800mA, charging IC current-limiting resistances two ends Voltage is about 0.8V, and comparison circuit gives oscillating circuit one high level.Then oscillating circuit work, charging indicator light flashes, and shows Frequency is about 1S；When storage battery is full of 95%, difference is substantially 0, and comparison circuit gives oscillating circuit one low level, then vibrate Circuit quits work, and charging indicator light length is bright.

Claims (5)

1. a kind of Baffle Box of Bluetooth of built-in power, it is characterised in that：Including cable microphone input module, wireless microphone input mould Block, signal line input module, usb signal input module, Bluetooth signal input module, audio mix signaling module, tonal sound Amount adjustment module, digital power amplifier module, power module and adaptor module, cable microphone input module, wireless microphone input mould Block, signal line input module and usb signal input module are connected respectively with audio mix signaling module, audio mix signal mode Block and tonal volume adjustment module connect, and digital power amplifier module is connected respectively with tonal volume adjustment module and power module, electricity Source module is connected with adaptor module, and the power module is powered mould including power management module, storage battery charging module and whole machine Block.

2. the Baffle Box of Bluetooth of the built-in power as described in claim 1, it is characterised in that：The power management module includes charging Circuit module, indicating circuit module and protection circuit module, the charging circuit module includes charging IC modules, the instruction electricity Road module includes oscillating circuit module and comparison circuit module.

3. the Baffle Box of Bluetooth of the built-in power as described in claim 2, it is characterised in that：The charging IC modules are adjusted including voltage Section device L200C, the comparison circuit module includes comparator A1, comparator A2, comparator A3 and comparator A4, the vibration electricity Road module includes inductance L1, electric capacity C1, audion T1, diode D1, diode D2, resistance R1, resistance R2 and resistance R3, three poles The base stage of pipe T1 is connected respectively with resistance R1 and resistance R2, and the emitter stage of audion T1 is connected with resistance R3, resistance R3 ground connection, and two The positive pole of pole pipe D1 is connected respectively with the positive pole and resistance R1 of electric capacity C1, the negative pole of diode D1 respectively with resistance R2, audion The emitter stage of T1, the negative pole of diode D2, one end connection of inductance L1, the other end of inductance L1 connects with the positive pole of diode D2 Connect, 1 interface of voltage regulator L200C is connected respectively with comparator A1 and comparator A2, the outfan of comparator A1 and compare The outfan of device A3 is connected to the first charging indicator light D3 and the second charging indicator light D4, and the 2 of voltage regulator L200C connects Mouthful be connected with the first charging indicator light D3,3 interfaces of voltage regulator L200C respectively with the outfan in the same direction of comparator A2 and instead To outfan connection, the input in the same direction of comparator A3 is connected with the inverse output terminal of comparator A4, the outfan of comparator A4 Diode D5 is connected with, the negative pole of diode D5 is connected with audion T2, the grounded emitter of audion T2, the collection of audion T2 Electrode is connected respectively with the positive pole of inductance L1 and diode D2.

4. the Baffle Box of Bluetooth of the built-in power as described in claim 2, it is characterised in that：The protection circuit module includes relay Device K1, relay K1 are connected respectively with charging IC modules and adaptor module.

5. the Baffle Box of Bluetooth of the built-in power as described in claim 1, it is characterised in that：The digital power amplifier module is adopted TDA7498E type audio frequency amplifiers.