CN206674165U - A kind of portable blue-tooth audio amplifier - Google Patents

A kind of portable blue-tooth audio amplifier Download PDF

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Publication number
CN206674165U
CN206674165U CN201621484422.1U CN201621484422U CN206674165U CN 206674165 U CN206674165 U CN 206674165U CN 201621484422 U CN201621484422 U CN 201621484422U CN 206674165 U CN206674165 U CN 206674165U
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CN
China
Prior art keywords
shell
center line
usb interface
audio
bluetooth
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Active
Application number
CN201621484422.1U
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Chinese (zh)
Inventor
徐振
郑瑞城
卓婧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU LUNTEK TECHNOLOGY Co Ltd
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HANGZHOU LUNTEK TECHNOLOGY Co Ltd
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Priority to CN201621484422.1U priority Critical patent/CN206674165U/en
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Publication of CN206674165U publication Critical patent/CN206674165U/en
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Abstract

The utility model discloses a kind of portable blue-tooth audio amplifier, including shell, control circuit, Bluetooth chip, audio-frequency power amplifier are provided with shell, shell is provided with function button, loudspeaker mounting groove and USB interface mounting groove, and the side wall of shell is further opened with power interface;Loudspeaker is installed on loudspeaker mounting groove, USB interface is installed on USB interface mounting groove, the USB interface is electrically connected with ft connection and with outside electric equipment;Function button, USB interface, power interface, Bluetooth chip and audio-frequency power amplifier are connected with control circuit, loudspeaker connection audio-frequency power amplifier;The model HT6872 of audio-frequency power amplifier.The utility model uses HT6872 audio-frequency power amplifier, has the function that anti-cut pushes up distortion, shell is compact, and built-in function device is few, simple in construction.

Description

A kind of portable blue-tooth audio amplifier
Technical field
It the utility model is related to a kind of audio amplifier, more particularly to a kind of portable blue-tooth audio amplifier.
Background technology
With the improvement of living standards, people also increasingly have the ability to pursue preferable quality of life, but simultaneous The generation of various pressure, everyone has different modes to adjust, wherein it is exactly one of which to listen to music, people can be taken by it Graceful melody is releived the mood of anxiety, therefore can convert audio signals into the sound-box device of voice signal always extensively by big The welcome of family.However, on the market most of audio amplifier be all it is wired be connected with equipment, wiring it is cumbersome, in-convenience in use.
The appearance of wireless technology makes people be freed from cumbersome wiring and installation, and wireless technology has been applied to respectively Individual electronic product, as people's living standard increasingly improves, this product is also popularized.Such as by Bluetooth technology and audio amplifier Bluetooth connection can be carried out with mobile phone or computer etc. with reference to so that audio amplifier, without data wire, and low-profile is easy to carry.
But Baffle Box of Bluetooth on the market has the defects of distortion is big, complicated at present.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of portable blue-tooth audio amplifier, its Can solve the problems, such as that existing Baffle Box of Bluetooth distortion is big, complicated.
The purpose of this utility model is realized using following technical scheme:
A kind of portable blue-tooth audio amplifier, it is characterised in that including shell, control circuit, Bluetooth chip, sound are provided with shell Frequency power amplifier, shell are provided with function button, loudspeaker mounting groove and USB interface mounting groove, and the side wall of shell also opens up There is power interface;Loudspeaker is installed on loudspeaker mounting groove, USB interface is installed on USB interface mounting groove, the USB interface It is electrically connected with ft connection and with outside electric equipment;The function button, USB interface, power interface, Bluetooth chip and audio Power amplifier is connected with control circuit, loudspeaker connection audio-frequency power amplifier;The model of audio-frequency power amplifier HT6872。
Preferably, the model BK3254 of the Bluetooth chip.
Preferably, the quantity of the loudspeaker mounting groove is two, is mounted on raising one's voice on each loudspeaker mounting groove Device.
Preferably, two loudspeaker mounting grooves are symmetrical set with the center line of shell.
Preferably, the quantity of the USB interface is two, and two USB interfaces are set so that the center line of shell is symmetrical Put.
Preferably, the neck for grafting TF card is further opened with shell, the TF card is electrically connected with control circuit.
Preferably, the outer surface of the shell is provided with microphone, and the microphone is electrically connected with control circuit.
Preferably, the outer surface of shell is additionally provided with support.
Compared with prior art, the beneficial effects of the utility model are:
The utility model uses HT6872 audio-frequency power amplifier, has the function that anti-cut pushes up distortion, shell is compact, interior Portion's function element is few, simple in construction.
Brief description of the drawings
Fig. 1 is a kind of schematic front view of portable blue-tooth audio amplifier of the present utility model;
Fig. 2 is a kind of structural representation of portable blue-tooth audio amplifier of the present utility model;
Fig. 3 is a kind of function structure chart of portable blue-tooth audio amplifier of the present utility model.
In figure:1st, shell;2nd, function button;3rd, loudspeaker mounting groove;4th, USB interface mounting groove;5th, microphone;6th, raise one's voice Device.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further:
Referring to Fig. 1 to Fig. 3, the utility model provides a kind of portable blue-tooth audio amplifier, including shell 1, shell 1 can be by one Individual square casing and toroidal shell are integrally formed composition, and toroidal shell can be cut into three parts, and centre is square, and both sides are Semicircle, the toroidal shell have two center lines, it is one long, one it is relatively short, in the length for defining square casing and toroidal shell The vertical center line of line is the first center line, and the shell that square casing is formed after being connected with oval-shaped shell is with the first of the square casing Center line is symmetrical arranged for symmetry axis.It is the second center line to define the square casing center line parallel with the long center line of toroidal shell, second The length of center line is less than the length of the long center line so that whole shell forms the structure of garment-like, novel in appearance.
Control circuit, Bluetooth chip, audio-frequency power amplifier are provided with shell 1, shell 1 is provided with function button 2, raised one's voice Device mounting groove 3 and USB interface mounting groove 4, the side wall of shell 1 are further opened with power interface;It is provided with and raises on loudspeaker mounting groove 3 Sound device 6, USB interface is installed on USB interface mounting groove 4, the USB interface electrically connects with ft connection and with outside electric equipment Connect;Function button 2, USB interface, power interface, Bluetooth chip and the audio-frequency power amplifier are connected with control circuit, are raised Sound device 6 connects audio-frequency power amplifier;The model HT6872 of audio-frequency power amplifier.
Loudspeaker 6 uses Full-frequency trumpet, senior middle school's bass all bands, and three occur frequently color, and sound is mellow and full, and frequency band is wider, and tonequality is pure, So that the pronunciation of Baffle Box of Bluetooth is well, plentiful cleaning, fidelity height are acoustically being felt.In addition, HT6872 is a low EMI, Anti- cutting top distortion, monophonic is exempted to filter D-type audio power amplifier.In 6.5V power supplys, 10%THD+N, 4 Ω loading conditions Under, 4.71W power is exported, high efficiency is maintained in the application of all kinds of voice frequency terminals and the performance of class ab ammplifier is provided.
The model selection of Bluetooth chip is BK3254, and the Bluetooth chip of the model is widely used in Baffle Box of Bluetooth and bluetooth It is a matured product generally used in earphone.
In the utility model, loudspeaker mounting groove 3 is arranged on toroidal shell, and loudspeaker mounting groove 3 could be arranged to Two, the half-circle area of toroidal shell is arranged in, is mounted on loudspeaker on each loudspeaker mounting groove, loudspeaker leads to It is often and circular, so that overall more attractive in appearance neat.Two loudspeaker mounting grooves 3 are set so that the center line of shell 1 is symmetrical Put.Here center line i.e. the first foregoing center line.
The quantity of USB interface is two, and two USB interfaces are symmetrical set with the center line of shell 1.Set two The purpose of USB interface is on the one hand one of USB interface can be utilized to be attached broadcasting audio with outside equipment, another Aspect can be powered by another USB interface to Baffle Box of Bluetooth simultaneously again.Certainly, by power interface and realize to bluetooth The function of audio amplifier power supply, power interface connection is direct current.
Neck (not shown) is further opened with shell 1 provided by the utility model, neck can start the sidepiece in shell 1, The neck is used for grafting TF card, and the TF card for needing exist for grafting has audio, after plugging TF card, can pass through the bluetooth sound Case plays music.And if non-grafting TF card, can be connected by Bluetooth chip outside smart machine, such as mobile phone, reception set Standby audio signal, then by carrying out audio output by loudspeaker after audio-frequency power amplifier progress audio amplification.
Microphone 5 is provided with the outer surface of shell 1, the microphone 5 is electrically connected with control circuit.Microphone 5 can be adopted Collect voice signal, the voice signal gathered is sent to control circuit and handled, then is put by audio-frequency power amplifier Greatly, finally exported by loudspeaker 6, realize the multiple functions of Baffle Box of Bluetooth.On the other hand, the outer surface of shell 1 is additionally provided with support (not shown).Here support is vehicle-mounted bracket, for fixed in compartment so that structure provided by the utility model can be square Just used in car.The one side for setting microphone can be defined as front, set the one side of support to be defined as the back side.
On the shell 1, loudspeaker 6 is arranged in loudspeaker mounting groove 3 using demountable structure, when one of them is raised When sound device 6 damages, can timely it be changed, and the connected mode between loudspeaker 6 and loudspeaker mounting groove 3 can More convenient when changing to be connected using usb interface slot, loudspeaker 6 is arranged on the top of shell 1, and USB interface mounting groove 4 are arranged on the both sides of shell 1 and are installed positioned at the lower section of loudspeaker 6, neck installation and the one of USB interface of grafting TF card The side of groove 4 and overlap, in use, one of USB interface mounting groove 4 can be connected with power supply, Ling Yike With storage devices such as grafting USB flash disks, so that Baffle Box of Bluetooth realizes the effect of vehicle-mounted power amplifier, and in connection, two USB interfaces Mounting groove 4 also mutually will not also be had an impact, and the neck of grafting TF card is overlapped with USB interface mounting groove 4, additionally it is possible to It is effective to save space, because whole Baffle Box of Bluetooth exactly likes face, using overlapping, moreover it is possible to effectively prevent beautiful outline form The destruction of sense.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various Corresponding change and deformation, and all these changes and deformation should all belong to the protection of the utility model claims Within the scope of.

Claims (8)

1. a kind of portable blue-tooth audio amplifier, it is characterised in that including shell, control circuit, Bluetooth chip, audio are provided with shell Power amplifier, shell are provided with function button, loudspeaker mounting groove and USB interface mounting groove, and the side wall of shell is further opened with Power interface;Loudspeaker is installed on loudspeaker mounting groove, USB interface is installed on USB interface mounting groove, the USB interface with Ft connection and with outside electric equipment be electrically connected with;The function button, USB interface, power interface, Bluetooth chip and audio work( Rate amplifier is connected with control circuit, loudspeaker connection audio-frequency power amplifier;The model of audio-frequency power amplifier HT6872;
The shell is integrally formed by square casing and toroidal shell and formed, and the toroidal shell is divided into three parts, and centre is Square, both sides are semicircle;The toroidal shell and square casing are equipped with the first center line and the second center line, wherein square casing The first center line and toroidal shell the first median perpendicular, the second center line of square casing and the first center line of toroidal shell are put down OK;The length of first center line of the toroidal shell is more than the length of the second center line of toroidal shell;In the second of square casing Line is less than the first center line of toroidal shell;
The shell that square casing is formed after being connected with toroidal shell is set by symmetry axis of the first center line of square casing.
2. Baffle Box of Bluetooth as claimed in claim 1, it is characterised in that the model BK3254 of the Bluetooth chip.
3. Baffle Box of Bluetooth as claimed in claim 1, it is characterised in that the quantity of the loudspeaker mounting groove is two, each Loudspeaker is mounted on individual loudspeaker mounting groove.
4. Baffle Box of Bluetooth as claimed in claim 3, it is characterised in that two loudspeaker mounting grooves are with center line of shell or so pair Claim to set.
5. Baffle Box of Bluetooth as claimed in claim 1, it is characterised in that the quantity of the USB interface is two, and this two USB interface is symmetrical set with the center line of shell.
6. Baffle Box of Bluetooth as claimed in claim 1, it is characterised in that the neck for grafting TF card is further opened with shell, The TF card is electrically connected with control circuit.
7. Baffle Box of Bluetooth as claimed in claim 1, it is characterised in that the outer surface of the shell is provided with microphone, the Mike Wind is electrically connected with control circuit.
8. Baffle Box of Bluetooth as claimed in claim 1, it is characterised in that the outer surface of shell is additionally provided with support.
CN201621484422.1U 2016-12-31 2016-12-31 A kind of portable blue-tooth audio amplifier Active CN206674165U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621484422.1U CN206674165U (en) 2016-12-31 2016-12-31 A kind of portable blue-tooth audio amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621484422.1U CN206674165U (en) 2016-12-31 2016-12-31 A kind of portable blue-tooth audio amplifier

Publications (1)

Publication Number Publication Date
CN206674165U true CN206674165U (en) 2017-11-24

Family

ID=60356904

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621484422.1U Active CN206674165U (en) 2016-12-31 2016-12-31 A kind of portable blue-tooth audio amplifier

Country Status (1)

Country Link
CN (1) CN206674165U (en)

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