CN210381235U

CN210381235U - Portable live broadcast K song device with Bluetooth function

Info

Publication number: CN210381235U
Application number: CN201920938610.4U
Authority: CN
Inventors: 陈建新
Original assignee: Shenzhen Zhanzhichuang Technology Co ltd
Current assignee: Shenzhen Zhanzhichuang Technology Co ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-04-21
Anticipated expiration: 2029-06-20

Abstract

The utility model relates to a take bluetooth function's portable live broadcast K to song device, including drain pan and face lid, and set up control panel and keypad between drain pan and face lid, wherein the drain pan back sets up the spring clamp, control panel includes lithium cell and circuit board, and the both ends of circuit board set up the data interface that charges respectively, bluetooth microphone, the pickup microphone, record and play earphone hole and monitor earphone hole, the circuit board includes the data circuit that charges, the main control chip, and the bluetooth circuit of being connected with the main control chip electricity respectively, the leading amplifier circuit of MIC, record and play circuit and ear discharge circuit, it can reduce the quantity of data line to cross the bluetooth and connect the cell-phone, and the volume is less, set up the clothing collar clamp simultaneously, make things convenient for the main broadcasting to walk about, be suitable for to carry and do outdoor live broadcast K and song.

Description

Portable live broadcast K song device with Bluetooth function

Technical Field

The utility model belongs to the technical field of K sings equipment, especially, relate to a take bluetooth function's portable live broadcast K to song device.

Background

With the gradual development of smart phones, the field of network live broadcasting singing is widely developed, but a certain difference still exists between a conversation microphone configured on a mobile phone and a professional K-song microphone in terms of sound quality and sound effect, and the requirements on online K-song equipment are higher and higher along with the popularization of mobile phone live broadcasting.

For example, if various karaoke APPs on a mobile phone are recorded only by a microphone of the mobile phone, the recording is often unsatisfactory, so that in order to achieve a better recording effect, a lot of karaoke microphones are also developed in the market, and application number CN201621037242.9, a digital microphone based on the mobile phone APP and capable of adjusting microphone parameters, is to change sound effects by connecting the mobile phone and the microphone to improve recording quality;

the live broadcasting of the mobile phone is already a mainstream in the entertainment field, wherein the live broadcasting of the K song is popular, but the equipment for live broadcasting of the K song is relatively more complete, a general anchor broadcast needs one mobile phone to be used for opening live broadcasting software to carry out video live broadcasting, meanwhile, the mobile phone is connected with the K song microphone, in addition, in order to hear the own singing effect, an earphone needs to be connected for real-time ear return, and even the anchor broadcast with higher requirement needs another mobile phone or a music player to be used as an accompaniment sound source.

But on the market for the online K song equipment of cell-phone on the one hand is bulky, needs the support to support, only is applicable to indoorly, on the other hand need connect two cell-phones and an earphone at least, three data lines promptly, easily pay together, the anchor is inconvenient to walk about.

SUMMERY OF THE UTILITY MODEL

To prior art's not enough, this utility model provides a take portable live broadcast K of bluetooth function to song device connects the quantity that the cell-phone can reduce the data line through the bluetooth to the volume is less, sets up the clothing collar clamp simultaneously, makes things convenient for the anchor to walk about, is suitable for to carry and does outdoor live broadcast K and song.

In order to realize above-mentioned purpose, this utility model provides a take bluetooth function's portable live broadcast K to song device, including drain pan and face lid to and set up control panel and keypad between drain pan and face lid, the drain pan back sets up the spring clamp, the face lid openly set up with keypad assorted hole site, control panel includes lithium cell and circuit board to the both ends of circuit board set up charging data interface, bluetooth microphone, pickup microphone, record and play earphone hole respectively and monitor the earphone hole, and wherein the circuit board includes charging data circuit, main control chip and respectively with the bluetooth circuit of main control chip electricity connection, MIC leading amplifier circuit, record and play circuit and ear discharge circuit.

As the utility model relates to a take bluetooth function's portable live broadcast K to song device's further improvement: the charging data circuit adopts a MINI USB-5PIN interface which is in data communication with the main control chip, and the MINI USB-5PIN interface provides DC5V voltage for the Bluetooth circuit.

As the utility model relates to a take bluetooth function's portable live broadcast K to song device's further improvement: the bluetooth circuit adopts the AB5335B model bluetooth chip of being connected with the bluetooth microphone, and the bluetooth chip sets up the charge management circuit who is connected with the lithium cell.

As the utility model relates to a take bluetooth function's portable live broadcast K to song device's further improvement: the pickup microphone is electrically connected with the main control chip through an MIC (microphone) preamplifier circuit, the MIC preamplifier circuit comprises a voltage stabilizing circuit and a microphone operational amplifier circuit, and the microphone operational amplifier circuit adopts SGM721 type operational amplifier.

As the utility model relates to a take bluetooth function's portable live broadcast K to song device's further improvement: the recording and playing earphone hole is electrically connected with the main control chip through a recording and playing circuit.

As the utility model relates to a take bluetooth function's portable live broadcast K to song device's further improvement: the monitoring earphone hole is electrically connected with the main control chip through an ear discharge circuit, and the ear discharge circuit adopts SGM4917 type operational amplifier.

As the utility model relates to a take bluetooth function's portable live broadcast K to song device's further improvement: the main control chip adopts an AP8224C model DSP.

As the utility model relates to a take bluetooth function's portable live broadcast K to song device's further improvement: the recording and playing earphone hole and the monitoring earphone hole adopt 4PIN3.5mm type earphone seats.

Advantageous effects

The utility model discloses a take bluetooth function's portable live broadcast K to song device, connect external equipment through the bluetooth on the one hand, can avoid numerous data lines and influence the performance of anchor, the charging management circuit that can set up through the bluetooth circuit again simultaneously is used for charging of lithium cell, simplify circuit structure, this live broadcast K of on the other hand song device volume is less, set up the clothing collar clamp, make things convenient for the anchor to walk about, not only confine indoor anchor to, still be suitable for to carry and do outdoor live broadcast K song, need not the support, release both hands, it is interactive at any time.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the exploded structure of the present invention;

FIG. 3 is a flow chart of the control motherboard of the present invention;

FIG. 4 is a circuit diagram of the main control chip of the present invention;

fig. 5 is a circuit diagram of the charging data of the present invention;

fig. 6 is a bluetooth circuit diagram of the present invention;

fig. 7 is a circuit diagram of MIC preamplifier of the present invention;

fig. 8 is a circuit diagram of a recording/reproducing apparatus according to the present invention;

FIG. 9 is a diagram of the ear discharge circuit of the present invention;

in the figure: 1. the mobile phone comprises a bottom shell, a panel, a circuit board, a lithium battery, a key board, a spring clamp, a charging data interface, a Bluetooth microphone, a recording and playing earphone hole, a charging and playing earphone hole, a monitoring earphone hole, a charging and playing earphone hole and a pickup microphone, wherein the bottom shell comprises a bottom shell 2, a panel 3, a circuit board 4, a lithium battery 5, a key board 6, a.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in the figure, a portable live broadcast karaoke device with Bluetooth function comprises a main body shell, a control panel and a key board 5, wherein the control panel and the key board 5 are arranged inside the main body shell, the length of the main body shell is 60-80 mm, the size is small, the portable live broadcast karaoke device is suitable for outdoor live broadcast of a main broadcast, the main body shell is formed by assembling a bottom shell 1 and a face cover 2, a spring clamp 6 is arranged on the back face of the bottom shell 1, the main broadcast is convenient to carry, hole sites matched with the key board 5 are arranged on the front face of the face cover 2 for operation of the main broadcast, two earphone holes, two microphones and a charging data interface 7 are arranged at two ends of the control panel, the two earphone holes are a recording and playing earphone hole 9 and a monitoring earphone hole 10 respectively, the two microphones are a pickup microphone 11 and a Bluetooth microphone 8 respectively, the pickup microphone 11 is arranged at one end of the control panel independently, the charging data, The recording and playing earphone hole 9 and the monitoring earphone hole 10 are arranged at the other end of the control panel, wherein the recording and playing earphone hole 9 and the monitoring earphone hole 10 adopt earphone seats of 4PIN3.5mm models, the key board 5 comprises a switch key, a function key, a sound size adjusting key, an up-down curve adjusting key, and the pickup microphone 11 is provided with a filter screen and filter cotton in order to achieve a better tone quality effect.

Further, control panel comprises circuit board 3 and lithium cell 4, and in order to reduce the volume of this live K song device, the size of a dimension of lithium cell 4 and circuit board 3 is unanimous for lithium cell 4 sets up with the laminating of circuit board 3, and wherein circuit board 3 includes charging data circuit, main control chip and bluetooth circuit, the leading amplifier circuit of MIC, record and playback circuit and the ear amplifier circuit of being connected with main control chip electricity respectively.

Specifically, as shown in fig. 3, the main control chip adopts an AP8224C model DSP, the charging data circuit adopts a MINI USB-5PIN interface, the MINI USB-5PIN interface is connected with the DSP through DP and DM leads for data communication, and the MINI USB-5PIN interface provides DC5V voltage for the bluetooth circuit through VCHG leads, wherein the bluetooth circuit adopts an AB5335B model bluetooth chip, and an attached charging management circuit is provided for charging the lithium battery 4, the charging management circuit includes a first resistor R1 and a first capacitor C1, specifically, the circuit board 3 is provided with MAK holes of two hole sites electrically connected with the lithium battery 4, which is denoted by MAK1 in the figure, the VBAT PIN of the bluetooth chip is directly electrically connected with the hole No. 1 of MAK1, and the hole No. 2 is grounded; when the MINI USB-5PIN interface is connected with an external charger, the charging management circuit directly supplies power to all components of the circuit board, and when the MINI USB-5PIN interface is not connected with the external charger, the lithium battery supplies DC (direct current) 3.7-4.2V voltage to all components of the circuit board; so that the power conversion module is not separately arranged. Wherein through cell-phone bluetooth function and bluetooth chip connection to give DSP with the audio transmission in the cell-phone, with LINER, LINL pin connection in the picture, by bluetooth left channel and bluetooth right channel to left audio input and right audio input.

The pickup microphone 11 is electrically connected with the main control chip through an MIC preamplifier circuit, wherein the MIC preamplifier circuit comprises a voltage stabilizing circuit and a microphone operational amplifier circuit, the microphone operational amplifier circuit adopts an SGM721 model operational amplifier, a power output pin passing through the voltage stabilizing circuit and the DSP jointly provides stable 3.3V voltage with low noise for the operational amplifier, an RC filter circuit is generally used as the voltage stabilizing circuit, and then the signal of the pickup microphone is amplified and transmitted to the DSP.

The recording and playing headphone jack 9 and the monitoring headphone jack 10 are respectively and electrically connected with the DSP through a recording and playing circuit and an ear discharge circuit for outputting input signals processed by the DSP, wherein the ear discharge circuit adopts SGM4917 type operational amplifier.

Specifically, for example, 1: the recording and playing earphone hole 9 is connected with a mobile phone I through a data line, the monitoring earphone hole 10 is connected with an earphone through a data line, the mobile phone I is used for displaying APP of live broadcast or K song, a main broadcast interacts with audiences or sings and records through a pickup microphone 11, and the DSP can be used for processing the singing information of the main broadcast, such as changing the tone color of the main broadcast, switching scenes and the like, the function is common in the market and mature in application and is not described in detail any more, wherein the earphone connected with the monitoring earphone hole 10 mainly plays a role in returning ears and is used for monitoring the singing effect of the main broadcast or the DSP processing effect, and people feel whether the recording effect is achieved;

for example, 2: the anchor is in order to reach higher requirement, except connecting the cell-phone I that is used for live K song APP at record playback earphone hole 9, still through bluetooth circuit connection cell-phone II, and cell-phone II is used for playing the background music of K song, and the anchor combines the background music to record through pickup microphone singing to reach better effect, have the phone to call on by bluetooth microphone 8 when cell-phone II has the call to pass through in addition.

Generally, the live broadcast karaoke device is small in size, and live broadcast karaoke and karaoke can be achieved outdoors by clamping the anchor on collars and pockets through the spring clips 6.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.

Claims

1. The utility model provides a take bluetooth function's portable live broadcast K to song device which characterized in that: including drain pan and face lid to and set up control panel and keypad between drain pan and face lid, the drain pan back sets up the spring clamp, the face lid openly sets up with keypad assorted hole site, control panel includes lithium cell and circuit board to the both ends of circuit board set up charging data interface, bluetooth microphone, pickup microphone, record and play earphone hole respectively and monitor the earphone hole, and wherein the circuit board includes charging data circuit, main control chip and respectively with the bluetooth circuit of main control chip electricity connection, MIC leading amplifier circuit, record and play circuit and ear discharge circuit.

2. The portable live broadcast karaoke device with the Bluetooth function of claim 1, wherein: the charging data circuit adopts a MINI USB-5PIN interface which is in data communication with the main control chip, and the MINI USB-5PIN interface provides DC5V voltage for the Bluetooth circuit.

3. The portable live broadcast karaoke device with the Bluetooth function of claim 2, wherein: the bluetooth circuit adopts the AB5335B model bluetooth chip of being connected with the bluetooth microphone, and the bluetooth chip sets up the charge management circuit who is connected with the lithium cell.

4. The portable live broadcast karaoke device with the Bluetooth function of claim 3, wherein: the pickup microphone is electrically connected with the main control chip through an MIC (microphone) preamplifier circuit, the MIC preamplifier circuit comprises a voltage stabilizing circuit and a microphone operational amplifier circuit, and the microphone operational amplifier circuit adopts SGM721 type operational amplifier.

5. The portable live broadcast karaoke device with the Bluetooth function of claim 4, wherein: the recording and playing earphone hole is electrically connected with the main control chip through a recording and playing circuit.

6. The portable live broadcast karaoke device with the Bluetooth function of claim 5, wherein: the monitoring earphone hole is electrically connected with the main control chip through an ear discharge circuit, and the ear discharge circuit adopts SGM4917 type operational amplifier.

7. The portable live broadcasting karaoke device with the Bluetooth function as claimed in any one of claims 1-6, wherein: the main control chip adopts an AP8224C model DSP.

8. The portable live broadcast karaoke device with the Bluetooth function of claim 7, wherein: the recording and playing earphone hole and the monitoring earphone hole adopt 4PIN3.5mm type earphone seats.