CN207589106U - A kind of earphone - Google Patents
A kind of earphone Download PDFInfo
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- CN207589106U CN207589106U CN201721457327.7U CN201721457327U CN207589106U CN 207589106 U CN207589106 U CN 207589106U CN 201721457327 U CN201721457327 U CN 201721457327U CN 207589106 U CN207589106 U CN 207589106U
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- earphone
- audio
- chip
- male connector
- load switch
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- 230000005236 sound signal Effects 0.000 claims abstract description 11
- 238000005070 sampling Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001131 transforming Effects 0.000 claims description 2
- 230000004301 light adaptation Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000000875 corresponding Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
Abstract
The utility model belongs to ear phone technology field, provides a kind of earphone, and the earphone is included for the data and male connector of charge transport, audio jack and audio module, speech microphone and loud speaker, wherein：The audio module is connected between the male connector and the loud speaker, and the audio module, which is used to being transferred to the loud speaker after the Audio Signal Processing that accesses the male connector, to be played out；The microphone end of the audio jack is connect with the speech microphone and the audio module；The L channel end and right channel end of the audio jack are connect with the loud speaker, the ground terminal ground connection of the audio jack.By setting male connector and audio jack on same earphone, compatibility of the earphone to distinct interface is realized, it is only necessary to which an earphone can use the electronic equipment of different interfaces to listen to music, easy to use.
Description
Technical field
The utility model belongs to ear phone technology field more particularly to a kind of earphone.
Background technology
At present, the terminal devices such as smart mobile phone are increasingly intended to uniform data interface and audio interface, and use is same
Interface is realized data transmission, power source charges and is listened to music.But still there are the terminal devices such as most smart mobile phone to make in the market
Audio data is exported with 3.5mm audio interface, interface after reunification can not be compatible with existing 3.5mm audio interface, user
Use listened to music with different interface termination equipment when, need that two or more earphone is configured simultaneously, and need
It toggles, which not only adds the consumer cost of user, and causes the wasting of resources, bring great inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of earphones, it is intended to solve data present in traditional technical solution and connect
The problem of interface of mouth and audio interface after reunification can not be compatible with existing 3.5mm audio interface.
A kind of earphone, the earphone are included for the data and male connector of charge transport, audio jack and audio module, voice
Microphone and loud speaker, wherein：The audio module is connected between the male connector and the loud speaker, and the audio module is used
The loud speaker is transferred to after the Audio Signal Processing for accessing the male connector to play out；The microphone of the audio jack
End is connect with the speech microphone and the audio module；The L channel end and right channel end of the audio jack are raised with described
Sound device connects, the ground terminal ground connection of the audio jack.
Further, charging circuit is further included, it is single that the charging circuit includes female seat, charging chip, pressure unit and switch
Member；The switch unit is connect with the male connector, the female seat, the charging chip and the pressure unit, and the switch is single
Member is used to access the charge power supply of the female seat under charging chip control and is transferred to the male connector, to export the sound
The electronic equipment charging of frequency signal；The pressure unit will the charge power supply transformation processing after to the charging chip power with
Maintenance works on.
Further, which is characterized in that the pressure unit include first decompression chip and second decompression chip, described first
The input for being depressured chip terminates the switch unit, and the output of the first decompression chip terminates the charging chip；Described
The input of two decompression chips terminates the switch unit, and the output of the second decompression chip terminates the charging chip.
Further, which is characterized in that the switch unit include the first load switch and the second load switch, described first
The input of load switch terminates the power end of the female seat, and the output of first load switch terminates the of the charging chip
One supply pin；The input of second load switch terminates the output terminal of first load switch, second load switch
Output terminate the male connector, the control terminal of first load switch and the control terminal of the second load switch connect the charging altogether
The control foot of chip.
Further, the common end of the control terminal of the control terminal and the second load switch of first load switch passes through a limit
Leakage resistance and a capacity earth, wherein the resistance and the capacitance series are between the common end and ground.
Further, the charging chip is preferably APPLE_C37A.
Further, the voicefrequency circuit further includes key circuit, and the key circuit is connect with the audio module.
Further, the audio module includes digital analog converter, analog-digital converter and noise reduction processing unit, and the digital-to-analogue turns
Noise reduction process is carried out, then pass through the noise reduction processing unit after the audio signal progress audio frequency process that parallel operation inputs the male connector
It is defeated by the loud speaker to play, the speech microphone is connect with the analog-digital converter, and the analog-digital converter is by institute's predicate
The voice analog signal of sound microphone output is converted to digital signal and is exported by the male connector.
Further, the voicefrequency circuit further includes at least one sampling microphone, the sampling microphone and noise reduction process list
Member connection, the audio signal that noise reduction processing unit is exported according to the environmental noise signal logarithm mode converter that sampling microphone acquires
Carry out noise reduction process.
Further, the male connector is adapted to the Lightning interfaces of I Phone 7 or I Phone 7Plus.
Above-mentioned earphone on same earphone by setting male connector and audio jack, the digital audio and video signals warp of male connector access
The loud speaker is transferred to after the processing of audio module to play out, the analog audio signal of audio jack access can directly pass through
The loud speaker being connect with audio jack plays out, it is achieved thereby that compatibility of the earphone to distinct interface, it is only necessary to an earphone
The electronic equipment of different interfaces can be used to listen to music, it is easy to use.
Description of the drawings
Fig. 1 is the Headphone structure schematic diagram that the utility model preferred embodiment provides；
Fig. 2 is the electrical block diagram of earphone that the utility model preferred embodiment provides
Fig. 3 is the electrical block diagram of earphone that another embodiment of the utility model provides；
Fig. 4 is the structure diagram of charging circuit in earphone shown in FIG. 1
Fig. 5 is the exemplary circuit schematic diagram of earphone shown in FIG. 1；
Fig. 6 is the exemplary circuit schematic diagram of charging circuit in earphone shown in Fig. 2.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Fig. 1 shows the structure diagram for the earphone that the utility model preferred embodiment provides, and for convenience of description, only shows
Part related to the present embodiment is gone out, details are as follows：
As depicted in figs. 1 and 2, a kind of earphone, the earphone include male connector 10, audio jack 20, audio module 30 and raise one's voice
Device 40 and speech microphone 50, wherein, male connector 10 has the comprehensive Lightning for having audio output and power input for being adapted to
The electronic equipment of interface.The microphone end of audio jack 20 is connect with speech microphone 50, the L channel end of audio jack 20 and
Right channel end is connect with loud speaker 40, and the ground terminal ground connection of audio jack 20, audio jack 20 is with having corresponding audio socket
Electronic equipment connection, earphone is allow to be adapted to general audio socket, earphone of the user without buy audio jack 20 again,
Realize that an earphone is mostly used.
As shown in Figure 1 and Figure 4, in the present embodiment, male connector 10 is Lightning plugs, and male connector 10 includes 9 connecting pins
Son is followed successively by GND, D+, D-, DP, LAM POWER, LAM DW, LAM D+, LAM D-, LAM GND, with electronic equipment
The corresponding docking terminal of Lightning interfaces matches.Audio module 30 and loud speaker 40 connect, audio module 30 and male connector
10 connections；Specifically, audio module 30 and LAM PWR, LAM DW, LAM D+, LAM D- and the LAM GND terminals of male connector 10 connect
It connects, for the transmission of the audio signal between earphone and electronic equipment.
At least one sampling microphone 60 is further included as shown in Figure 2 and Figure 4, sampling microphone 60 is connect with audio module 30,
Audio module 30 includes digital analog converter 31, analog-digital converter 32 and noise reduction processing unit 33, and digital analog converter 31 and modulus turn
Parallel operation 32 is connect with male connector 10, and digital analog converter 31 is connect with noise reduction processing unit 33, and analog-digital converter 32 is defeated by male connector 10
The digital audio and video signals gone out are converted to analog signal, and pass through after noise reduction processing unit 33 carries out noise reduction process, export to raising one's voice
Device 40 plays out.Specifically, speech microphone 50 is used for the phonetic entry of electronic equipment, analog-digital converter 32 is by voice Mike
The analog voice signal that wind 50 inputs is converted to digital signal, and pass through male connector 10 and be transferred to electronic equipment；Sample microphone 60
For being sampled to environmental noise, in the present embodiment, sampling microphone 60 is four, respectively microphone before L channel
Microphone after microphone R_FF_MIC and right channel before microphone L_FB_MIC, right channel after L_FF_MIC, L channel
R_FB_MIC, audio module 30 receive the environmental noise signal that sampling microphone 60 exports, and noise reduction processing unit 33 is according to sampling
The environmental noise signal that microphone 60 acquires carries out noise reduction process to the audio signal that audio module 30 inputs, and earphone is made to have master
Dynamic decrease of noise functions.
As shown in figure 4, further, key circuit 70 is further included, key circuit 70 is connect with audio module 30, key circuit
70 add button VOL+ including volume, volume down button VOL-, answer button PHONE_MIC and noise reduction button ANC.Wherein, noise reduction
Button ANC is used to open and close the active noise reduction function of noise reduction processing unit 33, and user can be according to the noise feelings of environment
Condition opens and closes noise reduction processing unit 33.
As shown in figure 3, charging circuit 80 includes female seat 81, charging chip 82, switch unit 83 and pressure unit 84.Male connector
10 connect with charging chip 82, and charging chip 82 and female seat 81 connect, and pressure unit 84 and male connector 10 and charging chip 82 connect,
Switch unit 83 is connected between male connector 10 and female seat 81, and is connect with charging chip 82.
As shown in figure 5, female seat 81 is used for being connect with the charging wire with the charging interface with 81 Corresponding matching of female seat
In the charging of electronic equipment, in the present embodiment, female seat 81 is Lightning sockets, which includes 10 connection terminals
Include POWER, RCP_1, RCP_3, RCP_4, RCP_5, RCP_6, RCP_7, RCP_8, RCP_9, RCP_10 and GND successively,
Middle RCP_1, RCP_3, RCP_4, RCP_5, RCP_6, RCP_7, RCP_8 and RCP_9 are connect with charging chip 82, and POWER connects
Switch unit 83, GND ground connection, RCP_10 connect 3.3V DC voltages by resistance R2.
As shown in figure 5, charging chip 82 is preferably APPLE_C37A, charge control is used for, which to have 3
The third supply voltage of first supply voltage of road supply voltage, respectively 5V, the second supply voltage of 3.3V and 1.8V.Its
In, the first supply voltage is provided by POWER by switch unit 83.Specifically, switch unit 83 includes the first load switch Q2
Input with the second load switch Q5, the first load switch Q2 terminates the power end POWER of female seat 81, the first load switch Q2's
First supply pin of output termination charging chip 82, the first supply voltage is inputted to charging chip 82；Second load switch Q5's
The output terminal of the first load switch Q2 of input termination, the output termination male connector 10 of the second load switch Q5, the first load switch Q2
Control terminal and the control terminal of the second load switch Q5 connect the control foot of charging chip 82 altogether, pass through the control of charging chip 82 first
The break-make of load switch Q2 and the second load switch Q5, and then break-make control is carried out to charging path.First load switch Q2's
The common end of control terminal and the control terminal of the second load switch Q5 is grounded by resistance R1 and capacitance C1, wherein resistance R1 and capacitance
C1 is serially connected between the common end and ground.Second supply voltage and third supply voltage are provided by pressure unit 84, specifically, drop
Unit 84 is pressed to include the first input pin and enabled foot for being depressured the decompression chips of chip U2 and second U3, the first decompression chip U2 to connect
The output terminal of second load switch Q5, the output pin of the first decompression chip U2 connect the second source end of charging chip 82, the first drop
The second load switch Q5 5V voltages exported are converted to 3.3V voltages by pressure chip U2, and the second power supply electricity is provided for charging chip 82
Pressure；The input pin and enabled foot of second decompression chip U3 connect the output terminal of the second load switch Q5, the second decompression chip U3's
Output pin connects the third power end of charging chip 82, and the 5V voltages that the second decompression chip U3 exports the second load switch Q5 are converted
For 1.8V voltages, third supply voltage is provided for charging chip 82.The above is only the preferred embodiment of the present invention and
, be not intended to limit the utility model, it is made within the spirit and principles of the present invention it is any modification, equally replace
It changes and improves, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of earphone, which is characterized in that the earphone includes：Available for data transmission and the male connector of charging, audio jack, sound
Frequency module, speech microphone and loud speaker, wherein：
The audio module is connected between the male connector and the loud speaker, and the audio module is used to access the male connector
Audio Signal Processing after be transferred to the loud speaker and play out；The microphone end of the audio jack and the voice Mike
Wind and audio module connection；The L channel end and right channel end of the audio jack are connect with the loud speaker, the sound
The ground terminal ground connection of frequency plug.
2. earphone as described in claim 1, which is characterized in that further include charging circuit, the charging circuit includes female seat, fills
Electrical chip, pressure unit and switch unit；The switch unit and the male connector, the female seat, the charging chip and described
Pressure unit connects, and the switch unit is used to access charge power supply and the transmission of the female seat under charging chip control
To the male connector, to export the electronic equipment charging of the audio signal；The pressure unit will be at the charge power supply transformation
It powers to maintain to work on to the charging chip after reason.
3. earphone as claimed in claim 2, which is characterized in that the pressure unit includes the first decompression chip and the second decompression
Chip, the input of the first decompression chip terminate the switch unit, are filled described in the output termination of the first decompression chip
Electrical chip；The input of the second decompression chip terminates the switch unit, and described second is depressured described in the output termination of chip
Charging chip.
4. earphone as claimed in claim 2, which is characterized in that the switch unit includes the first load switch and the second load
Switch, the input of first load switch terminate the power end of the female seat, the output termination institute of first load switch
State the first supply pin of charging chip；The input of second load switch terminates the output terminal of first load switch, institute
The output for stating the second load switch terminates the male connector, the control terminal of first load switch and the control of the second load switch
End connects the control foot of the charging chip altogether.
5. earphone as claimed in claim 4, which is characterized in that the control terminal and the second load switch of first load switch
Control terminal common end by a current-limiting resistance and a capacity earth, wherein the current-limiting resistance and the capacitance series are in institute
It states between common end and ground.
6. earphone as claimed in claim 2, which is characterized in that the charging chip is APPLE_C37A.
7. earphone as described in claim 1, which is characterized in that further include key circuit, the key circuit and the audio
Module connects.
8. earphone as described in claim 1, which is characterized in that the audio module includes digital analog converter, analog-digital converter
And noise reduction processing unit, the audio signal that the digital analog converter inputs the male connector are carried out after audio frequency process through the noise reduction
Processing unit carries out noise reduction process, is transmitted further to the loud speaker and plays, the speech microphone connects with the analog-digital converter
It connects, the voice analog signal that the speech microphone exports is converted to digital signal and by the public affairs by the analog-digital converter
Head output.
9. earphone as claimed in claim 8, which is characterized in that further include at least one sampling microphone, the sampling microphone
It is connect with the noise reduction processing unit, the environmental noise signal pair that the noise reduction processing unit is acquired according to the sampling microphone
The audio signal of digital analog converter output carries out noise reduction process.
10. earphone as described in claim 1, which is characterized in that the male connector and I Phone 7 or I Phone 7Plus
Lightning interfaces adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457327.7U CN207589106U (en) | 2017-11-03 | 2017-11-03 | A kind of earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457327.7U CN207589106U (en) | 2017-11-03 | 2017-11-03 | A kind of earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207589106U true CN207589106U (en) | 2018-07-06 |
Family
ID=62730620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721457327.7U Active CN207589106U (en) | 2017-11-03 | 2017-11-03 | A kind of earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207589106U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109144933A (en) * | 2018-08-15 | 2019-01-04 | 北京小米移动软件有限公司 | USB Type-C interface circuit and electronic equipment |
-
2017
- 2017-11-03 CN CN201721457327.7U patent/CN207589106U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109144933A (en) * | 2018-08-15 | 2019-01-04 | 北京小米移动软件有限公司 | USB Type-C interface circuit and electronic equipment |
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