CN205378201U - Dual track bluetooth power amplifier earphone - Google Patents
Dual track bluetooth power amplifier earphone Download PDFInfo
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- CN205378201U CN205378201U CN201521057889.3U CN201521057889U CN205378201U CN 205378201 U CN205378201 U CN 205378201U CN 201521057889 U CN201521057889 U CN 201521057889U CN 205378201 U CN205378201 U CN 205378201U
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- 230000009977 dual effect Effects 0.000 title claims abstract description 10
- 230000003321 amplification Effects 0.000 claims abstract description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 65
- 208000009205 Tinnitus Diseases 0.000 abstract description 6
- 230000005236 sound signal Effects 0.000 abstract description 6
- 231100000886 tinnitus Toxicity 0.000 abstract description 6
- 206010014020 Ear pain Diseases 0.000 abstract description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a dual track bluetooth power amplifier earphone, tone quality is effectual, alleviates the puzzlement that the user used ear pain and tinnitus for a long time. The technical scheme of its solution is, including earphone lead wire and earphone main part, the one end of earphone lead wire is provided with the plug, and the other end of earphone lead wire is connected in the earphone main part, be provided with bluetooth power amplifier control circuit in the earphone main part. The utility model discloses simple structure opens the bluetooth of cell -phone or computer, be connected to this equipment through the search on, then click a music, send bluetooth headset to the audio signal of cell -phone or computer through the mode of bluetooth transmittal on, amplify through the power amplification module, amplify audio signal, through the speaker alright in order to hear sound, tone quality is effectual, lightens the puzzlement that the user used the painful and tinnitus of ear for a long time.
Description
Technical field
This utility model relates to ear speaker device technical field, particularly a kind of double track bluetooth power amplifier earphone.
Background technology
Bluetooth earphone refers to embedded with bluetooth chip, connect with bluetooth and replace the stereo set that traditional wire connects, by being connected with mobile phone or the bluetooth playback equipment such as panel computer and notebook, reach conveniently purpose, at present, bluetooth earphone is based on portable, profile is general comparatively small and exquisite portable, bluetooth earphone technology is also paid attention to by consumer gradually by feat of its feature facilitating human nature and receives, common bluetooth earphone mostly is monophonic audio amplifier on the market, also emerge the multi-sound-channel earphone that some tonequality are excellent simultaneously, and generally earphone use for a long time can bring the puzzlement of ear pain and tinnitus to user.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the purpose of this utility model is in that to provide a kind of double track bluetooth power amplifier earphone, and acoustical quality is good, alleviates user and uses the puzzlement of ear pain and tinnitus for a long time.
nullThe technical scheme of its solution is，Including earphone wire and headset main body，One end of described earphone wire is provided with plug，The other end of earphone wire is connected in headset main body，Bluetooth power amplification control circuit it is provided with in described headset main body，Described bluetooth power amplification control circuit，Including bluetooth module、Dual power supply module、Power amplifier module、Loudspeaker module and key-press module，Described bluetooth module is connected with power amplifier module，Bluetooth module is connected with key-press module，Power amplifier module is connected with loudspeaker module，Dual power supply module and bluetooth module、Power amplifier module、Loudspeaker module and key-press module connect and provide electric energy，Described bluetooth module、Power amplifier module、Loudspeaker module and key-press module，Including chip U1、Volume adds button S1、Volume down button S2、Next button S3、Upper one first button S4、Pause key S5、Chip U4、Operational amplifier U5、Operational amplifier U6 and speaker P1，2 pins of described chip U1 and 3 pins connect 3.3V power supply through light emitting diode D1 and light emitting diode D2，14 pins of chip U1 and 15 pins of chip U1 all connect 3.3V power supply through resistance R4，The 17 pin ground connection GND of chip U1，33 pins of chip U1、32 pins、31 pins、30 pins and 28 pins add button S1 through volume respectively、Volume down button S2、Next button S3、Upper one first button S4 and Pause key S5 is connected with one end of resistance R3，Another termination 3.3V power supply of resistance R3，The 43 pin ground connection GND of chip U1，39 pins of chip U1 and 40 pins are connected through one end of electric capacity C11 and electric capacity C12 and resistance R5 and one end of resistance R6 respectively，The other end of resistance R5 and the other end of resistance R6 are connected with 2 pins and 3 pins of chip U4，2 pins of chip U4 are connected through the positive pole of resistance R7 with electrochemical capacitor C13，The negative pole of electrochemical capacitor C13 is connected with 1 pin of audio power amplifier circuit RP1，1 pin of chip U4 is connected with the negative pole of electrochemical capacitor C13，3 pins of chip U4 are through resistance R8 ground connection GND，4 pins of chip U4 connect V-power supply，5 pins of chip U4 are through resistance R12 ground connection GND，5 pins of chip U4 and 6 pins are connected through the negative pole of resistance R10 and resistance R9 and electrochemical capacitor C15 and the negative pole of electrochemical capacitor C14 respectively，The positive pole of electrochemical capacitor C15 and the positive pole of electrochemical capacitor C14 respectively with 42 pins of chip U1 and 41 pins，6 pins of chip U4 are connected through the positive pole of resistance R11 with electrochemical capacitor C16，8 pins of chip U1 connect V+ power supply，7 pins of chip U1 are connected with the positive pole of electrochemical capacitor C16，The negative pole of electrochemical capacitor C16 is connected with 6 pins of audio power amplifier circuit RP1，3 pins of audio power amplifier circuit RP1 and 4 pins all ground connection GND，2 pins of audio power amplifier circuit RP1 and 5 pins are connected through the in-phase input end of electrochemical capacitor C26 and electrochemical capacitor C21 and operational amplifier U5 and the in-phase input end of operational amplifier U6 respectively，The in-phase input end of operational amplifier U5 is successively through resistance R16 and resistance R19 ground connection GND，5 pins of operational amplifier U5 meet power supply VCC，5 pins of operational amplifier U5 are successively through resistance R15 and electrochemical capacitor C22 ground connection GND，The inverting input of operational amplifier U5 is successively through resistance R18 and electrochemical capacitor C23 ground connection GND，The inverting input of operational amplifier U5 is through the outfan of resistance R17 Yu operational amplifier U5，The outfan of operational amplifier U5 is connected through 1 pin of electrochemical capacitor C19 and speaker P1，1 pin of speaker P1 is successively through resistance R20 and electric capacity C20 ground connection GND，2 pins of speaker P1 and 3 pins all ground connection GND，The in-phase input end of operational amplifier U6 is through resistance R21 and resistance R22 ground connection GND，5 pins of operational amplifier U6 meet power supply VCC，5 pins of operational amplifier U6 are successively through resistance R25 and electrochemical capacitor C25 ground connection GND，The inverting input of operational amplifier U6 is successively through resistance R26 and electrochemical capacitor C27 ground connection GND，The inverting input of operational amplifier U6 is connected through the outfan of resistance R23 with operational amplifier U6，The outfan of operational amplifier U6 is connected through 4 pins of electrochemical capacitor C24 and speaker P1，4 pins of speaker P1 are successively through resistance R24 and electrochemical capacitor C28 ground connection GND.
This utility model simple in construction, the bluetooth of mobile phone or computer is opened, it is connected on this equipment by searching for, then click on a piece of music, the audio signal of mobile phone or computer is sent on bluetooth earphone by the mode of Bluetooth transmission, amplify through power amplifier module, audio signal is amplified, acoustical quality is good, just can hear sound through speaker, alleviates user and uses the puzzlement of ear pain and tinnitus for a long time.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of bluetooth module of the present utility model and key-press module；
Fig. 2 is the preamplifying circuit connection figure of power amplifier module of the present utility model；
Fig. 3 is the rear class amplifying circuit connection figure of power amplifier module of the present utility model；
Fig. 4 is bluetooth module power supply circuits connection figure of the present utility model；
Fig. 5 is dual power supply module of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
nullIn conjunction with shown in Fig. 1 to Fig. 5，A kind of double track bluetooth power amplifier earphone of the present utility model，Including earphone wire and headset main body，One end of described earphone wire is provided with plug，The other end of earphone wire is connected in headset main body，Bluetooth power amplification control circuit it is provided with in described headset main body，Described bluetooth power amplification control circuit，Including bluetooth module、Dual power supply module、Power amplifier module、Loudspeaker module and key-press module，Described bluetooth module is connected with power amplifier module，Bluetooth module is connected with key-press module，Power amplifier module is connected with loudspeaker module，Dual power supply module and bluetooth module、Power amplifier module、Loudspeaker module and key-press module connect and provide electric energy，Described bluetooth module、Power amplifier module、Loudspeaker module and key-press module，Including chip U1、Volume adds button S1、Volume down button S2、Next button S3、Upper one first button S4、Pause key S5、Chip U4、Operational amplifier U5、Operational amplifier U6 and speaker P1，2 pins of described chip U1 and 3 pins connect 3.3V power supply through light emitting diode D1 and light emitting diode D2，14 pins of chip U1 and 15 pins of chip U1 all connect 3.3V power supply through resistance R4，The 17 pin ground connection GND of chip U1，33 pins of chip U1、32 pins、31 pins、30 pins and 28 pins add button S1 through volume respectively、Volume down button S2、Next button S3、Upper one first button S4 and Pause key S5 is connected with one end of resistance R3，Another termination 3.3V power supply of resistance R3，The 43 pin ground connection GND of chip U1，39 pins of chip U1 and 40 pins are connected through one end of electric capacity C11 and electric capacity C12 and resistance R5 and one end of resistance R6 respectively，The other end of resistance R5 and the other end of resistance R6 are connected with 2 pins and 3 pins of chip U4，2 pins of chip U4 are connected through the positive pole of resistance R7 with electrochemical capacitor C13，The negative pole of electrochemical capacitor C13 is connected with 1 pin of audio power amplifier circuit RP1，1 pin of chip U4 is connected with the negative pole of electrochemical capacitor C13，3 pins of chip U4 are through resistance R8 ground connection GND，4 pins of chip U4 connect V-power supply，5 pins of chip U4 are through resistance R12 ground connection GND，5 pins of chip U4 and 6 pins are connected through the negative pole of resistance R10 and resistance R9 and electrochemical capacitor C15 and the negative pole of electrochemical capacitor C14 respectively，The positive pole of electrochemical capacitor C15 and the positive pole of electrochemical capacitor C14 respectively with 42 pins of chip U1 and 41 pins，6 pins of chip U4 are connected through the positive pole of resistance R11 with electrochemical capacitor C16，8 pins of chip U1 connect V+ power supply，7 pins of chip U1 are connected with the positive pole of electrochemical capacitor C16，The negative pole of electrochemical capacitor C16 is connected with 6 pins of audio power amplifier circuit RP1，3 pins of audio power amplifier circuit RP1 and 4 pins all ground connection GND，2 pins of audio power amplifier circuit RP1 and 5 pins are connected through the in-phase input end of electrochemical capacitor C26 and electrochemical capacitor C21 and operational amplifier U5 and the in-phase input end of operational amplifier U6 respectively，The in-phase input end of operational amplifier U5 is successively through resistance R16 and resistance R19 ground connection GND，5 pins of operational amplifier U5 meet power supply VCC，5 pins of operational amplifier U5 are successively through resistance R15 and electrochemical capacitor C22 ground connection GND，The inverting input of operational amplifier U5 is successively through resistance R18 and electrochemical capacitor C23 ground connection GND，The inverting input of operational amplifier U5 is through the outfan of resistance R17 Yu operational amplifier U5，The outfan of operational amplifier U5 is connected through 1 pin of electrochemical capacitor C19 and speaker P1，1 pin of speaker P1 is successively through resistance R20 and electric capacity C20 ground connection GND，2 pins of speaker P1 and 3 pins all ground connection GND，The in-phase input end of operational amplifier U6 is through resistance R21 and resistance R22 ground connection GND，5 pins of operational amplifier U6 meet power supply VCC，5 pins of operational amplifier U6 are successively through resistance R25 and electrochemical capacitor C25 ground connection GND，The inverting input of operational amplifier U6 is successively through resistance R26 and electrochemical capacitor C27 ground connection GND，The inverting input of operational amplifier U6 is connected through the outfan of resistance R23 with operational amplifier U6，The outfan of operational amplifier U6 is connected through 4 pins of electrochemical capacitor C24 and speaker P1，4 pins of speaker P1 are successively through resistance R24 and electrochemical capacitor C28 ground connection GND.
nullDouble power supply circuit，Including power input jack P3、Circuit of three-terminal voltage-stabilizing integrated U2 and circuit of three-terminal voltage-stabilizing integrated U3，3 pins of described power input jack P3 are connected with the positive pole of the negative pole of diode D3 and diode D4，1 pin of power input jack P3 is connected with the negative pole of the positive pole of diode D5 and diode D6，The negative pole of diode D5 and the negative pole of diode D4 are all connected with the input of circuit of three-terminal voltage-stabilizing integrated U2，The positive pole of diode D3 and the positive pole of diode D6 are all connected with the input of circuit of three-terminal voltage-stabilizing integrated U3，The input of circuit of three-terminal voltage-stabilizing integrated U2 is through electrochemical capacitor C3 ground connection GND，The input of circuit of three-terminal voltage-stabilizing integrated U2 is through electric capacity C7 ground connection GND，The earth terminal ground connection GND of circuit of three-terminal voltage-stabilizing integrated U2，The outfan of circuit of three-terminal voltage-stabilizing integrated U2 is through electrochemical capacitor C5 ground connection GND，The outfan of circuit of three-terminal voltage-stabilizing integrated U2 is through electric capacity C9 ground connection GND，The outfan of circuit of three-terminal voltage-stabilizing integrated U2 is successively through resistance R13 and light emitting diode D7 ground connection GND，The outfan out-put supply V+ of circuit of three-terminal voltage-stabilizing integrated U2，The input of circuit of three-terminal voltage-stabilizing integrated U3 is through electrochemical capacitor C4 ground connection GND，The input of circuit of three-terminal voltage-stabilizing integrated U3 is through electric capacity C8 ground connection GND，The earth terminal ground connection GND of circuit of three-terminal voltage-stabilizing integrated U3，The outfan of circuit of three-terminal voltage-stabilizing integrated U3 is through electrochemical capacitor C6 ground connection GND，The outfan of circuit of three-terminal voltage-stabilizing integrated U3 is through electric capacity C10 ground connection GND，The outfan of circuit of three-terminal voltage-stabilizing integrated U3 is successively through light emitting diode D8 and resistance R14 ground connection GND，The outfan out-put supply V-of circuit of three-terminal voltage-stabilizing integrated U3.
Described audio power amplifier circuit RP1 is TDA2030 power amplification circuit.
Described chip U4 is double operational integrated circuit NE5532.
Described chip U1 is CSR1010 low-power consumption, bluetooth module.
Described circuit of three-terminal voltage-stabilizing integrated U2 is LM7812 manostat, and circuit of three-terminal voltage-stabilizing integrated U3 is LM7912 manostat.
This utility model in use,
nullDescribed bluetooth module adopts CSR1010 low-power consumption、Bluetooth chip，This utility model adopts circuit of three-terminal voltage-stabilizing integrated AMS1117 voltage stabilizing to become 3.3V voltage，Stable voltage is provided for Bluetooth chip，Dual power supply module adopts linear transformer、LM7812 manostat and LM7912 manostat，220V alternating current is through transformator transformation、Rectifier bridge rectification、Filter filtering、Manostat voltage stabilizing、Filter filtering，Final output stable+-12V voltage，Power amplifier module adopts two-stage amplifying circuit to be amplified，The preamplifying circuit of power amplifier module adopts double operational integrated circuit NE5532 to be amplified，The rear class amplifying circuit of power amplifier module adopts integrated amplifier circuit TDA2030 to amplify，Then pass through speaker and just can hear sound，Key-press module mainly has five buttons，Respectively volume adds button S1、Volume down button S2、Next button S3、Upper one first button S4 and Pause key S5.
This utility model simple in construction, the bluetooth of mobile phone or computer is opened, it is connected on this equipment by searching for, then click on a piece of music, the audio signal of mobile phone or computer is sent on bluetooth earphone by the mode of Bluetooth transmission, amplify through power amplifier module, audio signal is amplified, acoustical quality is good, just can hear sound through speaker, alleviates user and uses the puzzlement of ear pain and tinnitus for a long time.
Claims (6)
- null1. a double track bluetooth power amplifier earphone，Including earphone wire and headset main body，One end of described earphone wire is provided with plug，The other end of earphone wire is connected in headset main body，Bluetooth power amplification control circuit it is provided with in described headset main body，It is characterized in that，Described bluetooth power amplification control circuit，Including bluetooth module、Dual power supply module、Power amplifier module、Loudspeaker module and key-press module，Described bluetooth module is connected with power amplifier module，Bluetooth module is connected with key-press module，Power amplifier module is connected with loudspeaker module，Dual power supply module and bluetooth module、Power amplifier module、Loudspeaker module and key-press module connect and provide electric energy，Described bluetooth module、Power amplifier module、Loudspeaker module and key-press module，Including chip U1、Volume adds button S1、Volume down button S2、Next button S3、Upper one first button S4、Pause key S5、Chip U4、Operational amplifier U5、Operational amplifier U6 and speaker P1，2 pins of described chip U1 and 3 pins connect 3.3V power supply through light emitting diode D1 and light emitting diode D2，14 pins of chip U1 and 15 pins of chip U1 all connect 3.3V power supply through resistance R4，The 17 pin ground connection GND of chip U1，33 pins of chip U1、32 pins、31 pins、30 pins and 28 pins add button S1 through volume respectively、Volume down button S2、Next button S3、Upper one first button S4 and Pause key S5 is connected with one end of resistance R3，Another termination 3.3V power supply of resistance R3，The 43 pin ground connection GND of chip U1，39 pins of chip U1 and 40 pins are connected through one end of electric capacity C11 and electric capacity C12 and resistance R5 and one end of resistance R6 respectively，The other end of resistance R5 and the other end of resistance R6 are connected with 2 pins and 3 pins of chip U4，2 pins of chip U4 are connected through the positive pole of resistance R7 with electrochemical capacitor C13，The negative pole of electrochemical capacitor C13 is connected with 1 pin of audio power amplifier circuit RP1，1 pin of chip U4 is connected with the negative pole of electrochemical capacitor C13，3 pins of chip U4 are through resistance R8 ground connection GND，4 pins of chip U4 connect V-power supply，5 pins of chip U4 are through resistance R12 ground connection GND，5 pins of chip U4 and 6 pins are connected through the negative pole of resistance R10 and resistance R9 and electrochemical capacitor C15 and the negative pole of electrochemical capacitor C14 respectively，The positive pole of electrochemical capacitor C15 and the positive pole of electrochemical capacitor C14 respectively with 42 pins of chip U1 and 41 pins，6 pins of chip U4 are connected through the positive pole of resistance R11 with electrochemical capacitor C16，8 pins of chip U1 connect V+ power supply，7 pins of chip U1 are connected with the positive pole of electrochemical capacitor C16，The negative pole of electrochemical capacitor C16 is connected with 6 pins of audio power amplifier circuit RP1，3 pins of audio power amplifier circuit RP1 and 4 pins all ground connection GND，2 pins of audio power amplifier circuit RP1 and 5 pins are connected through the in-phase input end of electrochemical capacitor C26 and electrochemical capacitor C21 and operational amplifier U5 and the in-phase input end of operational amplifier U6 respectively，The in-phase input end of operational amplifier U5 is successively through resistance R16 and resistance R19 ground connection GND，5 pins of operational amplifier U5 meet power supply VCC，5 pins of operational amplifier U5 are successively through resistance R15 and electrochemical capacitor C22 ground connection GND，The inverting input of operational amplifier U5 is successively through resistance R18 and electrochemical capacitor C23 ground connection GND，The inverting input of operational amplifier U5 is through the outfan of resistance R17 Yu operational amplifier U5，The outfan of operational amplifier U5 is connected through 1 pin of electrochemical capacitor C19 and speaker P1，1 pin of speaker P1 is successively through resistance R20 and electric capacity C20 ground connection GND，2 pins of speaker P1 and 3 pins all ground connection GND，The in-phase input end of operational amplifier U6 is through resistance R21 and resistance R22 ground connection GND，5 pins of operational amplifier U6 meet power supply VCC，5 pins of operational amplifier U6 are successively through resistance R25 and electrochemical capacitor C25 ground connection GND，The inverting input of operational amplifier U6 is successively through resistance R26 and electrochemical capacitor C27 ground connection GND，The inverting input of operational amplifier U6 is connected through the outfan of resistance R23 with operational amplifier U6，The outfan of operational amplifier U6 is connected through 4 pins of electrochemical capacitor C24 and speaker P1，4 pins of speaker P1 are successively through resistance R24 and electrochemical capacitor C28 ground connection GND.
- null2. a kind of double track bluetooth power amplifier earphone according to claim 1，It is characterized in that，Double power supply circuit，Including power input jack P3、Circuit of three-terminal voltage-stabilizing integrated U2 and circuit of three-terminal voltage-stabilizing integrated U3，3 pins of described power input jack P3 are connected with the positive pole of the negative pole of diode D3 and diode D4，1 pin of power input jack P3 is connected with the negative pole of the positive pole of diode D5 and diode D6，The negative pole of diode D5 and the negative pole of diode D4 are all connected with the input of circuit of three-terminal voltage-stabilizing integrated U2，The positive pole of diode D3 and the positive pole of diode D6 are all connected with the input of circuit of three-terminal voltage-stabilizing integrated U3，The input of circuit of three-terminal voltage-stabilizing integrated U2 is through electrochemical capacitor C3 ground connection GND，The input of circuit of three-terminal voltage-stabilizing integrated U2 is through electric capacity C7 ground connection GND，The earth terminal ground connection GND of circuit of three-terminal voltage-stabilizing integrated U2，The outfan of circuit of three-terminal voltage-stabilizing integrated U2 is through electrochemical capacitor C5 ground connection GND，The outfan of circuit of three-terminal voltage-stabilizing integrated U2 is through electric capacity C9 ground connection GND，The outfan of circuit of three-terminal voltage-stabilizing integrated U2 is successively through resistance R13 and light emitting diode D7 ground connection GND，The outfan out-put supply V+ of circuit of three-terminal voltage-stabilizing integrated U2，The input of circuit of three-terminal voltage-stabilizing integrated U3 is through electrochemical capacitor C4 ground connection GND，The input of circuit of three-terminal voltage-stabilizing integrated U3 is through electric capacity C8 ground connection GND，The earth terminal ground connection GND of circuit of three-terminal voltage-stabilizing integrated U3，The outfan of circuit of three-terminal voltage-stabilizing integrated U3 is through electrochemical capacitor C6 ground connection GND，The outfan of circuit of three-terminal voltage-stabilizing integrated U3 is through electric capacity C10 ground connection GND，The outfan of circuit of three-terminal voltage-stabilizing integrated U3 is successively through light emitting diode D8 and resistance R14 ground connection GND，The outfan out-put supply V-of circuit of three-terminal voltage-stabilizing integrated U3.
- 3. a kind of double track bluetooth power amplifier earphone according to claim 1, it is characterised in that described audio power amplifier circuit RP1 is TDA2030 power amplification circuit.
- 4. a kind of double track bluetooth power amplifier earphone according to claim 1, it is characterised in that described chip U4 is double operational integrated circuit NE5532.
- 5. a kind of double track bluetooth power amplifier earphone according to claim 1, it is characterised in that described chip U1 is CSR1010 low-power consumption, bluetooth module.
- 6. a kind of double track bluetooth power amplifier earphone according to claim 2, it is characterised in that described circuit of three-terminal voltage-stabilizing integrated U2 is LM7812 manostat, and circuit of three-terminal voltage-stabilizing integrated U3 is LM7912 manostat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521057889.3U CN205378201U (en) | 2015-12-18 | 2015-12-18 | Dual track bluetooth power amplifier earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521057889.3U CN205378201U (en) | 2015-12-18 | 2015-12-18 | Dual track bluetooth power amplifier earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205378201U true CN205378201U (en) | 2016-07-06 |
Family
ID=56259091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521057889.3U Expired - Fee Related CN205378201U (en) | 2015-12-18 | 2015-12-18 | Dual track bluetooth power amplifier earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205378201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979786A (en) * | 2017-11-03 | 2018-05-01 | 东莞市美之尊电子科技有限公司 | A kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths |
-
2015
- 2015-12-18 CN CN201521057889.3U patent/CN205378201U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979786A (en) * | 2017-11-03 | 2018-05-01 | 东莞市美之尊电子科技有限公司 | A kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170705 Address after: 523415, No. 60 East Shannon Garden Road, Liaobu Town, Guangdong, Dongguan Patentee after: Dongguan happy Electronic Technology Co., Ltd. Address before: Xingyang City, Henan province 450000 Zhengzhou city saulx do Gaolu Bauhinia Mingyuan 7 Building 2 unit 4 Patentee before: Zhou Peng |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20191218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |