CN206136244U - 2. 4G wireless stereo set that encircles - Google Patents
2. 4G wireless stereo set that encircles Download PDFInfo
- Publication number
- CN206136244U CN206136244U CN201621041133.4U CN201621041133U CN206136244U CN 206136244 U CN206136244 U CN 206136244U CN 201621041133 U CN201621041133 U CN 201621041133U CN 206136244 U CN206136244 U CN 206136244U
- Authority
- CN
- China
- Prior art keywords
- electric capacity
- feet
- resistance
- electrically connected
- digital power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Amplifiers (AREA)
Abstract
The utility model discloses a 2.4G wireless stereo set that encircles, including mains operated module, binding post J1 and electrical property 2.4G wireless receiving module, DA conversion module and digital power amplification module in proper order to mains operated module and digital power amplification module electric connection, the utility model discloses a 2.4G the advantage of wireless surround speaker: 1, compare with traditional surround speaker, have the wiring and simply, need not the access audio input line, 2, the surround speaker is from taking the power amplifier, and it increases extra consumption and heat dissipation again to need not the host computer, can let system's work more reliable, 3, adopt digital power amplifier, greatly improved efficiency, more energy -conserving and environmental protection, stability has also obtained very big improvement.
Description
Technical field
This utility model belongs to sound technique field, more particularly to a kind of 2.4G Wireless surroundings sound equipment.
Background technology
The surround speaker of prior art adopts two ways：1st, using passive loudspeaker box mode.This mode has individual obvious
Defect, power amplifier and audio amplifier distance is remote, audio amplifier line length and draws far, and power attenuation is big, after line breakage, due to being that power output is easy
Potential safety hazard is brought, is connected up certainly also unsightly；2nd, using active audio amplifier mode, take around source of sound, this mode from main frame
There is an obvious problem, be input into source of sound line length, be readily incorporated noise, so as to affect tonequality, while cloth line length increased construction hardly possible
Degree, also have impact on attractive in appearance.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of 2.4G Wireless surroundings sound equipment,
It can solve the technical problem of cloth line length.
The purpose of this utility model employs the following technical solutions realization：
A kind of 2.4G Wireless surroundings sound equipment, including power supply module, binding post J1 and successively electrical 2.4G wirelessly connects
Module, D/A modular converters and digital power amplifier module are received, and power supply module electrically connects with digital power amplification module
Connect；
The power supply module is electrically connected with 14 feet of binding post J1, and the power supply module and digital power
The 12 feet electrical connection of amplification module, 21 feet of binding post J1 electrically connect with one end of resistance R55, the other end of resistance R55 and
The positive pole electrical connection of diode D8, the minus earth of diode D8,23 feet and one end of resistance L1B of binding post J1 are electrically connected
Connect, the other end of resistance L1B is electrically connected with a 3.3V power ends, 24 feet and the 2.4G wireless receiving modules of binding post J1 are electrically connected
Connect；
1 foot, 2 feet, 3 feet and 4 feet of the D/A modular converters, 19 feet, 17 feet, 16 feet and 20 respectively with binding post J1
Foot correspondence is electrically connected, and one end of electric capacity C67 and one end of electric capacity C71 electrically connect with 5 feet of D/A modular converters, electric capacity C67's
The other end of the other end and electric capacity C71 is grounded, and one end of electric capacity C69 and one end of electric capacity C68 are with the 6 of D/A modular converters
Foot is electrically connected, and the other end of electric capacity C69 and the other end of electric capacity C68 are grounded, 7 feet of D/A modular converters and the one of electric capacity C65
End electrical connection, the other end of electric capacity C65 is electrically connected with one end of one end of resistance R61 and resistance R62, and resistance R61's is another
End is electrically connected with one end of electric capacity C66 and one end of resistance R60, and the other end of electric capacity C66 and the other end of resistance R62 connect
Ground, the 8 feet ground connection of D/A modular converters, one end of electric capacity C62, one end of one end of electric capacity C61 and resistance R52 and D/A moduluss of conversion
The 9 feet electrical connection of block, the other end of electric capacity C62 and the other end of electric capacity C61 are grounded, the other end of capacitance group R52 and
3.3V power ends are electrically connected, and 10 feet of D/A modular converters electrically connect with one end of electric capacity C64, one end of resistance R53 and resistance
One end of R59 electrically connects with the other end of electric capacity C64, and one end of electric capacity C63 and one end of resistance R54 are with resistance R53's
The other end is electrically connected, and the other end of electric capacity C63 and the other end of resistance R59 are grounded, the other end and resistance R60 of resistance R54
The other end electrically connect with the other end of resistance R29；
The 1 foot ground connection of the digital power amplification module, 2 feet and 3 feet of digital power amplification module are with resistance R10's
One end electrically connects, and the other end of resistance R10 is electrically connected with a 22V power ends, 4 feet and the electric capacity C21 of digital power amplification module
One end electrical connection, the other end of electric capacity C21 electrically connects with one end of resistance R14,5 feet of digital power amplification module and electric capacity
One end electrical connection of C22, the other end of electric capacity C22 is electrically connected with one end of resistance R17, the other end and resistance R17 of resistance R14
The other end be grounded, 6 feet and 7 feet of digital power amplification module are electrically connected with one end of electric capacity C23, the one of electric capacity C23
End electrically connects with one end of resistance R24, the other end of resistance R24 and the other end of resistance R25 with digital power amplification module
The electrical connection of 8 feet, the other end of electric capacity C23 and the other end of resistance R25 be grounded, the 9 feet ground connection of digital power amplification module,
10 feet of digital power amplification module are electrically connected with one end of electric capacity C35, and the other end of electric capacity C35 is electric with one end of resistance R29
Connection, one end of resistance R31 and one end of electric capacity C40 electrically connects with the other end of resistance R29, the other end of resistance R31 with
The other end of electric capacity C40 is grounded, and 11 feet of digital power amplification module pass sequentially through electric capacity C38 and resistance R30 ground connection, electric capacity
One end of C44 and one end of resistance R33 electrically connect with 12 feet of digital power amplification module, the other end and electricity of electric capacity C44
The other end of resistance R33 is grounded, and 13 feet of digital power amplification module, 14 feet and 15 feet are grounded, and digital power amplifies mould
16 feet of block pass sequentially through resistance R36 and electric capacity C51 ground connection；17 feet of digital power amplification module, 18 feet and 19 feet are with one
22V power ends are electrically connected, and one end of one end, one end of electric capacity C52 and electric capacity C54 of electric capacity C53 is electrically connected with 22V power ends
Connect, the other end of the other end, the other end of electric capacity C52 and electric capacity C54 of electric capacity C53 is grounded, digital power amplification module
20 feet pass sequentially through electric capacity C43, inductance L6 and electrically connect with 1 foot of a connector CN1, and 21 feet of digital power amplification module are successively
It is grounded by electric capacity C46 and resistance R42, and 21 feet of digital power amplification module are electrically connected with one end of inductance L6, digital work(
22 feet of rate amplification module, 25 feet and 28 feet are grounded, and 23 feet of digital power amplification module pass sequentially through electric capacity C27 and resistance
R18 is grounded, and 24 feet of digital power amplification module pass sequentially through electric capacity C33, inductance L5 and connect with 2 feet of connector CN1, patch
2 feet of part CN1 are grounded by electric capacity C28 and resistance R23, and one end of electric capacity C36 electrically connects with the other end of inductance L5, electric capacity
The other end of C36 passes sequentially through electric capacity C42, electric capacity C45 and resistance R35 ground connection, and the other end and electric capacity C42 of electric capacity C36
One end is grounded, and the other end of electric capacity C42 is electrically connected with the other end of inductance L6,31 feet and 32 feet of digital power amplification module
Electrically connect with 22V power ends, one end of one end, one end of electric capacity C14 and electric capacity C15 of electric capacity C13 is electric with 22V power ends
Connection, the other end of the other end, the other end of electric capacity C14 and electric capacity C15 of electric capacity C13 is grounded.
Preferably, the supply module of the power supply includes rectification filtering module, the Switching Power Supply vibration being electrically connected with successively
Chip, switch pipe, switch transformer, and rectification filtering module and the electric connection of switch pipe, also include
Sampling optocoupler, the first commutation diode and the second commutation diode；First commutation diode and the second commutation diode
Positive pole is electrically connected with switch transformer, and the sampling optocoupler is used for whole by what is collected from the first commutation diode negative pole
Stream signal transmission to Switching Power Supply vibrates chip.It can further solve the submodule for specifically including of power supply module.
Preferably, the Switching Power Supply vibrates model GR8876 of chip.Its power supply vibrating core that further holds open switch
The model of piece.
Preferably, model PC817 of the sampling optocoupler.The model of its further open sampling optocoupler.
Preferably, model TAP3118D2 of the digital power amplification module.It further discloses digital power and puts
The model of big module.
Preferably, model ES71441V of the D/A modular converters.It further discloses the tool of D/A modular converters
Build number.
Compared to existing technology, the beneficial effects of the utility model are：
The advantage of 2.4G Wireless surroundings audio amplifier of the present utility model：It is 1st, simple with wiring compared with traditional surround speaker,
Audio input line need not be accessed；2nd, surround speaker carries power amplifier, and without the need for main frame extra power consumption and radiating are further added by, and can allow and is
System work is relatively reliable；3rd, digital power amplifier is employed, greatly improves efficiency, more energy-conservation and environmental protection, stability is also obtained
Greatly improve.
Description of the drawings
Fig. 1 is the circuit structure diagram of this utility model 2.4G Wireless surrounding sound equipments；
Fig. 2 is transforming circuit structure chart in this utility model power supply module；
Fig. 3 is current rectifying and wave filtering circuit structure chart in this utility model power supply module；
Fig. 4 is voltage regulator circuit structure figure in this utility model power supply module.
Specific embodiment
Below, with reference to accompanying drawing and specific embodiment, this utility model is described further：
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of 2.4G Wireless surroundings sound equipment is present embodiments provided, including power supply is supplied
Electric module, binding post J1 and electrical 2.4G wireless receiving modules, D/A modular converters and digital power amplifier module successively, and
And power supply module is electrically connected with digital power amplification module；The model of the digital power amplification module
TAP3118D2, model ES71441V of the D/A modular converters, and digital power amplification module ought be received in quiet
During sound-like state, power supply module will carry out power down process；
The supply module of the power supply includes the rectification filtering module being electrically connected with successively, Switching Power Supply vibration chip, opens
Power supply switch tube, switch transformer are closed, and rectification filtering module is electrically connected with switch pipe, also including sampling light
Coupling, the first commutation diode and the second commutation diode；The positive pole of first commutation diode and the second commutation diode is equal
It is electrically connected with switch transformer, the sampling optocoupler is used for the rectified signal that will be collected from the first commutation diode negative pole
Transmit to Switching Power Supply and vibrate chip；The power supply module uses the vibration core of the power supply with efficiency high and working stability
Piece GR8876, switching tube uses 10N65, and the voltage of output is that 22.5V is used to be supplied to digital power amplification module TAP3118
Electricity, the accessory power supply of output is 3.3V, for powering to 2.4G wireless receiving modules and D/A modular converters, and this switch electricity
Source is respectively adopted to main power source and accessory power supply controls power supply vibration chip so that voltage stabilization can by the optocoupler of PC817 respectively
Lean on.Wireless receiving part uses 2.4G Wireless surrounding audio amplifiers and uses 2.4G wireless technologys, and power amplifier adopts digital power amplifier
TAP3118, with efficiency high, caloric value is low, the advantage of good stability；Power amplifier part uses digital power amplifier TPA3118, pole
Efficiency, more energy-conservation and environmental protection are improve greatly, stability is also greatly improved, outfan employs height cent frequency electricity
Road so that tonequality has obtained great lifting, sense of hearing becomes soft, resistance to and listens.
The power supply module is electrically connected with 14 feet of binding post J1, and the power supply module and digital power
The 12 feet electrical connection of amplification module, 21 feet of binding post J1 electrically connect with one end of resistance R55, the other end of resistance R55 and
The positive pole electrical connection of diode D8, the minus earth of diode D8,23 feet and one end of resistance L1B of binding post J1 are electrically connected
Connect, the other end of resistance L1B is electrically connected with a 3.3V power ends, 24 feet and the 2.4G wireless receiving modules of binding post J1 are electrically connected
Connect；
1 foot, 2 feet, 3 feet and 4 feet of the D/A modular converters, 19 feet, 17 feet, 16 feet and 20 respectively with binding post J1
Foot correspondence is electrically connected, and one end of electric capacity C67 and one end of electric capacity C71 electrically connect with 5 feet of D/A modular converters, electric capacity C67's
The other end of the other end and electric capacity C71 is grounded, and one end of electric capacity C69 and one end of electric capacity C68 are with the 6 of D/A modular converters
Foot is electrically connected, and the other end of electric capacity C69 and the other end of electric capacity C68 are grounded, 7 feet of D/A modular converters and the one of electric capacity C65
End electrical connection, the other end of electric capacity C65 is electrically connected with one end of one end of resistance R61 and resistance R62, and resistance R61's is another
End is electrically connected with one end of electric capacity C66 and one end of resistance R60, and the other end of electric capacity C66 and the other end of resistance R62 connect
Ground, the 8 feet ground connection of D/A modular converters, one end of electric capacity C62, one end of one end of electric capacity C61 and resistance R52 and D/A moduluss of conversion
The 9 feet electrical connection of block, the other end of electric capacity C62 and the other end of electric capacity C61 are grounded, the other end of capacitance group R52 and
3.3V power ends are electrically connected, and 10 feet of D/A modular converters electrically connect with one end of electric capacity C64, one end of resistance R53 and resistance
One end of R59 electrically connects with the other end of electric capacity C64, and one end of electric capacity C63 and one end of resistance R54 are with resistance R53's
The other end is electrically connected, and the other end of electric capacity C63 and the other end of resistance R59 are grounded, the other end and resistance R60 of resistance R54
The other end electrically connect with the other end of resistance R29；
The 1 foot ground connection of the digital power amplification module, 2 feet and 3 feet of digital power amplification module are with resistance R10's
One end electrically connects, and the other end of resistance R10 is electrically connected with a 22V power ends, 4 feet and the electric capacity C21 of digital power amplification module
One end electrical connection, the other end of electric capacity C21 electrically connects with one end of resistance R14,5 feet of digital power amplification module and electric capacity
One end electrical connection of C22, the other end of electric capacity C22 is electrically connected with one end of resistance R17, the other end and resistance R17 of resistance R14
The other end be grounded, 6 feet and 7 feet of digital power amplification module are electrically connected with one end of electric capacity C23, the one of electric capacity C23
End electrically connects with one end of resistance R24, the other end of resistance R24 and the other end of resistance R25 with digital power amplification module
The electrical connection of 8 feet, the other end of electric capacity C23 and the other end of resistance R25 be grounded, the 9 feet ground connection of digital power amplification module,
10 feet of digital power amplification module are electrically connected with one end of electric capacity C35, and the other end of electric capacity C35 is electric with one end of resistance R29
Connection, one end of resistance R31 and one end of electric capacity C40 electrically connects with the other end of resistance R29, the other end of resistance R31 with
The other end of electric capacity C40 is grounded, and 11 feet of digital power amplification module pass sequentially through electric capacity C38 and resistance R30 ground connection, electric capacity
One end of C44 and one end of resistance R33 electrically connect with 12 feet of digital power amplification module, the other end and electricity of electric capacity C44
The other end of resistance R33 is grounded, and 13 feet of digital power amplification module, 14 feet and 15 feet are grounded, and digital power amplifies mould
16 feet of block pass sequentially through resistance R36 and electric capacity C51 ground connection；17 feet of digital power amplification module, 18 feet and 19 feet are with one
22V power ends are electrically connected, and one end of one end, one end of electric capacity C52 and electric capacity C54 of electric capacity C53 is electrically connected with 22V power ends
Connect, the other end of the other end, the other end of electric capacity C52 and electric capacity C54 of electric capacity C53 is grounded, digital power amplification module
20 feet pass sequentially through electric capacity C43, inductance L6 and electrically connect with 1 foot of a connector CN1, and 21 feet of digital power amplification module are successively
It is grounded by electric capacity C46 and resistance R42, and 21 feet of digital power amplification module are electrically connected with one end of inductance L6, digital work(
22 feet of rate amplification module, 25 feet and 28 feet are grounded, and 23 feet of digital power amplification module pass sequentially through electric capacity C27 and resistance
R18 is grounded, and 24 feet of digital power amplification module pass sequentially through electric capacity C33, inductance L5 and connect with 2 feet of connector CN1, patch
2 feet of part CN1 are grounded by electric capacity C28 and resistance R23, and one end of electric capacity C36 electrically connects with the other end of inductance L5, electric capacity
The other end of C36 passes sequentially through electric capacity C42, electric capacity C45 and resistance R35 ground connection, and the other end and electric capacity C42 of electric capacity C36
One end is grounded, and the other end of electric capacity C42 is electrically connected with the other end of inductance L6,31 feet and 32 feet of digital power amplification module
Electrically connect with 22V power ends, one end of one end, one end of electric capacity C14 and electric capacity C15 of electric capacity C13 is electric with 22V power ends
Connection, the other end of the other end, the other end of electric capacity C14 and electric capacity C15 of electric capacity C13 is grounded.
The operation principle of the present embodiment：
The 2.4G Wireless surrounding audio amplifiers of the present embodiment use 2.4G wireless technologys, and this frequency range is the free nothing of country's opening
Line frequency range, the surround speaker has the function of automatic frequency aligning, without the need for manual intervention, possesses a pair two of function, i.e., one wireless
Transmitting relative with two wireless receivings can connect, and wireless transmit is built in main frame, and wireless receiving is built in Wireless surrounding audio amplifier,
Wireless receiving distance is more than indoors 10M, fully meets the use demand of surround speaker, this product employing wireless 2.4G technologies
32/44.1/48KHz sample rates are supported under I2S digital audio interfaces, when running into strong interference or extremely bad condition of acceptance can be automatic
Quiet, audio frequency delay is less than 20ms.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection of this utility model claim
Within the scope of.
Claims (6)
1. a kind of 2.4G Wireless surroundings sound equipment, it is characterised in that connect including power supply module, binding post J1 and electrically successively
2.4G wireless receiving modules, D/A modular converters and the digital power amplifier module for connecing, and power supply module and digital power
Amplification module is electrically connected with；
The power supply module is electrically connected with 14 feet of binding post J1, and the power supply module amplifies with digital power
The 12 feet electrical connection of module, 21 feet of binding post J1 electrically connect with one end of resistance R55, the other end of resistance R55 and two poles
The positive pole electrical connection of pipe D8, the minus earth of diode D8,23 feet of binding post J1 are electrically connected with one end of resistance L1B, electricity
The other end of resistance L1B is electrically connected with a 3.3V power ends, and 24 feet of binding post J1 are electrically connected with 2.4G wireless receiving modules；
1 foot, 2 feet, 3 feet and 4 feet of the D/A modular converters 19 feet respectively with binding post J1,17 feet, 16 feet and 20 feet pair
Should electrically connect, one end of electric capacity C67 and one end of electric capacity C71 electrically connect with 5 feet of D/A modular converters, and electric capacity C67's is another
The other end of end and electric capacity C71 is grounded, and one end of electric capacity C69 and one end of electric capacity C68 are electric with 6 feet of D/A modular converters
Connection, the other end of electric capacity C69 and the other end of electric capacity C68 are grounded, and 7 feet of D/A modular converters are electric with one end of electric capacity C65
One end of connection, the other end of electric capacity C65 and one end of resistance R61 and resistance R62 is electrically connected with, the other end of resistance R61 with
One end of electric capacity C66 and one end of resistance R60 are electrically connected with, and the other end of electric capacity C66 and the other end of resistance R62 are grounded,
The 8 feet ground connection of D/A modular converters, one end of electric capacity C62, one end of one end of electric capacity C61 and resistance R52 and D/A modular converters
The electrical connection of 9 feet, the other end of electric capacity C62 and the other end of electric capacity C61 be grounded, the other end of capacitance group R52 and a 3.3V
Power end is electrically connected, and 10 feet of D/A modular converters electrically connect with one end of electric capacity C64, one end of resistance R53 and resistance R59's
One end electrically connects with the other end of electric capacity C64, one end of electric capacity C63 and one end of resistance R54 with the other end of resistance R53
Electrical connection, the other end of electric capacity C63 and the other end of resistance R59 are grounded, and the other end of resistance R54 and resistance R60's is another
End electrically connects with the other end of resistance R29；
The 1 foot ground connection of the digital power amplification module, 2 feet and 3 feet of digital power amplification module with one end of resistance R10
Electrical connection, the other end of resistance R10 is electrically connected with a 22V power ends, 4 feet of digital power amplification module and the one of electric capacity C21
End electrical connection, the other end of electric capacity C21 is electrically connected with one end of resistance R14,5 feet and the electric capacity C22 of digital power amplification module
One end electrical connection, the other end of electric capacity C22 electrically connects with one end of resistance R17, the other end of resistance R14 and resistance R17's
The other end is grounded, and 6 feet and 7 feet of digital power amplification module are electrically connected with one end of electric capacity C23, one end of electric capacity C23
Electrically connect with one end of resistance R24, the other end of resistance R24 and the other end of resistance R25 are with the 8 of digital power amplification module
Foot is electrically connected, and the other end of electric capacity C23 and the other end of resistance R25 are grounded, the 9 feet ground connection of digital power amplification module, number
10 feet of word power amplifier module are electrically connected with one end of electric capacity C35, and the other end and one end of resistance R29 of electric capacity C35 are electrically connected
Connect, one end of resistance R31 and one end of electric capacity C40 electrically connect with the other end of resistance R29, the other end and electricity of resistance R31
The other end for holding C40 is grounded, and 11 feet of digital power amplification module pass sequentially through electric capacity C38 and resistance R30 ground connection, electric capacity
One end of C44 and one end of resistance R33 electrically connect with 12 feet of digital power amplification module, the other end and electricity of electric capacity C44
The other end of resistance R33 is grounded, and 13 feet of digital power amplification module, 14 feet and 15 feet are grounded, and digital power amplifies mould
16 feet of block pass sequentially through resistance R36 and electric capacity C51 ground connection；17 feet of digital power amplification module, 18 feet and 19 feet are with one
22V power ends are electrically connected, and one end of one end, one end of electric capacity C52 and electric capacity C54 of electric capacity C53 is electrically connected with 22V power ends
Connect, the other end of the other end, the other end of electric capacity C52 and electric capacity C54 of electric capacity C53 is grounded, digital power amplification module
20 feet pass sequentially through electric capacity C43, inductance L6 and electrically connect with 1 foot of a connector CN1, and 21 feet of digital power amplification module are successively
It is grounded by electric capacity C46 and resistance R42, and 21 feet of digital power amplification module are electrically connected with one end of inductance L6, digital work(
22 feet of rate amplification module, 25 feet and 28 feet are grounded, and 23 feet of digital power amplification module pass sequentially through electric capacity C27 and resistance
R18 is grounded, and 24 feet of digital power amplification module pass sequentially through electric capacity C33, inductance L5 and connect with 2 feet of connector CN1, patch
2 feet of part CN1 are grounded by electric capacity C28 and resistance R23, and one end of electric capacity C36 electrically connects with the other end of inductance L5, electric capacity
The other end of C36 passes sequentially through electric capacity C42, electric capacity C45 and resistance R35 ground connection, and the other end and electric capacity C42 of electric capacity C36
One end is grounded, and the other end of electric capacity C42 is electrically connected with the other end of inductance L6,31 feet and 32 feet of digital power amplification module
Electrically connect with 22V power ends, one end of one end, one end of electric capacity C14 and electric capacity C15 of electric capacity C13 is electric with 22V power ends
Connection, the other end of the other end, the other end of electric capacity C14 and electric capacity C15 of electric capacity C13 is grounded.
2. 2.4G Wireless surroundings sound equipment as claimed in claim 1, it is characterised in that the supply module of the power supply is included successively
The rectification filtering module of electric connection, Switching Power Supply vibration chip, switch pipe, switch transformer, and rectifying and wave-filtering
Module is electrically connected with switch pipe, also including sampling optocoupler, the first commutation diode and the second commutation diode；Institute
The positive pole for stating the first commutation diode and the second commutation diode is electrically connected with switch transformer, and the sampling optocoupler is used for
The rectified signal collected from the first commutation diode negative pole is transmitted to Switching Power Supply and vibrates chip.
3. 2.4G Wireless surroundings sound equipment as claimed in claim 2, it is characterised in that the Switching Power Supply vibrates the model of chip
For GR8876.
4. 2.4G Wireless surroundings sound equipment as claimed in claim 2, it is characterised in that model PC817 of the sampling optocoupler.
5. 2.4G Wireless surroundings sound equipment as claimed in claim 1, it is characterised in that the model of the digital power amplification module
For TAP3118D2.
6. 2.4G Wireless surroundings sound equipment as claimed in claim 1, it is characterised in that the model of the D/A modular converters
ES71441V。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621041133.4U CN206136244U (en) | 2016-09-06 | 2016-09-06 | 2. 4G wireless stereo set that encircles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621041133.4U CN206136244U (en) | 2016-09-06 | 2016-09-06 | 2. 4G wireless stereo set that encircles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206136244U true CN206136244U (en) | 2017-04-26 |
Family
ID=58568018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621041133.4U Active CN206136244U (en) | 2016-09-06 | 2016-09-06 | 2. 4G wireless stereo set that encircles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206136244U (en) |
-
2016
- 2016-09-06 CN CN201621041133.4U patent/CN206136244U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205450745U (en) | Intelligent sound box | |
| CN104301521A (en) | Modulation mode and communication circuit based on mobile phone audio interface and communication method of communication circuit based on mobile phone audio interface | |
| CN207010925U (en) | A kind of Headphone device for carrying voice and waking up identification | |
| CN206413131U (en) | A kind of wireless microphone with Bluetooth function | |
| CN204965035U (en) | Doppler's pronunciation collection system of intelligence house center control system | |
| CN100365940C (en) | Tourist communication device and its communication method | |
| CN206136244U (en) | 2. 4G wireless stereo set that encircles | |
| CN206775720U (en) | A kind of bluetooth connection for gathering multifunctional intellectual sound equipment and transport module | |
| CN206075787U (en) | A kind of intelligent sound introduction system | |
| CN102568188A (en) | Infrared remote control device and method for intelligent host | |
| CN202502615U (en) | Infrared remote control device for smart host | |
| CN103136924B (en) | A kind of multifunction remote-controller | |
| CN203933733U (en) | The interactive communication device of a kind of remote sound | |
| CN204335931U (en) | A kind of E.E.G detects automatic switchover music sunbonnet | |
| CN205901927U (en) | Mining visual hands free telephone | |
| CN207623958U (en) | A kind of multifunction speech on-demand device | |
| CN204795239U (en) | Multifunction cell phone | |
| CN207075067U (en) | Bluetooth microphone based on Aptx LL codings | |
| CN206833233U (en) | A kind of intelligent domestic system with phonetic order transimiison analysis function | |
| CN206136216U (en) | Earphone with pronunciation remote control function | |
| CN208971730U (en) | A kind of microphone of wireless connection | |
| CN212059092U (en) | Noise detection device based on bluetooth low energy transmission | |
| CN218336339U (en) | Rechargeable wireless microphone | |
| CN203104689U (en) | Remote controller | |
| CN206341353U (en) | A kind of and supporting Multifunctional wireless microphone of smart home |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |