CN206461747U - A kind of Baffle Box of Bluetooth - Google Patents
A kind of Baffle Box of Bluetooth Download PDFInfo
- Publication number
- CN206461747U CN206461747U CN201720129647.3U CN201720129647U CN206461747U CN 206461747 U CN206461747 U CN 206461747U CN 201720129647 U CN201720129647 U CN 201720129647U CN 206461747 U CN206461747 U CN 206461747U
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- bluetooth
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Abstract
The utility model is related to sound-box device technical field, specially a kind of Baffle Box of Bluetooth.A kind of Baffle Box of Bluetooth, including mainboard, the mainboard are provided with power module, main control module and power amplifier module；The power module includes MICRO_USB interfaces, the 8th electric capacity is connected between No. 1 port of the MICRO_USB interfaces and No. 2 ports of the MICRO_USB interfaces, 8th electric capacity is parallel with the 22nd electric capacity, positive terminal connection+5V the power supplys of 22nd electric capacity, the negative pole end ground connection of the 22nd electric capacity.Audio amplifier of the present utility model, outside 5V power supplys are powered by being used after power module filtering and voltage stabilizing for bluetooth main control module and power amplifier module, the signal that main control module is responsible for being connected with bluetooth equipment and transmitting bluetooth equipment is handled and is transported to power amplifier module, power amplifier module is responsible for the audio signal received to amplify and promotes loudspeaker to send sound, the circuit design structure of the audio amplifier can improve the tonequality of audio amplifier, can improve the performance of audio amplifier.
Description
Technical field
The utility model is related to sound-box device technical field, specially a kind of Baffle Box of Bluetooth.
Background technology
Baffle Box of Bluetooth exactly applies Bluetooth technology on conventional digital and multimedia loudspeaker box, user can exempt angry
Impeding for people's electric wire, listens to music in a variety of ways comfortablely.
Compared with traditional audio amplifier, Baffle Box of Bluetooth has the characteristics that, is widely used, Bluetooth specification whole world system
One, the Bluetooth specification whole world is unified, mobile phone, PDA, wireless headset, notebook computer, automobile, Medical Devices, outside computer
If waiting numerous equipment, as long as possessing Bluetooth adapter, bluetooth equipment just can be easily connected, is carried out data transmission or voice communication,
Widely available, compatibility is good；Easy to operate, Bluetooth technology is an instant technology, and it does not require fixed infrastructure, and easily
In installation and setting, it is not necessary to which cable is that connection can be achieved, and very easy to use, only need to be accomplished in a simple pairing and can put into makes
With operation threshold is relatively low；Transmission speed is very fast, and compared to the other modes such as infrared, Bluetooth transmission protocol has bright in speed
Aobvious advantage, the theoretical maximum speed of bluetooth 4.0 reaches 24Mbps, and faster speed ensures that higher tonequality, there is it
The higher music of enough ability carrying code checks；Transmission range is moderate, and the transmission range of bluetooth is general within 10 meters, exactly
The size in one room, and can partition wall transmission data, be especially suitable for domestic environment and use.
But existing Baffle Box of Bluetooth, due to its circuit design problem, the sound timbre played back is poor.
Utility model content
A kind of the problem of the utility model exists for prior art, it is proposed that Baffle Box of Bluetooth, employs specific circuit
Design structure, improves the tonequality of audio amplifier, improves the performance of audio amplifier.
The utility model solves the technical scheme that its technical problem used：A kind of Baffle Box of Bluetooth, including mainboard, it is described
Mainboard is provided with power module, main control module and power amplifier module；The power module includes MICRO_USB interfaces, described
The 8th electric capacity, the 8th electricity are connected between No. 1 port of MICRO_USB interfaces and No. 2 ports of the MICRO_USB interfaces
Appearance is parallel with the 22nd electric capacity, the positive terminal connection+5V power supplys of the 22nd electric capacity, the negative pole end ground connection of the 22nd electric capacity；
The power amplifier module includes the first NS4150 chips and the 2nd NS4150 chips；
The IN- of the first NS4150 chips terminates the 13rd electric capacity, and the other end of the 13rd electric capacity connects the 1st electricity respectively
Resistance and the 5th resistance, the electric capacity of another termination the 12nd of the 1st resistance, another termination of the 5th resistance is digitally；Described first
The VO+ ends of NS4150 chips connect No. 1 port of the first loudspeaker, and the VO- ends of the first NS4150 chips connect the first loudspeaker
No. 2 ports；
The IN- of the first NS4150 chips terminates the 15th electric capacity, and the other end of the 15th electric capacity connects the 2nd electricity respectively
Resistance and the 6th resistance, the electric capacity of another termination the 14th of the 6th resistance, another termination of the 6th resistance is digitally；Described second
The VO+ ends of NS4150 chips connect No. 1 port of the second loudspeaker, and the VO- ends of the 2nd NS4150 chips connect the second loudspeaker
No. 2 ports；
The main control module includes AC6905A chips；The PC5 ends of the AC6905A chips and the first NS4150 cores
The CTRL ends connection of piece, the PC5 ends of the AC6905A chips and the CTRL ends of the 2nd NS4150 chips pass through the 7th resistance
Connection, the DACR ends of the AC6905A chips are connected with the other end of the 12nd electric capacity, the DACL ends of the AC6905A chips and
The other end connection of 14th electric capacity.
Preferably, the DACVDD ports of the AC6905A chips connect the 1st electric capacity, the other end of the 1st electric capacity connects
Connect digitally；The VCOM ends of the AC6905A chips connect the 2nd electric capacity, and the other end connection of the 2nd electric capacity is digitally；Institute
State the DACVSS terminations of AC6905A chips digitally；It is described digitally to pass through the 10th resistance eutral grounding；10th resistance is zero Europe
Nurse resistance.
Preferably, the AC6905A chips PC4 ports connect the 8th resistance one end, the 8th resistance it is another
Hold the positive terminal of connecting luminous diode, the negative pole end ground connection of the light emitting diode.
Preferably, being connected between the LDO_IN ends of the AC6905A chips and the VSSIO ends of the AC6905A chips
There is the 9th electric capacity, one end of the 11st resistance is connected between the LDO_IN ends of the AC6905A chips and the 9th electric capacity, it is described
Other end connection+5V the power supplys of 11st resistance, the VSSIO ends of the AC6905A chips and the 9th electric capacity indirectly；Institute
The 11st resistance is stated for Zero-ohm resistor.
Preferably, the VDDIO ends connection+3V power supplys of the AC6905A chips, the VDDIO ends of the AC6905A chips
One end with the 3rd electric capacity between+3V power supplys is connected, the other end ground connection of the 3rd electric capacity.
Preferably, connecting between the BT_OSCO ends of the AC6905A chips and the BT_OSCI ends of the AC6905A chips
CPU operation crystal oscillators are connected to, one end of the CPU operations crystal oscillator connects the 20th electric capacity, the other end connection of the CPU operations crystal oscillator
21st electric capacity, the other end of the 20th electric capacity and the other end common ground of the 21st electric capacity.
Preferably, the BT_RF ends of the AC6905A chips connect the 9th resistance, the other end connection of the 9th resistance
18th electric capacity, the other end of the 18th electric capacity connects the 1st port of Bluetooth antenna, the 2nd port ground connection of the Bluetooth antenna；
9th resistance is Zero-ohm resistor.
Preferably, between the BT_AVDD ports of the AC6905A chips and the VSSIO ports of the AC6905A chips
Connect the 19th electric capacity, the VSSIO ports of the AC6905A chips and the 19th electric capacity indirectly.
Preferably, the BYP of the first NS4150 chips terminates the 6th electric capacity, the other end ground connection of the 6th electric capacity；
The IN+ of the first NS4150 chips terminates the 3rd resistance, the electric capacity of another termination the 16th of the 3rd resistance, the 16th electric capacity
The other end ground connection；The 4th is connected between the GND ends of the first NS4150 chips and the VDD of the first NS4150 chips
Electric capacity, the 4th electric capacity is parallel with the 10th electric capacity, and the GND ends of the first NS4150 chips and the 10th electric capacity are indirectly
Ground, vdd terminal and the+5V power supplys indirectly of the 10th electric capacity of the first NS4150 chips.
Preferably, the BYP of the 2nd NS4150 chips terminates the 7th electric capacity, the other end ground connection of the 7th electric capacity；
The IN+ of the first NS4150 chips terminates the 4th resistance, the electric capacity of another termination the 17th of the 4th resistance, the 17th electric capacity
The other end ground connection；The 5th is connected between the GND ends of the 2nd NS4150 chips and the VDD of the 2nd NS4150 chips
Electric capacity, the 5th electric capacity is parallel with the 11st electric capacity, and the GND ends of the 2nd NS4150 chips and the 11st electric capacity are indirectly
Ground, vdd terminal and the+5V power supplys indirectly of the 11st electric capacity of the 2nd NS4150 chips.
The beneficial effects of the utility model are that the mainboard of audio amplifier is provided with power module, main control module and power amplifier module, outside
5V power supplys power by power module filtering and voltage stabilizing after used for bluetooth main control module and power amplifier module, main control module be responsible for and
The signal that bluetooth equipment connects and bluetooth equipment is transmitted is handled and is transported to power amplifier module, and power amplifier module is responsible for handle
The audio signal received is amplified and promotes loudspeaker to send sound, and the circuit design structure of the audio amplifier can improve the sound of audio amplifier
Matter, can improve the performance of audio amplifier.
Brief description of the drawings
Fig. 1 is a kind of electrical block diagram of the main control module of Baffle Box of Bluetooth of the utility model；
Fig. 2 is a kind of electrical block diagram of the power amplifier module L channel of Baffle Box of Bluetooth of the utility model；
Fig. 3 is a kind of electrical block diagram of the power amplifier module R channel of Baffle Box of Bluetooth of the utility model；
Fig. 4 is a kind of electrical block diagram of the power module of Baffle Box of Bluetooth of the utility model.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
A kind of Baffle Box of Bluetooth, including mainboard, the mainboard are provided with power module, main control module and power amplifier module.Such as Fig. 4
Shown, the power module includes MICRO_USB interfaces, No. 1 port and the MICRO_USB of the MICRO_USB interfaces
The 8th electric capacity is connected between No. 2 ports of interface, the 8th electric capacity is parallel with the 22nd electric capacity, the positive terminal of the 22nd electric capacity
Connection+5V power supplys, the negative pole end ground connection of the 22nd electric capacity.Baffle Box of Bluetooth uses MICRO_USB interfaces, can pass through Android hand
Machine data wire is connected to computer to power or Android mobile phone charger is powered, and MICRO_USB interfaces can be that MICRO_USB is inserted
Seat.Wherein, the value of the 8th electric capacity is 0.1 microfarad.
As shown in Figures 2 and 3, the power amplifier module includes the first NS4150 chips and the 2nd NS4150 chips.Described
The IN- of one NS4150 chips terminates the 13rd electric capacity, and the other end of the 13rd electric capacity connects the 1st resistance and the 5th resistance respectively, institute
The electric capacity of another termination the 12nd of the 1st resistance is stated, another termination of the 5th resistance is digitally；The VO+ of the first NS4150 chips
No. 1 port of the first loudspeaker of end connection, the VO- ends of the first NS4150 chips connect No. 2 ports of the first loudspeaker.Described
The BYP of one NS4150 chips terminates the 6th electric capacity, the other end ground connection of the 6th electric capacity；The IN+ of the first NS4150 chips
Terminate the 3rd resistance, the electric capacity of another termination the 16th of the 3rd resistance, the other end ground connection of the 16th electric capacity；Described first
The 4th electric capacity is connected between the VDD of the GND ends of NS4150 chips and the first NS4150 chips, the 4th electric capacity is parallel with
10th electric capacity, the GND ends of the first NS4150 chips and the 10th electric capacity indirectly, the first NS4150 chips
Vdd terminal and the+5V power supplys indirectly of the 10th electric capacity.
Wherein, the value of the 13rd electric capacity is 0.1 microfarad, and the 1st resistance is 51K ohm, and the 5th resistance can be not provided with, the 12nd electricity
Hold for 0.1 microfarad, the 6th electric capacity is 1 microfarad, the 3rd resistance is 51K ohm, the 16th electric capacity is 0.1 microfarad, the 4th electric capacity is 1 microfarad,
10th electric capacity is 0.1 microfarad.
The IN- of the first NS4150 chips terminates the 15th electric capacity, and the other end of the 15th electric capacity connects the 2nd electricity respectively
Resistance and the 6th resistance, the electric capacity of another termination the 14th of the 6th resistance, another termination of the 6th resistance is digitally；Described second
The VO+ ends of NS4150 chips connect No. 1 port of the second loudspeaker, and the VO- ends of the 2nd NS4150 chips connect the second loudspeaker
No. 2 ports.The BYP of the 2nd NS4150 chips terminates the 7th electric capacity, the other end ground connection of the 7th electric capacity；Described first
The IN+ of NS4150 chips terminates the 4th resistance, the electric capacity of another termination the 17th of the 4th resistance, the other end of the 17th electric capacity
Ground connection；The 5th electric capacity is connected between the GND ends of the 2nd NS4150 chips and the VDD of the 2nd NS4150 chips, it is described
5th electric capacity is parallel with the 11st electric capacity, the GND ends of the 2nd NS4150 chips and the 11st electric capacity indirectly, described the
The vdd terminal of two NS4150 chips and the+5V power supplys indirectly of the 11st electric capacity.
Wherein, the value of the 15th electric capacity is 0.1 microfarad, and the 2nd resistance is 51K ohm, and the 6th resistance can be not provided with, the 14th electricity
Hold for 0.1 microfarad, the 7th electric capacity is 1 microfarad, the 4th resistance is 51K ohm, the 17th electric capacity is 0.1 microfarad, the 5th electric capacity is 1 microfarad,
11st electric capacity is 0.1 microfarad.
When main control module the audio signal received be converted into electric signal be followed by by the DACR ends of AC6905A chips and
DACL ends are transferred to the first NS4150 chips and the 2nd NS4150 chips, the first NS4150 chips and the 2nd NS4150 chips just
The low level signal amplification received is output to loudspeaker by VO+ ends and VO- ends, and driving loudspeaker send sound.This circuit design is double
Sound channel, each loudspeaker in left and right.MUTE switchs for master control module controls power amplifier module, is closed when being not received by Bluetooth signal
Power amplifier so both can also reduce the noise of loudspeaker with power saving when no signal is inputted.
As shown in figure 1, the main control module includes AC6905A chips, the PC5 ends of the AC6905A chips and described the
The CTRL ends connection of one NS4150 chips, the PC5 ends of the AC6905A chips and the CTRL ends of the 2nd NS4150 chips lead to
The connection of the 7th resistance is crossed, the DACR ends of the AC6905A chips are connected with the other end of the 12nd electric capacity, the AC6905A chips
DACL ends are connected with the other end of the 14th electric capacity.Wherein, the value of the 7th resistance is 10K ohm.
The DACVDD ports of the AC6905A chips connect the 1st electric capacity, and the other end connection of the 1st electric capacity is digitally；
The VCOM ends of the AC6905A chips connect the 2nd electric capacity, and the other end connection of the 2nd electric capacity is digitally；The AC6905A
The DACVSS terminations of chip are digitally；It is described digitally to pass through the 10th resistance eutral grounding；10th resistance is Zero-ohm resistor, with
Just with convenient change resistance value during post debugging.The PC4 ports of the AC6905A chips connect one end of the 8th resistance, the described 8th
The positive terminal of the other end connecting luminous diode of resistance, the negative pole end ground connection of the light emitting diode.Wherein, the 1st electric capacity
It is worth for 1 microfarad, the value of the 2nd electric capacity is 1 microfarad, and the value of the 8th resistance is 2K ohm.
The 9th electric capacity is connected between the LDO_IN ends of the AC6905A chips and the VSSIO ends of the AC6905A chips,
Between the LDO_IN ends of the AC6905A chips and the 9th electric capacity connect the 11st resistance one end, the 11st resistance it is another
One end connection+5V power supplys, the VSSIO ends of the AC6905A chips and the 9th electric capacity indirectly；11st resistance is
Zero-ohm resistor, so as to convenient change resistance value during post debugging.The VDDIO ends connection+3V power supplys of the AC6905A chips,
It is connected between the VDDIO ends of the AC6905A chips and+3V power supplys with one end of the 3rd electric capacity, the other end of the 3rd electric capacity
Ground connection.Wherein, the value of the 9th electric capacity is 0.1 microfarad, and the value of the 3rd electric capacity is 1 microfarad.
CPU fortune is connected between the BT_OSCO ends of the AC6905A chips and the BT_OSCI ends of the AC6905A chips
Row crystal oscillator, one end of the CPU operations crystal oscillator connects the 20th electric capacity, and the other end of the CPU operations crystal oscillator connects the 21st electric capacity,
The other end of 20th electric capacity and the other end common ground of the 21st electric capacity.Wherein, the value of the 20th electric capacity is 15 skins
Method, the value of the 21st electric capacity is 15 pico farads.
The BT_RF ends of the AC6905A chips connect the 9th resistance, and the other end of the 9th resistance connects the 18th electric capacity,
The other end of 18th electric capacity connects the 1st port of Bluetooth antenna, the 2nd port ground connection of the Bluetooth antenna；9th electricity
Hinder for Zero-ohm resistor, so as to convenient change resistance value during post debugging.The BT_AVDD ports of the AC6905A chips and institute
State the 19th electric capacity of connection, the VSSIO ports of the AC6905A chips and the described 19th between the VSSIO ports of AC6905A chips
Electric capacity indirectly.Wherein, the value of the 18th electric capacity is 2.7 pico farads.
Main control module, i.e. CPU main control parts are using outstanding reason bluetooth specific Chip Microcomputer A C6905A, when mobile phone or computer handle
Audio signal is sent to after Baffle Box of Bluetooth main control module by bluetooth equipment, and main control module is converted into the audio signal received
Electric signal is transferred to power amplifier module by the DACR ends and DACL ends of AC6905A chips.
Embodiment described above is only that preferred embodiment of the present utility model is described, not new to this practicality
The spirit and scope of type are defined.On the premise of the utility model design concept is not departed from, this area ordinary person is to this
The all variations and modifications that the technical scheme of utility model is made, all should drop into protection domain of the present utility model, this practicality
New claimed technology contents, have all been recorded in detail in the claims.
Claims (10)
1. a kind of Baffle Box of Bluetooth, it is characterised in that：Including mainboard, the mainboard is provided with power module, main control module and power amplifier
Module；The power module includes MICRO_USB interfaces, No. 1 port and the MICRO_USB of the MICRO_USB interfaces
The 8th electric capacity is connected between No. 2 ports of interface, the 8th electric capacity is parallel with the 22nd electric capacity, the positive terminal of the 22nd electric capacity
Connection+5V power supplys, the negative pole end ground connection of the 22nd electric capacity；
The power amplifier module includes the first NS4150 chips and the 2nd NS4150 chips；
The IN- of the first NS4150 chips terminates the 13rd electric capacity, the other end of the 13rd electric capacity connect respectively the 1st resistance and
5th resistance, the electric capacity of another termination the 12nd of the 1st resistance, another termination of the 5th resistance is digitally；Described first
The VO+ ends of NS4150 chips connect No. 1 port of the first loudspeaker, and the VO- ends of the first NS4150 chips connect the first loudspeaker
No. 2 ports；
The IN- of the first NS4150 chips terminates the 15th electric capacity, the other end of the 15th electric capacity connect respectively the 2nd resistance and
6th resistance, the electric capacity of another termination the 14th of the 6th resistance, another termination of the 6th resistance is digitally；Described second
The VO+ ends of NS4150 chips connect No. 1 port of the second loudspeaker, and the VO- ends of the 2nd NS4150 chips connect the second loudspeaker
No. 2 ports；
The main control module includes AC6905A chips；The PC5 ends of the AC6905A chips and the first NS4150 chips
CTRL ends are connected, and the PC5 ends of the AC6905A chips are connected with the CTRL ends of the 2nd NS4150 chips by the 7th resistance,
The DACR ends of the AC6905A chips are connected with the other end of the 12nd electric capacity, the DACL ends of the AC6905A chips and the 14th electricity
The other end connection of appearance.
2. a kind of Baffle Box of Bluetooth according to claim 1, it is characterised in that：The DACVDD ports of the AC6905A chips
The 1st electric capacity is connected, the other end connection of the 1st electric capacity is digitally；The VCOM ends of the AC6905A chips connect the 2nd electric capacity,
The other end connection of 2nd electric capacity is digitally；The DACVSS terminations of the AC6905A chips are digitally；It is described digitally to lead to
Cross the 10th resistance eutral grounding；10th resistance is Zero-ohm resistor.
3. a kind of Baffle Box of Bluetooth according to claim 1, it is characterised in that：The PC4 ports connection of the AC6905A chips
One end of 8th resistance, the positive terminal of the other end connecting luminous diode of the 8th resistance, the negative pole of the light emitting diode
End ground connection.
4. a kind of Baffle Box of Bluetooth according to claim 1, it is characterised in that：The LDO_IN ends of the AC6905A chips with
The 9th electric capacity, the LDO_IN ends of the AC6905A chips and the described 9th are connected between the VSSIO ends of the AC6905A chips
One end of the 11st resistance of connection between electric capacity, the other end connection+5V power supplys of the 11st resistance, the AC6905A chips
VSSIO ends and the 9th electric capacity indirectly；11st resistance is Zero-ohm resistor.
5. a kind of Baffle Box of Bluetooth according to claim 1, it is characterised in that：The VDDIO ends connection of the AC6905A chips
+ 3V power supplys, are connected between the VDDIO ends of the AC6905A chips and+3V power supplys with one end of the 3rd electric capacity, the 3rd electric capacity
The other end ground connection.
6. a kind of Baffle Box of Bluetooth according to claim 1, it is characterised in that：The BT_OSCO ends of the AC6905A chips with
CPU operation crystal oscillators, one end connection the 20th of the CPU operations crystal oscillator are connected between the BT_OSCI ends of the AC6905A chips
Electric capacity, the other end of the CPU operations crystal oscillator connects the 21st electric capacity, the other end and the 21st electric capacity of the 20th electric capacity
Other end common ground.
7. a kind of Baffle Box of Bluetooth according to claim 1, it is characterised in that：The BT_RF ends connection of the AC6905A chips
9th resistance, the other end of the 9th resistance connects the 18th electric capacity, the 1st of the other end connection Bluetooth antenna of the 18th electric capacity the
Port, the 2nd port ground connection of the Bluetooth antenna；9th resistance is Zero-ohm resistor.
8. a kind of Baffle Box of Bluetooth according to claim 1, it is characterised in that：The BT_AVDD ports of the AC6905A chips
Be connected the 19th electric capacity between the VSSIO ports of the AC6905A chips, the VSSIO ports of the AC6905A chips with it is described
19th electric capacity indirectly.
9. a kind of Baffle Box of Bluetooth according to claim 1, it is characterised in that：The BYP terminations of the first NS4150 chips
6th electric capacity, the other end ground connection of the 6th electric capacity；The IN+ of the first NS4150 chips terminates the 3rd resistance, the 3rd electricity
The electric capacity of another termination the 16th of resistance, the other end ground connection of the 16th electric capacity；The GND ends of the first NS4150 chips with it is described
The 4th electric capacity is connected between the VDD of first NS4150 chips, the 4th electric capacity is parallel with the 10th electric capacity, the first NS4150
The GND ends of chip and the 10th electric capacity indirectly, between the vdd terminal and the 10th electric capacity of the first NS4150 chips
Connect+5V power supplys.
10. a kind of Baffle Box of Bluetooth according to claim 1, it is characterised in that：The BYP terminations of the 2nd NS4150 chips
7th electric capacity, the other end ground connection of the 7th electric capacity；The IN+ of the first NS4150 chips terminates the 4th resistance, the 4th electricity
The electric capacity of another termination the 17th of resistance, the other end ground connection of the 17th electric capacity；The GND ends of the 2nd NS4150 chips with it is described
The 5th electric capacity is connected between the VDD of 2nd NS4150 chips, the 5th electric capacity is parallel with the 11st electric capacity, the 2nd NS4150
The GND ends of chip and the 11st electric capacity indirectly, between the vdd terminal and the 11st electric capacity of the 2nd NS4150 chips
Connect+5V power supplys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720129647.3U CN206461747U (en) | 2017-02-14 | 2017-02-14 | A kind of Baffle Box of Bluetooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720129647.3U CN206461747U (en) | 2017-02-14 | 2017-02-14 | A kind of Baffle Box of Bluetooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206461747U true CN206461747U (en) | 2017-09-01 |
Family
ID=59693924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720129647.3U Expired - Fee Related CN206461747U (en) | 2017-02-14 | 2017-02-14 | A kind of Baffle Box of Bluetooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206461747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109725583A (en) * | 2019-03-04 | 2019-05-07 | 郑州鸿彩照明科技有限公司 | A kind of blue-tooth intelligence switch controller and its control method |
-
2017
- 2017-02-14 CN CN201720129647.3U patent/CN206461747U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109725583A (en) * | 2019-03-04 | 2019-05-07 | 郑州鸿彩照明科技有限公司 | A kind of blue-tooth intelligence switch controller and its control method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170901 Termination date: 20190214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |