CN209314006U - A kind of bluetooth headset - Google Patents
A kind of bluetooth headset Download PDFInfo
- Publication number
- CN209314006U CN209314006U CN201822163655.7U CN201822163655U CN209314006U CN 209314006 U CN209314006 U CN 209314006U CN 201822163655 U CN201822163655 U CN 201822163655U CN 209314006 U CN209314006 U CN 209314006U
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- China
- Prior art keywords
- led
- bluetooth headset
- chip
- main control
- drive circuit
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- Measurement Of Current Or Voltage (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of bluetooth headsets, including main control chip and battery, further include electric quantity detecting circuit, multiple LED and LED drive circuit；Wherein electric quantity detecting circuit includes BQ27421 chip, which passes through I2C bus transfer detects signal to main control chip；Plurality of LED is for showing battery dump energy percentage, and each LED is successively embedded in bluetooth headset hull outside；Wherein LED drive circuit is electrically connected with main control chip and each LED respectively.Electric quantity detecting circuit detects battery dump energy percentage, and corresponding electric signal transmission is converted to LED drive circuit by main control chip, the LED for controlling corresponding number shines, and user is allowed intuitively to see battery dump energy percentage, without external equipment, it will be able to know battery capacity.Therefore the utility model has the function of battery dump energy percentages show, simple easy to identify.
Description
Technical field
The utility model relates to consumer electronics product technical field more particularly to a kind of bluetooth headsets.
Background technique
With the development of science and technology various headphones, bluetooth headset also come into being, earphone also enters the daily of masses
Life.People are listened to music with earphone, played games, received calls, and the electricity of earphone, which also becomes in people's daily life, compares pass
The point of note.
However, if being not connected to the bluetooth of the equipment such as mobile phone, people are not can know that headset batteries in earphone charging
Electricity, it is unclear that the progress of charging, it is inconvenient to use.
Utility model content
In view of the above deficiencies, the technical problem to be solved by the utility model is to provide one kind to have battery dump energy
The bluetooth headset of percentages show function, the bluetooth headset, structure is simple, easily identifies.
In order to solve the above technical problems, the technical solution of the utility model is:
A kind of bluetooth headset, main control chip and battery including electrical connection, further includes: for detecting the remaining battery electricity
The electric quantity detecting circuit of amount, the electric quantity detecting circuit include BQ27421 chip, and the BQ27421 chip passes through I2C bus passes
Defeated detection signal gives the main control chip；For showing multiple LED of the battery dump energy percentage, each LED according to
It is secondary to be embedded in the bluetooth headset hull outside；LED drive circuit, the LED drive circuit respectively with the main control chip and
Each LED electrical connection；The detection signal that the BQ27421 chip transmits is converted into corresponding driving by the main control chip to be believed
Number, and pass through I2C bus transfer gives the LED drive circuit, and the LED of control corresponding number is gone to shine.
Preferred embodiment is that the bluetooth headset includes five LED.
Preferred embodiment is that each LED issues white light.
Preferred embodiment is that the LED drive circuit includes IS31FL3209 driving chip.
Preferred embodiment is that the bluetooth headset further includes the charging interface and charge protector of electrical connection；The bluetooth
Built-in chip type has charging control circuit, and the charging control circuit is electrically connected by PIO pin VCHG and the charge protector
It connects, charging is realized by the PIO pin VBAT connection battery.
Preferred embodiment is that the charging interface is USB interface.
Preferred embodiment is that the charge protector is overcurrent-overvoltage protecting circuit.
Preferred embodiment is that overcurrent-overvoltage protecting circuit includes BQ24314 chip.
After adopting the above technical scheme, the beneficial effects of the utility model are:
It further include electric quantity detecting circuit, multiple due to the bluetooth headset of the utility model, including main control chip and battery
LED and LED drive circuit；Wherein electric quantity detecting circuit includes BQ27421 chip, which passes through I2C bus passes
Defeated detection signal is to main control chip；Plurality of LED can show battery dump energy percentage, and each LED is successively embedded
Bluetooth headset hull outside；Wherein LED drive circuit is electrically connected with main control chip and each LED respectively.Electric quantity detecting circuit detection
Battery dump energy percentage, and will test signal and pass through I2C bus transfer then will test signal to main control chip, main control chip
It is converted into corresponding driving signal, and passes through I2C bus transfer goes the LED of control corresponding number to shine to LED drive circuit.
It allows user intuitively to see battery dump energy percentage, is not necessarily to external Bluetooth equipment, it will be able to know battery dump energy.It can
To see, the bluetooth headset of the utility model has the function of battery dump energy percentages show, it is simple easy to identify, and structure letter
It is single, it is at low cost.
Since bluetooth headset includes five LED；So that battery dump energy is divided into five orders of magnitude, meets user and use habit
It is used.
Since each LED issues white light；It reduces costs.
Detailed description of the invention
Fig. 1 is the functional block diagram of the utility model bluetooth headset；
Fig. 2 is the circuit diagram of embodiment.
Specific embodiment
Understand to remove the purpose of this utility model, technical solution and advantage more, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As depicted in figs. 1 and 2, a kind of bluetooth headset, main control chip and battery including electrical connection, further include electric power detection
Circuit, multiple LED and LED drive circuit；Wherein electric quantity detecting circuit is for detecting battery dump energy, electric quantity detecting circuit
Including BQ27421 chip, BQ27421 chip passes through I2C bus transfer detects signal to main control chip；Wherein each LED can be shown
Battery dump energy percentage is preferably provided with five LED, and each LED is successively embedded in bluetooth headset hull outside, meets using habit
It is used；Wherein LED drive circuit is electrically connected with main control chip and each LED respectively, and preferred embodiment LED drive circuit includes
IS31FL3209 driving chip.The detection signal that BQ27421 chip transmits is converted into corresponding driving signal by main control chip, and
Pass through I2C bus transfer goes the LED of control corresponding number to shine to LED drive circuit.
The bluetooth headset of the utility model, either in use process or in charging process, electric quantity detecting circuit is real
When detect battery dump energy percentage, and be converted to corresponding electric signal transmission to main control chip, main control chip reconvert is pairs of
The driving signal answered, the driving signal are transferred to LED drive circuit by PIO3 pin, and LED drive circuit receives driving letter
After number, then the LED of corresponding number is connected and is shone, allowed user intuitively to see battery dump energy percentage, set without external
It is standby, it will be able to know battery dump energy percentage.Therefore the bluetooth headset of the utility model has battery dump energy percentage
Than display function, because the display methods meets user using inertia, therefore, it is simple easy to identify；And structure configuration is rationally, cost
It is low.
As shown in Fig. 2, bluetooth headset further includes the charging interface and charge protector of electrical connection, charge protector is logical
Bluetooth chip is crossed to charge the battery.The preferred QCC5120 Bluetooth chip of the main control chip of bluetooth headset；It is integrated on the Bluetooth chip
Charging control circuit, the charging control circuit are electrically connected by PIO pin VCHG with charge protector, and PIO pin is passed through
VBAT is electrically connected with battery.Wherein charge protector is overcurrent-overvoltage protecting circuit, preferred overcurrent-overvoltage protecting circuit packet
Include BQ24314 chip；Wherein charging interface is USB interface.
Bluetooth chip passes through I2C bus and LED drive circuit and/or electric quantity detecting circuit transmission telecommunications number, specific benefit
With the pin PIO1 and PIO2 of Bluetooth chip.
As shown in Fig. 2, five LED of the present embodiment, are respectively defined as LED1, LED2, LED3, LED4 and LED5, and
Each LED whitens coloured light, this design reduces costs, and use habit has been further conformed to, without configuring colourama.
As shown in Fig. 2, in this example bluetooth headset battery dump energy percentages show principle are as follows: given by USB interface
When charging bluetooth earphone, then the electricity of electric quantity detecting circuit real-time monitoring bluetooth headset battery passes through I2C bus transfer is remaining
For the corresponding detection signal of electricity percentage to Bluetooth chip, Bluetooth chip passes through I again2C bus transfer light the quantity of LED to
LED drive circuit, LED drive circuit drive the LED conducting of different number, if battery capacity reaches 20%, driving LED1 is bright
It rises, reaches 20%, driving LED1 and LED2, which is lighted ... reaches 100%, then five LED, all light can thus pass through LED point
Bright quantity judges battery dump energy percentage.
The preferred embodiment of the utility model described above, is not intended to limit the utility model, all practical at this
Made any modification within novel spirit and principle, etc. the improvement of same blue-tooth earphone structure etc., should be included in this
Within the protection scope of utility model.
Claims (8)
1. a kind of bluetooth headset, main control chip and battery including electrical connection, which is characterized in that further include:
For detecting the electric quantity detecting circuit of the battery dump energy, the electric quantity detecting circuit includes BQ27421 chip, institute
It states BQ27421 chip and passes through I2C bus transfer detects signal to the main control chip；
For showing that multiple LED of the battery dump energy percentage, each LED are successively embedded in the bluetooth headset shell
External side；
LED drive circuit, the LED drive circuit are electrically connected with the main control chip and each LED respectively；The master control core
The detection signal that the BQ27421 chip transmits is converted into corresponding driving signal by piece, and passes through I2C bus transfer is to described
LED drive circuit goes the LED of control corresponding number to shine.
2. bluetooth headset according to claim 1, which is characterized in that the bluetooth headset includes five LED.
3. bluetooth headset according to claim 1, which is characterized in that each LED issues white light.
4. bluetooth headset according to claim 1, which is characterized in that the LED drive circuit includes that IS31FL3209 drives
Dynamic chip.
5. bluetooth headset according to claim 1, which is characterized in that
The bluetooth headset further includes the charging interface and charge protector of electrical connection；
The main control chip is built-in with charging control circuit, and the charging control circuit passes through PIO pin VCHG and the charging
Circuit electrical connection is protected, charging is realized by the PIO pin VBAT connection battery.
6. bluetooth headset according to claim 5, which is characterized in that the charging interface is USB interface.
7. bluetooth headset according to claim 5, which is characterized in that the charge protector is over-current over-voltage protection electricity
Road.
8. bluetooth headset according to claim 7, which is characterized in that the overcurrent-overvoltage protecting circuit includes BQ24314
Chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163655.7U CN209314006U (en) | 2018-12-21 | 2018-12-21 | A kind of bluetooth headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163655.7U CN209314006U (en) | 2018-12-21 | 2018-12-21 | A kind of bluetooth headset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209314006U true CN209314006U (en) | 2019-08-27 |
Family
ID=67678169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822163655.7U Active CN209314006U (en) | 2018-12-21 | 2018-12-21 | A kind of bluetooth headset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209314006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110830872A (en) * | 2019-12-02 | 2020-02-21 | 广州酷狗计算机科技有限公司 | Wireless earphone |
-
2018
- 2018-12-21 CN CN201822163655.7U patent/CN209314006U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110830872A (en) * | 2019-12-02 | 2020-02-21 | 广州酷狗计算机科技有限公司 | Wireless earphone |
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