CN219876027U - Bluetooth headset circuit and head-mounted Bluetooth headset - Google Patents
Bluetooth headset circuit and head-mounted Bluetooth headset Download PDFInfo
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- CN219876027U CN219876027U CN202320997450.7U CN202320997450U CN219876027U CN 219876027 U CN219876027 U CN 219876027U CN 202320997450 U CN202320997450 U CN 202320997450U CN 219876027 U CN219876027 U CN 219876027U
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- 239000013078 crystal Substances 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 description 13
- 230000005236 sound signal Effects 0.000 description 9
- 238000002955 isolation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses a Bluetooth headset circuit and a headset Bluetooth headset, comprising: bluetooth master control unit, battery module, antenna module, interface that charges, have the chip that charges of shipping mode, the crystal oscillator module, loudspeaker module, the audio line interface, audio line input module and isolator module, the chip that charges is connected to the Bluetooth master control unit, the interface that charges is connected to the input of chip that charges, the input of battery module is connected to the output of chip that charges, the antenna module connects the Bluetooth master control unit, the crystal oscillator module connects the Bluetooth master control unit, the input of loudspeaker module is connected to the output of Bluetooth master control unit, audio line interface connection audio line input module's input, the bluetooth master control unit is connected to audio line interface connection isolator module's input, isolator module's output connects the input of loudspeaker module, low power consumption has the advantage of duration.
Description
Technical Field
The utility model relates to the technical field of Bluetooth headphones, in particular to a Bluetooth headphone circuit and a Bluetooth headphone.
Background
The Bluetooth headset is to apply the Bluetooth technology to the hands-free headset, so that a user can avoid the trouble of annoying wires and can easily talk in various modes. An existing head-mounted Bluetooth headset is provided with an audio line interface, an audio line of a terminal is connected through the audio line interface, an audio signal is input to a Bluetooth chip, the Bluetooth chip is used for playing audio through a loudspeaker, a wired playing mode of the head-mounted Bluetooth headset is achieved, however, the problems of higher power consumption and not long endurance time exist, and the wired playing mode cannot be used under the condition that the Bluetooth chip is powered off.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a Bluetooth headset circuit and a Bluetooth headset, which can solve the problems that the Bluetooth headset has higher power consumption, does not have long endurance time and cannot use a wired playing mode under the condition of power failure.
According to an embodiment of the first aspect of the present utility model, a bluetooth headset circuit includes:
a Bluetooth main control unit;
the Bluetooth charging system comprises a charging interface and a charging chip with a shipping mode, wherein the Bluetooth main control unit is connected with the charging chip, and the input end of the charging chip is connected with the charging interface;
the output end of the charging chip is connected with the input end of the battery module;
the antenna module is connected with the Bluetooth main control unit;
the crystal oscillator module is connected with the Bluetooth main control unit;
the output end of the Bluetooth main control unit is connected with the input end of the loudspeaker module;
an audio line interface and an audio line input module, the audio line interface being connected to an input of the audio line input module, the output end of the audio line input module is connected with the Bluetooth main control unit;
and the audio line interface is connected with the input end of the isolating switch module, and the output end of the isolating switch module is connected with the input end of the loudspeaker module.
The Bluetooth headset circuit according to the embodiment of the first aspect of the utility model has at least the following beneficial effects:
the Bluetooth main control unit receives and transmits signals through the antenna module, performs wireless communication with the terminal, and under the condition that the audio line interface is inserted into the audio line, audio signals input by the audio line interface are input to the Bluetooth main control unit through the audio line input module, and the Bluetooth main control unit controls the loudspeaker module to play audio. The battery module charges through the chip that charges and interface connection that charges, and when the chip that charges got into shipping mode, battery module stopped the power supply, reduces the consumption, increases duration, in the condition that bluetooth master control unit loses the power, audio signal that audio line interface input directly inputs loudspeaker module through isolator module and plays, realizes wired broadcast function.
According to some embodiments of the utility model, the Bluetooth master control unit further comprises a noise reduction unit, wherein an output end of the noise reduction unit is connected with an input end of the Bluetooth master control unit.
According to some embodiments of the utility model, the noise reduction unit comprises a feedforward microphone module and a feedback microphone module, wherein an output end of the feedforward microphone module is connected with an input end of the Bluetooth main control unit, and an output end of the feedback microphone module is connected with an input end of the Bluetooth main control unit.
According to some embodiments of the utility model, the Bluetooth master control unit further comprises a touch module, wherein an output end of the touch module is connected with an input end of the Bluetooth master control unit.
According to some embodiments of the utility model, the Bluetooth device further comprises a display module, and an output end of the Bluetooth main control unit is connected with a control end of the display module.
According to some embodiments of the utility model, the bluetooth communication device further comprises a communication module, wherein an output end of the communication module is connected with an input end of the bluetooth master control unit.
According to some embodiments of the utility model, the Bluetooth master control unit further comprises a key module, wherein an output end of the key module is connected with an input end of the Bluetooth master control unit.
According to some embodiments of the utility model, the speaker module comprises an amplifier chip and a speaker, wherein an output end of the Bluetooth main control unit is connected with an input end of the amplifier chip, and an output end of the amplifier chip is connected with the speaker.
According to some embodiments of the utility model, the battery protection device further comprises a battery protection module, the charging interface is connected with an input end of the battery protection module, and an output end of the battery protection module is connected with an input end of the charging chip.
The Bluetooth headset according to the embodiment of the second aspect of the utility model comprises the Bluetooth headset circuit.
The Bluetooth headset according to the embodiment of the second aspect of the utility model has at least the following beneficial effects:
the Bluetooth main control unit receives and transmits signals through the antenna module, performs wireless communication with the terminal, and under the condition that the audio line interface is inserted into the audio line, audio signals input by the audio line interface are input to the Bluetooth main control unit through the audio line input module, and the Bluetooth main control unit controls the loudspeaker module to play audio. The battery module charges through the chip that charges and interface connection that charges, and when the chip that charges got into shipping mode, battery module stopped the power supply, reduces the consumption, increases duration, in the condition that bluetooth master control unit loses the power, audio signal that audio line interface input directly inputs loudspeaker module through isolator module and plays, realizes wired broadcast function.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a functional block diagram of the present utility model;
FIG. 2 is a circuit diagram of an isolating switch module of the present utility model;
FIG. 3 is a circuit diagram of an audio line input module of the present utility model;
FIG. 4 is a circuit diagram of a feed forward microphone module of the utility model;
FIG. 5 is a circuit diagram of a feedback microphone module of the present utility model;
FIG. 6 is a circuit diagram of a call module according to the present utility model;
fig. 7 is a circuit diagram of a battery protection module, a charging chip, and a battery module of the present utility model.
Reference numerals:
a Bluetooth main control unit 100,
Charging interface 200, charging chip 210, battery module 220,
Antenna module 300, crystal oscillator module 310,
Amplifier chip 400, horn 410,
An audio line input module 500, a disconnector module 510,
A feedforward microphone module 600, a feedback microphone module 610,
Touch module 700, display module 710,
A call module 800,
The key module 900.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
A bluetooth headset circuit according to an embodiment of the present utility model is described below with reference to fig. 1 to 7.
As shown in fig. 1, a bluetooth headset circuit according to an embodiment of the first aspect of the present utility model includes: the Bluetooth main control unit 100, the battery module 220, the antenna module 300, the interface 200 charges, the chip 210 that charges that has shipping mode, the crystal oscillator module 310, the loudspeaker module, the audio line interface, audio line input module 500 and isolator module 510, the chip 210 charges is connected to the Bluetooth main control unit 100, the interface 200 charges is connected to the input of chip 210 charges, the input of battery module 220 is connected to the output of chip 210 charges, the bluetooth main control unit 100 is connected to antenna module 300, the crystal oscillator module 310 connects the Bluetooth main control unit 100, the input of loudspeaker module is connected to the output of bluetooth main control unit 100, the input of audio line input module 500 is connected to the audio line interface, the input of isolator module 510 is connected to the audio line interface, the input of loudspeaker module is connected to the output of isolator module 510.
The bluetooth main control unit 100 receives and transmits signals through the antenna module 300, performs wireless communication with a terminal, and under the condition that an audio line is inserted into an audio line interface, audio signals input by the audio line interface are input into the bluetooth main control unit 100 through the audio line input module 500, and the bluetooth main control unit 100 controls a loudspeaker module to play audio. The battery module 220 is used for supplying power, the battery module 220 is connected with the charging interface 200 through the charging chip 210, when the charging chip 210 enters a shipping mode, the battery module 220 stops supplying power, power consumption is reduced, endurance time is increased, under the condition that the Bluetooth main control unit 100 is powered off, an audio signal input by an audio line interface is directly input to the loudspeaker module through the isolating switch module 510 for playing, and a wired playing function is realized.
Note that, the bluetooth master unit 100 employs a bluetooth chip having a model number BES 2700H. As shown in fig. 2, fig. 2 is a circuit diagram of the isolation switch module 510, the isolation switch module 510 includes an isolation switch U15 having a model GSW550, fig. 3 is a circuit diagram of the audio line input module 500, and the audio line input module 500 includes an ADC U9 having a model ES 7243E.
As shown in fig. 1, the noise reduction unit further includes a feedforward microphone module 600 and a feedback microphone module 610, as shown in fig. 4 to 5, fig. 4 is a circuit diagram of the feedforward microphone module 600, fig. 5 is a circuit diagram of the feedback microphone module 610, an output end of the feedforward microphone module 600 is connected with an input end of the bluetooth master control unit 100, an output end of the feedback microphone module 610 is connected with an input end of the bluetooth master control unit 100, the feedforward microphone module 600 and the feedback microphone module 610 collect noise in the environment and feed back noise signals to the bluetooth master control unit 100, and the bluetooth master control unit 100 performs noise reduction through an algorithm.
As shown in fig. 1, the portable electronic device further comprises a touch module 700, wherein an output end of the touch module 700 is connected with an input end of the bluetooth main control unit 100, the touch module 700 is used for sensing touch operation of a user and feeding back a touch signal to the bluetooth main control unit 100, and the user can control the charging chip 210 to enter a shipping mode through the touch module 700, so that the portable electronic device is convenient to use.
As shown in fig. 1, the portable electronic device further includes a display module 710, an output end of the bluetooth main control unit 100 is connected to a control end of the display module 710, the display module 710 is an LED lamp, and the bluetooth main control unit 100 displays an operation state of the headset by controlling the LED lamp to be turned on or off.
The communication module 800 is further included, as shown in fig. 6, fig. 6 is a circuit diagram of the communication module 800, an output end of the communication module 800 is connected to an input end of the bluetooth master control unit 100, and the bluetooth master control unit 100 picks up communication sound through the communication module 800.
As shown in fig. 1, the earphone also comprises a key module 900, wherein the output end of the key module 900 is connected with the input end of the bluetooth main control unit 100, and a user performs earphone startup and shutdown control through the key module 900.
As shown in fig. 1, the speaker module includes an amplifier chip 400 and a speaker 410, an output end of the bluetooth master control unit 100 is connected to an input end of the amplifier chip 400, an output end of the amplifier chip 400 is connected to the speaker 410, an analog signal output by the bluetooth master control unit 100 is amplified by the amplifier chip 400 and then is input to the speaker 410 for playing, and a model of the amplifier chip 400 is SGM4917A.
The battery protection module is further included, the charging interface 200 is connected with an input end of the battery protection module, an output end of the battery protection module is connected with an input end of the charging chip 210, an output end of the charging chip 210 is connected with an input end of the battery module 220, the battery protection module provides overcurrent and overvoltage protection for the battery module 220, as shown in fig. 7, fig. 7 is a circuit diagram of the battery protection module, the charging chip 210 and the battery module 220, the battery protection module comprises a battery protection chip U6 with a model CS5801T, and the charging chip 210 adopts a charging management chip U4 with a model SGM 41513.
The Bluetooth headset according to the embodiment of the utility model comprises the Bluetooth headset circuit.
The bluetooth main control unit 100 receives and transmits signals through the antenna module 300, performs wireless communication with a terminal, and under the condition that an audio line is inserted into an audio line interface, audio signals input by the audio line interface are input into the bluetooth main control unit 100 through the audio line input module 500, and the bluetooth main control unit 100 controls a loudspeaker module to play audio. The battery module 220 charges through the chip 210 that charges and being connected of interface 200 that charges, when chip 210 that charges gets into shipping mode, battery module 220 stops the power supply, reduces the consumption, increases the duration, in the condition that bluetooth master control unit 100 loses the power, the audio signal of audio line interface input directly inputs the loudspeaker module through isolator module 510 and plays, realizes wired broadcast function.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. Bluetooth headset circuit, its characterized in that includes:
a Bluetooth master control unit (100);
the Bluetooth charging system comprises a charging interface (200) and a charging chip (210) with a shipping mode, wherein the Bluetooth main control unit (100) is connected with the charging chip (210), and the input end of the charging chip (210) is connected with the charging interface (200);
the output end of the charging chip (210) is connected with the input end of the battery module (220);
an antenna module (300), wherein the antenna module (300) is connected with the Bluetooth main control unit (100);
the crystal oscillator module (310), the crystal oscillator module (310) is connected with the Bluetooth main control unit (100);
the output end of the Bluetooth main control unit (100) is connected with the input end of the loudspeaker module;
an audio line interface and an audio line input module (500), the audio line interface being connected to an input of the audio line input module (500), the output end of the audio line input module (500) is connected with the Bluetooth main control unit (100);
the audio line interface is connected with the input end of the isolating switch module (510), and the output end of the isolating switch module (510) is connected with the input end of the loudspeaker module.
2. The bluetooth headset circuit of claim 1, wherein: the Bluetooth master control unit further comprises a noise reduction unit, wherein the output end of the noise reduction unit is connected with the input end of the Bluetooth master control unit (100).
3. The bluetooth headset circuit of claim 2, wherein: the noise reduction unit comprises a feedforward microphone module (600) and a feedback microphone module (610), wherein the output end of the feedforward microphone module (600) is connected with the input end of the Bluetooth main control unit (100), and the output end of the feedback microphone module (610) is connected with the input end of the Bluetooth main control unit (100).
4. The bluetooth headset circuit of claim 1, wherein: the Bluetooth master control unit further comprises a touch module (700), wherein the output end of the touch module (700) is connected with the input end of the Bluetooth master control unit (100).
5. The bluetooth headset circuit of claim 1, wherein: the Bluetooth master control unit further comprises a display module (710), and the output end of the Bluetooth master control unit (100) is connected with the control end of the display module (710).
6. The bluetooth headset circuit of claim 1, wherein: the Bluetooth communication device further comprises a communication module (800), wherein the output end of the communication module (800) is connected with the input end of the Bluetooth main control unit (100).
7. The bluetooth headset circuit of claim 1, wherein: the Bluetooth master control unit further comprises a key module (900), wherein the output end of the key module (900) is connected with the input end of the Bluetooth master control unit (100).
8. The bluetooth headset circuit of claim 1, wherein: the loudspeaker module comprises an amplifier chip (400) and a loudspeaker (410), wherein the output end of the Bluetooth main control unit (100) is connected with the input end of the amplifier chip (400), and the output end of the amplifier chip (400) is connected with the loudspeaker (410).
9. The bluetooth headset circuit of claim 1, wherein: the battery protection device further comprises a battery protection module, wherein the charging interface (200) is connected with the input end of the battery protection module, and the output end of the battery protection module is connected with the input end of the charging chip (210).
10. A bluetooth headset comprising a bluetooth headset circuit according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320997450.7U CN219876027U (en) | 2023-04-26 | 2023-04-26 | Bluetooth headset circuit and head-mounted Bluetooth headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320997450.7U CN219876027U (en) | 2023-04-26 | 2023-04-26 | Bluetooth headset circuit and head-mounted Bluetooth headset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219876027U true CN219876027U (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320997450.7U Active CN219876027U (en) | 2023-04-26 | 2023-04-26 | Bluetooth headset circuit and head-mounted Bluetooth headset |
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| Country | Link |
|---|---|
| CN (1) | CN219876027U (en) |
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- 2023-04-26 CN CN202320997450.7U patent/CN219876027U/en active Active
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