CN202750205U - A bluetooth headset - Google Patents

Abstract

The utility model relates to a bluetooth headset, including bluetooth control module, loudspeaker SPK, antenna module, button module and power module, antenna module and bluetooth control module's SMA interface hookup, button module and bluetooth control module hookup. The loudspeaker SPK is connected with the Bluetooth control module through a power amplifier circuit module, an IN interface of the power amplifier circuit is connected with a Sperker interface of the Bluetooth control module, a power supply module is formed by sequentially connecting a USB interface module, a charging circuit module and a battery, and the power supply module is connected with a Pow interface of the Bluetooth control module through the battery; the key module consists of a switch key SW1, a volume increasing switch key SW2, a volume decreasing switch key SW3, a multifunctional switch key SW4 and resistors R1, R21, R8, R9 and R10; the utility model has the advantages of reduce the quantity of function control key, reduce bluetooth headset's volume greatly, reduce the probability of user's maloperation.

Description

A bluetooth headset

technical field

The utility model relates to the technical field of wireless earphones, in particular to a bluetooth earphone.

Background technique

With the development of science and technology, it is more and more popular to equip earphones with microphones. This type of earphones with microphones is often used in walkie-talkies, mobile phones, computers and other equipment. Users can listen to the sound and transmit the sound signal at the same time.

Especially for Bluetooth earphones used on portable digital devices, the earphones are not limited by the length of the cable when they are connected to portable digital devices through Bluetooth to listen to audio information, and are small in size and more convenient to use and carry. In order to allow users to directly control some simple functions of portable digital devices on the Bluetooth headset (such as audio playback, pause, volume adjustment, phone function connection and hanging up), the corresponding settings need to be set on the small Bluetooth headset. Function control keys. However, due to the small size and easy-to-carry design characteristics of the Bluetooth headset itself, multiple function control keys are set on the surface of the Bluetooth headset, which is easy for users to make mistakes during use. And too many function control keys are not conducive to reducing the size of the product.

To sum up, there is still a bluetooth headset that is small in size, has few function control keys, and is not prone to erroneous operations.

Utility model content

The technical problem to be solved by the utility model lies in the disadvantages of the currently used bluetooth earphones, such as many function control buttons, large volume, and prone to wrong operation, etc., and a new bluetooth earphone is designed.

The utility model realizes above-mentioned object through following technical scheme:

Aiming at the technical shortcomings of the existing bluetooth earphones, a bluetooth earphone is redesigned. Its structure includes a bluetooth control module, a speaker SPK, an antenna module, a button module and a power supply module. The antenna module is connected to the SMA interface of the bluetooth control module. Bluetooth control module connection. The loudspeaker SPK is connected with the bluetooth control module through the power amplifier circuit module, the IN interface of the power amplifier circuit is connected with the Sperker interface of the bluetooth control module, and the described power supply module is connected successively by the USB interface module, the charging circuit module and the battery. The power supply module is connected with the Pow interface of the Bluetooth control module through the battery; the button module is composed of switch button SW1, volume increase switch button SW2, volume down switch button SW3, multi-function switch button SW4 and resistors R1, R21, Composed of R8, R9 and R10; one end of the switch button SW1 is connected to the VBAT port of the Bluetooth control module, and the other end is connected to the ON/OFF port of the Bluetooth control module through a resistor R21, between the resistor R21 and the ON/OFF port of the Bluetooth control module Through resistor R1 and ground; one end of the volume up switch button SW2, volume down switch button SW3 and multi-function switch button SW4 is respectively connected to the VDD port of the Bluetooth control module, and the other end of the volume up switch button SW2 is connected to the VDD port through the resistor R8. The VR+ port of the Bluetooth control module is connected, the other end of the volume down switch SW3 is connected with the VR- port of the Bluetooth control module through a resistor R9, and the other end of the multi-function switch SW4 is connected with the PIO port of the Bluetooth control module through a resistor R10.

A microphone is provided to connect with the Mic interface of the bluetooth control module.

A charging indicator module is provided to connect with the PowLED interface of the charging circuit module.

A working indicator light module is provided to connect with the WorkLED interface of the bluetooth control module.

The key module is a commonly used multi-function switch key SW4 control circuit.

To realize the single-press function, the Bluetooth control module provides PIO to detect the key. When the multi-function switch button SW4 is single-pressed, the PIO port is pulled to a high level. At this time, the Bluetooth control module detects a high level of the PIO and records the time. When it reaches 500mS, the PIO port becomes low and does not become high after 500mS, which is a single press of the button.

Double button function, when the multi-function switch button SW4 is pressed, the PIO port is pulled to a high level, at this time the Bluetooth control module detects a high level of the PIO, and records the time. When it reaches 500mS, release the button, the PIO port becomes low, press the multi-function switch SW4 again within 500mS, PIO is pulled high again, when it reaches 500mS, release the button again, the PIO port becomes low again, and exceeds 500mS, the PIO port does not rise again, and the double key function is realized at this time.

Three key functions, when the multi-function switch button SW4 is pressed, the PIO port is pulled to a high level, at this time the Bluetooth control module detects a high level of the PIO, and records the time. When it reaches 500mS, release the button, the PIO port becomes low, press the multi-function switch button SW4 again within 500mS, PIO is pulled high again, when it reaches 500mS, release the button again, the PIO port becomes low again, at 500mS Press the multi-function switch button SW4 for the third time, and the PIO is pulled high again. When it reaches 500mS, release the button again, and the PIO port becomes low again, and after 500mS, the PIO port does not become high again. Second key function.

When these three button functions are realized, they can correspond to different button functions, such as single pressing can realize answering calls, hanging up, double pressing can realize previous song, triple pressing can realize functions such as next song.

Compared with the prior art, the utility model has the beneficial effects of:

Reduce the number of function control keys and greatly reduce the size of the Bluetooth headset. Reduce the chance of user error operation.

Description of drawings

FIG. 1 is a schematic structural diagram of a circuit module in Embodiment 1 of the present utility model;

Fig. 2 is a circuit diagram of a button module according to an embodiment of the present invention.

Detailed ways

Embodiment one: as shown in Figure 1, the structure of this embodiment includes bluetooth control module, loudspeaker SPK, antenna module, key module and power supply module, antenna module is connected with the SMA interface of bluetooth control module, key module is connected with bluetooth control module . The loudspeaker SPK is connected with the bluetooth control module through the power amplifier circuit module, the IN interface of the power amplifier circuit is connected with the Sperker interface of the bluetooth control module, and the described power supply module is connected successively by the USB interface module, the charging circuit module and the battery. The power supply module is connected with the Pow interface of the Bluetooth control module through the battery; the button module is composed of switch button SW1, volume increase switch button SW2, volume down switch button SW3, multi-function switch button SW4 and resistors R1, R21, Composed of R8, R9 and R10; one end of the switch button SW1 is connected to the VBAT port of the Bluetooth control module, and the other end is connected to the ON/OFF port of the Bluetooth control module through a resistor R21, between the resistor R21 and the ON/OFF port of the Bluetooth control module Through resistor R1 and ground; one end of the volume up switch button SW2, volume down switch button SW3 and multi-function switch button SW4 is respectively connected to the VDD port of the Bluetooth control module, and the other end of the volume up switch button SW2 is connected to the VDD port through the resistor R8. The VR+ port of the Bluetooth control module is connected, the other end of the volume down switch SW3 is connected with the VR- port of the Bluetooth control module through a resistor R9, and the other end of the multi-function switch SW4 is connected with the PIO port of the Bluetooth control module through a resistor R10.

A microphone is provided to connect with the Mic interface of the bluetooth control module.

A charging indicator module is provided to connect with the PowLED interface of the charging circuit module.

A working indicator light module is provided to connect with the WorkLED interface of the bluetooth control module.

The key module is a commonly used multi-function switch key SW4 control circuit.

Claims (4)

1. a bluetooth earphone, its structure comprises bluetooth control module, loudspeaker SPK, antenna module, button module and power supply module, antenna module is connected with the SMA interface of bluetooth control module, and button module is connected with bluetooth control module, it is characterized in that The loudspeaker SPK is connected with the bluetooth control module through the power amplifier circuit module, the IN interface of the power amplifier circuit is connected with the Sperker interface of the bluetooth control module, and the described power supply module is connected successively by the USB interface module, the charging circuit module and the battery, and the described The power supply module is connected with the Pow interface of the bluetooth control module through the battery; the button module is composed of switch button SW1, volume increase switch button SW2, volume down switch button SW3, multi-function switch button SW4 and resistors R1, R21, R8, Composed of R9 and R10; one end of the switch button SW1 is connected to the VBAT port of the Bluetooth control module, the other end is connected to the ON/OFF port of the Bluetooth control module through a resistor R21, and the resistor R21 is connected to the ON/OFF port of the Bluetooth control module through a resistor R1 and ground; one end of the volume up switch button SW2, the volume down switch button SW3 and the multi-function switch button SW4 are respectively connected to the VDD port of the Bluetooth control module, and the other end of the volume up switch button SW2 is connected to the Bluetooth control via a resistor R8 The VR+ port of the module is connected, the other end of the volume down switch button SW3 is connected to the VR- port of the Bluetooth control module through a resistor R9, and the other end of the multi-function switch button SW4 is connected to the PIO port of the Bluetooth control module through a resistor R10. 2. The bluetooth earphone according to claim 1, characterized in that a microphone is connected to the Mic interface of the bluetooth control module. 3. The bluetooth earphone according to claim 2, characterized in that a charging indicator module is provided to connect with the PowLED interface of the charging circuit module. 4. The bluetooth headset according to claim 3, characterized in that a work indicator module is provided with a WorkLED interface connected with the bluetooth control module.

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