WO2016034097A1

WO2016034097A1 - Earphones having modular control board

Info

Publication number: WO2016034097A1
Application number: PCT/CN2015/088718
Authority: WO
Inventors: 陈�峰; 胡静
Original assignee: 王玮冰
Priority date: 2014-09-04
Filing date: 2015-09-01
Publication date: 2016-03-10
Also published as: CN204031416U

Abstract

Provided are earphones having a modular control board, comprising a main audio cable (1); one end of the main audio cable (1) is connected to an audio plug (2); the other end of the main audio cable (1) branches and is connected to a left earbud wire (3) and a right earbud wire (4); the end sections of the left earbud wire (3) and right earbud wire (4) are connected to a left earbud (5) and a right earbud (6), respectively; the left earbud wire (3) is provided with a main control board (7); the main control board (7) is internally provided with a microphone and a wired remote control chip; the front of the main control board (7) is provided with a volume increase button (7.1), a volume decrease button (7.2), and a sound signal access button (7.3); the back of the main control board (7) is connected to a plurality of free boards (8); the plurality of free boards (8) is removably stacked and connected; the back of the main control board (7) is provided with an audio-in jack. The extensibility of headset functions is greatly increased, while at the same time, the simple and stylish forms of existing headsets are maintained; user requirements are largely satisfied while materials are conserved, and the invention is green and environmentally friendly.

Description

Headphones with modular control panel

Technical field

The invention relates to the technical field of earphones, in particular to an expandable function earphone with a modular control board, which not only realizes the original headset function, but also realizes various kinds by detachably connecting one or more modular control panels. Additional features.

Background technique

Headphones, or headsets with microphones, are indispensable peripheral audio devices in modern electronic systems, especially portable electronic devices such as mobile phones, tablets, and the like. Traditional headset with audio plug, main audio cable (including microphone cable MIC, ground GND, left earbud HPL and right earbud HPR), left and right earbuds and left and right earbuds, and control attached to one of the earbuds Board, this type of earphone or headset is the most standard and traditional design, it is widely used. When it is used, it only needs to insert the audio plug into the electronic device, and the earplug can be inserted into the ear.

However, we often find that a single control board is very inconvenient in use. For example, when adding new functions, it is necessary to replace the whole set of headphones, and the replaced headphones with new functions tend to be bulky, carry and replace. Inconvenient troubles cannot satisfy people's demand for multifunctional electronic devices.

Summary of the invention

SUMMARY OF THE INVENTION The object of the present invention is to overcome the above-mentioned drawbacks and to provide an earphone with a modular control board which is convenient for expanding new functions, low in cost, simple in use, and capable of greatly satisfying user requirements.

To achieve the above objective, the earphone with a modular control board designed by the present invention comprises a main audio line, one end of the main audio line is connected with an audio plug, and the other end of the main audio line is connected with a left earphone line and a right earplug. a line, the left earplug wire and the end of the right earplug wire are respectively connected with a left earplug And a right earplug, wherein the left earphone wire is provided with a main control board, the main control board has a built-in microphone and a wire controller chip, and the front surface of the main control board is provided with a volume increase button, a volume decrease button and a sound signal connection. In the key input, a plurality of free boards are connected to the back surface of the main control board, and the plurality of free boards are detachably connected in a stack, and the back side of the main control board is provided with an audio sound hole.

In the above technical solution, the main control board and the free board, and the plurality of free boards are connected by pins and jacks.

In the above technical solution, a plurality of jack electrodes are disposed on the back of the main control board, and the plurality of jack electrodes are respectively connected to a ground line GND, a microphone line MIC, an earphone line HPL, and a button C on the main control board. One side of the free plate is a plurality of electrode pins, and the other side is a plurality of electrode insertion holes, and the electrode pins on one side of the free plate are connected to the socket electrodes on the back surface of the main control board.

In the above technical solution, the main control board and the free board, and the plurality of free boards are connected by a positive magnet and a negative magnet.

In the above technical solution, the upper and lower portions of the back surface of the main control board are respectively provided with two spaced electrodes, and the upper and lower portions of the front and back sides of the free board are respectively provided with two spaced electrodes. The magnets of opposite magnetic poles are disposed at corresponding positions on the front and back sides of the free plate.

In the above technical solution, the free board is formed by splicing a plurality of daughter boards.

In the above technical solution, one side of the sub-board is provided with pins, and opposite sides of adjacent sub-boards of the sub-board are provided with jacks, and the adjacent sub-boards are realized by pins and jacks. Mechanical and electrical connections.

In the above technical solution, the free plate is provided with an audio through hole.

The earphone with modular control board designed by the invention has a control board attached to the left earphone line, the control board is the main control board, and the extended function board on the main control board is a free board, and other parts of the earphone and the traditional earphone Similar, including left and right earplugs, audio cable, audio plug, audio plug can be a standard round plug, or USB plug, or other such as 8-pin lightning plug, etc., master There are three buttons on the front of the board, that is, the volume is increased, the sound signal is connected to the button, the volume is reduced, the main control board is provided with a microphone and a line controller chip, and the back of the main control board has a sound hole, the hole is non- The through hole is provided with a sound hole at the corresponding position of each free plate, and the hole is a through hole for the purpose of allowing sound to enter the sound hole of the main control board when superimposed.

Between the main control board and the free board of the present invention, and between the adjacent free boards, mechanical connection or electrical connection is made through the male and female pins and the jacks, or the positive and negative poles are opposite to the magnets. The back surface of the main control board and the front and back sides of each free board have two oppositely facing square electrodes, which are electrically shorted inside the board, and are used to realize the relationship between the main control board and the free board. The internal circuits are interconnected to achieve various preset functions. Two magnets with opposite magnetic poles are arranged above and below each free plate, so that a plurality of free plates can be superposed and fastened together, and mechanical connection is realized, and the electrodes on the inner surface of the phase-locking plates are short-circuited to realize electricity. connection.

The invention realizes diversified use of the earphone: 1) when it is necessary to add other multi-purpose functions of the headset, it is only necessary to embed a free board having a corresponding function without replacing the whole pair of earphones; 2) the free board can be different in different Reuse on the headset; 3) The function of the free board is not limited. For example, the electronic board is provided with an electronic functional sensor, and the mechanical function is expandable, such as increasing the thickness of the entire control board, and the electrode is simply passed through. Such mechanical functions can also achieve a decorative increase, such as the outer layer of the outer layer of the free plate can be without electrodes to increase the appearance of the appearance and so on. 4) The electrical interface realized by the multiple electrodes on the board can be general or standardized, analog or digital interface, as long as each board is equipped with a corresponding chip or circuit.

The invention modularizes the main control board and the free board of the headset, greatly increases the expandability of the function of the headset, and maintains the simple fashion form of the existing headset, and the free board can be flexibly increased or decreased, and the function is very good. Scalability greatly meets the needs of users, and saves materials and is environmentally friendly.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention;

2 is a schematic view showing a split structure of the main control board and the free board of the present invention after being separated;

Figure 3 is a schematic structural view of a free plate of the present invention;

In the figure: 1-main audio cable; 2-audio plug; 3-left earbud wire; 4-right earbud wire; 5-left earplug; 6-right earplug; 7-main control board (7.1-volume increase key; 7.2- Volume reduction button; 7.3-sound signal access button); 8-free board.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

The earphone with a modular control board as shown in FIG. 1 includes a main audio line 1, and one end of the main audio line 1 is connected with an audio plug 2, and the other end of the main audio line 1 is connected with a left earphone line 3 and a right earplug line. 4, the left earplug wire 3 and the right earplug wire 4 are respectively connected with a left earplug 5 and a right earplug 6, and the left earphone wire 3 is provided with a main control board 7, and the main control board 7 has a microphone and a wire controller chip. The front surface of the main control board 7 is provided with a volume increase key 7.1, a volume decrease key 7.2 and a sound signal access key 7.3, and a plurality of free boards 8 are connected to the back surface of the main control board 7, and a plurality of free boards 8 are detachably connected and connected. The back side of the main control board 7 is provided with an entrance hole, and the free board 8 is provided with an entrance through hole, and the entrance through hole on the free board 8 communicates with the entrance hole of the back of the main control board 7.

The main control board 7 and the free board, and the plurality of free boards 8 are connected by pins and jacks. A plurality of jack electrodes are disposed on the back of the main control board 7, and the plurality of jack electrodes are respectively connected to the ground line GND, the microphone line MIC, the earphone line HPL and the button C on the main control board 7, and one side of the free board 8 is One electrode pin and the other side are a plurality of electrode sockets, and the electrode pins on one side of the free board 8 are connected to the jack electrodes on the back side of the main control board 7.

The main control board 7 and the free board, and the plurality of free boards 8 are connected by a positive magnet and a negative magnet.

The upper and lower portions of the back surface of the main control board 7 are each provided with two spaced electrodes, free plates The upper and lower portions of the front and back sides of the 8 are provided with two spaced-apart electrodes, and the front and back surfaces of the free plate 8 are provided with magnets having opposite magnetic poles. The free board 8 is formed by splicing a plurality of daughter boards. One side of the sub-board is provided with a pin, and the other side of the sub-board is provided with a jack, and mechanical and electrical connections are made between the adjacent sub-boards through pins and jacks.

The utility model expands the free board to realize the application example of multi-functional expansion:

1. The main control board 7 realizes the functions required for the traditional operation of the headset. When the call is made, press the sound signal access key 7.3 of the main control board 7 or the BTc key to answer the incoming call, press the volume increase key BT+7.1, the volume decrease key. BT-7.2 adjusts the volume of the earbuds and can also listen to music through earbuds. Therefore, in the case of no free board, the entire earphone can realize the function of a simple traditional earphone.

2, free board 8 built-in Bluetooth headset module, and Bluetooth headset module in addition to earplugs and microphone, with all the components of traditional Bluetooth headset such as battery, power management, Bluetooth transceiver and audio processing. The four electrodes on the free board are defined as the MIC electrode, the GND electrode, the HPL electrode and the button C electrode. They are respectively connected to the microphone input port of the Bluetooth earphone, the GND input port, the output drive port of the earplug and the control button inside the free board. Input port. These four electrodes will be electrically connected to the same name of the main control board by the electrical connection between the board, MIC line (microphone line), GND line (ground line), HPL line (left ear line), and answer button C line. Therefore, the main control board and the free board form a wired headset that forms a complete Bluetooth headset. When the entire headset is inserted into the smart electronic device, it can be a simple traditional wired headset, with or without the main electronic device. Start the Bluetooth headset, press the button C multiple times, stipulate 3 times, pass to the Bluetooth headset, after being recognized, the Bluetooth headset starts, that is, the corresponding microphone input earphone output is turned on to realize the call function. When off, you can also manually press the button C multiple times, the Bluetooth headset cuts off the corresponding microphone input and earphone output, and turns off the Bluetooth headset.

3. The free board 8 is an additional module with built-in sensors (such as temperature, humidity, pressure, gas, light, motion, etc.) and a multi-wire controller. The four electrodes on the same board are defined as the MIC electrode, the GND electrode, the HPL electrode, and the button C electrode. They are connected to the multi-line controller on the board The single-wire data input, the ground wire of the board, the empty connection and the button detection and control circuit of the on-board sensor, the same four electrodes will be electrically connected to the audio cable of the same name on the main control board through the electrical connection between the boards, the MIC line ( Microphone cable), GND cable (ground wire), HPL cable (left earphone cable), and answer button C cable. The sensor and the multi-line controller can be connected by a standard multi-wire interface such as I2C/SPI, and the multi-line controller converts the I2C/SPI multi-line digital communication protocol into a single-line digital communication protocol. The corresponding interface communication at the other end of the MIC electrode completes the data exchange. Similarly, the main control board, the Bluetooth headset free board and the sensor free board layer are stacked to form a complete wired headset with Bluetooth headset and sensor. When the whole earphone is inserted into the smart electronic device, it can be a simple traditional wired cable. The earphone can activate the Bluetooth earphone when the main electronic device is inserted or not inserted, and can be used when the main electronic device is inserted or not inserted. For example, when the key C is pressed for a long time, the key detection circuit on the sensor board recognizes the communication, and then starts the communication. The interface circuit can exchange data with the main electronic device or the Bluetooth headset (assuming that the Bluetooth headset has a multi-wire controller) through the MIC electrode and the internal MIC line to realize the upload of the sensor data. To stop the sensor, press button C several times to turn it off.

4. Free board 8 is another module with built-in backup battery and power management. When adding one electrode VDD, power sharing on each board can be realized. For example, digital control can be realized by MIC electrode, and HPL electrode can be used. The battery is charged, and after power management, the output VDD is used for the circuits on each board.

5. The free board 8 is an additional module with built-in FM radio. The internal control and connection are similar to the free board of the above Bluetooth headset.

6. The electrodes on the free board 8 can be further added with a single-wire control interface (such as the 1-Wire protocol) or multiple multi-wire control interfaces (such as the I2C/SPI protocol) to implement data transfer between the boards without having to Transfer through the MIC line.

7. The same applies to changing the electrodes on the board of the above various application examples to the pin/jack electrodes.

It is used to realize the connection between the various free boards 8 to be expanded, and more combinations can realize each Applications.

The contents not described in detail in the present specification belong to the prior art well known to those skilled in the art.

Claims

An earphone with a modular control board, comprising a main audio line (1), one end of the main audio line (1) is connected with an audio plug (2), and the other end of the main audio line (1) is connected with a branch a left earbud wire (3) and a right earplug wire (4), and the left earplug wire (3) and the right earplug wire (4) are respectively connected with a left earplug (5) and a right earplug (6), which are characterized in that The left earphone cord (3) is provided with a main control board (7), the main control board (7) has a built-in microphone and a line controller chip, and the front side of the main control board (7) is provided with an increase in volume a key (7.1), a volume reduction key (7.2), and a sound signal access key (7.3), and a plurality of free boards (8) are connected to the back of the main control board (7), and the plurality of free boards (8) The connection is detachably connected, and the back surface of the main control board (7) is provided with an entrance hole.
The earphone with a modular control board according to claim 1, wherein the main control board (7) and the free board, and the plurality of free boards (8) are connected by pins and jacks. .
The earphone with a modular control board according to claim 2, wherein a plurality of jack electrodes are disposed on the back of the main control board (7), and the plurality of jack electrodes are respectively connected to the main control board ( 7) a ground wire, a microphone wire, an earplug wire and a button, a side of the free plate (8) is a plurality of electrode pins, and the other side of the free plate (8) is a plurality of electrode sockets. An electrode pin on one side of the free board (8) is connected to a jack electrode on the back side of the main control board (7).
The earphone with a modular control board according to claim 1, wherein the main control board (7) and the free board, and the plurality of free boards (8) are connected by a positive magnet and a negative magnet. .
The earphone with a modular control board according to claim 4, characterized in that: the upper and lower portions of the back surface of the main control board (7) are provided with two spaced electrodes, the free The upper and lower portions of the front and back sides of the plate (8) are each provided with two spaced-apart electrodes, and the front and back faces of the free plate (8) are provided with magnets having opposite magnetic poles.
The earphone with a modular control board according to any one of claims 1 to 5, characterized in that the free plate (8) is formed by splicing a plurality of sub-boards.
The earphone with a modular control board according to claim 6, wherein one side of the sub-board is provided with a pin, and the corresponding side of the adjacent sub-board of the sub-board is provided with a jack. Mechanical and electrical connections are made between adjacent daughter boards through pins and jacks.
The earphone with a modular control panel according to any one of claims 1 to 5, characterized in that the free plate (8) is provided with an entrance through hole.