CN112019965A

CN112019965A - Switching system and method

Info

Publication number: CN112019965A
Application number: CN202010922129.3A
Authority: CN
Inventors: 纪娜娜
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2020-12-01

Abstract

The invention relates to a switching system and a method, wherein the switching system comprises a switching device and a TWS earphone; the switching device includes: a connecting seat which receives the earphone body and is provided with a first electric contact end and a second electric contact end; one end of the wire body is connected with the plug connector, and the other end of the wire body is electrically connected with the connecting seat; a through part formed on a side wall of the connecting seat; a fitting portion provided at the through portion; the TWS headset includes a headset body, which includes: an audio channel; a charging channel; MCU; the positive charging end and the negative charging end respectively form a loop with the charging channel and the audio channel and are respectively used for being connected with the first electric contact end and the second electric contact end; the switching unit is connected with the MCU and used for switching the connection between the positive charging end and the negative charging end and the charging channel or the audio channel; and the clamping part is used for being matched with the assembling part. The invention is used for realizing the conversion between the TWS earphone and the wired earphone and widening the use scene of the TWS earphone.

Description

Switching system and method

Technical Field

The invention belongs to the technical field of earphones, and particularly relates to a switching system and a switching method for switching between a wireless TWS earphone and a wired earphone.

Background

The Wireless earphone is an audio playing device which receives audio data transmitted by an audio signal source (host) in a radio wave form, processes the audio data into an analog audio signal and pushes a loudspeaker to sound, and the Wireless earphone, in particular a TWS (True Wireless Stereo bluetooth earphone) bluetooth earphone is favored by users due to the characteristics of small volume, portability and the like.

However, since the TWS headset is only suitable for wireless usage, the wireless headset cannot be used due to insufficient power, or the wireless headset cannot be paired with an audio signal source (host) due to the fact that the audio signal source (host) does not have a wireless transmission function, which greatly limits the usage scenario of the TWS headset and reduces the usage experience of the user on the headset.

Disclosure of Invention

One of the objectives of the present invention is to provide a switching system, which is used to convert a TWS headset into a wired headset, so as to implement the switching between the TWS headset and the wired headset, widen the usage scenarios of the TWS headset, and meet the multi-scenario usage requirements of users.

In order to solve the technical problems, the invention provides the following technical scheme for solving the problems:

the application relates to a switching system which is characterized by comprising a switching device and a TWS earphone; the switching device includes: the connecting seat is used for receiving the earphone body of the TWS earphone and is provided with a first electric contact end and a second electric contact end; one end of the wire body is connected with the plug connector, and the other end of the wire body is electrically connected with the connecting seat; a through part formed on a side wall of the connection holder; a fitting portion provided at the through portion; the TWS headset includes a headset body, the headset body includes: a charging channel; an audio channel; MCU; the positive contact end and the negative contact end are respectively used for being connected with the first electric contact end and the second electric contact end; the switching unit is in control connection with the MCU and is used for switching the connection between the positive charging end and the negative charging end and the charging channel or the audio channel; a clamping part used for matching with the assembling part so as to assemble the earphone body to the connecting seat.

In the present application, the clamping portion is a groove; the fitting portion includes: the limiting pin comprises an I-shaped operating end, a limiting end matched with the groove and a shaft body positioned between the operating end and the limiting end; the shaft body penetrates through the through part, so that the operating end and the limiting end are respectively positioned on two sides of the side wall of the connecting seat; and the spring is sleeved on the shaft body, and one end of the spring close to the operation end is limited in the through part.

In this application, the lateral surface of keeping away from of spacing end the axis body forms the arcwall face for following the top to the bottom transition.

In this application, the patching system further comprises a charging box mated with the TWS headset; the charging box includes: a control unit capable of communicating with the MCU; and the operation key is connected with the control unit through a key circuit.

In the application, the switching unit comprises a first switching device, a second switching device, a third switching device and a fourth switching device which are respectively in control connection with the MCU; the first switch device is arranged on a connecting circuit between the positive charging end and the charging unit of the earphone body; the second switching device is arranged on a connection line between the negative charging terminal and the charging unit; the third switching device is arranged between the positive charging terminal and the positive electrode of the loudspeaker of the earphone body; the fourth switching device is disposed between the negative charging terminal and the negative electrode of the speaker.

The switching system provided by the invention has the following beneficial effects and advantages: the TWS earphone is converted from wireless to wired on hardware by the aid of the switching device, after the switching device and the TWS earphone are assembled, the first electric contact point is electrically connected with the positive charging end in a contact mode, the second electric contact point is electrically connected with the negative charging end in a contact mode, the positive charging end and the negative charging end are disconnected with the charging channel by controlling the switching unit and are not used for charging, the positive charging end and the negative charging end are respectively communicated with the audio channel, wired audio playing is achieved, wired use scenes of the TWS earphone can be expanded, and flexible multi-scene selection and use of a user are met.

The invention also aims to provide a switching method for realizing switching between the TWS earphone and the limited earphone.

The application also relates to a switching method which is realized by the switching system and is characterized in that the switching unit is controlled to act; acquiring an earphone mode, wherein the earphone mode comprises a wired mode, a wireless mode and a charging mode; when the earphone mode is in a wired mode or a wireless mode, the earphone body is assembled to the connecting seat.

In this application, obtaining the earphone mode includes determining the earphone mode, where determining the earphone mode specifically includes: reading a flag bit for indicating a headphone mode; and determining the earphone mode according to the mark.

In this application, before controlling the switching unit to act, the method further includes a step of initializing data, where the data includes at least the flag bit.

In this application, the acquiring the headphone mode further includes a step of feeding back the headphone mode after determining the headphone mode.

In this application, the controlling the switching unit specifically includes: placing an earphone body of the TWS earphone in the charging box; and pressing the operation key to control the switching unit to act.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a structural diagram of an embodiment of a switching system according to the present invention after the switching device and a headset body are assembled;

fig. 2 is an exploded view of the adaptor device and the earphone body in the embodiment of the adaptor system of the present invention;

fig. 3 is a cross-sectional view of an embodiment of the adapting system according to the present invention, in which the earphone body is being assembled to the adapting device;

fig. 4 is a cross-sectional view of the earphone body after the assembly of the earphone body to the adaptor device in the embodiment of the adaptor system provided by the present invention is completed;

fig. 5 is an electrical schematic diagram of the connection between the adaptor and the earphone body in the embodiment of the adaptor system of the present invention;

fig. 6 is a flowchart of an embodiment of a switching method according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to meet the requirements of wired and wireless scenarios of the TWS headset, as shown in fig. 1, the present invention designs a switching device 100, and when the switching device 100 is mounted on the TWS headset, the switching device is configured to convert the TWS headset into a wired headset.

The TWS headphone includes a left headphone body and a right headphone body, and in this application, the headphone body 200 described below may refer to either the left headphone body or the right headphone body.

Generally, as shown in fig. 2, the TWS headset is equipped with a matched charging box, two exposed charging contacts, namely a positive charging end 210 and a negative charging end 220, are arranged on the headset body 200, when the headset body 200 is placed in the charging box, the charging contacts on the headset body 200 are in electrical contact with the charging contacts in the charging box, and a battery in the charging box, the charging contacts, the positive charging end 210 and the negative charging end 220 in the headset body 200, a charging unit 230 (see fig. 5) in the headset body 200 and the battery in the headset body 200 form a charging loop, so that the charging box charges the TWS headset.

Referring to fig. 5, the wireless audio processing module 240 is configured to wirelessly (e.g., bluetooth) communicate with an audio signal source (host) (e.g., a mobile phone), receive a wireless audio signal (usually in the form of audio data) from the audio signal source (host), process the received wireless audio signal into wireless audio information (in the form of analog electrical signals), transmit the wireless audio information to the speaker 250, and then emit sound through an electroacoustic transducer in the speaker 250.

Referring to fig. 1 to 4, the adaptor device 100 includes a connection seat 110, a wire body 120, a through portion 130, and an assembling portion 140.

The connecting socket 110 is barrel-shaped, and a first electrical contact end 111 and a second electrical contact end 112 are disposed on the inner bottom wall. The barrel-shaped connecting socket 110 is adapted to receive the earphone body 200, so that the portion of the earphone body 200 having the positive charging terminal 210 and the negative charging terminal 220 is inserted into the connecting socket 110 (as shown in fig. 1, 3 and 4), so that the positive charging terminal 210 and the negative charging terminal 220 of the earphone body 200 are in contact with and electrically connected to the first electrical contact terminal 111 and the second electrical contact terminal 112, respectively.

One end of the wire 120 is connected to a connector (not shown), which may be a 3.5mm headphone plug or a Lighting headphone plug, without limitation.

In general, a connection line is led out from the jack and divided into two branches, each branch is electrically connected to the connection base 110, specifically, one branch (having a left sound channel and a ground) is electrically connected to the connection base equipped with the left earphone body, i.e., the left sound channel is correspondingly connected to the first electrical contact terminal, and the ground is correspondingly connected to the second electrical contact terminal, and the other branch (having a right sound channel and a ground) is electrically connected to the connection base equipped with the right earphone body, i.e., the right sound channel is correspondingly connected to the first electrical contact terminal, and the ground is correspondingly connected to the second electrical contact terminal.

The through portion 130 is formed on a sidewall of the connection holder 110, and the assembling portion 140 is installed at the through portion 130 and extends into the connection holder 110 through the through portion 130 to be matched with the earphone body 200 to be assembled, so as to fix the earphone body 200 and the connection holder 110.

Specifically, as shown in fig. 2 to 4, in the present embodiment, the assembling portion 140 includes a limit pin 141 and a spring 142, the limit pin 141 is i-shaped and includes an operation end 1411, a shaft body 1412 and a limit end 1413, and two ends of the shaft body 1412 are vertically abutted with the operation end 1411 and the limit end 1413 respectively. The shaft body 1412 passes through the through portion 130, such that the operation end 1411 is located outside the sidewall of the connecting seat 110 and the limiting end 1413 is located inside the sidewall of the connecting seat 110.

The spring 142 is sleeved on the shaft body 1412, and one end of the spring 142 close to the operation end 1411 is limited in the through portion 130, that is, one end of the spring 142 abuts against the outer end of the through portion 130, and the other end abuts against the limit end 1413.

In the present application, the cross section of the operation end 1411 in the direction perpendicular to the length direction of the shaft body 1412 is circular, but may be formed in other shapes to enhance the aesthetic appearance of the adapter 100.

Considering the light weight, material cost and aesthetic appearance of the connection socket 110, the side wall of the connection socket 110 is not made too thick, so that a protrusion 150 is formed on the outer surface of the side wall of the connection socket 110 at the through part 130, the protrusion 150 is formed with a through part 151 corresponding to the through part 130, and an inwardly turned rib 152 is provided at the edge of one end of the through part 151 far from the through part 130 for limiting the spring 142, so as to prevent the spring from coming out of the through part 151, i.e., one end of the spring 142 abuts against the rib 152 and the other end abuts against the limiting end 143.

In the present application, the

through portions

130 and 151 may have equal or unequal sizes, but need to be located on the same line. At least a part of the shaft body 1412 and the spring 142 are located in a long through-portion formed by the through-portion 151 and the through-portion 130.

Correspondingly, a clamping portion 260 is disposed on the sidewall of the earphone body 200, and is used for matching with the mounting portion 1340 of the connecting seat 110.

Specifically, in the present application, as shown in fig. 4, the clip portion 260 is embodied as a groove formed on the sidewall of the earphone body 200.

The process of assembling and disassembling the earphone body 200 and the connecting jack 100 will be described as follows.

During assembly, (1) the earphone body 200 is inserted into the connecting seat 110 from top to bottom, as shown in fig. 3, before the clamping portion 260 approaches the limit end 1413, the side wall of the earphone body 200 presses the limit end 1413, so that the limit pin 141 moves to the right, and the spring 142 is compressed; (2) the earphone body 200 continues to move downwards, and moves downwards until the clamping portion 260 is aligned with the limiting end 1413, the limiting pin 141 is driven to move leftwards due to the elastic restoring force of the spring 142, and the limiting end 1413 is just embedded into the clamping portion 260, as shown in fig. 4, at this time, under the action of no external force, the earphone body 200 is stably assembled on the connecting seat 110, and simultaneously, the positive charging end 210 and the negative charging end 220 on the earphone body 200 are just electrically connected with the first electric contact end 111 and the second electric contact end 112 on the bottom wall of the connecting seat 110 respectively.

In the present embodiment, the first electrical contact end 111 and the second electrical contact end 112 may be selected as Pogo pins (i.e. probe connectors), metal clips, or other electrical connection devices.

When the assembly is released, the user pinches the operation end 1411 and pulls the limiting pin 141 to the right, so that the limiting end 1413 moves to the right and compresses the spring 142 until the limiting end 1413 is separated from the clamping portion 260, and at this time, the earphone body 200 is taken out of the connecting seat 100 by hand.

Thereafter, the user releases the operating end 1411, and the stopper pin 141 is restored due to the elastic force of the spring 142.

In this application, in order to easily realize the assembly of spacing end 1413 and joint 260 when the assembly, as shown in fig. 2 to 4, the lateral surface of keeping away from axis body 1412 of spacing end 1413 forms into arcwall face a for following the top to the bottom transition, like this, when earphone body 200 moves down and assembles as in fig. 3, earphone body 200 lateral wall and arcwall face a can the slow contact, avoid causing destruction or harm etc. to earphone body 200's outward appearance face because of spacing end 1413 lateral wall.

In order to realize the hardware connection between the earphone body 200 and the connection base 110, and to convert the TWS earphone into a wired earphone, the present application further relates to a switching Unit 280, shown by a dotted line in fig. 5, connected to a MCU 270 (Microcontroller Unit) for controlling the connection, for switching the connection between the positive charging terminal 210 and the negative charging terminal 220 and the charging channel or the audio channel of the earphone body 200, which is described in detail as follows. The MCU 270 in this embodiment is a bluetooth chip.

As described above, the earphone body 200 includes the charging channel transmitting the charging current and the audio channel transmitting the audio information.

If the TWS headset is to be converted into a wired headset, the key is how to transmit audio information from an audio signal source (host) to an audio channel through the wire body 120, the first electrical contact 111 and the second electrical contact 112 by using the positive charging terminal 210 and the negative charging terminal 220, and then play the audio information by the speaker 250.

When the charging mode of the earphone mode is used, the earphone body 200 and the adaptor device 100 are disassembled, the switching unit 280 is controlled to operate, the positive charging terminal 210 and the negative charging terminal 220 are connected with the charging channel of the earphone body 200, the positive charging terminal 210 and the negative charging terminal 220 are disconnected with the audio channel of the earphone body 200, the wired audio information is prohibited from being transmitted through the audio channel, the earphone body 200 is placed in a matched charging box for charging, and the wireless audio information is prohibited from being transmitted through the audio channel in the TWS earphone charging mode.

When the wired mode (i.e. wired play mode) of the earphone mode is used, the switching unit 280 is controlled to operate, so that the positive charging terminal 210 and the negative charging terminal 220 are disconnected from the charging channel of the earphone body 200, the positive charging terminal 210 and the negative charging terminal 220 are connected to the audio channel of the earphone body 200, and when the earphone body 200 is assembled to the adaptor device 100, the first electrical contact 111 is electrically connected to the positive charging terminal 210, and the second electrical contact 112 is electrically connected to the negative charging terminal 220, so that audio information from an audio signal source (host) received by the wire body 120 is transmitted to the audio channel through the positive charging terminal 210 and the negative charging terminal 220 to be played by the speaker 250, thereby realizing wired play.

At this time, the wireless audio information generated by the wireless audio processing module 240 can also be transmitted together through the audio channel. Of course, in this mode, the user may turn off the bluetooth manually or automatically control to turn off the bluetooth programmatically, so that the wireless audio information generated by the wireless audio processing module 240 is not transmitted through the audio channel.

When the wireless mode (i.e., wireless play mode) of the headset mode is used, the headset body 200 is taken out of the charging box, and the headset body 200 is disassembled from the connecting seat 110, at this time, the switching unit 280 is controlled to disconnect the charging paths of the positive charging terminal 210 and the negative charging terminal 220 and connect the positive charging terminal 210 and the negative charging terminal 220 with the audio channels of the headset body 200 (since the headset body 200 is already disassembled from the connecting seat 110, even though the positive charging terminal 210 and the negative charging terminal 220 are connected with the audio channels of the headset body 200, wired audio signals are not transmitted), at this time, the headset body 200 is the same as a conventional TWS bluetooth wireless headset, and wireless audio information output by the wireless audio processing module 240 can be transmitted to the audio channels to be played by the speaker 250, thereby realizing wireless play.

To specifically explain how to implement the wired/wireless use of the TWS headset, in the present application, as shown in fig. 5, the switching unit 280 includes a first switching device 281, a second switching device 282, a third switching device 283 and a fourth switching device 284. In this embodiment, each of the switch devices 281 and 284 is a relay switch.

The first switching device 281 is disposed between the positive charging terminal 210 and the charging unit 230, and the second switching device 282 is disposed between the negative charging terminal 220 and the charging unit 230, that is, the first switching device 281 is disposed on a connection line between the positive charging terminal 210 and the charging path, and the second switching device 282 is disposed on a connection line between the negative charging terminal 220 and the charging path.

When the first switching device 281 and the second switching device 282 are controlled to be turned on (i.e., turned on) by the MCU 270, the positive charging terminal 210 and the negative charging terminal 220 are connected to the charging path, so that charging can be achieved; when either one of the first and second switching devices 281 and 282 is closed (i.e., opened), charging cannot be achieved.

A third switching device 283 is disposed on a connection line between the positive charging terminal 210 and the positive electrode of the speaker 250, and a fourth switching device 284 is disposed on a connection line between the negative charging terminal 220 and the negative electrode of the speaker 250. The speaker 250 is located on the audio channel, and the speaker 250 has a channel positive pole and a channel negative pole.

When the third switching device 283 and the fourth switching device 284 are controlled to be turned on (i.e., turned on), the positive charging terminal 210 and the negative charging terminal 220 are connected to the audio channel, and thus wired audio information can be transmitted on the audio channel.

In this embodiment, the third switching device 283 is also disposed between the audio output terminal of the wireless audio processing module 240 and the positive electrode of the speaker 250, and the fourth switching device 284 is also disposed between the audio output terminal of the wireless audio processing module 240 and the negative electrode of the speaker 250.

In the charging mode using the headset mode, the first switching device 281 and the second switching device are controlled to be opened, and the third switching device 283 and the fourth switching device 284 are controlled to be closed, so that the positive charging terminal 210 and the negative charging terminal 220 are connected with the charging channel of the headset body 200, while the positive charging terminal 210 and the negative charging terminal 220 are disconnected with the audio channel of the headset body 200, the wired audio information is prohibited from being transmitted through the audio channel, and the headset body 200 is placed in a matched charging box for enabling charging, and in the TWS headset charging mode, the wireless audio information is also prohibited from being transmitted through the audio channel.

When the wired mode of the earphone mode is used, the first switch device 281 and the second switch device 282 are controlled to be closed, and the third switch device 283 and the fourth switch device 284 are controlled to be opened, so that the positive charging terminal 210 and the negative charging terminal 220 are disconnected from the charging channel of the earphone body 200, the positive charging terminal 210 and the negative charging terminal 220 are connected with the audio channel of the earphone body 200, and when the earphone body 200 is assembled to the adapting device 100, audio information received by the wire body 120 from an audio signal source (host) is transmitted to the audio channel through the positive charging terminal 210 and the negative charging terminal 220 to be played by the speaker 250, thereby realizing wired playing.

In the wireless mode using the earphone mode, the earphone body 200 is taken out of the charging box, and the earphone body 200 is disassembled from the connection holder 110, the first and second switching devices 281 and 282 are controlled to be closed, and the third and fourth switching devices 283 and 284 are controlled to be opened, so that the positive and

negative charging terminals

210 and 220 are disconnected from the charging path of the earphone body 200, and the positive and

negative charging terminals

210 and 220 are connected to the audio channel of the earphone body 200, at this time, the earphone body 200 can transmit the wireless audio information output by the wireless audio processing module 240 to the audio channel through the third and fourth switching devices 283 and 284 to be played by the speaker 250, thereby realizing wireless playing.

In this mode, the wireless audio information processed and output by the wireless audio processing module 240 may enter the positive channel of the speaker 250 through the third switching device 283 and enter the negative channel of the speaker 250 through the fourth switching device 284.

Of course, in the above various modes, the wireless audio processing module 240 may always maintain the connection with the speaker 250 to process the output wireless audio information. Therefore, in the wired playing mode, the wireless audio information output can be forbidden by turning off the Bluetooth; in the wireless playing mode, since the earphone body 200 is disassembled from the connecting seat 110, only the wireless audio information is outputted.

With the transit system as described above, a corresponding transit method is explained below with reference to fig. 6.

S1: the switching unit 280 is controlled to operate.

As for how the switching unit 280 acts, it needs to be determined according to the user's requirement, that is, whether the user wants the earphone body 200 to be in the charging mode, the wired mode, or the wireless mode.

That is, when the earphone body 200 is in the charging mode, the first switching device 281 and the second switching device may be controlled to be opened, and the third switching device 283 and the fourth switching device 284 may be controlled to be closed;

when the earphone body 200 is in the wired mode, the first and second switching devices 281 and 282 are controlled to be closed, and the third and fourth switching devices 283 and 284 are controlled to be opened;

when the headset body 200 is in the wireless mode, the first and second switching devices 281 and 282 are controlled to be closed, and the third and fourth switching devices 283 and 284 are controlled to be opened.

The charging mode, the wired mode and the wireless mode can be selected in different modes, for example, the key pressing time is different, or the pressing times are different.

The switching unit 280 may be triggered by an operation button or an operation switch provided on the headset body 200, or may be triggered by an operation button (not shown) or an operation switch (not shown) provided on a charging box that is configured to the TWS headset.

Preferably, an operation button (not shown) is arranged on the charging box to send a signal to a control unit (not shown) in the charging box, the charging box is communicated with the earphone body 200 to realize the communication of the signal to the MCU 270 of the earphone body 200, so that the MCU 270 correspondingly controls the action of the switch 270 according to the signal, thereby avoiding the relaxation of design requirements (such as volume, device layout, etc.) on the earphone body 200 and the risk of misoperation easily occurring on the earphone body 200.

S2: obtaining an earphone mode, wherein the earphone mode comprises a wired mode, a charging mode and a wireless mode.

In order to be able to feed back the determined headphone mode to the user, voice prompt may be performed by using a voice prompt after S1 is performed, or text display may be performed through a display window, or the like.

How to determine the earphone mode is described below in terms of setting an operation key on the charging box to control the action of the switching unit 280.

(1) Placing the earphone body in a charging box, wherein two charging contacts in the charging box are in contact with a positive charging end 210 and a negative charging end 220 of the earphone body 200;

(2) the long pressing of the operation key on the charging box is for 5 seconds, for example, if the pressing is not for five seconds, the invalid operation is represented, the Flag for representing the earphone mode is read, and the Flag is written into the memory of the earphone body 200;

(3) the earphone body 200 is restarted, whether the Flag is set to 1 or not is detected, and the setting of 1 indicates that the earphone mode is the wired mode.

In the present application, according to the operation of the switching unit 280 as described above, the operation of the switching unit 280 in the wired mode and the wireless mode is the same, that is, the first switching device 281 and the second switching device 282 are both closed, and the third switching device 283 and the fourth switching device 284 are both opened, so that the Flag is also set to 1 in the wireless mode, and it is specifically necessary to see how the user selects the Flag, if the user does not assemble the switching device 100 at this time, the wireless playback can be realized, and if the user assembles the switching device 100 at this time, the wired playback can be realized.

After, for example, the operation key is pressed again for, for example, 5 seconds, then Flag changes from 1 to 0, indicating that the switching unit 280 switches the state from "both the first switching device 281 and the second switching device 282 are closed, and both the third switching device 283 and the fourth switching device 284 are open" to "both the first switching device 281 and the second switching device 282 are open, and both the third switching device 283 and the fourth switching device 284 are closed", at which time, it can be considered that the headphone body 200 enters the charging mode.

The headset mode may be fed back to the user through the detected Flag.

S3: and judging whether the earphone mode is the wired mode or not.

When the earphone mode is the wired mode, the switching device 100 is assembled to the earphone body 200 to realize the switching from the wireless earphone to the wired earphone, otherwise, the charging mode or the wireless mode can be entered.

When the Flag is used to determine the earphone mode, a step of initializing data is also required before S1, where the data mainly refers to the Flag, so as to avoid that the next reading of the Flag causes an error in judgment of the earphone mode, which affects user experience.

Through the switching system and the switching method, the switching from the TWS earphone to the wired earphone can be realized, the wireless and wired scene use of the TWS earphone can be met, the TWS earphone can be matched with an audio signal source (host) with a Bluetooth function and an audio signal source without the Bluetooth function, the user can conveniently select and use the TWS earphone, and the use experience of the user is improved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A switching system is characterized by comprising a switching device and a TWS earphone;

the switching device includes:

the connecting seat is used for receiving the earphone body of the TWS earphone and is provided with a first electric contact end and a second electric contact end;

one end of the wire body is connected with the plug connector, and the other end of the wire body is electrically connected with the connecting seat;

a through part formed on a side wall of the connection holder;

a fitting portion provided at the through portion;

the TWS headset includes a headset body, the headset body includes:

a charging channel;

an audio channel;

MCU；

the positive contact end and the negative contact end are respectively used for being connected with the first electric contact end and the second electric contact end;

the switching unit is connected with the MCU and used for switching the connection between the positive charging end and the negative charging end and the charging channel or the audio channel;

a clamping part used for matching with the assembling part so as to assemble the earphone body to the connecting seat.

2. The patching system of claim 1, wherein the snap-in portion is a groove; the fitting portion includes:

the limiting pin comprises an I-shaped operating end, a limiting end matched with the groove and a shaft body positioned between the operating end and the limiting end; the shaft body penetrates through the through part, so that the operating end and the limiting end are respectively positioned on two sides of the side wall of the connecting seat;

and the spring is sleeved on the shaft body, and one end of the spring close to the operation end is limited in the through part.

3. The transition system according to claim 2, wherein an outer side surface of the limiting end away from the shaft body is formed into an arc-shaped surface in a transition from top to bottom.

4. The patching system of claim 1, further comprising a charging box configured to mate with the TWS headset;

the charging box includes:

a control unit capable of communicating with the MCU;

and the operation key is connected with the control unit through a key circuit.

5. The patching system of claim 4, wherein the switching unit comprises a first switching device, a second switching device, a third switching device and a fourth switching device respectively in control connection with the MCU;

the first switch device is arranged on a connecting circuit between the positive charging end and the charging unit of the earphone body;

the second switching device is arranged on a connection line between the negative charging terminal and the charging unit;

the third switching device is arranged between the positive charging terminal and the positive electrode of the loudspeaker of the earphone body;

the fourth switching device is disposed between the negative charging terminal and the negative electrode of the speaker.

6. A transfer method implemented by a transfer system according to any one of claims 1 to 5,

controlling the switching unit to act;

acquiring the earphone modes, wherein the earphone modes comprise a non-charging mode, a charging mode and a wireless mode;

when the earphone mode is in a wired mode or a wireless mode, the earphone body is assembled to the connecting seat.

7. The transfer method according to claim 6, wherein the obtaining the headset mode comprises determining the headset mode, and the determining the headset mode specifically comprises:

reading a flag bit for indicating a headphone mode;

and determining the earphone mode according to the flag bit.

8. The transfer method according to claim 7, further comprising the step of initializing data before controlling the switching unit action, the data comprising at least the flag bit.

9. The transition method according to claim 7, wherein the acquiring the headphone mode further comprises the step of feeding back the headphone mode after determining the headphone mode.

10. The transfer method according to claim 6, wherein the controlling the switching unit specifically comprises:

placing an earphone body of the TWS earphone in the charging box;

and pressing the operation key to control the switching unit to act.