CN114710728A

CN114710728A - Split type earphone box, earphone subassembly and head-mounted device

Info

Publication number: CN114710728A
Application number: CN202210467036.5A
Authority: CN
Inventors: 刘岩
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-05

Abstract

The invention provides a split type earphone box, an earphone assembly and a head-mounted device. The split earphone box comprises a first charging box, a second charging box and a connector; the first charging box is provided with an accommodating cavity for accessing a first earphone, and a first main control assembly and a first working assembly are arranged in the first charging box; the second charging box is provided with an accommodating cavity for accessing a second earphone, and a second working assembly is arranged in the second charging box; the first charging box is used for establishing electric connection with the second charging box through the connector; the first main control assembly is also used for controlling the second working assembly to be in a communication mode when the first charging box is electrically connected with the second charging box through the connector, so that the first main control assembly is in communication connection with the second earphone through the second working assembly. The invention aims to improve the convenience of the earphone in special application scenes.

Description

Split type earphone box, earphone subassembly and head-mounted device

Technical Field

The invention relates to the technical field of earphone charging boxes, in particular to a split type earphone box, an earphone assembly and a head-mounted device.

Background

In some special application scenarios of the headset, particularly the TWS headset, for example, when the headset is used as an accessory of a headset such as VR, the headset often needs to be fixed on two sides of the headset respectively, however, the headset cannot be charged, and the headset cannot be stored when the headset is not used at ordinary times, which causes difficulty in use of a user.

Disclosure of Invention

The invention mainly aims to provide a split type earphone box, an earphone assembly and a head-mounted device, and aims to improve the convenience of using earphones in special application scenes.

In order to achieve the above object, the present invention provides a split-type earphone box, which is applied to an earphone assembly, wherein the earphone assembly includes a first earphone and a second earphone, and the split-type earphone box includes:

the first earphone charging box is provided with an accommodating cavity for accessing the first earphone, and a first main control assembly and a first working assembly are arranged in the first charging box;

the first master control assembly is configured to control the first working assembly to be in a charging mode to charge the first earphone when the first earphone is accessed, and/or control the first working assembly to be in a communication mode to enable the first master control assembly to establish a communication connection with the first earphone through the first working assembly;

the second charging box is provided with an accommodating cavity for accessing the second earphone, and a second working assembly is arranged in the second charging box;

the second working component is used for charging the second earphone when the second earphone is accessed;

a connector through which the first charging box is electrically connected with the second charging box;

the first main control assembly is further used for controlling the second working assembly to be in a communication mode so that the first main control assembly can be in communication connection with the second earphone through the second working assembly when the first charging box is electrically connected with the second charging box through the connector.

Optionally, the first working assembly includes:

a first battery;

the output end of the first switch circuit is used for establishing an electric connection path with the first earphone when the first earphone is connected, and the controlled end and the second input end of the first switch circuit are respectively connected with the first main control assembly;

the input end of the first power supply management circuit is connected with the first battery, and the output end of the first power supply management circuit is connected with the first input end of the first switch circuit;

the first power management circuit is used for converting the battery voltage of the first battery into overvoltage and outputting charging voltage;

the first switch circuit is used for conducting a path between a first input end and an output end of the first switch circuit when the first main control assembly is controlled to be in a charging mode; or when the first master control assembly is controlled to be in a communication mode, a path between the second input end and the output end of the first switch circuit is conducted, so that the first master control assembly and the first earphone are in communication connection.

Optionally, the first master control assembly further has a control end and a communication end for connecting to the connector, and the master control assembly is further configured to configure a voltage of the control end to a first voltage;

a pull-up circuit is further arranged in the first charging box, a first end of the pull-up circuit is connected with the control end of the main control assembly, and a second end of the pull-up circuit is used for being connected with the connector;

the second working assembly comprises:

a second battery;

the pull-down circuit is used for forming a voltage division circuit with the pull-up circuit when the first charging box is electrically connected with the second charging box through the connector so as to divide the first voltage into a second voltage according to a preset resistance value ratio;

the output end of the second switch circuit is used for establishing an electric connection path with the second earphone when the second earphone is connected, the controlled end of the second switch circuit is electrically connected with the pull-down circuit, both the controlled end and the second input end of the second switch circuit are used for connecting the connector, and when the first charging box is used for establishing electric connection with the second charging box through the connector, the communication end of the first main control assembly and the second input end of the second switch circuit establish an electric connection path;

the input end of the second power management circuit is connected with the second battery, and the output end of the second power management circuit is connected with the first input end of the second switch circuit;

the second power management circuit is used for converting the battery voltage of the second battery into overvoltage and outputting charging voltage;

the second switch circuit is used for conducting a path between a first input end and an output end of the second switch circuit when the voltage of the controlled end of the second switch circuit is lower than a preset switching voltage; when the voltage of the controlled end of the second switch circuit reaches a preset switching voltage, a path between a second input end and an output end of the second switch circuit is conducted; wherein the second voltage is greater than the preset switching voltage.

The first master control assembly is further configured to detect a voltage at the second end of the pull-up circuit, and determine that the first charging box is not electrically connected to the second charging box through the connector when the voltage at the second end of the pull-up circuit is determined to be the first voltage; and the number of the first and second groups,

and when the voltage of the second end of the pull-up circuit is confirmed to be a second voltage, determining that the first charging box is electrically connected with the second charging box through the connector, and establishing communication connection with the second earphone through the connector and the second switch circuit.

Optionally, the first main control assembly is further configured to configure the voltage of the control end to be a low-level voltage after it is confirmed that the first charging box is electrically connected to the second charging box through the connector, so that the voltage of the controlled end of the second switch circuit is lower than a preset switching voltage, and a path between the first input end and the output end of the second switch circuit is conducted, so that the second power management circuit outputs a charging voltage to charge the second earphone;

the first master control assembly is further configured to configure the voltage of the control terminal back to a first voltage every preset detection time, and determine that the first charging box is still electrically connected with the second charging box through the connector if the voltage of the second terminal of the pull-up circuit is determined to be a second voltage; and if the voltage of the second end of the pull-up circuit is confirmed to be the first voltage, determining that the first charging box is not electrically connected with the second charging box through the connector.

Optionally, an indication module electrically connected with the first main control assembly is further disposed on the first charging box;

the first master control assembly is further used for controlling the first switch circuit to be in a communication mode every preset time interval so as to acquire a first electric quantity signal transmitted by the first earphone and controlling the indicating module to indicate the electric quantity of the first earphone according to the first electric quantity signal;

the first main control assembly is further configured to configure the voltage of the control terminal to be a first voltage at intervals of a preset time after the first charging box is confirmed to be electrically connected with the second charging box through the connector, so as to obtain a second electric quantity signal transmitted by the second earphone, and control the indication module to indicate the electric quantity of the second earphone according to the second electric quantity signal;

the first master control assembly is further used for controlling the indicating module to indicate the electric quantity of the earphone with the lower electric quantity according to the first electric quantity signal and the second electric quantity signal.

Optionally, a trigger module electrically connected with the first main control assembly is further disposed on the first charging box;

the trigger module is used for outputting a corresponding trigger signal when triggered by a user;

the first master control assembly is further configured to control the first switch circuit to be in a communication mode when receiving the trigger signal, so as to output a corresponding control signal to the first earphone according to the trigger signal;

the first master control assembly is further configured to configure the voltage of the control terminal to a first voltage after the first charging box is confirmed to be electrically connected with the second charging box through the connector and the trigger signal is received, so as to output a corresponding control signal to the second earphone according to the trigger signal.

Optionally, the first charging box is further provided with a charging female socket for accessing an external voltage, the charging female socket is connected with the first power management circuit, and the charging female socket is further provided with a power supply connection end for connecting the connector;

the first power management circuit is used for converting the external voltage and outputting a battery charging voltage to the first battery to charge the first battery when receiving the external voltage; and converting the external voltage and outputting the charging voltage;

the second power management circuit is also provided with an external power input end used for being connected with the connector, and when the first charging box is electrically connected with the second charging box through the connector, an electric connection path is formed between the external power input end and the power supply connecting end;

the second power management circuit is used for converting the external voltage and outputting a battery charging voltage to the second battery to charge the second battery when receiving the external voltage; and converting the external voltage and outputting the charging voltage;

optionally, the charging female socket is further electrically connected with the first main control assembly;

the charging female seat is also used for accessing earphone box updating data or earphone updating data;

the first main control component is further used for storing the earphone box updating data in the first main control component when the earphone box updating data is received so as to update the data stored in the first main control component;

the first master control assembly is further configured to control the first switch circuit to be in a communication mode when receiving the headset update data, so as to upload the headset update data to the first headset;

the first master control assembly is further configured to configure the voltage of the control terminal to be a first voltage after the first charging box is confirmed to be electrically connected with the second charging box through the connector and when the earphone update data is received, so as to upload the earphone update data to the second earphone.

Optionally, the connector includes a first connecting portion disposed on the first charging box and a second connecting portion disposed on the second charging box;

the first connecting part comprises a first magnetic piece and a plurality of connecting ends electrically connected with the first main control assembly;

the second connecting part comprises a second magnetic piece and a plurality of connecting ends electrically connected with the second working assembly;

the first connecting part is in magnetic attraction connection with the second connecting part through a first magnetic part and a second magnetic part, so that the first charging box is electrically connected with the second charging box through the connector; when the first charging box is electrically connected with the second charging box through the connector, the connecting ends of the first connecting parts and the connecting ends of the second connecting parts are connected in a one-to-one correspondence manner.

Optionally, a first connection interface is arranged on the first charging box, and the first connection interface includes a plurality of connection ends electrically connected to the first main control assembly;

a second connecting interface is arranged on the second charging box and comprises a plurality of connecting ends electrically connected with the second working assembly;

the connector comprises a flat cable, a first connector is arranged at the first end of the flat cable, and a second connector is arranged at the second end of the flat cable; when the first connector is connected into the first connecting interface and the second connector is connected into the second connecting interface, the connecting ends of the first connecting parts and the connecting ends of the second connecting parts are connected in a one-to-one correspondence mode.

The invention also provides an earphone assembly which comprises a first earphone, a second earphone and the split-type earphone box.

The invention also provides head-mounted equipment which comprises an equipment main body and the earphone assembly.

The split earphone box comprises a first charging box, a second charging box and a connector. The first charging box is provided with a containing cavity for accessing a first earphone, a first main control assembly and a first working assembly are arranged in the first charging box, and the first main control assembly is used for controlling the first working assembly to be in a charging mode to charge the first earphone when the first earphone is accessed, and/or controlling the first working assembly to be in a communication mode to enable the first main control assembly to be in communication connection with the first earphone through the first working assembly; the second charging box is provided with a containing cavity used for being connected with a second earphone, a second working assembly is arranged in the second charging box and used for charging the second earphone when the second earphone is connected, and the first main control assembly is also used for controlling the second working assembly to be in a communication mode so that the first main control assembly can be in communication connection with the second earphone through the second working assembly when the first charging box is electrically connected with the second charging box through the connector. Therefore, in a special use scene of the earphone, for example, when the earphone is used as an accessory of the head-mounted device, a user can respectively arrange the first earphone box and the second earphone box on two sides of the head-mounted device to respectively store two earphones and charge the earphones, so that the requirement of the user on using the earphone when the user uses the head-mounted device is met, and the convenience of the user in the special application scene is improved. Meanwhile, when the first charging box and the second charging box are connected through the connector, the requirement of a user for daily independent use of earphones can be met, and therefore the convenience for the user to use the split-type earphone box is improved. In addition, the split earphone box only arranges the main control component in the first charging box, can realize the basic interaction function of the charging box and the earphone, and simultaneously simplifies the circuit structure, thereby effectively reducing the cost.

Drawings

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

Fig. 1 is a schematic block diagram of a split-type earphone box according to an embodiment of the present invention;

fig. 2 is a schematic block diagram of another embodiment of the split-type earphone box according to the present invention;

fig. 3 is a schematic block diagram of another embodiment of the split-type earphone box according to the present invention;

fig. 4 is a schematic block diagram of a split-type earphone box according to another embodiment of the present invention;

fig. 5 is a schematic block diagram of another embodiment of the split-type earphone box according to the present invention;

fig. 6 is a specific circuit diagram of a second switch circuit in another embodiment of the split-type earphone box of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

When the earphone, especially the TWS earphone, is used as an accessory of a headset such as a VR, the earphone often needs to be fixed on both sides of the headset respectively, however, the headset cannot be charged and the electric quantity of the earphone cannot be displayed, and the earphone cannot be stored when the headset is not used at ordinary times, which causes difficulty in use for a user.

Therefore, the invention provides a split-type earphone box, which is applied to an earphone assembly, wherein the earphone assembly comprises a first earphone and a second earphone.

Referring to fig. 1, in an embodiment of the present invention, a split-type earphone box includes:

the earphone comprises a first charging box 10, wherein an accommodating cavity for accessing a first earphone is formed in the first charging box 10, and a first main control assembly 12 and a first working assembly 11 are arranged in the first charging box 10;

the first main control component 12 is configured to control the first working component 11 to be in a charging mode to charge the first headset when the first headset is accessed, and/or control the first working component 11 to be in a communication mode so that the first main control component 12 establishes a communication connection with the first headset through the first working component 11;

a second charging box 20, wherein the second charging box 20 is provided with an accommodating cavity for accessing a second earphone, and a second working assembly 21 is arranged in the second charging box 20;

the second working assembly 21 is used for charging the second earphone when the second earphone is accessed;

a connector 30, the first charging box 10 for establishing electrical connection with the second charging box 20 via the connector 30;

the first main control component 12 is further configured to control the second working component 21 to be in a communication mode when the first charging box 10 is electrically connected to the second charging box 20 through the connector 30, so that the first main control component 12 is communicatively connected to the second headset through the second working component 21.

In this embodiment, the first main control component 12 can be implemented by a main controller, such as an MCU (micro controller unit), a DSP (Digital Signal processing) chip, an FPGA (Field Programmable Gate Array) chip, and the like. The first working assembly 11 and the second working assembly 21 may be composed of a battery, at least one switching circuit, and a charging circuit, so that the voltage of the battery can be converted into a charging voltage and then output, and the headset can enter a charging state when being connected.

In the present embodiment, the connector 30 may be implemented by a separate connector 30, such as a flat cable with a connector or a connecting wire to electrically connect the first charging box 10 and the second charging box 20, or may be directly disposed on the first charging box 10 or the second charging box 20 for the convenience of the user.

In this embodiment, the shape of the receiving cavity may be set according to the configuration of the earphone.

In this embodiment, after the first main control component establishes a communication connection with the first earphone and/or after the first main control component establishes a communication connection with the second earphone, data can be interacted with each other, for example, the power of the earphone is read, or the earphone is controlled to execute a corresponding program according to an externally accessed signal.

It will be appreciated that in practical applications, the connection terminals of the earphone and the charging box are generally two (ground terminal and charging/communication terminal) or three (ground terminal, charging terminal, communication terminal). Optionally, in an embodiment, two connection terminals (a ground terminal and a charging/communication terminal) may be simultaneously disposed in the receiving cavity to adapt to an earphone with the two connection terminals, a corresponding charging circuit and a corresponding switching circuit, such as a single-pole double-throw switching circuit, may be disposed in the first working assembly 11, and the first main control assembly 12 may switch on a path between an output terminal of the charging circuit and the charging/communication terminal on the receiving cavity (a charging mode) or a path between itself and the charging/communication terminal on the receiving cavity (a communication mode) by controlling the single-pole double-throw switching circuit, so that when the first earphone is connected, the first earphone can be charged or communicated with the first earphone. Similarly, the second working component 21 may also be provided with the above-mentioned corresponding switch circuit and charging circuit, and the switch circuit may normally conduct the path between the output terminal of the charging circuit and the charging/communication terminal on the accommodating cavity, so that when the first charging box 10 and the second charging box 20 are in the separated state, the second earphone can be directly charged when being connected to the accommodating cavity of the second charging box 20. When the first charging box 10 and the second charging box 20 are in a combined state through the connector 30, the first main control assembly 12 may control the switch circuit in the second working assembly 21 to switch, so that the first main control assembly 12 can communicate with a path between the charging/communication terminals on the accommodating cavity through the connector 30 and the second working assembly 21, so as to communicate with a second headset when the second headset is connected.

Optionally, in another embodiment, three corresponding connection ends may be simultaneously disposed in the accommodating cavity, the three connection ends are all connected to the first working assembly 11, when the first main control assembly 12 has a communication requirement, the first working assembly 11 is controlled to be in a communication mode, for example, the corresponding switch in the first control assembly is controlled to be in a closed state, so as to turn on the first main control assembly 12 and a path of the communication end in the accommodating cavity, so that when the first earphone is connected, the first main control assembly 12 establishes a communication connection with the first earphone through the first working assembly 11, and simultaneously, the first working assembly 11 may also be controlled to be in a charging mode, so that the corresponding charging circuit works to output a charging voltage through the charging end, so that the charging operation can be performed when the first earphone is connected. Similarly, the second working component 21 may also be provided with a switch circuit and a charging circuit, and establish an electrical connection between the first charging box 10 and the second charging box 20 through the connector 30, and execute the same operations as above, so as to communicate with the second headset and control the corresponding charging circuit to charge the second headset when the second headset is connected, or, a communication end on a cavity accommodated in the second charging box 20 is directly used to connect into the connector 30, so as to establish an electrical connection between the first charging box 10 and the second charging box 20 through the connector 30, and the first main control component 12 can be directly connected to a communication end on the cavity accommodated in the second charging box 20, and establish a communication connection with the second headset when the second headset is connected. Therefore, in a special use scene of the headset, for example, when the headset is used as an accessory of a head-mounted device, a user can respectively arrange the first headset box and the second headset box on two sides of the head-mounted device to respectively store two headsets and charge the headset, so that the requirement of the user on using the headset when the user uses the head-mounted device is met, and the convenience of the user in the special application scene is improved. Meanwhile, when the first charging box 10 and the second charging box 20 are connected through the connector 30, the requirement of the user for daily independent use of the earphone can be met, and the same function as that of a common earphone charging box is realized.

The split type earphone box of the present invention includes a first charging box 10, a second charging box 20, and a connector 30. The first charging box 10 is provided with a containing cavity for accessing a first earphone, the first charging box 10 is provided with a first main control assembly 12 and a first working assembly 11, the first main control assembly 12 is used for controlling the first working assembly 11 to be in a charging mode to charge the first earphone when the first earphone is accessed, and/or controlling the first working assembly 11 to be in a communication mode to enable the first main control assembly 12 to be in communication connection with the first earphone through the first working assembly 11; the second charging box 20 is provided with a containing cavity for accessing a second earphone, the second charging box 20 is provided with a second working assembly 21, the second working assembly 21 is used for charging the second earphone when the second earphone is accessed, and the first main control assembly 12 is also used for controlling the second working assembly 21 to be in a communication mode so that the first main control assembly 12 establishes communication connection with the second earphone through the second working assembly 21 when the first charging box 10 establishes electric connection with the second charging box 20 through the connector 30. Therefore, in a special use scene of the headset, for example, when the headset is used as an accessory of a head-mounted device, a user can respectively arrange the first headset box and the second headset box on two sides of the head-mounted device to respectively store two headsets and charge the headset, so that the requirement of the user on using the headset when the user uses the head-mounted device is met, and the convenience of the user in the special application scene is improved. Meanwhile, when the first charging box 10 and the second charging box 20 are connected through the connector 30, the requirement of the user for daily independent use of the earphone can be met, so that the convenience of the user in using the split-type earphone box of the present invention is improved. In addition, the split earphone box of the invention is only provided with the main control component in the first charging box 10, which can simplify the circuit structure while realizing the basic interaction function of the charging box and the earphone, and effectively reduce the cost.

Referring to fig. 2, in an embodiment of the present invention, the first working assembly 11 includes:

a first battery 111;

the output end of the first switch circuit 112 is used for establishing an electrical connection path with the first earphone when the first earphone is connected, and the controlled end and the second input end of the first switch circuit 112 are respectively connected with the first main control assembly 12;

a first power management circuit 113, an input terminal of the first power management circuit 113 is connected to the first battery 111, and an output terminal of the first power management circuit 113 is connected to a first input terminal of the first switch circuit 112;

a first power management circuit 113, configured to output a charging voltage after performing overvoltage conversion on the battery voltage of the first battery 111;

a first switch circuit 112, configured to, when in a charging mode under the control of the first main control assembly 12, turn on a path between a first input terminal and an output terminal of the first switch circuit 112; alternatively, when the first main control component 12 is in the communication mode, the path between the second input terminal and the output terminal of the first switch circuit 112 is conducted, so that the first main control component 12 and the first headset establish a communication connection when the first headset is connected.

In this embodiment, the first power management circuit 113 may be implemented by using a charging management chip with a voltage conversion function, or may be implemented by using a charging management chip and a DCDC circuit. The first switch circuit 112 may be implemented by a single-pole double-throw switch circuit, such as a single-pole double-throw relay and its peripheral control circuit, or a single-pole double-throw analog switch.

Specifically, when the first main control assembly 12 does not need to communicate with the first earphone, the first switch circuit 112 is controlled to be in the charging mode, that is, the path between the first input terminal of the first switch circuit 112 and the output terminal SC1 is turned on, and at this time, if the first earphone is connected, the first power management circuit 113 can output the charging voltage to the first earphone through the output terminal SC1 of the first switch circuit 112 to charge the first earphone. When the first main control component 12 needs to communicate with the first earphone, the first switch circuit 112 is controlled to be in a communication mode to conduct a path between the second input terminal and the output terminal of the first switch circuit 112, so that the first main control component 12 and the first earphone establish a communication connection when the first earphone is connected.

It will be appreciated that in the absence of a communication requirement, the first master control component 12 generally controls the first switch circuit 112 to be in a charging state, such that the first headset is in a charging state when connected. In addition, the first main control assembly 12 may further control the first switch circuit 112 to be in the communication mode at preset access detection time intervals (set by research and development personnel), at this time, the first main control assembly 12 may send an inquiry signal, and if the first headset is accessed, an headset access response signal may be transmitted back, so that the first main control assembly 12 may confirm that the current first headset is accessed when receiving the headset access response signal, and if the headset access response signal cannot be received within a certain time, it may be confirmed that the current first headset is not accessed.

Through the above arrangement, no matter when the first charging box 10 and the second charging box 20 are used separately/jointly, the user can place the first earphone in the first charging box 10, so as to charge the first earphone while the first charging box 10 accommodates the first earphone, or perform communication interaction with the first earphone. The earphone can meet the requirement of the user on daily independent use of the earphone besides meeting the requirement of the user on using the earphone on a special scene, such as a head-mounted device, and further improves the use convenience of the user.

Referring to fig. 2, in an embodiment of the present invention, the first master control assembly 12 further has a control terminal KZ and a communication terminal T-TX for connecting the connector 30, and the master control assembly is further configured to configure a voltage of the control terminal to a first voltage;

a pull-up circuit 13 is further arranged in the first charging box 10, a first end of the pull-up circuit 13 is connected with a control end of the main control assembly, and a second end of the pull-up circuit 13 is used for connecting the connector 30;

the second working assembly 21 includes:

a second battery 211;

a pull-down circuit 214, the pull-down circuit 214 being configured to form a voltage dividing circuit with the pull-up circuit 13 when the first charging box 10 is electrically connected to the second charging box 20 through the connector 30, so as to divide the first voltage into a second voltage according to a predetermined resistance ratio;

the output end of the second switch circuit 212 is used for establishing an electrical connection path with a second earphone when the second earphone is connected, the controlled end of the second switch circuit 212 is electrically connected with the pull-down circuit 214, both the controlled end and the second input end of the second switch circuit 212 are used for connecting the connector 30, and when the first charging box 10 is used for establishing electrical connection with the second charging box 20 through the connector 30, the communication end of the first main control assembly 12 and the second input end of the second switch circuit 212 establish an electrical connection path;

a second power management circuit 213, an input terminal of the second power management circuit 213 is connected to the second battery 211, and an output terminal of the second power management circuit 213 is connected to a first input terminal of the second switch circuit 212;

a second power management circuit 213, configured to output a charging voltage after performing over-voltage conversion on the battery voltage of the second battery 211;

a second switch circuit 212, configured to turn on a path between a first input terminal and an output terminal of the second switch circuit 212 when a voltage of a controlled terminal of the second switch circuit 212 is lower than a preset switching voltage; when the voltage of the controlled terminal of the second switch circuit 212 reaches the preset switching voltage, the path between the second input terminal and the output terminal of the second switch circuit 212 is conducted, so that the first main control assembly 12 and the second headset are in communication connection when the second headset is connected; wherein the second voltage is greater than the preset switching voltage.

The first master control assembly 12 is further configured to detect a voltage at the second terminal of the pull-up circuit 13, and determine that the first charging box 10 is not electrically connected to the second charging box 20 through the connector 30 when the voltage at the second terminal of the pull-up circuit 13 is determined to be the first voltage; and the number of the first and second groups,

when it is confirmed that the voltage of the second terminal of the pull-up circuit 13 is the second voltage, it is determined that the first charging box 10 establishes an electrical connection with the second charging box 20 through the connector 30, and establishes a communication connection with the second earphone through the connector 30 and the second switching circuit 212.

In this embodiment, it can be seen from the above embodiments that the first master assembly 12 is a master controller, and the master controller can configure its pins to different voltages. The second power management circuit 213 may be implemented by the same circuit as the first power management circuit 113 in the above-mentioned embodiment, the pull-up circuit 13 and the pull-down circuit 214 may be implemented by resistors, and the second switch circuit 212 may be implemented by a single-pole double-throw switch circuit as the first switch circuit 112, for example, a single-pole double-throw relay and its peripheral control circuit, or a single-pole double-throw analog switch. The first voltage, the first resistor R1 in the pull-up circuit 13, and the second resistor R2 in the pull-down circuit 214 are preset by developers according to actual requirements.

Specifically, referring to fig. 6, the second switch circuit 212 is exemplified by a single-pole double-throw relay J1 and a peripheral control circuit thereof, wherein the voltage output by the second battery 211 is the voltage V2 of the second battery 211, the input end of the switch Q1 is connected to the voltage V2 of the second battery 211 provided by the second battery 211, the output end is connected to one end of an electromagnet in the single-pole double-throw relay J1, and the other end of the electromagnet is grounded.

When the first charging box 10 and the second charging box 20 are in the separated state, the pull-down circuit 214 pulls the voltage of the controlled terminal of the switching tube Q1, which is an NPN transistor, to the ground, that is, the voltage of the controlled terminal of the second switching circuit 212 is pulled down to a low level, at this time, the voltage of the controlled terminal of the second switching circuit 212 is lower than the preset switching voltage, the path between the input terminal and the output terminal of the switching tube Q1 is not conducted, and the electromagnet cannot be electrified, the first pin and the third pin of the single-pole double-throw relay J1 are conducted, that is, the path between the first input terminal and the output terminal SC2 of the second switching circuit 212 is conducted, so that the second power management circuit 213213 outputs a charging voltage through the output terminal SC2 of the second switching circuit 212, and if the second earphone is connected at this time, the second earphone can be charged.

When the first charging box 10 and the second charging box 20 are in the combined state, the controlled terminal of the second switch circuit 212 establishes an electrical connection path with the second terminal of the pull-up circuit 13 through the connector 30. At this time, the pull-up circuit 13 and the pull-down circuit 214 form a voltage dividing circuit to adjust the voltage of the controlled terminal of the second switch circuit 212 to a second voltage, and since the second voltage is higher than the preset switching voltage, a path between the input terminal and the output terminal of the switch Q1 is conducted to electrify the electromagnet, so that the first pin and the second pin of the single-pole double-throw relay J1 are conducted, that is, a path between the second input terminal and the output terminal of the second switch circuit 212 is conducted, and at this time, an electrical connection path is established between the communication terminal of the first main control component 12 and the second input terminal of the second switch circuit 212. Then when the second headset is accessed, the first main control assembly 12 can establish a communication connection with the second headset through the communication terminal and the connector 30.

Meanwhile, in this embodiment, the first main control assembly 12 further has a detection end JC, the detection end JC is connected to the second end of the pull-up circuit 13, and an ADC detection module is disposed inside the first main control assembly 12, so that the voltage can be detected through the detection end JC. Since the first master control assembly 12 configures the voltage at the control terminal as a first voltage, if the voltage at the second terminal of the pull-up circuit 13 detected by the first master control assembly 12 according to the detection terminal JC is the first voltage, it may be currently determined that the first charging box 10 is not electrically connected to the second charging box 20 through the connector 30, and if the voltage at the second terminal of the pull-up circuit 13 detected by the first master control assembly 12 according to the detection terminal JC is the second voltage (the resistance values of the first resistor R1 and the second resistor R2 are pre-stored in the first master control assembly 12, so that the second voltage can be calculated according to the first voltage), it may be determined that the first charging box 10 is electrically connected to the second charging box 20 through the connector 30.

It can be understood that when the first charging box 10 and the second charging box 20 are in the combined state, if the second earphone is placed in the accommodating cavity of the second charging box 20, the second earphone also needs to be normally charged. For this purpose, in another embodiment of the present invention, the first main control assembly 12 is further configured to configure the voltage of the control terminal to be a low level voltage after confirming that the first charging box 10 is electrically connected to the second charging box 20 through the connector 30, so that the voltage of the controlled terminal of the second switch circuit 212 is lower than a preset switching voltage, so as to turn on a path between the first input terminal and the output terminal of the second switch circuit 212, so that the second power management circuit 213 outputs a charging voltage to charge the second earphone;

in this embodiment, after the first main control component 12 determines that the first charging box 10 is electrically connected to the second charging box 20 through the connector 30 according to the process in the above embodiment, if there is no communication requirement with the second headset currently, for example, it is detected that the second headset is not connected currently or does not need to communicate with the second headset currently, the voltage of the control terminal is configured to be a low level voltage, so that the voltage of the control terminal of the second switch circuit 212 is lower than the preset switching voltage, so as to turn on a path between the first input terminal and the output terminal of the second switch circuit 212, so as to enable the second power management circuit 213 to output the charging voltage, and if the second headset is connected currently, the second headset is charged. It can be understood that, if communication with the second headset is currently required, or it is required to detect whether the second headset is currently connected through the above-mentioned embodiment, the first main control component 12 will still configure the voltage of the control terminal back to the first voltage, so as to turn on the path between the communication terminal of the first main control component 12 and the output terminal of the second switch circuit 212.

In addition, after the first main control assembly 11 confirms that the first charging box 10 is in a merging state with the second charging box 20 through the connector 30, the first main control assembly 12 is further configured to configure the voltage of the control terminal back to the first voltage every preset detection time, and if the voltage of the second terminal of the pull-up circuit 13 is confirmed to be the second voltage, it is determined that the first charging box 10 is still electrically connected with the second charging box 20 through the connector 30; if it is confirmed that the voltage of the second terminal of the pull-up circuit 13 is the first voltage, it is determined that the first charging box 10 has established the electrical connection with the second charging box 20 without the connector 30.

Through the arrangement, when the second charging box 20 in the split-type earphone box is in a split state, for example, when the second charging box is arranged on one side of the head-mounted device, the requirements of a user on storing the second earphone and charging the second earphone can be met, and the user can pick the second earphone conveniently at any time. Meanwhile, when the second charging box 20 is in a combined state with the first charging box 10 through the connector 30, all functions of a normal earphone charging box can be realized, so that the split charging box and two earphones can interact with each other. The invention not only meets the requirement of using the earphone on the head-wearing equipment under a special scene, but also meets the requirement of independently using the earphone in daily life, thereby further improving the convenience of using the earphone by the user.

Referring to fig. 3, in an embodiment of the present invention, an indication module 14 electrically connected to the first main control assembly 12 is further disposed on the first charging box 10;

the first main control assembly 12 is further configured to control the first switch circuit 112 to be in the communication mode every preset time interval, so as to obtain a first electric quantity signal transmitted from the first earphone, and control the indication module 14 to indicate the electric quantity of the first earphone according to the first electric quantity signal;

the first main control assembly 12 is further configured to configure the voltage of the control terminal to be a first voltage every preset time after confirming that the first charging box 10 is electrically connected with the second charging box 20 through the connector 30, so as to obtain a second electric quantity signal transmitted by the second headset, and control the indication module 14 to indicate the electric quantity of the second headset according to the second electric quantity signal;

the first main control component 12 is further configured to control the indication module 14 to indicate the electric quantity of the earphone with the lower electric quantity according to the first electric quantity signal and the second electric quantity signal.

It can be understood that the controller in the earphone can obtain the current battery capacity of the earphone from the capacity information output by the internal BMS module, and output a corresponding capacity signal when the earphone box requires its output capacity parameter.

Optionally, the indication module 14 may be implemented by using RGB-LED lamps, after the first earphone is connected, the first main control component 12 communicates with the first earphone and requests the first earphone to output a first power signal every preset time (the first main control component 12 is pre-stored by a research and development staff during a research and development period), the first main control component 12 determines a current battery power of the first earphone according to the first power signal output by the first earphone, and controls the RGB lamps to light corresponding colors according to the current battery power, for example, the RGB lamps light red below 20%, the RGB lamps light blue within 20% -60%, and the RGB lamps light green above 60%. Similarly, the number of the RGB-LED lamps may be multiple, so that after the first main control component 12 confirms that the first charging box 10 is electrically connected to the second charging box 20 through the connector 30, that is, when the first charging box 10 and the second charging box 20 are in a merging state through the connector 30 and the second headset is determined to be connected, the electric quantity of the second headset is determined in the same manner, and the corresponding RGB-LED lamps are indicated to emit corresponding lights to prompt the user of the electric quantity of the second headset currently connected.

Optionally, the indication module 14 may also be implemented by using a display screen, and the first main control assembly 12 may determine the electric quantity of the first earphone and/or the second earphone according to the manner in the foregoing embodiment, and display the electric quantity on the display screen.

In addition, the first main control component 12 can only control the indication module 14 to indicate the electric quantity of the earphone with the lower electric quantity according to the first electric quantity signal and the second electric quantity signal so as to remind the user of charging in time, and inconvenience caused by the fact that a certain earphone is powered off in advance to the use of the user is prevented.

With the above arrangement, when the first charging box 10 and the second charging box 20 in the split-type earphone box are used separately, the current electric quantity of the earphone can be displayed in real time when the first earphone is plugged. And when the earphone is connected and used, the electric quantity of the first earphone and/or the second earphone can be indicated at the same time, the requirement of a user on earphone electric quantity prompting in different scenes such as use of the earphone alone at ordinary times or use of the earphone on the head-mounted equipment is met, and the convenience in use of the user is improved.

Referring to fig. 4, in an embodiment of the present invention, a triggering module 15 electrically connected to the first main control assembly 12 is further disposed on the first charging box 10;

the trigger module 15 is used for outputting a corresponding trigger signal when triggered by a user;

the first main control component 12 is further configured to control the first switch circuit 112 to be in a communication mode when receiving the trigger signal, so as to output a corresponding control signal to the first earphone according to the trigger signal;

the first main control component 12 is further configured to configure the voltage of the control terminal to a first voltage after confirming that the first charging box 10 is electrically connected to the second charging box 20 through the connector 30 and when receiving the trigger signal, so as to output a corresponding control signal to the second earphone according to the trigger signal.

In this embodiment, the triggering module 15 may be implemented by a button or a touch module provided on the housing of the first charging box 10.

Specifically, in practical applications, a trigger signal-control signal mapping table (which may be set by research and development personnel according to requirements and pre-stored in the first main control assembly 12) may be pre-stored in the first main control assembly 12, and when a user triggers the trigger module 15 according to different manners to enable the trigger module 15 to output different trigger signals, the first main control assembly 12 invokes corresponding control signals according to the pre-stored trigger signal-control signal mapping table. When the first charging box 10 and the second charging box 20 are in a combined state via the connector 30 and both the first earphone and the second earphone are in an access state, the user may trigger the trigger module 15 to cause the trigger module 15 to output a corresponding trigger signal. When the first main control component 12 receives the trigger signal, the voltage of the control terminal is configured to be the first voltage, so that the second switch circuit 212 is in the communication mode to conduct the path between the communication terminal of the first main control component 12 and the output terminal of the second switch circuit 212, and the first switch circuit 112 is controlled to be in the communication mode to conduct the path between the second input terminal and the output terminal of the first switch circuit 112, so that the first main control component 12 and the first headset establish the communication connection. The first main control component 12 outputs corresponding control signals to the first earphone and the second earphone according to the trigger signal to control the first earphone and the second earphone. For example, when the key is pressed for a long time, the first main control component 12 outputs a bluetooth matching signal to the first earphone and the second earphone, so that the first earphone and the second earphone enter a bluetooth matching state.

With the above arrangement, when the first charging box 10 and the second charging box 20 are combined by the connector 30, the user can control the headset by triggering the trigger module 15. Therefore, the split type earphone box provided by the invention can meet the requirements of a user when the user uses the earphone on a special scene, such as a head-wearing device, and can also meet the requirements of the user for daily independent use of the earphone, thereby further improving the convenience of use of the user.

It is understood that the first main control component 12 may also directly perform a corresponding action according to the trigger signal to implement the control of the user on the first charging box 10, for example, the trigger module 15 is a key, and the user may press the key for a short time, so that the key outputs the corresponding trigger signal to enable the first main control component 12 to control the indication module 14 in the above embodiment to indicate the current power of the first earphone and/or the second earphone.

Referring to fig. 5, in an embodiment of the present invention, the first charging box 10 is further provided with a charging female socket 16 for connecting an external voltage, the charging female socket 16 is connected to the first power management circuit 113, the charging female socket 16 has a power supply connection terminal connected to the first power management circuit 113, and the power supply connection terminal is further used for connecting the connector 30;

a first power management circuit 113, configured to, when receiving an external voltage, output a battery charging voltage to the first battery 111 after performing voltage conversion on the external voltage, so as to charge the first battery 111; and converting the external voltage and outputting a charging voltage;

the second power management circuit 213 further has an external power input terminal for connecting the connector 30, and when the first charging box 10 is electrically connected to the second charging box 20 via the connector 30, an electrical connection path is formed between the external power input terminal and the power supply connection terminal;

a second power management circuit 213, configured to, when receiving an external voltage, perform voltage conversion on the external voltage and output a battery charging voltage to the second battery 211 to charge the second battery 211; and converting the external voltage and outputting a charging voltage;

in this embodiment, the housing of the first charging box 10 may be provided with a corresponding opening corresponding to the interface position of the charging female socket 16, the charging female socket 16 may be implemented by a TYPE-C female socket, a Micro-USB female socket, a USB-a female socket, a Lightning female socket, etc., the power supply connection end of the charging female socket 16 is a pin for accessing an external voltage, and when the charging female socket 16 accesses an external power supply, the power supply connection end of the charging female socket 16 may output the external voltage outputted by the external power supply.

In this embodiment, the first power management circuit 113 and the second power management circuit 213 may include a charging management chip, and the charging management chip may detect whether an external voltage is output from the power supply connection terminal of the charging socket 16, and if no external voltage is output, convert the voltage of the battery into a charging voltage and output the charging voltage, so as to charge the earphone when the earphone is connected. If the external voltage exists currently, the external voltage is subjected to voltage conversion into a battery charging voltage to charge the battery, and meanwhile, the external voltage is subjected to voltage conversion into the charging voltage and output, so that the earphone is charged when the earphone is connected.

Specifically, if the first charging box 10 and the second charging box 20 are in a separated state and an external voltage is separately applied through the charging socket 16, the first power management circuit 113 may convert the external voltage and output a battery charging voltage to the first battery 111 to charge the first battery 111; and converting the external voltage and outputting a charging voltage, so as to charge the first earphone when the first earphone is connected to the first charging box 10 and the first switch circuit 112 is controlled by the first main control assembly 12 to be in a charging mode.

If the first charging box 10 and the second charging box 20 are in the combined state through the connector 30, an electrical connection path is formed between the external power input end of the charging female socket 16 and the power supply connection end of the second power management circuit 213, and when the charging female socket 16 is connected with an external voltage, the second power management circuit 213 can convert the external voltage and then output the battery charging voltage to the second battery 211 to charge the second battery 211; and, converting the external voltage and outputting the charging voltage, so as to charge the second earphone when the second earphone is connected to the second charging box 20 and the first main control component 12 configures the voltage of the control terminal KZ to be a low level voltage (i.e. the second switch circuit 212 turns on the path of the first input terminal and the output terminal), at the same time.

Furthermore, it is understood that in another embodiment of the present invention, the charging female socket 16 is also electrically connected to the first main control assembly 12;

the charging female socket 16 is also used for accessing earphone box updating data or earphone updating data;

the first main control component 12 is further configured to store the earphone box update data in the first main control component 12 when the earphone box update data is received, so as to update the data stored in the first main control component 12;

the first main control component 12 is further configured to control the first switch circuit 112 to be in a communication mode when receiving the headset update data, so as to upload the headset update data to the first headset;

the first main control component 12 is further configured to configure the voltage of the control terminal to be the first voltage after confirming that the first charging box 10 is electrically connected to the second charging box 20 through the connector 30 and when receiving the headset update data, so as to upload the headset update data to the second headset.

In this embodiment, a user may access an external terminal, such as a computer, a tablet, a mobile phone, etc., through the charging female socket 16, and the charging female socket 16 is further provided with a communication pin connected with the first main control component 12 to access earphone box update data or earphone update data transmitted from the external terminal.

Specifically, when the first main control component 12 receives the earphone box update data, the earphone box update data is stored in an internal storage module, so as to update the originally stored data. If the user needs to update the data in the first earphone, the first earphone is placed in the accommodating cavity of the first charging box 10, and the external terminal is controlled to output the earphone update data through the charging female socket 16, and when receiving the second update data, the first main control assembly 12 controls the first switch circuit 112 to be in the communication mode, so as to upload the earphone update data to the first earphone.

If a user needs to update data in the first earphone and the second earphone at the same time, the user may need to put the first charging box 10 and the second charging box 20 in a combined state through the connector 30, and put the first earphone into the accommodating cavity of the first charging box 10 and put the second earphone into the accommodating cavity of the second charging box 20 at the same time, and control the external terminal to output earphone update data through the charging female socket 16, after confirming that the first charging box 10 is electrically connected with the second charging box 20 through the connector 30 and when receiving the earphone update data, the first main control assembly 12 configures the voltage of the control terminal as a first voltage to turn on a path between the communication terminal T-TX and the output terminal of the second switch circuit 212, so as to output the earphone update data to the second earphone to update the program in the earphone.

Through the above arrangement, when the first charging box 10 and the second charging box 20 are combined through the connector 30 for use, a user can simultaneously charge the first battery 111 in the first charging box 10 and the second battery 211 in the second charging box 20 through the charging female socket 16, and can update the programs of the first main control component 12, the first earphone and the second earphone in the first charging box 10 at any time through the charging female socket 16, and can also realize the mutual communication between the external terminal and the first earphone and the second earphone through the charging female socket 16, so that the requirements of the user when the user uses the earphone on a head-mounted device in a special scene, for example, the requirements of the user when the user uses the earphone on the head-mounted device, can be met simultaneously, and the convenience in use of the user is further improved.

In an embodiment of the present invention, a first connection interface is disposed on the first charging box 10, and the first connection interface includes a plurality of connection ends electrically connected to the first main control assembly 12;

the second charging box 20 is provided with a second connection interface, and the second connection interface comprises a plurality of connection ends electrically connected with the second working assembly 21;

the connector 30 comprises a flat cable, a first connector is arranged at the first end of the flat cable, and a second connector is arranged at the second end of the flat cable; when the first connector is connected to the first connection interface and the second connector is connected to the second connection interface, the connection ends of the first connection portions and the connection ends of the second connection portions are connected in a one-to-one correspondence manner.

In this embodiment, the first connection interface can be realized by using the interface female socket of the first connector of the adaptive flat cable, and similarly, the second connection interface can be realized by using the interface female socket of the second connector of the adaptive flat cable. The plurality of connection terminals in the first connection interface may also be electrically connected to devices in other circuits in the above-described embodiments, such as the charging female socket 16.

Specifically, when the user needs to combine the first charging box 10 and the second charging box 20 for use, it is only necessary to insert the first connector into the first connection interface and insert the second connector into the second connection interface. In this way, referring to fig. 5, it is possible to establish an electrical connection path between the second terminal of the pull-up circuit 13 and the controlled terminal of the second switch circuit 212, to establish an electrical connection path between the communication terminal T-TX of the first main control component 12 and the first input terminal of the second switch circuit 212, and to establish an electrical connection path between the power supply connection terminal of the charging female socket 16 and the external power supply access terminal of the second power management circuit 213.

Alternatively, in another embodiment, the connector 30 includes a first connection portion provided on the first charging cartridge 10 and a second connection portion provided on the second charging cartridge 20;

the first connecting part comprises a first magnetic piece and a plurality of connecting ends electrically connected with the first main control assembly 12;

the second connecting part comprises a second magnetic part and a plurality of connecting ends electrically connected with the second working assembly 21;

the first connecting part is magnetically connected with the second connecting part through the first magnetic part and the second magnetic part, so that the first charging box 10 is electrically connected with the second charging box 20 through the connector 30; when the first charging box 10 establishes electrical connection with the second charging box 20 through the connector 30, the connection ends of the plurality of first connection parts and the connection ends of the plurality of second connection parts are connected in one-to-one correspondence.

In an embodiment, the first connecting portion may further be provided with a limiting member, and the second connecting portion may be provided with a corresponding limiting groove corresponding to the limiting member of the first connecting portion, so that when the first charging box 10 is electrically connected to the second charging box 20 through the connector 30, the limiting member is just inserted into the limiting groove, thereby ensuring that the plurality of connecting ends on the first connecting portion can correctly establish an electrical connection path with the plurality of connecting ends on the plurality of second connecting portions.

Through the above arrangement, in practical applications, a user can realize that the first charging box 10 and the second charging box 20 are in a combined state without a special independent connector 30, and convenience in use for the user is improved.

The invention also provides an earphone assembly which comprises a first earphone, a second earphone and any one split-type earphone box

It should be noted that, because the earphone component of the present invention is based on the split-type earphone box, the embodiment of the earphone component of the present invention includes all technical solutions of all embodiments of the split-type earphone box, and the achieved technical effects are also completely the same, which are not described herein again.

The invention further provides a head-mounted device which comprises the earphone assembly.

In this embodiment, the head-mounted device includes a device main body, and both sides of the device main body may be respectively provided with a placing groove for placing and fixing the first charging box/the second charging box. So, in user's in-service use, can be very convenient snatch the earphone from the left and right sides to when not using the earphone, can also put back the earphone in corresponding charging box and charge to the earphone, improved the convenience that the user used.

It should be noted that, because the headset device of the present invention is based on the above-mentioned earphone assembly, the embodiment of the headset device of the present invention includes all technical solutions of all embodiments of the above-mentioned earphone assembly, and the achieved technical effects are also completely the same, and are not described herein again.

The above description is only an alternative embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings or directly/indirectly applied to other related technical fields under the inventive concept of the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a split type earphone box is applied to earphone subassembly, earphone subassembly includes first earphone and second earphone, its characterized in that, split type earphone box includes:

a connector through which the first charging box is electrically connected to the second charging box;

2. The split type earphone box of claim 1, wherein the first working assembly comprises:

a first battery;

the first power supply management circuit is used for converting the battery voltage of the first battery into over-voltage and outputting charging voltage;

the first switch circuit is used for conducting a path between a first input end and an output end of the first switch circuit when the first main control assembly is controlled to be in a charging mode; or when the first master control assembly is controlled to be in a communication mode, a path between the second input end and the output end of the first switch circuit is conducted, so that the first master control assembly and the first earphone are in communication connection when the first earphone is connected.

3. The split type earphone box of claim 2, wherein the first main control assembly further has a control terminal and a communication terminal for connecting to the connector, and the first main control assembly is further configured to configure the voltage of the control terminal to a first voltage;

the second working assembly includes:

a second battery;

the second switch circuit is used for conducting a path between a first input end and an output end of the second switch circuit when the voltage of the controlled end of the second switch circuit is lower than a preset switching voltage; when the voltage of the controlled end of the second switch circuit reaches a preset switching voltage, a path between a second input end and an output end of the second switch circuit is conducted, so that the first main control assembly and the second earphone are in communication connection when the second earphone is connected; wherein the second voltage is greater than the preset switching voltage;

determining that the first charging box is electrically connected to the second charging box via the connector when the voltage of the second terminal of the pull-up circuit is confirmed to be the second voltage.

4. The split-type earphone box of claim 3, wherein the first main control component is further configured to configure the voltage of the control terminal to be a low-level voltage after confirming that the first charging box is electrically connected to the second charging box through the connector, so that the voltage of the controlled terminal of the second switch circuit is lower than a preset switching voltage, and a path between the first input terminal and the output terminal of the second switch circuit is conducted, so that the second power management circuit outputs the charging voltage;

the first main control assembly is further configured to configure the voltage of the control terminal back to a first voltage every preset detection time interval, and if the voltage of the second terminal of the pull-up circuit is determined to be a second voltage, it is determined that the first charging box is still electrically connected with the second charging box through the connector; and if the voltage of the second end of the pull-up circuit is confirmed to be the first voltage, determining that the first charging box is not electrically connected with the second charging box through the connector.

5. The split type earphone box of claim 4, wherein the first charging box is further provided with an indication module electrically connected with the first main control assembly;

the first main control assembly is further configured to configure the voltage of the control terminal to be a first voltage at intervals of a preset time after the first charging box is confirmed to be electrically connected with the second charging box through the connector, so as to obtain a second electric quantity signal transmitted by the second earphone, and control the indicating module to indicate the electric quantity of the second earphone according to the second electric quantity signal.

6. The split type earphone box according to claim 4, wherein the first charging box is further provided with a trigger module electrically connected with the first main control assembly;

the first main control assembly is further configured to control the first switch circuit to be in a communication mode and configure the voltage of the control terminal to be a first voltage when the trigger signal is received after the first charging box is confirmed to be electrically connected with the second charging box through the connector, so as to output a corresponding control signal to the first earphone and the second earphone according to the trigger signal.

7. The split-type earphone box of claim 4, wherein the first charging box is further provided with a charging female socket for accessing an external voltage, the charging female socket is provided with a power supply connection end connected with the first power management circuit, and the power supply connection end is further used for connecting the connector;

the second power management circuit is also provided with an external power input end used for being connected with the connector, and when the first charging box is electrically connected with the second charging box through the connector, an electric connection path is formed between the external power input end and the power supply connection end;

the second power management circuit is used for converting the external voltage and outputting a battery charging voltage to the second battery to charge the second battery when receiving the external voltage; and converting the external voltage and outputting the charging voltage.

8. The split type earphone box of claim 7, wherein the charging female socket is further electrically connected with the first main control assembly;

the first master control assembly is further configured to control the first switch circuit to be in a communication mode when the earphone update data is received, so as to upload the earphone update data to the first earphone;

9. The split type earphone box of any one of claims 1 to 8, wherein the connector comprises a first connecting portion disposed on the first charging box and a second connecting portion disposed on the second charging box;

10. The split-type earphone box according to any one of claims 1 to 8, wherein a first connection interface is disposed on the first charging box, and the first connection interface comprises a plurality of connection ends electrically connected to the first main control assembly;

11. A headset assembly comprising a first headset, a second headset and a split headset case of any of claims 1-10.

12. A head-mounted apparatus comprising the earphone assembly of claim 11.