CN212626410U - External device of mobile terminal - Google Patents

Abstract

The utility model discloses a mobile terminal's external device relates to terminal hardware technical field. The external equipment of the mobile terminal comprises a trunk, a first bending part, a second bending part, a first equipment interface and a second equipment interface; the trunk, the first bending part and the second bending part are matched with the side edge of the mobile terminal; the first equipment interface is positioned on the inner surface of the first bending part; the second equipment interface is positioned on the outer surface of the trunk; the first equipment interface is electrically connected with the second equipment interface. When the external equipment of the mobile terminal works, under the condition of being matched with the appearance of the mobile terminal, the first equipment interface and the second equipment interface which are electrically connected are arranged, when the electronic access equipment is connected with the second equipment interface, namely, the electronic access equipment is connected with the first equipment interface which is shielded due to the fact that the electronic access equipment is in a horizontal screen holding mode, the conflict between the connecting line and the holding position of the electronic access equipment in a horizontal holding state is avoided, and the use efficiency of the electronic access equipment is improved.

Description

External device of mobile terminal

Technical Field

The utility model relates to a terminal hardware technical field, in particular to mobile terminal's external device.

Background

With the development of technology, a mobile terminal such as a mobile phone or a tablet device is provided with a terminal interface on a frame, and the terminal interface is used for connecting the device with an electronic access device such as a charger or an earphone.

In the related art, the mobile terminal further has a plurality of display modes, such as a landscape display mode and a portrait display mode. And when the mobile terminal is in the horizontal screen display mode, the mobile terminal is held in a holding mode corresponding to the horizontal screen display mode.

However, when the user uses the mobile terminal in a holding manner corresponding to the landscape display mode, the terminal interface of the mobile terminal is blocked, so that the efficiency of connecting the mobile terminal with the electronic access device is reduced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a mobile terminal's external device can improve mobile terminal's availability factor. The technical scheme of the external equipment of the mobile terminal is as follows:

the external equipment of the mobile terminal comprises a trunk, a first bending part, a second bending part, a first equipment interface and a second equipment interface;

the first end of the main part is connected with the first bending part, and the second end of the main part is connected with the second bending part;

the trunk, the first bending part and the second bending part are matched with the side edge of the mobile terminal;

the first equipment interface is positioned on the inner surface of the first bending part and is used for being connected with a terminal interface of the mobile terminal;

the second equipment interface is positioned on the outer surface of the trunk and is used for being connected with the electronic access equipment;

the first equipment interface is electrically connected with the second equipment interface.

In one possible implementation, the number of second device interfaces is at least two.

In one possible implementation, the at least two second device interfaces are of different kinds from each other.

In one possible implementation, the category of the second device interface includes: at least two of a Universal Serial Bus (USB) interface, a lightning (lightning) interface, a Type-C interface, and a circular earphone hole interface.

In one possible implementation, the trunk has a drum;

the second apparatus interface is located on an outer surface of the drum.

In a possible implementation manner, the rotary drum also comprises a bearing axially penetrating through the rotary drum;

the bearing is connected with the trunk in a sleeved mode.

In a possible realization mode, the bottom surface of the rotary drum is provided with at least two openings, and the trunk is internally provided with a bolt matched with the openings;

the distances from the at least two open holes to the circle center of the bottom surface of the rotary drum are equal;

when the rotary drum is in an active state, the first end of the bolt is opposite to the bottom surface of the rotary drum;

when the rotary drum is in a limiting state, the first end of the bolt is inserted into the rotary drum through the opening.

In one possible implementation, a spring is provided within the stem;

the second end of the bolt is connected with the spring.

In one possible implementation, the surface of the trunk has a chute;

the bolt is provided with a handle, and the handle protrudes out of the surface of the trunk through the sliding groove.

In a possible implementation manner, the external device further includes at least one game shoulder key;

the game shoulder key is electrically connected with the first equipment interface.

The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:

when the external device of the mobile terminal works and is matched with the appearance of the mobile terminal, the first device interface and the second device interface which are electrically connected are arranged, when the electronic access device is connected with the second device interface, the electronic access device is connected with the first device interface which is shielded due to the fact that the electronic access device is in a horizontal screen holding mode, the conflict between the connecting line and the holding position of the electronic access device in a horizontal holding state is avoided, and the use efficiency of the electronic access device is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

Drawings

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

Fig. 1 is a schematic structural diagram illustrating an external device of a mobile terminal according to an exemplary embodiment of the present invention;

fig. 2 is a schematic diagram illustrating an external device of a mobile terminal according to an exemplary embodiment of the present invention is connected to the mobile terminal;

fig. 3 is a schematic diagram illustrating an external device of a mobile terminal provided with two device interfaces on a backbone according to an exemplary embodiment of the present invention;

fig. 4 is a schematic diagram illustrating an external device of a mobile terminal according to another exemplary embodiment of the present invention;

FIG. 5 illustrates a schematic view of a bottom surface of a rotating drum provided by an exemplary embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating the position of the latch and the drum in different states according to an exemplary embodiment of the present invention;

fig. 7 is a diagram illustrating a change of a relative position relationship between an electronic access device and a mobile terminal according to an exemplary embodiment of the present invention;

fig. 8 is a schematic structural diagram illustrating an external device of a mobile terminal according to another exemplary embodiment of the present invention;

fig. 9 is a schematic structural diagram illustrating connection between an external device of a mobile terminal, a terminal and a smart watch according to an exemplary embodiment of the present invention;

fig. 10 shows a logic block diagram of a circuit provided by an exemplary embodiment of the present invention;

fig. 11 is a schematic structural diagram illustrating an external device of a mobile terminal, a terminal and a power adapter according to an exemplary embodiment of the present invention;

fig. 12 shows a logic block diagram of a circuit provided by an exemplary embodiment of the present invention.

The various reference numbers in the drawings are illustrated below:

1-external equipment;

11-a trunk, 12-a first bending part, 13-a second bending part, 14-a first equipment interface, 15-a second equipment interface, 16-a reel, 17-a game shoulder key;

101-a micro control unit, 102-a USB hub, 103-a USB audio chip and 104-an external equipment discharging component;

111-bolt, 112-spring, 113-chute;

1111-a handle;

161-bearing, 162-bowl floor, 163-opening;

1631-a first opening, 1632-a second opening;

171-first game shoulder key, 172-second game shoulder key;

2-a mobile terminal;

21-first side, 22-second side, 23-third side, 24-terminal interface;

201-central processing unit, 202-battery, 203-mobile terminal discharging component;

3-a display screen;

4-a smart watch;

401-Type-C interface female seat, 402-display, 403-central processing unit, 404-battery, 405-smart watch discharging component;

5-a power adapter;

51-a charging wire; 52-AC power plug;

501-Type-C interface female seat, 502-micro control unit, 503-power output unit and 504-protective resistor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides an external device for connecing in the mobile terminal outside, this external device's appearance and mobile device adaptation, at the in-process that uses this external device, can make the electron such as charger or earphone insert external device, need not the terminal interface of direct access mobile terminal, can be connected with mobile terminal and get into operating condition, avoid holding the connecting wire of electron access device under the state and holding the position conflict.

It should be noted that, in the embodiments of the present invention, the "external device" refers to "an external device of the mobile terminal.

Fig. 1 shows a structure diagram of an external device 1 of a mobile terminal according to an exemplary embodiment of the present invention, where the external device 1 includes: the device comprises a main body 11, a first bending part 12, a second bending part 13, a first device interface 14 and a second device interface 15. The first end of the trunk 11 is connected to the first bending portion 12, and the second end is connected to the second bending portion 13. The trunk 11, the first bending part 12 and the second bending part 13 are matched with the side of the mobile terminal. The first device interface 14 is located on the inner surface of the first bending portion 12, and the first device interface 14 is used for being connected with a terminal interface 24 of the mobile terminal; the second device interface 15 is located on the outer surface of the backbone 11, and the second device interface 15 is used for connecting with an electronic access device. The first device interface 14 is electrically connected to the second device interface 15.

The main portion 11 is located between the first bending portion 12 and the second bending portion 13, and the main portion 11, the first bending portion 12, and the second bending portion 13 are made of the same material. In one example, the material of the trunk 11, the first bent portion 12, and the second bent portion 13 is plastic.

Fig. 2 shows a connection mode of the external device 1 and the mobile terminal 2. The mobile terminal 2 has a first side 21 and a second side 22 opposite to each other, and a third side 23 located between the first side 21 and the second side 22. The shape and length of the trunk 11 match the shape and length of the third side 23, while the length of the first fold 12 is less than or equal to the length of the first side 21 and the length of the second fold 13 is less than or equal to the length of the second side 22.

The mobile terminal 2 has a terminal interface 24 on the first side 21. The terminal interface 24 is an interface for the mobile terminal 2 to connect with an electronic access device. In the embodiment of the present invention, the female socket with the terminal interface 24 implemented as an interface is taken as an example for explanation.

The terminal interface 24 is used as an interface female seat and connected with an interface male seat of the electronic access equipment, so that the mobile terminal 2 is electrically connected with the electronic access equipment. In one example, the terminal interface 24 is a female socket of a lightning (lightning) interface, and the electronic access device is a charger having a male socket of the lightning interface, so that the charger can supply power to the mobile terminal 2 by connecting the female socket of the lightning interface with the male socket of the lightning interface.

The first device interface 14 is opposite the terminal interface 24. When the external device 1 is connected with the mobile terminal 2, the first device interface 14 is accessed to the terminal interface 24. In this case, the first device interface 14 is realized as an interface male socket that is adapted to the terminal interface 24 (as an interface female socket).

A second device interface 15 is located on the backbone 11. Optionally, the second device interface 15 is a male socket interface, and is used for being connected with a female socket of the electronic access device; or, the second device interface 15 is a female socket interface for connecting with a male socket of the electronic access device.

Optionally, an electric wire is arranged in the external device 1, and the first device interface 14 is electrically connected with the second device interface 15 through the electric wire; or, a flexible circuit board is disposed in the external device 1, and the first device interface 14 is electrically connected to the second device interface 15 through the flexible circuit board.

When the external device 1 works and is matched with the appearance of the mobile terminal 2, the first device interface 14 and the second device interface 15 which are electrically connected are arranged, when the electronic access device is connected with the second device interface 15, namely, the electronic access device is connected with the first device interface 14 which is shielded due to the fact that the electronic access device is in a horizontal screen holding mode, the conflict between the connecting line and the holding position of the electronic access device in a horizontal holding state is avoided, and the use efficiency of the electronic access device is improved.

The following explains the implementation form and number of the second device interface 15:

in one example, the number of the second device interfaces 15 is at least two, and the at least two second device interfaces 15 are different in kind from each other. For example, the kinds of the second device interface 15 include: at least two of a Universal Serial Bus (USB) interface, a lightning interface, a Type-C interface, and a circular headphone jack interface.

Fig. 3 shows a schematic diagram of two second device interfaces 15 provided on the backbone 11. In fig. 3, the two second device interfaces 15 are a Type-C interface and a circular headphone jack interface, respectively. In this case, the Type-C interface is a male socket for connecting with a Type-C interface female socket of the electronic access device; the circular earphone hole interface is a female seat and is used for being connected with a circular earphone hole interface male seat of the electronic access equipment. In one example, the electronic access device interfacing with Type-C is a charger and the electronic access device interfacing with the circular headphone jack is a headphone.

When the second device interface 15 is a Type-C interface and the external device 1 is connected to the electronic access device through the second device interface 15, the interface state of the Type-C interface may be determined according to the voltage states of two Configuration Communication (CC) pins in the second device interface 15, so as to obtain the Type of the electronic access device accessing the second device interface 15.

The following table one shows a corresponding relationship table between the state of the CC pin and the interface state of the Type-C interface, where the first CC pin is denoted by CC1, and the second CC pin is denoted by CC 2:

table one: correspondence table of states of two CC pins and interface states of Type-C interface

As shown in the first table, the states of the two CC pins and the interface state of the Type-C interface have nine different corresponding relationships, where the first resistor and the second resistor represent two preset resistors for indicating two different pin charging states:

(1) when the first CC pin and the second CC pin are both in an opening state, the Type-C interface is not connected with any equipment;

(2) when the first CC pin is provided with a first resistor and the second CC pin is in an open state, the Type-C interface faces an upstream port, and the male seat is positively connected with the female seat in an inserting manner;

(3) when the first CC pin is in an open state and the second CC pin is provided with a first resistor, the Type-C interface is faced to an upstream port, and the male seat is connected with the female seat in a reverse insertion mode;

(4) when the first CC pin is in an open state and the second CC pin is provided with a second resistor, the fact that the Type-C interface needs to be supplied with power is indicated, the Type-C interface does not face an upstream port (namely faces a downstream port or has a dual-role port), and the male socket and the female socket are positively connected;

(5) when the first CC pin is provided with a second resistor and the second pin is in an open state, the fact that the Type-C interface needs to be supplied with power is shown, the Type-C interface does not face an upstream port, and the male seat is positively connected with the female seat in an inserting mode;

(6) when the first CC pin is provided with a first resistor and the second CC pin is provided with a second resistor, the Type-C interface needs to be powered, the upstream port is faced, and the male socket and the female socket are positively connected;

(7) when the first CC pin is provided with the second resistor and the first pin is provided with the first resistor, the Type-C interface needs to be powered, the upstream port faces the upstream port, and the male seat is connected with the female seat in a reverse plug mode;

(8) when the first CC pin and the second CC pin are both provided with a first resistor, the Type-C interface is connected with the electronic access equipment of the debugging interface;

(9) and when the first CC pin and the second CC pin are both provided with the second resistor, the Type-C interface is connected with the electronic access equipment for playing the audio.

Above-mentioned external device 1 through set up the different second equipment interface 15 of a plurality of kinds on trunk 11, makes external device 1 can be connected with a plurality of electron access devices, has further improved the availability factor of electron access device.

The state of CC pin through Type-C interface is confirmed to the demonstration Type-C interface to confirm with the Type that inserts the equipment through the electron that external equipment 1 is connected with mobile terminal 2, further improved the availability factor that inserts the equipment of electron.

Fig. 4 shows a schematic diagram of an external device 1 of a mobile terminal according to another exemplary embodiment of the present invention. The external device 1 includes a main portion 11, a first bent portion 12, a second bent portion 13, a first device interface 14, a second device interface 15, a drum 16, a bearing 161, and a plug 111.

In one example, the second device interface 15 is located on an outer surface of the drum 16.

In this example, the trunk 11 is provided with a receiving space, and the drum 16 is located in the receiving space. Alternatively, the diameter of the drum 16 is equal to the diameter of the stem 11, the stem 11 being divided into two parts by the drum 16; alternatively, the diameter of the drum 16 is smaller than the diameter of the stem 11, and a portion of the drum 16 is wrapped within the stem 11. The drum 16 can rotate inside the trunk 11.

As shown in fig. 4 by the positional relationship between the drum 16 and the second apparatus interface 15, the second apparatus interface 15 is located at a fixed position on the surface of the drum 16 and can move rotationally with the drum 16. When the second device interface 15 is located on the surface of the rotating drum 16, the first device interface 14 and the second device interface 15 are electrically connected through a flexible component to adapt to the deformation of the internal structure caused by the rotation of the rotating drum 16.

In the present embodiment, the bowl 16 is fitted to the bearing 161 and rotates with the bearing 161 as a rotation axis. Optionally, both ends of the bearing 161 are sleeved in the trunk 11, or one end of the bearing 161 is integrally formed with the trunk 11, and the other end is sleeved in the trunk 11.

In one example, the drum bottom surface 162 has at least two openings 163, and the stem 11 has a pin 111 therein that fits into the openings 163. The at least two openings 16 are equidistant from the center of the bottom surface 162 of the bowl. When the drum 16 is in the active state, the first end of the latch 111 is opposite the drum bottom surface 162; when the drum 16 is in the limit position, the first end of the latch 111 is positioned within the opening 163. A second end of the latch 111 is connected to a spring 112. The surface of the trunk 11 has a chute 113. Latch 111 has a handle 1111 that projects through slot 113 from the surface of backbone 11.

Fig. 5 shows a drum 16 having at least two openings 163 in a bottom surface 162 of the drum, and as shown in fig. 5, the bottom surface 162 of the drum includes 6 openings 163. The 6 openings 163 are equidistant from the center of the bottom surface 162 of the bowl. In one example, the bowl floor 162 may be implemented as a flange.

A plug 111 is provided in the stem 11 corresponding to the drum bottom surface 162. In this embodiment, the latch 111 has a handle 1111 perpendicular to a trunk of the latch 111, a sliding slot 113 corresponding to the handle 1111 is formed on a surface of the trunk 11, and the handle 1111 can control an axial position of the latch 111 to insert the latch 111 into the opening 163 or withdraw from the opening 163.

Fig. 6 shows the positional relationship of the latch 111 and the drum 16 in different states: when the latch 111 is in the working state, the first end of the latch 111 is inserted into the opening 163, and at this time, the drum 16 is correspondingly in the limiting state; when the latch 111 is in the non-operating state, the first end of the latch 111 is not inserted into the opening 163 and is opposite to the bottom surface 162 of the drum 16 having the opening 163, and the drum 16 is in the active state. In this case, the second end of the latch 111 corresponds to a spring 112 for providing an elastic force for the movement of the latch 111.

Fig. 7 is a schematic diagram illustrating the relative positions of the electronic access device and the mobile terminal 2 when the plug 111 is inserted into different openings 163 under the condition that the external device 1 of the mobile terminal is connected to the same electronic access device. Please refer to fig. 7. The electronic access device is a display 3, and the display 3 and the mobile terminal 2 are all embodied in a side view. The number of the openings 163 is two, which are respectively a first opening 1631 and a second opening 1632, and a central angle formed by the first opening 1631 and the second opening 1632 is 45 degrees. The second device interface 15 is located on the surface of the drum 16 and corresponds to the position of the first opening 1631. When the plug pin 111 is inserted into the first opening 1631, the angle formed by the display 3 and the mobile terminal 2 is 180 °, and when the plug pin 111 is inserted into the second opening 1632, the angle formed by the display 3 and the mobile terminal 2 is 135 °.

The rotating drum 16 is arranged at the position of the second device interface 15, and the second device interface 15 is arranged on the rotating drum 16, so that the angle formed by the second device interface 15 and the mobile terminal 2 can be adjusted at will, and the electronic access device can be adapted to electronic access devices with different shapes, and the use efficiency of the electronic access device is further improved.

Through setting up bolt 111 and trompil 163, carry out the fixed of the rotational position of rotary drum 16, make second equipment interface 15 can be fixed when being in suitable position, when having improved electronic access equipment and being connected with external equipment 1, overall structure's stability.

Through setting up handle 1111 of protrusion in the spout 113 on trunk 11 surface, make the user adjust the position of bolt 111 according to the demand of oneself, and then change the state of rotary drum 16, improved the availability factor of rotary drum 16.

Fig. 8 shows a schematic structural diagram of an external device 1 of a mobile terminal according to an exemplary embodiment of the present invention. The external device 1 comprises a main part 11, a first bending part 12, a second bending part 13, a first device interface 14, a second device interface 15 and two game shoulder keys 17. The game shoulder key 17 is located on the trunk 11, and the game shoulder key 17 is electrically connected to the first device interface 14.

The game shoulder keys 17 are physical keys provided on the backbone 11. The game shoulder key 17 is connected into the circuit of the external device 1. When the game shoulder key 17 is pressed, a pressing signal is generated and is used for being sent to the mobile terminal, and the mobile terminal can execute corresponding operation according to the pressing signal. In one example, different pressing signals may be generated by different pressing patterns of the game shoulder keys 17.

The number of the game shoulder keys 17 is at least one. Fig. 8 shows that the number of game shoulder keys 17 is 2, and the two game shoulder keys 17 are distributed symmetrically to the center line of the trunk 11.

By arranging the game shoulder key 17 on the trunk 11 of the external device 1, the game shoulder key 17 generates a pressing signal when being pressed and transmits the pressing signal to the mobile terminal 2, so that the mobile terminal 2 can execute corresponding operation according to the pressing signal, and the control efficiency of the mobile terminal 2 is improved.

When the first device interface 14 and the second device 15 interface are both realized as a Type-C interface common seat, fig. 9 shows the structure diagram of the external device 1, the mobile terminal 2 and the smart watch 4 provided by the exemplary embodiment of the present invention. Referring to fig. 9, the external device 1 includes a main portion 11, a first bending portion 12, a second bending portion 13, a first device interface 14, and two second device interfaces 15. Wherein, include first recreation shoulder key 171 and second recreation shoulder key 172 on the trunk 11, second equipment interface 15 includes a 3.5mm earphone hole and the public seat of a Type-C interface.

Fig. 10 shows a logic block diagram of the circuit operation based on fig. 9. In this connection state, the terminal interface 24 of the mobile terminal 2 is in the downstream-facing port mode, the first device interface 14 connected to the terminal interface 24 of the mobile terminal 2 is in the upstream-facing port mode, correspondingly, the second device interface 15 is in the downstream-facing port mode, and the Type-C interface female socket 401 connected to the smart watch 4 and the second device interface 15 is in the upstream-facing port mode. The power direction is from the equipment flow direction of the equipment of the downstream port of face to the equipment of the upstream port of face, promptly, under this mode, mobile terminal 2 supplies power to external device 1 and intelligent wrist-watch 4. The mobile terminal 2 further comprises a central processing unit 201, a battery 202 and a mobile terminal discharging component 203.

The main body 11 of the external device 1 further includes a left game shoulder key 171 and a right game shoulder key 172, which are connected to the port expander on the micro control unit 101 of the external device 1. Optionally, the port expander is a General-Purpose Input/Output (GPIO) port expander. The input signals of the left game shoulder key 171 and the right game shoulder key 172 are collected by the micro control unit 101, input into the USB hub 102 through the first USB2.0 interface of the external device 1, bridged by the USB hub 102, and accessed into the central processing unit 201 of the mobile terminal 2 through the second USB2.0 interface, so as to implement the input of the signals.

When a 3.5mm earphone hole in the second device interface 105 is inserted into an earphone to play music, a signal of the 3.5mm earphone hole is transmitted by the USB audio chip 103 in the external device 1 and is sent to the central processing unit 201 of the mobile terminal 2 in the form of a USB3.0 signal, so that input and output of a signal corresponding to the 3.5mm earphone hole are realized. In addition, the external device 1 further includes an external device discharging component 104.

The intelligent watch 4 is provided with a Type-C interface female seat 401 corresponding to the Type-C interface, and the intelligent watch 4 is connected with the external equipment 1 through the Type-C interface female seat 401 and the second equipment interface 15. The smart watch 4 sends a USB3.0 signal to the USB hub 102 of the external device 1 through the second device interface 15, bridges the USB hub 102, and connects to the central processing unit 201 of the mobile terminal 2 through the first device interface 14, so as to implement interconnection between the smart watch 4 and the mobile terminal 2 based on the USB3.0 signal. Optionally, an application program capable of sending a signal receiving request to the mobile terminal 2 through the external device 1 is installed in the smart watch 4, and through the USB3.0 signal, the mobile terminal 2 may also send the signal to the smart watch 4 for the smart watch 4 to display. The smart watch 4 further includes a display 402, a central processor 403, a battery 404, and a smart watch discharging assembly 405.

When the first device interface 14 and the second device interface 15 are both realized as a Type-C interface common seat, fig. 11 shows a schematic structural diagram of the external device 1, the mobile terminal 2 and the power adapter 5 provided by an exemplary embodiment of the present invention. Referring to fig. 11, the external device 1 includes a main portion 11, a first bending portion 12, a second bending portion 13, a first device interface 14, and a second device interface 15. Wherein, second equipment interface 15 is the public seat of a Type-C interface. The power adapter 5 further includes a charging cord 51 and an ac power plug 52.

Fig. 12 shows a logic block diagram of the circuit operation based on fig. 11. In this connection state, the terminal interface 24 of the mobile terminal 2 is in the upstream port facing mode, the first device interface 14 connected to the terminal interface 24 is in the downstream port facing mode, the Type-C interface common seat in the second device interface 15 is in the upstream port facing mode, and the Type-C interface female seat 501 connected to the power adapter 5 and the second device interface 15 is in the downstream port facing mode. The direction of the current flows from the device facing the downstream port mode to the device facing the upstream port mode, i.e., in this case, both the mobile terminal 2 and the external device 1 are supplied with power by the power adapter 5. Optionally, the external device 1 still corresponds to the micro control unit 101, the USB hub 102, the USB audio chip 103, and the external device discharging component 104; the power adapter 5 includes a Type-C interface female socket 501, a micro control unit 502, a power output unit 503, and a protection resistor 504.

Above-mentioned all optional technical scheme can adopt arbitrary combination to form the optional embodiment of this utility model, and the repeated description is no longer given here.

The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. An external device (1) of a mobile terminal, the external device (1) comprising: the device comprises a main part (11), a first bending part (12), a second bending part (13), a first device interface (14) and a second device interface (15);

the first end of the main part (11) is connected with the first bending part (12), and the second end of the main part is connected with the second bending part (13);

the main part (11), the first bending part (12) and the second bending part (13) are matched with the side edge of the mobile terminal (2);

the first device interface (14) is located on the inner surface of the first bending part (12), and the first device interface (14) is used for being connected with a terminal interface (24) of the mobile terminal (2);

the second equipment interface (15) is positioned on the outer surface of the trunk (11), and the second equipment interface (15) is used for being connected with electronic access equipment;

the first equipment interface (14) is electrically connected with the second equipment interface (15).

2. External device (1) according to claim 1, characterized in that the number of said second device interfaces (15) is at least two.

3. External device (1) according to claim 2, characterized in that the at least two second device interfaces (15) are of mutually different kind.

4. An external device (1) according to claim 3, wherein the kind of the second device interface (15) comprises: at least two of a Universal Serial Bus (USB) interface, a lightning (lightning) interface, a Type-C interface, and a circular earphone hole interface.

5. External device (1) according to any of claims 1 to 4, characterized in that said trunk (11) has a drum (16) thereon;

the second apparatus interface (15) is located on an outer surface of the drum (16).

6. The circumscribed appliance (1) of claim 5, wherein the drum (16) further comprises a bearing (161) axially extending through the drum (16);

the bearing (161) is connected with the trunk (11) in a sleeved mode.

7. The peripheral device (1) according to claim 6, wherein the drum bottom surface (162) has at least two openings (163), said stem (11) having therein pins (111) adapted to said openings (163);

the at least two openings (163) are equidistant from the center of the bottom surface (162) of the drum;

a first end of the latch (111) is opposite the drum bottom surface (162) when the drum (16) is in the active state;

when the drum (16) is in the limit state, the first end of the plug pin (111) is inserted into the drum (16) through the opening (163).

8. An external device (1) according to claim 7, characterized in that said stem (11) has a spring (112) inside it;

the second end of the bolt (111) is connected with the spring (112).

9. The peripheral device (1) according to claim 7, wherein the surface of the trunk (11) has a chute (113);

the bolt (111) is provided with a handle (1111), and the handle (1111) protrudes out of the surface of the trunk (11) through the sliding groove (113).

10. An external device (1) according to any of claims 1 to 4, wherein said external device (1) further comprises at least one game shoulder key (17);

the game shoulder key (17) is positioned on the main stem (11);

the game shoulder key (17) is electrically connected with the first equipment interface (14).

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