Electronic device

Abstract

The utility model relates to electronic product technical field provides an electronic equipment, include: first body and second body, first body includes first control panel, first battery, first charge -discharge protection circuit, first handshake circuit and first electric connection mouth, second body includes second control panel, second battery, second handshake circuit and second electric connection mouth, under the situation of first electric connection mouth and second electric connection mouth connection, first electric connection mouth and second electric connection mouth communication connection, and first control panel controls the on -off state of first charge -discharge protection circuit according to the voltage signal of first handshake circuit feedback, and second control panel controls the working condition of second handshake circuit according to the voltage signal of second electric connection mouth feedback. The utility model not only has guaranteed the stability of communication between first body and second body, and is convenient for establishing the charging match between first body and second body, to reliably realize the mutual charging between each other.

Description

Technical Field

[0001] This utility model relates to the field of electronic product technology, and in particular to an electronic device. Background Technology

[0002] With the continuous development of technology, electronic devices with two displays, such as OK learning machines, dual-screen laptops, and dual-screen translators, have been widely used because they enable interaction and collaborative operation between different display subjects.

[0003] However, in practical applications, it has been found that the different display units of existing dual-screen electronic devices can often only be charged independently and cannot share power. The signal transmission between different display units mainly relies on wireless connection, making it difficult to ensure the stability of communication. Utility Model Content

[0004] This invention provides an electronic device that at least solves or improves the problem that different components of existing electronic devices are difficult to balance in terms of communication stability and reliable mutual charging.

[0005] This utility model provides an electronic device, including: The first main body includes a first control board, a first battery, a first charge-discharge protection circuit, a first handshake circuit, and a first electrical connection port. The first control board is electrically connected to the first battery, the first charge-discharge protection circuit, and the first handshake circuit, respectively. The first charge-discharge protection circuit and the first handshake circuit are electrically connected to the first electrical connection port, respectively. The second main body includes a second control board, a second battery, a second handshake circuit, and a second electrical connection port; the second control board is electrically connected to the second battery, the second handshake circuit, and the second electrical connection port, respectively; the second handshake circuit and the second electrical connection port are electrically connected. When the first electrical connection port and the second electrical connection port are connected, the first electrical connection port and the second electrical connection port are communicatively connected, and the first control board is used to control the on / off state of the first charge and discharge protection circuit according to the voltage signal fed back by the first handshake circuit, and the second control board is used to control the working state of the second handshake circuit according to the voltage signal fed back by the second electrical connection port. The voltage signal fed back by the first handshake circuit is determined by the operating state of the second handshake circuit.

[0006] According to the present invention, an electronic device is provided, wherein the first handshake circuit includes a first communication circuit, a first voltage regulator module and a first grounding circuit, the first control board is electrically connected to the first electrical connection port through the first communication circuit, and the first communication circuit can be selectively electrically connected to the first voltage regulator module and the first grounding circuit. The second handshake circuit includes a second communication circuit, a second voltage regulator module, and a second grounding circuit. The second control board is electrically connected to the second electrical connection port through the second communication circuit. The second communication circuit can be selectively electrically connected to the second voltage regulator module and the second grounding circuit. The voltages provided by the first voltage regulator module and the second voltage regulator module are different.

[0007] According to the present invention, an electronic device is provided, wherein the first communication circuit includes a first communication module, a first switch and a second switch, the first communication module is electrically connected to the first electrical connection port, the first communication module is electrically connected to the first voltage regulator module through the first switch, and is electrically connected to the first grounding circuit through the second switch; And / or, the second communication circuit includes a second communication module, a third switch and a fourth switch, the second communication module is electrically connected to the second electrical connection port, the second communication module is electrically connected to the second voltage regulator module through the third switch, and is electrically connected to the second grounding circuit through the fourth switch.

[0008] According to an electronic device provided by this utility model, the first communication circuit is electrically connected to the first voltage regulator module through a first pull-up circuit; And / or, the second communication circuit is electrically connected to the second voltage regulator module via a second pull-up circuit.

[0009] According to the present invention, an electronic device is provided in which the first battery and the first voltage regulator module are electrically connected, the second battery and the second voltage regulator module are electrically connected, and the voltage provided by the first voltage regulator module is greater than the voltage provided by the second voltage regulator module.

[0010] According to the present invention, the first control board includes a first control module and a first charge / discharge management circuit. The first control module is electrically connected to the first charge / discharge management circuit, the first charge / discharge protection circuit, and the first handshake circuit, respectively, and the first battery is electrically connected through the first charge / discharge management circuit and the first charge / discharge protection circuit.

[0011] According to the electronic device provided by this utility model, the first control board further includes a second charge and discharge protection circuit, and the first main body further includes a third electrical connection port, which is used for electrical connection with an external charging device; The third electrical connection port is electrically connected to the second charge-discharge protection circuit and the first charge-discharge management circuit, and the first control module is electrically connected to the second charge-discharge protection circuit. The first control module is used to control the on / off state of the second charge / discharge protection circuit based on the voltage signal fed back by the first handshake circuit.

[0012] According to the present invention, the second control board of the electronic device includes a second control module, a second charge / discharge management circuit, and a third charge / discharge protection circuit. The second control module is electrically connected to the second charge / discharge management circuit and the second handshake circuit, respectively. The second electrical connection port is electrically connected to the third charge / discharge protection circuit and the second charge / discharge management circuit. The second charge / discharge management circuit is electrically connected to the second battery.

[0013] According to the present invention, an electronic device is provided, wherein the first main body includes a first display screen, the first display screen and the first control board are electrically connected, and when the first electrical connection port and the second electrical connection port are connected, the first display screen is used to receive a first input command, and the first control board is used to control the charging state between the first main body and the second main body according to the first input command. And / or, the second body includes a second display screen, the second display screen and the second control board are electrically connected, and when the first electrical connection port and the second electrical connection port are connected, the second display screen is used to receive a second input command, and the second control board is used to control the charging state between the first body and the second body according to the second input command.

[0014] According to the present invention, an electronic device further includes a hinge structure, wherein the first main body is rotatably connected to the second main body through the hinge structure; The first electrical connection port is located on the side of the hinge structure facing the second main body, and the second electrical connection port is located on the side of the second main body facing the hinge structure. The first electrical connection port and the second electrical connection port are plugged into each other. Alternatively, the first electrical connection port is located on the side of the first body facing the hinge structure, and the second electrical connection port is located on the side of the hinge structure facing the first body, with the first electrical connection port and the second electrical connection port being plugged into each other.

[0015] The electronic device provided by this utility model improves the relevant circuit structure of the first and second main bodies, enabling the first and second main bodies to simultaneously communicate and charge through the first and second electrical connection ports. During the combined use of the first and second main bodies, charging matching between the first and second main bodies can be achieved based on the first handshake circuit of the first main body and the second handshake circuit of the second main body at the first and second electrical connection ports. This design not only ensures the stability of communication between the first and second main bodies, but also facilitates the establishment of charging matching between the first and second main bodies, thereby enabling reliable mutual charging between the first and second main bodies. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is one of the structural schematic diagrams of the electronic device provided by this utility model.

[0018] Figure 2 This is the second structural schematic diagram of the electronic device provided by this utility model.

[0019] Figure 3 This is one of the control structure block diagrams of the electronic device provided by this utility model.

[0020] Figure 4 This is the second control structure block diagram of the electronic device provided by this utility model.

[0021] Figure label: 1. First main body; 101. First electrical connection port; 102. Third electrical connection port; 11. First control board; 12. First battery; 13. First charge / discharge protection circuit; 14. First handshake circuit; 15. First display screen; 2. Second main body; 201. Second electrical connection port; 21. Second control board; 22. Second battery; 23. Second handshake circuit; 24. Second display screen; 3. Hinged structure. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] The following is combined Figures 1-4 The electronic device provided by the utility model embodiments will be described in detail through specific implementation examples and application scenarios.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model embodiment provides an electronic device, including: a first body 1 and a second body 2; The first main body 1 includes a first control board 11, a first battery 12, a first charge-discharge protection circuit 13, a first handshake circuit 14, and a first electrical connection port 101. The first control board 11 is electrically connected to the first battery 12, the first charge-discharge protection circuit 13, and the first handshake circuit 14, respectively. The first charge-discharge protection circuit 13 and the first handshake circuit 14 are electrically connected to the first electrical connection port 101, respectively. The second main body 2 includes a second control board 21, a second battery 22, a second handshake circuit 23, and a second electrical connection port 201; the second control board 21 is electrically connected to the second battery 22, the second handshake circuit 23, and the second electrical connection port 201 respectively, and the second handshake circuit 23 is electrically connected to the second electrical connection port 201. When the first electrical connection port 101 and the second electrical connection port 201 are connected, the first electrical connection port 101 and the second electrical connection port 201 are communicatively connected, and the first control board 11 is used to control the on / off state of the first charge and discharge protection circuit 13 according to the voltage signal fed back by the first handshake circuit 14, and the second control board 21 is used to control the working state of the second handshake circuit 23 according to the voltage signal fed back by the second electrical connection port 201. The voltage signal fed back by the first handshake circuit 14 is determined by the operating state of the second handshake circuit 23.

[0025] It is understood that the first main body 1 and the second main body 2 achieve communication and charging connection through the first electrical connection port 101 and the second electrical connection port 201. The first electrical connection port 101 and the second electrical connection port 201 adopt the same type of interface and are both configured with communication signal transmission channels and charging signal transmission channels.

[0026] The first electrical connection port 101 and the second electrical connection port 201 can be either a Type-C interface or a pogo pin interface, without specific limitations. When both the first electrical connection port 101 and the second electrical connection port 201 are Type-C interfaces, they are plugged into each other and communicate based on the USB 2.0 protocol.

[0027] In practical applications, both the first control board 11 and the second control board 21 can be PCB boards, and both the first battery 12 and the second battery 22 can be lithium batteries known in the art. The first charge-discharge protection circuit 13 can be a switching circuit that is normally in an open state. The first charge-discharge protection circuit 13 is closed and opened according to the control signal from the first control board 11. Specifically, the first charge-discharge protection circuit 13 is used to automatically disconnect when the charging voltage or charging current exceeds a safety threshold, so as to protect the rechargeable battery.

[0028] Meanwhile, the first handshake circuit 14 and the second handshake circuit 23 are used to achieve charging matching between the first main body 1 and the second main body 2. Both the first handshake circuit 14 and the second handshake circuit 23 can be circuits that can achieve state switching, such as being able to switch between grounded state and powered state.

[0029] In some examples, the first handshake circuit 14 is normally powered on, and the second handshake circuit 23 is normally grounded. When the first electrical connection port 101 and the second electrical connection port 201 are connected, the first handshake circuit 14 and the second handshake circuit 23 are electrically connected through the first electrical connection port 101 and the second electrical connection port 201, causing the first handshake circuit 14 to be configured to be grounded. At this time, the first handshake circuit 14 will feed back a voltage signal to the first control board 11. The first control board 11 will control the first charge and discharge protection circuit 13 to be turned on according to the voltage signal fed back by the first handshake circuit 14, so that the first battery 12, the first control board 11, the first charge and discharge protection circuit 13 and the first electrical connection port 101 are electrically connected in sequence.

[0030] When the second control board 21 detects a charge / discharge signal from the first electrical connection port 101 through the second electrical connection port 201, the second control board 21 can control the second handshake circuit 23 to switch to the powered state. The switching of the working state of the second handshake circuit 23 causes a change in the voltage signal fed back to the first control board 11 by the first handshake circuit 14. If the voltage signal fed back by the first handshake circuit 14 meets the charging setting requirements, the first control board 11 will not perform relevant control on the first charge / discharge protection circuit 13. At this time, the first main body 1 and the second main body 2 are successfully matched for charging. If the voltage signal fed back by the first handshake circuit 14 does not meet the charging setting requirements, the first control board 11 will control the first charge / discharge protection circuit 13 to disconnect. At this time, the first main body 1 and the second main body 2 fail to match for charging.

[0031] Therefore, the electronic device shown in this utility model improves the relevant circuit structure of the first main body 1 and the second main body 2, enabling the first main body 1 and the second main body 2 to simultaneously communicate and charge through the first electrical connection port 101 and the second electrical connection port 201. During the combined use of the first main body 1 and the second main body 2, charging matching between the first main body 1 and the second main body 2 can be achieved based on the first handshake circuit 14 of the first main body 1 and the second handshake circuit 23 of the second main body 2 at the first electrical connection port 101 and the second electrical connection port 201. This design not only ensures the stability of communication between the first main body 1 and the second main body 2, but also facilitates the establishment of charging matching between the first main body 1 and the second main body 2, thereby enabling reliable mutual charging between the first main body 1 and the second main body 2.

[0032] In some embodiments, such as Figure 3 and Figure 4 As shown, the first handshake circuit 14 includes a first communication circuit, a first voltage regulator module, and a first grounding circuit. The first control board 11 is electrically connected to the first electrical connection port 101 through the first communication circuit. The first communication circuit can be selectively electrically connected to the first voltage regulator module and the first grounding circuit. The second handshake circuit 23 includes a second communication circuit, a second voltage regulator module, and a second grounding circuit. The second control board 21 is electrically connected to the second electrical connection port 201 through the second communication circuit. The second communication circuit can be selectively electrically connected to the second voltage regulator module and the second grounding circuit. The voltages provided by the first voltage regulator module and the second voltage regulator module are different.

[0033] It is understandable that both the first and second communication circuits can use a USB-C controller. The USB-C controller can provide an SBU signal based on an internal multiplexer (MUX) or analog switch. The SBU signal is usually output based on the SBU pin of the USB-C controller.

[0034] Therefore, for the first communication circuit, the SBU pin of the first communication circuit can be electrically connected to the first voltage regulator module and the first grounding circuit respectively; for the second communication circuit, the SBU pin of the second communication circuit is connected to the second voltage regulator module and the second grounding circuit respectively.

[0035] The first and second voltage regulator modules can both be linear voltage regulator circuits or switching voltage regulator circuits to provide low-voltage regulated power supplies (e.g., 3-5V level); the first and second grounding circuits can both be grounding circuits composed of resistors and capacitors or inductors.

[0036] In some embodiments, such as Figure 4 As shown, the first battery 12 is electrically connected to the first voltage regulator module, and the second battery 22 is electrically connected to the second voltage regulator module. The voltage provided by the first voltage regulator module is greater than the voltage provided by the second voltage regulator module. Specifically, the voltage provided by the first voltage regulator module can be 3.3V, and the voltage provided by the second voltage regulator module can be 1.8V.

[0037] In practical applications, the first main body 1 is assumed to have its first communication circuit electrically connected to the first voltage regulator module under normal conditions to achieve connection to the first pull-up voltage; the second main body 2 is assumed to have its second communication circuit electrically connected to the second grounding circuit under normal conditions to achieve grounding; the second voltage regulator module is used to provide the second pull-up voltage. When the first main body 1 and the second main body 2 are used in combination, the first main body 1 and the second main body 2 achieve charging matching based on the first handshake circuit 14 and the second handshake circuit 23, which can be achieved based on the following steps: First, when the first electrical connection port 101 and the second electrical connection port 201 are connected, the voltage of the first communication circuit is configured to switch from the first pull-up voltage to ground, and the first communication circuit will trigger an interrupt to wake up the first control board 11 of the first main body 1. Next, the first control board 11 controls the first charge / discharge protection circuit 13 to be turned on, so that the first battery 12, the first control board 11, the first charge / discharge protection circuit 13 and the first electrical connection port 101 are connected in sequence to charge the second body 2. When the second control board 21 of the second body 2 detects a charge / discharge signal from the first electrical connection port 101 through the second electrical connection port 201, it will start working and control the second communication circuit to disconnect from the second grounding circuit. At this time, the voltage signal detected by the second control board 21 through the second communication circuit is pulled up to the first pull-up voltage by the first body 1 to trigger a charging matching event. Subsequently, the first control board 11 of the first main body 1 controls the electrical connection between the first communication circuit and the first grounding circuit, and the second control board 21 of the second main body 2 controls the electrical connection between the second communication circuit and the second voltage regulator module, pulling up the connection voltage of the second communication circuit to the second pull-up voltage. If the voltage fed back by the first communication circuit is within the set range lower than the second pull-up voltage, the charging matching requirement is met, and the first control board 11 will not perform relevant control on the first charge-discharge protection circuit 13. If the voltage fed back by the first communication circuit is not within the set range lower than the second pull-up voltage, the charging matching requirement is not met, and the first control board 11 will control the first charge-discharge protection circuit 13 to disconnect. At this time, the charging matching of the first main body 1 and the second main body 2 fails.

[0038] Based on the above interactive verification process, the first subject 1 and the second subject 2 can achieve reliable encrypted matching when charging. At this time, the first subject 1 and the second subject 2 can also achieve information exchange with each other through USB D+ and D- signals.

[0039] In some embodiments, such as Figure 3 and Figure 4 As shown, while meeting the communication requirements of the first communication circuit, the first communication circuit can be selectively electrically connected to the first voltage regulator module and the first grounding circuit. The first communication circuit includes a first communication module, a first switch, and a second switch. The first communication module is electrically connected to the first electrical connection port 101. The first communication module is electrically connected to the first voltage regulator module through the first switch and to the first grounding circuit through the second switch. The first communication module can be a host controller chip, such as a USB PD control chip. Both the first and second switches can be transistor-based switching circuits. The first communication module can automatically control the switching state of the first and second switches based on the output signal.

[0040] In some embodiments, such as Figure 3 and Figure 4 As shown, while meeting the communication requirements of the second communication circuit, the second communication circuit can be selectively electrically connected to the second voltage regulator module and the second grounding circuit. The second communication circuit includes a second communication module, a third switch, and a fourth switch. The second communication module is electrically connected to the second electrical connection port 201. The second communication module is electrically connected to the second voltage regulator module through the third switch, and electrically connected to the second grounding circuit through the fourth switch. The second communication module can be a host controller chip, such as a USB PD control chip. The third and fourth switches can both be transistor-based switching circuits. The second communication module can automatically control the switching states of the third and fourth switches based on the output signal.

[0041] In some embodiments, the first communication circuit is electrically connected to the first voltage regulator module via a first pull-up circuit; and / or, the second communication circuit is electrically connected to the second voltage regulator module via a second pull-up circuit.

[0042] Both the first pull-up circuit and the second pull-up circuit can be resistor circuits composed of multiple resistors connected in series and / or in parallel.

[0043] In some embodiments, such as Figure 3 and Figure 4 As shown, the first control board 11 includes a first control module and a first charge / discharge management circuit; The first control module is electrically connected to the first charge / discharge management circuit, the first charge / discharge protection circuit 13, and the first handshake circuit 14, respectively. The first battery 12 is electrically connected through the first charge / discharge management circuit and the first charge / discharge protection circuit 13.

[0044] It is understood that the first control module is a slave processing chip integrated on the first control board 11, such as a central processing unit (CPU). The first charge and discharge management circuit can adopt a charge and discharge management circuit known in the art and used in mobile phones or laptops. This type of charge and discharge management circuit takes into account multiple requirements such as high-efficiency energy conversion, system power supply stability, battery life protection and peak power compensation. It is mainly used to realize power path management for system power supply and charging control, as well as battery system management for realizing the acquisition of physical information such as battery voltage, current and temperature, power estimation and overcharge / over-discharge / overcurrent / short circuit protection.

[0045] In some embodiments, such as Figure 3 and Figure 4 As shown, the first control board 11 also includes a second charge and discharge protection circuit, and the first main body 1 also includes a third electrical connection port 102, which is used to electrically connect with an external charging device; wherein, the external charging device can be a charger. The third electrical connection port 102 is electrically connected to the second charge-discharge protection circuit and the first charge-discharge management circuit, and the first control module is electrically connected to the second charge-discharge protection circuit. The first control module is used to control the on / off state of the second charge / discharge protection circuit based on the voltage signal fed back by the first handshake circuit 14.

[0046] It is understandable that the third electrical connection port 102 can adopt a Type-C interface, and independent charging of the first main body 1 can be achieved based on the third electrical connection port 102. The second charge and discharge protection circuit can adopt the same or similar circuit structure as the first charge and discharge protection circuit 13, which will not be described in detail.

[0047] In practical applications, when the first electrical connection port 101 and the second electrical connection port 201 are connected and the first main body 1 and the second main body 2 are charged and matched, the first control module will control the second charge and discharge protection circuit to disconnect according to the voltage signal fed back by the first handshake circuit 14, so that the external charging device cannot charge the first main body 1 through the third electrical connection port 102. Conversely, when the first main body 1 and the second main body 2 are not charged and matched, the second charge and discharge protection circuit remains in a normally closed state, and the first control module will not control the switching state of the second charge and discharge protection circuit. At this time, the external charging device can charge the first main body 1 through the third electrical connection port 102.

[0048] In some embodiments, such as Figure 3 and Figure 4 As shown, the first control board 11 is also equipped with a charging and discharging protocol circuit known in the art. The first control module is electrically connected to the third electrical connection port 102 through the charging and discharging protocol circuit. The charging and discharging protocol circuit is used to supply power to the third electrical connection port 102, manage the charging status of the third electrical connection port 102, and perform charging safety protection to prevent overvoltage, overcurrent, overtemperature and other situations from occurring during the charging process.

[0049] In some embodiments, such as Figure 3 and Figure 4 As shown, the second control board 21 includes a second control module, a second charge / discharge management circuit, and a third charge / discharge protection circuit; The second control module is electrically connected to the second charge / discharge management circuit and the second handshake circuit 23, respectively. The second electrical connection port 201 is electrically connected to the third charge / discharge protection circuit and the second charge / discharge management circuit. The second charge / discharge management circuit is electrically connected to the second battery 22.

[0050] It is understood that the second control module can be a slave processing chip integrated on the second control board 21, such as a central processing unit (CPU), the second charge and discharge management circuit can adopt a circuit structure similar to the first charge and discharge management circuit described above, and the third charge and discharge protection circuit can adopt a circuit structure similar to the first charge and discharge protection circuit 13 described above.

[0051] The third charge-discharge protection circuit is normally closed (conducting), and can electrically connect the second control module and the third charge-discharge protection circuit. The second control module controls the on / off state of the third charge-discharge protection circuit.

[0052] In some embodiments, such as Figure 2 and Figure 4As shown, the first main body 1 includes a first display screen 15, and the first display screen 15 and the first control board 11 are electrically connected. For example, the first display screen 15 is electrically connected to the first control module on the first control board 11. When the first electrical connection port 101 and the second electrical connection port 201 are connected, the first display screen 15 is used to receive a first input command, and the first control board 11 is used to control the charging state between the first main body 1 and the second main body 2 according to the first input command. And / or, the second body 2 includes a second display screen 24, which is electrically connected to the second control board 21. For example, the second display screen 24 is electrically connected to a second control module on the second control board 21. When the first electrical connection port 101 and the second electrical connection port 201 are connected, the second display screen 24 is used to receive a second input command, and the second control board 21 is used to control the charging state between the first body 1 and the second body 2 according to the second input command.

[0053] It is understandable that both the first display screen 15 and the second display screen 24 can be liquid crystal displays (LCDs) capable of receiving touch commands from the user.

[0054] When the first body 1 and the second body 2 establish a charging match, the user can input control commands through the first display screen 15 or the second display screen 24 according to actual needs, so as to control the first body 1 to charge the second body 2 in a directional manner, or control the second body 2 to charge the first body 1 in a directional manner.

[0055] Of course, in practical applications, when the first main body 1 and the second main body 2 establish a charging match, based on the power level of the first main body 1 and the power level of the second main body 2, and based on the control program preset by the first main body 1 or the second main body 2, it is also possible to automatically charge the unit with the higher power level to the unit with the lower power level.

[0056] Meanwhile, the electronic device in this embodiment supports priority settings. The power priority mode of the first main body 1 can be set through the first display screen 15 of the first main body 1 so that when the first main body 1 and the second main body 2 charge each other based on the OTG function, the power of the first main body 1 is given priority.

[0057] Furthermore, when the first main body 1 and the second main body 2 establish a charging match, it can also be set to automatically achieve reverse charging between the first main body 1 and the second main body 2 when the battery level of the first main body 1 is <20% and the battery level of the second main body 2 is >50%. After completing the mutual power supply, the user can input control commands through the first display screen 15 or the second display screen 24 to control the shutdown of the mutual power supply mode between the first main body 1 and the second main body 2.

[0058] In some embodiments, such as Figure 1 and Figure 2 As shown, the electronic device also includes a hinge structure 3, through which the first body 1 is rotatably connected to the second body 2. The first electrical connection port 101 is located on the side of the hinge structure 3 facing the second main body 2, and the second electrical connection port 201 is located on the side of the second main body 2 facing the hinge structure 3. The first electrical connection port 101 and the second electrical connection port 201 are connected together. Alternatively, the first electrical connection port 101 is located on the side of the first main body 1 facing the hinge structure 3, and the second electrical connection port 201 is located on the side of the hinge structure 3 facing the first main body 1, with the first electrical connection port 101 and the second electrical connection port 201 being plugged into each other.

[0059] It is understood that the first main body 1 includes a first housing and a first control board 11, a first battery 12, a first charge and discharge protection circuit 13, a first handshake circuit 14 and a first electrical connection port 101 disposed in the first housing.

[0060] The second main body 2 includes a second housing and a second control board 21, a second battery 22, a second handshake circuit 23 and a second electrical connection port 201 disposed on the second housing; wherein, the first housing and the second housing are rotatably connected by a hinge structure 3, which can be a single-axis hinge mechanism or a double-axis hinge mechanism, and there is no specific limitation on this.

[0061] The rotation angle of the second body 2 relative to the first body 1 can be set from 0° to 180° to meet the application requirements of electronic devices in different scenarios.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electronic device, characterized in that, include: The first main body includes a first control board, a first battery, a first charge-discharge protection circuit, a first handshake circuit, and a first electrical connection port. The first control board is electrically connected to the first battery, the first charge-discharge protection circuit, and the first handshake circuit, respectively. The first charge-discharge protection circuit and the first handshake circuit are electrically connected to the first electrical connection port, respectively. The second main body includes a second control board, a second battery, a second handshake circuit, and a second electrical connection port; The second control board is electrically connected to the second battery, the second handshake circuit, and the second electrical connection port, respectively; the second handshake circuit and the second electrical connection port are electrically connected. When the first electrical connection port and the second electrical connection port are connected, the first electrical connection port and the second electrical connection port are communicatively connected, and the first control board is used to control the on / off state of the first charge and discharge protection circuit according to the voltage signal fed back by the first handshake circuit, and the second control board is used to control the working state of the second handshake circuit according to the voltage signal fed back by the second electrical connection port. The voltage signal fed back by the first handshake circuit is determined by the operating state of the second handshake circuit.

2. The electronic device according to claim 1, characterized in that, The first handshake circuit includes a first communication circuit, a first voltage regulator module, and a first grounding circuit. The first control board is electrically connected to the first electrical connection port through the first communication circuit. The first communication circuit can be selectively electrically connected to the first voltage regulator module and the first grounding circuit. The second handshake circuit includes a second communication circuit, a second voltage regulator module, and a second grounding circuit. The second control board is electrically connected to the second electrical connection port through the second communication circuit. The second communication circuit can be selectively electrically connected to the second voltage regulator module and the second grounding circuit. The voltages provided by the first voltage regulator module and the second voltage regulator module are different.

3. The electronic device according to claim 2, characterized in that, The first communication circuit includes a first communication module, a first switch, and a second switch. The first communication module is electrically connected to the first electrical connection port, electrically connected to the first voltage regulator module through the first switch, and electrically connected to the first grounding circuit through the second switch. And / or, the second communication circuit includes a second communication module, a third switch and a fourth switch, the second communication module is electrically connected to the second electrical connection port, the second communication module is electrically connected to the second voltage regulator module through the third switch, and is electrically connected to the second grounding circuit through the fourth switch.

4. The electronic device according to claim 2, characterized in that, The first communication circuit is electrically connected to the first voltage regulator module through a first pull-up circuit; And / or, the second communication circuit is electrically connected to the second voltage regulator module via a second pull-up circuit.

5. The electronic device according to claim 2, characterized in that, The first battery is electrically connected to the first voltage regulator module, and the second battery is electrically connected to the second voltage regulator module. The voltage provided by the first voltage regulator module is greater than the voltage provided by the second voltage regulator module.

6. The electronic device according to any one of claims 1 to 5, characterized in that, The first control board includes a first control module and a first charge / discharge management circuit; The first control module is electrically connected to the first charge / discharge management circuit, the first charge / discharge protection circuit, and the first handshake circuit, respectively, and the first battery is electrically connected through the first charge / discharge management circuit and the first charge / discharge protection circuit.

7. The electronic device according to claim 6, characterized in that, The first control board also includes a second charge and discharge protection circuit, and the first main body also includes a third electrical connection port, which is used for electrical connection with an external charging device; The third electrical connection port is electrically connected to the second charge-discharge protection circuit and the first charge-discharge management circuit, and the first control module is electrically connected to the second charge-discharge protection circuit. The first control module is used to control the on / off state of the second charge / discharge protection circuit based on the voltage signal fed back by the first handshake circuit.

8. The electronic device according to any one of claims 1 to 5, characterized in that, The second control board includes a second control module, a second charge / discharge management circuit, and a third charge / discharge protection circuit; The second control module is electrically connected to the second charge / discharge management circuit and the second handshake circuit, respectively. The second electrical connection port is electrically connected to the third charge / discharge protection circuit and the second charge / discharge management circuit. The second charge / discharge management circuit is electrically connected to the second battery.

9. The electronic device according to any one of claims 1 to 5, characterized in that, The first main body includes a first display screen, which is electrically connected to the first control board. When the first electrical connection port and the second electrical connection port are connected, the first display screen is used to receive a first input command, and the first control board is used to control the charging state between the first main body and the second main body according to the first input command. And / or, the second body includes a second display screen, the second display screen and the second control board are electrically connected, and when the first electrical connection port and the second electrical connection port are connected, the second display screen is used to receive a second input command, and the second control board is used to control the charging state between the first body and the second body according to the second input command.

10. The electronic device according to any one of claims 1 to 5, characterized in that, The electronic device further includes a hinge structure, through which the first main body and the second main body are rotatably connected; The first electrical connection port is located on the side of the hinge structure facing the second main body, and the second electrical connection port is located on the side of the second main body facing the hinge structure. The first electrical connection port and the second electrical connection port are plugged into each other. Alternatively, the first electrical connection port is located on the side of the first body facing the hinge structure, and the second electrical connection port is located on the side of the hinge structure facing the first body, with the first electrical connection port and the second electrical connection port being plugged into each other.

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