WO2020168940A1

WO2020168940A1 - Electronic device and discharge control method

Info

Publication number: WO2020168940A1
Application number: PCT/CN2020/074700
Authority: WO
Inventors: 杨鑫
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-02-22
Filing date: 2020-02-11
Publication date: 2020-08-27
Also published as: CN111614131B; CN111614131A

Abstract

An electronic device, comprising a battery unit (110), an external interface (120), a first charging circuit (130), a first discharging circuit (140), and a second discharging circuit (150). The battery unit (110) comprises a core (111) as well as a first connection end (113) and second connection end (115) respectively connected to the core (111); the external interface (120) is used for externally connecting an adapter or a device to be charged; the first charging circuit (130) is connected to the first connection end (113) and the external interface (120) respectively, is disposed close to the external interface (120), and is used to charge the battery unit (110) when externally connected to the adapter; the first discharging circuit (140) is connected to the first connection end (113) and the external interface (120) respectively, is disposed close to the external interface (120), and is used when externally connected the device to be charged to supply power to the device to be charged on the basis of the battery unit (110); the second discharging circuit (150) is connected to the second connection end (115), is disposed away from the external interface (120), and supplies power to an electronic device on the basis of the battery unit (110). The described electronic device may reduce circuit heat loss in a charge and discharge circuit, thereby improving the charging and discharging efficiency.

Description

Electronic equipment and discharge control method

Cross references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on February 22, 2019, with application number 2019101317596 and invention title "Electronic Equipment and Discharge Control Method", the entire content of which is incorporated in this application by reference.

Technical field

This application relates to the field of computer technology, in particular to an electronic device and a discharge control method.

Background technique

The statements here only provide background information related to the application, and do not necessarily constitute existing exemplary technologies.

Electronic equipment is playing an increasingly important role in people's lives, and the development of electronic equipment charging and discharging technology is getting faster and faster. The capacity of battery cells equipped with electronic equipment is also increasing to meet the demand for longer standby time.

Generally, when charging the battery unit or powering an electronic device through the battery unit, the charging circuit and the discharging circuit can be arranged on the same side of the battery unit, and the tabs and the charging circuit and the charging circuit can be arranged on the same side of the battery unit. The discharge circuit is connected to complete charging and discharging tasks on the same side of the battery unit. However, this method will increase the current path during charging and discharging, resulting in excessive heat loss during charging and discharging, and limiting the charging and discharging speed.

Summary of the invention

According to various embodiments of the present application, an electronic device and a charge and discharge control method are provided.

An electronic device including:

The battery unit includes a battery cell and a first connection terminal and a second connection terminal respectively connected to the battery cell;

External interface for external adapter or device to be charged;

The first charging circuit is respectively connected to the first connection terminal and the external interface, and is arranged close to the external interface, and is used to charge the battery unit when the adapter is externally connected;

The first discharging circuit is respectively connected to the first connection terminal and the external interface, and is arranged close to the external interface, and is configured to supply power to the device to be charged based on the battery unit when the device to be charged is externally connected;

The second discharging circuit is connected to the second connection terminal and is located away from the external interface, and supplies power to the electronic device based on the battery unit.

A discharge control method, applied to an electronic device including the external interface, includes:

Detecting the device type of the external charging device connected to the external interface;

According to the device type, the connection between the battery unit and the first charging circuit, the first discharging circuit, or the second discharging circuit is controlled to be turned on, so that the battery unit is in a charging state or a reverse charging state.

In the above electronic device and discharge control method, the battery unit includes a first connection end and a second connection end connected to the battery cell, wherein the first connection end is connected to the first charging circuit and the first discharging circuit, and the second connection end is connected to the first The two discharging circuits are connected to realize the separation of the first charging circuit and the first discharging circuit. In the process of charging the battery unit, the current path of the first charging circuit can be shortened, thereby reducing the line heat loss in the charging path; When the unit is processing the discharge state, according to the power supply object of the battery unit, the first discharge circuit or the second discharge circuit can be selected to shorten the current path of the discharge circuit, thereby reducing the heat loss of the circuit in the discharge path, thereby improving the charging and discharging performance effectiveness.

The details of one or more embodiments of the application are set forth in the following drawings and description. Other features, purposes and advantages of this application will become apparent from the description, drawings and claims.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Fig. 1 is a schematic diagram of the structure of an electronic device in an embodiment.

Fig. 2a is a schematic diagram of the structure of a battery cell in an embodiment.

Fig. 2b is a schematic diagram of the structure of a battery cell in another embodiment.

Fig. 3 is a schematic diagram of the structure of an electronic device in another embodiment.

Fig. 4 is a schematic structural diagram of an electronic device in another embodiment.

Fig. 5 is a schematic structural diagram of an electronic device in another embodiment.

Fig. 6 is a flowchart of a charging and discharging control method in an embodiment.

FIG. 7 is a block diagram of a part of the structure of a mobile phone related to an electronic device provided by an embodiment of the present application.

detailed description

In order to make the purpose, technical solutions, and advantages of the application more clear, the application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and are not used to limit the application.

It can be understood that the terms "first", "second", etc. used in this application can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element. For example, without departing from the scope of the present application, the first group of tabs can be referred to as the second group of tabs, and similarly, the second group of tabs can be referred to as the first group of tabs. Both the first set of tabs and the second set of tabs are set of tabs, but they are not the same set of tabs.

As shown in FIG. 1, in some embodiments, the present application provides an electronic device. The electronic device includes a battery unit 110, an external interface 120, a first charging circuit 130, a first discharging circuit 140, and a second discharging circuit 150.

In some embodiments, the battery unit 110 includes a battery cell 111 and a first connection terminal 113 and a second connection terminal 115 respectively connected to the battery cell 111. For example, the first connection terminal 113 and the second connection terminal 115 are respectively located on different sides of the cell 111. The first connecting end 113 may be located on the first side surface of the battery cell 111 of the battery unit 110, and the second connecting end 115 may be located on the second side surface of the battery cell 111, wherein the first side surface and the second side surface are disposed opposite to each other. Specifically, the first connection terminal 113 can be located close to the external interface 120, and the second connection terminal 115 can be located away from the external interface 120, for example, the second connection terminal 115 can be located close to the motherboard 20 in the electronic device. Optionally, the first connection end 113 and the second connection end 115 may also be located on the same side surface of the battery core 111.

In some embodiments, the external interface 120 is used for external adapters or devices to be charged. The external interface 120 can be connected to the adapter or the device to be charged through a data cable, and transmit the charging voltage output by the adapter or the device to be charged to the first charging circuit 130, and the first charging circuit 130 can provide the battery unit 110 in the electronic device based on the charging voltage. Recharge. For example, the external interface 120 may be any one of a Micro usb interface, a Type-C interface, a 30-pin interface, and a lightning interface.

It should be noted that the embodiment of the present application does not specifically limit the type of the adapter or the device to be charged. For example, the adapter can be a normal adapter or a fast charging adapter; the device to be charged can be a mobile power bank, a power bank and other wired devices that are specially used for charging, or a computer and other wired mobile devices that can provide power and data services. equipment.

In some embodiments, the first charging circuit 130 is connected to the first connection terminal 113 and the external interface 120 respectively; the first discharging circuit 140 is connected to the first connection terminal 113 and the external interface 120 respectively; the second discharging circuit 150 is connected to the second The connection terminal 115 is connected. That is, the first connection terminal 113 can be used to connect the first charging circuit 130 and the first discharging circuit 140. The second connection terminal 115 can be used to connect to the second discharge circuit 150.

In some embodiments, the first charging circuit 130 and the first discharging circuit 140 are both disposed close to the external interface 120; the second discharging circuit 150 is disposed close to the main board 20 of the electronic device. It should be noted that the external interface 120 is arranged on the first side of the battery unit 110, and the main board 20 is arranged on the second side of the battery unit 110, wherein the first side and the second side are arranged opposite to each other.

The first charging circuit 130 can be understood as a circuit provided in an electronic device. When the external interface 120 is connected to an adapter, the first charging circuit 130 can receive a charging current or a charging voltage output by the adapter, and then charge the battery unit 110.

The first discharge circuit 140 and the second discharge circuit 150 can be understood as circuits provided in an electronic device. When the external interface 120 is connected to the device to be charged, the first discharging circuit 140 can receive the charging current or the charging voltage output by the battery unit 110, and then supply power to the external charging device. The second discharging circuit 150 can receive the charging current or the charging voltage output by the battery unit 110, and then the module to be powered provided on the main board 20 in the electronic device provides power.

In the embodiment of the present application, the battery unit 110 includes a first connection terminal 113 and a second connection terminal 115 connected to the battery cell 111, wherein the first connection terminal 113 is connected to the first charging circuit 130 and the first discharging circuit 140, The second connection terminal 115 is connected to the second discharging circuit 150 to realize the separation of the first charging circuit 130 and the first discharging circuit 140. During the charging of the battery unit 110, the current path of the first charging circuit 130 can be shortened. Thereby reducing the heat loss of the circuit in the charging path; when the battery cell 110 is in the discharged state, the first discharging circuit 140 or the second discharging circuit 150 can be selectively turned on according to the power supply object of the battery cell 110 to shorten the current path of the discharging circuit. Thereby reducing the line heat loss in the discharge path, thereby improving the efficiency of charging and discharging.

As shown in FIG. 2a, in some embodiments, the battery cell 111 includes a battery cell 111a, and a first set of tabs 111b and a second set of tabs 111c extending from the battery cell 111a. Wherein, the first set of tabs 111b includes positive and negative tabs respectively connected to the first connecting end 113; the second set of tabs 111c includes the positive and negative tabs respectively connected to the second connecting end 115.

In some embodiments, the battery cell 111 may further include a first set of tabs 111b extending from the first side of the cell unit 111a and a second set of tabs 111c extending from the second side of the cell unit 111a, such as Shown in Figure 2a. Wherein, the first group of tabs 111b and the second group of tabs 111c both include positive ears and negative ears.

Optionally, the battery cell 111 may include a first set of tabs 111b and a second set of tabs 111c extending from the same side surface of the cell unit 111a, as shown in FIG. 2b. Wherein, the first group of tabs 111b and the second group of tabs 111c both include positive ears and negative ears.

It should be noted that the first set of tabs 111b and the second set of tabs 111c can also be arranged on different sides of the cell unit 111a, for example, two adjacently arranged sides. In the embodiment of the present application, the specific positions where the first set of tabs 111b and the second set of tabs 111c extend out of the battery cell 111a are not further limited.

In some embodiments, the battery cell 111a may include a wound positive electrode sheet, a negative electrode sheet, and a separator disposed between the positive electrode sheet and the negative electrode sheet. Among them, the positive electrode tab extending out of the cell unit 111a serves as a positive lug, and the negative electrode tab extending out of the cell unit 111a serves as a negative lug. In the manufacturing process of the cell 111 unit, the positive electrode sheet, the separator and the negative electrode sheet are layered in sequence, and then the structure is wound. After winding, it extends out of the same side or different sides of the cell 111 unit to form the first set of poles. Ear 111b and the second group of tabs.

In some embodiments, the positive lug is a copper sheet plated with a nickel layer, and the negative lug is an aluminum sheet. Among them, the nickel layer can be used as a protective layer of the copper sheet to prevent the oxidation of the copper sheet from increasing the internal resistance and deteriorating the conductivity. The electrical conductivity of the aluminum sheet is high. When a large current passes, the temperature rise of the tab is relatively low, and the hardness of the aluminum sheet is small, and it is not easy to pierce the diaphragm or the adjacent cell 111, which improves the safety performance of the battery unit 110.

As shown in FIG. 3, in one embodiment, the electronic device further includes a first controller 160. The first controller 160 is respectively connected to the external interface 120, the first discharge circuit 140, and the second discharge circuit 150. The first controller 160 is used for controlling the first discharging circuit 140 to be turned on and the second discharging circuit 150 to be turned off when the external interface 120 receives a charging device.

The first controller 160 is also used to identify the type of equipment connected to the external interface 120. Among them, the device type may include charging type and discharging type. Among them, the charging type can be understood as an adapter that is only used to charge the battery and does not have the function of storing electric energy. Discharge can be understood as an electronic device capable of storing electrical energy that can not only charge the battery, but also have the function of receiving the reverse charging of the battery, such as mobile terminals such as power banks, mobile power supplies, bracelets, and mobile phones.

When the device type of the external charging device is a discharge type, it can be determined that the device connected to the external interface 120 is a device to be charged. When the external interface 120 receives a charging device, the first controller 160 can control the first discharging circuit 140 to turn on and the second discharging circuit 150 to turn off, so as to charge the device to be charged based on the battery cell 110 and the first discharging circuit 140, Or, controlling the second discharging circuit 150 to be turned on and the first discharging circuit 140 to be turned off to supply power to the electronic device based on the battery cell 110 and the second discharging circuit 150.

In some embodiments, the first controller 160 is also used to detect and obtain the first power information of the battery unit 110 in the electronic device and the second power information of the device to be charged. Wherein, both the first power information and the second power information can be understood as the remaining power.

When the first power information is greater than the first threshold and the second power information is less than the second threshold, the first controller 160 can control the first discharging circuit 140 to be turned on and the second discharging circuit 150 to be turned off, so that the battery cells 110 and The second discharge circuit 150 supplies power to the device to be charged, that is, makes the battery unit 110 in a reverse charging state, which can also be referred to as a discharging state. When the first power information is less than or equal to the first threshold, and the second power information is greater than or equal to the second threshold, the first controller 160 may control the second discharge circuit 150 to be turned on and the first discharge circuit 140 to be turned off, so that The device to be charged charges the battery unit 110, and at the same time, it can also supply power to the electronic device based on the battery unit 110 and the second discharge circuit 150.

It should be noted that the first power information and the second power information can also be replaced by voltage signals or current signals.

As shown in FIG. 4, in an embodiment, the electronic device further includes a second charging circuit 170. Wherein, the second charging circuit 170 is connected to the second connection terminal 115 and the external interface 120 respectively. Specifically, the second charging circuit 170 is disposed adjacent to the main board 20, that is, the second charging circuit 170 and the second discharging circuit 150 are both disposed close to the main board 20. When an adapter is connected to the external interface 120, the battery unit 110 can be charged based on the second charging circuit 170.

In some embodiments, the first controller 160 is also connected to the first charging circuit 130 and the second charging circuit 170 respectively. When the external interface 120 of the electronic device is connected to the external charging device, the first controller 160 can identify the charging mode of the external charging device. Among them, the charging mode includes normal mode and fast mode.

It should be noted that the charging speed of the fast charging mode is greater than that of the normal mode. For example, the charging current in the fast charging mode is greater than the charging current in the normal mode. For example, the fast charging mode can be understood as a high current charging mode, that is, the corresponding charging current can be higher than 2.5A, up to 5-10A, and the fast charging mode is a direct charging mode, which can directly change the output voltage of the external charging device Load directly on both ends of the battery cell 110. The fast charging mode can also be a high-voltage fast charging mode, that is, the charging voltage of the fast charging mode is higher than the charging voltage of the normal mode, that is, the charging voltage of 9V, 15V, 20V, etc. is generally available, which is higher than that of the normal mode Charging voltage (5V). When the high-voltage fast charge mode is used to power electronic devices, a step-down circuit for step-down processing needs to be added to the electronic device. This step-down circuit can step down the charging voltage in the fast charge mode After processing, use a charging voltage suitable for powering electronic devices. The normal mode can be understood as a charging mode with a rated output voltage of 5V and a rated output current less than or equal to 2.5A.

In some embodiments, the USB signal in the external charging device is a differential signal, and its signal lines are D+ and D-, and D+ or D- of the external charging device is provided with a fixed pull-up resistor. The USB1.0/1.1/2.0 protocol defines high- and low-speed devices to meet the needs of different situations. For example, D+ of high-speed devices is connected to a 1.5kohm pull-up resistor, and D- is not connected; low-speed devices are the opposite. When the external interface 120 is connected to an external rechargeable device, it can quickly identify the resistance value of the fixed resistor on D+ or D- of the external charging device, and then determine whether the external charging device is a fast charging adapter. When the external charging device is a fast charging adapter, the corresponding charging mode is a fast charging mode; if the external charging device is a normal adapter, the corresponding charging mode is a normal mode.

Optionally, when the interface module is connected to an external rechargeable device, it can perform two-way communication with the external adapter connected to the external interface 120, by receiving an inquiry instruction sent by the external charging device, the inquiry instruction is used to inquire about the charging control Whether the device starts the fast charge mode or not, according to the query instruction, sends a confirmation instruction to the external charging device. The confirmation instruction is used to instruct the charging control device to agree to start the fast charge mode, so that the charging mode of the external charging device can be identified.

When the charging mode is the fast charging mode, the first controller 160 can control the charging channel between the battery unit 110 and the first charging circuit 130 to enable the external charging device to charge the battery unit 110 through the first charging circuit 130; When the mode is the normal mode, the first controller 160 may control the charging channels of the battery unit 110 and the second charging circuit 170 to be turned on, so that the external charging device can charge the battery unit 110 through the second charging circuit 170.

As shown in FIG. 5, in one embodiment, the electronic device further includes a first connection module 180 and a second connection module 190. Wherein, the first connection module 180 is respectively connected to the first charging circuit 130 and the first discharging circuit 140, and is used to selectively turn on or disconnect the connection between the battery unit 110 and the first connection terminal 113. The second connection module 190 is connected to the second charging circuit 170 and the second discharging circuit 150 respectively, and is used to selectively turn on or disconnect the connection between the battery unit 110 and the second connection terminal 115.

In some embodiments, the first connection template includes a second controller, and the second connection module 190 includes a third controller. Among them, the second controller is respectively connected with the first charging circuit 130, the first discharging circuit 140, the first connection terminal 113, and the third controller, and is used to identify the charging and discharging state of the battery unit 110, and to select the guide according to the charging and discharging state. Connecting or disconnecting the first connection terminal 113 and the battery unit 110 is also used to output a corresponding control command to the third controller according to the charging and discharging state, so that the third controller can choose to conduct or disconnect the second connection terminal 115 and the connection of the battery unit 110. The third controller is respectively connected to the second discharging circuit 150, the second connection terminal 115, and the second controller, and is used to identify the charging and discharging state of the battery unit 110, and select to turn on or disconnect the second connection terminal according to the charging and discharging state The connection between 115 and the battery unit 110 is also used to output corresponding control commands to the second controller according to the charging and discharging state, so that the second controller can choose to conduct or disconnect the second connection terminal 115 and the battery unit 110.

For example, when the first charging circuit 130 is externally connected to the adapter to charge the battery unit 110, the second controller in the first connection module 180 can recognize that the current charging and discharging state of the battery unit 110 is the charging state, and select to turn on the first connection The terminal 113 is connected to the battery unit 110, and a corresponding control command is output to the third controller at the same time, so that the third controller disconnects the second connection terminal 115 from the battery unit 110, and then charges the battery unit 110 through the adapter . When the battery unit 110 supplies power to the module to be powered in the electronic device through the second discharging circuit 150, the third controller in the second connection module 190 can recognize that the current charging and discharging state of the battery unit 110 is the discharging state, and select to conduct The second connection terminal 115 is connected to the battery unit 110, and the corresponding control command is output to the second controller at the same time, so that the second controller disconnects the first connection terminal 113 from the battery unit 110, and then passes through the battery unit 110 Supply power to the module to be powered in the electronic device.

For example, when the second charging circuit 170 is connected to an external adapter to charge the battery unit 110, the third controller in the second connection module 190 can recognize that the current charging and discharging state of the battery unit 110 is the charging state, and select to turn on the second connection The terminal 115 is connected with the battery unit 110, and the corresponding control command is output to the second controller at the same time, so that the second controller disconnects the first connection terminal 113 from the battery unit 110, and then charges the battery unit 110 through the adapter .

When the battery unit 110 supplies power to the module to be powered in the electronic device through the first discharging circuit 140, the second controller in the first connection module 180 can recognize that the current charging and discharging state of the battery unit 110 is the discharging state, and select the conduction The first connection terminal 113 is connected to the battery unit 110, and the corresponding control command is output to the third controller at the same time, so that the third controller disconnects the second connection terminal 115 from the battery unit 110, and then passes through the battery unit 110. Supply power to the module to be powered in the electronic device.

In this embodiment, the second controller provided in the first connection module 180 and the third controller provided in the second connection module 190 can both identify the charging and discharging state of the battery unit 110, and then cooperate and control each other. That is, when the first connection terminal 113 is electrically connected to the first charging circuit 130 or the first discharging circuit 140, the second connection terminal 115 can be disconnected from the battery cell 110 through the third controller, or when the first When the second connection terminal 115 is electrically connected to the second charging circuit 170 or the second discharging circuit 150, the connection between the first connection terminal 113 and the battery unit 110 can be disconnected by the second controller. In this implementation, the two different sides of the battery unit 110 can perform charging and discharging operations, which greatly shortens the current path of the charging and discharging processes, reduces the power consumption and heat generated by the current passing through the path, and can realize high-power charging and discharging. , Further accelerate the charging speed, can greatly improve the charge and discharge power. At the same time, the configuration of the charging and discharging ports (the first connection end 113 and the second connection end 115) of the battery unit 110 is no longer restricted, and the flexibility of the application of the battery unit 110 is improved.

In some embodiments, the first connection module 180 is also provided with a first protection circuit connected to the first charging circuit 130 and the first discharging circuit 140 respectively. The first protection circuit is used to protect the first charging circuit 130 and the first discharging circuit 140. Correspondingly, the second connection module 190 is also provided with a second protection circuit respectively connected to the second charging circuit 170 and the second discharging circuit 150. The second protection circuit is used to protect the second charging circuit 170 and the second discharging circuit 150.

It should be noted that the structure and function of the first protection circuit and the second protection circuit are different.

In this embodiment, two independent sets of the first protection circuit and the second protection circuit are used. The first protection circuit protects the first charging circuit 130 and the first discharging circuit 140, respectively, and the second protection circuit includes a second discharging circuit 150 and a second discharging circuit. The second charging circuit 170 can provide targeted professional protection to make the protection effect better, help prolong the life of the battery unit 110, improve the safety of the battery unit 110, and thereby improve the safety of each discharge circuit and each charging circuit .

Fig. 6 is a flowchart of a discharge control method in an embodiment. In one embodiment, the discharge control method, applied to electronic equipment, includes steps 602 to 604, wherein:

Step 602: Detect the device type of the external charging device connected to the external interface.

When the external charging device is connected to the external interface, the electronic device can detect the device type of the external charging device. The external interface can be any of Micro usb interface, Type-C interface, 30-pin interface and lightning interface.

Among them, the external charging device may include an adapter or a device to be charged. It should be noted that the embodiment of the present application does not specifically limit the type of the adapter or the device to be charged. For example, the adapter can be a normal adapter or a fast charging adapter; the device to be charged can be a mobile power bank, a power bank and other wired devices dedicated to charging, or a computer and other wired mobile that can provide power and data services equipment.

Device types include charging and discharging. Among them, the charging type can be understood as an adapter that is only used to charge the battery, and it does not have the function of storing electric energy. Discharge can be understood as an electronic device capable of storing electrical energy that can not only charge the battery, but also have the function of receiving the reverse charging of the battery, such as mobile terminals such as power banks, mobile power supplies, bracelets, and mobile phones.

Step 604: Control the connection of the battery unit to the first charging circuit, the first discharging circuit, or the second discharging circuit according to the device type, so that the battery unit is in a charging state or a reverse charging state.

In some embodiments, the battery unit is a power supply and energy storage unit provided in an electronic device. Wherein, the battery unit includes a battery cell and a first connection terminal and a second connection terminal respectively connected to the battery cell. For example, the first connection terminal and the second connection terminal are respectively located on different sides of the battery core. The first connection end may be located on the first side surface of the battery cell, and the second connection end may be located on the second side surface of the battery cell, wherein the first side surface and the second side surface are arranged opposite to each other. Specifically, the first connection terminal can be located close to the external interface, and the second connection terminal can be located away from the external interface. For example, the second connection terminal can be located close to the motherboard 20 in the electronic device. Optionally, the first connection end and the second connection end may also be located on the same side surface of the battery core.

The first charging circuit can be understood as a circuit provided in the electronic device. When the external interface is connected to the adapter, the first charging circuit can receive the charging current or the charging voltage output by the adapter, and then charge the battery unit.

The first discharging circuit and the second discharging circuit can be understood as circuits provided in an electronic device. When the external interface is connected to the device to be charged, the first discharging circuit can receive the charging current or the charging voltage output by the battery unit, and then receive power from the charging device. The second discharging circuit can receive the charging current or the charging voltage output by the battery unit, and then the module to be powered provided on the main board of the electronic device provides power.

When the device type of the external charging device is the discharge type, it can be determined that the device connected to the external interface is the device to be charged. When a charging device is received from the external interface, the electronic device can control the first discharging circuit to be turned on and the second discharging circuit to turn off to charge the device to be charged based on the battery cell and the first discharging circuit, or control the second discharging circuit to conduct The first discharge circuit is turned on and the first discharge circuit is turned off to supply power to the electronic device based on the battery cell and the second discharge circuit.

In some embodiments, controlling the first discharging circuit to turn on and the second discharging circuit to turn off to charge the device to be charged based on the battery cell and the first discharging circuit specifically includes:

Detect and acquire the first power information of the battery unit and the second power information of the external charging device. Wherein, both the first power information and the second power information can be understood as the remaining power.

When the first power information is greater than the first threshold and the second power information is less than the second threshold, the electronic device can control the first discharging circuit to be turned on and the second discharging circuit to be turned off, so that the battery cell and the second discharging circuit are ready for use. The charging device supplies power, that is, the battery unit is in a reverse charging state, which can also be called a discharging state.

In some embodiments, when the first power information is less than or equal to the first threshold, and the second power information is greater than or equal to the second threshold, the electronic device can control the second discharge circuit to be turned on and the first discharge circuit to be turned off to The device to be charged is used to charge the battery unit, and at the same time, the electronic device can also be powered based on the battery unit and the second discharge circuit.

In the above discharge control method, when the device type of the external charging device is the discharge type, the first discharge circuit or the second discharge circuit can be selectively turned on according to the power supply object of the battery unit to shorten the current path of the discharge circuit, thereby reducing the discharge path The heat loss of the middle circuit improves the efficiency of discharge, and at the same time, it can also realize the reverse charging function of the battery unit.

In some embodiments, when the device type is a charging type, the connection between the battery unit and the first charging circuit is controlled to enable the external charging device to charge the battery unit and make the battery unit in a charging state.

In some embodiments, the electronic device further includes a second charging circuit. Wherein, the second charging circuit is respectively connected to the second connection terminal and the external interface.

When the external interface of the electronic device is connected to the external charging device, the electronic device can identify the charging mode of the external charging device. Among them, the charging mode includes normal mode and fast mode.

It should be noted that the charging speed of the fast charging mode is greater than that of the normal mode. For example, the charging current in the fast charging mode is greater than the charging current in the normal mode. For example, the charging voltage of the fast charging mode is higher than the charging voltage of the normal mode.

When the charging mode is the fast charging mode, the electronic device can control the charging channel between the battery unit and the first charging circuit, so that the external charging device can charge the battery unit through the first charging circuit; when the charging mode is the electronic device, the electronic device The device can control the charging channel connecting the battery unit and the second charging circuit, so that the external charging device can charge the battery unit through the second charging circuit.

In this embodiment, the electronic device can select the charging channel between the battery unit and the first charging circuit or the charging channel between the battery unit and the second charging circuit according to the charging module of the external charging device, which can shorten the current path of the charging circuit, thereby Reduce the line heat loss in the charging path, thereby improving the efficiency of charging.

It should be understood that although the various steps in the flowchart of FIG. 6 are displayed in sequence as indicated by the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless specifically stated in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least part of the steps in FIG. 6 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution of these sub-steps or stages The sequence is not necessarily performed sequentially, but may be performed alternately or alternately with at least a part of other steps or sub-steps or stages of other steps.

The embodiment of the present application also provides a computer-readable storage medium. One or more non-volatile computer-readable storage media containing computer-executable instructions, when the computer-executable instructions are executed by one or more processors, cause the processors to perform operations of the charging control method.

A computer program product containing instructions that, when run on a computer, causes the computer to perform the operation of the charging control method.

The embodiment of the present application also provides an electronic device. As shown in FIG. 7, for ease of description, only parts related to the embodiments of the present application are shown. For specific technical details that are not disclosed, please refer to the method part of the embodiments of the present application. The electronic device can be any terminal device including mobile phone, tablet computer, PDA (Personal Digital Assistant), POS (Point of Sales, sales terminal), car computer, wearable device, etc. Take the electronic device as a mobile phone as an example :

FIG. 7 is a block diagram of a part of the structure of a mobile phone related to an electronic device provided by an embodiment of the present application. Referring to FIG. 7, the mobile phone includes: a radio frequency (RF) circuit 710, a memory 720, an input unit 730, a display unit 740, a sensor 750, an audio circuit 760, a wireless fidelity (WiFi) module 770, and a processor 780 , And power supply 790 and other components. Those skilled in the art can understand that the structure of the mobile phone shown in FIG. 7 does not constitute a limitation on the mobile phone, and may include more or less components than those shown in the figure, or a combination of certain components, or different component arrangements.

Among them, the RF circuit 710 can be used for receiving and sending signals during information transmission or communication, and can receive the downlink information of the base station and send it to the processor 780 for processing; it can also send uplink data to the base station. Generally, the RF circuit includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuit 710 can also communicate with the network and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile Communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division) Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), Email, Short Messaging Service (SMS), etc.

The memory 720 may be used to store software programs and modules. The processor 780 executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory 720. The memory 720 may mainly include a program storage area and a data storage area, where the program storage area may store an operating system, an application program required by at least one function (such as an application program for a sound playback function, an application program for an image playback function, etc.), etc.; The data storage area can store data (such as audio data, address book, etc.) created according to the use of the mobile phone. In addition, the memory 720 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

The input unit 730 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the mobile phone 700. Specifically, the input unit 730 may include a touch panel 731 and other input devices 732. The touch panel 731, also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 731 or near the touch panel 731 Operation), and drive the corresponding connection device according to the preset program. In one embodiment, the touch panel 731 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 780, and can receive and execute the commands sent by the processor 780. In addition, the touch panel 731 can be realized by various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 731, the input unit 730 may also include other input devices 732. Specifically, other input devices 732 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.).

The display unit 740 may be used to display information input by the user or information provided to the user and various menus of the mobile phone. The display unit 740 may include a display panel 741. In an embodiment, the display panel 741 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc. In one embodiment, the touch panel 731 can cover the display panel 741. When the touch panel 731 detects a touch operation on or near it, it transmits it to the processor 780 to determine the type of touch event, and then the processor 780 determines the type of the touch event according to The type of touch event provides corresponding visual output on the display panel 741. Although in FIG. 7, the touch panel 731 and the display panel 741 are used as two independent components to implement the input and input functions of the mobile phone, in some embodiments, the touch panel 731 and the display panel 741 can be integrated. Realize the input and output functions of mobile phones.

The mobile phone 700 may also include at least one sensor 750, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 741 according to the brightness of the ambient light. The proximity sensor can close the display panel 741 and/or when the mobile phone is moved to the ear. Or backlight. Motion sensors can include acceleration sensors. The acceleration sensors can detect the magnitude of acceleration in various directions. When stationary, the magnitude and direction of gravity can be detected. It can be used to identify mobile phone gestures (such as horizontal and vertical screen switching), vibration recognition related functions (such as Pedometer, percussion), etc.; in addition, the mobile phone can also be equipped with other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc.

The audio circuit 760, the speaker 761 and the microphone 762 may provide an audio interface between the user and the mobile phone. The audio circuit 760 can transmit the electric signal converted from the received audio data to the speaker 761, and the speaker 761 converts it into a sound signal for output; on the other hand, the microphone 762 converts the collected sound signal into an electric signal, which is then output by the audio circuit 760. After being received, it is converted into audio data, and then processed by the audio data output processor 780, and then sent to another mobile phone via the RF circuit 710, or the audio data is output to the memory 720 for subsequent processing.

WiFi is a short-distance wireless transmission technology. The mobile phone can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 770. It provides users with wireless broadband Internet access. Although FIG. 7 shows the WiFi module 770, it is understandable that it is not a necessary component of the mobile phone 700 and can be omitted as required.

The processor 780 is the control center of the mobile phone. It uses various interfaces and lines to connect various parts of the entire mobile phone. It executes by running or executing software programs and/or modules stored in the memory 720, and calling data stored in the memory 720. Various functions and processing data of the mobile phone can be used to monitor the mobile phone as a whole. In one embodiment, the processor 780 may include one or more processing units. In an embodiment, the processor 780 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and application programs, etc.; the modem processor mainly processes wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 780.

The mobile phone 700 also includes a power source 790 (such as a battery) for supplying power to various components. Preferably, the power source may be logically connected to the processor 780 through a power management system, so that functions such as charging, discharging, and power management are realized through the power management system. The power supply 790 includes a plurality of battery cells 11 and a plurality of switch units connected to the plurality of battery cells in a one-to-one correspondence. The power supply 790 may be a charging control device in an embodiment of the application.

In an embodiment, the mobile phone 700 may also include a camera, a Bluetooth module, and the like.

In the embodiment of the present application, the processor 780 included in the electronic device implements the steps of the charging control method when the computer program stored in the memory is executed.

Any reference to memory, storage, database or other media used in this application may include non-volatile and/or volatile memory. Non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which acts as external cache memory. As an illustration and not a limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The above examples only express a few implementations of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims

An electronic device including:

The battery unit includes a battery cell and a first connection terminal and a second connection terminal respectively connected to the battery cell;

External interface for external adapter or device to be charged;

The first charging circuit is respectively connected to the first connection terminal and the external interface, and is arranged close to the external interface, and is used to charge the battery unit when the adapter is externally connected;

The first discharge circuit is respectively connected to the first connection terminal and the external interface, and is arranged close to the external interface, and is configured to supply power to the device to be charged based on the battery unit when the device to be charged is externally connected;

The second discharging circuit is connected to the second connection terminal and is located away from the external interface, and supplies power to the electronic device based on the battery unit.
The electronic device according to claim 1, wherein the battery cell comprises a battery cell, and a first set of tabs and a second set of tabs protruding from the battery cell are provided, wherein,

The first set of tabs includes positive and negative tabs connected to the first connection end respectively; and

The second set of tabs includes positive and negative tabs connected to the second connecting end respectively.
The electronic device according to claim 2, wherein the first set of tabs and the second set of tabs are arranged on the same side of the battery cell.
3. The electronic device according to claim 2, wherein the first set of tabs and the second set of tabs are respectively arranged on opposite sides of the battery cell.
The electronic device according to claim 1, wherein the electronic device further comprises:

The first controller, the first controller is respectively connected to the external interface, the first discharge circuit, and the second discharge circuit; wherein,

The first controller is configured to control the first discharging circuit to be turned on and the second discharging circuit to be turned off when the external interface is connected to the device to be charged, based on the battery cell and the first discharging circuit Charge the device to be charged.
The electronic device according to claim 1, wherein the electronic device further comprises: a first controller, the first controller is respectively connected with the external interface, the first discharge circuit, and the second discharge circuit, so The first controller is also used to control the second discharge circuit to be turned on and the first discharge circuit to be turned off, so as to supply power to the electronic device based on the battery unit and the second discharge circuit.
The electronic device according to any one of claims 1-6, wherein the electronic device further comprises:

The second charging circuit is respectively connected to the second connection end and the external interface, and is arranged away from the external interface, and is used to charge the battery unit when the adapter is connected to the external connection.
The electronic device according to claim 7, wherein the first controller is also connected to the second charging circuit, and when the external interface is connected to an external charging device, the first controller is also used to identify all The charging mode of the external charging device, the charging mode includes a normal mode and a fast mode;

When the charging mode is the fast charging mode, the first controller controls to turn on the charging channel of the battery unit and the first charging circuit, so that the external charging device passes through the first charging The circuit charges the battery unit;

When the charging mode is the normal mode, the first controller controls to turn on the charging channel of the battery unit and the second charging circuit, so that the external charging device passes through the second charging circuit Charge the battery unit.
The electronic device according to claim 7, wherein the electronic device further comprises:

The first connection module is respectively connected to the first charging circuit and the first discharging circuit, and is used to selectively conduct or disconnect the connection between the battery unit and the first connection terminal;

The second connection module is respectively connected to the second charging circuit and the second discharging circuit, and is used to selectively conduct or disconnect the connection between the battery unit and the second connection terminal.
The electronic device according to claim 9, wherein the first connection template includes a second controller, and the second connection module includes a third controller; the second controller is connected to the first charging circuit, The first discharging circuit, the first connecting terminal, and the third controller are connected, and the third controller is respectively connected with the second discharging circuit and the second connecting terminal;

The second controller is used to identify the charging and discharging state of the battery unit, and select to turn on or disconnect the connection between the first connection terminal and the battery unit according to the charging and discharging state, and is also used to Output a corresponding control instruction to the third controller in the charge and discharge state, so that the third controller selects to turn on or disconnect the second connection terminal and the battery unit;

The third controller is used for identifying the charging and discharging state of the battery unit, and selecting to conduct or disconnect the connection between the second connection terminal and the battery unit according to the charging and discharging state, and is also used for The charging and discharging state outputs corresponding control instructions to the second controller, so that the second controller selects to conduct or disconnect the second connection terminal and the battery unit.
The electronic device according to claim 9, wherein the first connection module further comprises a first protection circuit, and the second connection module further comprises a second protection circuit; wherein,

The first protection circuit is connected to the first charging circuit and the first discharging circuit, and is used to protect the first charging circuit and the first discharging circuit;

The second protection circuit is connected to the second charging circuit and the second discharging circuit, and is used to protect the second charging circuit and the second discharging circuit.
A discharge control method, applied to an electronic device including an external interface, the method includes:

Detecting the device type of the external charging device connected to the external interface; and

According to the device type, the connection between the battery unit and the first charging circuit, the first discharging circuit, or the second discharging circuit is controlled to be turned on, so that the battery unit is in a charging state or a reverse charging state.
The method according to claim 12, wherein the device type includes a charging type and a discharging type, and the connection between the battery unit and the first charging circuit, the first discharging circuit, or the second discharging circuit is controlled according to the device type. Connecting to make the battery unit in a charging state or a reverse charging state, including:

When the device type is a discharge type, the first discharge circuit is controlled to be turned on and the second discharge circuit is turned off, so as to charge the device to be charged based on the battery unit and the first discharge circuit.
The method according to claim 12, wherein the device type includes a charging type and a discharging type, and the connection between the battery unit and the first charging circuit, the first discharging circuit, or the second discharging circuit is controlled according to the device type. Connecting to make the battery unit in a charging state or a reverse charging state, including:

When the device type is a discharge type, the second discharge circuit is controlled to be turned on and the first discharge circuit is turned off, so as to supply power to the electronic device based on the battery unit and the second discharge circuit.
The method according to claim 13, wherein the method further comprises:

Detecting and acquiring the first power information of the battery unit and the second power information of the external charging device;

When the first power information is greater than the first threshold and the second power information is less than the second threshold, the first discharging circuit is controlled to be turned on and the second discharging circuit is turned off, so that the battery unit And the second discharge circuit supplies power to an external charging device.
The method according to claim 15, wherein the method further comprises:

When the first power information is less than or equal to the first threshold, and the second power information is greater than or equal to the second threshold, control the second discharge circuit to turn on and the first discharge circuit to turn off To enable the device to be charged to charge the battery unit and supply power to the electronic device based on the battery unit and the second discharge circuit.
The method according to claim 12, wherein the device types include charging type and discharging type, and the method further comprises:

When the device type is a charging type, controlling to turn on the connection between the battery unit and the first charging circuit, so that the external charging device charges the battery unit and makes the battery unit in a charging state.