Foldable electronic devices

Abstract

A foldable electronic device comprises: a charging circuit (11), a control circuit (12), a first battery branch, a second battery branch, a first accommodating space (111), and a second accommodating space (112). The first battery branch and the second battery branch are connected in parallel, the first battery branch comprises a first battery (13) and a first switch (14) connected in series, and the second battery branch comprises a second battery (15). The first battery (13) is arranged in the first accommodating space (111), and the second battery (15) is arranged in the second accommodating space (112). The first accommodating space (111) and the second accommodating space (112) are connected via a bendable member (113). The first battery (13) and the second battery (15) are connected in the above-mentioned connection mode, and the charging circuit (11) and the first switch (14) are controlled by the control circuit (12) to achieve simultaneous charging of the first battery (13) and the second battery (15), thereby improving the charging speed of the electronic device. By rationally arranging the space of the first battery (13) and the second battery (15), the space utilization rate inside the electronic device is improved, thereby maximizing the battery capacity of the electronic device.

Description

[0001] This application claims priority to Chinese patent application No. 201910510699.9 filed with the State Intellectual Property Office of China on June 13, 2019, and priority to Chinese patent application entitled “Foldable Electronic Device,” all contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the field of terminal technology, and in particular to a foldable electronic device. Background Art

[0003] With the development of technology, mobile terminals are becoming increasingly powerful, allowing users to use them for work and entertainment. Demand for larger battery capacities and faster charging is increasing. A single large-capacity battery design is no longer sufficient. A dual-battery design can improve charging speed while maintaining a large battery capacity, resulting in greater battery stability.

[0004] The current dual-battery design includes series charging and discharging design and parallel charging and discharging design. Among them, the series charging and discharging design requires a matching charger to realize the series charging function, and is not compatible with the universal chargers that are widely used in the market; the parallel charging and discharging design is relatively more widely used, such as Figure 1 As shown, the charging and discharging circuit includes two parallel batteries (battery 1 and battery 2), a load switch unit and a battery status detection control unit. The battery status detection control unit controls the load switch unit to switch the batteries. There is only one battery in the charging and discharging process, that is, battery 2 is charged after battery 1 is fully charged, and battery 2 starts to discharge after battery 1 is discharged.

[0005] The charging and discharging process of the above dual-battery design must pass through the load switch unit, which has heat loss and consumes battery capacity. In addition, only one battery is in a working state during the charging and discharging process, resulting in insufficient discharge capacity and a long charging time. Summary of the Invention

[0006] The present application provides a foldable electronic device, which improves the charging speed and discharge capacity of the electronic device.

[0007] In order to achieve the above-mentioned objectives, the present application provides a foldable electronic device, including two batteries connected in parallel, and the two batteries are respectively arranged in a first accommodating space and a second accommodating space; the first accommodating space and the second accommodating space are connected by a bendable part; when charging, the charging circuit charges the two batteries at the same time; the electronic device also includes a switch for adjusting the charging current flowing to the first battery.

[0008] The foldable electronic device provided in this embodiment connects a first battery and a second battery of different capacities in parallel and charges the two batteries simultaneously, thereby improving the charging speed of the electronic device and adjusting the charging current of the battery through a switch to ensure charging safety.

[0009] In one implementation, an electronic device includes a first switch and a second switch connected in parallel. The two switches are connected in series to the branch containing the first battery (the smaller of the two batteries). The first switch is a charging current-limiting switch, and the second switch is a discharging switch. During charging, a control circuit turns the first switch on and the second switch off, allowing the charging circuit to charge both batteries simultaneously. During discharging, the control circuit turns the first switch off and the second switch on, allowing both batteries to simultaneously power the load circuit of the electronic device. By controlling the operating states of the first and second switches, both batteries can be charged or discharged simultaneously, improving the charging speed and discharging capacity of the electronic device.

[0010] In one implementation, the electronic device further includes an ammeter, which can be connected in series to the branch circuit containing the first battery and / or the branch circuit containing the second battery to detect the charging current of each battery. When the charging current detected by the ammeter exceeds the safety threshold current of the battery, the charging circuit is controlled to reduce the output charging current to ensure that both batteries operate normally, avoid overcharging or over-discharging of the batteries, and extend the battery life.

[0011] In one implementation, the electronic device further includes a fuel meter. The fuel meter detects the total charge level of the two batteries and displays the total charge level on a display interface of the electronic device. The fuel meter also detects the total charging current of the two batteries. When the total charging current exceeds a safety threshold current output by the charging circuit, the charging current output by the charging circuit is reduced to ensure that both batteries operate normally, prevent overcharging or over-discharging of the two batteries, and extend the service life of the two batteries.

[0012] In one implementation, the electronic device further includes a first temperature sensor and a second temperature sensor, each of which is connected to the control circuit. The first temperature sensor is used to detect the operating temperature of the first battery, and the second temperature sensor is used to detect the operating temperature of the second battery. The control circuit detects the operating temperatures of the first and second batteries by detecting the first and second temperature sensors. When the operating temperatures exceed the battery safety threshold, the control circuit dynamically adjusts the charging current of the charging circuit to prevent the batteries from charging at high temperatures, thereby extending the battery life and achieving an optimal charging speed.

[0013] In one implementation, the electronic device further includes a first printed circuit board and a second printed circuit board. The first printed circuit board and the second printed circuit board are respectively disposed in the first accommodation space and the second accommodation space. The two batteries are connected to the two printed circuit boards via connectors, respectively. Other circuit components within the electronic device can be disposed on corresponding printed circuit boards based on their connection relationships with the two batteries, thereby achieving a compact layout. If there is excess space within the electronic device, the battery capacity of the electronic device can be further expanded, for example, by adding a third battery, or by expanding the capacity of the two existing batteries to maximize the battery capacity of the electronic device.

[0014] The foldable electronic device provided in this embodiment includes a charging circuit, a control circuit, a first battery branch, a second battery branch, a first storage space and a second storage space. The first battery branch and the second battery branch are connected in parallel, the first battery branch includes a first battery and a first switch connected in series, and the second battery branch includes a second battery. The first battery is arranged in the first storage space, the second battery is arranged in the second storage space, and the first storage space and the second storage space are connected by a bendable part. The first battery and the second battery are connected in the above-mentioned connection method, and the charging circuit and the first switch are controlled by the control circuit to realize simultaneous charging of the two batteries, thereby improving the charging speed of the electronic device. By rationally arranging the space of the first battery and the second battery, the space utilization rate inside the electronic device is improved, thereby maximizing the battery capacity of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of circuit connections for a dual-battery design in the prior art;

[0016] Figure 2 A schematic diagram of the hardware connections inside the first foldable electronic device provided in an embodiment of the present application;

[0017] Figure 3 A schematic diagram of the spatial structure of a first foldable electronic device provided in an embodiment of the present application;

[0018] Figure 4 A schematic diagram of the hardware connections within the second foldable electronic device provided in an embodiment of the present application;

[0019] Figure 5 A schematic diagram of the hardware connections within the third electronic device provided in an embodiment of the present application;

[0020] Figure 6 A schematic diagram of hardware connections within a fourth electronic device provided in an embodiment of the present application;

[0021] Figure 7A schematic diagram of hardware connections within a fifth electronic device provided in an embodiment of the present application;

[0022] Figure 8 A schematic diagram of the spatial structure of a second foldable electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] An embodiment of the present application provides a foldable electronic device, which can have the following two usage states: a folded state and an unfolded state. In the folded state, the electronic device can have only one display screen (main display screen) for display, and in the unfolded state, each display screen can display simultaneously, such as dual-screen display, triple-screen display, etc. The foldable electronic device can be an electronic device such as a smart phone, a laptop computer, a tablet computer, a smart watch, an e-book, a VR (Virtual Reality) device, an AR (Augmented Reality) device, etc. The foldable electronic device supports the installation of various types of desktop applications, and users can display various desktop applications through a single screen, dual screens or multiple screens. Desktop applications include but are not limited to photo applications, browser applications, instant messaging applications, game applications, video player applications, office automation applications, etc.

[0024] Since foldable electronic devices have at least two display screens, the power consumption of multi-screen display is greater than that of single-screen display during actual use. Therefore, it is necessary to expand the battery capacity of foldable electronic devices to increase the standby time of electronic devices. In order to achieve the above technical effects, the embodiment of the present application adopts a multi-battery parallel design, connecting batteries of different capacities according to a preset connection method and making a reasonable spatial layout, thereby improving the space utilization of multiple batteries inside the electronic device and maximizing the battery capacity of the electronic device. The electronic device can realize the simultaneous charging and discharging of multiple batteries through software control, thereby improving the charging speed and discharge capacity of the battery.

[0025] The foldable electronic device provided by the present application is described in detail below using specific embodiments. The following specific embodiments can be combined with each other, and the same or similar content will not be repeated in different embodiments.

[0026] For ease of description, the following embodiments are based on an electronic device with two storage spaces and two batteries as an example to illustrate the circuit connections and spatial layout within the electronic device. Of course, the storage space and number of batteries in the electronic device can be expanded according to actual needs.

[0027] Figure 2 This is a schematic diagram of the hardware connections inside the first foldable electronic device provided in the embodiment of the present application. Figure 2As shown, the electronic device 10 provided in this embodiment includes a charging circuit 11, a control circuit 12, a first battery branch, and a second battery branch. The first battery branch and the second battery branch are connected in parallel. The first battery branch includes a first battery 13 and a first switch 14, which are connected in series. The second battery branch includes a second battery 15.

[0028] Figure 3 This is a schematic diagram of the spatial structure of the first foldable electronic device provided in the embodiment of the present application. Figure 3 As shown, the electronic device 10 provided in this embodiment includes: a first accommodating space 111 and a second accommodating space 112, which are connected by a bendable member 113. The first battery 13 is disposed in the first accommodating space 111, and the second battery 15 is disposed in the second accommodating space 112. Optionally, the first switch 14 and the control circuit 12 are disposed in the first accommodating space 111, and the charging circuit 11 is disposed in the second accommodating space 112.

[0029] When a charger is connected to the electronic device, the control circuit 12 can control the charging circuit 11 to simultaneously charge the first battery 13 and the second battery 15. The control circuit 12 is also used to control the working state of the first switch 14 to adjust the charging current flowing to the first battery 13.

[0030] It should be noted that the first switch 14 of this embodiment is a charging current-limiting switch, which not only has a switching function but also a current-limiting function. The control circuit 12 controls the charging current flowing to the first battery 13 by controlling the conductivity of the first switch 14. Specifically, the control circuit 12 can control the charging current of the first battery 13 by adjusting the impedance value of the first switch 14.

[0031] In this embodiment, the battery capacity of the first battery 13 is smaller than that of the second battery 15. To enable simultaneous charging and discharging of the two batteries, a first switch 14 is connected in series with the branch where the first battery 13 resides. This limits the charging current flowing to the first battery 13, prevents overcharging of the first battery 13, and extends the battery life of the first battery 13, while ensuring both charging speed and battery life.

[0032] The foldable electronic device provided in this embodiment connects a first battery and a second battery of different capacities in a predetermined connection method. The control circuit controls the charging circuit and the first switch to simultaneously charge the first and second batteries, thereby improving the charging speed of the electronic device. By rationally arranging the first and second batteries of different capacities, the space utilization within the electronic device is improved, thereby maximizing the battery capacity of the electronic device.

[0033] Figure 4 This is a schematic diagram of the hardware connections inside the second foldable electronic device provided in the embodiment of the present application. Figure 2 Based on the embodiment shown, Figure 4 As shown, the first battery branch further includes a second switch 16, which is connected in parallel with the first switch 14. The first battery 13 supplies power to the load circuit of the electronic device 10 via the second switch 16. In this embodiment, the second switch 16 is a discharge switch, and the control circuit 12 supplies power to the load circuit of the electronic device 10 by controlling the conduction of the second switch 16.

[0034] Since the second switch 16 can be connected in parallel with the first switch 14 , the second switch can be disposed in the first accommodating space 111 .

[0035] During the charging process, the control circuit 12 controls the charging circuit to simultaneously charge the first battery 13 and the second battery 15. Specifically, the control circuit 12 controls the first switch 14 on the first battery 13 branch to conduct, and controls the second switch 16 on the first battery 13 branch to close, thereby enabling the simultaneous charging of the first battery 13 and the second battery 15 in the electronic device. Because the battery capacity of the first battery 13 is smaller than that of the second battery 15, the control circuit 12 controls the charging current of the first battery 13 branch by controlling the degree of conduction of the first switch 14.

[0036] During the discharge process, the control circuit 12 controls the first switch 14 and the second switch 16 so that the first battery 13 and the second battery 15 can simultaneously supply power to the load. Specifically, the control circuit 12 controls the first switch 14 on the first battery 13 branch to be closed, and controls the second switch 16 on the first battery 13 branch to be closed. It should be noted that the impedance of the second switch 16 is smaller than that of the first switch 14.

[0037] Generally, for batteries made of the same material, the greater the capacity, the lower the resistance. In this embodiment, because the capacity of the first battery is smaller than that of the second battery, and the materials of the first and second batteries are identical, the resistance of the first battery is greater than that of the second battery. It can be understood that, at a constant voltage, the current in the first battery branch is smaller than the current in the second battery branch. During discharge, the total current in the discharge circuit equals the sum of the current in the first and second battery branches. Connecting two batteries in parallel improves the discharge capacity of the electronic device.

[0038] The foldable electronic device provided in this embodiment connects a first battery and a second battery of different capacities in a preset connection method. The control circuit controls the charging circuit, the first switch, and the second switch to achieve simultaneous charging of the first battery and the second battery, or simultaneous discharge of the first battery and the second battery into the load circuit of the electronic device, thereby improving the charging speed and discharge capacity of the electronic device.

[0039] Figure 5 This is a schematic diagram of the hardware connections inside the third electronic device provided in the embodiment of the present application. Figure 2 or Figure 4 Based on the embodiment shown, Figure 5 As shown, the electronic device 10 provided in this embodiment further includes a first ammeter 17. The first ammeter 17 is connected in series with the first battery 13 and is configured to detect the charging current of the first battery 13. When the charging current of the first battery 13 detected by the first ammeter 17 is greater than a first preset current, the control circuit 12 controls the operation of the first switch 14 to reduce the charging current of the first battery 13. The first preset current is a safety threshold current of the first battery.

[0040] The first ammeter 17 may be disposed in the first accommodating space 111 .

[0041] During the charging process, the control circuit 12 detects the current value of the first ammeter 17 to obtain the charging current of the first battery 13. If the charging current of the first battery 13 is greater than the first preset current of the first battery 13, the control circuit 12 controls the operation state of the first switch 14, for example, by increasing the impedance of the first switch 14 to reduce the charging current of the first battery 13. Alternatively, the control circuit 12 controls the charging circuit 11 to reduce the output charging current.

[0042] Optionally, the electronic device may further include a second ammeter ( Figure 5 (not shown), a second ammeter can be connected in series with the second battery to detect the charging current of the second battery. During the charging process, the control circuit 12 detects the current value of the second ammeter to determine the charging current of the second battery 15. If the charging current of the second battery 15 is greater than a second preset current of the second battery 15, the control circuit 12 reduces the charging current output by the charging circuit 11. The second preset current is the safety threshold current of the second battery.

[0043] Optionally, the electronic device may further include a third ammeter ( Figure 5(not shown) is used to detect the total charging current flowing through the first and second batteries 13, 15. During the charging process, the control circuit 12 detects the current value of the third ammeter to determine the total charging current flowing through the first and second batteries 13, 15. If the total charging current flowing through the first and second batteries 13, 15 exceeds a third preset current, the control circuit 12 reduces the charging current output by the charging circuit 11 to prevent overcharging of the first and second batteries 13, 15. The third preset current is a safety threshold current output by the charging circuit 11.

[0044] The discharge process is the same as that in the above embodiment. Please refer to the above embodiment for details, and no further details will be given here.

[0045] The foldable electronic device provided in this embodiment connects a first battery and a second battery of different capacities according to a preset connection method. The control circuit controls the charging circuit and the first switch to simultaneously charge the first and second batteries, thereby improving the charging speed of the electronic device. The control circuit also detects the charging current of the first and / or second batteries through an ammeter. When the charging current exceeds a preset current, the control circuit controls the charging circuit and / or the first switch to reduce the charging current of the first and / or second batteries, thereby preventing overcharging of the electronic device's batteries and extending the battery life, while ensuring both charging speed and battery life.

[0046] Figure 6 This is a schematic diagram of the hardware connections inside the fourth electronic device provided in the embodiment of the present application. Figure 2 or Figure 4 or Figure 5 Based on the embodiment shown, Figure 6 As shown, the electronic device 10 provided in this embodiment further includes a fuel meter 18. The first battery branch and the second battery branch are connected in parallel and then in series with the fuel meter 18. The fuel meter 18 is used to detect the total charge or total charging current of the first battery 13 and the second battery 15. The fuel meter 18 can be located in the first accommodation space 111 or the second accommodation space 112, which is not limited in this embodiment.

[0047] During the charging process, the control circuit 12 detects the total charging current flowing through the first battery 13 and the second battery 15 by detecting the fuel gauge 18. If the total charging current flowing through the first battery 13 and the second battery 15 is greater than a third preset current, the control circuit 12 reduces the charging current output by the charging circuit 11 to prevent overcharging of the first battery 13 and the second battery 15. At the same time, the control circuit 12 detects the total charge level of the first battery 13 and the second battery 15 by detecting the fuel gauge 18, and displays the total charge level of the electronic device 10 on the user display interface of the electronic device 10. For example, if the total charge level of the electronic device 10 is 80%, the currently displayed total charge level is the total charge level of the first battery 13 and the second battery 15 in the electronic device 10.

[0048] During the discharge process, the control circuit 12 obtains the total power level of the first battery 13 and the second battery 15 by detecting the power meter 18 , and displays the total power level of the batteries of the electronic device 10 on the user display interface of the electronic device 10 .

[0049] The control circuit 12 detects the total charge level of the first battery 13 and the second battery 15 by monitoring the fuel gauge 18. When the battery is fully charged, the charging circuit 11 is controlled to stop charging the battery. When the total charge level of the battery is determined to be less than or equal to a preset charge level (e.g., 20%), a prompt message is displayed on the user interface of the electronic device 10, prompting the user to charge the electronic device promptly upon receiving the prompt message.

[0050] The foldable electronic device provided in this embodiment connects a first battery and a second battery of different capacities in a preset connection method, controls the charging circuit and the first switch through a control circuit, and charges the first battery and the second battery simultaneously, thereby improving the charging speed of the electronic device. The control circuit also obtains the total power value of the first battery and the second battery by detecting the fuel gauge, and displays the current total power of the electronic device on the user display interface. The control circuit obtains the total charging current flowing to the first battery and the second battery by detecting the fuel gauge. When the total charging current is greater than a third preset current, the control circuit reduces the total charging current output by the charging circuit, thereby preventing overcharging of the battery of the electronic device, extending the battery life, and ensuring both the charging speed and the battery life.

[0051] Figure 7 This is a schematic diagram of the hardware connections inside the fifth electronic device provided in the embodiment of the present application. Figure 2 、 Figures 4 to 6 Based on the embodiment shown, Figure 7 As shown, the electronic device 10 provided in this embodiment further includes: a first temperature sensor 19 and a second temperature sensor 20. The first temperature sensor 19 and the second temperature sensor 20 are respectively connected via control lines (such as Figure 7The first temperature sensor 19 can be disposed near the first battery 13 to detect the operating temperature of the first battery 13. The second temperature sensor 20 can be disposed near the second battery 15 to detect the operating temperature of the second battery 15.

[0052] Since the first battery 13 is located in the first accommodation space 111, the first temperature sensor 19 is also located in the first accommodation space 111. Since the second battery 15 is located in the second accommodation space 112, the second temperature sensor 20 is also located in the second accommodation space.

[0053] Optionally, the first temperature sensor 19 and the second temperature sensor 20 of this embodiment may be a negative temperature coefficient thermistor (NTC). NTCs are made primarily of metal oxides such as manganese, cobalt, nickel, and copper, using a ceramic process. They are widely used in temperature measurement, temperature control, and temperature compensation. The resistance of an NTC decreases exponentially as the temperature rises.

[0054] During the charging process, the control circuit 12 detects the operating temperature of the first battery 13 by detecting the resistance value of the first temperature sensor 19; and detects the operating temperature of the second battery 15 by detecting the resistance value of the second temperature sensor 20. If the operating temperature of the first battery 13 is greater than the safety threshold temperature of the first battery 13, the control circuit 12 controls the operating state of the first switch 14, for example, by increasing the impedance of the first switch 14 to reduce the charging current of the first battery 13. Alternatively, the control circuit 12 reduces the charging current output by the charging circuit 11 to reduce the operating temperature of the first battery 13. If the operating temperature of the second battery 15 is greater than the safety threshold temperature of the second battery 15, the control circuit 12 reduces the charging current output by the charging circuit 11 to reduce the charging current of the second battery 15, thereby reducing the operating temperature of the second battery 15.

[0055] The discharge process is the same as that in the above embodiment. Please refer to the above embodiment for details, and no further details will be given here.

[0056] The foldable electronic device provided in this embodiment connects a first battery and a second battery of different capacities in a predetermined connection method. The control circuit controls the charging circuit and the first switch to simultaneously charge the first and second batteries, thereby improving the charging speed of the electronic device. The control circuit also detects the operating temperatures of the first and second batteries by detecting a first temperature sensor located near the first battery and a second temperature sensor located near the second battery. When the operating temperature of the first and / or second batteries exceeds the safety threshold temperature of the batteries, the control circuit controls the charging circuit to reduce the charging current output by the charging circuit, thereby preventing the electronic device's batteries from charging at high temperatures, extending the battery life, and ensuring both charging speed and battery life.

[0057] based on Figure 7 The foldable electronic device shown in the figure includes the following internal circuit components: a charging circuit, a control circuit, a first switch, a second switch, a first battery, a second battery, a first temperature sensor, a second temperature sensor, a first ammeter, and a fuel gauge. The connections between these circuit components are the same as in the previous embodiment and will not be further described here. By rationally arranging these internal circuit components, the battery capacity of the electronic device can be maximized. For example, a third battery can be added within the saved space, or the battery capacity of the existing two batteries can be expanded.

[0058] The following is a specific example Figure 7 The spatial layout of each circuit component inside the electronic device is described in detail. The spatial layout provided in the following embodiment is only an example, and those skilled in the art can adjust the position of each circuit component according to actual needs.

[0059] Figure 8 This is a schematic diagram of the spatial structure of a second foldable electronic device provided in an embodiment of the present application. Figure 3 Based on the embodiment shown, the electronic device 10 provided in this embodiment further includes a first printed circuit board 114 and a second printed circuit board 115. In this embodiment, the size of the first printed circuit board 114 is larger than that of the second printed circuit board 115.

[0060] Generally, a larger battery capacity increases its size and weight. In this embodiment, the capacity of the first battery 13 is smaller than that of the second battery 15. Therefore, the size of the first battery 13 is smaller than that of the second battery 15. To fully utilize the two storage spaces of the electronic device 10, the smaller first battery 13 and the larger first printed circuit board 114 are placed in the first storage space 111, while the larger second battery 15 and the smaller second printed circuit board 115 are placed in the second storage space 112.

[0061] Specifically, the first printed circuit board 114 is connected to the first battery 13 via a first connector 116, and the second printed circuit board 115 is connected to the second battery 15 via a second connector 117. The first switch 14, second switch 16, control circuit 12, first ammeter 17, fuel gauge 18, and first temperature sensor 19 are disposed on the first printed circuit board 114. The charging circuit 11, second temperature sensor 20, and charging port 119 are disposed on the second printed circuit board 115. The second battery 15 is connected to the first printed circuit board 114 via a flexible printed circuit (FPC) 118. This arrangement arranges the various circuit components in an orderly manner on the printed circuit board, achieving a compact layout and freeing up space for other functional components.

[0062] It should be noted that the charging circuit 11 of this embodiment is arranged on the second printed circuit board 115 near the charging port 119. The above arrangement can shorten the charging path to the greatest extent, reduce the path loss of the charging path, and improve the charging speed.

[0063] Optionally, in this embodiment, the first battery 13 can be disposed on a side of the first accommodating space 111 close to the bendable member 113, and the second battery 15 can be disposed on a side of the second accommodating space 112 close to the bendable member 113. Correspondingly, the first printed circuit board 114 can be disposed on a side of the first accommodating space 111 away from the bendable member 113, and the second printed circuit board 115 can be disposed on a side of the second accommodating space 112 away from the bendable member 113.

[0064] The electronic device provided in this embodiment has its internal space divided into two compartments by a flexible member. Each compartment can accommodate a battery, thereby increasing the overall battery capacity of the electronic device. By rationally arranging the various circuit components within the electronic device, path loss within the electronic device's internal charging path is reduced, thereby increasing the charging speed of the electronic device's battery.

[0065] This embodiment is described using two accommodating spaces as an example. Of course, an electronic device with more than two accommodating spaces (for example, three accommodating spaces, folded twice) can be designed according to actual needs. Correspondingly, a third battery can be added to the increased accommodating space. If the battery capacity of the third battery is smaller than the battery capacity of the first battery, a third switch (charging current limiting switch) and a fourth switch (discharging switch) can be added to the branch where the third battery is located to ensure the safety of charging and discharging of the third battery. The three batteries are reasonably arranged in three accommodating spaces. The implementation principle and technical effects are similar to those of the above embodiment and will not be elaborated here.

[0066] It should be noted that the electronic device provided in this application is not limited to the aforementioned foldable electronic device. As long as the internal space of the electronic device can be divided into at least two accommodating spaces, the circuits and the layout of the components within the electronic device provided in the aforementioned embodiments can be adopted, and the fast charging and discharging function can be achieved through software control. For example, the electronic device can also be a slider phone, a flip phone, etc.

[0067] The above is only a specific implementation method of the present application, but the protection scope of the present application is not limited to this. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the protection scope of the present application.

Claims

1. A foldable electronic device, characterized in that: The electronic device comprises: A charging circuit, a control circuit, a first battery branch, a second battery branch, a first accommodating space, and a second accommodating space; The first accommodating space and the second accommodating space are connected by a bendable member; The first battery branch is arranged in the first accommodation space, and the second battery branch is arranged in the second accommodation space; The first battery branch and the second battery branch are connected in parallel; The first battery branch includes a first battery and a first switch, and the first battery and the first switch are connected in series; The second battery branch includes a second battery; When the charging circuit receives the charging current, the control circuit controls the charging circuit to charge the first battery and the second battery; wherein: the control circuit controls the charging current of the first battery by adjusting the impedance value of the first switch; The battery capacity of the first battery is smaller than the battery capacity of the second battery; the first charging current is the current flowing to the first battery, the second charging current is the current flowing to the second battery, and the first charging current is smaller than the second charging current.

2. The electronic device according to claim 1, wherein The electronic device further comprises: a first ammeter; The first ammeter is connected in series with the first battery and is used to detect the charging current of the first battery; When the charging current of the first battery detected by the first ammeter is greater than a first preset current, the control circuit controls the working state of the first switch to reduce the charging current of the first battery.

3. The electronic device according to claim 1 or 2, characterized in that: The electronic device further includes a fuel gauge, which is used to detect the total charge or total charging current of the first battery and the second battery.

4. The electronic device according to claim 3, wherein: The electronic device displays battery power information based on the total power of the first battery and the second battery detected by the power gauge, where the battery power information indicates the total power of the first battery and the second battery.

5. The electronic device according to any one of claims 1, 2, and 4, characterized in that: The electronic device further includes a first temperature sensor and a second temperature sensor: The first temperature sensor is used to detect the operating temperature of the first battery; The second temperature sensor is used to detect the operating temperature of the second battery; The control circuit is used to control the charging current output by the charging circuit according to the operating temperature of the first battery or the operating temperature of the second battery.

6. The electronic device according to claim 2, wherein: The electronic device further includes a fuel gauge, a first temperature sensor and a second temperature sensor; The first temperature sensor is used to detect the operating temperature of the first battery; The second temperature sensor is used to detect the operating temperature of the second battery; The fuel gauge is used to detect the total charging current flowing to the first battery and the second battery; The control circuit is configured to control the charging current output by the charging circuit according to at least one of the following conditions: a total charging current flowing to the first battery and the second battery detected by the fuel gauge; a charging current of the first battery detected by the first ammeter; an operating temperature of the first battery detected by the first temperature sensor; or The second temperature sensor detects an operating temperature of the second battery.

7. The electronic device according to any one of claims 1, 2, and 4, characterized in that: The first switch and the control circuit are disposed in the first accommodation space, and the charging circuit is disposed in the second accommodation space.

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