Foldable electronic devices

Abstract

The present application discloses a foldable electronic device, which includes a first foldable part, a second foldable part, and a third foldable part. The first foldable part is provided with an electrically connected first battery and a first wireless charging coil, and the first wireless charging coil is used to charge the first battery. The second foldable part is rotatably connected to the first foldable part, and the second foldable part is provided with an electrically connected second battery and a second wireless charging coil, and the second wireless charging coil is used to charge the second battery. The third foldable part is rotatably connected to the second foldable part, and the third foldable part is provided with an electrically connected third battery and a third wireless charging coil, and the third wireless charging coil is used to charge the third battery. The foldable electronic device provided by the embodiment of the present application can increase the charging power of the battery, increase the charging speed of the foldable electronic device, and improve the charging efficiency of the foldable electronic device.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and in particular to a foldable electronic device. Background Art

[0002] As people pursue larger screens, the screens of electronic devices are getting bigger and bigger. However, large-screen electronic devices are not convenient to carry. The emergence of foldable electronic devices allows people to enjoy the pleasure of large screens while being easy to carry.

[0003] In the field of charging technology, electronic devices are mainly charged by wired charging. Taking a mobile phone as an example, when you need to charge your mobile phone, you can connect the mobile phone to a charging device through a charging cable (such as a universal serial bus (USB) cable), and transmit the output power of the charging device to the mobile phone through the charging cable to charge the battery in the mobile phone. However, with the popularity of wireless charging, more and more foldable electronic devices support wireless charging functions, that is, wireless charging coils are installed in foldable electronic devices, and wireless charging of foldable electronic devices is achieved through wireless charging coils, thereby facilitating the charging of foldable electronic devices.

[0004] However, the conversion efficiency of wireless charging is low, which causes the wireless charging coil to heat up severely. More energy is dissipated in the form of heat, resulting in a slower charging speed for foldable electronic devices, and further resulting in a relatively low charging efficiency for foldable electronic devices. Summary of the invention

[0005] The embodiment of the present application discloses a foldable electronic device, which can increase the charging speed of the foldable electronic device and improve the charging efficiency of the foldable electronic device.

[0006] In order to achieve the above object, the present application discloses a foldable electronic device, the foldable electronic device comprising:

[0007] A first folding part, wherein a first battery and a first wireless charging coil are disposed inside the first folding part, and the first battery and the first wireless charging coil are electrically connected;

[0008] a second folding part, wherein the second folding part is rotatably connected to the first folding part, and a second battery and a second wireless charging coil are disposed inside the second folding part, and the second battery and the second wireless charging coil are electrically connected; and

[0009] a third folding part, wherein the third folding part is rotatably connected to the second folding part, and a third battery and a third wireless charging coil are disposed inside the third folding part, and the third battery and the third wireless charging coil are electrically connected;

[0010] When the first wireless charging coil, the second wireless charging coil and the third wireless charging coil are flattened, the first folding part, the second folding part and the third folding part can respectively cooperate with external wireless charging coils to charge the first battery, the second battery and the third battery respectively.

[0011] Compared with the prior art, the beneficial effects of this application are:

[0012] The foldable electronic device provided in the embodiment of the present application charges the first battery by arranging a first wireless charging coil inside the first foldable part, charges the second battery by arranging a second wireless charging coil inside the second foldable part, and charges the third battery by arranging a third wireless charging coil inside the third foldable part, so that the first wireless charging coil, the second wireless charging coil and the third wireless charging coil can be used to cooperate with the external wireless charging coil respectively to charge the first battery, the second battery and the third battery respectively, thereby enabling the three wireless charging coils to independently and wirelessly charge the three batteries of the foldable electronic device at the same time, which is equivalent to tripling the charging power, thereby increasing the charging speed, shortening the charging time, and further facilitating improving the charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 is a schematic structural diagram of a foldable electronic device when the first folding part, the second folding part and the third folding part disclosed in an embodiment of the present application are flattened;

[0015] Figure 2 is a structural schematic diagram of a foldable electronic device disclosed in an embodiment of the present application when the second folding part is folded on the first folding part, and the third folding part is folded on the second folding part;

[0016] Figure 3 is a structural schematic diagram of a foldable electronic device disclosed in an embodiment of the present application, in which the second foldable portion is folded on the first foldable portion, and the third foldable portion is flattened relative to the second foldable portion;

[0017] Figure 4 is a structural schematic diagram of a foldable electronic device disclosed in an embodiment of the present application, in which the second folding portion is flattened relative to the first folding portion, and the third folding portion is folded on the second folding portion;

[0018] Figure 5 is a front view of the foldable electronic device when the first folding part, the second folding part and the third folding part disclosed in the embodiment of the present application are flattened;

[0019] Figure 6 The foldable electronic device is a device that is flattened along the first folding part, the second folding part, and the third folding part disclosed in the embodiment of the present application. Figure 5 The second cross-sectional view in the AA direction;

[0020] Figure 7 The foldable electronic device is a device that is flattened along the first folding part, the second folding part, and the third folding part disclosed in the embodiment of the present application. Figure 5 The second cross-sectional view in the AA direction;

[0021] Figure 8 The second folding part disclosed in the embodiment of the present application is folded on the first folding part, and the third folding part is flattened relative to the second folding part. Figure 5 The cross-sectional view in the AA direction;

[0022] Fig. 9 The foldable electronic device is a device that is folded along the first foldable portion and the third foldable portion is folded on the second foldable portion when the second foldable portion is folded on the first foldable portion. Figure 5 The cross-sectional view in the AA direction;

[0023] Fig.10 The foldable electronic device is a device that is provided with a second foldable portion that is flattened relative to the first foldable portion and a third foldable portion that is folded on the second foldable portion. Figure 5 The cross-sectional view in the AA direction;

[0024] Fig.11 is a schematic diagram of the first internal structure of the foldable electronic device disclosed in the embodiment of the present application;

[0025] Fig.12 is a schematic diagram of a second internal structure of a foldable electronic device disclosed in an embodiment of the present application;

[0026] Fig.13 is a schematic diagram of the third internal structure of the foldable electronic device disclosed in the embodiment of the present application;

[0027] Fig.14 is a fourth schematic diagram of the internal structure of the foldable electronic device disclosed in the embodiment of the present application;

[0028] Fig.15 is a fifth schematic diagram of the internal structure of the foldable electronic device disclosed in the embodiment of the present application;

[0029] Fig.16 is a sixth schematic diagram of the internal structure of the foldable electronic device disclosed in the embodiment of the present application;

[0030] Fig.17 is a seventh schematic diagram of the internal structure of the foldable electronic device disclosed in the embodiment of the present application;

[0031] Fig.18 is a schematic diagram of the eighth internal structure of the foldable electronic device disclosed in the embodiment of the present application;

[0032] Fig.19 is a ninth schematic diagram of the internal structure of the foldable electronic device disclosed in the embodiment of the present application;

[0033] Fig. 20 This is a schematic diagram of the tenth internal structure of the foldable electronic device disclosed in the embodiment of the present application.

[0034] Description of main reference numerals

[0035] 100-foldable electronic device; 100a-display surface; 11-first folding part; 11a-first display part; 111-first battery; 112-first wireless charging coil; 113-first fast charging control chip; 12-second folding part; 12a-second display part; 121-second battery; 122-second wireless charging coil; 123-second fast charging control chip; 13-third folding part; 13a-third display part; 131-third battery; 132-third wireless charging coil; 133-third fast charging control chip; 14-first flexible conductive member; 141-first circuit; 142-second circuit; 143-first switch; 144-second switch; 15-second flexible conductive member; 151-third circuit; 152-fourth circuit; 153-third switch; 154-fourth switch; 16-charging port; 17-charging control chip; 18-motherboard load. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the exemplary embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the exemplary embodiments described are only part of the embodiments of the present application, not all of the embodiments. That is, the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.

[0037] It should be noted that the brief description of terms in this application is only for the convenience of understanding the implementation methods described below, and is not intended to limit the implementation methods of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the technical field of this application. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application.

[0038] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] The terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first folding portion may be referred to as a second folding portion, and similarly, a second folding portion may be referred to as a first folding portion. Both the first folding portion and the second folding portion are folding portions, but they are not the same folding portion.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the description of the present application, it should be noted that the singular forms of "a", "an" and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the existence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the existence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0043] In addition, the term "and / or" used in this specification includes any and all combinations of the relevant listed items. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. That is, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0044] With the development of science and technology, various electronic devices appear in people's daily lives. People can use electronic devices for work, entertainment, study, etc. When the electronic devices are low on power, they need to be charged.

[0045] Normally, one battery is sufficient in an electronic device, but as the physical form of electronic devices changes, most manufacturers have found it more cost-effective to use multiple batteries, and it is becoming more and more common to have multiple batteries to power electronic devices. For example, in a foldable phone, when it is open, the phone has a larger display screen, and its display screen size can be similar to that of a tablet, so that the corresponding interface content can be displayed through the larger display screen; in the folded state, the phone is the size of an ordinary phone, which is easy to carry.

[0046] With the popularity of wireless charging, more and more foldable electronic devices support wireless charging functions, and wireless charging methods are becoming more and more popular. By installing a wireless charging coil in a foldable electronic device, the foldable electronic device can be wirelessly charged using the wireless charging coil.

[0047] However, the researchers of this application found that in the foldable electronic devices in the related technology, there is usually only one wireless charging coil inside, and no matter in the folded state or the unfolded state, only one wireless charging coil is working. In addition, the conversion efficiency of wireless charging is low, which causes the wireless charging coil to heat up seriously, and more energy is dissipated in the form of heat, resulting in a relatively slow charging speed of the foldable electronic device, and then the charging efficiency of the foldable electronic device is relatively low.

[0048] In view of this, an embodiment of the present application provides a foldable electronic device that can increase the charging speed to improve the charging efficiency.

[0049] The following will be combined with the drawings in some embodiments of the present application to clearly and completely describe the technical solutions in some embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0050] See also Figure 1 , Figure 1 It is shown that the foldable electronic device provided in the embodiment of the present application is a smartphone, but it can be understood that the drawings of the present application only illustrate the foldable electronic device 100 as a smartphone as an example, and do not limit the foldable electronic device 100 of the present application to only a smartphone.

[0051] In other implementations of the present application, the foldable electronic device 100 may also be a laptop computer, a tablet computer, a television, a smart wearable device (such as a smart watch, a smart wristband, smart glasses, ear phones, etc.), a personal digital assistant (PDA), an e-book reader, or other foldable electronic products with display functions, and the present application does not make any specific limitations on this.

[0052] like Figures 1 to 4 , Figure 1 An exemplary foldable electronic device in a flattened state provided by an embodiment of the present application is shown. Figure 2 An exemplary foldable electronic device in a first folding state provided by an embodiment of the present application is shown. Figure 3 An exemplary foldable electronic device in a second folding state provided by an embodiment of the present application is shown. Figure 4 An exemplary foldable electronic device in a third folding state provided by an embodiment of the present application is shown.

[0053] The foldable electronic device 100 provided in the embodiment of the present application can be folded, so that it can be switched between a flattened state and a folded state.

[0054] Specifically, the foldable electronic device 100 provided in the embodiment of the present application includes a first folding part 11, a second folding part 12 and a third folding part 13, wherein the second folding part 12 is rotatably connected to the first folding part 11 so that the second folding part 12 and the first folding part 11 can be unfolded or folded with each other, and the third folding part 13 is rotatably connected to the second folding part 12 so that the third folding part 13 and the second folding part 12 can be unfolded or folded with each other, thereby enabling the foldable electronic device 100 to switch between a flattened state and a folded state.

[0055] Among them, Figure 1 As shown, the above-mentioned flattened state is configured as: the second folding part 12 is flattened relative to the first folding part 11, and the third folding part 13 is in a state when it is flattened relative to the second folding part 12. At this time, the first folding part 11, the second folding part 12 and the third folding part 13 can be connected and arranged in sequence along a preset direction.

[0056] The above-mentioned folding state may include at least a first folding state, a second folding state and a third folding state, wherein Figure 2 As shown, the first folding state is configured as a state in which the second folding portion 12 is folded on the first folding portion 11, and the third folding portion 13 is folded on the second folding portion 12, as shown in FIG. Figure 3 As shown, the second folding state is configured as a state in which the second folding portion 12 is folded on the first folding portion 11, and the third folding portion 13 is flattened relative to the second folding portion 12, as shown in FIG. Figure 4 As shown, the third folded state is configured as a state in which the second folded portion 12 is flattened relative to the first folded portion, and the third folded portion 13 is folded on the second folded portion 12 .

[0057] It can be understood that in other embodiments of the present application, the foldable electronic device 100 may also include a fourth folding part, which is rotatably connected to the third folding part 13, or the foldable electronic device 100 may also include a fifth folding part, which is rotatably connected to the fourth folding part, or the foldable electronic device 100 may also include a sixth folding part, which is rotatably connected to the fifth folding part, and so on.

[0058] Optionally, the first folding portion 11 and the second folding portion 12 may be rotatably connected via a first rotating shaft, and the second folding portion 12 and the third folding portion 13 may be rotatably connected via a second rotating shaft.

[0059] like Figures 1 to 4As shown, the foldable electronic device 100 in the present application has a display surface 100a, and the display surface 100a is used to display corresponding interface content. The display surface 100a includes a first display portion 11a arranged on the first folding portion 11, a second display portion 12a arranged on the second folding portion 12, and a third display portion 13a arranged on the third folding portion 13.

[0060] Optionally, the first folding portion 11 and the second folding portion 12 are folded in an inner folding manner, that is, when the second folding portion 12 is folded on the first folding portion 11, the first display portion 11a and the second display portion 12a are located between the first folding portion 11 and the second folding portion 12; the second folding portion 12 and the third folding portion 13 are folded in an outer folding manner, that is, when the third folding portion 13 is folded on the second folding portion 12, the second folding portion 12 and the third folding portion 13 are located between the second display portion 12a and the third display portion 13a.

[0061] In the present application, a battery and a wireless charging coil are disposed inside each folding part.

[0062] For example, Figure 5 As shown, the first folding part 11 provided in the embodiment of the present application is provided with a first battery 111 and a first wireless charging coil 112 electrically connected to the first battery 111, and the first wireless charging coil 112 is used to charge the first battery 111, the second folding part 12 is provided with a second battery 121 and a second wireless charging coil 122 electrically connected to the first battery 111, and the second wireless charging coil 122 is used to charge the second battery 121, and the third folding part 13 is provided with a third battery 131 and a third wireless charging coil 132 electrically connected to the first battery 111, and the third wireless charging coil 132 is used to charge the third battery 131.

[0063] It can be seen that the present application can utilize the first wireless charging coil 112, the second wireless charging coil 122 and the third wireless charging coil 132 to cooperate with the external wireless charging coil respectively to charge the first battery 111, the second battery 121 and the third battery 131 respectively, so that the three wireless charging coils can simultaneously and independently wirelessly charge the three batteries of the foldable electronic device 100, which is equivalent to three times the charging power, and can achieve a higher superimposed charging power, thereby increasing the charging speed of the foldable electronic device 100, shortening the charging time of the foldable electronic device 100, and further facilitating improving the charging efficiency of the foldable electronic device 100.

[0064] Moreover, compared with the method of charging three batteries with one wireless charging coil, the present application can make each wireless charging coil generate less heat and provide a better charging experience.

[0065] To facilitate the description of the positions of various components in the foldable electronic device 100, the embodiment of the present application exemplarily establishes a three-dimensional coordinate system based on the foldable electronic device 100 being in a flattened state, such as Figure 1 As shown, the x-axis direction is the length direction of the foldable electronic device 100 , the y-axis direction is the width direction of the foldable electronic device 100 , and the z-axis direction is the thickness direction of the foldable electronic device 100 .

[0066] In some embodiments, the first battery 111 and the first wireless charging coil 112 are arranged along the thickness direction of the foldable electronic device 100, the second battery 121 and the second wireless charging coil are arranged along the thickness direction of the foldable electronic device 100, and the third battery 131 and the third wireless charging coil 132 are arranged along the thickness direction of the foldable electronic device 100.

[0067] An exemplary example is Figure 6 As shown, the first wireless charging coil 112 is located on the side of the first battery 111 facing the first display portion 11a, the second wireless charging coil 122 is located on the side of the second battery 121 facing the second display portion 12a, and the third wireless charging coil 132 is located on the side of the third battery 131 facing the third display portion 13a.

[0068] Another exemplary example is Figure 7 As shown, the first wireless charging coil 112 is arranged on the side of the first battery 111 facing away from the first display portion 11a, the second wireless charging coil 122 is arranged on the side of the second battery 121 facing away from the second display portion 12a, and the third wireless charging coil 132 is arranged on the side of the third battery 131 facing away from the third display portion 13a.

[0069] If the first wireless charging coil 112 is located on the side of the first battery 111 facing the first display portion 11a, the second wireless charging coil 122 is located on the side of the second battery 121 facing the second display portion 12a, and the third wireless charging coil 132 is located on the side of the third battery 131 facing the third display portion 13a, then during wireless charging, the external wireless charging coil needs to fit the first display portion 11a, the second display portion 12a and the third display portion 13a to cooperate with the first wireless charging coil 112, the second wireless charging coil 122 and the third wireless charging coil 132, which may easily scratch the first display portion 11a, the second display portion 12a and the third display portion 13a, thereby affecting the display.

[0070] Therefore, the present application preferably arranges the first wireless charging coil 112 on the side of the first battery 111 facing away from the first display part 11a, arranges the second wireless charging coil 122 on the side of the second battery 121 facing away from the second display part 12a, and arranges the third wireless charging coil 132 on the side of the third battery 131 facing away from the third display part 13a, so that during wireless charging, the external wireless charging coil can be attached to the back of the foldable electronic device 100 to cooperate with the first wireless charging coil 112, the second wireless charging coil 122, and the third wireless charging coil 132 without being attached to the first display part 11a, the second display part 12a, and the third display part 13a, so as to avoid scratching the first display part 11a, the second display part 12a, and the third display part 13a.

[0071] An exemplary example is Figure 7 As shown, when the second folding portion 12 is flattened relative to the first folding portion 11, and the third folding portion 13 is flattened relative to the second folding portion 12, the first wireless charging coil 112, the second wireless charging coil 122 and the third wireless charging coil 132 can charge the first battery 111, the second battery 121 and the third battery 131 respectively.

[0072] Another exemplary example is Figure 8 As shown, when the first folding portion 11, the second folding portion 12 and the third folding portion 13 are flattened, that is, the second folding portion 12 is flattened relative to the first folding portion 11, and the third folding portion 13 is flattened relative to the second folding portion 12, the first wireless charging coil 112, the second wireless charging coil 122 and the third wireless charging coil 132 can charge the first battery 111, the second battery 121 and the third battery 131 respectively.

[0073] If the second folding portion 12 is flattened relative to the first folding portion 11 and the third folding portion 13 is flattened relative to the second folding portion 12, the first battery 111, the second battery 121 and the third battery 131 are charged respectively by the first wireless charging coil 112, the second wireless charging coil 122 and the third wireless charging coil 132, the external charging coil cooperating with the second wireless charging coil 122 needs to be placed on the second folding portion 12, which will apply force to the display screens of the second folding portion 12 and the first folding portion 11, thereby easily causing damage to the display screens of the second folding portion 12 and the first folding portion 11.

[0074] Therefore, the present application preferably utilizes the first wireless charging coil 112, the second wireless charging coil 122 and the third wireless charging coil 132 to charge the first battery 111, the second battery 121 and the third battery 131 respectively when the second folding part 12 is flattened relative to the first folding part 11 and the third folding part 13 is flattened relative to the second folding part 12. In this way, the three wireless charging coils can simultaneously and independently charge the three batteries of the foldable electronic device wirelessly, and there is no need to place the external charging coil that cooperates with the second wireless charging coil 122 on the second folding part 12, thereby avoiding damage to the display screens of the second folding part 12 and the first folding part 11.

[0075] like Fig. 9 and Fig.10 As shown, when the third folding portion 13 is folded on the second folding portion 12, the first folding portion 11 and the second folding portion 12 can be folded together (as shown in FIG. Fig. 9 ), or they can be flattened against each other (as shown in Fig.10 As shown), the second wireless charging coil 122 and the third wireless charging coil 132 are located between the second battery 121 and the third battery 131, and the second battery 121 and the third battery 131 can be charged and discharged with each other through the second wireless charging coil 122 and the third wireless charging coil 132.

[0076] In this way, on the one hand, when there is a difference in the power levels of the second battery 121 and the third battery 131, the second battery 121 and the third battery 131 can realize wireless mutual charging and discharging through the second wireless charging coil 122 and the third wireless charging coil 132, that is, the one with higher power among the second battery 121 and the third battery 131 can charge the other with lower power through the second wireless charging coil 122 and the third wireless charging coil 132. At this time, the battery with higher power is in a discharging state, and the battery with lower power is in a charging state. One of the second wireless charging coil 122 and the third wireless charging coil 132 is in an energy output state, and the other is in an energy receiving state, thereby realizing the effect of charging the battery with lower power from the battery with higher power through the charging path of the second wireless charging coil 122 and the third wireless charging coil 132, thereby realizing power balance.

[0077] Exemplarily, if the battery power of the second battery 121 is greater than the battery power of the third battery 131, the second battery 121 may be in a discharging state, the third battery 131 may be in a charging state, the working state of the second wireless charging coil 122 may be in an energy output state, and the working state of the third wireless charging coil 132 may be in an energy receiving state, thereby achieving an effect of charging the third battery 131 from the second battery 121 through the charging path of the second wireless charging coil 122 and the third wireless charging coil 132, so that the power of the second battery 121 and the third battery 131 is balanced.

[0078] On the other hand, when the temperatures of the first battery 111, the second battery 121, and the third battery 131 are too low and do not meet the fast charging temperature conditions, the second battery 121 and the third battery 131 can realize wireless mutual charging and discharging through the second wireless charging coil 122 and the third wireless charging coil 132, and utilize the second wireless charging coil 122 and the third wireless charging coil 132 to generate heat to quickly heat the second battery 121 and the third battery 131. In this process, heat can be transferred to the first battery 111 to heat the first battery 111, so that the first battery 111, the second battery 121, and the third battery 131 reach the fast charging temperature, enter fast charging as soon as possible, and increase the charging rate.

[0079] like Fig.11 As shown, a first fast charging control chip 113 is also provided inside the first folding part, and the first fast charging control chip 113 is electrically connected between the first battery 111 and the first wireless charging coil 112. In this way, the first fast charging control chip 113 can be utilized so that the first battery 111 can be wirelessly fast charged through the first wireless charging coil 112, thereby improving the wireless charging efficiency of the first battery 111.

[0080] A second fast charging control chip 123 is also provided inside the second folding part. The second fast charging control chip 123 is electrically connected between the second battery 121 and the second wireless charging coil 122. In this way, the second fast charging control chip 123 can be utilized so that the second battery 121 can be wirelessly fast charged through the second wireless charging coil 122, thereby improving the wireless charging efficiency of the second battery 121.

[0081] A third fast charging control chip 133 is also provided inside the third folding part. The third fast charging control chip 133 is electrically connected between the third battery 131 and the third wireless charging coil 132. In this way, the third fast charging control chip 133 can be utilized so that the third battery 131 can be wirelessly fast charged through the third wireless charging coil 132, thereby improving the wireless charging efficiency of the third battery 131.

[0082] like Fig.12As shown, the foldable electronic device provided in the embodiment of the present application also includes a first flexible conductive member 14 and a second flexible conductive member 15. The first flexible conductive member 14 is electrically connected to the first battery 111, the second battery 121, the first wireless charging coil 112 and the second wireless charging coil 122, respectively. The second flexible conductive member 15 is electrically connected to the second battery 121, the third battery 131, the second wireless charging coil 122 and the third wireless charging coil 132, respectively.

[0083] With such arrangement, the first battery, the second battery and the third battery can be wirelessly charged at the same time by using one of the first wireless charging coil 112, the second wireless charging coil 122 and the third wireless charging coil 132, especially when the third folding part 13 is folded on the second folding part 12, the second wireless charging coil 122 and the third wireless charging coil 132 are located between the second battery 121 and the third battery 131, and the second wireless charging coil 122 and the third wireless charging coil 132 cannot cooperate with the external wireless charging coil, while the first wireless charging coil 112 can still cooperate with the external wireless charging coil, so as to wirelessly charge the first battery 111, the second battery 121 and the third battery 131 through the cooperation of the first wireless charging coil 112 and the external wireless charging coil, thereby making the wireless charging method more flexible.

[0084] In some embodiments, Fig.13 As shown, the first flexible conductive member 14 is passed through the first rotating shaft connected between the first folding part 11 and the second folding part 12, and the first flexible conductive member 14 is electrically connected to the first fast charging control chip 113, the second fast charging control chip 123, the first wireless charging coil 112 and the second wireless charging coil 122 respectively, and the second flexible conductive member 15 is passed through the second rotating shaft connected between the second folding part 12 and the third folding part 13, and the second flexible conductive member 15 is electrically connected to the second fast charging control chip 123, the third fast charging control chip 133, the second wireless charging coil 122 and the third wireless charging coil 132 respectively.

[0085] With such an arrangement, when the three wireless charging coils are used to wirelessly charge the three batteries independently at the same time, the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 can be used to make the first battery 111, the second battery 121 and the third battery 131 respectively realize wireless fast charging through the first wireless charging coil 112, the second wireless charging coil 122 and the third wireless charging coil 132; and when the first battery 111, the second battery 121 and the third battery 131 are charged by one of the first wireless charging coil 112, the second wireless charging coil 122 and the third wireless charging coil 132, the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 can be used to make the first battery 111, the second battery 121 and the third battery 131 realize wireless fast charging through the first wireless charging coil 112, thereby facilitating improving the wireless charging efficiency.

[0086] In some embodiments, Fig.14 As shown, one of the first folding part, the second folding part and the third folding part is provided with a charging port 16, such as a Universal Serial Bus (USB) interface, and the charging port 16 is respectively connected to the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133.

[0087] With the above design, when the external power cord is inserted into the charging port 16, the external current enters from the charging port 16, first reaches the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 respectively, and then reaches the first battery 111, the second battery 121 and the third battery 131 respectively. Therefore, under the action of the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133, wired fast charging of the first battery 111, the second battery 121 and the third battery 131 can be achieved, which is beneficial to improve the charging efficiency.

[0088] In the above scheme, since the wireless fast charging and wired fast charging of each battery share the same fast charging control chip, specifically, the wireless fast charging and wired fast charging of the first battery 111 share the first fast charging control chip 113, the wireless fast charging and wired fast charging of the second battery 121 share the second fast charging control chip 123, and the wireless fast charging and wired fast charging of the third battery 131 share the third fast charging control chip 133, the use of fast charging control chips can be reduced, the charging circuit inside the foldable electronic device 100 is simplified, and costs are saved.

[0089] An exemplary example is Fig.14As shown, when the charging port 16 is disposed on the first folding portion 11, the charging port 16 is electrically connected to the first fast charging control chip 113, and the charging port 16 is electrically connected to the second fast charging control chip 123 through the first flexible conductive member 14, and is electrically connected to the third fast charging control chip 133 through the first flexible conductive member 14 and the second flexible conductive member 15. When the external power cord is inserted into the charging port 16, the external current enters from the charging port 16, reaches the first fast charging control chip 113, and passes through the first flexible conductive member 14 to reach the second fast charging control chip 123, passes through the first flexible conductive member 14 and the second flexible conductive member 15 to reach the third fast charging control chip 133, and then reaches the first battery 111, the second battery 121 and the third battery 131 respectively, thereby under the action of the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133, the wired fast charging of the first battery 111, the second battery 121 and the third battery 131 can be realized.

[0090] Another exemplary example is Fig.15 As shown, when the charging port 16 is disposed on the second folding portion 12, the charging port 16 is electrically connected to the second fast-charging control chip 123, and the charging port 16 is electrically connected to the first fast-charging control chip 113 through the first flexible conductive member 14, and is electrically connected to the third fast-charging control chip 133 through the second flexible conductive member 15. When the external power cord is inserted into the charging port 16, the external current enters from the charging port 16, reaches the second fast-charging control chip 123, and reaches the first fast-charging control chip 113 through the first flexible conductive member 14, reaches the third fast-charging control chip 133 through the second flexible conductive member 15, and then reaches the first battery 111, the second battery 121 and the third battery 131 respectively, thereby, under the action of the first fast-charging control chip 113, the second fast-charging control chip 123 and the third fast-charging control chip 133, the wired fast charging of the first battery 111, the second battery 121 and the third battery 131 can be realized.

[0091] Another exemplary example is Fig.16As shown, when the charging port 16 is disposed on the third folding portion 13, the charging port 16 is electrically connected to the third fast-charge control chip 133, and the charging port 16 is electrically connected to the second fast-charge control chip 123 through the second flexible conductive member 15, and is electrically connected to the first fast-charge control chip 113 through the first flexible conductive member 14 and the second flexible conductive member 15. When the external power cord is inserted into the charging port 16, the external current enters from the charging port 16, reaches the third fast-charge control chip 133, and passes through the second flexible conductive member 15 to reach the second fast-charge control chip 123, passes through the second flexible conductive member 15 and the first flexible conductive member 14 to reach the first fast-charge control chip 113, and then reaches the first battery 111, the second battery 121 and the third battery 131 respectively, thereby under the action of the first fast-charge control chip 113, the second fast-charge control chip 123 and the third fast-charge control chip 133, the wired fast charging of the first battery 111, the second battery 121 and the third battery 131 can be realized.

[0092] Optionally, the first flexible conductive member 14 and the second flexible conductive member 15 can both be a through-axis flexible circuit board (Flexible line board, FPC for short).

[0093] like Fig.17 As shown, in some embodiments, the first flexible conductive member 14 is provided with a first circuit 141, a second circuit 142, a first switch 143 and a second switch 144. The first circuit 141 is electrically connected to the first battery 111, the second battery 121, the first fast charging control chip 113 and the second fast charging control chip 123, respectively. The first switch 143 is used to control the on-off of the first circuit 141. The second circuit 142 is electrically connected to the first fast charging control chip 113, the second fast charging control chip, the first wireless charging coil 112 and the second wireless charging coil 122, respectively. The second switch 144 is used to control the on-off of the second circuit 142.

[0094] The second flexible conductive member 15 is provided with a third circuit 151, a fourth circuit 152, a third switch 153 and a fourth switch 154. The third circuit 151 is electrically connected to the second battery 121, the third battery 131, the second fast charging control chip 123 and the third fast charging control chip 133 respectively. The third switch 153 is used to control the on-off of the third circuit 151. The fourth circuit 152 is electrically connected to the second fast charging control chip 123, the third fast charging control chip 133, the second wireless charging coil 122 and the third wireless charging coil 132 respectively. The fourth switch 154 is used to control the on-off of the fourth circuit 152.

[0095] One of the first folding part, the second folding part and the third folding part is provided with a charging control chip 17, which is electrically connected to the first wireless charging coil 112, the second wireless charging coil, the third wireless charging coil 132, the first battery 111, the second battery 121 and the third battery 131 respectively.

[0096] With the above design, in the early stage, when the power of the first battery 111, the second battery 121 and the third battery 131 is relatively low, the first battery 111, the second battery 121 and the third battery 131 can be charged by wireless fast charging or wired fast charging. When at least one of the first battery 111, the second battery 121 and the third battery 131 is almost fully charged, that is, when at least one of the first battery 111, the second battery 121 and the third battery 131 reaches the maximum charging voltage, the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 can be turned off and stopped running, and the first switch 143 and the third switch 143 can be turned off and stopped running. The switch 153 remains closed, and the second switch 144 and the fourth switch 154 remain closed. At this time, the charging control chip 17 can be used to charge the first battery 111, the second battery 121 and the third battery 131, so that the first battery 111, the second battery 121 and the third battery 131 enter constant voltage charging to ensure that the first battery 111, the second battery 121 and the third battery 131 can be fully charged, and at the same time, the internal polarization of the first battery 111, the second battery 121 and the third battery 131 can be avoided, so as to avoid damaging the battery performance and causing battery failure or even explosion, thereby protecting the first battery 111, the second battery 121 and the third battery 131.

[0097] In other words, by adopting the above design, the first battery 111, the second battery 121 and the third battery 131 can be charged by fast charging when the battery power is low to ensure the charging efficiency; and the first battery 111, the second battery 121 and the third battery 131 can be put into constant voltage charging when they are almost fully charged to protect the first battery 111, the second battery 121 and the third battery 131.

[0098] In some embodiments, the charging control chip 17 and the charging port 16 are disposed on the same folding portion so that the charging control chip 17 is electrically connected to the charging port 16 .

[0099] When the external power cord is inserted into the charging port 16, the second switch 144 and the fourth switch 154 are closed, and the first switch 143 and the third switch 153 are opened, then the external current entering through the charging port 16 reaches the first fast charge control chip 113, the second fast charge control chip 123 and the third fast charge control chip 133 respectively, and then reaches the first battery 111, the second battery 121 and the third battery 131 respectively, thereby realizing wired fast charging of the first battery 111, the second battery 121 and the third battery 131. ; The first fast charge control chip 113, the second fast charge control chip 123 and the third fast charge control chip 133 are turned off and stop running, the first switch 143 and the third switch 153 are closed, and the second switch 144 and the fourth switch 154 are closed, then the external current entering through the charging port 16 reaches the charging control chip 17, and then reaches the first battery 111, the second battery 121 and the third battery 131 respectively, thereby realizing wired universal charging of the first battery 111, the second battery 121 and the third battery 131.

[0100] In the above scheme, the wireless fast charging and wired general charging of the first battery 111, the second battery 121 and the third battery 131 can share the same charging port 16, which can reduce the setting of the charging port 16 and thus reduce the occupation of the internal space of the foldable electronic device 100 by the charging port 16.

[0101] An exemplary example is Fig.17 As shown, when the charging port 16 and the charging control chip 17 are arranged on the first folding part 11, the charging control chip 17 is electrically connected to the charging port 16, the first battery 111 and the first wireless charging coil 112 respectively, the charging control chip 17 is electrically connected to the second battery 121 through the first line 141, the charging control chip 17 is electrically connected to the second wireless charging coil 122 through the second line 142, the charging control chip 17 is electrically connected to the third battery 131 through the first line 141 and the third line 151, and the charging control chip 17 is electrically connected to the third wireless charging coil 132 through the second line 142 and the fourth line 152.

[0102] When the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 are turned off and stop running, and the first switch 143 and the third switch 153 are closed, and the second switch 144 and the fourth switch 154 are disconnected, the external current entering through the charging port 16 reaches the charging control chip 17, and then reaches the first battery 111, reaches the second battery 121 through the first line 141, and reaches the third battery 131 through the first line 141 and the third line 151, thereby realizing wired universal charging of the first battery 111, the second battery 121 and the third battery 131.

[0103] When the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 are turned off and stop running, and the first switch 143 and the third switch 153 are disconnected, and the second switch 144 and the fourth switch 154 are closed, the first wireless charging coil 112 is connected to the charging control chip 17, the second wireless charging coil 122 is connected to the charging control chip 17 through the second line 142, and the third wireless charging coil 132 is connected to the charging control chip 17 through the fourth line 152 and the second line 142. The external current entering through the first wireless charging coil 112, the second wireless charging coil 122 or the third wireless charging coil 132 reaches the charging control chip 17, and then reaches the first battery 111, the second battery 121 through the first line 141, and the third battery 131 through the first line 141 and the third line 151, thereby realizing wireless general charging of the first battery 111, the second battery 121 and the third battery 131.

[0104] Another exemplary example is Fig.18 As shown, when the charging port 16 and the charging control chip 17 are arranged on the second folding part 12, the charging control chip 17 is electrically connected to the charging port 16, the second battery 121 and the second wireless charging coil 122 respectively, the charging control chip 17 is electrically connected to the first battery 111 through the first line 141, the charging control chip 17 is electrically connected to the first wireless charging coil 112 through the second line 142, the charging control chip 17 is electrically connected to the third battery 131 through the third line 151, and the charging control chip 17 is electrically connected to the third wireless charging coil 132 through the fourth line 152.

[0105] When the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 are turned off and stop running, and the first switch 143 and the third switch 153 are closed, and the second switch 144 and the fourth switch 154 are disconnected, the external current entering through the charging port 16 reaches the charging control chip 17, and then reaches the second battery 121, reaches the first battery 111 through the first line 141, and reaches the third battery 131 through the third line 151, thereby realizing wired universal charging of the first battery 111, the second battery 121 and the third battery 131.

[0106] When the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 are turned off and stop running, and the first switch 143 and the third switch 153 are disconnected, and the second switch 144 and the fourth switch 154 are closed, the second wireless charging coil 122 is connected to the charging control chip 17, the first wireless charging coil 112 is connected to the charging control chip 17 through the second line 142, and the third wireless charging coil 132 is connected to the charging control chip 17 through the fourth line 152. The external current entering through the first wireless charging coil 112, the second wireless charging coil 122 or the third wireless charging coil 132 reaches the charging control chip 17, and then reaches the second battery 121, the first battery 111 through the first line 141, and the third battery 131 through the third line 151, thereby realizing wireless general charging of the first battery 111, the second battery 121 and the third battery 131.

[0107] Another exemplary example is Fig.19 As shown, when the charging port 16 and the charging control chip 17 are arranged on the third folding part 13, the charging control chip 17 is electrically connected to the charging port 16, the third battery 131 and the third wireless charging coil 132 respectively, the charging control chip 17 is electrically connected to the second battery 121 through the third line 151, the charging control chip 17 is electrically connected to the second wireless charging coil 122 through the fourth line 152, the charging control chip 17 is electrically connected to the first battery 111 through the third line 151 and the first line 141, and the charging control chip 17 is electrically connected to the first wireless charging coil 112 through the fourth line 152 and the second line 142.

[0108] When the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 are turned off and stop running, and the first switch 143 and the third switch 153 are closed, and the second switch 144 and the fourth switch 154 are disconnected, the external current entering through the charging port 16 reaches the charging control chip 17, and then reaches the third battery 131 respectively, reaches the second battery 121 through the third line 151, and reaches the first battery 111 through the third line 151 and the first line 141, thereby realizing wired universal charging of the first battery 111, the second battery 121 and the third battery 131.

[0109] When the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 are turned off and stop running, and the first switch 143 and the third switch 153 are disconnected, and the second switch 144 and the fourth switch 154 are closed, the third wireless charging coil 132 is connected to the charging control chip 17, the second wireless charging coil 122 is connected to the charging control chip 17 through the fourth line 152, and the first wireless charging coil 112 is connected to the charging control chip 17 through the fourth line 152 and the second line 142. The external current entering through the first wireless charging coil 112, the second wireless charging coil 122 or the third wireless charging coil 132 reaches the charging control chip 17, and then reaches the third battery 131 respectively, reaches the second battery 121 through the third line 151, and reaches the first battery 111 through the third line 151 and the first line 141, thereby realizing wireless general charging of the first battery 111, the second battery 121 and the third battery 131.

[0110] like Figures 17 to 19 As shown, when the first wireless charging coil 112, the second wireless charging coil 122 and the third wireless charging coil 132 respectively charge the first battery 111, the second battery 121 and the third battery 131 at the same time, for example, when the first folding part 11, the second folding part 12 and the third folding part 13 are flattened, the first switch 143, the second switch 144, the third switch 153 and the fourth switch 154 are disconnected, then the first wireless charging coil 112 can charge the first battery 111 through the first fast charging control chip 113, the second wireless charging coil 122 can charge the second battery 121 through the second fast charging control chip 123, and the third wireless charging coil 132 can charge the third battery 131 through the third fast charging control chip 133, thereby realizing wireless fast charging of the first battery 111, the second battery 121 and the third battery 131.

[0111] When at least one of the first battery 111, the second battery 121, and the third battery 131 is almost fully charged, that is, when at least one of the first battery 111, the second battery 121, and the third battery 131 reaches the maximum charging voltage, the first fast charging control chip 113, the second fast charging control chip 123, and the third fast charging control chip 133 are turned off and stop running, the first switch 143 and the third switch 153 are closed, the second switch 144 and the fourth switch 154 are closed, and the first wireless charging coil 112, the second wireless charging coil 122, and the third wireless charging coil 132 are closed. The first battery 111, the second battery 121 and the third battery 131 are charged through the charging control chip 17, so that the first battery 111, the second battery 121 and the third battery 131 can enter constant voltage charging to ensure that the first battery 111, the second battery 121 and the third battery 131 can be fully charged, and at the same time, the internal polarization of the first battery 111, the second battery 121 and the third battery 131 can be avoided, so as to avoid damaging the battery performance and causing battery failure or even explosion, thereby protecting the first battery 111, the second battery 121 and the third battery 131.

[0112] When the third folding part is folded on the second folding part, the first switch 143 and the third switch 153 are closed, the second switch 144 and the fourth switch 154 are opened, the first wireless charging coil 112 charges the first battery 111 through the first fast charging control chip 113, the first wireless charging coil 112 charges the second battery 121 through the second fast charging control chip 123, and the first wireless charging coil 112 charges the third battery 131 through the third fast charging control chip 133, thereby realizing wireless fast charging of the first battery 111, the second battery 121 and the third battery 131.

[0113] When at least one of the first battery 111, the second battery 121 and the third battery 131 is almost fully charged, that is, when at least one of the first battery 111, the second battery 121 and the third battery 131 reaches the maximum charging voltage, the first fast charging control chip 113, the second fast charging control chip 123 and the third fast charging control chip 133 are turned off and stop running, the first switch 143 and the third switch 153 are closed, the second switch 144 and the fourth switch 154 are closed, and the first wireless charging coil 112 is connected to the charging control chip 17 through the charging control chip 17. The first battery 111, the second battery 121 and the third battery 131 are charged, and the first battery 111, the second battery 121 and the third battery 131 are allowed to enter constant voltage charging to ensure that the first battery 111, the second battery 121 and the third battery 131 can be fully charged, and at the same time, the internal polarization of the first battery 111, the second battery 121 and the third battery 131 can be avoided, so as to avoid damaging the battery performance and causing battery failure or even explosion, thereby protecting the first battery 111, the second battery 121 and the third battery 131.

[0114] Among them, the above-mentioned “at least one of the first battery 111, the second battery 121 and the third battery 131 reaches the maximum charging voltage” can mean that one of the first battery 111, the second battery 121 and the third battery 131 reaches the maximum charging voltage, or two of the first battery 111, the second battery 121 and the third battery 131 reach the maximum charging voltage, or the first battery 111, the second battery 121 and the third battery 131 all reach the maximum charging voltage.

[0115] like Fig. 20 As shown, in some embodiments, the foldable electronic device also includes a mainboard load 18, which can be set in the first folding part 11, the second folding part 12 or the third folding part 13. The mainboard load 18 is electrically connected to the first battery 111, the second battery 121, the third battery 131 and the charging control chip respectively. When the first switch 143 and the third switch 153 are closed, the first battery 111, the second battery 121 and the third battery 131 are connected in parallel to power the mainboard load 18.

[0116] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0117] In addition, the above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the content of this specification should not be understood as limiting the present application, and the protection scope of the present application shall be subject to the attached claims.

Claims

1. A foldable electronic device, characterized in that: The foldable electronic device comprises: a first folding portion, wherein a first battery and a first wireless charging coil are disposed inside the first folding portion, the first battery and the first wireless charging coil are electrically connected, and the first wireless charging coil is used to charge the first battery; a second folding part, the second folding part being rotatably connected to the first folding part, and a second battery and a second wireless charging coil being arranged inside the second folding part, the second battery and the second wireless charging coil being electrically connected, and the second wireless charging coil being used to charge the second battery; and A third folding part, wherein the third folding part is rotatably connected to the second folding part, and a third battery and a third wireless charging coil are arranged inside the third folding part, the third battery and the third wireless charging coil are electrically connected, and the third wireless charging coil is used to charge the third battery.

2. The foldable electronic device according to claim 1, characterized in that: When the first folding portion, the second folding portion, and the third folding portion are flattened, the first wireless charging coil, the second wireless charging coil, and the third wireless charging coil can charge the first battery, the second battery, and the third battery, respectively.

3. The foldable electronic device according to claim 1, characterized in that: When the third folding part is folded on the second folding part, the second wireless charging coil and the third wireless charging coil are located between the second battery and the third battery, and the second battery and the third battery can be charged and discharged with each other through the second wireless charging coil and the third wireless charging coil.

4. The foldable electronic device according to claim 1, characterized in that: The electronic device has a display surface, the display surface including a first display portion provided on the first folding portion, a second display portion provided on the second folding portion, and a third display portion provided on the third folding portion; The first wireless charging coil is located on a side of the first battery facing away from the first display part, the second wireless charging coil is located on a side of the second battery facing away from the second display part, and the third wireless charging coil is located on a side of the third battery facing away from the third display part.

5. The foldable electronic device according to claim 1, characterized in that: A first fast charging control chip is also disposed inside the first folding portion, and the first fast charging control chip is electrically connected between the first battery and the first wireless charging coil; A second fast charging control chip is also disposed inside the second folding portion, and the second fast charging control chip is electrically connected between the second battery and the second wireless charging coil; A third fast charging control chip is also disposed inside the third folding portion, and the third fast charging control chip is electrically connected between the third battery and the third wireless charging coil.

6. The foldable electronic device according to claim 1, characterized in that: The foldable electronic device also includes a first flexible conductive member and a second flexible conductive member, the first flexible conductive member is electrically connected to the first battery, the second battery, the first wireless charging coil and the second wireless charging coil respectively, and the second flexible conductive member is electrically connected to the second battery, the third battery, the second wireless charging coil and the third wireless charging coil respectively.

7. The foldable electronic device according to claim 6, characterized in that: When the third folding part is folded on the second folding part, the second wireless charging coil and the third wireless charging coil are located between the second battery and the third battery, and the first wireless charging coil is used to charge the first battery, the second battery and the third battery.

8. The foldable electronic device according to claim 6, characterized in that: A first fast charging control chip is also disposed inside the first folding portion, and the first fast charging control chip is electrically connected to the first battery, the first wireless charging coil and the first flexible conductive member respectively; A second fast charging control chip is also disposed inside the second folding portion, and the second fast charging control chip is electrically connected to the second battery, the second wireless charging coil, the first flexible conductive member, and the second flexible conductive member respectively; A third fast charging control chip is also disposed inside the third folding portion, and the third fast charging control chip is electrically connected to the third battery, the third wireless charging coil and the second flexible conductive member respectively.

9. The foldable electronic device according to claim 8, characterized in that: One of the first folding part, the second folding part and the third folding part is provided with a charging port, and the charging port is electrically connected to the first fast charging control chip, the second fast charging control chip and the third fast charging control chip respectively.

10. The foldable electronic device according to claim 8, characterized in that: The first flexible conductive member is provided with a first circuit, a second circuit, a first switch and a second switch, the first circuit is electrically connected to the first battery, the second battery, the first fast charging control chip and the second fast charging control chip respectively, the first switch is used to control the on and off of the first circuit, the second circuit is electrically connected to the first fast charging control chip, the second fast charging control chip, the first wireless charging coil and the second wireless charging coil respectively, and the second switch is used to control the on and off of the second circuit; The second flexible conductive member is provided with a third circuit, a fourth circuit, a third switch and a fourth switch, the third circuit is electrically connected to the second battery, the third battery, the second fast charging control chip and the third fast charging control chip respectively, the third switch is used to control the on and off of the third circuit, the fourth circuit is electrically connected to the second fast charging control chip, the third fast charging control chip, the second wireless charging coil and the third wireless charging coil respectively, and the fourth switch is used to control the on and off of the fourth circuit; One of the first folding part, the second folding part and the third folding part is provided with a charging control chip, and the charging control chip is electrically connected to the first wireless charging coil, the second wireless charging coil, the third wireless charging coil, the first battery, the second battery and the third battery respectively.

11. The foldable electronic device according to claim 10, characterized in that: When the first wireless charging coil, the second wireless charging coil and the third wireless charging coil charge the first battery, the second battery and the third battery respectively at the same time, the first switch, the second switch, the third switch and the fourth switch are turned off; When at least one of the first battery, the second battery and the third battery reaches the maximum charging voltage, the first fast charging control chip, the second fast charging control chip and the third fast charging control chip are turned off, the first switch and the third switch are closed, the second switch and the fourth switch are closed, and one of the first wireless charging coil, the second wireless charging coil and the third wireless charging coil charges the first battery, the second battery and the third battery through the charging control chip.

12. The foldable electronic device according to claim 10, characterized in that: When the third folding part is folded on the second folding part, the first switch and the third switch are opened, the second switch and the fourth switch are closed, and the first wireless charging coil charges the first battery through the first fast charging control chip, charges the second battery through the second fast charging control chip, and charges the third battery through the second fast charging control chip; When at least one of the first battery, the second battery and the third battery reaches the maximum charging voltage, the first fast charging control chip, the second fast charging control chip and the third fast charging control chip are turned off, the first switch and the third switch are closed, the second switch and the fourth switch are closed, and the first wireless charging coil charges the first battery, the second battery and the third battery through the charging control chip.

13. The foldable electronic device according to claim 10, characterized in that: A charging port is provided on one of the first folding portion, the second folding portion and the third folding portion. The charging port and the charging control chip are provided on the same folding portion, and the charging port is electrically connected to the charging control chip.

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