Electronic device

Abstract

This application discloses an electronic device, belonging to the field of electronic technology. The electronic device includes: a first housing including a first positive current-carrying region; a second housing rotatably connected to the first housing, the second housing including a second positive current-carrying region electrically connected to the first positive current-carrying region; a first battery disposed within the first housing, the positive terminal of the first battery electrically connected to the first positive current-carrying region; a second battery disposed within the second housing, the capacity of the second battery being less than the capacity of the first battery; a main circuit board disposed within the second housing, the main circuit board electrically connected to the second positive current-carrying region, a first charging / discharging circuit being formed between the main circuit board and the first battery, and a second charging / discharging circuit being formed between the main circuit board and the second battery, the impedance of the first charging / discharging circuit being less than the impedance of the second charging / discharging circuit, and the impedance of the first charging / discharging circuit corresponding at least to one of the dimensions of the first positive current-carrying region and the second positive current-carrying region.

Description

Technical Field

[0001] This application belongs to the field of electronic technology, specifically relating to an electronic device. Background Technology

[0002] With the rapid development of electronic technology, mobile phones, tablets, and other electronic devices are becoming increasingly popular and are gradually becoming indispensable tools in people's daily lives. To improve the battery life of these devices, multiple batteries can be installed for power. However, due to space constraints, these batteries may differ in size, resulting in variations in capacity. This capacity difference can lead to significant differences in charge / discharge rates, potentially causing some batteries to be damaged due to excessive charging / discharging current.

[0003] Currently, to prevent damage to batteries in electronic devices due to excessive current during charging and discharging, current-limiting modules are typically installed within the devices. These modules include various peripheral components such as sampling resistors, MOSFETs, and detection chips, which limit the current in the charging and discharging paths of each battery. However, the addition of current-limiting modules inevitably occupies internal installation space, thus increasing the size of the electronic device. Summary of the Invention

[0004] This application aims to provide an electronic device that at least solves the problem of increased size of the electronic device due to the need to avoid damage caused by excessive current between batteries.

[0005] This application provides an electronic device, including: A first housing, the first housing including a first positive current-passing region; The second housing is rotatably connected to the first housing, and the second housing includes a second positive current-carrying region, which is electrically connected to the first positive current-carrying region. A first battery is disposed inside the first housing, and the positive terminal of the first battery is electrically connected to the first positive terminal overcurrent region. A second battery is disposed inside the second housing, and the capacity of the second battery is less than that of the first battery. A main circuit board is disposed within the second housing. The main circuit board is electrically connected to the second positive electrode overcurrent region. A first charging and discharging circuit is formed between the main circuit board and the first battery, and a second charging and discharging circuit is formed between the main circuit board and the second battery. The impedance of the first charging and discharging circuit is less than the impedance of the second charging and discharging circuit, and the impedance of the first charging and discharging circuit corresponds to at least one of the dimensions of the first positive electrode overcurrent region and the second positive electrode overcurrent region.

[0006] In the embodiments of this application, since the impedance of the first charging and discharging circuit is less than that of the second charging and discharging circuit, the difference in charging and discharging rates between the two charging and discharging circuits can be reduced, thereby reducing the risk of excessive charging and discharging current in the first and second batteries. In addition, the impedance of the first charging and discharging circuit corresponds to at least one of the dimensions of the first positive electrode overcurrent region and the second positive electrode overcurrent region. Therefore, by adjusting at least one of the dimensions of the first positive electrode overcurrent region and the second positive electrode overcurrent region, the impedance of the first positive electrode overcurrent region can be reduced, making the difference in charging and discharging rates between the two charging and discharging circuits adjustable. This achieves current balance between the first and second charging and discharging circuits, avoiding excessive current in each charging and discharging circuit. Compared to installing a current limiting module in the electronic device to limit the charging and discharging current of the battery, this method does not require occupying the internal installation space of the electronic device, which is beneficial for reducing the size of the electronic device.

[0007] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0008] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of an embodiment of the electronic device provided in this application; Figure 2 This is a circuit diagram of an embodiment of the electronic device provided in this application; Figure 3 This is another structural schematic diagram of an embodiment of the electronic device provided in this application; Figure 4 This is another structural schematic diagram of an embodiment of the electronic device provided in this application; Figure 5 This is another structural schematic diagram of an embodiment of the electronic device provided in this application. Detailed Implementation

[0009] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0010] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0011] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0012] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0013] The following is combined Figures 1 to 5 This application describes an electronic device according to an embodiment of the present application.

[0014] Please see Figure 1 This is a schematic diagram of the structure of the electronic device provided in an embodiment of this application. Figure 1 As shown, the electronic device includes: A first housing 10, the first housing 10 including a first positive current-passing region 11; The second housing 20 is rotatably connected to the first housing 10, and the second housing 20 includes a second positive current-carrying region 21, which is electrically connected to the first positive current-carrying region 11. The first battery 30 is disposed inside the first housing 10, and the positive terminal of the first battery 30 is electrically connected to the first positive terminal overcurrent region 11. The second battery 40 is disposed inside the second housing 20, and the capacity of the second battery 40 is less than that of the first battery 30. The main circuit board 50 is disposed inside the second housing 20. The main circuit board 50 is electrically connected to the second positive electrode overcurrent region 21. A first charging and discharging circuit is formed between the main circuit board 50 and the first battery 30, and a second charging and discharging circuit is formed between the main circuit board 50 and the second battery 40. The impedance of the first charging and discharging circuit is less than the impedance of the second charging and discharging circuit, and the impedance of the first charging and discharging circuit corresponds to at least one of the dimensions of the first positive electrode overcurrent region 11 and the second positive electrode overcurrent region 21.

[0015] In this embodiment, since the impedance of the first charging and discharging circuit is less than that of the second charging and discharging circuit, the difference in charging and discharging rates between the two circuits can be reduced, thus lowering the risk of excessive charging and discharging current in the first battery 30 and the second battery 40. Furthermore, the impedance of the first charging and discharging circuit corresponds to at least one of the dimensions of the first positive electrode overcurrent region 11 and the second positive electrode overcurrent region 21. Therefore, by adjusting at least one of the dimensions of the first positive electrode overcurrent region 11 and the second positive electrode overcurrent region 21, the impedance of the first positive electrode overcurrent region 11 can be reduced, making the difference in charging and discharging rates between the two circuits adjustable. This achieves current balance between the first and second charging and discharging circuits, preventing excessive current in each circuit. Compared to installing a current-limiting module within the electronic device to limit the charging and discharging current of the battery, this method does not require occupying the internal installation space of the electronic device's second positive electrode overcurrent region.

[0016] In this embodiment of the application, the first housing 10 and the second housing 20 may be at least part of any housing used to house internal components of an electronic device, which may include at least one of a middle frame and a back shell.

[0017] Specifically, the aforementioned electronic device may be a foldable screen electronic device, which includes at least two screen parts, each screen part including a housing and a display screen disposed on the housing, and the aforementioned first housing 10 and second housing 20 may be the housings of any two screen parts that are rotatably connected among the at least two screen parts.

[0018] The first housing 10 includes a first positive current-carrying region 11, and the first positive current-carrying region 11 is conductive. Specifically, the first housing 10 may have a metal housing region, which may be at least a portion of the first housing 10, and the first positive current-carrying region 11 may be located within this metal housing region. For example, the back shell of the first housing 10 may be a metal structure, and the first positive current-carrying region 11 may be at least a portion of the back shell region of the first housing 10.

[0019] The second housing 20 includes a second positive current-carrying region 21, and this second positive current-carrying region 21 is conductive. Specifically, the second housing 20 may have a metal housing region, which may be at least a portion of the second housing 20, and the second positive current-carrying region 21 may be located within this metal housing region. For example, the back shell of the second housing 20 may be a metal structure, and the second positive current-carrying region 21 may be at least a portion of the back shell region of the second housing 20.

[0020] The first positive current-carrying region 11 and the second positive current-carrying region 21 are electrically connected, which can be achieved through a metal wire between the first positive current-carrying region 11 and the second positive current-carrying region 21.

[0021] In this embodiment, the first battery 30 is disposed within the first housing 10, which may be achieved by bonding the first battery 30 to the first housing 10; alternatively, the first housing 10 may have a battery slot 100, and the first battery 30 may be embedded within the battery slot 100 of the first housing 10. Similarly, the second battery 40 is disposed within the second housing 20 in a similar manner, and will not be described in detail here.

[0022] The capacity of the second battery 40 is less than that of the first battery 30. This difference can be caused by at least one difference between the first battery 30 and the second battery 40, such as in volume, energy density, and material.

[0023] For example, such as Figure 1 As shown, due to the uneven distribution of the installation space inside the housing, the volume of the first battery 30 installed in the first housing 10 is larger than the volume of the second battery 40 installed in the second housing 20, thereby making the capacity of the first battery 30 larger than the capacity of the second battery 40.

[0024] The positive electrode of the first battery 30 is electrically connected to the first positive electrode overcurrent region 11, which can be achieved by means of a metal wire or the like.

[0025] In this embodiment of the application, the electronic device further includes a main circuit board 50, which is disposed within the housing.

[0026] The aforementioned main circuit board 50 can be any circuit board used to carry electronic components, and the circuit board is equipped with a battery charging and discharging management module.

[0027] The aforementioned battery charge / discharge management module is used to control the charging or discharging of the first battery 30 and the second battery 40. Specifically, as shown... Figure 2As shown, the battery charging and discharging management module may include a power management integrated chip (PMIC) and a fast charging protocol chip, as shown in the figure. The fast charging protocol chip and the power management integrated chip are connected in parallel. One end of the fast charging protocol chip is connected to the USB interface of the electronic device, and the other end is connected to the first battery 30 and the second battery 40.

[0028] The main circuit board 50 and the first battery 30 are connected to form a first charging and discharging circuit. The charging and discharging positive electrode pad of the main circuit board 50 can be electrically connected to the second positive electrode overcurrent region 21 through the traces of the flexible printed circuit (FPC). The ground terminal of the main circuit board 50 and the negative terminal of the first battery 30 are connected through the traces of the flexible printed circuit board. The positive terminal of the first battery 30 is electrically connected to the second positive electrode overcurrent region 21 through the first positive electrode overcurrent region 11, thus forming the first charging and discharging circuit.

[0029] The main circuit board 50 and the second battery 40 are connected to form a second charging and discharging circuit. This can be achieved by connecting the positive charging and discharging pad of the main circuit board 50 to the positive terminal of the second battery 40 through the traces of the flexible circuit board, and connecting the ground terminal of the main circuit board 50 and the negative terminal of the second battery 40 through the traces of the flexible circuit board to form a second charging and discharging circuit.

[0030] In the aforementioned first charging and discharging circuit, the main circuit board 50 is connected to the positive terminal of the first battery 30 through the first positive overcurrent region 11 and the second positive overcurrent region 21. The first positive overcurrent region 11 and the second positive overcurrent region 21 can be regarded as traces between the main circuit board 50 and the positive terminal of the first battery 30. Since the first positive overcurrent region 11 and the second positive overcurrent region 21 are each part of the casing region, the impedance in the first charging and discharging circuit is affected by at least one of the positive overcurrent regions, that is, the impedance of the first charging and discharging circuit corresponds to the size of at least one positive overcurrent region.

[0031] Specifically, at least one of the thickness and width of the aforementioned at least one overcurrent region may correspond to the impedance of the first charge-discharge circuit. For example, in the direction from the main circuit board 50 to the positive electrode of the first battery 30, the impedance of the first charge-discharge circuit may be reduced by increasing the width of the at least one positive electrode overcurrent region, thereby making the impedance of the first charge-discharge circuit less than that of the second charge-discharge circuit.

[0032] The size of at least one of the aforementioned overcurrent areas can be set according to actual needs. Specifically, when designing the aforementioned electronic device, the size of at least one positive overcurrent area can be adjusted to a target size using simulation software, so that under this target size, the ratio of the charge / discharge rate of the first charge / discharge circuit to the charge / discharge rate of the second charge / discharge circuit is within a preset range. Within this preset range, the charge / discharge current of the first battery 30 and the second battery 40 is within a reasonable current value range, thereby avoiding the risk of damage caused by excessive charge / discharge current.

[0033] In some implementations, the charge / discharge rate of the first charge / discharge circuit is the same as that of the second charge / discharge circuit.

[0034] Based on this, by setting the charge / discharge rate of the first charge / discharge circuit to be the same as that of the second charge / discharge circuit, the charge / discharge current values ​​of the first battery 30 and the second battery 40 are made more reasonable, thereby further improving the reliability of the electronic device.

[0035] The charge / discharge rate of the first charge / discharge circuit is the same as that of the second charge / discharge circuit. This can be achieved by adjusting the thickness of at least one of the positive electrode overcurrent regions 11 and 21, thereby adjusting the impedance of the first charge / discharge circuit and changing its charge / discharge rate, ultimately making the charge / discharge rate of the first charge / discharge circuit the same as that of the second charge / discharge circuit.

[0036] In some implementations, the impedance of the first charge / discharge circuit corresponds at least to one of the area of ​​the first positive overcurrent region and the area of ​​the second positive overcurrent region.

[0037] Based on this, since the impedance of the first charging and discharging circuit is related to the area of ​​at least one overcurrent region, the impedance of the first charging and discharging circuit can be adjusted by changing the area of ​​the at least one overcurrent region. Compared with setting the thickness of the housing, it is easier to adjust the impedance of the first charging and discharging circuit and reduce the thickness of the electronic device.

[0038] In some embodiments, the first housing 10 further includes a first negative electrode overcurrent region 12, which is insulated from the first positive electrode overcurrent region 11, and the negative electrode of the first battery 30 is electrically connected to the first negative electrode overcurrent region 12. The second housing 20 also includes a second negative current-carrying area 22, which is insulated from the second positive current-carrying area 21. The second negative current-carrying area 22 is electrically connected to the first negative current-carrying area 12, and the ground terminal of the main circuit board 50 and the negative terminal of the second battery 40 are electrically connected to the second negative current-carrying area 22.

[0039] Based on this, by electrically connecting the ground terminal of the main circuit board 50, the negative terminal of the second battery 40, and the second negative overcurrent region 22, the second negative overcurrent region 22 serves as a common path impedance between the first battery 30, the second battery 40, and the main circuit board 50, so that the difference in charge and discharge rates between the two batteries is only affected by the impedance between the positive terminal of the battery and the main circuit board 50.

[0040] The first negative current-carrying region 12 can also be a conductive portion of the first housing 10, and the first negative current-carrying region 12 is insulated from the first positive current-carrying region 11; similarly, the second negative current-carrying region 22 can also be a conductive portion of the second housing 20, and the second negative current-carrying region 22 is insulated from the second positive current-carrying region 21.

[0041] For example, in the first housing 10, all housing areas except for the first positive electrode overcurrent area 11 and the first negative electrode overcurrent area 12 are plastic areas, and the first positive electrode overcurrent area 11 and the first negative electrode overcurrent area 12 are spaced apart and filled with plastic portions, etc.; similarly, the structure of the second housing 20 is similar.

[0042] In some embodiments, the first negative electrode overcurrent region 12 is the region in the first housing 10 other than the first positive electrode overcurrent region 11, and / or, the second negative electrode overcurrent region 22 is the region in the second housing 20 other than the second positive electrode overcurrent region 21.

[0043] Based on this, by using the portion of each casing other than the positive electrode current-carrying area as the negative electrode current-carrying area, the structure of the casing is made simpler.

[0044] Specifically, each of the aforementioned housings (first housing 10 or second housing 20) can be a metal housing, and an insulating groove is formed between the positive and negative current-carrying areas of the housing. An insulating connector 90 is embedded in the insulating groove, and the positive and negative current-carrying areas are fixedly connected by the insulating connector 90 to form the housing. For example, the first positive current-carrying area 11 and the first negative current-carrying area 12 are connected by a plastic insulating component, etc.

[0045] In some implementations, such as Figure 3 As shown, a battery slot 100 is provided on the first housing 10, and the first positive electrode overcurrent region 11 and the first negative electrode overcurrent region 12 are located on at least one side of the battery slot 100. Electronic devices also include: Multiple metal springs 60 are fixedly connected to the first positive current-passing region 11 and the first negative current-passing region 12, respectively. The first battery 30 is detachably embedded in the battery slot 100, and the positive and negative terminals of the first battery 30 respectively abut against the metal spring 60.

[0046] Based on this, by opening a battery slot 100 on the first housing 10, and connecting the first positive current-passing area 11 and the first negative current-passing area 12 with metal springs 60, the first battery 30 can be detachably embedded in the battery slot 100, and the positive and negative terminals of the first battery 30 respectively abut against the metal springs 60, not only can the installation and removal of the first battery 30 be conveniently realized, but the connection stability of the first charging and discharging circuit is also guaranteed.

[0047] The metal lines of the first positive current-carrying area 11, the second positive current-carrying area 21, and the main circuit board 50 can be made of metals of different materials.

[0048] In some embodiments, the first positive overcurrent region 11, the second positive overcurrent region 21, and the metal lines of the main circuit board 50 are made of the same metal material.

[0049] Based on this, by setting the first positive current overcurrent region 11, the second positive current overcurrent region 21 and the metal lines of the main circuit board 50 to be made of the same metal material, the conductivity of the first positive current overcurrent region 11, the second positive current overcurrent region 21 and the metal lines is the same, thereby reducing the power loss of the first charging and discharging circuit.

[0050] For example, if the metal circuit of the main circuit board 50 is made of copper, the first housing 10 can be made of copper.

[0051] In some implementation methods, please refer to Figure 4 and 5 The aforementioned electronic devices also include: The rotating component 70 is connected to the first housing 10 and the second housing 20, and the rotating component 70 can rotate and drive the first housing 10 and the second housing 20 to fold relative to each other.

[0052] The first positive current-carrying region 11 and the second positive current-carrying region 21 can be electrically connected by the rotating assembly 70.

[0053] Based on this, not only can the risk of excessive charging and discharging current in the first battery 30 and the second battery 40 in electronic devices be reduced, and the size of foldable screen electronic devices be reduced, but the electrical connection between the first positive overcurrent region 11 and the second positive overcurrent region 21 can also be made more stable.

[0054] The aforementioned rotating component 70 can be any metal conductive component capable of relative rotation between the first housing 10 and the second housing 20.

[0055] For example, the aforementioned rotating component 70 may be a virtual swing arm or hinge connected to the first housing 10 and the second housing 20.

[0056] In some embodiments, the rotating assembly 70 includes two rotating sub-assemblies that are electrically connected to each other and can rotate relative to each other. The two rotating sub-assemblies are respectively disposed in the first positive current-carrying region 11 and the second positive current-carrying region 21. One of the two rotating sub-assemblies is electrically connected to the first positive current-carrying region and the other is electrically connected to the second positive current-carrying region.

[0057] In this embodiment, by setting a rotating sub-assembly in the first positive current region 11 and the second positive current region 21, and by enabling the two rotating sub-assemblies to achieve electrical connection between the first positive current region 11 and the second positive current region 21, the reliability of the relative rotation of the first housing 10 and the second housing 20, as well as the connection reliability of the first charging and discharging circuit, are further improved.

[0058] In some implementations, please refer to [further details]. Figure 5 Each rotating sub-assembly includes: Support base 71; Gear 72 is movably mounted on support 71.

[0059] In this configuration, the support base 71 of one of the two rotating subassemblies is fixedly connected to the first positive current-passing area 11, and the support base 71 of the other is fixedly connected to the second positive current-passing area 21, and the gears 72 of the two rotating subassemblies mesh.

[0060] Based on this, the relative rotation of the first housing 10 and the second housing 20 can be achieved through the cooperation of the two rotating components 70, and the electrical connection of the first positive current-carrying region 11 and the second positive current-carrying region 21 can be achieved, thereby making the structure of the rotating component 70 simpler and more reliable.

[0061] The aforementioned support base 71 can be any structure that is fixedly connected to its corresponding housing and can support the aforementioned gear 72.

[0062] For example, taking the fixed connection with the first positive current-passing region 11 as an example, the support base 71 may be welded to the first positive current-passing region 11 at one end, and movably connected to the gear 72 through a rotating shaft at the other end, and so on.

[0063] In some embodiments, the support 71 includes: The connecting part 711 is attached to and fixedly connected to at least a portion of its corresponding positive current-passing region. The support part 712 is fixedly connected to the connecting part 711, and the support part 712 is movably connected to the gear 72.

[0064] Based on this, by providing a support base 71 including a connecting part 711 and a supporting part 712, with the supporting part 712 fixedly connected to the connecting part 711, and the connecting part 711 being attached to and fixedly connected to its corresponding positive overcurrent area, not only can the connection stability between the support base 71 and the first metal housing part be improved, but the conductivity stability of the support base 71 can also be increased.

[0065] The support portion 712 is fixedly connected to the connecting portion 711, and the support portion 712 and the connecting portion 711 can be integrally formed.

[0066] The aforementioned connecting portion 711 is fitted and fixedly connected to at least a portion of its corresponding positive overcurrent region. This can be achieved by the connecting portion 711 covering and connecting to the at least a portion of the region. For example, the connection between the connecting portion 711 and the at least a portion of the region can be fixedly connected using screws or conductive adhesive, etc.

[0067] It should be noted that the above-mentioned electronic device may be provided with only one rotating component 70, which is connected to the first positive current region 11 and the second positive current region 21.

[0068] Alternatively, the aforementioned electronic device may be provided with multiple sets of rotating components 70, which are connected to the connection between the first housing 10 and the second housing 20.

[0069] For example, two sets of rotating components 70 can be set up. One set of rotating components 70 is connected to the first positive current-carrying region 11 and the second positive current-carrying region 21, and the first positive current-carrying region 11 and the second positive current-carrying region 21 are electrically connected. The other set of rotating components 70 is connected to the first negative current-carrying region 12 and the second negative current-carrying region 22, and the first negative current-carrying region 12 and the second negative current-carrying region 22 are electrically connected, and so on.

[0070] In this embodiment of the application, the above-mentioned electronic device can be any device equipped with the first battery 30 and the second battery 40, such as a mobile phone or a tablet computer, etc.

[0071] Other configurations and operations of the electronic devices according to embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that, include: A first housing, the first housing including a first positive current-passing region; The second housing is rotatably connected to the first housing, and the second housing includes a second positive current-carrying region, which is electrically connected to the first positive current-carrying region. A first battery is disposed inside the first housing, and the positive terminal of the first battery is electrically connected to the first positive terminal overcurrent region. A second battery is disposed inside the second housing, and the capacity of the second battery is smaller than that of the first battery. A main circuit board is disposed within the second housing. The main circuit board is electrically connected to the second positive electrode overcurrent region. A first charging and discharging circuit is formed between the main circuit board and the first battery, and a second charging and discharging circuit is formed between the main circuit board and the second battery. The impedance of the first charging and discharging circuit is less than the impedance of the second charging and discharging circuit, and the impedance of the first charging and discharging circuit corresponds to at least one of the dimensions of the first positive electrode overcurrent region and the second positive electrode overcurrent region.

2. The electronic device according to claim 1, characterized in that, The charge / discharge rate of the first charge / discharge circuit is the same as that of the second charge / discharge circuit.

3. The electronic device according to claim 1, characterized in that, The impedance of the first charging and discharging circuit corresponds to at least one of the area of ​​the first positive electrode overcurrent region and the area of ​​the second positive electrode overcurrent region.

4. The electronic device according to claim 1, characterized in that, The first housing further includes a first negative electrode overcurrent region, which is insulated from the first positive electrode overcurrent region, and the negative electrode of the first battery is electrically connected to the first negative electrode overcurrent region. The second housing also includes a second negative current-carrying area, which is insulated from the second positive current-carrying area. The second negative current-carrying area is electrically connected to the first negative current-carrying area, and the ground terminal of the main circuit board and the negative terminal of the second battery are electrically connected to the second negative current-carrying area.

5. The electronic device according to claim 4, characterized in that, The first negative electrode overcurrent region is the region in the first housing other than the first positive electrode overcurrent region, and / or the second negative electrode overcurrent region is the region in the second housing other than the second positive electrode overcurrent region.

6. The electronic device according to claim 4, characterized in that, The first housing has a battery slot, and the first positive electrode current-carrying area and the first negative electrode current-carrying area are located on at least one side of the battery slot; The electronic device also includes: Multiple metal springs are fixedly connected to the first positive electrode overcurrent region and the first negative electrode overcurrent region, respectively. The first battery is detachably embedded in the battery slot, and the positive and negative terminals of the first battery respectively abut against the metal spring.

7. The electronic device according to claim 1, characterized in that, The first positive current-carrying area, the second positive current-carrying area, and the metal lines of the main circuit board are made of the same metal material.

8. The electronic device according to claim 1, characterized in that, Also includes: A rotating assembly is connected to the first housing and the second housing, and the rotating assembly is rotatable and drives the first housing and the second housing to rotate relative to each other; The first positive overcurrent region and the second positive overcurrent region are electrically connected through the rotating assembly.

9. The electronic device according to claim 8, characterized in that, The rotating assembly includes two rotating sub-assemblies, which are electrically connected and can rotate relative to each other. The two rotating sub-assemblies are respectively disposed in the first positive electrode overcurrent region and the second positive electrode overcurrent region. One of the two rotating sub-assemblies is electrically connected to the first positive electrode overcurrent region, and the other is electrically connected to the second positive electrode overcurrent region.

10. The electronic device according to claim 9, characterized in that, Each of the said rotating sub-assemblies includes: Support base; The gear, which is movably mounted on the support base, In this configuration, the support base of one of the two rotating sub-assemblies is fixedly connected to the first positive current-carrying area, and the support base of the other is fixedly connected to the second positive current-carrying area, and the gears of the two rotating sub-assemblies are engaged.

Images