Patent Publication Number: US-2022231528-A1

Title: Electronic device

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     The present application is a continuation-application of International (PCT) Patent Application No. PCT/CN2020/113172 filed Sep. 3, 2020, which claims priority and rights of Chinese Patent Application No. 201921695254.4, filed on Oct. 9, 2019 and Chinese Patent Application No. 201910955492.2, filed on Oct. 9, 2019, the entire contents of all of which are hereby incorporated by reference. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to the technical field of electronic devices, in particular to an electronic device. 
     BACKGROUND 
     In the related art, during some electronic devices being charged, a current may arrive a second board first from a power interface, then be transported from the second board to a first board through a flexible circuit board, and further be transported from the first board to a battery through another flexible circuit board, and accordingly a charging path is relatively long. In response to the electronic devices are quickly charged in a current increasing manner, due to a current flowing path being relatively long and a current flow being relatively large, a current loss may be easy to be caused, such that a heat during the electronic devices being charged may be increased and a charging efficiency may be reduced. Furthermore, the electronic devices may be burnt, even safety accidents may be caused, such as the electronic devices on fire, the batteries explosions, and so on. 
     SUMMARY 
     The present disclosure aims to solve at least one of the technical problems in the related art. An electronic device is provided in the present disclosure and has a short charging path and low heat as charging, and high safety and so on. 
     According to a first aspect of the present disclosure, an electronic device is provided and includes a housing defined with a power interface on the housing; a battery arranged in the housing and including a battery protection board and a cell; a circuit board assembly arranged in the housing, electrically connected to the power interface, and including a first board located at one side of the battery, a second board located at the other side of the battery, a first flexible circuit board connected to the battery protection board and the first board, and a second flexible circuit board connected to the battery protection board and the second board. The first board and the second board are arranged at intervals along a first direction, and the battery protection board and the cell are arranged in sequence along a second direction substantially perpendicular to the first direction. The electronic device according to the present disclosure has a short charging path and low heat as charging, and high safety and so on. 
     According to a second aspect of the present disclosure, an electronic device is provided and includes a housing including a first side edge, a second side edge opposite to and substantially parallel to the first side edge, and having a power interface, a third side edge substantially perpendicular to the first side edge, and a fourth side edge opposite to and substantially parallel to the third side edge; a battery arranged in the housing and including a cell and a battery protection board arranged at a side of the cell close to the third side edge or the second side edge; and a circuit board assembly arranged in the housing, electrically connected to the power interface, and including a first board arranged at a side of the battery close to the first side edge, a second board arranged at a side of the battery close to the second side edge, a first flexible circuit board connected the battery protection board and the first board, and a second flexible circuit board, connected the battery protection board and the second board. The electronic device according to the present disclosure has a short charging path and low heat as charging, and high safety and so on. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a structural schematic view of an electronic device according to one embodiment of the present disclosure. 
         FIG. 2  is a structural schematic view of the electronic device according to another embodiment of the present disclosure. 
         FIG. 3  is a structural schematic view of the electronic device according to another embodiment of the present disclosure. 
         FIG. 4  is a structural schematic view of the electronic device according to another embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     The embodiments of the present disclosure will be described in detail below. Examples of the embodiments may be illustrated in the drawings. Same or similar reference numerals may be used to indicate same or similar elements or elements having same or similar functions. The embodiments described below with reference to the drawings are illustrative, and are not intended to be construed as limitations. 
     The following disclosure provides many different embodiments or examples for implementing different structures of the present disclosure. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Of course, these are merely examples, and are not intended to limit the present disclosure. In addition, reference numerals and/or reference letters are repeated in different examples of the present disclosure. The repetition is for the purpose of simplicity and clarity, and do not indicate the relationship between various embodiments and/or arrangements discussed herein. Moreover, examples of various specific processes and materials are provided in the present disclosure. However, those skilled in the art may recognize applications of other processes and/or usages of other materials. 
     According to a first aspect of the present disclosure, an electronic device is provided and includes: a housing defined with a power interface on the housing; a battery arranged in the housing, and including a battery protection board and a cell; a circuit board assembly arranged in the housing, electrically connected to the power interface, and including a first board located at one side of the battery; a second board located at the other side of the battery, a first flexible circuit board connected to the battery protection board and the first board, and a second flexible circuit board connected to the battery protection board and the second board. The first board and the second board are arranged at intervals along a first direction, and the battery protection board and the cell are arranged in sequence along a second direction substantially perpendicular to the first direction. 
     In some embodiments, a length direction of the battery protection board is a direction from the first board to the second board, and the battery protection board is arranged at a side portion between of space the first board and the second board. 
     In some embodiments, the first flexible circuit board is connected to a side portion of the first board close to the battery protection board, and the second flexible circuit board is connected to a side portion of the second board close to the battery protection board. 
     In some embodiments, the first flexible circuit board is connected to one end of a length direction of the battery protection board, and the second flexible circuit board is connected to the other end of the length direction of the battery protection board. 
     In some embodiments, the length direction of the battery protection board is a length direction of the electronic device. 
     In some embodiments, wherein the housing includes a first side edge, a second side edge opposite to and substantially parallel to the first side edge, a third side edge and a fourth side edge opposite to and substantially parallel to the third side edge. The first side edge is arranged at one side of a length direction of the third side edge and the fourth side edge, the second side edge is arranged at the other side of the length direction of the third side edge and the fourth side edge, the first board is arranged at a side of the second board close to the first side edge, the second board is arranged at a side of the first board close to the second side edge, and the battery protection board is substantially parallel to the third side edge and the fourth side edge. 
     In some embodiments, the power interface includes a first sub power interface arranged on the first side edge, and the first sub power interface is electrically connected to the first board to charge the battery through the first flexible circuit board. 
     In some embodiments, the power interface includes a second sub power interface arranged on the second side edge, and the second sub power interface is electrically connected to the second board to charge the battery through the second flexible circuit board. 
     In some embodiments, the power interface includes a third sub power interface arranged on the third side edge, the third sub power interface is located in an orthographic projection of the first board on the third side edge, and electrically connected to the first board to charge the battery through the first flexible circuit board. 
     In some embodiments, the power interface includes a fourth sub power interface arranged on the third side edge, the fourth sub power interface is located in an orthographic projection of the second board on the third side edge, and electrically connected to the second board to charge the battery through the second flexible circuit board. 
     In some embodiments, a distance between a side portion of the battery protection board close to the fourth side edge and the third side edge is less than that between the side portion of the battery protection board and the fourth side edge. 
     In some embodiments, the circuit board assembly further includes a transition board connected to the first board and the second board. 
     In some embodiments, the transition board includes a third flexible circuit board connected to the first board and the second board, and the third flexible circuit is arranged on a side of the battery in a thickness direction of the battery 
     According to a second aspect of the present disclosure, an electronic device is provided and includes: a housing including a first side edge, a second side edge opposite to and substantially parallel to the first side edge, and having a power interface, a third side edge substantially perpendicular to the first side edge, and a fourth side edge opposite to and substantially parallel to the third side edge; a battery arranged in the housing, including a cell, and a battery protection board arranged at a side of the cell close to the third side edge or the second side edge; and a circuit board assembly arranged in the housing, electrically connected to the power interface, and including a first board arranged at a side of the battery close to the first side edge, a second board arranged at a side of the battery close to the second side edge, a first flexible circuit board connected the battery protection board and the first board, and a second flexible circuit board connected the battery protection board and the second board. 
     In some embodiments, a length direction of the battery protection board is a direction from the first board to the second board, and the battery protection board is arranged at a side portion of space between the first board and the second board. 
     In some embodiments, the first flexible circuit board is connected to a side portion of the first board close to the battery protection board, and the second flexible circuit board is connected to a side portion of the second board close to the battery protection board. 
     In some embodiments, the battery protection board is substantially parallel to the third side edge and the fourth side edge. 
     According to a third aspect of the present disclosure, an electronic device is provided and includes: a housing defined with a power interface on the housing; a battery arranged in the housing, and including a battery protection board and a cell; a circuit board assembly arranged in the housing, electrically connected to the power interface, and including a first board located at one side of the battery; a second board located at the other side of the battery, a first flexible circuit board connected to the battery protection board and the first board, and a second flexible circuit board connected to the battery protection board and the second board. The first board and the second board are arranged along a first direction, and the battery protection board is arranged at a side portion of space between the first board and the second board along a second direction substantially perpendicular to the first direction. 
     In some embodiments, the battery protection board and the cell are arranged in sequence along the second direction. 
     In some embodiments, the first flexible circuit board is connected to a side portion of the first board close to the battery protection board, and the second flexible circuit board is connected to a side portion of the second board close to the battery protection board. 
     In the related art, during some electronic devices being charged, a current may arrive a second board first from a power interface, then be transported from the second board to a first board through a flexible circuit board, and further be transported from the first board to a battery through another flexible circuit board, and accordingly a charging path is relatively long. In response to the electronic devices are quickly charged in a current increasing manner, due to a current flowing path being relatively long and a current flow being relatively large, a current loss may be easy to be caused, such that a heat during the electronic devices being charged may be increased and a charging efficiency may be reduced. Furthermore, the electronic devices may be burnt, even safety accidents may be caused, such as the electronic devices on fire, the batteries explosions, and so on. Therefore, an electronic device  100  is provided in the present disclosure and has a short charging path and low heat as charging, and high safety and so on. 
     An electronic device  100  according to embodiments of the present disclosure will be described in the following, with reference to the accompanying drawings. 
     As shown in  FIG. 1 , the electronic device  100  according to embodiments of the present disclosure may include a housing  1 , a battery  2  and a circuit board assembly  3 . A power interface  10  is defined on the housing  1 , the battery  2  is arranged in the housing  1  and includes a battery protection board  21  and a cell  22 . The circuit board assembly  3  is arranged in the housing  1 , electrically connected to the power interface  10 . In this way, the battery may be get charged in response to the power interface  10  being connected to a power outlet through a power cord and a power plug. 
     In  FIG. 1 , the circuit board assembly  3  may include a first board  31 , a second board  32 , a first flexible circuit board  33  and a second flexible circuit board  34 . The first board  31  and the second board  32  are arranged at intervals along a first direction (direction F 1  as shown in  FIG. 1 ), and the battery protection board  21  and the cell  22  are arranged in sequence along a second direction (direction F 2  as shown in  FIG. 1 ) substantially perpendicular to the first direction. The first flexible circuit board  33  is connected to the battery protection board  21  and the first board  31 , and the second flexible circuit board  34  is connected to the battery protection board  21  and the second board  32 . 
     That is, the battery  2  is sandwiched between the first board  31  and the second board  32 , and the battery protection board  21  is located at a side of the cell  22 , which is not the case that the battery protection board  21  is located at a side of the cell  22  close to the first board  31 , or located at a side of the cell  22  close to the second board  32 . In this way, a length of the first flexible circuit board  33  connecting the first board  31  and the battery protection board  21  may be configured to be shorter, and a length of the second flexible circuit board  34  connecting the second board  32  and the battery protection board  21  may also be configured to be shorter. 
     In this way, through the battery protection board  21  being located at the side of the cell  22 , the first flexible circuit board  33  being connected to the battery protection board  21  and the first board  31 , and the second flexible circuit board  34  being connected to the battery protection board  21  and the second board  32 , a current transmission path between the battery  2  and the first board  31  and a current transmission path between the battery  2  and the second board  32  may be effectively reduced. In this way, whether the first board  31  and the first flexible circuit board  33  are used to charge the battery  2 , or the second board  32  and the second flexible circuit board  34  are used to charge the battery  2 , a charging path may be reduced. Heat generated as charging, charging efficiency and charging safety may be improved. In addition, in response to one of the first flexible circuit board  33  and the second flexible circuit board  34  is used to charge the battery  2 , the other one of the first flexible circuit board  33  and the second flexible circuit board  34  may be used to discharge the battery  2 , such that a power supply need may be satisfied and the electronic device  100  may be ensured to be work normally. 
     For example, in embodiments shown in the  FIG. 1  and  FIG. 2 , a length direction (the direction F 1  as shown in  FIG. 1 ) of the battery protection board  21  is a direction from the first board  31  to the second board  32 . That is, the first board  31  and the second board  32  are arranged at intervals along the length direction of the battery protection board  21 , the first board  31  is arranged at a side of the battery  2 , and the second board  32  is arranged at the other side of the battery. The first flexible circuit board  33  is connected between the battery protection board  21  and the first board  31 , the second flexible circuit board  34  is connected between the battery protection board  21  and the second board  32 . In this way, the first board  31  is arranged at one side of the length direction of the battery protection board  21 , and the second board  32  is arranged at the other side of the length direction of the battery protection board  21 , such that one end of the length direction of the battery protection board  21  (for example, a top end of the battery protection board  21  shown in the  FIG. 1 ) may be close to the first board  31 , and the other end of the length direction of the battery protection board  21  (for example, a bottom end of the battery protection board  21  shown in the  FIG. 1 ) may be close to the second board  32 . As a result, the current transmission path may be effectively reduced. 
     For example, in some specific embodiments of the present disclosure, the power interface  10  is connected with the second board  32 , in which case the second flexible circuit board  34  may be used to the second board to charge the battery  2 , and the first flexible circuit board  33  may be used to the battery  2  to discharge the first board. Moreover, in the present embodiment, there are a plurality of ways for the second board  32  to obtain a discharge from the battery  2 , for example, the battery  2  may discharge the second board  32  by the second flexible circuit board  34  in response to the power interface  10  being not connected to the power outlet. For another example, in response to the circuit board assembly  3  includes a transition board  30  connected to the first board  31  and the second board  32 , the battery  2  may also discharge the second board  32  by the transition board  30 , such that a discharge from the battery to the first board  31  may also be transited to the second board  32  through the transition board  30 . 
     Therefore, the battery protection board  21  is arranged at a side of the battery  2  such that the first board  31  may be arranged at one side of a length direction of the battery protection board  21  and the second board  32  may be arranged at the other side of the length direction of the battery protection board  21 . In this way, two flexible circuit board may be extended out from the battery protection board  21 , that is, the first flexible circuit board  33  used to connected to the first board  31  and the second flexible circuit board  34  used to connected to the second board  32 . Thus, in response to the second board  32  being connected to the power interface  10 , the second flexible circuit board  34  may be used as a charging flexible circuit board to charge the battery  2  through the second board  32  being connected to the power interface  10 , and the first flexible circuit board  33  may be used as a discharging flexible circuit board to make the battery  2  supply power to the first board  31 . Similarly, in response to the first board  31  being connected to the power interface  10 , the first flexible circuit board  33  may be used as a charging flexible circuit board to charge the battery  2  through the first board  31  being connected to the power interface  10 , and the second flexible circuit board  34  may be used as a discharging flexible circuit board to make the battery  2  supply power to the second board  32 . 
     A heating loss calculation formula during a charging process of the battery  2  is P=I 2 R, wherein I is a charging current and R is a loop impedance, since the present disclosure can reduce a length of the flexible circuit board used to charge the battery  2 , a charging loop impedance R may be reduced, and a reduction amount of R is related to the length of the battery  2 , such that the heating loss may be reduced and the charging efficiency may be improved, which may be more significant in a case of high-current charging. 
     In short, the electronic device  100  according to the embodiments of the present disclosure, since the first board  31  is arranged at one side of a length direction of the battery protection board  21  and the second board  32  is arranged at the other side of the length direction of the battery protection board  21 , that is, the battery  2  is arranged at a side portion of space between the first board  31  and the second board  32 . Further, the first flexible circuit board  33  and the second flexible circuit board  34  are arranged, such that the charging path may be shortened to reduce the heating as charging, and the user experience may be improved. 
     It should be noted that a composition and function of “the battery protection board  21 ” are well known to those skilled in the art. That is, for a rechargeable battery  2 , such as a lithium battery, an integrated circuit board acting as a protective role, etc., for example, for the rechargeable lithium battery, a reason why a protection is needed is determined by its own characteristics. A material of the lithium battery itself determines that it cannot be overcharged, over discharged, with an overcurrent, with a short circuit, and charged and discharged under an ultra-high temperature, thus the lithium battery always be with a protection board with a sampling resistor and a current fuse. Therefore, it will not be repeated here. 
     In addition, after a specific type of the electronic device  100  is determined, a specific composition and function of the “the first board  31 ” and the “the second board  32 ” are also well known to those skilled in the art. For example, in a case that the electronic device  100  is a smart phone, those skilled in the art can clearly understand what the first board  31 ″ and “the second board  32 ” refer to. Of course, the electronic device  100  according to the embodiments of the present disclosure is not limited to a smart phone, for example, may be a tablet computer, a vehicle-mounted computer, etc., and no limitation is made here. 
     It should be noted that the cell  22  may be one or multiple, and the battery protection board  21  is connected to tabs of each of the cells  22 . In some embodiments of the present disclosure, the battery  2  may have only one cell  22 . In other embodiments of the present disclosure, the battery  2  may also have multiple cells  22 , and the multiple cells  22  are connected in series and/or in shunts, that is, the multiple cells  22  may be connected in series, or the multiple cells  22  may be connected in shunts, or the multiple cells  22  may be connected first in series and then in shunts, or the multiple cells  22  may be connected first in shunts and then in series, etc. In this way, different practical requirements may be satisfied. 
     In some embodiments of the present disclosure, the circuit board assembly  3  may include the transition board  30  connected to the first board and the second board. In response to the battery  2  discharging to the first board  31  through the first flexible circuit board  33 , the first board  31  may discharge to the second board  32  through the transition board  30 . In response to the battery  2  discharging to the second board  32  through the second flexible circuit board  34 , the second board  32  may discharge to the first board  31  through the transition board  30 . In this way, the electronic device may be work normally. 
     In some specific embodiments of the present disclosure, as shown in  FIG. 1 , the transition board the transition board  30  may include a rigid circuit board  35  connected to the first board the first board  31  and the second board the second board  32 , and the rigid circuit board  35  is located on a side of the battery the battery  2  away from the battery protection board the battery protection board  21 . For example, in the embodiment shown in  FIG. 1 , in response to the battery protection board the battery protection board  21  is located on a right side of the battery  2 , the rigid circuit board  35  is located on a left side of the battery  2 , such that a space may be more fully utilized and an assembly may be facilitated. 
     In some specific embodiments of the present disclosure, in  FIG. 2 , the transition board  30  may include a third flexible circuit board  36  connected to the first board  31  and the second board  32 , and the third flexible circuit board  36  is arranged on a side of the battery  2  in a thickness direction of the battery  2 . In this way, there may be more accommodating space for the battery  2  to be reserved such that a capacity of the battery  2  may be larger to satisfy a longer standby time. 
     In some embodiments, as shown in  FIG. 1 , the battery protection board  21  is arranged at the side portion of the space between the first board  31  and the second board  32 . A meaning of “the side portion of the space between the first board  31  and the second board  32 ” will be explained in the following, that is, the length direction of the battery protection board  21  is defined to be the first direction F 1 , the first direction F 1  is substantially perpendicular to the second direction F 2 . Two ends of the first board  31  in the second direction F 2  are a first end and second end, and two ends of the second board  32  in the second direction F 2  are a third end and a fourth end. The first end is opposite to the second end in the first direction F 1 , and the third end is opposite to the fourth end in the first direction F 1 . The battery protection board  21  is arranged between the first end and the third end, or between the second and the fourth end. That is, the battery protection board  21  is arranged close to a side edge of the space between the first board  31  and the second board  32 , such that an accommodating space for the cell  22  may be increased and the capacity and endurance of the battery  2  may be improved. 
     As shown in  FIG. 1 , the first flexible circuit board  33  is connected to a side portion of the first board  31  close to the battery protection board  21 , and the second flexible circuit board  34  is connected to a side portion of the second board  32  close to the battery protection board  21 . In this way, the length of the first flexible circuit board  33  may be further shortened, and the length of the second flexible circuit board  34  may be further shortened. As a result, the charging path may be shortened to reduce the heating as charging, and the user experience may be improved. For example, in the embodiments shown in  FIG. 1 , in response to the battery protection board  21  being arranged at a right side portion of the space between the first board  31  and the second board  32 , the first flexible circuit board  33  is connected to a right end of the first board  31 , and the second flexible circuit board  34  is connected to a right end of the second board  32 . 
     As shown in  FIG. 1 , the first flexible circuit board  33  is connected to one end of the length direction of the battery protection board  21 , and the second flexible circuit board  34  is connected to the other end of the length direction of the battery protection board  21 . In this way, the length of the first flexible circuit board  33  may be further shortened, and the length of the second flexible circuit board  34  may be further shortened. As a result, the charging path may be shortened to reduce the heating as charging, and the user experience may be improved. For example, in the specific embodiment shown in  FIG. 1 , the length direction of the battery protection board  21  is an up-down direction. The first flexible circuit board  33  may be connected to a top end of the battery protection board  21 , and the second flexible circuit board  34  may be connected to a bottom end of the battery protection board  21 . Of course, the present disclosure is not limited to thereto, the first flexible circuit board  33  and the second flexible circuit board  34  may also be connected to other parts of the battery protection board  21  to better satisfy different actual requirements. 
     In some embodiments, as shown in  FIG. 1 , the length direction of the battery protection board  21  (for example, the F 1  direction shown in  FIG. 1 ) may be a length direction of the electronic device  100 . Therefore, for most electronic devices, there is no need to greatly improve structure types of the first board  31  and the second board  32 , and there is also no need to greatly improve an overall layout of the electronic devices. In this way, it may be more convenient for a mass production and a production cost may be reduced. 
     In some embodiments, as shown in  FIG. 1 , the housing  1  may include a first side edge  11 , a second side edge  12  opposite to and substantially parallel to the first side edge  11 , a third side edge  13 , and a fourth side edge  14  opposite to and substantially parallel to the third side edge  13 . The first side edge  11  is arranged at one side of a length direction of the third side edge  13  and the fourth side edge  14 , and the second side edge  12  is arranged at the other side portion of the third side edge  13  and the fourth side edge  14 . The first board  31  is arranged at a side portion of the second board  32  close to the first side edge  11 , the second board  32  is arranged at a side portion of the first board  31  close to the second side edge  12 , and the battery protection board  21  is substantially parallel to the third side edge  13  and the fourth side edge  14 . In this way, a structure of the housing  1  may be simple, so as to facilitate producing and processing, and facilitate an assembly of the first board  31 , the second board  32  and the battery  2 . 
     It should be noted that a number and a specific arrangement location of the power interface  10  are not limited. The specific locations of the power interface  10  in some embodiments of the present disclosure will be described in the following, but the present disclosure is not limited to the following embodiments. 
     For example, in the embodiments shown in  FIG. 1 , the power interface  10  may include a first sub power interface  101  arranged on the first side edge  11 , and the first sub power interface  101  is electrically connected to the first board  31  to charge the battery  2  through the first flexible circuit board  33 . That is, in response to the first sub power interface  101  being connected to the power outlet, the first board  31  may charge the battery  2  through the first flexible circuit board  33 , and the battery  2  may discharge to the second board  32  through the second flexible circuit board  34 . In this way, since a distance between the first side edge  11  and the first board  31  is relatively short, a distance between the first sub power interface  101  and the first board  31  may be shortened, and the charging path may be further shortened, so as to reduce the heating as charging and improve the user experience. 
     For example, in the embodiments shown in  FIG. 1 , the power interface  10  may include a second sub power interface  102  arranged on the second side edge  12 , and the second sub power interface  102  is electrically connected to the second board  32  to charge the battery  2  through the second flexible circuit board  34 . That is, in response to the second sub power interface  102  being connected to the power outlet, the second board  32  may charge the battery  2  through the second flexible circuit board  34 , and the battery  2  may discharge to the first board  31  through the first flexible circuit board  33 . In this way, since a distance between the second side edge  12  and the second board  32  is relatively short, a distance between the second sub power interface  102  and the second board  32  may be shortened, and the charging path may be further shortened, so as to reduce the heating as charging and improve the user experience. 
     For example, in the embodiments shown in  FIG. 1 , the power interface  10  may include a third sub power interface  103  arranged on the third side edge  13 , the third sub power interface  103  is located in an orthographic projection (for example, A region shown in  FIG. 1 ) of the first board  31  on the third side edge  13 , and electrically connected to the first board  31  to charge the battery  2  through the first flexible circuit board  33 . That is, in response to the third sub power interface  103  being connected to the power outlet, the first board  31  may charge the battery  2  through the first flexible circuit board  33 , and the battery  2  may discharge to the second board  32  through the second flexible circuit board  34 . In this way, since a distance between the third sub power interface  103  and the first board  31  is relatively short, the charging path may be further shortened to reduce the heating as charging and improve the user experience. In addition, in the present embodiment, in response to a distance L 1  between a side portion of the battery protection board  21  close to the fourth side edge and the third side edge  13  being less than a distance L 2  between the side portion of the battery protection board  21  and the fourth side edge  14 , a distance between the first flexible circuit board  33  and the third sub power interface  103  may be further shortened, such that a power transferring length from the third sub power interface  103  to the first flexible circuit board  33  may be shortened. In this way, the charging path may be further shortened, so as to reduce the heating as charging and improve the user experience. 
     For example, in the embodiments shown in  FIG. 1 , the power interface  10  may include a fourth sub power interface  104  arranged on the third side edge  13 , the fourth sub power interface  104  is located in an orthographic projection of the second board  32  on the third side edge  13 , and electrically connected to the second board  32  to charge the battery  2  through the second flexible circuit board  34 . That is, in response to the fourth sub power interface  104  being connected to the power outlet, the second board  32  may charge the battery  2  through the second flexible circuit board  34 , and the battery  2  may discharge to the first board  31  through the first flexible circuit board  33 . In this way, since a distance between the fourth sub power interface  104  and the second board  32  is relatively short, the charging path may be further shortened, so as to reduce the heating as charging and improve the user experience. In addition, in the present embodiment, in response to the distance L 1  between the side portion of the battery protection board  21  close to the fourth side edge and the third side edge  13  being less than the distance L 2  between the side portion of the battery protection board  21  and the fourth side edge  14 , a distance between the second flexible circuit board  34  and the fourth sub power interface  104  may be further shortened, such that a power transferring length from the fourth sub power interface  104  to the second flexible circuit board  34  may be shortened. In this way, the charging path may be further shortened, so as to reduce the heating as charging and improve the user experience. 
     In a specific embodiment of the present disclosure, the battery  2  is configured to be a structure where the battery protection board  21  is arranged on a side, the first flexible circuit board  33  extends out from one end of the battery protection board  21  and connected to the first board  31 , and the second flexible circuit board  34  extends out from the other end of the battery protection board  21  and connected to the first board  31 . The power interface  10  is arranged at a position close to the second board  32 . The secondary board  32  charges the battery  2  through the second flexible circuit board  34 , and the battery  2  discharges to the first board  31  through the first flexible circuit board  33 , so as to shorten the charging path and improve a charging effect. In addition, in the embodiments of the present disclosure, the power interface  10  may be arranged at a bottom, a side, or even a top of the electronic device  100 , such that the charging path may be shortened, the heating as charging may be reduced, and the user experience may be improved. Moreover, in the embodiments of the present disclosure, the first board  31  and the second board  32  may be arranged to be a separate form by the third flexible circuit board  36 , or may be arranged to be an integral form by the rigid circuit board  35 , which is not limited. 
     In a specific embodiment of the present disclosure, in  FIGS. 1 and 2 , the electronic device  100  includes: a housing  1  including a first side edge  11 , a second side edge  12  opposite to and substantially parallel to the first side edge  11 , and having a power interface  10 , a third side edge  13  substantially perpendicular to the first side edge  11 , and a fourth side edge  14  opposite to and substantially parallel to the third side edge  13 ; a battery  2  arranged in the housing  1  and including a cell  22 , and a battery protection board  21  arranged at a side of the cell  22  close to the third side edge  13  or the second side edge  12 ; and a circuit board assembly  3  arranged in the housing  1 , electrically connected to the power interface  10  and including a first board  31  arranged at a side of the battery  2  close to the first side edge  11 , a second board  32  arranged at a side of the battery  2  close to the second side edge  12 , a first flexible circuit board  33  connected the battery protection board  21  and the first board  31 , and a second flexible circuit board  34  connected the battery protection board  21  and the second board  32 . In the present embodiment, the battery protection board  21  is arranged on a side portion of the electronic device  100 , such that the electronic device  100  may have a simple structure and the charging path may be short. 
     Of course, the present disclosure is not limited to thereto. In other embodiments of the present disclosure, the battery protection board  21  may also be arranged in other positions of the electronic device  100 . For example, in the embodiment shown in  FIG. 3 , the battery protection board  21  may be arranged between the rigid circuit board  35  and the cell  22 . For a further example, in the embodiment shown in  FIG. 4 , the battery protection board  21  may be arranged between the two cells  22 , located in a center position of the electronic device  100 , etc., which will not be repeated herein. 
     In addition, other configurations and operations of the electronic device  100  according to the embodiments of the present disclosure are known to those of ordinary skill in the art after the type of the electronic device  100  is determined, which will not be described in detail here. 
     In the description of the present specification, the description with reference to the terms “one embodiment”, “some embodiments”, “illustrative embodiment”, “example”, “specific example”, or “some examples”, and the like, means that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. Thus, the illustrative descriptions of the terms throughout this specification are not necessarily referring to the same embodiment or example of the present disclosure. Furthermore, the specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. In addition, various embodiments or examples described in the specification and features of various embodiments or examples, may be incorporated and combined by those skilled in the art in case of an absence of confliction. 
     Although the embodiments of the present disclosure have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principle and purpose of the present disclosure. The scope of the present disclosure is defined by the claims and the equivalents of the claims.