Electronic device

Abstract

The invention discloses electronic equipment, and belongs to the technical field of charging. The electronic equipment comprises a frame body, a main circuit board and a battery are arranged in the frame body, a charging interface is formed in one side of the frame body, the battery is arranged between the charging interface and the main circuit board, and the charging interface is electrically connected with the main circuit board through an FPC; wherein the FPC comprises a main body part and a branch part, the branch part is arranged on one side of the main body part, the two ends of the main body part are electrically connected with the charging interface and the main circuit board respectively, the first end of the branch part is connected with the main body part, and the second end of the branch part is grounded.

Description

Technical Field

[0001] The present application belongs to the field of charging technology, and specifically relates to an electronic device. Background Art

[0002] At present, electronic devices are provided with a battery, a charging interface, a middle frame and a flexible printed circuit (FPC). The charging interface and the battery are fixed on the middle frame, and one end of the FPC is connected to the battery, and the other end is connected to the charging interface. Therefore, when charging the electronic device, the charging current can first flow from the charging interface through the FPC to the battery, and then flow from the battery through the FPC and the middle frame to the ground end of the charging interface.

[0003] However, when charging an electronic device, the impedance corresponding to the path where the charging current flows from the battery to the ground terminal of the charging interface is relatively large. Therefore, the charging time of the electronic device may be relatively long, resulting in relatively low charging efficiency of the electronic device. Summary of the invention

[0004] The present application aims to provide an electronic device, which at least solves the problem of low charging efficiency of the electronic device.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In the first aspect, an embodiment of the present application proposes an electronic device, which includes: a frame, a main circuit board and a battery are arranged in the frame, a charging interface is arranged on one side of the frame, the battery is arranged between the charging interface and the main circuit board, and the charging interface and the main circuit board are electrically connected through an FPC; wherein the above-mentioned FPC includes a main body and a branch part, the branch part is arranged on one side of the main body, the two ends of the main body are respectively electrically connected to the charging interface and the main circuit board, the first end of the branch part is connected to the main body, and the second end of the branch part is grounded.

[0007] In an embodiment of the present application, the electronic device includes a frame, a main circuit board and a battery are arranged in the frame, and a charging interface is arranged on one side of the frame, the battery is arranged between the charging interface and the main circuit board, and the charging interface and the main circuit board are electrically connected through an FPC. The FPC includes a main body and a branch, the branch is arranged on one side of the main body, the two ends of the main body are electrically connected to the charging interface and the main circuit board respectively, the first end of the branch is connected to the main body, and the second end of the branch is grounded. Since the FPC is divided into a main body and a branch part, and the first end of the branch part is connected to the main body, and the second end of the branch part is grounded, when charging the electronic device, in addition to the path from the battery through the main circuit board and the main body to the charging interface and the path from the battery through the main circuit board and the frame to the charging interface to the ground end of the charging interface, the charging current can also flow from the battery through the main circuit board, the frame, the branch part and the main body to the charging interface to the ground end, and the path from the battery through the main circuit board, the frame, the branch part and the main body to the charging interface is connected in parallel with the other two paths. Therefore, the impedance corresponding to the path where the charging current flows from the battery to the ground end of the charging interface can be reduced, thereby reducing the charging time of the electronic device. In this way, the charging efficiency of the electronic device can be improved.

[0008] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0010] Figure 1 It is a structural schematic diagram of a traditional three-stage stacking structure in the related art;

[0011] Figure 2 It is a structural schematic diagram of a three-stage straight pull stacking structure in the related art;

[0012] Figure 3 It is one of the front view structural schematic diagrams of the electronic device provided in the embodiment of the present application;

[0013] Figure 4 This is the second front view structural schematic diagram of the electronic device provided in the embodiment of the present application;

[0014] Figure 5 This is one of the bottom-up structural schematic diagrams of the electronic device provided in the embodiment of the present application;

[0015] Figure 6 This is the third front view structural schematic diagram of the electronic device provided in the embodiment of the present application;

[0016] Figure 7 This is the second bottom-up structural schematic diagram of the electronic device provided in the embodiment of the present application;

[0017] Figure 8 This is the third bottom-up structural schematic diagram of the electronic device provided in the embodiment of the present application;

[0018] Fig. 9 is a schematic structural diagram of a middle frame of an electronic device provided in an embodiment of the present application;

[0019] Fig.10 This is the fourth bottom-view structural schematic diagram of the electronic device provided in the embodiment of the present application;

[0020] Fig.11 This is the fifth bottom-view structural schematic diagram of the electronic device provided in the embodiment of the present application.

[0021] Reference numerals:

[0022] Middle frame-101, motherboard-102, sub-board-103, battery-104, FPC-105, charging port-106, battery FPC-107, charging chip-108, locking board screw-109, locking board screw-110, locking board screw-111, locking board screw-112, middle frame-201, motherboard-202, battery-203, FPC-204, charging port-205, battery FPC-206, charging chip-207, locking board screw-208, locking board screw-209, Frame -10, grounding area -100, main circuit board -11, battery -12, charging interface -13, FPC -14, main body -141, branch part -142, copper leakage part -1421, battery FPC -15, reinforcing steel sheet -16, reinforcing sheet -17, charging coil -18, first connecting part -19, metal spring sheet -191, metal spring sheet -192, second connecting part -20, BTB connector -200, auxiliary circuit board -21, third connecting part -22, metal spring sheet -221. DETAILED DESCRIPTION

[0023] Embodiments of the present invention will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] 1. Traditional three-stage stacking structure

[0025] At present, the stacking structure of electronic devices (such as mobile phones) mostly adopts the traditional three-stage stacking structure, which consists of a mobile phone motherboard, a battery, and a sub-board. The motherboard and the sub-board are connected by an FPC, and the FPC and the motherboard are connected by a board-to-board (BTB) connector.

[0026] Figure 1 FIG. 1 shows a schematic diagram of a conventional three-stage stacking structure in the related art. Figure 1 As shown, the electronic device (such as a mobile phone) may include a middle frame 101, a main board 102, a sub-board 103, a battery 104, an FPC 105, a charging interface 106, a battery FPC 107, and a charging chip 108. The main board 102 is fixed to the middle frame 101 by a locking screw 109, the sub-board 103 is fixed to the middle frame 101 by a locking screw 110, and the charging interface 106 is fixed to the sub-board 103 by a locking screw 111. Thus, when charging the mobile phone, the charging current can enter the mainboard 102 through the charging interface 106 via the FPC105, and after being adjusted by the charging chip 108, enter the battery 104 through the battery FPC107 for charging; and, a part of the charging current can also enter the mainboard 102 through the battery FPC107, and flow to the sub-board 103 through the middle frame 101 through the locking plate screw 109, and enter the ground end of the charging interface 106 through the locking plate screw 112; another part of the charging flow can also enter the mainboard 102 through the battery FPC107, and flow to the ground end of the charging interface 106 through the FPC105, thereby forming a charging circuit.

[0027] 2. Straight-pull three-stage stacking structure

[0028] At present, the battery capacity of electronic devices is getting larger and larger, and the increase in battery capacity will lead to an increase in battery thickness. Therefore, in the straight-pull three-stage stacking structure improved on the basis of the above-mentioned traditional three-stage stacking structure, the sub-board is removed to directly connect with the charging interface through the FPC, thereby reducing the thickness of the entire electronic device.

[0029] Figure 2 FIG. 1 shows a schematic diagram of a three-stage straight pull stacking structure in the related art. Figure 2As shown, the electronic device (such as a mobile phone) may include a middle frame 201, a mainboard 202, a battery 203, an FPC 204, a charging interface 205, a battery FPC 206, and a charging chip 207. Among them, the mainboard 202 is fixed to the middle frame 201 by a locking plate screw 208, and the charging interface 205 is fixed to the middle frame 201 by a locking plate screw 209. Thus, when charging the mobile phone, the charging current can enter the mainboard 202 through the charging interface 205 through the FPC 204, and after being adjusted by the charging chip 207, enter the battery 203 through the battery FPC 206 for charging; and a part of the charging current can also enter the mainboard 202 through the battery FPC 206, and flow to the ground end of the charging interface 205 through the locking plate screw 208 through the middle frame 201; another part of the charging flow can also enter the mainboard 202 through the battery FPC 206, and flow to the ground end of the charging interface 205 through the FPC 204; thereby forming a charging circuit.

[0030] 3. Other terms

[0031] The term "first" or "second" in the specification and claims of the present application may include one or more of the features explicitly or implicitly. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In the description of the present invention, 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 the present invention can be understood according to specific circumstances.

[0034] The electronic device provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0035] Figure 3 FIG. 1 shows a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 3 As shown, the electronic device provided in the embodiment of the present application may include: a frame 10, a main circuit board 11 and a battery 12 are arranged in the frame 10, a charging interface 13 is arranged on one side of the frame 10, the battery 12 is arranged between the charging interface 13 and the main circuit board 11, and the charging interface 13 and the main circuit board 11 are electrically connected through a flexible circuit board FPC14.

[0036] In some embodiments of the present application, the frame body 10 may specifically be a metal middle frame, and a receiving space is recessed on the metal middle frame, and the receiving space is used to receive other components of the electronic device.

[0037] In some embodiments of the present application, the main circuit board 11 may be a main board. Of course, the main circuit board 11 may also be other circuit boards, which is not limited in the embodiments of the present application.

[0038] In some embodiments of the present application, Figure 3 The battery 12 can be fixedly disposed in the accommodation space, and the main circuit board 11 can be fixed to the frame 10 by metal screws.

[0039] In some embodiments of the present application, the battery 12 may be electrically connected to the main circuit board 11. Figure 3 , the battery 12 can be electrically connected to the main circuit board 11 through the battery FPC 15.

[0040] In some embodiments of the present application, the charging interface 13 may be a USB socket. The charging interface 13 may be directly fixed to the frame 10 by metal screws, or may be fixed to a sub-board provided on the frame 10 by metal screws, so as to be fixed to the frame 10 through the sub-board.

[0041] It can be understood that when the electronic device adopts the above-mentioned straight-pull three-stage stacking structure, the charging interface 13 can be directly fixed on the frame 10; when the electronic device adopts the above-mentioned traditional three-stage stacking structure, the charging interface 13 can be fixed on the frame 10 through a sub-board.

[0042] In the embodiment of the present application, the above-mentioned FPC14 includes a main body 141 and a branch portion 142, the branch portion 142 is arranged on one side of the main body 141, the two ends of the main body 141 are electrically connected to the charging port 13 and the main circuit board 11 respectively, the first end of the branch portion 142 is connected to the main body 141, and the second end of the branch portion 142 is grounded.

[0043] In some embodiments of the present application, Figure 3 , a reinforcing steel sheet 16 is also provided on the main circuit board 11, and a gap is formed between the reinforcing steel sheet 16 and the main circuit board 11, and one end of the main body 141 connected to the main circuit board 11 can be located in the gap. It can be understood that, since the one end of the main body 141 connected to the main circuit board 11 can be fixed to the main circuit board 11 by the reinforcing steel sheet 16, the strength of the one end of the main body 141 connected to the main circuit board 11 can be increased, and the breakage between the one end of the main body 141 connected to the main circuit board 11 and the main circuit board 11 can be avoided.

[0044] In some embodiments of the present application, the end of the main body 141 connected to the charging interface 13 can be directly fixedly connected to the charging interface 13, or fixedly connected to the charging interface 13 by a metal screw.

[0045] In some embodiments of the present application, the main body portion 141 and the first ends of the branch portions 142 may be integrally formed or fixedly connected.

[0046] In some embodiments of the present application, the second end of the branch portion 142 may be connected to the frame body 10 to be grounded through the frame body 10 .

[0047] In some embodiments of the present application, the first end of the branch portion 142 is connected to a position of the main body 141 close to the charging port 13 .

[0048] It can be understood that since the second end of the branch portion 142 can be connected to the frame 10, connecting the first end of the branch portion 142 to a position of the main body 141 close to the charging port 13 can reduce the length from the first end of the branch portion 141 to the second end of the branch portion 142.

[0049] It can be seen that since the first end of the branch part can be connected to the position of the main body close to the charging port, when the second end of the branch part is connected to the frame, the length from the first end of the branch part to the second end of the branch part can be reduced, thereby reducing costs.

[0050] In some embodiments of the present application, Figure 3 ,like Figure 4 and Figure 5As shown, the electronic device provided in the embodiment of the present application may further include: a reinforcing sheet 17, which is disposed on the frame 10, and there is a gap between the reinforcing sheet 17 and the frame 10, and the second end of the branch portion 142 is located in the gap.

[0051] In some embodiments of the present application, the reinforcing sheet 17 may specifically be a steel sheet.

[0052] It is understandable that the second end of the branch portion 142 can be fixed to the frame 10 through the reinforcing sheet 17 .

[0053] As can be seen, since the electronic device is further provided with a reinforcing sheet, and the reinforcing sheet can fix the second end of the branch portion to the frame, the strength of the second end of the branch portion can be increased to prevent the second end of the branch portion from breaking.

[0054] In some embodiments of the present application, Figure 6 As shown, the electronic device is further provided with a charging coil 18, and the charging coil 18 is provided between the charging interface 13 and the main circuit board 11. The main body 141 is bent in a direction away from the charging coil 18.

[0055] In the present application embodiment, combined Figure 6 Since other device components of the electronic device (such as a charging coil 18, a battery 12, etc.) may be arranged between the charging port 13 and the main circuit board 11, the main body 141 may be bent in a direction away from the charging coil 18 to free up more space for other device components, so that the electronic device may have enough space to layout the charging coil 18; or, the battery 12 may have enough space to apply glue.

[0056] It can be seen that since the main body can be completely moved away from the charging coil, more space can be left for other device components of the electronic device. Therefore, there is enough space for other device components to be fixed and arranged; and there is enough space for the battery to be glued, so the reliability of battery fixation can be improved.

[0057] In some embodiments of the present application, Figure 6 The charging coil 18 and the branch portion 142 are located on different sides of the main body 141 .

[0058] As can be seen, since the charging coil and the branch portion are located on different sides of the main body, the branch portion and the charging coil can be avoided from overlapping, thereby reducing the impact of the branch portion on the charging coil.

[0059] In some embodiments of the present application, Figure 6 A copper leakage portion 1421 is disposed on the second end of the branch portion 142 .

[0060] It can be seen that since the copper leakage part is provided on the second end of the branch part, the impedance between the second end of the branch part and the ground end can be reduced, so the charging time of the electronic device can be further reduced, thereby further improving the charging efficiency of the electronic device.

[0061] In some embodiments of the present application, the second end of the branch portion 142 may be directly connected to the frame 10; or, the second end of the branch portion 142 may be indirectly connected to the frame 10 through other components. The other components may be a sub-board (such as the sub-circuit board in the following embodiments) and / or a connecting portion (such as the first connecting portion, the second connecting portion, and the third connecting portion in the following embodiments).

[0062] In a possible implementation of the present application, Figure 7 As shown, a grounding area 100 is provided on the frame 10; the electronic device provided in the embodiment of the present application may also include: a first connecting portion 19, a first end of the first connecting portion 19 is connected to the second end of the branch portion 142, and a second end of the first connecting portion 19 is connected to the frame 10.

[0063] It can be understood that the grounding area 100 can be regarded as the ground terminal of the frame 10 . When the charging current flows to the grounding area 100 , it can flow to the ground terminal of the charging interface 13 through the grounding area 100 and the frame 10 .

[0064] In some embodiments of the present application, the first connection portion 19 may include any of the following: a metal spring, a BTB connector, and a circuit board. It is understood that the first connection portion 19 is conductive, that is, the charging current can flow from the frame 10 through the first connection portion 19 to the second end of the branch portion 142.

[0065] It can be seen that since the first connecting part is also provided in the electronic device, the second end of the branch part can be fixed to the frame through the first connecting part, and the charging current can also flow directly from the battery through the main circuit board, the frame, the first connecting part, the branch part and the main body to the grounding area (i.e., the ground terminal) of the charging interface, thereby increasing the reliability of fixing the second end of the branch part to the frame while reducing the impedance corresponding to the path of the charging current from the battery to the ground terminal of the charging interface.

[0066] In some embodiments of the present application, the first connecting portion 19 includes at least one of the following: a metal spring, a BTB connector.

[0067] In some embodiments of the present application, when the first connection portion 19 includes a metal spring, the number of the metal spring may be at least one. When the number of the metal spring is at least two, the at least two metal springs are evenly distributed between the second end of the branch portion 142 and the frame 10.

[0068] For example, Figure 8 and Fig. 9 As shown, the first connecting portion includes at least two metal springs, such as a metal spring 191 and a metal spring 192, wherein the second ends of the metal spring 191 and the metal spring 192 are connected to the grounding area 100 of the frame 10, and the first ends of the metal spring 191 and the metal spring 192 are connected to the second end of the branch portion 142.

[0069] In the embodiment of the present application, since the metal spring sheet can conduct electricity and can undergo elastic deformation when impacted to reduce damage caused by the impact, the second end of the branch portion 142 is fixed to the frame 10 by the metal spring sheet, which can reduce the disconnection between the second end of the branch portion 142 and the frame 10 when impacted.

[0070] As can be seen, since the second end of the branch part can be firmly fixed to the frame by the metal spring, the disconnection between the second end of the branch part and the frame can be reduced. And / or, since the second end of the branch part can be firmly fixed to the frame by the BTB connector, the disconnection between the second end of the branch part and the frame can be reduced.

[0071] The impedance corresponding to the path where the charging current flows from the battery 12 to the ground terminal of the charging interface 13 under this structure will be described below by way of example.

[0072] Combination Figures 7 to 9 When charging the electronic device, the charging current may first flow from the charging interface 13 through the FPC 14 and the main circuit board 11 to the battery 12, and then a portion of the charging current flows from the battery 12 through the main circuit board 11 and the main body 141 of the FPC 14 to the ground end of the charging interface 13, another portion of the charging current flows from the battery 12 through the frame 10 to the ground end of the charging interface 13, and another portion of the charging current flows from the battery 12 through the main circuit board 11, the frame 10, the first connecting portion 19, the branch portion 142 and the main body 141 to the ground end of the charging interface 13. Compared with the related art, the embodiment of the present application adds a path 1 that flows from the battery 12 through the main circuit board 11, the frame 10, the first connecting portion 19, the branch portion 142 and the main body 141 to the ground end of the charging interface 13, and the path 1 is connected in parallel with the path 2 that flows from the battery 12 through the main circuit board 11 and the frame 10 to the ground end of the charging interface 13. Therefore, the impedance corresponding to these two paths can be: Rmetal10 =R metal11 / / R fpc2 , where R metal1 is the impedance corresponding to path 2, R fpc2 is the impedance corresponding to path 1, R metal0 is the equivalent impedance corresponding to path 1 and path 2. It can be understood that since path 1 and path 2 are connected in parallel, the equivalent impedance corresponding to path 1 and path 2 is smaller than the impedance corresponding to path 1 and smaller than the impedance corresponding to path 2.

[0073] In addition, path 3 from the battery 12 through the main circuit board 11 and the main body 141 of the FPC 14 to the ground end of the charging interface 13 is also connected in parallel with path 1 and path 2. In this way, the impedance corresponding to these three paths can be: R gnd =R fpc / / R metal0 , where R gnd is the equivalent impedance corresponding to path 1, path 2 and path 3, R fpc is the impedance corresponding to path 3, R metal0 is the equivalent impedance corresponding to path 1 and path 2. It can be understood that since path 1, path 2 and path 3 are connected in parallel, the equivalent impedance corresponding to path 1, path 2 and path 3 is less than the impedance corresponding to any path, that is, the impedance corresponding to the path where the charging current flows from the battery 12 to the ground end of the charging interface 13 is reduced, thereby improving the efficiency of charging the electronic device.

[0074] In another possible implementation of the present application, Fig.10 As shown, a grounding area 100 is provided on the frame 10; the electronic device provided in the embodiment of the present application may also include: a second connecting portion 20, a first end of the second connecting portion 20 is connected to the second end of the branch portion 142; a sub-circuit board 21, a first end of the sub-circuit board 21 is connected to the second end of the second connecting portion 20; a third connecting portion 22, a first end of the third connecting portion 22 is connected to the second end of the sub-circuit board 20, and a second end of the third connecting portion 22 is connected to the grounding area 100.

[0075] In some embodiments of the present application, the second connection part 20 may include at least one of the following: a metal spring, a BTB connector. The third connection part 22 may include at least one of the following: a metal spring, a BTB connector. The third connection part 22 may be the same as or different from the second connection part 20. It can be understood that the second connection part 20, the auxiliary circuit board 21 and the third connection part 22 are all conductive, that is, the charging current can flow from the frame 10 through the second connection part 20, the auxiliary circuit board 21 and the third connection part 22 to the second end of the branch part 142.

[0076] Thus, it can be known that, since the second connection part, the auxiliary circuit board and the third connection part are provided in the electronic device, and the auxiliary circuit board is provided between the second connection part and the third connection part, the connection firmness between the second connection part and the third connection part can be increased by the auxiliary circuit board; and the charging current can flow directly from the frame through the second connection part, the auxiliary circuit board, the third connection part, the branch part and the main body to the ground end of the charging interface; thereby, the reliability of the second end of the branch part being fixed to the frame can be increased while reducing the impedance corresponding to the path of the charging current from the battery to the ground end of the charging interface.

[0077] In some embodiments of the present application, when the second connection portion 20 includes a metal spring, the number of the metal springs may be at least two, and the at least two metal springs are evenly distributed between the second end of the branch portion 142 and the auxiliary circuit board 21 .

[0078] In the embodiment of the present application, since the metal spring sheet can conduct electricity and can undergo elastic deformation when impacted to reduce damage caused by the impact, the second end of the branch portion 142 is fixed to the auxiliary circuit board 21 by the metal spring sheet, which can reduce the disconnection between the second end of the branch portion 142 and the auxiliary circuit board 21 when impacted.

[0079] As can be seen, since the second end of the branch portion can be firmly fixed to the auxiliary circuit board by the metal spring, the disconnection between the second end of the branch portion and the auxiliary circuit board can be reduced. And / or, since the second end of the branch portion can be firmly fixed to the auxiliary circuit board by the BTB connector, the disconnection between the second end of the branch portion and the auxiliary circuit board can be reduced.

[0080] In some embodiments of the present application, when the third connection portion 22 includes a metal spring, the number of the metal springs may be at least two, and the at least two metal springs are evenly distributed between the auxiliary circuit board 21 and the frame 10 .

[0081] In the embodiment of the present application, since the metal spring sheet can conduct electricity and can undergo elastic deformation when impacted to reduce damage caused by the impact, the auxiliary circuit board 21 is fixed to the frame 10 by the metal spring sheet, which can reduce the disconnection between the auxiliary circuit board 21 and the frame 10 when impacted.

[0082] As can be seen, since the auxiliary circuit board can be firmly fixed to the frame by the metal spring, the disconnection between the auxiliary circuit board and the frame can be reduced. And / or, since the auxiliary circuit board can be firmly fixed to the frame by the BTB connector, the disconnection between the auxiliary circuit board and the frame can be reduced.

[0083] For example, Fig.11 As shown, the second connection part is a BTB connector 200, and the third connection part is a metal spring 221. The first end of the BTB connector 221 is connected to the second end of the branch part 142, and the second end of the BTB connector 221 is connected to the first end of the auxiliary circuit board 21; the first end of the metal spring 221 is connected to the second end of the auxiliary circuit board 21, and the second end of the metal spring 221 is connected to the grounding area 100.

[0084] The impedance corresponding to the path where the charging current flows from the battery 12 to the ground terminal of the charging interface 11 under this structure will be described below by way of example.

[0085] Combination Fig.10 and Fig.11 When charging the electronic device, the charging current can first flow from the charging interface 13 through the FPC 14 and the main circuit board 11 to the battery 12, and then, a part of the charging current flows from the battery 12 through the main body 141 of the FPC 14 to the ground end of the charging interface 13, another part of the charging current flows from the battery 12 through the FPC 14 and the frame 10 to the ground end of the charging interface 13, and another part of the charging current flows from the battery 12 through the main circuit board 11, the frame 10, the third connecting portion 22, the auxiliary circuit board 21, the second connecting portion 20, the branch portion 142 and the main body 141 to the ground end of the charging interface 13. Compared with the related art, the embodiment of the present application adds a path 4 from the battery 12 through the main circuit board 11, the frame 10, the third connection part 22, the auxiliary circuit board 21, the second connection part 20, the branch part 142 and the main body 141 to the ground end of the charging interface 13, and the path 4 is connected in parallel with the path 2 from the battery 12 through the frame 10 to the ground end of the charging interface 13. Therefore, the impedance corresponding to these two paths can be: R metal12 =R metal11 / / R fpc3 , where R metal1 is the impedance corresponding to the above path 2, R fpc3 is the impedance corresponding to path 4, R metal2 is the equivalent impedance corresponding to path 2 and path 4. It can be understood that since path 2 and path 4 are connected in parallel, the equivalent impedance corresponding to path 2 and path 4 is smaller than the impedance corresponding to path 4 and smaller than the impedance corresponding to path 2.

[0086] Furthermore, path 3, which flows from the battery 12 through the main body 141 of the FPC 14 to the ground end of the charging interface 13, is also connected in parallel with path 2 and path 4. Thus, the impedances corresponding to these three paths can be: R gnd =R fpc / / R metal0 , where R gndis the equivalent impedance corresponding to path 2, path 3 and path 4, R fpc is the impedance corresponding to path 3, R metal2 is the equivalent impedance corresponding to path 2 and path 4. It can be understood that since path 2, path 3 and path 4 are connected in parallel, the equivalent impedance corresponding to path 2, path 3 and path 4 is smaller than the impedance corresponding to any path, that is, the impedance corresponding to the path where the charging current flows from the battery component to the ground end of the charging interface is reduced. Therefore, the efficiency of charging the electronic device can be improved.

[0087] In some embodiments of the present application, the number of the branch portions 142 is at least two; wherein the at least two branch portions 142 are disposed on the same side of the main body 141 .

[0088] In some embodiments of the present application, the at least two branch portions 142 may be disposed on a side of the main body 141 away from the charging coil 18 .

[0089] It can be seen that since multiple branch parts can be set and the multiple branch parts can be set on the same side of the main body, therefore, on the one hand, the charging circuit can flow to the ground terminal through more paths (i.e., the battery passes through the main circuit board, the frame, each branch part and the path from the main body to the charging interface), and the more paths are connected in parallel with the other two paths. Therefore, the impedance corresponding to the path of the charging current flowing from the battery to the ground terminal of the charging interface can be further reduced, thereby further reducing the charging time of the electronic device. In this way, the charging efficiency of the electronic device can be improved.

[0090] The embodiment of the present application provides an electronic device, which includes a frame, a main circuit board and a battery are arranged in the frame, and a charging interface is arranged on one side of the frame, the battery is arranged between the charging interface and the main circuit board, and the charging interface and the main circuit board are electrically connected through an FPC. The FPC includes a main body and a branch part, the branch part is arranged on one side of the main body, the two ends of the main body are electrically connected to the charging interface and the main circuit board respectively, the first end of the branch part is connected to the main body, and the second end of the branch part is grounded. Since the FPC is divided into a main body and a branch part, and the first end of the branch part is connected to the main body, and the second end of the branch part is grounded, when charging the electronic device, in addition to the path from the battery through the main circuit board and the main body to the charging interface and the path from the battery through the main circuit board and the frame to the charging interface to the ground end of the charging interface, the charging current can also flow from the battery through the main circuit board, the frame, the branch part and the main body to the charging interface to the ground end, and the path from the battery through the main circuit board, the frame, the branch part and the main body to the charging interface is connected in parallel with the other two paths. Therefore, the impedance corresponding to the path where the charging current flows from the battery to the ground end of the charging interface can be reduced, thereby reducing the charging time of the electronic device. In this way, the charging efficiency of the electronic device can be improved.

[0091] In the description of the embodiments of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0092] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that: include: A frame, wherein a main circuit board and a battery are arranged in the frame, a charging interface is arranged on one side of the frame, the battery is arranged between the charging interface and the main circuit board, and the charging interface and the main circuit board are electrically connected through a flexible circuit board FPC; Among them, the FPC includes a main body and a branch part, the branch part is arranged on one side of the main body, the two ends of the main body are electrically connected to the charging interface and the main circuit board respectively, the first end of the branch part is connected to the main body, and the second end of the branch part is grounded.

2. The electronic device according to claim 1, characterized in that: A grounding area is provided on the frame; and the electronic device further comprises: A first connection portion, wherein a first end of the first connection portion is connected to a second end of the branch portion, and a second end of the first connection portion is connected to the grounding area.

3. The electronic device according to claim 2, characterized in that: The first connection portion includes at least one of the following: a metal spring, a board-to-board (BTB) connector.

4. The electronic device according to claim 1, characterized in that: A grounding area is provided on the frame; and the electronic device further comprises: a second connecting portion, wherein a first end of the second connecting portion is connected to a second end of the branch portion; A secondary circuit board, a first end of the secondary circuit board being connected to a second end of the second connecting portion; A third connection portion, wherein a first end of the third connection portion is connected to a second end of the auxiliary circuit board, and a second end of the third connection portion is connected to the grounding area.

5. The electronic device according to claim 1, characterized in that: The first end of the branch portion is connected to a position of the main body close to the charging port.

6. The electronic device according to claim 1, characterized in that: The electronic device further comprises: A charging coil, the charging coil being arranged between the charging interface and the main circuit board; Wherein, the main body is bent in a direction away from the charging coil.

7. The electronic device according to claim 6, characterized in that: The charging coil and the branch portion are located on two different sides of the main body portion.

8. The electronic device according to claim 1, characterized in that: The electronic device further comprises: The reinforcing sheet is arranged on the frame body, and a gap is formed between the reinforcing sheet and the frame body, and the second end of the branch part is located in the gap.

9. The electronic device according to claim 1, characterized in that: A copper leakage portion is arranged on the second end of the branch portion.

10. The electronic device according to claim 1, characterized in that: The number of the branches is at least two; Wherein, at least two of the branch portions are arranged on the same side of the main body portion.

Images