Charging system and electronic equipment

Abstract

The embodiment of the utility model provides a charging system and electronic equipment, and belongs to the technical field of charging, the charging system comprises a wired charging module and a wireless charging module which are electrically connected with a battery, the wired charging module is at least partially arranged on a first circuit board, and the wireless charging module is arranged on a second circuit board. The wireless charging module and the wired charging module are respectively distributed on the first circuit board and the second circuit board on the two sides of the battery in a distributed mode, compared with the mode that the wireless charging module and the wired charging module are concentrated on the main control board, heat generated by the wireless charging module can be dispersed to the second circuit board, and the effect of heat source dispersion is achieved; the problem that heat concentration easily causes overtemperature to trigger heat current limiting is solved, and the charging speed is increased. When the electronic equipment is arranged on the charging base to realize wireless charging, rapid heat dissipation of the wireless charging module on the second circuit board can be realized by virtue of a fan and the like in the charging base, so that the heat dissipation effect is improved, and the wireless charging speed is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging, in particular to a charging system and an electronic device. BACKGROUND

[0002] With the continuous progress of science and technology, more and more electronic devices such as mobile phones, tablet computers and smart wearable devices have entered people's lives. In order to facilitate users to charge the electronic devices, wireless charging technology has emerged as the times require, and most electronic devices currently have both wireless charging and wired charging modes.

[0003] The electronic device includes a battery, a main control board, a wireless charging module and a wired charging module. The main control board is usually located on one side of the battery. For example, in a straight bar mobile phone, the main control board can be located on the top side of the battery along the length direction of the mobile phone, and the main control board can be arranged more adjacent to the camera of the mobile phone. The wireless charging module and the wired charging module are arranged on the main control board, and the wireless charging module and the wired charging module can be electrically connected with the battery respectively to realize charging of the battery.

[0004] However, the wireless charging module and the wired charging module are concentrated on the main control board, and are usually concentrated at a position adjacent to the battery, which causes heat concentration at the position adjacent to the battery and easily triggers heat limiting, affecting the charging speed. Invention content

[0005] The present application provides a charging system and an electronic device, which can effectively improve the heat concentration phenomenon on the main control board, solve the problem of over-temperature in the charging process, reduce or avoid triggering heat limiting, and help to improve the charging speed.

[0006] The first aspect of the present application provides a charging system, including a first circuit board and a second circuit board, and the first circuit board and the second circuit board are respectively arranged on two sides of a battery. For example, when the charging system and the battery are assembled into a shell of an electronic device, along the length direction of the electronic device, the first circuit board and the second circuit board can be respectively located on two sides of the battery. Among the first circuit board and the second circuit board, the first circuit board can be arranged more adjacent to the top end of the shell, and the second circuit board can be arranged more adjacent to the bottom end of the shell. For example, the first circuit board can be used as the main control board of the electronic device, and the second circuit board can be used as the small board of the electronic device, which has a relatively small size.

[0007] The charging system further comprises a wired charging module and a wireless charging module, the wired charging module is at least partially arranged on the first circuit board, and the wired charging module is configured to be electrically connected with the battery. The wireless charging module is arranged on the second circuit board, and the wireless charging module is configured to be electrically connected with the battery. That is, the wired charging module of the charging system is partially or entirely arranged on the first circuit board, and the wireless charging module is arranged on the second circuit board. The wireless charging module and the wired charging module are respectively integrated on the two circuit boards distributed on the two sides of the battery, so that the wireless charging module and the wired charging module are distributed in a distributed manner. Compared with the case where the wireless charging module and the wired charging module are concentrated on the main control board (or the first circuit board), the heat generated by the wireless charging module can be dispersed to the second circuit board, the effect of dispersing the heat source is achieved, the phenomenon of heat concentration is effectively improved, the problem of over-temperature during charging is solved, the triggering of the thermal current limiting is reduced or avoided, and the charging speed is improved.

[0008] In some examples, the electronic device can form an electronic device assembly with the wireless charger. When the electronic device is wirelessly charged, the electronic device can be placed on a charging base of the wireless charger. In both the top end and the bottom end of the housing of the electronic device, the bottom end of the housing can be arranged more proximate to the charging base. A heat dissipation structure such as a fan can be arranged in the charging base. The wireless charging module is arranged on the second circuit board proximate to the bottom end of the housing. When the electronic device is placed on the charging base to realize wireless charging, the heat dissipation structure in the charging base can be used to rapidly dissipate heat from the wireless charging module proximate to the bottom end of the housing, improve the heat dissipation effect of the wireless charging module, and further improve the speed of wireless charging.

[0009] In a possible implementation, the charging coil is arranged proximate to the first circuit board. The charging coil comprises a first lead-out segment and a second lead-out segment, which extend towards the second circuit board. The first lead-out segment and the second lead-out segment are respectively electrically connected with the wireless charging module, so as to realize electrical connection between the charging coil and the wireless charging module.

[0010] The first lead-out segment and the second lead-out segment extend towards the second circuit board below the charging coil to realize electrical connection with the wireless charging module on the second circuit board. That is, in the length direction, the first lead-out segment and the second lead-out segment occupy the space between the charging coil and the second circuit board. The space between the charging coil and the second circuit board is large, and does not affect the layout shape of the charging coil.

[0011] Compared with extending the connection section of the charging coil to the upper main control board to realize the connection with the wireless charging module, the two connection sections (the first lead-out section and the second lead-out section) of the charging coil are inverted, the first lead-out section and the second lead-out section are led out from the side of the charging coil facing the second circuit board, and the space below the charging coil (the side adjacent to the second circuit board) is occupied. The first lead-out section and the second lead-out section can avoid occupying the layout space above the charging coil, reduce the wire width of the two connection sections of the charging coil, reduce the upper cutting edge structure above the charging coil, effectively improve the upper cutting edge condition of the charging coil, make the outer contour shape of the charging coil closer to a circle, and improve the charging compatibility and charging speed of the charging coil.

[0012] In a possible implementation, the first lead-out section and the second lead-out section extend to the second circuit board and are electrically connected with the second circuit board. The first lead-out section and the second lead-out section can be electrically connected with the wireless charging module through the connection wire on the second circuit board, facilitating the connection.

[0013] In a possible implementation, the charging system further includes a connection circuit board. The wired charging module includes a power supply device, and the power supply device is arranged on the first circuit board and is used to be electrically connected with the battery.

[0014] The second circuit board is further provided with an electrical interface, one end of the connection circuit board is electrically connected with the electrical interface, and the other end of the connection circuit board is electrically connected with the power supply device. In this way, the electrical interface and the power supply device of the wired charging module can be electrically connected through the connection circuit board, and then the electrical interface, the wired charging module and the battery are electrically connected, realizing the wired charging of the battery.

[0015] In a possible implementation, the wireless charging module is electrically connected with the power supply device through the connection circuit board. The wireless charging module can be electrically connected with the power supply device through the connection circuit board, and then the charging coil, the wireless charging module and the battery are electrically connected.

[0016] That is, the wired charging module is electrically connected with the electrical interface through the connection circuit board, realizing the wired charging of the battery. The wireless charging module is electrically connected with the battery through the connection circuit board, realizing the wireless charging of the battery, and the connection circuit board is multiplexed, without the need to arrange multiple connection circuit boards to realize the wired charging and the wireless charging of the battery, simplifying the path design of the charging system, being conducive to reducing the impedance of the charging path, and helping to improve the charging performance of the charging system.

[0017] In a possible implementation, the wired charging module further includes an overvoltage protection device, the overvoltage protection device is arranged on the second circuit board, and the overvoltage protection device is connected between the electrical interface and the connection circuit board. The overvoltage protection device can play a role in stabilizing the voltage of the power supply device, and can also avoid the problem of electric leakage caused by the connection of the connection circuit board and the electrical interface during wireless charging, thereby improving the reliability of the charging system.

[0018] In a possible implementation, the first circuit board has a first mounting position for assembling the camera. The first circuit board can be a main control board. Assembling the camera on the main control board facilitates the layout of various structural components in the shell of the electronic device and facilitates the electrical connection of the camera and the main control board and the control of the camera.

[0019] In a possible implementation, the second circuit board has a second mounting position for assembling the SIM card chip. The second circuit board can be a small board for the SIM card, and does not need to be additionally arranged, which is conducive to simplifying the structural design of the charging system and facilitating the layout and assembly of various structural components in the shell.

[0020] A second aspect of the embodiment of the present application provides an electronic device including a battery and the charging system of any of the above, and the wireless charging module and the wired charging module of the charging system are electrically connected with the battery, respectively.

[0021] By including the charging system, the wireless charging module and the wired charging module of the charging system are distributed on the two circuit boards on the two sides of the battery in a distributed manner, which can effectively improve the phenomenon of heat concentration and has a good heat dissipation effect. The charging system has a high charging speed, so that the battery of the electronic device can be quickly charged, and the use experience of the electronic device is improved.

[0022] In a possible implementation, the electronic device further includes a shell, the shell has a receiving cavity inside, and the battery and the charging system are arranged in the receiving cavity. The shell is provided with a plug-in interface at the bottom end, the second circuit board is arranged adjacent to the plug-in interface, and the electrical interface on the second circuit board is exposed through the plug-in interface. When other electronic devices such as a wired charger, a headset, and a projection device are plugged into the plug-in interface, electrical connection with the electronic device can be achieved through the electrical interface, and electrical conduction between the electronic device and other electronic devices such as the wired charger is achieved. In addition, the second circuit board is arranged adjacent to the bottom end of the shell, which facilitates heat dissipation of the wireless charging module on the second circuit board and further improves the charging speed. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A structural schematic diagram of an electronic device provided by the embodiment of the present application is shown in the figure;

[0024] Figure 2A charging scenario schematic block diagram of an electronic device and an external charging device provided by an embodiment of the present application;

[0025] Figure 3 An assembly structure schematic block diagram of a main control board, a charging system and a battery in an electronic device in the related art;

[0026] Figure 4 An assembly structure schematic block diagram of a charging system and a battery provided by an embodiment of the present application;

[0027] Figure 5 A circuit connection schematic diagram of a charging system and a battery provided by an embodiment of the present application.

[0028] Legend of reference signs:

[0029] 100 - electronic device;

[0030] 101 - shell; 101a - bottom end; 101b - top end; 1011 - middle frame; 1012 - back cover; 1013 - plug-in interface;

[0031] 102 - camera; 103 - decorative shell; 104 - battery;

[0032] 105 - charging system;

[0033] 10 - wired charging module; 11 - power supply device; 12 - overvoltage protection device;

[0034] 20 - wireless charging module; 30 - first circuit board; 31 - first mounting position; 40 - second circuit board; 50 - electrical interface;

[0035] 60 - charging coil; 61 - coil body; 62 - first lead-out section; 63 - second lead-out section;

[0036] 70 - connection circuit board; 80 - wired reverse charging module; 90 - wireless reverse charging module; 110 - isolation device;

[0037] 200 - wired charger; 300 - wireless charger. DETAILED DESCRIPTION

[0038] The terms used in the embodiment part of the present application are only used for explaining the specific embodiments of the present application, and are not intended to limit the present application.

[0039] The electronic device provided in the embodiments of the present application can include, but is not limited to, a mobile phone, a tablet personal computer, a notebook computer, a camera, an ultra-mobile personal computer (UMPC), a handheld computer, a walkie-talkie, a netbook, a POS machine, a personal digital assistant (PDA), a wearable device, a virtual reality (VR) device (such as a VR glasses, a VR helmet, etc.), an augmented reality (AR) device (such as an AR glasses, an AR helmet, etc.), a vehicle-mounted device, a monitoring camera device, and the like, and can be an electronic device including a battery and having a charging requirement.

[0040] In the embodiments of the present application, the electronic device is taken as a mobile phone as an example. The mobile phone can be a straight phone, or the mobile phone can also be a folding phone. Specifically, the electronic device is taken as a straight phone as an example in the following description.

[0041] Figure 1 A structural schematic diagram of an electronic device provided in the embodiments of the present application is shown in FIG. 1.

[0042] Referring to FIG. 1, Figure 1 As shown in FIG. 1, the electronic device 100 can include a housing 101, which can serve as a main bearing structure of the electronic device 100. The housing 101 can have a receiving cavity (not shown in the figure) therein, which can be used to assemble various structural components of the electronic device 100.

[0043] The electronic device 100 can further include a display screen (not shown in the figure), which can be arranged on one side of the housing 101. The display screen can enclose the above-mentioned receiving cavity and be used to display information and provide an interactive interface for a user. The side of the display screen away from the housing 101 can serve as a display surface of the electronic device 100.

[0044] The display screen may include, but is not limited to, liquid crystal display (LCD) display screens, organic light-emitting diode (OLED) display screens, micro organic light-emitting diode (MOLED) display screens, active-matrix organic light-emitting diode (AMOLED) display screens, light-emitting diode (LED) display screens, mini organic light-emitting diode (Mini LED) display screens, micro organic light-emitting diode (Micro LED) display screens, quantum dot light-emitting diodes (QLED) display screens, etc.

[0045] For example, the housing 101 may include a middle frame 1011 and a rear cover 1012, with the middle frame 1011 surrounding one side of the rear cover 1012. The middle frame 1011 may be an annular frame structure, and the rear cover 1012 may be a rectangular plate structure. Of course, in some other examples, the rear cover 1012 may also be a plate structure in the shape of a square, circle, ellipse, rounded rectangle, etc.

[0046] In the embodiments of this application, for ease of description, as follows: Figure 1 As shown, with the width direction of housing 101 as the x-direction, the length direction of housing 101 as the y-direction, and the thickness direction of housing 101 as the z-direction, the width, length, and thickness directions of electronic device 100 can be consistent with the width, length, and thickness directions of housing 101. It is understood that the length, width, and thickness in the embodiments of this application are for descriptive convenience only and do not imply any limitation on the dimensions; for example, the length can be greater than, equal to, or less than the width.

[0047] The display screen can be located on the side of the mid-frame 1011 facing away from the back cover 1012, that is, along the thickness direction, the display screen and the back cover 1012 are respectively fixed on opposite sides of the mid-frame 1011. The back cover 1012 can serve as the exterior cover of the back of the electronic device 100. In this embodiment, the display surface of the display screen in the electronic device 100 can serve as the front of the electronic device 100, and the side of the back cover 1012 facing away from the display screen can serve as the back of the electronic device 100.

[0048] The back cover 1012 and the middle frame 1011 can be integrally formed, so that the shell 101 is an integral structure. Alternatively, the back cover 1012 and the middle frame 1011 can also be separately formed, and the back cover 1012 and the middle frame 1011 can be fixed and assembled together by welding, clamping, bonding or the like to form the shell 101.

[0049] The electronic device 100 can further include a camera 102 for realizing functions such as photographing. The camera 102 can be at least partially located in the accommodating cavity of the shell 101.

[0050] The number of the camera 102 can be one, or the number of the camera 102 can also be multiple to meet different photographing requirements.

[0051] For example, the camera 102 can be a front camera lens, and the light inlet of the camera 102 can be located on the front surface of the electronic device 100. For example, a through hole can be formed on the display screen and in communication with the accommodating cavity, the camera 102 can be located in the accommodating cavity, and the light inlet of the camera 102 can face the through hole on the display screen, so that light can be irradiated into the camera 102 through the through hole on the display screen.

[0052] Alternatively, in some examples, the display screen can not be provided with a through hole, and the light inlet of the camera 102 can face the display screen, and light can be irradiated into the camera 102 through the display screen.

[0053] For example, the camera 102 can be a rear camera lens, and the light inlet of the camera 102 can be located on the back surface of the electronic device 100. For example, a through hole (not shown in the figure) can be formed on the back cover 1012 and in communication with the accommodating cavity, the camera 102 can be located in the accommodating cavity, and the light inlet of the camera 102 can face the through hole on the back cover 1012, so that light can be irradiated into the camera 102 through the through hole on the back cover 1012.

[0054] Alternatively, in some examples, the camera 102 can be partially located in the accommodating cavity, and part of the camera 102 can protrude out of the accommodating cavity through the through hole on the back cover 1012, so that light can be irradiated into the camera 102.

[0055] The shell 101 can include a bottom end 101a and a top end 101b opposite to each other along the length direction (y direction), and the camera 102 can be disposed closer to the top end 101b of the shell 101, so as to facilitate the use of the camera 102 and the layout of the structures in the accommodating cavity of the electronic device 100.

[0056] In some examples, the electronic device 100 can further include a decorative shell 103, which can be assembled on the back cover 1012, and the decorative shell 103 can be arranged around the through hole on the back cover 1012. The decorative shell 103 can play a decorative and protective role on the through hole and the camera 102, and improve the aesthetics of the back cover 1012 and the electronic device 100.

[0057] For example, part of the decorative shell 103 can be fixedly assembled in the through hole, and at least part of the camera 102 can be located in the space surrounded by the decorative shell 103. Part of the decorative shell 103 can protrude out of the through hole, and part of the decorative shell 103 can be protrudingly arranged relative to the back of the back cover 1012 (the side away from the display screen), so that the thickness of the electronic device 100 at the position of the camera 102 is higher than that at other positions, which can increase the space for accommodating the camera 102 and improve the performance of the camera 102 while meeting the overall thinning requirement.

[0058] Of course, in some other examples, the decorative shell 103 can also be arranged without protruding from the back cover 1012, for example, the side of the decorative shell 103 away from the display screen (the accommodation cavity) can be flush with the side of the back cover 1012 away from the display screen.

[0059] The electronic device 100 can further include a battery (not shown in the figure), which can be arranged in the accommodation cavity of the shell 101, and the battery can supply power to various electronic devices of the electronic device 100, such as the camera 102 and the display screen.

[0060] Referring to Figure 1 As shown, the shell 101 of the electronic device 100 can be provided with a plug-in interface 1013, for example, the plug-in interface 1013 can be provided on the bottom end 101a of the shell 101, and the electronic device 100 can be externally connected to other devices through the plug-in interface 1013.

[0061] For example, the plug-in interface 1013 can expose an electrical interface (not shown in the figure) inside the accommodation cavity of the shell 101, for example, at least part of the electrical interface can extend into the plug-in interface 1013. When other devices are plugged into the plug-in interface 1013, the electrical interface can be electrically connected, thereby realizing electrical signal conduction between the electronic device 100 and the externally connected other devices.

[0062] For example, a wired charger can be externally connected through the plug-in interface 1013, so that the wired charger is in conduction with the electrical interface. The electrical interface can be electrically connected with the battery, thereby realizing charging of the battery of the electronic device 100.

[0063] Other external devices can also be externally connected through the plug-in interface 1013, so that the external devices are in electrical connection with the electrical interface, and data transmission between the electronic device 100 and the external devices is realized, for example, other external devices can be externally connected with earphones, projection devices, etc.

[0064] Figure 2 A schematic block diagram of a charging scenario of a battery of an electronic device and an externally connected charging device is provided for the embodiments of the present application.

[0065] Referring to Figure 2 As shown, the electronic device can also include a charging system 105, which can be assembled in the accommodating cavity of the shell, and the charging system 105 is electrically connected with the battery 104. The electronic device 100 can be matched with a charging device (such as a wired charger 200, a wireless charger 300, etc.) to form an electronic device assembly, and the charging system 105 is used to receive charging input of the charging device to realize charging of the battery 104.

[0066] For example, the charging system 105 can include a wired charging module 10 and the above-mentioned electrical interface 50, the wired charging module 10 can be electrically connected with the electrical interface 50, and the battery 104 can be electrically connected with the wired charging module 10.

[0067] The charging device can include a wired charger 200, which can be matched with the plug-in interface on the shell of the electronic device, and then electrically connected with the electrical interface 50 to realize wired transmission of electric energy. For example, the wired charger 200 can be plugged into the plug-in interface to realize electrical connection with the electrical interface 50, through which the charging input of the wired charger 200 can be received and transmitted to the wired charging module 10, and then wired charging of the battery 104 is realized.

[0068] The charging system 105 can also include a wireless charging module 20 and a charging coil 60, the wireless charging module 20 can be electrically connected with the charging coil 60, and the wireless charging module 20 can also be electrically connected with the battery 104 through the wired charging module 10.

[0069] The outer contour shape of the charging coil 60 can be circular, so that the charging coil 60 has a high inductance to ensure the charging effect. The charging coil 60 is assembled in the accommodating cavity of the shell 101, for example, the charging coil 60 can be arranged on the side of the rear cover 1012 facing the accommodating cavity, or the charging coil 60 can also be arranged on the side of the middle plate facing the rear cover 1012.

[0070] The charging device may include a wireless charger 300, which can cooperate with the electronic device 100 to achieve wireless power transmission. For example, the electronic device 100 is placed on the wireless charger 300, and the side of the back cover 1012 facing away from the receiving cavity can be attached to one side of the wireless charger 300. Electromagnetic induction can be achieved between the charging coil 60 and the wireless charger 300, allowing the charging coil 60 to receive the charging input from the wireless charger 300 and transmit it to the wireless charging module 20, thereby achieving wireless charging of the battery 104.

[0071] The electronic device 100 may also include a main control board (not shown in the figure), on which at least some of the electronic components of the electronic device 100 may be mounted and electrically connected. For example, the main control board may include a server, controller, memory, etc., to control the various electronic components of the electronic device 100. The aforementioned camera 102 may also be mounted on the main control board to facilitate electrical connection between the camera 102 and the server, etc.

[0072] The main control board is located inside the housing cavity. For example, the main control board can be located on the middle frame, and the main control board and the battery 104 can be located on the same side of the middle plate of the middle frame.

[0073] In some examples, the main control board (as shown in the reference) Figure 4 The first circuit board 30 and the battery 104 are arranged side by side in the receiving cavity of the housing. For example, along the length direction (y direction) of the electronic device, the main control board (first circuit board 30) and the battery 104 are arranged sequentially. To facilitate the connection between the main control board and the camera, in the length direction (y direction) of the electronic device, the main control board can be positioned closer to the top 101b of the housing, and at least part of the camera can be mounted on the main control board.

[0074] The battery 104 can be positioned closer to the bottom end 101a of the housing. In the length direction (y direction) of the electronic device, the charging coil 60 can be located below the main control board (on one side closer to the bottom end 101a of the housing), and in the thickness direction (z direction) of the electronic device, the projections of the charging coil 60 and the battery 104 can at least partially overlap.

[0075] It is understood that the structures illustrated in the embodiments of this application do not constitute a specific limitation on the electronic device. In other embodiments of this application, the electronic device may include more or fewer components than illustrated, or combine some components, or split some components, or arrange different components. For example, the electronic device may also include devices such as sensors, communication modules, microphones, and flashlights.

[0076] Figure 3As shown in FIG. 1, an assembly structure of a main control board, a charging system and a battery in an electronic device in the related art is shown in a schematic block diagram.

[0077] As shown in FIG. 2, in a common electronic device, a wireless charging module 401 and a wired charging module 402 are usually arranged on a main control board 403, the main control board 403 and a battery 404 are sequentially arranged along a length direction (y direction) of the electronic device, and an electrical interface 405 is adjacent to a bottom end of a shell of the electronic device. Figure 3

[0078] The electronic device can further include a flexible circuit board 406 and electrical connectors (such as electrical connectors 408a, 408b and 408c). The electrical connectors can be board-to-board connectors (BTB) for example, and can be used to realize electrical connection between circuit boards. One end of the flexible circuit board 406 can be electrically connected to the electrical interface 405 on the side of the bottom end of the shell, and the other end of the flexible circuit board 406 extends to the position of the main control board 403 and can be electrically connected to the wired charging module 402 on the main control board 403 through the electrical connector 408b. The wired charging module 402 can be electrically connected to the battery 404 through the electrical connector 408a and the electrical connector 408b respectively, so as to realize electrical connection of the electrical interface 405, the wired charging module 402 and the battery 404.

[0079] Along the length direction (y direction) of the electronic device, the charging coil 407 is usually arranged below the main control board 403 (closer to the bottom end of the shell). The outgoing end of the charging coil 407 can lead out two electrical connection sections 4071, which can extend to the position of the main control board 403 and be electrically connected to the wireless charging module 401 on the main control board 403 through the electrical connector 408b. The wireless charging module 401 can be electrically connected to the wired charging module 402, and then be electrically connected to the battery 404 through the electrical connector 408a and the electrical connector 408b, so as to realize electrical connection of the charging coil 407, the wireless charging module 401 and the battery 404.

[0080] The wireless charging module 401 and the wired charging module 402 are both concentrated on the main control board 403 and close to the position of the battery 404. When the battery 404 is charged by the charging system, heat concentration phenomenon occurs at the position of the battery 404, which easily triggers the problem of heat current limiting and affects the charging speed.

[0081] ​In addition, the flexible circuit board 406 connected with the electrical interface 405 extends to the position of the main control board 403 above the charging coil 407 to realize connection with the wired charging module 402, and two electrical connection sections 4071 led out by the charging coil 407 also extend to the position of the main control board 403 above to realize connection with the wireless charging module 401. The flexible circuit board 406 and the two electrical connection sections 4071 occupy part of the layout space above the charging coil 407, and the charging coil 407 often forms an upper cutting edge structure to avoid this part of space, that is, the part of the charging coil 407 close to the main control board 403 cannot be well distributed in a circular arc shape, but is distributed along a tangent direction of the circular arc shape, so that the outer contour shape of the charging coil 407 deviates from a circle to a greater extent, which affects the charging compatibility of the charging coil 407.

[0082] Especially, with the pursuit of the camera function of the electronic device by the user, the number and functional requirements of the cameras integrated in the electronic device gradually increase, so that the layout space occupied by the cameras and the decorative pieces is large, and in the length direction (y direction), the layout positions of the cameras, the decorative pieces and the main control board gradually move downward (toward the bottom end of the shell), so that the area of the upper cutting edge structure of the charging coil is larger and larger, and the performance of the charging coil is increasingly affected.

[0083] Based on this, the embodiment of the present application provides a charging system, when the charging system is assembled in the shell of the electronic device, the first circuit board and the second circuit board can be respectively arranged on the two sides of the battery, the first circuit board can be arranged adjacent to the top end of the shell, and the second circuit board can be arranged adjacent to the bottom end of the shell. The wired charging module of the charging system is at least partially arranged on the first circuit board, and the wireless charging module is arranged on the second circuit board, so that the wireless charging module and the wired charging module are distributed in a distributed manner, and the wireless charging module and the wired charging module are respectively integrated on the two circuit boards on the two sides of the battery. Compared with the case that the wireless charging module and the wired charging module are concentrated on the main control board, the heat generated by the wireless charging module can be dispersed to the second circuit board, the effect of dispersing the heat source is achieved, the phenomenon of heat concentration is effectively improved, the problem of over-temperature in the charging process is solved, the triggering of the thermal current limiting is reduced or avoided, and the charging speed is improved. In addition, in the example that the electronic device is placed on the charging base to realize wireless charging, in the process of realizing wireless charging, the bottom end of the shell can be closer to the charging base, so that the wireless charging module is arranged on the second circuit board adjacent to the bottom end of the shell, and the rapid heat dissipation of the wireless charging module adjacent to the bottom end of the shell can be realized by means of the heat dissipation structure in the charging base, the heat dissipation effect of the wireless charging module is improved, and the speed of wireless charging is further improved. In addition, the two connection sections led out by the charging coil are inverted to occupy the space below the charging coil, the upper cutting edge structure above the charging coil is reduced, and the charging compatibility and the charging speed of the charging coil are improved.

[0084] Figure 4A charging system and a battery assembly structure are provided in the embodiments of the present application. In the embodiments of the present application, Figure 4 In the embodiments of the present application, the housing is not shown, and the top end 101b and the bottom end 101a of the housing are only used to show the relative position relationship of the charging system, the battery and the housing when the charging system and the battery are assembled into the housing.

[0085] Referring to Figure 4 As shown in the figure, the charging system 105 includes a first circuit board 30 and a second circuit board 40, and the first circuit board 30 and the second circuit board 40 can be respectively distributed on two sides in the housing accommodating cavity, so that the first circuit board 30 and the second circuit board 40 can be respectively arranged on two sides of the battery 104. For example, along the length direction (y direction) of the electronic device, the first circuit board 30 and the second circuit board 40 can be respectively located on two sides of the battery 104.

[0086] In some examples, in the first circuit board 30 and the second circuit board 40, the first circuit board 30 can be arranged more adjacent to the top end 101b of the electronic device housing, and the second circuit board 40 can be arranged more adjacent to the bottom end 101a of the electronic device housing.

[0087] For example, the first circuit board 30 can be used as the main control board of the electronic device. For example, the first circuit board 30 can have a first mounting position 31, and the first mounting position 31 can be used to assemble the camera 102 of the electronic device.

[0088] It should be noted that in the embodiments of the present application, the specific structure of the first mounting position 31 is not limited, and the first mounting position 31 can be a mounting groove, a mounting hole and the like formed on the first circuit board 30, and the first mounting position 31 can also be a clamping position, a mounting seat and the like arranged on the first circuit board 30. Alternatively, the first mounting position 31 can also be a mounting table (or a mounting area) formed on part of the surface of the first circuit board 30 and the like.

[0089] The second circuit board 40 can be used as other circuit boards arranged in the electronic device housing, for example, the second circuit board 40 can be used as a small board of the electronic device, and has a relatively small size.

[0090] For example, in some examples, the second circuit board 40 can be a small board integrated with a subscriber identity module (SIM) chip, which can also be referred to as a SIM card small board.

[0091] Exemplarily, the second circuit board 40 can have a second mounting position (not shown in the figure) for mounting a SIM card chip. The second circuit board 40 is a SIM card board that implements the SIM card identification function, and no additional circuit board is needed, which is beneficial to simplify the structural design of the charging system 105, reduce the number of structural components in the shell, and facilitate the layout and assembly of the structural components in the shell.

[0092] In the embodiments of the present application, the specific structure of the second mounting position is not limited. For example, the second mounting position can be a mounting groove, a mounting hole, a clamping position, a mounting seat, or the like. Alternatively, the second mounting position can be a mounting table (or a mounting area) formed on part of the surface of the second circuit board 40, or the like.

[0093] The charging system 105 further includes a wired charging module 10, at least part of which is arranged on the first circuit board 30. The wired charging module 10 is electrically connected to the battery 104 and charges the battery 104 through wired transmission.

[0094] In some examples, the wired charging module 10 can be integrated on the first circuit board 30 as a whole, or in some examples, part of the structure of the wired charging module 10 can be integrated on the first circuit board 30, and part of the structure can be integrated on other structural components in the accommodating cavity, for example, part of the structure can be integrated on the second circuit board 40.

[0095] The charging system 105 further includes a wireless charging module 20, which can be electrically connected to the charging coil 60 and the battery 104, respectively, and charges the battery 104 through wireless transmission.

[0096] The wireless charging module 20 is arranged on the second circuit board 40, that is, at least part of the wired charging module 10 of the charging system 105 is arranged on the first circuit board 30, and the wireless charging module 20 is arranged on the second circuit board 40, so that the wireless charging module 20 and the wired charging module 10 are integrated on two circuit boards distributed on both sides of the battery 104, and the wireless charging module 20 and the wired charging module 10 are distributed in a distributed manner. Compared with concentrating the wireless charging module 20 and the wired charging module 10 on the main control board (or the first circuit board 30), the heat generated by the wireless charging module 20 can be dispersed to the second circuit board 40, achieving the effect of dispersing the heat source, effectively improving the heat concentration phenomenon, solving the problem of over-temperature during charging, reducing or avoiding triggering the heat limiting current, and facilitating the improvement of the charging speed.

[0097] In some examples, the electronic device and the wireless charger form an electronic device assembly. The wireless charger may include a charging dock on which the electronic device can be placed when wirelessly charging. Of the top end 101b and the bottom end 101a of the electronic device housing, the bottom end 101a may be positioned closer to the charging dock. For example, in some examples, the bottom end 101a may contact the charging dock, such as the bottom end 101a may be at least partially contained within the charging dock.

[0098] The charging base can be equipped with a heat dissipation structure such as a fan. During the wireless charging process, when the electronic device is placed on the charging base, the bottom 101a of the housing experiences faster heat dissipation thanks to the heat dissipation structure within the charging base. The wireless charging module 20 is positioned on the second circuit board 40 adjacent to the bottom 101a of the housing. During wireless charging, the heat dissipation structure within the charging base enables rapid heat dissipation of the wireless charging module 20, improving the heat dissipation effect and further increasing the wireless charging speed.

[0099] For example, compared to a main control board that integrates the wireless charging module and the wired charging module, the thermal gain of the charging system 105 can be reduced by about 1°C, and the charging speed of the charging system 105 can be increased by about 3% to 5%.

[0100] like Figure 4 As shown, the charging coil 60 of the charging system 105 may be disposed adjacent to the first circuit board 30. For example, along the length direction (y direction) of the electronic device, the charging coil 60 may be located in the middle of the back cover of the housing, and the charging coil 60 may be located below the first circuit board 30.

[0101] To achieve electrical connection between the charging coil 60 and the wireless charging module 20 on the second circuit board 40, the charging coil 60 may include a coil body 61, a first lead-out section 62, and a second lead-out section 63.

[0102] The coil body 61 can be a multi-turn structure formed by coil winding. The first lead-out section 62 and the second lead-out section 63 can serve as connection sections of the charging coil 60, enabling electrical connection between the charging coil 60 and the wireless charging module 20. For example, the first lead-out section 62 and the second lead-out section 63 can be connection terminals extended from the coil body 61, such as metal connection terminals (coins). For instance, the first lead-out section 62 can be a first metal connection terminal (also referred to as coin1), and the second lead-out section 63 can be a second metal connection terminal (also referred to as coin2).

[0103] The first lead-out section 62 and the second lead-out section 63 are electrically connected to the coil body 61 at one end, and extend toward the second circuit board 40, i.e. in the length direction (y direction) of the electronic device. The first lead-out section 62 and the second lead-out section 63 occupy the space between the charging coil 60 and the second circuit board 40.

[0104] The other end of the first lead-out section 62 and the second lead-out section 63 is electrically connected to the wireless charging module 20 on the second circuit board 40, thereby realizing the electrical connection of the charging coil 60, the wireless charging module 20 and the battery 104.

[0105] The first lead-out section 62 and the second lead-out section 63 extend toward the second circuit board 40 below the charging coil 60, thereby realizing the electrical connection with the wireless charging module 20 on the second circuit board 40. The space between the charging coil 60 and the second circuit board 40 is large, and does not affect the layout shape of the charging coil 60.

[0106] Compared with the above-mentioned extension of the connection section of the charging coil to the upper main control board to realize the connection with the wireless charging module, the two connection sections (the first lead-out section 62 and the second lead-out section 63) of the charging coil 60 are inverted, and the first lead-out section 62 and the second lead-out section 63 are led out from the side of the charging coil 60 facing the second circuit board 40, occupying the space below the charging coil 60 (the side adjacent to the second circuit board 40). The first lead-out section 62 and the second lead-out section 63 avoid occupying the layout space above the charging coil 60, reduce the wire width of the two connection sections of the charging coil 60, reduce the upper cutting edge structure area above the charging coil 60, improve the upper cutting edge condition of the charging coil 60, make the outer contour shape of the charging coil 60 closer to a circle, and improve the charging compatibility and charging speed of the charging coil 60.

[0107] For example, compared with the extension of the connection section to the upper main control board to realize the connection with the wireless charging module, the first lead-out section 62 and the second lead-out section 63 of the charging coil 60 are inverted and extended to the second circuit board 40 below the charging coil 60. The upper cutting edge structure of the charging coil 60 can be reduced by about 2mm.

[0108] The other end of the first lead-out section 62 and the second lead-out section 63 can extend to the second circuit board 40 and be electrically connected to the connection wire on the second circuit board 40. The first lead-out section 62 and the second lead-out section 63 can be electrically connected to the wireless charging module 20 through the connection wire on the second circuit board 40, which is convenient for connection.

[0109] The second circuit board 40 is located in the accommodating cavity of the shell, and the second circuit board 40 is arranged adjacent to the bottom end 101a of the shell. The electrical interface 50 of the charging system 105 can be arranged on the second circuit board 40 (see FIG. 2).Figure 5 As shown.

[0110] Continuing to refer to Figure 4 As shown, the wired charging module 10 can include a power supply device 11, which can be disposed on the first circuit board 30, and can be electrically connected with the battery 104, for example, the power supply device 11 can be electrically connected with the battery 104 through the electrical connectors (such as board-to-board connectors, BTB) 120a, 120b respectively. The power supply device 11 can also be electrically connected with the electrical interface (not shown in the figure) on the second circuit board 40. The charging input of the wired charger received by the electrical interface is transmitted to the battery 104 through the power supply device 11, realizing the fast charging of the battery 104.

[0111] For example, the power supply device 11 can include two switching charger (SC) modules, such as a first switching charger module 11a (or SC1) and a second switching charger module 11b (or SC2). The two switching charger modules can be electrically connected with the battery 104 respectively (refer to Figure 5 As shown.

[0112] In some examples, the switching charger module can include a switching charger circuit (SC circuit). The switching charger module can also include a buck chopper (BUCK), a fast charging protocol chip, etc. For example, the fast charging protocol chip can be a PD (power delivery) protocol chip, etc.

[0113] To realize the electrical connection between the electrical interface 50 on the second circuit board 40 and the power supply device 11 on the first circuit board 30, continuing to refer to Figure 4 As shown, the charging system 105 can also include a connection circuit board 70, one end of which can be located on the side of the second circuit board 40.

[0114] One end of the connection circuit board 70 can be electrically connected with the electrical interface on the second circuit board 40, for example, one end of the connection circuit board 70 can be electrically connected with the connection traces, etc. on the second circuit board 40, realizing the electrical connection with the electrical interface on the second circuit board 40 through the connection traces, etc.

[0115] The other end of the connection circuit board 70 can extend to the side of the first circuit board 30. The other end of the connection circuit board 70 can be electrically connected with the power supply device 11 on the first circuit board 30.

[0116] For example, the other end of the connection circuit board 70 can be electrically connected with a connection trace or the like on the first circuit board 30, and the electrical connection with the power supply device 11 on the first circuit board 30 is achieved through the connection trace or the like. That is, in the length direction (y direction), the two ends of the connection circuit board 70 extend to the two sides of the battery 104, respectively, and are distributed across the battery 104 in the length direction (y direction).

[0117] The electrical connection of the electrical interface 50 and the power supply device 11 of the wired charging module 10 is achieved through the connection circuit board 70, and the electrical conduction of the electrical interface 50, the wired charging module 10, and the battery 104 is achieved (see Figure 5 For example, the other end of the connection circuit board 70 can be electrically connected with a connection trace or the like on the first circuit board 30, and the electrical connection with the power supply device 11 on the first circuit board 30 is achieved through the connection trace or the like. That is, in the length direction (y direction), the two ends of the connection circuit board 70 extend to the two sides of the battery 104, respectively, and are distributed across the battery 104 in the length direction (y direction).

[0118] For example, the connection circuit board 70 can be a flexible printed circuit (FPC), which is convenient to extend and distribute on the two sides of the battery 104 in the length direction (y direction), and achieve the electrical connection between the first circuit board 30 and the second circuit board 40.

[0119] Of course, in some other examples, the connection circuit board 70 can also be a rigid circuit board (also referred to as a printed circuit board, PCB).

[0120] In some examples, continuing to refer to Figure 4 As shown in

[0121] For example, one end of the connection circuit board 70 can be electrically connected with a connection trace or the like on the second circuit board 40, and the electrical connection with the wireless charging module 20 on the second circuit board 40 is achieved through the connection trace or the like, so that the wireless charging module 20 can also be electrically connected with the power supply device 11 through the connection circuit board 70, and the electrical conduction of the charging coil 60, the wireless charging module 20, and the battery 104 is achieved.

[0122] That is, the wired charging module 10 achieves the electrical connection with the electrical interface on the second circuit board 40 through the connection circuit board 70, and achieves the wired charging of the battery 104. The wireless charging module 20 achieves the electrical connection with the battery 104 through the connection circuit board 70, and achieves the wireless charging of the battery 104, and the connection circuit board 70 is multiplexed, so that multiple connection circuit boards are not needed to achieve the wired charging and the wireless charging of the battery 104, the path design of the charging system 105 is simplified, the impedance of the charging path is reduced, and the charging performance of the charging system 105 is improved.

[0123] In some examples, the wireless charging module 20 can include a charging receive (RX) unit, such as an RX chip, which can be used to receive alternating current transmitted from the charging coil 60 and convert the alternating current into direct current to be transmitted to the power supply device 11, the battery 104.

[0124] Figure 5 The charging system and the circuit connection schematic diagram of the battery provided by the embodiments of the present application are provided.

[0125] In some examples, referring to Figure 5 As shown, the wired charging module 10 further includes an overvoltage protection device 12, which is electrically connected to the electrical interface 50 and the power supply device 11, respectively, and can play a role in stabilizing the voltage protection of the power supply device 11.

[0126] For example, the overvoltage protection device 12 can be arranged on the second circuit board 40 (see Figure 4 As shown). Referring to Figure 5 As shown, the overvoltage protection device 12 can be connected between the electrical interface 50 and the connection circuit board 70, ensuring the condition of stabilizing the voltage protection of the wired charging module 10. It can avoid the problem of electric leakage caused by the conduction between the connection circuit board 70 and the electrical interface 50 during the wireless charging process, and improve the reliability of the charging system 105.

[0127] Of course, in some other examples, the overvoltage protection device 12 of the wired charging module 10 can also be arranged on the first circuit board 30, and a protection circuit can be added on the second circuit board to achieve the effect of avoiding electric leakage. It should be noted that moving the overvoltage protection device 12 of the wired charging module 10 to the second circuit board 40 does not require the addition of a protection circuit, which is conducive to further simplifying the path design of the charging system 105 and can better reduce the impedance of the path of the charging system 105.

[0128] As shown in Figure 5 The charging system 105 can further include a wireless reverse charging module 90 connected between the battery 104 and the wireless charging module 20, which is used to realize the wireless reverse charging of the electronic device to other external devices, so as to achieve the purpose of reverse charging of other external devices.

[0129] For example, the electronic device can realize wireless reverse charging of other external devices such as mobile phones, earphones, projection devices, etc. through the charging system 105. In some examples, other external devices such as mobile phones, earphones, etc. can be attached to the back cover of the electronic device. The battery 104 can provide charging input for other external devices through the wireless reverse charging module 90, the wireless charging module 20 and the charging coil 60, and realize wireless charging of other external devices.

[0130] The charging system 105 further comprises an isolation device 110, which can serve to isolate the wireless charging circuit and the wireless reverse charging circuit, so as to ensure the reliability of the charging system 105.

[0131] For example, the isolation device 110 can comprise a field effect transistor or the like, for example, the isolation device 110 can comprise an isolation MOS (metal oxide semiconductor) tube.

[0132] In some examples, at least one of the wireless reverse charging module 90 and the isolation device 110 can be arranged on the second circuit board 40, for example Figure 5 As shown in FIG. 4, the wireless reverse charging module 90 and the isolation device 110 can be arranged on the second circuit board 40, respectively. This facilitates electrical connection with the wireless charging module 20, and can also disperse heat generated by the wireless reverse charging module 90 and / or the isolation device 110 to the second circuit board 40, further improving the problem of heat concentration, and further improving the charging speed.

[0133] Of course, in some other examples, only one of the wireless reverse charging module 90 and the isolation device 110 can be arranged on the second circuit board 40, and the other can be arranged on the first circuit board 30, which can also serve to disperse the heat source, and facilitate the improvement of the charging speed. Alternatively, in some examples, the wireless reverse charging module 90 and the isolation device 110 can also be arranged on the first circuit board 30.

[0134] The charging system 105 can further comprise a wired reverse charging module 80 connected between the battery 104 and the electrical interface 50, for realizing wired reverse charging of other external devices by the electronic device 100, so as to achieve the purpose of reverse charging of other external devices.

[0135] For example, other external devices such as mobile phones, earphones, and projection devices can be plugged into the plug interface of the electronic device and electrically connected to the electrical interface 50. The battery 104 can provide charging input for other external devices through the wired reverse charging module 80 and the electrical interface 50, to realize wired charging of other external devices.

[0136] In some examples, the wired reverse charging module 80 can be arranged on the second circuit board 40, which can disperse heat generated by the wired reverse charging module 80 to the second circuit board 40, to further improve the problem of heat concentration, and further improve the charging speed.

[0137] Of course, in some other examples, the wired reverse charging module 80 can also be arranged on the first circuit board 30.

[0138] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mount", "connect", "connection" should be understood broadly, for example, can be fixed connection, can also be indirectly connected through the intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances. The terms "first", "second", "third", "fourth" and the like (if any) are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0139] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A charging system (105) characterized by, The application relates to a charging system (105) comprising: a first circuit board (30); a second circuit board (40), the first circuit board (30) and the second circuit board (40) being arranged on two sides of a battery (104) respectively; a wired charging module (10), the wired charging module (10) being arranged at least partially on the first circuit board (30), and the wired charging module (10) being used for electrically connecting with the battery (104); a wireless charging module (20), the wireless charging module (20) being arranged on the second circuit board (40), and the wireless charging module (20) being used for electrically connecting with the battery (104).

2. The charging system (105) according to claim 1, characterized in that, The application further comprises a charging coil (60), the charging coil (60) being arranged adjacent to the first circuit board (30); the charging coil (60) comprises a first lead-out section (62) and a second lead-out section (63), the first lead-out section (62) and the second lead-out section (63) extending towards the second circuit board (40), and the first lead-out section (62) and the second lead-out section (63) being electrically connected with the wireless charging module (20) respectively.

3. The charging system (105) according to claim 2, characterized in that, The first lead-out section (62) and the second lead-out section (63) extend to the second circuit board (40) and are electrically connected with the second circuit board (40).

4. The charging system (105) according to any one of claims 1-3, characterized by, The application further comprises a connecting circuit board (70); the wired charging module (10) comprises a power supply device (11), the power supply device (11) being arranged on the first circuit board (30), and the power supply device (11) being used for electrically connecting with the battery (104); the second circuit board (40) is further provided with an electrical interface (50), one end of the connecting circuit board (70) being electrically connected with the electrical interface (50), and the other end of the connecting circuit board (70) being electrically connected with the power supply device (11).

5. The charging system (105) according to claim 4, characterized in that, The wireless charging module (20) is electrically connected with the power supply device (11) through the connecting circuit board (70).

6. The charging system (105) according to claim 5, characterized by The wired charging module (10) further comprises an overvoltage protection device (12), the overvoltage protection device (12) being arranged on the second circuit board (40), and the overvoltage protection device (12) being connected between the electrical interface (50) and the connecting circuit board (70).

7. The charging system (105) according to any one of claims 1-3, characterized by, The first circuit board (30) is provided with a first mounting position (31), and the first mounting position (31) is used for assembling a camera (102).

8. The charging system (105) according to any one of claims 1-3, characterized by, The second circuit board (40) is provided with a second mounting position, and the second mounting position is used for assembling a SIM card chip.

9. An electronic device (100), characterized by The application relates to a charging system (105) comprising:

10. The electronic device (100) according to claim 9, characterized by a battery (104) and the charging system (105) according to any one of claims 1-8, the wireless charging module (20) and the wired charging module (10) of the charging system (105) being electrically connected with the battery (104) respectively. The application further comprises a shell (101), the shell (101) being internally provided with a containing cavity, and the battery (104) and the charging system (105) being arranged in the containing cavity. The bottom end (101a) of the shell (101) is provided with a plug interface (1013), and a second circuit board (40) of the charging system (105) is arranged adjacent to the plug interface (1013), and an electrical interface (50) on the second circuit board (40) is exposed through the plug interface (1013).

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