Battery assembly and electronic device

Abstract

The present application provides a battery assembly and an electronic device, which relates to the field of battery technology, and includes: a battery cell body, a pole ear, and an adapter plate including a first surface and a second surface in the thickness direction. The first end of the pole ear is connected to an end face of the battery cell body, and the second end of the pole ear is bent to the first surface of the adapter plate and electrically connected to the first surface of the adapter plate; the second surface of the adapter plate faces the above-mentioned end face of the battery cell body and is connected to the above-mentioned end face of the battery cell body. That is, the adapter plate is arranged on the end face of the battery cell body along its thickness direction. The thickness of the adapter plate is relatively thin, so that the adapter plate occupies a smaller dimension in the arrangement direction of the adapter plate and the battery cell body of the battery assembly, so that the dimension of the battery cell body in this arrangement direction can be longer, thereby making the volume of the battery cell body larger, increasing the capacity of the battery cell body, that is, increasing the capacity of the battery assembly. In this way, it helps to improve the battery life of the electronic device using the battery assembly.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of battery technology, and in particular to a battery assembly and an electronic device. Background Art

[0002] The battery assembly is an important component of electronic devices, which is used to store electrical energy and provide electrical energy to the electronic devices. Generally, the electronic devices include a battery compartment for accommodating the battery assembly. The storage space of the battery compartment in an electronic device is fixed, so the volume of the battery assembly installed in the electronic device is fixed. At present, the capacity of battery assemblies of the same volume is small, resulting in a shorter battery life of the electronic device using the battery assembly, which affects the user experience. Summary of the invention

[0003] The present application provides a battery assembly and an electronic device, which are used to increase the capacity of the battery assembly without increasing the volume of the battery assembly, thereby helping to improve the battery life of the electronic device using the battery assembly.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In a first aspect, a battery assembly is provided, the battery assembly comprising: a battery cell body, a first pole lug, a second pole lug, and an adapter plate including a first surface and a second surface in a thickness direction. The first end of the first pole lug and the first end of the second pole lug are connected to an end surface of the battery cell body, the second end of the first pole lug and the second end of the second pole lug are bent to the first surface of the adapter plate and electrically connected to the first surface of the adapter plate; the second surface of the adapter plate faces the above end surface of the battery cell body and is connected to the above end surface of the battery cell body.

[0006] The battery assembly provided by the present application adopts an adapter plate instead of a battery protection plate, and improves the shape of the pole ear arranged on the end face of the battery cell body. Specifically, the adapter plate includes a first surface and a second surface opposite to each other in the thickness direction, the first end of the pole ear is connected to the end face of the battery cell body, the second end of the pole ear is bent to the first surface of the adapter plate, and is electrically connected to the first surface of the adapter plate, so that the battery cell body is electrically connected to the adapter plate, and the second surface of the adapter plate faces the end face of the battery cell body and is connected to the end face of the battery cell body. In other words, the adapter plate is arranged on the end face of the battery cell body along the thickness direction of the adapter plate. Compared with the width of the adapter plate, the thickness of the adapter plate is shorter, which makes the size of the adapter plate in the arrangement direction of the adapter plate and the battery cell body shorter, so that the size of the battery cell body in the arrangement direction of the adapter plate and the battery cell body can be lengthened. When the other dimensions of the battery cell body remain unchanged, the volume of the battery cell body increases because the size of the battery cell body in the thickness direction of the adapter plate increases. The increase in the volume of the battery cell body can increase the capacity of the battery cell body, that is, increase the capacity of the battery assembly, thereby increasing the battery life of the electronic device using the battery assembly, thereby improving the user experience when using the electronic device.

[0007] In a possible implementation of the first aspect, the adapter plate includes: an adapter plate body, a first pad, and a second pad. The adapter plate body includes a first surface and a second surface opposite to each other in a thickness direction; the first pad and the second pad are both arranged on the first surface of the adapter plate body, and the first pad is electrically connected to the second end of the first pole lug, and the second pad is electrically connected to the second end of the second pole lug.

[0008] In another possible implementation of the first aspect, the adapter board further includes at least one connector, each of which is connected to the adapter board body, and each of which is electrically connected to at least one of the first pad and the second pad.

[0009] In another possible implementation of the first aspect, the adapter board further includes at least one connection portion, wherein a first end of each connection portion of the at least one connection portion is connected to a side surface of the adapter board body, and a second end of each connection portion is connected to a connector.

[0010] In another possible implementation of the first aspect, the first pole tab and the second pole tab in the battery assembly are arranged in a first direction. The first direction is parallel to the end surface of the battery cell body and intersects with the thickness direction of the battery cell body. The battery assembly may include multiple connecting parts. The positional relationship between the multiple connecting parts and the first pole tab and the second pole tab may be any of the following:

[0011] At least one connection portion is located on a side of the first pole ear away from the second pole ear, and at least one connection portion is located on a side of the second pole ear away from the first pole ear; at least one connection portion is located between the first pole ear and the second pole ear; at least one connection portion is located on a side of the first pole ear away from the second pole ear; at least one connection portion is located on a side of the second pole ear away from the first pole ear.

[0012] In another possible implementation of the first aspect, the battery assembly further includes a first top seal. The first top seal includes a first portion and a second portion that are connected. The first portion of the first top seal is attached to a surface of the battery cell body in the thickness direction, and the second portion of the first top seal is attached to the end surface of the battery cell body. In this way, the first top seal no longer protrudes from the end surface of the battery cell body and no longer occupies space in the length direction of the battery assembly.

[0013] The first end of the first pole lug and the first end of the second pole lug are both arranged between the second part of the first top seal and the end surface of the battery cell body. The adapter plate is arranged on a side of the second part of the first top seal away from the battery cell body.

[0014] In another possible implementation of the first aspect, a portion of the first pole lug close to the first end of the first pole lug and a portion of the second pole lug close to the first end of the second pole lug are both fixed between the second portion of the first top seal and the end surface of the cell body. At the same time, a portion of the first pole lug close to the second end of the first pole lug and a portion of the second pole lug close to the second end of the second pole lug are bent toward one side of the first portion of the first top seal.

[0015] In another possible implementation of the first aspect, the battery assembly further includes insulating glue that can bond a portion of the first pole lug close to the first end of the first pole lug and a portion of the second pole lug close to the first end of the second pole lug to the end surface of the battery cell body.

[0016] In another possible implementation of the first aspect, the battery cell body includes a first side surface and a second side surface, wherein the first side surface and the second side surface are respectively connected to two sides of the end surface of the battery cell body.

[0017] The battery assembly also includes a second top seal and a third top seal. A portion of the second top seal is attached to the first side surface of the battery cell body, and another portion of the second top seal is attached to the above end surface of the battery cell body. A portion of the third top seal is attached to the second side surface of the battery cell body, and another portion of the third top seal is attached to the above end surface of the battery cell body. In this way, the second top seal and the third top seal no longer protrude from the end surface of the battery cell body, and no longer occupy space in the length direction of the battery assembly.

[0018] In another possible implementation of the first aspect, another portion of the second top seal may be attached to: a surface of the adapter plate that is away from the edge portion of the first side surface of the battery cell body and close to the battery cell body. Another portion of the third top seal may be attached to: a surface of the adapter plate that is away from the edge portion of the second side surface of the battery cell body and close to the battery cell body.

[0019] In another possible implementation of the first aspect, the battery assembly may include at least two pairs of pole tabs and two adapter plates, each pair of pole tabs including a first pole tab and a second pole tab. The battery cell body includes a first end face and a second end face that are opposite to each other.

[0020] The second surface of one adapter plate faces the first end surface of the battery cell body and is connected to the first end surface of the battery cell body; the second surface of another adapter plate faces the second end surface of the battery cell body and is connected to the second end surface of the battery cell body. At least one pair of tabs is connected to the first end surface of the battery cell body, and at least one pair of tabs is connected to the second end surface of the battery cell body.

[0021] At least one pair of tabs are provided at opposite ends of the battery assembly, so that both opposite ends of the battery assembly have electrodes. In this way, during the charging process, the battery assembly can be charged simultaneously through the electrodes at the opposite ends of the battery assembly, which can improve the charging efficiency.

[0022] In a second aspect, the present application provides an electronic device. The electronic device includes: a charging circuit, a protection circuit, a load, a charging interface, and a battery assembly as described in any one of the first aspects above. The battery assembly is connected to the charging interface through the charging circuit and the protection circuit. In this way, the battery assembly can receive a charging current provided by an external power source through the charging interface, thereby storing electrical energy. In addition, the battery assembly is also connected to the load for supplying power to the load.

[0023] In the battery assembly provided in any one of the first aspects, the volume of the battery cell body can be larger, so that the capacity of the battery cell body can be larger, and thus the capacity of the battery assembly can be larger. Based on this, the electronic device using the battery assembly in the present application can have a longer battery life, thereby improving the user experience when using the electronic device.

[0024] In a possible implementation of the second aspect, the electronic device further includes a main board and a sub-board. The main board may be located at a first end of the battery assembly, and the sub-board may be located at a second end of the battery assembly, and the first end of the battery assembly and the second end of the battery assembly are opposite ends of the battery assembly. Part of the charging circuit, the protection circuit, the load, and the charging interface may be arranged on the main board, and the other part may be arranged on the sub-board.

[0025] Specifically, the charging interface can be set on the sub-board. A part of the load can be set on the main board, and another part of the load can be set on the sub-board; or, all the loads are set on the main board. A part of the charging circuit can be set on the main board, and another part of the charging circuit can be set on the sub-board, and a part of the protection circuit can be set on the main board, and another part of the protection circuit can be set on the sub-board; or, both the charging circuit and the protection circuit are set on the main board; or, both the charging circuit and the protection circuit are set on the sub-board.

[0026] In another possible implementation of the second aspect, the first end of the battery assembly includes a first electrode and a second electrode, and the charging circuit and the protection circuit are both arranged on the mainboard, wherein the first electrode is electrically connected to the first electrode tab at the first end of the battery assembly, and the second electrode is electrically connected to the second electrode tab at the first end of the battery assembly.

[0027] The electronic device may further include a main-sub-board connector. The first electrode is connected to the charging interface through the charging circuit, the protection circuit and the main-sub-board connector, and the second electrode is connected to the charging interface through the main-sub-board connector.

[0028] In another possible implementation of the second aspect, all loads in the electronic device are arranged on the mainboard. In this way, the first end of the load is connected to the first electrode, and the second end of the load is connected to the second electrode. Arranging all loads on the mainboard can make the layout of the loads in the electronic device more concentrated.

[0029] In another possible implementation of the second aspect, the load in the electronic device may include a first load and a second load. The first load is arranged on the main board, and the first end of the first load is connected to the first electrode, and the second end of the first load is connected to the second electrode; the second load is arranged on the sub-board, and the first end of the second load is connected to the first electrode through the main-sub-board connector, and the second end of the second load is connected to the second electrode through the main-sub-board connector.

[0030] By placing a portion of the load in the sub-board and the other portion in the main board, the layout of the modules in the electronic device can be made more reasonable, so that the weight of the electronic device in the length direction of the electronic device is more even and does not appear to be "top-heavy".

[0031] In another possible implementation of the second aspect, the second end of the battery assembly includes a third electrode and a fourth electrode, and the charging circuit and the protection circuit are both arranged on the sub-board. The third electrode is electrically connected to the first pole ear at the second end of the battery assembly, and the fourth electrode is electrically connected to the second pole ear at the second end of the battery assembly. The third electrode is connected to the charging interface through the charging circuit and the protection circuit, and the fourth electrode is connected to the charging interface.

[0032] The charging interface, charging circuit and protection circuit are all arranged on the sub-board, so that the entire charging circuit is located on the sub-board, shortening the charging path, so that the electrical energy in the charging process can be more effectively converted into the chemical energy of the battery components, reducing the heat energy loss caused by the resistance of the charging circuit during the conversion process, greatly improving the charging efficiency, and then improving the charging speed.

[0033] In addition, since the entire charging circuit is located in the sub-board, the main-sub-board connector for connecting the main board and the sub-board is no longer needed in the electronic device, which not only reduces the cost, but also increases the thickness of the battery cell body included in the improved battery assembly while the accommodation space of the battery assembly remains unchanged. In other words, the thickness of the battery cell body can be thicker, so the volume of the battery cell body can be larger, so that the capacity of the battery cell body can be larger, thereby making the capacity of the battery assembly larger, and further improving the battery life of the electronic device using the battery assembly.

[0034] In another possible implementation of the second aspect, the first end of the battery assembly includes a first electrode and a second electrode. The first electrode is electrically connected to a first electrode tab at the first end of the battery assembly, and the second electrode is electrically connected to a second electrode tab at the first end of the battery assembly. The load includes a first load and a second load.

[0035] Among them, the first load is set on the main board, and the first end of the first load is connected to the first electrode, and the second end of the first load is connected to the second electrode; the second load is set on the sub-board, and the first end of the second load is connected to the third electrode, and the second end of the second load is connected to the fourth electrode.

[0036] The discharge circuit corresponding to the first load is located on the main board, and the discharge circuit corresponding to the second load is located on the auxiliary board. In this way, the discharge paths corresponding to each load are shortened, the power loss on the discharge path is reduced, and the power utilization efficiency is improved.

[0037] In another possible implementation of the second aspect, the first end of the battery assembly includes a first electrode and a second electrode, and the second end of the battery assembly includes a third electrode and a fourth electrode. The first electrode is electrically connected to the first electrode tab at the first end of the battery assembly, the second electrode is electrically connected to the second electrode tab at the first end of the battery assembly, the third electrode is electrically connected to the first electrode tab at the second end of the battery assembly, and the fourth electrode is electrically connected to the second electrode tab at the second end of the battery assembly.

[0038] The charging circuit includes a first charging subcircuit and a second charging subcircuit, the first charging subcircuit is arranged on the main board, and the second charging subcircuit is arranged on the auxiliary board. The protection circuit includes a first protection subcircuit and a second protection subcircuit, the first protection subcircuit is arranged on the main board, and the second protection subcircuit is arranged on the auxiliary board.

[0039] The electronic device also includes a main-sub-board connector. The first electrode is connected to the charging interface through the first charging subcircuit, the first protection subcircuit, the main-sub-board connector, and the second charging subcircuit, and the second electrode is connected to the charging interface through the main-sub-board connector. The third electrode is connected to the charging interface through the second charging subcircuit and the second protection subcircuit, and the fourth electrode is connected to the charging interface.

[0040] One charging circuit is laid out on the main board, and the other charging circuit is laid out on the sub-board. In this way, before the constant voltage charging stage, the improved battery assembly can be charged through two pairs of electrodes in parallel, that is, the charging circuit on the main board and the charging circuit on the sub-board work at the same time. Based on this, the problem of reducing the charging speed of electronic equipment due to excessively high local temperature during the charging process can be effectively alleviated.

[0041] In another possible implementation of the second aspect, the first charging subcircuit includes a first charging chip and a second charging chip connected in parallel. The first charging chip is a charging chip having at least one of a step-down and a step-up function, and the second charging chip is a charging chip having a charging protocol negotiation function and a charging function. The second charging subcircuit includes a first protection switch and a third charging chip connected in series, and the third charging chip is a charging chip having a charging protocol negotiation function and a charging function. The first electrode is connected to the charging interface through the first charging subcircuit, the first protection subcircuit, the main and sub-board connectors, and the first protection switch.

[0042] In another possible implementation of the second aspect, the load includes a first load and a second load, wherein the first load is disposed on the main board, and a first end of the first load is connected to the first electrode, and a second end of the first load is connected to the second electrode; and the second load is disposed on the sub-board, and a first end of the second load is connected to the third electrode, and a second end of the second load is connected to the fourth electrode.

[0043] The first load is set on the main board, and the second load is set on the sub-board, which can not only make the layout of the electronic equipment more reasonable, but also shorten the discharge path corresponding to each load, reduce the power loss on the discharge path, and improve the power utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A schematic diagram of the structure of an electronic device provided by an embodiment;

[0045] Figure 2 A schematic diagram of a circuit structure of an electronic device provided by an embodiment;

[0046] Figure 3 One of the structural schematic diagrams of an electronic device provided in an embodiment of the present application;

[0047] Figure 4One of the structural schematic diagrams of a battery assembly provided in an embodiment of the present application;

[0048] Figure 5 A schematic diagram of the structure of an adapter board provided in an embodiment of the present application;

[0049] Figure 6 A second structural schematic diagram of a battery assembly provided in an embodiment of the present application;

[0050] Figure 7 A schematic diagram for comparing the structure of a battery assembly provided in an embodiment of the present application;

[0051] Figure 8 One of the circuit structure diagrams of an electronic device provided in an embodiment of the present application;

[0052] Fig. 9 One of the current flow diagrams provided in the embodiment of the present application;

[0053] Fig.10 A second current flow diagram provided in an embodiment of the present application;

[0054] Fig.11 A second schematic diagram of a circuit structure of an electronic device provided in an embodiment of the present application;

[0055] Fig.12 A third current flow diagram provided in an embodiment of the present application;

[0056] Fig.13 A third structural schematic diagram of a battery assembly provided in an embodiment of the present application;

[0057] Fig.14 A second structural diagram of an electronic device provided in an embodiment of the present application;

[0058] Fig.15 A third schematic diagram of a circuit structure of an electronic device provided in an embodiment of the present application;

[0059] Fig.16 A fourth current flow diagram provided in an embodiment of the present application;

[0060] Fig.17 A third structural diagram of an electronic device provided in an embodiment of the present application;

[0061] Fig.18 A fourth schematic diagram of a circuit structure of an electronic device provided in an embodiment of the present application;

[0062] Fig.19 This is a fifth current flow diagram provided in an embodiment of the present application. DETAILED DESCRIPTION

[0063] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0064] The terms "first", "second", etc. involved in the embodiments of the present application are only used to distinguish features of the same type and cannot be understood as indicating relative importance, quantity, order, etc.

[0065] The terms "exemplary" or "for example" and the like in the embodiments of the present application are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the related concepts in a specific way.

[0066] The terms "coupling" and "connection" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0067] The embodiment of the present application provides an electronic device. The electronic device is a fixed terminal or a mobile terminal having a battery assembly or powered by a battery assembly. The electronic device can be deployed on land (for example, indoors or outdoors, handheld or vehicle-mounted, etc.), on the water (for example, a ship, etc.), or in the air (for example, an airplane, a balloon, etc.). The electronic device can be called user equipment (UE), access terminal, terminal unit, subscriber unit (subscriberunit), terminal station, mobile station (MS), mobile station, terminal agent or terminal device, etc. For example, the electronic device can be a tablet computer, a laptop computer, an ultra-mobile personal computer (UMPC), a handheld computer, a touch TV, a walkie-talkie, a netbook, a POS machine, a personal digital assistant (PDA), a wearable device, a virtual reality device, a mobile phone, etc. The embodiment of the present application does not limit the specific type and structure of the electronic device.

[0068] Figure 1 A schematic structural diagram of an electronic device provided by an embodiment is shown.

[0069] In one embodiment, if Figure 1As shown, the electronic device is a mobile phone as an example. The width direction of the mobile phone 100 is the X direction, and the length direction of the mobile phone 100 is the Y direction. The mobile phone 100 includes a housing 110, and a main board 120, a battery assembly 130, a sub-board 140, a main-sub-board connector 150 and a charging interface 160 located inside the housing 110. Along the Y direction of the mobile phone 100, the main board 120, the battery assembly 130 and the sub-board 140 are arranged in sequence from top to bottom. The battery assembly 130 is connected to the main board 120 and the sub-board 140 to supply power to the main board 120 and the sub-board 140. The main-sub-board connector 150 connects the main board 120 and the sub-board 140 to provide a transmission path for signals (such as current signals, etc.) that need to be transmitted between the main board 120 and the sub-board 140. The charging interface 160 is arranged on the sub-board 140. An external power source can be connected to the charging interface 160 through a power adapter to charge the battery assembly 130.

[0070] The material of the housing 110 may be any one of metal, ceramic, glass and the like.

[0071] Among them, the battery assembly 130 can be a rechargeable battery assembly, for example, the battery assembly 130 can be any one of a lead-acid battery, a nickel-metal hydride battery, a sodium-sulfur battery, a flow battery, a supercapacitor, a lithium battery or a flexible battery.

[0072] The battery assembly 130 may include one or more batteries. When the battery assembly 130 includes multiple batteries, the multiple batteries may be connected in series, in parallel, or in series and parallel. This article takes the battery assembly 130 including one battery as an example for description.

[0073] The main-sub-board connector 150 mentioned in this article may be a connector with a conductive function, such as a flexible printed circuit (FPC).

[0074] The charging interface 160 may be a universal serial bus (USB) interface, such as a mini USB interface, a micro USB interface, a Type-A USB interface, a Type-B USB interface, and a Type-C USB interface.

[0075] Furthermore, the mobile phone 100 may also include: a processor, a charging circuit and a load. The processor is connected to the charging circuit and the load, and the charging circuit is connected to the charging interface 160 and the battery assembly 130, and the battery assembly 130 is connected to the load. During the charging process, the charging current provided by the external power supply flows to the battery assembly 130 through the charging interface 160, the main and sub-board connector 150, and the charging circuit to charge the battery assembly 130. During the discharge process, the battery assembly 130 can supply power to the load.

[0076] The processor may include one or more processing units, for example, the processor may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processing unit (CPU), an application processor (AP), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), a modem processor, a graphics processor (GPU), an image signal processor (ISP), a controller, a video codec, a baseband processor, and a neural network processing unit (NPU). Different processing units may be independent devices or integrated into one or more processors. For example, the processor may be an application processor AP. Alternatively, the above processor may be integrated into a system on chip (SoC). Alternatively, the above processor may be integrated into an integrated circuit (IC) chip. The processor may include an analog front end (AFE) and a micro-controller unit (MCU) in an IC chip.

[0077] In one example, the processor, the charging circuit, and the load may be disposed on the mainboard 120 .

[0078] In another example, the processor and the charging circuit can be arranged on the main board 120, a part of the load (which can be called the first load) is arranged on the main board, and another part of the load (which can be called the second load) is arranged on the sub-board. In this case, both the first load and the second load are connected to the processor, and both the first load and the second load are connected to the battery assembly. During the discharge process, the battery assembly 130 can directly supply power to the first load, and supply power to the second load through the main and sub-board connector 150.

[0079] It should be understood that the second load and the first load are different load modules in the electronic device. The load module may include but is not limited to a communication module, an audio module, a sensor module, a camera, a motor, a button, etc.

[0080] Combined with the following Figure 1 and Figure 2 The specific structure of the battery assembly involved in the above embodiments is introduced.

[0081] Figure 2 A schematic structural diagram of a battery assembly provided by an embodiment is shown.

[0082] For example, Figure 1 and Figure 2 As shown, the battery assembly 130 in the above embodiment includes a battery cell 210, a battery protection board 220 and L connectors 230, where L is a positive integer. The battery cell 210 is used to store electrical energy and supply power to the electronic device. Exemplarily, the battery cell 210 may be a soft-pack battery cell. At this time, the battery cell 210 may include a battery cell body 211, a positive electrode ear 212, a negative electrode ear 213 and three top seals 214. Among them, the first end of the positive electrode ear 212 and the first end of the negative electrode ear 213 are arranged on the surface of the first end of the battery cell body 211 (which can be referred to as the first end face), and the positive electrode ear 212 and the negative electrode ear 213 are perpendicular to the first end face of the battery cell body 211. The first end of the battery cell body 211 refers to the end of the battery cell body 211 close to the main board 120. The three top seals 214 are located at the first end of the battery cell body 211, and are perpendicular to the first end face of the battery cell body 211 to form a semi-enclosed top seal area. The positive electrode tab 212 and the negative electrode tab 213 are located in the top sealing area.

[0083] The battery protection board 220 includes a protection circuit for protecting the battery cell 210 during the charging and discharging process. Along the width direction of the battery protection board 220, the battery protection board 220 includes a first end and a second end opposite to each other. The first end of the battery protection board 220 is located in the top sealing area and is connected to the positive electrode ear 212 and the negative electrode ear 213; the second end of the battery protection board 220 protrudes from the top sealing area, and the second end of the battery protection board 220 is connected to the main board 120 through L connectors 230.

[0084] The connector 230 may be a connector having a conductive function, such as a board to board (BTB) connector, which is not limited herein.

[0085] The length direction of the battery protection plate 220 is consistent with the width direction of the battery cell body 211, the width direction of the battery protection plate 220 is consistent with the length direction of the battery cell body 211, and the thickness direction of the battery protection plate 220 is consistent with the thickness direction of the battery cell body 211. In one example, the width direction of the battery cell body 211 is the X direction, the length direction of the battery cell body 211 is the Y direction, and the thickness direction of the battery cell body 211 is the Z direction.

[0086] Combination Figure 1 and Figure 2 It can be seen that the size of the storage space of the battery compartment for accommodating the battery assembly 130 depends on the distance between the main board 120 and the sub-board 140 (i.e., the length of the battery compartment), the width of the electronic device (i.e., the width of the battery compartment), and the thickness of the electronic device (i.e., the thickness of the battery compartment). For an electronic device, the length, width, and thickness of the battery compartment are fixed, so the volume of the battery assembly 130 that can be installed in the electronic device is fixed. The capacity of the battery assembly 130 depends on the capacity of the battery cell body 211, and the capacity of the battery cell body 211 is related to the volume of the battery cell body 211. Generally, the larger the volume of the battery cell body 211, the larger the capacity of the battery cell body 211.

[0087] In the above embodiment, when the length of the battery compartment is fixed, since the battery protection plate 220 protrudes from the top sealing area in the Y direction, it occupies more space in the Y direction, resulting in the battery body 211 being shorter in the Y direction, that is, the length of the battery body 211 is shorter, while the width and thickness of the battery body 211 are fixed, so the volume of the battery body 211 is smaller, resulting in a smaller capacity of the battery body 211. The smaller capacity of the battery body 211 will shorten the battery life of the electronic device, thereby affecting the user experience.

[0088] In order to solve the above problems, an embodiment of the present application provides an electronic device, which improves the structure of the battery assembly so that the capacity of the battery assembly is increased without increasing the volume of the battery assembly, thereby helping to improve the battery life of the electronic device using the battery assembly. In the improved battery assembly, an adapter plate is used instead of the battery protection plate, and the shape of the pole ear arranged on the end face of the battery cell body is improved. Specifically, the adapter plate includes a first surface and a second surface opposite to each other in the thickness direction, the first end of the pole ear is connected to the end face of the battery cell body, the second end of the pole ear is bent to the first surface of the adapter plate, and is electrically connected to the first surface of the adapter plate, so that the battery cell body is electrically connected to the adapter plate, and the second surface of the adapter plate faces the end face of the battery cell body and is connected to the end face of the battery cell body. In other words, the adapter plate is arranged on the end face of the battery cell body along the thickness direction of the adapter plate. Compared to the width of the adapter plate, the thickness of the adapter plate is shorter, which makes the size of the adapter plate in the arrangement direction of the adapter plate and the battery body shorter, so that the size of the battery body in the arrangement direction of the adapter plate and the battery body can be longer. When other dimensions of the battery body remain unchanged, the volume of the battery body increases because the size of the battery body in the thickness direction of the adapter plate increases. The increase in the volume of the battery body can increase the capacity of the battery body, that is, increase the capacity of the battery assembly, thereby increasing the battery life of the electronic device using the battery assembly, and thus improving the user experience when using the electronic device.

[0089] Combined with the following Figure 3-Figure 7 The specific structures of the electronic device and battery assembly provided in the embodiments of the present application are introduced.

[0090] Figure 3 One of the structural schematic diagrams of an electronic device provided in an embodiment of the present application is shown.

[0091] In one embodiment, if Figure 3 As shown, the electronic device provided in the embodiment of the present application may include: a housing 110, a main board 120, an improved battery assembly 300, a sub-board 140, a main and sub-board connector 150, a charging interface 160, a charging circuit, a protection circuit and a load (including a first load and a second load). Along the Y direction of the electronic device, the main board 120, the improved battery assembly 300 and the sub-board 140 are arranged in sequence from top to bottom. The main and sub-board connector 150 connects the main board 120 and the sub-board 140 to provide a transmission path for signals (such as current signals, etc.) that need to be transmitted between the main board 120 and the sub-board 140. The charging interface 160 is arranged on the sub-board 140. The external power supply can be connected to the charging interface 160 through a power adapter, and the charging interface 160 is connected to the improved battery assembly 300 through a charging circuit and a protection circuit for charging the improved battery assembly 300. The improved battery assembly 300 is also connected to the load for supplying power to the load.

[0092] Among them, the first load is set on the main board, and the second load is set on the sub-board; or, the first load and the second load are both set on the main board. A part of the charging circuit (which can be called the first charging sub-circuit) is set on the main board, and another part of the charging circuit (which can be called the second charging sub-circuit) is set on the sub-board, and a part of the protection circuit (which can be called the first protection sub-circuit) is set on the main board, and another part of the protection circuit (which can be called the second protection sub-circuit) is set on the sub-board; or, the charging circuit and the protection circuit are both set on the main board; or, the charging circuit and the protection circuit are both set on the sub-board. The following is an introduction in conjunction with specific embodiments.

[0093] It should be understood that the electronic device provided in the embodiment of the present application may also include a processor, and the processor is directly or indirectly connected to the charging circuit, the load, the charging interface and the battery assembly. The processor and the connection relationship between the processor and the various components in the electronic device are not shown in the figures involved in this article.

[0094] Figure 4 One of the structural schematic diagrams of a battery assembly provided in an embodiment of the present application is shown.

[0095] In one embodiment, if Figure 4 As shown, the improved battery assembly 300 in the embodiment of the present application includes: an improved battery cell 410 , and a transfer plate 420 connected to the improved battery cell 410 .

[0096] In an example, the improved battery cell 410 includes: a battery cell body 211 and at least one pair of pole tabs, each pair of pole tabs may include a first pole tab 411 and a second pole tab 412 .

[0097] The cell body 211 may include a first end and a second end opposite to each other in the length direction, a third end and a fourth end opposite to each other in the width direction, and a fifth end and a sixth end opposite to each other in the thickness direction.

[0098] The surface of the first end of the cell body 211 may be referred to as a first end surface, and the surface of the second end of the cell body 211 may be referred to as a second end surface. The surface of the third end of the cell body 211 may be referred to as a first side surface, and the surface of the fourth end of the cell body 211 may be referred to as a second side surface. The surface of the fifth end of the cell body 211 may be referred to as a first surface, and the surface of the sixth end of the cell body 211 may be referred to as a second surface.

[0099] It can be seen that the first side surface, the second side surface, the first surface and the second surface of the cell body 211 can be connected between the first end surface and the second end surface of the cell body 211, and the first side surface and the second side surface of the cell body 211 are respectively connected to the two sides of the first end surface (or the second end surface) of the cell body 211, and the first surface and the second surface of the cell body 211 are respectively connected to the two sides of the first end surface (or the second end surface) of the cell body 211.

[0100] The first pole lug 411 and the second pole lug 412 in each pair of pole lugs may be arranged at intervals along a first direction. Specifically, the first direction is parallel to the first end surface and the second end surface of the cell body 211 and intersects with the thickness direction of the cell body 211. For example, the first direction is the width direction of the cell body 211.

[0101] At least one pair of pole lugs may be disposed at the first end of the cell body 211. Specifically, the first end of the first pole lug 411 and the first end of the second pole lug 412 in each pair of pole lugs are connected to the first end surface of the cell body 211, and the second end of the first pole lug 411 and the second end of the second pole lug 412 are bent to the first end surface of the cell body 211. That is, the first end of the first pole lug 411 and the second end of the first pole lug 411 are in one curved surface, and the first end of the second pole lug 412 and the second end of the second pole lug 412 are in another curved surface. For example, the first pole lug 411 is U-shaped or C-shaped, and the second pole lug 412 is U-shaped or C-shaped. In this way, the first pole lug 411 and the second pole lug 412 form a first gap with the end surface of the first end of the cell body 211.

[0102] The first electrode tab 411 may be a positive electrode tab, and the second electrode tab 412 may be a negative electrode tab; or, the first electrode tab 411 may be a negative electrode tab, and the second electrode tab 412 may be a positive electrode tab.

[0103] Figure 4 The improved battery cell 410 includes a pair of tabs disposed at the first end of the battery cell body 211 as an example. When the improved battery cell 410 includes two or more pairs of tabs disposed at the first end of the battery cell body 211, all first tabs 411 can be connected in parallel, and all second tabs 412 can be connected in parallel. The multiple tabs connected in parallel have a smaller internal resistance, can support a larger current, reduce heat generation, and improve charging efficiency.

[0104] The adapter plate 420 may include a first surface and a second surface opposite to each other in the thickness direction thereof. The first surface of the adapter plate 420 faces the second end of the first pole lug 411 and the second end of the second pole lug 412, that is, the second end of the first pole lug 411 and the second end of the second pole lug 412 are bent to the first surface of the adapter plate 420, and the second end of the first pole lug 411 and the second end of the second pole lug 412 are connected to the first surface of the adapter plate 420; the second surface of the adapter plate 420 faces the end surface of the first end of the battery cell body 211, and is connected to the end surface of the first end of the battery cell body 211. In other words, the adapter plate 420 may be disposed in the first gap.

[0105] Specifically, continue as Figure 4 As shown, the adapter board 420 includes: an adapter board body 421 , a first solder pad 423 and a second solder pad 424 .

[0106] The adapter plate body 421 includes a first surface and a second surface that are opposite to each other in the thickness direction. The first surface of the adapter plate body 421 faces the second end of the first pole lug 411 and the second end of the second pole lug 412, that is, the second end of the first pole lug 411 and the second end of the second pole lug 412 are bent to the first surface of the adapter plate body 421, and the second end of the first pole lug 411 and the second end of the second pole lug 412 are connected to the first surface of the adapter plate body 421; the second surface of the adapter plate body 421 faces the first end surface of the battery cell body 211 and is connected to the first end surface of the battery cell body 211. In other words, the adapter plate body 421 is arranged in the first gap.

[0107] The first pad 423 and the second pad 424 are both disposed on the first surface of the adapter board body 421 , and the first pad 423 is electrically connected to the second end of the first tab 411 , and the second pad 424 is electrically connected to the second end of the second tab 412 .

[0108] It should be understood that the number of the first pads is consistent with the number of the first tabs, and the number of the second pads is consistent with the number of the second tabs.

[0109] In summary, each tab occupies less space in the Y direction of the battery compartment after being bent, and the adapter plate is arranged in the first gap formed by each tab and the first end face of the battery cell body after being bent, and because the thickness of the adapter plate body 421 is less than the width of the battery protection plate, the adapter plate and each tab occupies less space in the Y direction of the battery compartment (i.e., the arrangement direction of the battery cell body and the adapter plate). Based on this, for a battery compartment of the same size, the size of the battery cell body in the battery assembly in the embodiment of the present application in the Y direction of the battery compartment can be longer, so that the volume of the battery cell body can be larger, and thus the capacity of the battery cell body can be larger.

[0110] Further, continue as Figure 4As shown, the adapter board 420 may further include at least one connector 230. The connector 230 is used to connect the battery assembly to a circuit board (such as a main board, etc.) in an electronic device. Each connector 230 in the at least one connector 230 is connected to the adapter board body 421, and each connector 230 is electrically connected to at least one of the first pad 423 and the second pad 424. Since the first pad 423 and the second pad 424 are also electrically connected to the first pole lug 411 and the second pole lug 412, the connector 230 is electrically connected to the first pole lug 411 and the second pole lug 412.

[0111] Exemplarily, when the adapter plate 420 includes a connector 230 , and the improved battery cell 410 includes a first pole lug 411 and a second pole lug 412 , a portion of the connector 230 is connected to the first pole lug 411 , and another portion of the connector 230 is connected to the second pole lug 412 .

[0112] Exemplarily, when the adapter plate 420 includes two connectors 230, and the improved battery cell 410 includes a first pole lug 411 and a second pole lug 412, one of the two connectors 230 is connected to the first pole lug 411, and the other of the two connectors 230 is connected to the second pole lug 412. Alternatively, a portion of each of the two connectors 230 is connected to the first pole lug 411, and a portion of each of the two connectors is connected to the second pole lug 412.

[0113] Further, continue as Figure 4 As shown, the adapter plate 420 may further include at least one connection portion 422 . A first end of each of the at least one connection portion 422 is connected to a side surface of the adapter plate body 421 , and a second end of each connection portion may be connected to a connector 230 .

[0114] When there are multiple connecting parts, the positional relationship between the connecting parts and the above-mentioned first pole ear and the second pole ear can be any one of the following: at least one connecting part is located on the side of the first pole ear away from the second pole ear, and at least one connecting part is located on the side of the second pole ear away from the first pole ear; at least one connecting part is located between the first pole ear and the second pole ear; at least one connecting part is located on the side of the first pole ear away from the second pole ear; at least one connecting part is located on the side of the second pole ear away from the first pole ear.

[0115] The adapter plate body 421 and the connection part 422 may be an integrated structure, or the adapter plate body 421 and the connection part 422 may be a split structure, which is not limited in this article. The adapter plate body 421 and the connection part 422 may be a flexible material with a conductive function, for example, the adapter plate body 421 and the connection part 422 may be a flexible circuit board, or the adapter plate body 421 and the connection part 422 may be a busbar, but it is not limited thereto.

[0116] It should be understood that Figure 4 In the figure, the adapter plate 420 includes an adapter plate body 421, two connecting parts 422, a first solder pad 423, a second solder pad 424, two connectors 230, and the improved battery cell 410 includes a pair of tabs arranged at the first end of the battery cell body 211. In other embodiments, the adapter plate 420 may include a greater or lesser number of connecting parts 422, connectors 230, and solder pads 423, and the improved battery cell 410 may include a greater number of tabs arranged at the first end of the battery cell body 211. Figure 5 and Figure 6 , other structures of the adapter plate and other structures of the improved battery assembly are introduced.

[0117] Figure 5 A schematic structural diagram of an adapter board provided in an embodiment of the present application is shown.

[0118] In one embodiment, if Figure 5 As shown, the adapter plate 420 may include an adapter plate body 421 and a connecting portion 422. At this time, the first end of the connecting portion 422 may be connected to any position of the side of the adapter plate body 421, and the second end of the connecting portion 422 is still connected to a connector 230.

[0119] Based on the above embodiments, the battery assembly provided in the embodiments of the present application may be as follows: Figure 6 The following is combined with Figure 6 Make an introduction.

[0120] Figure 6 A second structural schematic diagram of a battery assembly provided in an embodiment of the present application is shown.

[0121] In one embodiment, if Figure 6As shown in A in FIG. 1 , the improved battery assembly includes: a battery cell body 211, an adapter plate 420 disposed at the first end of the battery cell body 211, and two connectors 230. The adapter plate 420 includes an adapter plate body 421 and two connecting parts 422. The adapter plate body 421 is disposed at the first end of the battery cell body 211, and the two connecting parts 422 can be connected to the side of the adapter plate body 421, and are respectively located on both sides of the adapter plate body 421 along the length direction of the adapter plate body 421, and are respectively connected to the two connectors 230.

[0122] like Figure 6 B in Figure 6 C and Figure 6 As shown in D in FIG. 1 , the improved battery assembly includes: a cell body 211, an adapter plate 420 disposed at a first end of the cell body 211, and a connector 230. The adapter plate 420 includes an adapter plate body 421 and a connecting portion 422. The adapter plate body 421 is disposed at the first end of the cell body 211, and the connecting portion 422 is connected to any position on the side of the adapter plate body 421 and is connected to the connector 230.

[0123] Further, continue as Figure 4 As shown, the improved battery assembly may further include a first top seal. The first top seal includes a first portion and a second portion 431 connected to each other. The first portion of the first top seal is attached to a surface of the cell body 211 in the thickness direction, and the second portion 431 of the first top seal is attached to the first end surface of the cell body 211.

[0124] In this case, the first end of the first electrode tab 411 and the first end of the second electrode tab may be disposed between the second portion 431 of the first top seal and the first end surface of the cell body 211. The adapter plate 420 may be disposed on a side of the second portion 431 of the first top seal away from the cell body 211.

[0125] Exemplarily, the portion of the first pole lug 411 close to the first end of the first pole lug 411 and the portion of the second pole lug 412 close to the first end of the second pole lug 412 are fixed between the second portion 431 of the first top seal and the first end surface of the cell body 211. At the same time, the portion of the first pole lug 411 close to the second end of the first pole lug 411 and the portion of the second pole lug 412 close to the second end of the second pole lug 412 are bent toward one side of the first portion of the first top seal.

[0126] Specifically, the portion of the first pole lug 411 close to the first end of the first pole lug 411 and the portion of the second pole lug 412 close to the first end of the second pole lug 412 are fixed between the second portion 431 of the first top seal and the first end surface of the cell body 211, and extend in a direction away from the first portion of the first top seal, so that the first pole lug 411 and the second pole lug 412 are bent on the side of the second portion 431 of the first top seal away from the first portion. In other words, the first end of the first pole lug 411 is located on the side of the second portion of the first top seal close to the first end surface of the cell body 211, and the second end of the first pole lug 411 is located on the side of the second portion of the first top seal away from the first end surface of the cell body 211. Similarly, the first end of the second pole lug 412 is located on the side of the second portion of the first top seal close to the first end surface of the cell body 211, and the second end of the second pole lug 412 is located on the side of the second portion of the first top seal away from the first end surface of the cell body 211.

[0127] It should be understood that Figure 4 Due to the angle limitation, the second side surface of the battery cell body 211 is blocked and cannot be seen, and the first part of the first top seal is blocked and cannot be seen.

[0128] Exemplarily, the improved battery assembly may further include an insulating adhesive 440. The insulating adhesive 440 may bond a portion of the first pole tab 411 close to the first end of the first pole tab 411 and a portion of the second pole tab 412 close to the first end of the second pole tab 412 to the first end face of the battery cell body 211. On the one hand, since the first end of the first pole tab 411 and the first end of the second pole tab 412 are electrically connected to the first end face of the battery cell body 211, the insulating adhesive 440 may play an insulating role. On the other hand, the insulating adhesive may make the first end of the first pole tab 411 and the first end of the second pole tab 412 more firmly connected to the first end face of the battery cell body.

[0129] Further, continue as Figure 4 As shown, the improved battery assembly may further include a second top seal 450 and a third top seal. A portion 451 of the second top seal 450 is attached to the first side surface of the battery cell body 211, and another portion 452 of the second top seal 450 is attached to the first end surface of the battery cell body 211; a portion of the third top seal is attached to the second side surface of the battery cell body 211, and another portion 461 of the third top seal is attached to the first end surface of the battery cell body 211.

[0130] It should be understood that Figure 4 Due to the angle limitation, the second side surface of the cell body 211 is blocked and cannot be seen, and a portion of the third top seal attached to the second side surface of the cell body 211 is also blocked and cannot be seen.

[0131] Further, another portion of the second top seal may be attached to the edge portion of the adapter plate close to the first side of the cell body away from the surface of the cell body. Another portion of the third top seal is attached to the edge portion of the adapter plate close to the second side away from the surface of the cell body.

[0132] In summary, since the first top seal in the battery assembly is attached to the first end face and a surface of the battery cell body, the second top seal is attached to the first end face and the first side face of the battery cell body, and the third top seal is attached to the first end face and the second side face of the battery cell body 211, there is no top seal area formed by the protruding top seal at the first end of the battery cell body. In other words, the battery assembly in the embodiment of the present application no longer includes a top seal area. This can further save space in the length direction of the battery assembly, thereby further increasing the length of the battery cell body, and then increasing the volume of the battery cell body, and increasing the capacity of the battery cell body.

[0133] Figure 7 A schematic diagram showing a structural comparison of a battery assembly provided in an embodiment of the present application is shown.

[0134] like Figure 7 As shown, by comparison, it can be seen that, when the thickness and width of the battery body remain unchanged, the length of the battery body 211 in the battery assembly 300 provided in the embodiment of the present application is increased, so the volume of the battery body 211 provided in the embodiment of the present application becomes larger. The increase in the volume of the battery body 211 can increase the capacity of the battery body 211, thereby increasing the battery life of the electronic device using the battery assembly 300 provided in the embodiment of the present application, thereby improving the user experience when using the electronic device.

[0135] Furthermore, the following Figure 8-Figure 12 , the charging process and discharging process of the electronic device using the battery assembly provided by the above embodiment are introduced.

[0136] In one embodiment, the load and protection circuit in the electronic device can all be located on the mainboard, and the charging interface is a USB interface. Figure 8 Provide a detailed introduction.

[0137] Figure 8 One of the circuit structure diagrams of an electronic device provided in an embodiment of the present application is shown.

[0138] In one example, if Figure 8As shown, the electronic device may further include a sampling resistor 830, and the charging circuit 810, the protection circuit 820, the sampling resistor 830 and the load 840 are all arranged on the main board 120. The first end of the charging circuit 810 is connected to the power supply end of the USB interface 800 in the sub-board 140 through the main and sub-board connector 150, the second end of the charging circuit 810 is connected to the first end of the protection circuit 820, and the second end of the protection circuit 820 is connected to the first electrode of the improved battery assembly 300 through the sampling resistor 830. The second electrode of the improved battery assembly 300 is connected to the ground terminal of the USB interface 800 through the main and sub-board connector 150. The first end of the load 840 is connected to the first electrode of the improved battery assembly 300, and the second end of the load 840 is connected to the second electrode of the improved battery assembly 300.

[0139] It should be understood that a first electrode at the first end of the improved battery assembly 300 is electrically connected to a first electrode tab, and a second electrode at the first end of the improved battery assembly 300 is electrically connected to a second electrode tab.

[0140] For example, continue as Figure 8 As shown, the charging circuit 810 may include a first protection switch 811, a first charging chip 812, and a second charging chip 813. The first end of the first protection switch 811 is connected to the power supply end of the USB interface 800 through the main and sub-board connector 150, the second end of the first protection switch 811 is connected to the first end of the first charging chip 812, and the second end of the first protection switch 811 is connected to the second end of the second charging chip 813.

[0141] The first protection switch 811 may be a switch with an over voltage protection (OVP) function. For example, the first protection switch 811 may be an OVP transistor, but is not limited thereto. When the first protection switch 811 is an OVP transistor, the source (or drain) of the OVP transistor is the first end of the first protection switch 811, the drain (or source) of the OVP transistor is the second end of the first protection switch 811, and the gate of the OVP transistor is the third end of the first protection switch 811.

[0142] The first charging chip 812 may be a charging chip with a voltage boosting function, a voltage bucking function, or a voltage boosting and voltage reducing function, which is not limited herein.

[0143] Among them, the second charging chip 813 can be a protocol charging chip that has both a charging protocol negotiation function and a charging function. The second charging chip can be called a first protocol charging chip. During the charging process, first, the second charging chip needs to negotiate a charging protocol with the power adapter connected to the USB interface 800. After the negotiation is successful, the power adapter can charge the battery assembly of the electronic device. The negotiation process and negotiation principle between the second charging chip and the power adapter can refer to the relevant introduction in the prior art, which will not be repeated in this article.

[0144] For example, continue as Figure 8 As shown, the protection circuit 820 may include two-stage protection subcircuits. The first-stage protection subcircuit may include a first protection chip 821 and a second protection switch 822. The first protection chip 821 is connected to the third end of the second protection switch 822, and the first end of the second protection switch 822 is connected to the second end of the first charging chip 812. The second-stage protection subcircuit may include a second protection chip 823 and a third protection switch 824. The second protection chip 823 is connected to the third end of the third protection switch 824, the first end of the third protection switch 824 is connected to the second end of the second protection switch 822, and the second end of the third protection switch 824 is connected to the sampling resistor 830.

[0145] Among them, the first protection chip 821 and the second protection chip 823 can be the same type of protection chip, or different types of protection chips. For example, the first protection chip 821 and the second protection chip 823 can both be power meters. Among them, the first protection chip 821 or the second protection chip 823 can reuse the original power meter in the electronic device. When the first protection chip 821 and the second protection chip 823 are power meters, at least one of the first protection chip 821 and the second protection chip 823 can be connected to the improved battery assembly 300, so as to facilitate real-time monitoring of the power information of the battery assembly, and send corresponding data (such as power) to the processor, and the processor then displays these data on the display interface of the electronic device. For example, the processor can display the power on the display interface of the electronic device, thereby helping users to better manage and use the electronic device.

[0146] In addition, each power meter can control the corresponding protection switch to be turned on or off based on the monitored power information, that is, control the on and off of the charging circuit to prevent the improved battery assembly from overcharging, over-discharging or overcurrent, thereby ensuring the safety of the improved battery assembly.

[0147] Compared with the conventional technology, in which both the first protection chip and the second protection chip are additional chips, the present embodiment reuses the original power meter in the electronic device as one of the protection chips, which can save costs. In addition, the power meter also has an anti-counterfeiting function, so in the present embodiment, there is no need to add an additional anti-counterfeiting chip, and the power meter can be used to determine whether the battery assembly installed in the electronic device is a battery assembly supporting the electronic device, further saving costs.

[0148] The second protection switch 822 and the third protection switch 824 may be transistors of the same type or transistors of different types. For example, the second protection switch 822 and the third protection switch 824 may both be N-type transistors, or the second protection switch 822 and the third protection switch 824 may both be P-type transistors, or one of the second protection switch 822 and the third protection switch 824 may be an N-type transistor and the other may be a P-type transistor.

[0149] When the second protection switch 822 and the third protection switch 824 are both transistors, the source (or drain) of the transistor is the first end of the second protection switch 822 and the third protection switch 824, the drain (or source) of the transistor is the second end of the second protection switch 822 and the third protection switch 824, and the gate of the transistor is the third end of the second protection switch 822 and the third end of the third protection switch 824.

[0150] Fig. 9 One of the current flow diagrams provided in the embodiment of the present application is shown. Fig.10 A second current flow diagram provided in an embodiment of the present application is shown.

[0151] In one example, combining Figure 8 ,like Fig. 9As shown, in the process of connecting the external power supply 900 to the USB interface 800 to charge the improved battery assembly 300, before the constant voltage charge (CV) stage, the charging current gradually increases, and the charging current provided by the external power supply 900 can flow through the power supply end of the USB interface 800, the main and auxiliary board connector 150, and the first protection switch 811, and then through the first charging chip 812 and the second charging chip 813 connected in parallel to the second protection switch 822, the third protection switch 824, and the sampling resistor 830 to reach the first electrode of the improved battery assembly 300. Then, the charging current flows from the first electrode of the improved battery assembly 300 to the second electrode of the improved battery assembly 300, the main and auxiliary board connector 150, and finally reaches the ground end of the USB interface 800 to form a charging loop. That is to say, before the constant voltage charging stage, the first charging chip 812 and the second charging chip 813 can be charged in parallel. In this way, the improved battery assembly 300 can reach the preset voltage as soon as possible.

[0152] Combination Figure 8 ,like Fig.10 As shown, in the process of connecting the external power supply to the USB interface 800 to charge the battery assembly 300, in the constant voltage charging stage, the charging current will gradually decrease until it drops to a set threshold. At this time, the second charging chip 813 stops working, so the charging current no longer passes through the second charging chip 813, but only passes through the first charging chip 812. In other words, the charging current provided by the external power supply 900 can reach the first electrode of the battery assembly 300 through the power supply end of the USB interface 800, the main and auxiliary board connector 150, the first protection switch 811, the first charging chip 812, the second protection switch 822, the third protection switch 824, and the sampling resistor 830. Then, the charging current flows from the first electrode of the battery assembly 300 to the second electrode of the battery assembly 300, the main and auxiliary board connector 150, and finally reaches the ground end of the USB interface 800 to form a charging loop.

[0153] Continue as Fig. 9 or Fig.10 As shown, when the load 840 is running, the improved battery assembly 300 can supply power to the load 840. At this time, the discharge current of the improved battery assembly 300 can flow to the load 840 through the first electrode of the improved battery assembly 300, and finally reach the second electrode of the improved battery assembly 300 to form a discharge loop.

[0154] In this embodiment, after the structure of the battery assembly 300 is improved, the length of the battery cell body in the battery assembly 300 is increased, thereby increasing the volume of the battery cell body, making the capacity of the battery cell body larger, that is, making the capacity of the improved battery assembly 300 larger. In this way, during a charging process, the improved battery assembly 300 can store more electrical energy, so that during the discharge process, the battery assembly 300 can support the operation of the electronic device for a longer time, that is, the battery life of the electronic device using the battery assembly is increased, and the user experience of the electronic device is improved.

[0155] In another embodiment, the first load in the electronic device is arranged on the main board, the second load is arranged on the sub-board, the protection circuit is arranged on the main board, and the charging interface is a USB interface. Fig.11 Provide a detailed introduction.

[0156] Fig.11 A second circuit structure schematic diagram of an electronic device provided in an embodiment of the present application is shown.

[0157] In one example, if Fig.11 As shown, the charging circuit 810, the protection circuit 820, the sampling resistor 830, and the first load 1010 are arranged on the main board 120. The first end of the charging circuit 810 is connected to the power supply end of the USB interface 800 in the sub-board 140 through the first main-sub-board connector 151, the second end of the charging circuit 810 is connected to the first end of the protection circuit 820, and the second end of the protection circuit 820 is connected to the first electrode of the improved battery assembly 300 through the sampling resistor 830. The second electrode of the improved battery assembly 300 is connected to the ground end of the USB interface 800 through the first main-sub-board connector 151. The first end of the first load 1010 is connected to the first electrode of the improved battery assembly 300, and the second end of the first load 1010 is connected to the second electrode of the improved battery assembly 300.

[0158] In addition to the USB interface 800 being disposed on the sub-board 140, the second load 1020 is also disposed on the sub-board 140. The first end of the second load 1020 is connected to the first electrode of the improved battery assembly 300 through the second main-sub-board connector 152, and the second end of the second load 1020 is connected to the second electrode of the improved battery assembly 300 through the first main-sub-board connector 151.

[0159] It should be understood that the first main-sub-board connector 151 and the second main-sub-board connector 152 can be the same main-sub-board connector, or two independent main-sub-board connectors. In this embodiment, the first main-sub-board connector 151 and the second main-sub-board connector 152 are independent main-sub-board connectors.

[0160] In addition, the structure of the charging circuit 810 in this embodiment can refer to the structure of the charging circuit 810 in the above embodiment, and the structure of the protection circuit 820 in this embodiment can refer to the structure of the protection circuit 820 in the above embodiment. The connection relationship between each module in the charging circuit 810 and each module in the protection circuit 820 can refer to the relevant introduction in the above embodiment, which will not be repeated herein.

[0161] Fig.12 A third current flow diagram provided in an embodiment of the present application is shown.

[0162] In one example, combining Fig.11 ,like Fig.12 As shown, in the process of connecting the external power supply 900 to the USB interface 800 to charge the improved battery assembly 300, before the constant voltage stage, the charging current provided by the external power supply 900 can flow through the power supply end of the USB interface 800, the first main and auxiliary board connector 151, and the first protection switch 811, and then through the first charging chip 812 and the second charging chip 813 to the second protection switch 822, the third protection switch 824, and the sampling resistor 830, and reach the first electrode of the improved battery assembly 300. Then, the charging current flows from the first electrode of the improved battery assembly 300 to the second electrode of the improved battery assembly 300, the first main and auxiliary board connector 151, and finally reaches the ground end of the USB interface 800 to form a charging loop. In the constant voltage charging stage, since the charging current gradually decreases, the second charging chip 813 stops working, so the charging current no longer passes through the second charging chip 813, but only passes through the first charging chip 812.

[0163] Continue as Fig.12 As shown, when the first load 1010 is running, the improved battery assembly 300 can supply power to the first load 1010. At this time, the discharge current of the improved battery assembly 300 can flow to the first load 1010 through the first electrode of the improved battery assembly 300, and finally reach the second electrode of the improved battery assembly 300, forming a discharge loop.

[0164] Continue as Fig.12 As shown, when the second load 1020 is running, the improved battery assembly 300 can supply power to the second load 1020. At this time, the discharge current of the improved battery assembly 300 can flow from the first electrode of the improved battery assembly 300 to the first end of the second load 1020 through the second main-sub-board connector 152, and then from the second end of the second load 1020 to the second electrode of the improved battery assembly 300 through the first main-sub-board connector 151, forming a discharge loop.

[0165] Compared with the above embodiment, in this embodiment, part of the load (i.e., the second load) is set in the sub-board, which can make the layout of each module in the electronic device more reasonable, so that the weight of the electronic device in the Y direction is more uniform and does not appear "top-heavy".

[0166] Furthermore, in order to improve the charging efficiency, the embodiment of the present application further improves the structure of the battery assembly and improves the layout of related modules in the electronic device using the battery assembly.

[0167] In one embodiment, the improved battery assembly may include: a battery cell body, at least two pairs of tabs, and two adapter plates.

[0168] Among them, one adapter plate is located at the first end of the battery cell body, and the second surface of the adapter plate faces the first end surface of the battery cell body and is connected to the first end surface of the battery cell body; the other adapter plate is located at the second end of the battery cell body, and the second surface of the adapter plate faces the second end surface of the battery cell body and is connected to the second end surface of the battery cell body.

[0169] The structure of each adapter plate and the connection relationship between each adapter plate and the end surface corresponding to the battery cell body can be referred to the relevant introduction in the above embodiments, which will not be repeated herein.

[0170] Wherein, at least one pair of pole tabs is connected to the first end surface of the battery cell body, and the other pole tabs of at least two pairs of pole tabs are connected to the second end surface of the battery cell body.

[0171] The shape of each pair of tabs, and the connection relationship between each pair of tabs and the corresponding end faces of the cell body can be referred to the relevant introduction in the above embodiments, which will not be repeated herein.

[0172] Exemplarily, the improved battery assembly may include two pairs of tabs, one pair of tabs being connected to a first end surface of the battery cell body, and the other pair of tabs being connected to a second end surface of the battery cell body.

[0173] Combined with the following Figure 13-Figure 16 , a further improved battery assembly and possible structures of electronic devices using the battery assembly are introduced.

[0174] Fig.13 A third structural schematic diagram of a battery assembly provided in an embodiment of the present application is shown.

[0175] In one example, if Fig.13 A- Fig.13 As shown in D in FIG. 1 , the improved battery assembly includes: a battery cell body 211, a first pole ear and a second pole ear arranged at a first end of the battery cell body 211, and a transfer plate 420; a first pole ear and a second pole ear arranged at a second end of the battery cell body 211, and a transfer plate 420. It should be noted that, Fig.13 A- Fig.13 The D in FIG. 1 does not show the tabs.

[0176] It should be understood that Fig.13 A in Fig.13 B in Fig.13 C and Fig.13 In the embodiment shown in D, the structures of the adapter plate at the first end of the battery cell body and the adapter plate at the second end of the battery cell body in a battery assembly are the same. In other embodiments, the structures of the adapter plate at the first end of the battery cell body and the adapter plate at the second end of the battery cell body in a battery assembly may be different. For example, the adapter plate at the first end of the battery cell body in a battery assembly includes an adapter plate body and two connecting parts, and the adapter plate at the second end of the battery cell body includes an adapter plate body and a connecting part.

[0177] Fig.14 A second structural schematic diagram of an electronic device provided in an embodiment of the present application is shown.

[0178] In one embodiment, if Fig.14 As shown, the electronic device provided in the embodiment of the present application may include: a housing 110, a main board 120, an improved battery assembly 300, a sub-board 140 and a charging interface 160. Along the Y direction of the electronic device, the main board 120, the improved battery assembly 300 and the sub-board 140 are arranged in sequence from top to bottom. The first electrode and the second electrode at the first end of the improved battery assembly 300 are connected to the main board 120 to supply power to the main board 120; the third electrode and the fourth electrode at the second end of the improved battery assembly 300 are connected to the sub-board 140 to supply power to the sub-board 140. The charging interface 160 is arranged on the sub-board 140. The charging interface 160 can be connected to an external power source through a power adapter.

[0179] Fig.15 A third circuit structure schematic diagram of an electronic device provided in an embodiment of the present application is shown.

[0180] In one embodiment, if Fig.15 As shown, the first load 1010 is disposed on the main board 120. The first end of the first load 1010 is connected to the first electrode of the first end of the improved battery assembly 300, and the second end of the first load 1010 is connected to the second electrode of the first end of the improved battery assembly 300.

[0181] In addition to the USB interface 800 being arranged on the sub-board 140, the charging circuit 810, the protection circuit 820, the sampling resistor 830 and the second load 1020 are also arranged on the sub-board 140. The first end of the charging circuit 810 is connected to the power supply end of the USB interface 800, and the second end of the charging circuit 810 is connected to the first end of the protection circuit 820. The second end of the protection circuit 820 is connected to the third electrode of the second end of the improved battery assembly 300 through the sampling resistor 830. The fourth electrode of the second end of the improved battery assembly 300 is connected to the ground end of the USB interface 800. The first end of the second load 1020 is connected to the third electrode of the second end of the improved battery assembly 300, and the second end of the second load 1020 is connected to the fourth electrode of the second end of the improved battery assembly 300.

[0182] It should be understood that the third electrode at the second end of the improved battery assembly 300 is electrically connected to the first pole tab at the second end of the battery cell body, and the fourth electrode at the second end of the improved battery assembly 300 is electrically connected to a second pole tab at the second end of the battery cell body.

[0183] In addition, the structure of the charging circuit 810 in this embodiment can refer to the structure of the charging circuit 810 in the above embodiment, and the structure of the protection circuit 820 in this embodiment can refer to the structure of the protection circuit 820 in the above embodiment. The connection relationship between each module in the charging circuit 810 and each module in the protection circuit 820 can refer to the relevant introduction in the above embodiment, which will not be repeated herein.

[0184] Fig.16 A fourth current flow diagram provided in an embodiment of the present application is shown.

[0185] In one embodiment, in combination Fig.15 ,like Fig.16 As shown, in the process of connecting the external power supply 900 to the USB interface 800 to charge the battery assembly 300, before the constant voltage charging stage, the charging current provided by the external power supply 900 can flow through the power supply end of the USB interface 800, the first protection switch 811, the first charging chip 812 and the second charging chip 813 to the second protection switch 822, the third protection switch 824, the sampling resistor 830, and reach the third electrode of the second end of the improved battery assembly 300. Then, the charging current flows from the third electrode of the second end of the improved battery assembly 300 to the fourth electrode of the second end of the improved battery assembly 300 in sequence, and finally reaches the ground end of the USB interface 800 to form a charging loop. In the constant voltage charging stage, since the charging current gradually decreases, the charging current no longer passes through the second charging chip 813, but only passes through the first charging chip 812.

[0186] Continue as Fig.16As shown, when the first load 1010 set on the mainboard 120 is running, the improved battery assembly 300 can supply power to the first load 1010. At this time, the discharge current of the improved battery assembly 300 can flow to the first load 1010 through the first electrode of the first end of the improved battery assembly 300, and finally reach the second electrode of the first end of the improved battery assembly 300, forming a discharge loop.

[0187] Continue as Fig.16 As shown, when the second load 1020 disposed on the auxiliary board 140 is running, the improved battery assembly 300 can supply power to the second load 1020. At this time, the discharge current of the improved battery assembly 300 can flow to the second load 1020 through the third electrode at the second end of the improved battery assembly 300, and finally reach the fourth electrode at the second end of the improved battery assembly 300, forming a discharge loop.

[0188] In this embodiment, the charging-related modules in the electronic device are arranged on the sub-board, so that the entire charging circuit is located on the sub-board, shortening the charging path, so that the electric energy in the charging process can be more effectively converted into the chemical energy of the battery components, reducing the heat energy loss caused by the resistance of the charging circuit during the conversion process, greatly improving the charging efficiency, and then improving the charging speed. At the same time, the discharge circuit corresponding to the first load is located on the main board, and the discharge circuit corresponding to the second load is located on the sub-board. In this way, the discharge path corresponding to each load is shortened, the electric energy loss on the discharge path is reduced, and the utilization efficiency of electric energy is improved.

[0189] In addition, in this embodiment, since the charging-related modules in the electronic device are arranged on the sub-board, the main-sub-board connector for connecting the main board and the sub-board is no longer needed in the electronic device, which not only reduces the cost, but also increases the thickness of the battery cell body included in the improved battery assembly while the accommodation space of the battery assembly remains unchanged. That is to say, compared with any of the above embodiments, the thickness of the battery cell body included in the improved battery assembly in this embodiment is thicker, so the volume of the battery cell body in this embodiment is larger, so that the capacity of the battery cell body in this embodiment is larger, and thus the capacity of the improved battery assembly in this embodiment is larger.

[0190] Based on this, compared with the above embodiment, during a single charging process, the improved battery assembly in this embodiment can store more electrical energy, so that during the discharge process, the battery assembly can support the electronic device to run for a longer time, that is, further improving the battery life of the electronic device using the battery assembly, and further improving the user experience of using the electronic device.

[0191] Furthermore, in order to further improve the charging efficiency, the embodiment of the present application further improves the layout of the relevant modules in the electronic device using the battery assembly having a pair of electrodes at opposite ends. Figure 17-Figure 19 Make an introduction.

[0192] Fig.17 A third structural schematic diagram of an electronic device provided in an embodiment of the present application is shown.

[0193] In one embodiment, if Fig.17 As shown, the electronic device provided in the embodiment of the present application may include: a housing 110, a main board 120, an improved battery assembly 300, a sub-board 140, a main-sub-board connector 150 and a charging interface. Along the Y direction of the electronic device, the main board 120, the improved battery assembly 300 and the sub-board 140 are arranged in sequence from top to bottom. The first electrode and the second electrode located at the first end of the improved battery assembly 300 are connected to the main board 120 to supply power to the main board 120; the third electrode and the fourth electrode located at the second end of the improved battery assembly 300 are connected to the sub-board 140 to supply power to the sub-board 140. The main-sub-board connector 150 connects the main board 120 and the sub-board 140 to provide a transmission path for signals (such as current signals, etc.) that need to be transmitted between the main board 120 and the sub-board 140. The charging interface 160 is arranged on the sub-board 140. The charging interface 160 can be connected to an external power source through a power adapter.

[0194] In this embodiment, the charging circuit is improved (such as adding a third charging chip), and the improved charging circuit is split, with one part of the charging circuit (which can be called the first charging sub-circuit) being set on the main board, and the other part of the charging circuit (such as the second charging sub-circuit) being set on the secondary board. In addition, the protection circuit is split, with one part of the protection circuit (which can be called the first protection sub-circuit) being set on the main board, and the other part of the protection circuit (which can be called the second protection sub-circuit) being set on the secondary board. Fig.18 Provide a detailed introduction.

[0195] Fig.18 A fourth circuit structure schematic diagram of an electronic device provided in an embodiment of the present application is shown.

[0196] In one example, if Fig.18As shown, the first charging subcircuit 1811, the first protection subcircuit 1821, the first sampling resistor 831 and the first load 1010 are arranged on the main board 120. The first end of the first charging subcircuit 1811 is connected to the second charging subcircuit 1812 in the subboard 140 through the main and subboard connector 150, and the second end of the first charging subcircuit 1811 is connected to the first end of the first protection subcircuit 1821. The second end of the first protection subcircuit 1821 is connected to the first electrode of the first end of the improved battery assembly 300 through the first sampling resistor 831. The second electrode of the first end of the improved battery assembly 300 is connected to the ground terminal of the USB interface 800 through the main and subboard connector 150. The first end of the first load 1010 is connected to the first electrode of the first end of the improved battery assembly 300, and the second end of the first load 1010 is connected to the second electrode of the first end of the improved battery assembly 300.

[0197] In addition to the USB interface 800 being arranged on the secondary board 140, the second charging subcircuit 1812, the second protection subcircuit 1822, the second sampling resistor 832 and the second load 1020 are also arranged on the secondary board 140. The first end of the second charging subcircuit 1812 is connected to the power supply end of the USB interface 800, and the second end of the second charging subcircuit 1812 is connected to the first end of the second protection subcircuit 1822. The second end of the second protection subcircuit 1822 is connected to the third electrode of the second end of the improved battery assembly 300 through the second sampling resistor. The fourth electrode of the second end of the improved battery assembly 300 is connected to the ground end of the USB interface 800.

[0198] For example, continue as Fig.18 As shown, the first charging subcircuit 1811 includes: a first charging chip 812 and a second charging chip 813 connected in parallel. The first end of the first charging chip 812 and the first end of the second charging chip 813 are connected to the second charging subcircuit 1812 through the main and sub-board connectors 150, and the second end of the first charging chip 812 and the second end of the second charging chip 813 are connected to the first protection subcircuit 1821.

[0199] The second charging subcircuit 1812 includes: a first protection switch 811 and a third charging chip 814 connected in series. The first end of the first protection switch 811 is connected to the power supply end of the USB interface 800, and the second end of the first protection switch 811 is connected to the first end of the third charging chip 814 and the first end of the first charging chip 812. The second end of the third charging chip 814 is connected to the second protection subcircuit 1822.

[0200] The third charging chip 814 may be a chip of the same type as the second charging chip 813. That is, the third charging chip 814 may be a chip having both a charging function and a charging protocol negotiation function. For details, please refer to the above-mentioned introduction to the second charging chip 813, which will not be described in detail herein.

[0201] The first protection subcircuit 1821 includes: a first protection chip 821 and a second protection switch 822. The first end of the first protection chip 821 is connected to the third end of the second protection switch 822. The first end of the second protection switch 822 is connected to the second end of the first charging chip 812 and the second end of the second charging chip 813, and the second end of the second protection switch 822 is connected to the first electrode of the first end of the improved battery assembly 300 through the first sampling resistor 831.

[0202] The second protection subcircuit 1822 includes: a second protection chip 823 and a third protection switch 824. The second protection chip 823 is connected to the third end of the third protection switch 824. The first end of the third protection switch 824 is connected to the second end of the third charging chip 814, and the second end of the third protection switch 824 is connected to the third electrode of the second end of the improved battery assembly 300 through the second sampling resistor 832.

[0203] Fig.19 A fifth current flow diagram provided in an embodiment of the present application is shown.

[0204] In one example, combining Fig.18 ,like Fig.19 As shown, in the process of charging the improved battery assembly 300 by connecting the external power supply 900 to the USB interface 800, before the constant voltage charging stage, the charging current gradually increases. After the charging current provided by the external power supply 900 passes through the power supply end of the USB interface 800 and the first protection switch 811, a part of the charging current passes through the main and auxiliary board connector 150, and the first charging chip 812 and the second charging chip 813 connected in parallel, flows to the second protection switch 822, the first sampling resistor 831, and reaches the first electrode of the first end of the improved battery assembly 300. Then, this part of the charging current flows from the first electrode of the first end of the improved battery assembly 300 to the second electrode of the first end of the improved battery assembly 300, the main and auxiliary board connector 150, and finally reaches the ground end of the USB interface 800, forming a charging loop.

[0205] Another part of the charging current flows to the third electrode at the second end of the improved battery assembly 300 through the third charging chip 814, the third protection switch 824, and the second sampling resistor 832. Then, this part of the charging current flows from the third electrode at the second end of the improved battery assembly 300 to the fourth electrode at the second end of the improved battery assembly 300 in sequence, and finally reaches the ground end of the USB interface 800, forming another charging loop.

[0206] During the constant voltage charging stage, the charging current will gradually decrease until it drops to a set threshold. At this time, the third charging chip 814 stops working, that is, the charging circuit on the secondary board is disconnected, so that the improved battery assembly is charged only through the charging circuit on the main board. At the same time, since the second charging chip 813 stops working, the charging circuit of the main board will change, that is, the charging current no longer passes through the second charging chip 813, but only passes through the first charging chip 812.

[0207] It can be seen that, compared with the above embodiment, in this embodiment, one charging circuit is arranged on the main board, and the other charging circuit is arranged on the sub-board. Before the constant voltage charging stage, the improved battery assembly can be charged through two pairs of electrodes in parallel, that is, the charging circuit on the main board and the charging circuit on the sub-board work at the same time, so that the problem of reducing the charging speed of the electronic device due to excessive local temperature during the charging process can be effectively alleviated. In other words, this embodiment can further improve the charging speed of the electronic device.

[0208] It should be understood that in other embodiments, the first charging sub-circuit may be disposed on a main board, and the second charging sub-circuit may be disposed on a sub-board.

[0209] In addition, in the above embodiment, the first electrode of the improved battery assembly is a positive electrode, the second electrode of the improved battery assembly is a negative electrode, the third electrode of the improved battery assembly is a positive electrode, the fourth electrode of the improved battery assembly is a negative electrode, and the charging circuit, the protection circuit and the sampling resistor are all located between the first electrode (or the third electrode) and the second electrode (or the fourth electrode). In other embodiments, the first electrode of the improved battery assembly can be a negative electrode, the second electrode of the improved battery assembly can be a positive electrode, the third electrode of the improved battery assembly can be a negative electrode, and the fourth electrode of the improved battery assembly can be a positive electrode; or, a part of the charging circuit, the protection circuit and the sampling resistor can be located between the charging interface and the positive electrode, and another part of the charging circuit, the protection circuit and the sampling resistor can be located between the negative electrode and the charging interface, which is not limited in this article.

[0210] In the several embodiments provided in the present application, it should be understood that the disclosed circuits and devices can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or modules, which can be electrical, mechanical or other forms.

[0211] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one device or distributed on multiple devices. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0212] In addition, each functional module in each embodiment of the present application may be integrated into one device, or each module may exist physically separately, or two or more modules may be integrated into one device.

[0213] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: include: Charging circuit, protection circuit, load, charging interface and battery assembly; The battery assembly comprises a battery cell body, a first pole lug, a second pole lug and a transfer plate; a first end of the first pole lug and a first end of the second pole lug are connected to an end surface of the battery cell body, and a first gap is formed between the first pole lug and the second pole lug and an end surface of the battery cell body; The adapter plate includes an adapter plate body, at least one connecting portion and at least one connector; The adapter plate body is arranged in the first gap; The adapter plate body includes a first surface, a second surface, a first solder pad and a second solder pad; The first surface and the second surface are arranged opposite to each other in the thickness direction of the adapter plate; the second surface of the adapter plate faces the end surface of the battery cell body and is connected to the end surface of the battery cell body; wherein the second end of the first pole lug and the second end of the second pole lug are bent to the first surface of the adapter plate and are electrically connected to the first surface of the adapter plate; The first pad and the second pad are disposed on the first surface of the adapter plate body; the first pad is electrically connected to the second end of the first tab, and the second pad is electrically connected to the second end of the second tab; The first end of each of the connecting parts is connected to the side of the adapter board body; the second end of each of the connecting parts is connected to one of the connectors; the connector is electrically connected to the first pad and / or the second pad; The first end of the battery assembly comprises a first electrode and a second electrode, the first electrode is electrically connected to the first electrode tab of the first end of the battery assembly, and the second electrode is electrically connected to the second electrode tab of the first end of the battery assembly; The electronic device further comprises a main board and a sub-board, wherein the main board is located at a first end of the battery assembly, and the sub-board is located at a second end of the battery assembly, and the first end of the battery assembly and the second end of the battery assembly are two opposite ends of the battery assembly; The charging interface is arranged on the sub-board; the charging circuit and the protection circuit are both arranged on the main board; The electronic device also includes a main-sub-board connector; the first end of the charging circuit is connected to the charging interface through the main-sub-board connector, the second end of the charging circuit is connected to the first end of the protection circuit, the second end of the protection circuit is connected to the first electrode, and the second electrode is grounded to the charging interface through the main-sub-board connector; the first end of the load is connected to the first electrode, and the second end of the load is connected to the second electrode.

2. The electronic device according to claim 1, characterized in that: The first pole lug and the second pole lug are arranged at intervals along a first direction, wherein the first direction is parallel to the end surface of the battery cell body and intersects with the thickness direction of the battery cell body; There are multiple connecting portions, at least one of which is located on a side of the first pole tab away from the second pole tab, and at least one of which is located on a side of the second pole tab away from the first pole tab; or, The at least one connecting portion is located between the first pole lug and the second pole lug; or, The at least one connecting portion is located on a side of the first electrode tab away from the second electrode tab; or, The at least one connecting portion is located on a side of the second electrode tab facing away from the first electrode tab.

3. The electronic device according to any one of claims 1 to 2, characterized in that: The battery assembly also includes a first top seal; The first top seal comprises a first part and a second part connected to each other, the first part of the first top seal is attached to a surface of the battery cell body in a thickness direction, and the second part of the first top seal is attached to the end surface of the battery cell body; The first end of the first pole lug and the first end of the second pole lug are arranged between the second portion of the first top seal and the end surface of the battery cell body; The adapter plate is arranged on a side of the second portion of the first top seal away from the battery cell body.

4. The electronic device according to claim 3, characterized in that: A portion of the first pole lug close to the first end of the first pole lug and a portion of the second pole lug close to the first end of the second pole lug are fixed between the second portion of the first top seal and the end surface of the battery cell body, and a portion of the first pole lug close to the second end of the first pole lug and a portion of the second pole lug close to the second end of the second pole lug are bent toward one side of the first portion of the first top seal.

5. The electronic device according to claim 4, characterized in that: The battery assembly further includes an insulating adhesive for bonding a portion of the first pole lug close to the first end of the first pole lug and a portion of the second pole lug close to the first end of the second pole lug to the end surface of the battery cell body.

6. The electronic device according to claim 5, characterized in that: The battery cell body comprises a first side surface and a second side surface, which are respectively connected to two sides of the end surface of the battery cell body; The battery assembly also includes a second top seal and a third top seal; A portion of the second top seal is attached to the first side surface, and another portion is attached to the end surface of the battery cell body; A portion of the third top seal is attached to the second side surface, and another portion is attached to the end surface of the battery cell body.

7. The electronic device according to claim 6, characterized in that: The other part of the second top seal is attached to a surface of the adapter plate that is close to the first side surface and away from the battery cell body; The other portion of the third top seal is attached to a surface of the adapter plate, the edge portion of which is close to the second side surface and is away from the battery cell body.

8. The electronic device according to any one of claims 1 to 2, characterized in that: The battery assembly comprises at least two pairs of pole lugs and two adapter plates, and each pair of pole lugs comprises the first pole lug and the second pole lug; The battery cell body comprises a first end face and a second end face opposite to each other; The second surface of one adapter plate faces the first end surface and is connected to the first end surface; the second surface of another adapter plate faces the second end surface and is connected to the second end surface of the battery cell body; At least one pair of tabs is connected to the first end surface, and at least one pair of tabs is connected to the second end surface.

9. The electronic device according to any one of claims 1-2 or 4-7, characterized in that: A part of the load is arranged on the main board, and another part of the load is arranged on the sub-board; or, the load is arranged on the main board; A portion of the charging circuit is arranged on the main board, another portion of the charging circuit is arranged on the sub-board, and a portion of the protection circuit is arranged on the main board, another portion of the protection circuit is arranged on the sub-board; or, both the charging circuit and the protection circuit are arranged on the main board; or, both the charging circuit and the protection circuit are arranged on the sub-board.

10. The electronic device according to claim 9, characterized in that: The load includes a first load and a second load, the first load is arranged on the main board, and the second load is arranged on the sub-board; A first end of the first load is connected to the first electrode, and a second end of the first load is connected to the second electrode; The first end of the second load is connected to the first electrode through the main-sub-board connecting member, and the second end of the second load is connected to the second electrode through the main-sub-board connecting member.

11. The electronic device according to claim 9, characterized in that: The second end of the battery assembly comprises a third electrode and a fourth electrode, the third electrode is electrically connected to the first electrode tab at the second end of the battery assembly, and the fourth electrode is electrically connected to the second electrode tab at the second end of the battery assembly; The charging circuit and the protection circuit are both arranged on the sub-board; The third electrode is connected to the charging interface through the charging circuit and the protection circuit, and the fourth electrode is connected to the charging interface.

12. The electronic device according to claim 11, characterized in that: The load includes a first load and a second load, the first load is arranged on the main board, and the second load is arranged on the sub-board; A first end of the first load is connected to the first electrode, and a second end of the first load is connected to the second electrode; A first end of the second load is connected to the third electrode, and a second end of the second load is connected to the fourth electrode.

13. The electronic device according to claim 9, characterized in that: The second end of the battery assembly comprises a third electrode and a fourth electrode, the third electrode is electrically connected to the first electrode tab at the second end of the battery assembly, and the fourth electrode is electrically connected to the second electrode tab at the second end of the battery assembly; The charging circuit includes a first charging subcircuit and a second charging subcircuit, the first charging subcircuit is arranged on the main board, and the second charging subcircuit is arranged on the sub-board; The protection circuit includes a first protection subcircuit and a second protection subcircuit; the first protection subcircuit is arranged on the main board, and the second protection subcircuit is arranged on the sub-board; The first electrode is connected to the charging interface through the first charging subcircuit, the first protection subcircuit, the main and auxiliary board connector, and the second charging subcircuit, and the second electrode is connected to the charging interface through the main and auxiliary board connector; The third electrode is connected to the charging interface through the second charging subcircuit and the second protection subcircuit, and the fourth electrode is connected to the charging interface.

14. The electronic device according to claim 13, characterized in that: The first protection sub-circuit includes a first protection chip and a second protection switch, the first protection chip is connected to the third end of the second protection switch, and the first end of the second protection switch is connected to the charging circuit; the second protection sub-circuit includes a second protection chip and a third protection switch, the second protection chip is connected to the third end of the third protection switch, the first end of the third protection switch is connected to the second end of the second protection switch, and the second end of the third protection switch is connected to the first electrode.

15. The electronic device according to claim 14, characterized in that: The first charging subcircuit comprises a first charging chip and a second charging chip connected in parallel; the first charging chip is a charging chip having at least one of a voltage reduction function and a voltage increase function, and the second charging chip is a charging chip having a charging protocol negotiation function and a charging function; The second charging sub-circuit includes a first protection switch and a third charging chip connected in series, and the first electrode is connected to the charging interface through the first charging sub-circuit, the first protection sub-circuit, the main-sub-board connector and the first protection switch; the third charging chip is a charging chip with a charging protocol negotiation function and a charging function.

16. The electronic device according to claim 14 or 15, characterized in that: The load includes a first load and a second load, the first load is arranged on the main board, and the second load is arranged on the sub-board; A first end of the first load is connected to the first electrode, and a second end of the first load is connected to the second electrode; A first end of the second load is connected to the third electrode, and a second end of the second load is connected to the fourth electrode.

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