Battery protection board and electric device

Abstract

The utility model relates to the technical field of batteries, in particular to a battery protection board and an electric device, the battery protection board is used for connecting a battery and a mainboard of the electric device, the battery comprises a plurality of tabs, and the battery protection board is a flexible connection assembly. The flexible connection assembly comprises a flexible connection body and a protection module, and the protection module is arranged on the flexible connection body and electrically connected with the flexible connection body. And projecting the flexible connection assembly to the surface of the main board along the direction perpendicular to the main board, wherein the projection of the protection module falls into the main board. According to the battery protection board and the power utilization device provided by the invention, the head space of the battery occupied by the hard board is saved, the battery capacity is improved, and the space utilization rate in the power utilization device is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery protection board and an electrical device. Background Technology

[0002] A battery protection circuit module (PCM) is a crucial component that protects batteries from damage caused by overcharging, over-discharging, and short circuits. A PCM typically consists of a flexible printed circuit board (FPC) and a printed circuit board (PCB). In modern electrical devices, the PCM is usually located at the top of the battery. The thickness of the PCB and the components arranged on it often occupy a significant amount of space at the top of the battery, leading to issues such as reduced battery capacity and low internal space utilization in the electrical device. Utility Model Content

[0003] The purpose of this application is to provide a battery protection board and an electrical device to solve, to a certain extent, the technical problems existing in the prior art, such as the battery protection board being located at the head of the battery in current electrical devices, the thickness of the printed circuit board and the components arranged on the printed circuit board usually occupying a lot of space at the head of the battery, which affects the battery capacity and results in low utilization of the internal space of the electrical device.

[0004] According to a first aspect of this application, a battery protection board is provided for connecting a battery and a motherboard of an electrical device, wherein the battery includes a plurality of tabs and the battery protection board is a flexible connection assembly.

[0005] The flexible connection assembly includes a flexible connection body and a protection module. The flexible connection body is connected to a plurality of the tabs, and the protection module is disposed on the flexible connection body and electrically connected to the flexible connection body.

[0006] The flexible connection component is projected onto the surface of the motherboard in a direction perpendicular to the motherboard, and the projection of the protection module falls into the motherboard.

[0007] Preferably, the flexible connecting body includes a plurality of connecting portions, and both the electrode tab and the connecting portions extend along a first direction;

[0008] The connecting part is provided in a one-to-one correspondence with the electrode tab, and one end of the connecting part in the first direction is electrically connected to the corresponding electrode tab.

[0009] Preferably, the plurality of electrodes are spaced apart along a second direction, which intersects the first direction;

[0010] The flexible connection body further includes a docking portion extending along the second direction, and the end of the connection portion away from the tab is connected to the docking portion.

[0011] Preferably, when the battery protection board and the motherboard are connected, at least a portion of the connecting part and the mating part overlap with the motherboard;

[0012] The protection module is disposed at the portion of the docking part and / or the portion of the connecting part that overlaps with the motherboard.

[0013] Preferably, there is one docking part, and multiple connecting parts are connected to the docking part.

[0014] Preferably, the number of the docking portions is equal to the number of the connecting portions, and each connecting portion is connected to one of the docking portions.

[0015] Preferably, the connecting portion is connected to one end of the mating portion in the second direction;

[0016] Alternatively, the connecting portion is connected to the middle portion of the mating portion in the second direction.

[0017] Preferably, the flexible connection assembly further includes a connector for connecting to the motherboard, the connector being disposed on the portion of the flexible connection body that overlaps with the motherboard.

[0018] According to a second aspect of this application, an electrical device is provided, comprising the aforementioned battery, motherboard, and battery protection board as described in any of the aforementioned technical solutions, thus possessing all the beneficial technical effects of the battery protection board, which will not be elaborated further here.

[0019] The battery protection board connects the battery and the motherboard.

[0020] Preferably, the battery includes one or more cells, and each cell includes two or more tabs.

[0021] Compared with the prior art, the beneficial effects of this application are as follows:

[0022] The battery protection board provided in this application directly connects the tabs and the main board via a flexible connection component, achieving electrical connection between the main board and the battery. The protection module, which protects both the main board and the battery, is located on the part of the flexible connection body that overlaps with the main board. In this way, on the one hand, the protection module replaces the function of the rigid board protection circuit, avoiding the need for a rigid board (i.e., printed circuit board) structure. This not only reduces the manufacturing cost of the battery protection board but also effectively saves the head space occupied by the rigid board. On the other hand, placing the protection module on the part of the flexible connection body that overlaps with the main board further avoids the impact of the protection module on the battery's space occupancy rate, thereby effectively increasing the battery capacity and improving the space utilization rate inside the electrical device.

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the battery protection board provided in Embodiment 1 of this application;

[0026] Figure 2 This is a schematic diagram of the assembly structure of the battery protection board provided in Embodiment 1 of this application;

[0027] Figure 3 This is a schematic diagram of the battery protection board provided in Embodiment 2 of this application;

[0028] Figure 4 This is a schematic diagram of the assembly structure of the battery protection board provided in Embodiment 2 of this application;

[0029] Figure 5 This is a schematic diagram of the battery protection board provided in Embodiment 3 of this application;

[0030] Figure 6 This is a schematic diagram of the assembly structure of the battery protection board provided in Embodiment 3 of this application;

[0031] Figure 7 This is a schematic diagram of the battery protection board provided in Embodiment 4 of this application;

[0032] Figure 8This is a schematic diagram of the assembly structure of the battery protection board provided in Embodiment 4 of this application;

[0033] Figure 9 This is a schematic diagram of the battery protection board provided in Embodiment 5 of this application;

[0034] Figure 10 This is a schematic diagram of the assembly structure of the battery protection board provided in Embodiment 5 of this application;

[0035] Figure 11 This is another assembly structure diagram of the battery protection board provided in Embodiment 5 of this application;

[0036] Figure 12 This is a schematic diagram of the battery protection board provided in Embodiment Six of this application;

[0037] Figure 13 This is a schematic diagram of the assembly structure of the battery protection board provided in Embodiment Six of this application;

[0038] Figure 14 This is a schematic diagram of the structure of the electrical device provided in the embodiments of this application;

[0039] Figure 15 This is another schematic diagram of the electrical device provided in the embodiments of this application;

[0040] Figure 16 A side view of the battery protection board provided in an embodiment of this application;

[0041] Figure 17 This is a side view of the battery protection board provided in an embodiment of this application.

[0042] Figure label:

[0043] 1-Battery protection board; 111-Connecting part; 112-Mating part; 113-Protrusion; 12-Protection module; 13-Connector; 14-Nickel sheet; 15-Mating claw; 2-Battery cell; 21-Electrical tab; 3-Main board; 31-Connecting line; 011-Rigid board; 012-Flexible board; F1-First direction; F2-Second direction. Detailed Implementation

[0044] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0045] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0046] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] The following reference Figures 1 to 17 This application describes a battery protection board 1 and an electrical device according to some embodiments.

[0050] See Figures 1 to 17 As shown, an embodiment of the first aspect of this application provides a battery protection board 1 for connecting a battery of an electrical device and a motherboard 3. The battery includes multiple tabs 21, and the battery protection board 1 is a flexible connection assembly. The flexible connection assembly includes a flexible connection body and a protection module 12. The flexible connection body is connected to the multiple tabs 21, and the protection module 12 is disposed on the flexible connection body and electrically connected to the flexible connection body. When the flexible connection assembly is projected onto the surface of the motherboard 3 in a direction perpendicular to the motherboard 3, the projection of the protection module 12 falls into the motherboard.

[0051] According to the battery protection board 1 provided by the above technical features, the tabs 21 and the main board 3 are directly connected by a flexible connection component to realize the electrical connection between the main board 3 and the battery. The protection module 12, which protects the main board 3 and the battery, is set in the part of the flexible connection body that overlaps with the main board 3. In this way, on the one hand, the protection module 12 replaces the function of the rigid board 011 to protect the circuit, avoiding the need to set up a rigid board 011 (i.e., printed circuit board) structure. This not only reduces the manufacturing cost of the battery protection board 1, but also effectively saves the head space occupied by the rigid board 011. On the other hand, setting the protection module 12 in the part of the flexible connection body that overlaps with the main board 3 further avoids the impact of the protection module 12 on the space occupancy rate of the battery, thereby effectively increasing the battery capacity and improving the space utilization rate inside the electrical device.

[0052] It should be noted that the above-mentioned protection module 12 and the structure of setting the protection module 12 on the flexible connection body are both existing technologies in the field (see the battery protection module 12 described in Chinese patent document CN218897094U and the flexible circuit board described in CN212750966U), and will not be described again here.

[0053] Preferably, such as Figures 1 to 15 As shown, the flexible connection body may include multiple connecting portions 111, both the tabs 21 and the connecting portions 111 extending along the first direction F1. The connecting portion 111 is provided in a one-to-one correspondence with the tabs 21, and one end of the connecting portion 111 in the first direction F1 is electrically connected to the corresponding tab 21, so as to realize the independent connection between each tab 21 in the battery and the flexible connection body.

[0054] Preferably, such as Figure 1 , Figure 3 , Figure 5 , Figure 7 , Figure 9 and Figure 12 As shown, the flexible connection body may further include a nickel sheet 14, which is disposed at the end of the connection portion 111 that is connected to the tab 21, so that the tab 21 can be connected to the connection portion 111.

[0055] Preferably, such as Figures 1 to 15 As shown, multiple tabs 21 can be spaced apart along the second direction F2. Correspondingly, as... Figures 1 to 15 As shown, the flexible connection body also includes a docking portion 112 extending along the second direction F2. The end of the connecting portion 111 away from the tab 21 is connected to the docking portion 112 so as to realize the loop connection between each tab 21 through the docking portion 112 extending along the second direction F2.

[0056] like Figures 1 to 15As shown in the figure, F1 can be an example of the first direction F1 described above, and F2 can be an example of the second direction F2 described above, wherein the first direction F1 and the second direction F2 intersect. Preferably, the first direction F1 and the second direction F2 are perpendicular to each other, so as to save wiring space on the motherboard 3.

[0057] Preferably, such as Figures 1 to 15 As shown, the flexible connection assembly may also include a connector 13 for connecting to the motherboard 3. The connector 13 may also be disposed in the part of the flexible connection body that overlaps with the motherboard 3, which not only realizes the connection between the flexible connection assembly and the motherboard 3, but also effectively avoids the connector 13 occupying the space of the battery.

[0058] Preferably, the connector 13 can be disposed on the mating part 112 so that the mating part 112 can be electrically connected to the motherboard 3 via the connector 13.

[0059] Preferably, such as Figures 3 to 8 As shown, the above-mentioned flexible connection body may also include a protrusion 113, which can protrude from the docking part 112 along the first direction F1 in a direction away from the connection part 111. The connector 13 can be disposed on the protrusion, which not only facilitates the docking part 112 to be electrically connected to the motherboard 3 via the connector 13, but also allows the docking part 112 to have more space to arrange the protection circuit.

[0060] Optionally, not shown in the figure, the above-mentioned flexible connection body may also be provided with a power copper foil, which may be disposed between the connector 13 and the nickel sheet 14, so that the circuit safety can be ensured by melting the power copper foil when the battery protection board 1 is short-circuited.

[0061] Preferably, the aforementioned power copper foil can be provided between the nickel sheet 14 of each of the connecting parts 111 and the corresponding connector 13 to ensure the connection safety of each tab 21.

[0062] Preferably, such as Figure 2 , Figure 4 , Figure 6 , Figure 8 , Figure 10 , Figure 11 , Figures 13 to 15 As shown, when the battery protection board 1 and the main board 3 are connected, at least a portion of the mating part 112 and the connecting part 111 overlap with the main board 3. In other words, optionally, as shown... Figures 1 to 10 As shown, the protection module 12 can be disposed on the docking portion 112. Optionally, as... Figures 11 to 13As shown, the protection module 12 can be disposed at the portion of the connecting part 111 that overlaps with the motherboard 3. Optionally, not shown in the figure, the protection module 12 can also be disposed at the intersection of the mating part 112 and the connecting part 111.

[0063] Optionally, such as Figures 1 to 3 , Figure 5 , Figure 9 and Figure 12 As shown, the flexible connection component may include one of the aforementioned protection modules 12.

[0064] Optionally, such as Figure 7 , Figure 8 , Figure 11 , Figure 14 As shown, the above-mentioned flexible connection assembly may include two of the above-mentioned protection modules 12 to realize independent control of the positive and negative lines by the protection module 12.

[0065] like Figures 1 to 8 As shown in the figure, there are four different types of flexible connection components, each with a single docking part 112 and multiple connecting parts 111 connected to the docking part 112.

[0066] Example 1, as Figure 1 and Figure 2 As shown in the figure, an example of the above-mentioned flexible connection body being U-shaped is shown. That is, the flexible connection body includes an example of a docking part 112 and the above-mentioned two connecting parts 111, and the two connecting parts 111 are respectively connected to the two ends of the docking part 112.

[0067] In this embodiment, preferably, as follows: Figure 1 and Figure 2 As shown, the flexible connection assembly may include one protection module 12 and two connectors 13, with the two connectors 13 respectively disposed at both ends of the mating portion 112, and the protection module 12 disposed in the portion of the mating portion 112 between the two connectors 13.

[0068] Example 2, as Figure 2 and Figure 3 As shown in the figure, an example of an H-shaped flexible connecting body is illustrated. That is, the flexible connecting body includes a docking portion 112, the two connecting portions 111, and two protrusions 113. The distribution structure of the docking portion 112 and connecting portions 111 of this H-shaped flexible connecting body is similar to that of the U-shaped flexible connecting body described above, and will not be repeated here. The two protrusions 113 can be respectively arranged opposite to the two connecting portions 111. Correspondingly, in this embodiment, as... Figure 2As shown in the figure, the above-mentioned flexible connection assembly may also include one of the above-mentioned protection modules 12 and two of the above-mentioned connectors 13. The two connectors 13 may be respectively disposed on two protrusions 113, and the protection module 12 may be disposed on the mating part 112.

[0069] Example 3, as Figure 5 and Figure 6 As shown in the figure, the flexible connection body includes an example of a mating portion 112, two connecting portions 111, and a protrusion 113. Figure 5 and Figure 6 As shown, in this embodiment, the structure of one docking portion 112 and two connecting portions 111 is distributed with the above-mentioned U-shaped flexible connecting body. The protrusion 113 can be provided in the middle of the docking portion 112.

[0070] In this embodiment, preferably, as follows: Figure 5 and Figure 6 As shown, the above-mentioned flexible connection assembly may include a connector 13 and a protection module 12. The connector 13 is disposed on the protrusion 113, and the protection module 12 is disposed in the middle of the mating portion 112.

[0071] Example 4, as Figure 7 and Figure 8 As shown in the figure, the flexible connection body includes an example of a mating portion 112, two connecting portions 111, and two protrusions 113. Figure 7 and Figure 8 As shown, in this embodiment, the structure of one docking portion 112 and two connecting portions 111 is the same as the above-mentioned U-shaped flexible connecting body. The two protrusions 113 can both be disposed in the middle of the docking portion 112 to adapt to different motherboard 3 structures.

[0072] In this embodiment, preferably, as follows: Figure 5 and Figure 6 As shown, the above-mentioned flexible connection assembly may include two connectors 13 and two protection modules 12. The two connectors 13 may be respectively disposed on two protrusions 113, and the two protection modules 12 may be respectively disposed in the middle of the mating part 112. The two protection modules 12 may be electrically connected to the two connectors 13 respectively, so as to realize independent control of the two connection parts 111.

[0073] It should be noted that the above four embodiments only show examples of flexible connection bodies including two connection parts 111. Correspondingly, the battery includes two tabs 21 (that is, the battery includes only one cell 2, and the two tabs 21 can be the positive tab 21 and the negative tab 21 of the cell 2, respectively). That is, the two connection parts 111 of the flexible connection body are connected to the positive tab 21 and the negative tab 21 of the cell 2, respectively.

[0074] However, it is not limited to this. The number of connecting parts 111 included in the flexible connecting body can be adaptively adjusted according to the number of tabs 21 included in the battery (for example, the number of tabs 21 included in each cell 2 is greater than 2, for example, the number of tabs 21 included in each cell 2 can be three, four... more; or the battery can include multiple cells 2 arranged side by side).

[0075] like Figures 9 to 15 As shown in the figure, there are four different types of flexible connection components in which the number of docking parts 112 is equal to the number of connecting parts 111, and each connecting part 111 is connected to a docking part 112.

[0076] Example 5, such as Figures 9 to 11 As shown in the figure, the above-mentioned flexible connection body can be L-shaped, that is, the connecting part 111 is connected to one end of the corresponding docking part 112 in the second direction F2.

[0077] In this embodiment, preferably, as follows: Figures 9 to 11 As shown, the flexible connection assembly may include the two L-shaped flexible connection bodies described above, and the two L-shaped flexible connection bodies are arranged opposite to each other. Each L-shaped flexible connection body may be provided with the connector 13 described above, so that each L-shaped flexible connection body can be independently electrically connected to the motherboard 3.

[0078] Preferably, such as Figures 9 to 11 As shown, each of the above-mentioned L-shaped flexible connecting bodies can be provided with a docking claw 15. The docking claw 15 can be provided at the end of the docking part 112 away from the connecting part 111, so as to dock the two L-shaped flexible connecting bodies with each other.

[0079] Preferably, such as Figure 10 and Figure 11 As shown, the motherboard 3 can be embedded with a connecting line 31 that can connect with the docking claw 15, so as to realize the connection of the two L-shaped flexible connection bodies through the motherboard 3, thereby saving the area of ​​the flexible connection body, reducing cost and space occupancy, and improving the connection stability between the battery protection board 1 and the motherboard 3.

[0080] like Figure 9 and Figure 10 As shown in the figure, an example of a flexible connection assembly including the aforementioned protection module 12 is illustrated. The protection module 12 can be disposed on the mating portion 112 of one of the two L-shaped flexible connection bodies.

[0081] like Figure 11As shown in the figure, an example of a flexible connection assembly including two of the aforementioned protection modules 12 is illustrated. These two protection modules 12 can be respectively disposed on the two connecting portions 111 of the two L-shaped flexible connection bodies. Optionally, not shown in the figure, the two protection modules 12 can also be respectively disposed on the two mating portions 112 of the two L-shaped flexible connection bodies.

[0082] Example 6, as Figure 12 and Figure 13 As shown in the figure, the flexible connecting body can be T-shaped, that is, the connecting part 111 and the docking part 112 are connected at the middle in the second direction F2.

[0083] In this embodiment, preferably, as follows: Figures 12 to 13 As shown, the flexible connection assembly may include multiple T-shaped flexible connection bodies, which are arranged opposite to each other. Each T-shaped flexible connection body may be provided with the connector 13, so that each T-shaped flexible connection body can be independently electrically connected to the motherboard 3.

[0084] Preferably, such as Figure 12 and Figure 13 As shown, each of the above-mentioned T-shaped flexible connecting bodies can be provided with a docking claw 15. The docking claw 15 can be provided at the end of the docking part 112 in the second direction F2 for docking of multiple T-shaped flexible connecting bodies with each other.

[0085] Preferably, such as Figure 13 As shown, the motherboard 3 can be embedded with a connecting line 31 that can connect with the docking claw 15, so as to realize the connection of multiple flexible connection bodies through the motherboard 3, thereby saving the area of ​​the flexible connection bodies, reducing costs and space occupancy, and improving the connection stability between the battery protection board 1 and the motherboard 3.

[0086] like Figure 12 and Figure 13 As shown in the figure, an example of a flexible connection assembly including the aforementioned protection module 12 is illustrated. The protection module 12 can be disposed on the mating portion 112 of one of a plurality of T-shaped flexible connection bodies.

[0087] Example 7, as Figure 14 As shown in the figure, the aforementioned flexible connection assembly may include two L-shaped flexible connection bodies and multiple T-shaped flexible connection bodies to accommodate an example of a battery comprising multiple cells 2 arranged side-by-side along the second direction F2. Specifically, as... Figure 14 As shown, the two L-shaped flexible connecting bodies can be disposed at both ends of the flexible connecting assembly in the second direction F2, and are disposed opposite to each other. Multiple T-shaped flexible connecting bodies are disposed at intervals between the two L-shaped flexible connecting bodies along the second direction F2.

[0088] like Figure 14 As shown in the figure, the above-mentioned battery includes an example of two cells 2. However, it is not limited to this. The number of cells 2 included in the battery can also be three, four, or more.

[0089] Preferably, such as Figure 14 As shown, adjacent flexible connection bodies can be connected via a connecting line 31 embedded in the motherboard 3.

[0090] Example 8, as Figure 15 As shown in the figure, some of the multiple battery cells 2 included in the battery use the battery protection board 1 provided in this embodiment, while another part of the multiple battery cells 2 included in the battery uses an existing battery protection board 1 (such as...). Figure 15 As shown, the existing battery protection board 1 includes a rigid board 011 and a flexible board 012. The electrode tab 21 of the battery cell 2 is connected to the rigid board 011, and then connected to the rigid board 011 and the main board 3 via the flexible board 012. This example demonstrates how the battery protection board 1 of this application can be compatible with existing battery protection systems. Figure 15 As shown, compared with the existing battery protection board 1, the battery protection board 1 provided in this application can greatly improve the volume of the battery cell 2.

[0091] The second aspect of this application also provides an electrical device, including the battery, motherboard 3, and battery protection board 1 as described in any of the above embodiments, thus possessing all the beneficial technical effects of the battery protection board 1, which will not be repeated here.

[0092] Preferably, such as Figure 2 , Figure 4 , Figure 6 , Figure 8 , Figure 10 , Figure 11 and Figure 13 As shown, the battery described above may include a cell 2. Preferably, as Figure 2 , Figure 4 , Figure 6 , Figure 8 , Figure 10 , Figure 11 and Figure 13 As shown, the battery cell 2 may include two tabs 21 (i.e., positive tab 21 and negative tab 21) spaced apart along the second direction F2.

[0093] However, this is not the only possibility; each cell 2 may also include three, four, five... or more tabs 21.

[0094] Preferably, such as Figure 14 and Figure 15 As shown, the battery may also include multiple cells 2 as described above, and the multiple cells 2 may be arranged side by side along the second direction F2.

[0095] Preferably, such as Figure 16 and Figure 17 As shown, the tab 21 can be bent 90° so that the tab 21 can be arranged parallel to the end face of the cell 2 where the tab 21 is located. Optionally, as... Figure 16 As shown, the battery protection board 1 can be disposed between the tab 21 and the end face where the tab 21 of the cell 2 is located, to further compress the space at the head of the cell 2. Optionally, as... Figure 17 As shown, the battery protection board 1 can also be connected to the side of the tab 21 opposite to the end face of the cell 2 where the tab 21 is located.

[0096] Alternatively, the power device may be a mobile phone, laptop, tablet, or other electronic device.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery protection plate, characterized in that, A battery protection plate for connecting a battery and a main board, the battery comprising a plurality of tabs, the battery protection plate being a flexible connecting assembly; the flexible connecting assembly comprising a flexible connecting body and a protection module, the flexible connecting body being connected with the plurality of tabs, the protection module being arranged on the flexible connecting body and being electrically connected with the flexible connecting body; projecting the flexible connecting assembly onto a surface of the main board in a direction perpendicular to the main board, a projection of the protection module falling within the main board.

2. The battery protection plate of claim 1, wherein, the flexible connecting body comprising a plurality of connecting portions, the tabs and the connecting portions both extending in a first direction; the connecting portions being arranged in one-to-one correspondence with the tabs, one end of the connecting portions in the first direction being electrically connected with the corresponding tabs.

3. The battery protection plate according to claim 2, wherein the plurality of tabs are arranged in a second direction, the second direction intersecting the first direction; the flexible connecting body further comprising an interfacing portion extending in the second direction, one end of the connecting portions away from the tabs being connected with the interfacing portion.

4. The battery protection plate of claim 3, wherein, in a connected state of the battery protection plate and the main board, at least part of the connecting portions and the interfacing portion being arranged in overlap with the main board; the protection module being arranged on the interfacing portion and / or the part of the connecting portions in overlap with the main board.

5. The battery protection plate of claim 3, wherein, the number of the interfacing portion being one, the plurality of connecting portions being connected with the interfacing portion.

6. The battery protection plate of claim 3, wherein, the number of the interfacing portion being equal to the number of the connecting portions, each of the connecting portions being connected with one of the interfacing portions.

7. The battery protection plate according to claim 6, wherein one end of the connecting portions in the second direction is connected with the interfacing portion; alternatively, a middle part of the connecting portions in the second direction is connected with the interfacing portion.

8. The battery protection plate of claim 1, wherein, the flexible connecting assembly further comprising a connector for connecting with the main board, the connector being arranged on the part of the flexible connecting body in overlap with the main board.

9. An electrical device, characterized by a battery, a main board and the battery protection plate according to any one of claims 1 to 8, the battery protection plate connecting the battery and the main board.

10. The powered device of claim 9, wherein, the battery comprising one or more battery cells, each of the battery cells comprising two or more tabs. the battery protection plate being a flexible connecting assembly.

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