Battery assembly and notebook computer

Abstract

The utility model provides a battery assembly and a notebook computer, and the battery assembly comprises a first battery cell; the second battery cell is arranged on one side of the first battery cell, and the length direction of the second battery cell is perpendicular to the length direction of the first battery cell; the third battery cell is arranged opposite to the second battery cell and is positioned in the length direction of the second battery cell; the protection piece comprises a first PCB, a second PCB and a flexible circuit board. Two opposite sides of the second PCB are respectively connected with the end part of the second battery cell and the end part of the third battery cell, one end of the flexible circuit board is connected with the second PCB, the first PCB is connected with the end part of the first battery cell, and the first PCB extends to be connected with the other end of the flexible circuit board. According to the technical scheme, the problem that the processing technology of the connection mode of the multilayer composite structure connection bar and the PCB is high in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of mobile terminals, in particular to a battery assembly and a notebook computer. Background Art

[0002] The battery is the internal battery of the laptop. Now the use of rechargeable batteries is one of the advantages of laptops over desktop computers. It can greatly facilitate the use of laptops in various environments. The battery of a laptop consists of a cell and a protection board. The cell provides energy for the battery. The protection board is used to effectively monitor the charge and discharge status of the battery and shut down the charge and discharge circuit under certain conditions to prevent damage to the battery. The cell and the protection board are connected through the cell tabs and the protection board pads.

[0003] The protection board combination structure is mainly composed of multi-layer composite structure connecting row + PCB board. The protection board composed of multi-layer composite structure connecting row + PCB board is square, L-shaped, T-shaped, etc. The square, L-shaped, T-shaped, etc. structure has a better current resistance and higher structural strength. However, the processing technology of the multi-layer composite structure connecting row + PCB board connection method is relatively high, and the finished product yield is low, making the cost relatively high. Utility Model Content

[0004] The main purpose of the utility model is to provide a battery assembly and a notebook computer to solve the problem of high processing technology of the connection method of the multi-layer composite structure connection bar + PCB board in the related art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a battery assembly is provided, including: a first battery cell; a second battery cell, which is arranged on one side of the first battery cell, and the length direction of the second battery cell is perpendicular to the length direction of the first battery cell; a third battery cell, which is arranged opposite to the second battery cell and is located in the length direction of the second battery cell; a protective member, including a first PCB board, a second PCB board and a flexible circuit board, the opposite sides of the second PCB board are respectively connected to the end of the second battery cell and the end of the third battery cell, one end of the flexible circuit board is connected to the second PCB board, the first PCB board is connected to the end of the first battery cell, and the first PCB board extends to connect with the other end of the flexible circuit board.

[0006] Further, the extension direction of the first PCB board is perpendicular to the length direction of the first battery cell, and the extension direction of the second PCB board is perpendicular to the length direction of the second battery cell; and / or, the end of the first battery cell has a first pole ear portion connected to the first PCB board, the end of the second battery cell has a second pole ear portion connected to the second PCB board, and the end of the third battery cell has a third pole ear portion connected to the second PCB board, and the second pole ear portion and the third pole ear portion are relatively located on both sides of the second PCB board.

[0007] Furthermore, the battery assembly also includes a fourth battery cell, which is arranged on a side of the third battery cell away from the second battery cell; the protective component also includes a third PCB board, which is connected to one side of the fourth battery cell, and there is a gap between the third PCB board and the first PCB board, and the third PCB board extends to one end of the flexible circuit board to be connected to the first PCB board and the second PCB board through the flexible circuit board.

[0008] Furthermore, the first battery cell, the first PCB board, the second battery cell, the second PCB board, the flexible circuit board, the fourth battery cell and the third PCB board are connected in series.

[0009] Furthermore, the fourth battery cell has a fourth pole ear portion connected to the third PCB board, the extension direction of the third PCB board is located in the length direction of the first PCB board, the extension direction of the third PCB board is perpendicular to the length direction of the fourth battery cell, the extension direction of the third PCB board is parallel to the length direction of the third battery cell, and the extension direction of the first PCB board is parallel to the length direction of the second battery cell.

[0010] Furthermore, the battery assembly also includes a shell, the side of the shell includes a first side segment, a second side segment, a third side segment, a fourth side segment, a fifth side segment and a sixth side segment connected in sequence, and a first partition, a second partition, a third partition and a fourth partition are arranged on the inner wall of the shell, the first partition is parallel to the first side segment, and the second partition, the third partition and the fourth partition are connected in sequence between the first partition and the fifth side segment; wherein part of the first side segment, part of the second side segment and part of the first partition enclose a first placement space; part of the first partition, the remaining part of the second side segment, the third side segment, the fourth side segment and the second partition enclose a second placement space The first partition is provided with a notch connecting the first placement space and the fifth placement space; the first PCB board is provided in the first placement space, the first battery cell is provided in the second placement space, the second battery cell is provided in the third placement space, the third battery cell is provided in the fourth placement space, and the second PCB board is provided in the fifth placement space.

[0011] Furthermore, the height of the first separator, the height of the second separator, the height of the third separator and the height of the fourth separator are all smaller than the thickness of the first battery cell.

[0012] Furthermore, a first supporting rib is provided on the inner wall of the outer shell, and the height of the first supporting rib is lower than the height of the first partition. The first supporting rib supports the first PCB board so that a first heat dissipation gap is provided between the first PCB board and the inner wall of the outer shell. A limiting groove is provided on one of the first PCB board and the inner wall of the outer shell, and a first limiting protrusion is provided on the other, and the first limiting protrusion cooperates with the limiting groove.

[0013] Furthermore, a second supporting rib is provided on the inner wall of the outer shell, and the height of the second supporting rib is lower than the height of the first partition. The second supporting rib supports the second PCB board so that a second heat dissipation gap is provided between the second PCB board and the inner wall of the outer shell. A second limiting protrusion and a third limiting protrusion are provided on one of the second PCB board and the inner wall of the outer shell, and a fourth limiting protrusion and a fifth limiting protrusion are provided on the other. The second limiting protrusion and the third limiting protrusion are provided along the diagonal line of the second PCB board, and the second limiting protrusion cooperates with the fourth limiting protrusion, and the third limiting protrusion cooperates with the fifth limiting protrusion.

[0014] According to another aspect of the utility model, a laptop computer is provided, comprising a battery assembly, wherein the battery assembly is the above-mentioned battery assembly.

[0015] Applying the technical solution of the utility model, the battery assembly includes: a first battery cell, a second battery cell, a third battery cell and a protective member. The second battery cell is arranged on one side of the first battery cell, and the length direction of the second battery cell is perpendicular to the length direction of the first battery cell. The third battery cell is arranged opposite to the second battery cell and is located in the length direction of the second battery cell. The protective member includes a first PCB board, a second PCB board and a flexible circuit board. The opposite sides of the second PCB board are respectively connected to the ends of the second battery cell and the third battery cell, one end of the flexible circuit board is connected to the second PCB board, the first PCB board is connected to the end of the first battery cell, and the first PCB board extends to connect with the other end of the flexible circuit board. In this way, the battery assembly of the present application uses a connection method of multiple PCB boards + flexible circuit boards, which has lower process requirements and improves the yield of finished products. Therefore, the technical solution of the present application effectively solves the problem of high processing technology of the connection method of multi-layer composite structure connection row + PCB board in the related art. Among them, the flexible circuit board plays a bridging role to transmit signals on the first PCB board and the second PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic top view of a first embodiment of a battery assembly according to the utility model is shown;

[0018] Figure 2 A schematic top view of a second embodiment of a battery assembly according to the utility model is shown;

[0019] Figure 3 Shows Figure 2 An enlarged schematic diagram of the battery assembly at A;

[0020] Figure 4 Shows Figure 2 A partial rear view schematic diagram of a first battery cell and a first PCB board of a battery assembly;

[0021] Figure 5 Shows Figure 2 A partial rear view schematic diagram of a fourth battery cell and a second PCB board of a battery assembly;

[0022] Figure 6 Shows Figure 2 A circuit diagram of a battery assembly;

[0023] Figure 7 Shows Figure 2 A schematic top view of a housing of a battery assembly;

[0024] Figure 8 Shows Figure 2 A schematic diagram of a partial three-dimensional structure of a battery assembly housing and a first PCB board;

[0025] Fig. 9 Shows Figure 2 Schematic diagram of the partial three-dimensional structure of the battery assembly shell and the second PCB board.

[0026] The above drawings include the following reference numerals:

[0027] 11. first battery cell; 111. first pole ear portion; 12. second battery cell; 121. second pole ear portion; 13. third battery cell; 131. third pole ear portion; 14. fourth battery cell; 141. fourth pole ear portion;

[0028] 21. First PCB board; 22. Second PCB board; 23. Flexible circuit board; 24. Third PCB board;

[0029] 30. housing; 31. first side segment; 32. second side segment; 33. third side segment; 34. fourth side segment; 35. fifth side segment; 36. sixth side segment;

[0030] 41. first partition; 42. second partition; 43. third partition; 44. fourth partition; 45. first supporting rib; 46. second supporting rib;

[0031] 51, first placement space; 52, second placement space; 53, third placement space; 54, fourth placement space; 55, fifth placement space;

[0032] 61. Limiting groove; 62. First limiting protrusion; 63. Second limiting protrusion; 64. Third limiting protrusion; 65. Fourth limiting protrusion; 66. Fifth limiting protrusion. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0036] like Figure 1As shown, the present application provides a battery assembly, and the first embodiment of the battery assembly includes: a first battery cell 11, a second battery cell 12, a third battery cell 13 and a protective member. The second battery cell 12 is arranged on one side of the first battery cell 11, and the length direction of the second battery cell 12 is perpendicular to the length direction of the first battery cell 11. The third battery cell 13 is arranged opposite to the second battery cell 12 and is located in the length direction of the second battery cell 12. The protective member includes a first PCB board 21, a second PCB board 22 and a flexible circuit board 23. The opposite sides of the second PCB board 22 are respectively connected to the end of the second battery cell 12 and the end of the third battery cell 13, one end of the flexible circuit board 23 is connected to the second PCB board 22, the first PCB board 21 is connected to the end of the first battery cell 11, and the first PCB board 21 extends to connect with the other end of the flexible circuit board 23.

[0037] The technical solution of the first embodiment is applied, and the second PCB board 22 is connected to the first PCB board 21 through the flexible circuit board 23. In this way, the battery assembly of this embodiment uses a connection method of multiple PCB boards + flexible circuit boards, which has low process requirements and improves the yield of finished products. Therefore, the technical solution of this embodiment effectively solves the problem of high processing technology of the connection method of multi-layer composite structure connection row + PCB board in the related art. Among them, the flexible circuit board 23 plays a bridging role to transmit signals between the first PCB board 21 and the second PCB board 22. When the monitoring instrument is used to monitor the battery assembly, the monitoring parameters of the first battery cell 11, the second battery cell 12, and the third battery cell 13 can be adjusted through the flexible circuit board 23 playing a bridging role.

[0038] like Figure 1 As shown, in order to facilitate the connection of the first PCB board 21 to the end of the first battery cell 11, the opposite sides of the second PCB board 22 are respectively connected to the ends of the second battery cell 12 and the ends of the third battery cell 13, the extension direction of the first PCB board 21 is perpendicular to the length direction of the first battery cell 11, and the extension direction of the second PCB board 22 is perpendicular to the length direction of the second battery cell 12. The end of the first battery cell 11 has a first pole ear portion 111 welded on the first PCB board 21, the end of the second battery cell 12 has a second pole ear portion 121 welded on the second PCB board 22, and the end of the third battery cell 13 has a third pole ear portion 131 welded on the second PCB board 22, and the second pole ear portion 121 and the third pole ear portion 131 are relatively located on both sides of the second PCB board 22. In this way, the battery assembly of the first embodiment is connected together by welding, the process requirements are relatively low, and the finished product yield is improved.

[0039] Specifically, the side of the second battery cell 12 in the length direction away from the second pole ear portion 121 is connected to the side of the first battery cell 11 in the width direction, so that the second battery cell 12 is arranged on the side in the width direction of the first battery cell 11; the third pole ear portion 131 of the third battery cell 13 and the second pole ear portion 121 of the second battery cell 12 are arranged opposite to each other on both sides of the second PCB board 22.

[0040] The inventors found that the battery cells in the related technology are welded on the PCB board, and the PCB board is welded on the multi-layer composite structure connecting bar. The material of the multi-layer composite structure connecting bar is copper, and the battery cell tabs are made of nickel sheets or copper-plated nickel sheets. Copper and nickel are very easy to be welded through during welding, thereby increasing the rework process, which is not conducive to the operation of the automatic line and also affects the finished product yield and processing cycle.

[0041] In order to solve the above problems, in the present application, a first pad welded to the first pole ear portion 111 is provided on the first PCB board 21, a second pad welded to the second pole ear portion 121 and a third pad welded to the third pole ear portion 131 are provided on the second PCB board 22, a fourth pad welded to the fourth pole ear portion 141 is provided on the third PCB board 24, a fifth pad welded to the flexible circuit board 23 is also provided on the first PCB board 21, a sixth pad welded to the flexible circuit board 23 is also provided on the second PCB board 22, and a seventh pad welded to the flexible circuit board 23 is also provided on the third PCB board 24. The first pad, the second pad, the third pad, the fourth pad, the fifth pad, the sixth pad, the seventh pad and the first pole ear portion 111, the second pole ear portion 121, the third pole ear portion 131 and the fourth pole ear portion 141 are all nickel sheets or copper-plated nickel sheets, which ensures the purpose of lower welding process requirements, greatly improves the finished product yield, and improves the finished product yield of the battery. At the same time, the protective component composed of multiple PCB boards + flexible circuit boards 23 has a lower cost and can also reduce battery costs.

[0042] like Figures 2 to 6As shown, in the second embodiment of the battery assembly, the difference from the first embodiment of the battery assembly is that the battery assembly further includes a fourth battery cell 14. The fourth battery cell 14 is arranged on the side of the third battery cell 13 away from the second battery cell 12, that is, the length direction of the fourth battery cell 14 can be perpendicular to the length direction of the third battery cell 13, or the width direction of the fourth battery cell 14 can be perpendicular to the length direction of the third battery cell 13; the protective member further includes a third PCB board 24, the third PCB board 24 is connected to one side of the fourth battery cell 14, there is a gap between the third PCB board 24 and the first PCB board 21, the third PCB board 24 extends to one end of the flexible circuit board 23 to be connected to the first PCB board 21 and the second PCB board 22 through the flexible circuit board 23. Specifically, the third PCB board 24 can be located in the extension direction of the first PCB board 21 so as to extend along this extension direction to be connected to one end of the flexible circuit board, the length direction of the fourth battery cell 14 is perpendicular to the length direction of the third battery cell 13, and the third PCB board 24 is connected to the end of the fourth battery cell 14. In this way, the first battery cell 11, the second battery cell 12, the third battery cell 13 and the fourth battery cell 14 together form a "ㄇ" shape. In addition, when the width direction of the fourth battery cell 14 is perpendicular to the length direction of the third battery cell 13, that is, the end of the fourth battery cell 14 is connected to the other side of the third battery cell 13 away from the second battery cell 12, and the third PCB board 24 is connected to one side of the width direction of the fourth battery cell 14, in this way, the first battery cell 11, the second battery cell 12, the third battery cell 13 and the fourth battery cell 14 together form a "┌" shape. In this way, the protective parts of the battery assembly are more resistant to current and have higher structural strength.

[0043] like Figures 2 to 6 As shown, the first battery cell 11, the first PCB board 21, the second battery cell 12, the second PCB board 22, the flexible circuit board 23, the fourth battery cell 14 and the third PCB board 24 are connected in series. In this way, the connection mode of the protective member composed of multiple PCB boards + flexible circuit boards 23 is used to replace the connection mode of the multi-layer composite structure connection row + PCB board in the related art, which is conducive to reducing the processing technology requirements, improving the finished product yield, and reducing the cost of the battery at the same time, achieving the purpose of improving production efficiency.

[0044] like Figures 2 to 6 As shown, in order to facilitate the connection of the third PCB board 24 to the end of the fourth battery cell 14, the fourth battery cell 14 has a fourth pole ear portion 141 welded to the third PCB board 24, the extension direction of the third PCB board 24 is located in the length direction of the first PCB board 21, the extension direction of the third PCB board 24 is perpendicular to the length direction of the fourth battery cell 14, the extension direction of the third PCB board 24 is parallel to the length direction of the third battery cell 13, and the extension direction of the first PCB board 21 is parallel to the length direction of the second battery cell 12. In this way, the battery assembly of the second embodiment is connected together by welding, the process requirements are relatively low, and the yield rate of the finished product is improved.

[0045] like Figure 2 , Figure 3 and Figures 7 to 9 As shown, the battery assembly further includes a housing 30, the side of which includes a first side segment 31, a second side segment 32, a third side segment 33, a fourth side segment 34, a fifth side segment 35 and a sixth side segment 36 connected in sequence. A first partition 41, a second partition 42, a third partition 43 and a fourth partition 44 are provided on the inner wall of the housing 30, the first partition 41 is parallel to the first side segment 31, and the second partition 42, the third partition 43 and the fourth partition 44 are connected in sequence between the first partition 41 and the fifth side segment 35 at intervals. In order to facilitate the reasonable arrangement of the installation positions of the first battery cell 11, the second battery cell 12, the third battery cell 13 and the protective member in the housing 30, part of the first side segment 31, part of the second side segment 32 and part of the first partition 41 form a first placement space 51; part of the first partition 41, the remaining part of the second side segment 32, the third side segment 33, the fourth side segment 34 and the second partition 42 form a second placement space 52; part of the first partition 41, the second partition 42, part of the fifth side segment 35 and the third partition 43 form a third placement space 53; the fourth partition 44, part of the fifth side segment 35, the sixth side segment 34 and the second partition 42 form a third placement space 53. The segment 36 and the remaining part of the first partition 41 form a fourth placement space 54; the third partition 43, part of the fifth side segment 35 and the fourth partition 44 form a fifth placement space 55, wherein the first partition 41 is provided with a notch connecting the first placement space 51 and the fifth placement space 55; the first PCB board 21 is arranged in the first placement space 51, the first battery cell 11 is arranged in the second placement space 52, the second battery cell 12 is arranged in the third placement space 53, the third battery cell 13 is arranged in the fourth placement space 54, and the second PCB board 22 is arranged in the fifth placement space 55.

[0046] like Figure 2 , Figure 3 and Figures 7 to 9 As shown, the height of the first separator 41, the height of the second separator 42, the height of the third separator 43 and the height of the fourth separator 44 are all less than the thickness of the first battery cell 11. In this way, the height of the first separator 41 is relatively low, which facilitates the first pole ear portion 111 to pass over the first separator 41, the height of the third separator 43 is relatively low, which facilitates the second pole ear portion 121 to pass over the third separator 43, and the height of the fourth separator 44 is relatively low, which facilitates the third pole ear portion 131 to pass over the fourth separator 44.

[0047] like Figure 2 , Figure 3 and Figures 7 to 9As shown, a first support rib 45 is also provided on the inner wall of the housing 30, and the height of the first support rib 45 is lower than the height of the first partition 41. The first support rib 45 supports the first PCB board 21, so that there is a first heat dissipation gap between the first PCB board 21 and the inner wall of the housing 30. In this way, heat dissipation is facilitated through the first heat dissipation gap. A limiting groove 61 is provided on the first PCB board 21, and a first limiting protrusion 62 is provided on the inner wall of the housing 30. The first limiting protrusion 62 is limited and matched with the limiting groove 61. In this way, the first PCB board 21 is stably limited in the first placement space 51, which is convenient for the first pole ear portion 111 to be welded on the first PCB board 21.

[0048] Of course, in an embodiment not shown in the figures, a limiting groove is provided on the inner wall of the housing, and a first limiting protrusion is provided on the first PCB board.

[0049] like Figure 2 , Figure 3 and Figures 7 to 9 As shown, the inner wall of the housing 30 is also provided with a second support rib 46, the height of the second support rib 46 is lower than the height of the first partition 41, and the second support rib 46 supports the second PCB board 22, so that there is a second heat dissipation gap between the second PCB board 22 and the inner wall of the housing 30. In this way, heat dissipation is facilitated through the second heat dissipation gap. The second PCB board 22 is provided with a second limiting protrusion 63 and a third limiting protrusion 64, and the inner wall of the housing 30 is provided with a fourth limiting protrusion 65 and a fifth limiting protrusion 66. The second limiting protrusion 63 and the third limiting protrusion 64 are arranged along the diagonal line of the second PCB board 22, the second limiting protrusion 63 and the fourth limiting protrusion 65 are limited and matched, and the third limiting protrusion 64 and the fifth limiting protrusion 66 are limited and matched. In this way, the second PCB board 22 is stably limited in the fifth placement space 55, so that the second pole ear portion 121 and the third pole ear portion 131 are both welded on the second PCB board 22.

[0050] Of course, in an embodiment not shown in the figures, a second limiting protrusion and a third limiting protrusion are provided on the inner wall of the housing, and a fourth limiting protrusion and a fifth limiting protrusion are provided on the second PCB board.

[0051] The present application also provides a laptop computer, the laptop computer includes a battery assembly, and the battery assembly is the above-mentioned battery assembly. Since the above-mentioned battery assembly can solve the problem of high processing technology of the connection method of the multi-layer composite structure connection bar + PCB board in the related art, the laptop computer with the battery assembly can solve the same technical problem, which is convenient for achieving the purpose of improving the production efficiency of the laptop computer.

[0052] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0053] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0054] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery assembly, characterized in that: include: A first battery cell (11); A second battery cell (12) is arranged on one side of the first battery cell (11), and the length direction of the second battery cell (12) is perpendicular to the length direction of the first battery cell (11); a third battery core (13), arranged opposite to the second battery core (12) and located in the length direction of the second battery core (12); A protective component comprises a first PCB board (21), a second PCB board (22) and a flexible circuit board (23), wherein opposite sides of the second PCB board (22) are respectively connected to the end of the second battery cell (12) and the end of the third battery cell (13), one end of the flexible circuit board (23) is connected to the second PCB board (22), the first PCB board (21) is connected to the end of the first battery cell (11), and the first PCB board (21) extends to be connected to the other end of the flexible circuit board (23).

2. The battery assembly according to claim 1, characterized in that: The extension direction of the first PCB board (21) is perpendicular to the length direction of the first battery cell (11), and the extension direction of the second PCB board (22) is perpendicular to the length direction of the second battery cell (12); and / or the end of the first battery cell (11) has a first pole ear portion (111) connected to the first PCB board (21), the end of the second battery cell (12) has a second pole ear portion (121) connected to the second PCB board (22), and the end of the third battery cell (13) has a third pole ear portion (131) connected to the second PCB board (22), and the second pole ear portion (121) and the third pole ear portion (131) are relatively connected to two sides of the second PCB board (22).

3. The battery assembly according to claim 1, characterized in that: The battery assembly further comprises a fourth battery cell (14), wherein the fourth battery cell (14) is arranged on a side of the third battery cell (13) away from the second battery cell (12); The protective component further comprises a third PCB board (24), the third PCB board (24) being connected to one side of the fourth battery cell (14), a gap being provided between the third PCB board (24) and the first PCB board (21), and the third PCB board (24) extending to one end of the flexible circuit board (23) so as to be connected to the first PCB board (21) and the second PCB board (22) through the flexible circuit board (23).

4. The battery assembly according to claim 3, characterized in that: The first battery cell (11), the first PCB board (21), the second battery cell (12), the second PCB board (22), the flexible circuit board (23), the fourth battery cell (14) and the third PCB board (24) are connected in series.

5. The battery assembly according to claim 3, characterized in that: The fourth battery cell (14) has a fourth pole ear portion (141) connected to the third PCB board (24); the extension direction of the third PCB board (24) is located in the length direction of the first PCB board (21); the extension direction of the third PCB board (24) is perpendicular to the length direction of the fourth battery cell (14); the extension direction of the third PCB board (24) is parallel to the length direction of the third battery cell (13); and the extension direction of the first PCB board (21) is parallel to the length direction of the second battery cell (12).

6. The battery assembly according to claim 1, characterized in that: The battery assembly further comprises a shell (30), the side of the shell (30) comprising a first side segment (31), a second side segment (32), a third side segment (33), a fourth side segment (34), a fifth side segment (35) and a sixth side segment (36) which are connected in sequence, and a first partition plate (41), a second partition plate (42), a third partition plate (43) and a fourth partition plate (44) are arranged on the inner wall of the shell (30), the first partition plate (41) is parallel to the first side segment (31), and the second partition plate (42), the third partition plate (43) and the fourth partition plate (44) are connected in sequence and spaced apart between the first partition plate (41) and the fifth side segment (35); Part of the first side segment (31), part of the second side segment (32) and part of the first partition (41) enclose a first placement space (51); A portion of the first partition (41), the remaining portion of the second side segment (32), the third side segment (33), the fourth side segment (34) and the second partition (42) form a second placement space (52); A portion of the first partition (41), the second partition (42), a portion of the fifth side segment (35) and the third partition (43) enclose a third placement space (53); The fourth partition (44), part of the fifth side segment (35), the sixth side segment (36) and the remaining part of the first partition (41) form a fourth placement space (54); The third partition (43), part of the fifth side segment (35) and the fourth partition (44) enclose a fifth placement space (55), wherein the first partition (41) is provided with a notch connecting the first placement space (51) and the fifth placement space (55); The first PCB board (21) is arranged in the first placement space (51), the first battery cell (11) is arranged in the second placement space (52), the second battery cell (12) is arranged in the third placement space (53), the third battery cell (13) is arranged in the fourth placement space (54), and the second PCB board (22) is arranged in the fifth placement space (55).

7. The battery assembly according to claim 6, characterized in that: The height of the first separator (41), the height of the second separator (42), the height of the third separator (43) and the height of the fourth separator (44) are all smaller than the thickness of the first battery cell (11).

8. The battery assembly according to claim 6, characterized in that: A first supporting rib (45) is also provided on the inner wall of the shell (30), wherein the height of the first supporting rib (45) is lower than the height of the first partition (41), and the first supporting rib (45) supports the first PCB board (21) so that a first heat dissipation gap is provided between the first PCB board (21) and the inner wall of the shell (30), and a limiting groove (61) is provided on one of the first PCB board (21) and the inner wall of the shell (30), and a first limiting protrusion (62) is provided on the other, and the first limiting protrusion (62) is matched with the limiting groove (61) in a limiting manner.

9. The battery assembly according to claim 6, characterized in that: A second supporting rib (46) is also provided on the inner wall of the shell (30); the height of the second supporting rib (46) is lower than the height of the first partition (41); the second supporting rib (46) supports the second PCB board (22) so that a second heat dissipation gap is provided between the second PCB board (22) and the inner wall of the shell (30); a second limiting protrusion (63) and a third limiting protrusion (64) are provided on one of the second PCB board (22) and the inner wall of the shell (30); a fourth limiting protrusion (65) and a fifth limiting protrusion (66) are provided on the other; the second limiting protrusion (63) and the third limiting protrusion (64) are provided along the diagonal line of the second PCB board (22); the second limiting protrusion (63) and the fourth limiting protrusion (65) are limited in cooperation with each other; and the third limiting protrusion (64) and the fifth limiting protrusion (66) are limited in cooperation with each other.

10. A notebook computer, comprising a battery assembly, characterized in that: The battery assembly is the battery assembly according to any one of claims 1 to 9.

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