A battery pack

Abstract

The utility model relates to battery manufacturing technology field, concretely disclose a kind of battery package, including liquid cooling plate, multiple electric core monomer, second adhesive layer and multiple side plate structure;Multiple electric core monomer is stacked along the first direction, and the liquid cooling plate is located in the side of electric core monomer along third direction;Second adhesive layer is connected between electric core monomer and liquid cooling plate;Side plate structure includes main plate body and first plate body, and the electric core monomer is equipped with main plate body in the opposite side along second direction, and the first plate body is connected in the side of main plate body in third direction, and the first plate body is also connected with liquid cooling plate, and at least part of the first plate body extends between electric core monomer and liquid cooling plate.The utility model can utilize first plate body to limit the gap between electric core monomer and liquid cooling plate, and then limit the thickness of second adhesive layer, play the role of control glue amount, improve battery manufacturing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a battery pack. Background Technology

[0002] Power batteries are typically assembled using module or CTP (Cell-to-Pack) structures. For traditional module-based power batteries, side plates are usually used to encapsulate and fix a number of cells. The inside of the side plate is glued to the cells inside the module. Alternatively, die-cut plastic plates are glued to the sides of each row of cells inside the module to achieve a fixed connection for each cell. However, for power batteries, sometimes it is necessary to apply adhesive to the bottom of the cells to attach them to a liquid cooling plate for cooling / heating management. Controlling the amount of adhesive applied requires structurally limiting the adhesive thickness using adhesive strips, which is cumbersome and detrimental to improving battery manufacturing efficiency. Existing side plate structures have a single function and cannot simultaneously limit the adhesive thickness. Utility Model Content

[0003] The technical problem to be solved by this utility model is: how to solve the problem that the existing side panels have only one function and cannot take into account the limitation of glue thickness.

[0004] To solve the above-mentioned technical problems, this utility model provides a battery pack having a first direction, a second direction, and a third direction that are perpendicular to each other, including:

[0005] Liquid cooling plate;

[0006] Multiple battery cells are stacked along the first direction, and the liquid cooling plate is located on one side of the battery cell along the third direction;

[0007] A second adhesive layer is applied between the battery cell and the liquid cooling plate, enabling a third-party thermally conductive connection between the battery cell and the liquid cooling plate; and...

[0008] The battery cell has multiple side plate structures, each side plate structure including a main plate and a first plate. The main plate is provided on both sides of the battery cell in the second direction. The first plate is connected to the main plate on one side of the main plate in the third direction. The first plate is also connected to the liquid cooling plate, and at least a portion of the first plate extends in the second direction between the battery cell and the liquid cooling plate.

[0009] More preferably, the side plate structure further includes:

[0010] The fins are disposed on the side of the main body facing the individual battery cells, and the fins extend at least partially along the second direction between two adjacent individual battery cells, such that the two adjacent individual battery cells are spaced apart along the first direction.

[0011] More preferably, there are at least two fins, and adjacent fins are arranged at intervals along the first direction, and a glue groove is formed between adjacent fins, and at least a portion of the battery cell is embedded in the glue groove along the second direction;

[0012] The battery pack also includes:

[0013] The first adhesive layer is disposed in the glue application groove and is located between the main body and the individual battery cell along the second direction.

[0014] More preferably, the side plate structure further includes:

[0015] A raised strip is provided on the side of the main body facing the individual battery cell, and the raised strip is located in the glue-applying groove; the raised strip extends along the first direction, and along the first direction, the two ends of the raised strip are respectively connected to two adjacent fins.

[0016] More preferably, the side plate structure further includes:

[0017] The fins are provided with bumps on opposite sides along the first direction, and the projection of the bumps is at least partially located on the individual battery cell along the first direction.

[0018] More preferably, the side plate structure further includes:

[0019] The second plate is connected to the main plate. Along the third direction, the second plate is spaced apart from the first plate. At least a portion of the second plate protrudes towards the battery cell along the second direction. Along the third direction, at least a portion of the projection of the second plate is located on the battery cell. The two ends of the fin along the third direction are respectively connected to the second plate and the first plate.

[0020] More preferably, the side plate structure further includes:

[0021] The main body has end plates at opposite ends along the first direction, and the end plates extend along the second direction toward the cell. Along the third direction, the two ends of the end plates are connected to the first plate and the second plate, respectively.

[0022] Wherein, along the second direction, the extension length of the end plate is greater than the extension length of the fin.

[0023] More preferably, the side plate structure further includes:

[0024] A support portion, connected to the second plate, is located on the side of the second plate away from the fins along the third direction, and at least a portion of the support portion extends beyond the top surface of the battery cell.

[0025] More preferably, the battery pack further includes:

[0026] The top cover and the liquid cooling plate are spaced apart along the third direction, and the battery cell is disposed between the top cover and the liquid cooling plate. Along the second direction, the top cover is at least partially connected to the support portion.

[0027] More preferably, the support portion is provided with mounting holes;

[0028] The battery pack also includes:

[0029] The wiring harness is electrically connected to the individual battery cell; and,

[0030] The fastener includes a mounting base and a cable tie, wherein the mounting base is at least partially fastened to the mounting hole, the cable tie is connected to the mounting base, and the wire harness is fixedly connected to the cable tie.

[0031] Compared with the prior art, the battery pack provided by this utility model has the following advantages:

[0032] The side plate structure of this utility model includes a main plate and a first plate. The first plate extends at least partially between the battery cell and the liquid cooling plate, thereby limiting the gap between the battery cell and the liquid cooling plate, and thus limiting the thickness of the second adhesive layer, which plays a role in controlling the amount of adhesive. There is no need to use adhesive strips to limit the adhesive thickness, which can improve the battery manufacturing efficiency. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the battery pack described in this utility model.

[0034] Figure 2 This is an exploded view of the battery pack described in this utility model.

[0035] Figure 3 This is a schematic diagram of the side plate structure described in this utility model.

[0036] Figure 4 This is a utility model Figure 3 Enlarged diagram of point A in the middle.

[0037] Figure 5 This is a front view of the side plate structure described in this utility model.

[0038] Figure 6 This is a utility model Figure 5 A sectional view of section BB in the middle.

[0039] Figure 7 This is a top view of the battery cell, side plate structure, and liquid cooling plate described in this utility model.

[0040] Figure 8 This is a utility model Figure 7 A sectional view of section CC.

[0041] Figure 9 This is a utility model Figure 8 Enlarged diagram of point D in the middle.

[0042] Figure 10 This is a utility model Figure 8 A sectional view of section EE.

[0043] Figure 11 This is a utility model Figure 10 Enlarged schematic diagram at point F in the middle.

[0044] Figure 12 This is an assembly drawing of the top cover, side plate structure and wiring harness described in this utility model.

[0045] Figure 13 This is a top view of the wire harness described in this utility model.

[0046] Figure 14 This is a schematic diagram of the assembly of the fixing base and the support part of this utility model.

[0047] Figure label:

[0048] 10. Side panel structure; 110. Main body; 111. Raised strip; 120. Fin; 121. Protrusion; 122. Glue groove; 130. First plate; 140. Second plate; 150. End plate; 160. Support part; 161. Mounting hole;

[0049] 20. Liquid cooling plate;

[0050] 30. Individual battery cell;

[0051] 40. Top cover; 41. Manifold; 42. Manifold connector;

[0052] 50. Wiring harness;

[0053] 60. Fastener; 61. Mounting base; 62. Cable tie;

[0054] 70. First adhesive layer;

[0055] 80. Second adhesive layer;

[0056] 90. Large gap between two adjacent battery cells. Detailed Implementation

[0057] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0058] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings are used only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0059] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] Furthermore, unless otherwise explicitly 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 utility model based on the specific circumstances.

[0061] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0063] like Figure 1 As shown, this embodiment provides a battery pack having a first direction X, a second direction Y, and a third direction Z that are perpendicular to each other.

[0064] In the specific implementation method, please refer to Figure 6 , Figure 7 and Figure 8 The battery pack includes a side plate structure 10, a liquid cooling plate 20, a second adhesive layer 80, and multiple battery cells 30. The side plate structure 10 has multiple battery cells 30 stacked along a first direction X, and the liquid cooling plate 20 is located on one side of the battery cell 30 along a third direction Z to support the battery cell 30. The second adhesive layer 80 connects the battery cell 30 and the liquid cooling plate 20, making the battery cell 30 and the liquid cooling plate 20 thermally connected in the third direction Z, thereby realizing the cooling / heating management of the battery cell 30 to ensure the performance of the battery cell 30. The side plate structure 10 is connected to the liquid cooling plate 20 and is located on opposite sides of the battery cell 30 along a second direction Y to fix the battery cell 30 along the second direction Y.

[0065] In some implementations, such as Figure 2 and Figure 3 As shown, the side plate structure 10 includes a main plate 110 and a first plate 130. The main plate 110 is provided on both sides of the battery cell 30 along the second direction Y, and the main plate 110 can fix the battery cell 30 in the second direction Y. The first plate 130 is connected to the main plate 110 on the third direction Z side. The first plate 130 is also connected to the liquid cooling plate 20, and at least a portion of the first plate 130 extends along the second direction Y between the battery cell 30 and the liquid cooling plate 20. By extending at least a portion of the first plate 130 between the battery cell 30 and the liquid cooling plate 20, the gap between the battery cell 31 and the liquid cooling plate 20 can be limited, thereby limiting the thickness of the second adhesive layer 80 and playing the role of controlling the amount of adhesive. It is no longer necessary to use adhesive strips to limit the adhesive thickness, which can improve the battery manufacturing efficiency.

[0066] In some embodiments, since the battery cell 31 expands during its lifespan, a large expansion space is typically reserved between two adjacent battery cells 31 along the first direction X to facilitate the expansion and contraction of the battery cell 31 during its cyclic process. For this purpose, the side plate structure 10 also includes fins 120. (Please refer to...) Figures 2-5 as well as Figures 9-10 Fins 120 are disposed on the side of the main body 110 facing the individual cell 30. The fins 120 extend at least partially along the second direction Y between two adjacent individual cell 30s, such that the two adjacent individual cell 30s are spaced apart along the first direction X, forming a large surface gap 90 between them. On one hand, the fins 120 can satisfy the fixing function of each individual cell 31; on the other hand, the fins 120 can limit the large surface gap 90 between two adjacent individual cell 31s, thus controlling the large surface expansion gap between them. This facilitates the expansion and contraction of the cell casing during its cycle life, eliminating the need for additional structural components such as a U-shaped frame, and reducing battery manufacturing costs.

[0067] In some embodiments, the side plate structure 10 is an integral structure formed by injection molding or die casting, which can be assembled with the battery cell 31 in one step, improving battery assembly efficiency. It should be noted that injection molding or die casting are existing processes and will not be described in detail here.

[0068] In some implementations, such as Figures 1-3 As shown, in order to fix multiple battery cells 31, there are at least two fins 120. Along the first direction X, two adjacent fins 120 are arranged at intervals, and a glue groove 122 is formed between two adjacent fins 120. At least a portion of the battery cell 30 is embedded in the glue groove 122 along the second direction Y. The fins 120 can restrict the movement of the battery cell 31 in the first direction X, thereby fixing the battery cell 31.

[0069] In some embodiments, to achieve a fixed connection between the side plate structure 10 and the individual battery cell 31, the battery pack further includes a first adhesive layer 70, such as... Figure 1 and Figure 10 As shown, the first adhesive layer 70 is disposed in the adhesive groove 122 and is located between the main board body 110 and the battery cell 30 along the second direction Y, so as to realize the fixed connection between the main board body 110 and the battery cell 30 and improve the performance of the entire battery pack.

[0070] In some implementations, such as Figure 3As shown, the side panel structure 10 also includes a protrusion 111, which is located on the side of the main board 110 facing the battery cell 30 and is situated within the glue applicator groove 122. The protrusion 111 limits the gap between the main board 110 and the battery cell 30, thereby limiting the thickness of the first adhesive layer 70 and controlling the amount of adhesive, eliminating the need for a glue-limiting strip to restrict the adhesive thickness.

[0071] In some embodiments, the protrusion 111 extends along the first direction X, and along the first direction X, the two ends of the protrusion 111 are respectively connected to two adjacent fins 120; thus, the protrusion 111 can play a reinforcing role, improve the connection strength between the fins 120 and the main body 110, and reduce the degree of deformation of the fins 120 along the first direction X.

[0072] In some embodiments, to ensure the uniformity of the thickness of the first adhesive layer 70 in each glue dispensing groove 122, at least two protrusions 111 are provided in each glue dispensing groove 122, and the at least two protrusions 111 are spaced apart along the third direction Z.

[0073] In some embodiments, the side plate structure 10 further includes protrusions 121. The fins 120 are provided with protrusions 121 on opposite sides along the first direction X. The projection of the protrusions 121 is at least partially located on the battery cell 30 along the first direction X. Thus, when the battery cell 30 is located in the glue groove 122, the protrusions 121 can create a gap between the battery cell 30 and the fins 120, forming an overflow glue channel, thereby ensuring the uniformity of the thickness of the first glue layer 70 and improving the assembly accuracy of the side plate structure 10 and the battery cell 30.

[0074] In some implementations, such as Figure 2 Combination Figure 3 As shown, the side plate structure 10 also includes a second plate 140 connected to the main plate 110. Along the third direction Z, the second plate 140 and the first plate 130 are spaced apart. At least a portion of the second plate 140 protrudes along the second direction Y toward the direction close to the cell 30. Along the third direction Z, at least a portion of the projection of the second plate 140 is located on the cell 30. Thus, the main plate 110, the first plate 130, the second plate 140 and the adjacent fins 120 together form a glue groove 122 to achieve full enclosure of the side end of the cell 30, further improving the assembly accuracy of the side plate structure 10 and the cell 30.

[0075] In some embodiments, the two ends of the fin 120 along the third direction Z are respectively connected to the second plate 140 and the first plate 130, which can further improve the connection strength between the fin 120 and the main plate 110.

[0076] In some embodiments, the side plate structure 10 further includes an end plate 150. The main body 110 is provided with end plates 150 at opposite ends along the first direction X. The end plates 150 extend along the second direction Y toward the direction close to the cell 30. Along the third direction Z, the two ends of the end plates 150 are connected to the first plate 130 and the second plate 140, respectively. The end plates 150 can further improve the connection strength between the first plate 130, the second plate 140 and the main body 110. At the same time, they can act as fins 120 to provide support and positioning for the cell 30, ensuring the assembly accuracy of the side plate structure 10 and the cell 30.

[0077] In some embodiments, the extension length of the end plate 150 along the second direction Y is greater than the extension length of the fin 120, thereby increasing the contact area between the battery cell 30 and the side plate structure 10 from the second direction Y, further improving the assembly accuracy of the side plate structure 10 and the battery cell 30, and the extended end plate 150 can provide good protection for the battery cell 30.

[0078] In some embodiments, the side plate structure 10 further includes a support portion 160 and a top cover 40. The support portion 160 is connected to the second plate 140. Along the third direction Z, the support portion 160 is located on the side of the second plate 140 away from the fins 120, and at least a portion of the support portion 160 extends beyond the top surface of the battery cell 30. The top cover 40 and the liquid cooling plate 20 are spaced apart along the third direction Z. The battery cell 30 is disposed between the top cover 40 and the liquid cooling plate 20. Along the second direction Y, at least a portion of the top cover 40 is connected to the support portion 160. Thus, at least a portion of the support portion 160 extends beyond the top surface of the battery cell 30, so that after the top cover 40 is connected, a reserved space can be formed between it and the battery cell 30 to facilitate the installation of the manifold 41.

[0079] It should be noted that each battery cell 30 has a positive terminal and a negative terminal, and the current collector 41 is electrically connected to the positive terminal or the negative terminal to realize the series or parallel connection of two adjacent battery cells 30.

[0080] In some embodiments, along the third direction Z, a current collector 42 is provided on the side of the top cover 40 away from the individual battery cell 30, such as... Figure 11 and Figure 12 As shown, the current collector 42 is connected to the current collector 41 to enable the battery pack to conduct circuits with external devices.

[0081] In some implementations, such as Figure 12 As shown, the battery pack also includes a wiring harness 50, one end of which is electrically connected to the current collector 42, and the other end is electrically connected to an external device to enable the battery pack to conduct circuits with the external device.

[0082] In some implementations, such as Figures 12-14As shown, the support part 160 is provided with mounting holes 161; the battery pack also includes a fixing member 60, which includes a fixing seat 61 and a cable tie 62. The fixing seat 61 is at least partially fastened to the mounting hole 161, and the cable tie 62 is connected to the fixing seat 61. The wire harness 50 is fixedly connected to the cable tie 62. In this way, the cable tie 62 can be used to quickly and easily fix the wire harness 50, improving efficiency. The cooperation between the mounting hole 161 and the fixing seat 61 can flexibly adjust the fixing position according to the thickness and shape of the wire harness 50 to meet different wiring requirements.

[0083] In summary, the battery pack provided by this utility model includes a side plate structure 10 with multiple functions;

[0084] Firstly, the first plate 130 extends at least partially between the battery cell 30 and the liquid cooling plate 20, thereby limiting the gap between the battery cell 31 and the liquid cooling plate 20, and thus limiting the thickness of the second adhesive layer 80.

[0085] Secondly, by setting the protrusion 111, the gap between the main board body 110 and the cell 30 can be limited, thereby limiting the thickness of the first adhesive layer 70 and controlling the amount of adhesive. There is no need to use adhesive strips to limit the adhesive thickness, which can improve the battery manufacturing efficiency.

[0086] Third, the fins 120 can fix each cell 31 and limit the large surface gap 90 between two adjacent cells, thus controlling the large surface expansion gap between cells 31. This facilitates the expansion and contraction of the cell casing during the cycle of the cell's life cycle, eliminating the need for additional structural components such as a U-shaped frame and reducing battery manufacturing costs.

[0087] Fourth, by providing mounting holes 161 in the support part 160, and in conjunction with the fixing base 61 and cable tie 62, different wiring requirements can be met.

[0088] The above description is merely a preferred embodiment of this utility model. It should be noted that, for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model. The basic principles, main features, and advantages of this utility model have been shown and described above. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above preferred embodiments. The embodiments should be considered exemplary and non-limiting. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included within this utility model.

[0089] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A battery pack having a first direction (X), a second direction (Y), and a third direction (Z) that are mutually perpendicular, characterized in that, include: Liquid cooling plate (20); Multiple battery cells (30) are stacked along the first direction (X), and the liquid cooling plate (20) is located on one side of the battery cell (30) along the third direction (Z); A second adhesive layer (80) is formed between the battery cell (30) and the liquid cooling plate (20); and, Multiple side plate structures (10) are provided, each side plate structure (10) including a main plate body (110) and a first plate body (130). The main plate body (110) is provided on both sides opposite to each other along the second direction (Y) of the battery cell (30). The first plate body (130) is connected to the main plate body (110) on one side of the third direction (Z). The first plate body (130) is also connected to the liquid cooling plate (20), and at least a portion of the first plate body (130) extends along the second direction (Y) between the battery cell (30) and the liquid cooling plate (20).

2. The battery pack according to claim 1, characterized in that, The side plate structure (10) also includes: Fins (120) are disposed on the side of the main body (110) facing the battery cell (30). The fins (120) extend at least partially along the second direction (Y) between two adjacent battery cells (30), such that two adjacent battery cells (30) are spaced apart along the first direction (X).

3. A battery pack according to claim 2, characterized in that, There are at least two fins (120), and two adjacent fins (120) are arranged at intervals along the first direction (X), and a glue groove (122) is formed between two adjacent fins (120). At least a portion of the battery cell (30) is embedded in the glue groove (122) along the second direction (Y). The battery pack also includes: The first adhesive layer (70) is disposed in the glue application groove (122) and is located between the main body (110) and the battery cell (30) along the second direction (Y).

4. A battery pack according to claim 3, characterized in that, The side plate structure (10) also includes: A protruding strip (111) is provided on the side of the main body (110) facing the battery cell (30), and the protruding strip (111) is located in the glue groove (122); the protruding strip (111) extends along the first direction (X), and along the first direction (X), the two ends of the protruding strip (111) are respectively connected to two adjacent fins (120).

5. A battery pack according to claim 2, characterized in that, The side plate structure (10) also includes: The fin (120) is provided with the bump (121) on both sides opposite to each other along the first direction (X), and the projection of the bump (121) is at least partially located on the cell (30) along the first direction (X).

6. A battery pack according to claim 2, characterized in that, The side plate structure (10) also includes: The second plate (140) is connected to the main plate (110) and is spaced apart from the first plate (130) along the third direction (Z). At least a portion of the second plate (140) protrudes towards the cell (30) along the second direction (Y). At least a portion of the projection of the second plate (140) is located on the cell (30) along the third direction (Z). The two ends of the fin (120) along the third direction (Z) are respectively connected to the second plate (140) and the first plate (130).

7. A battery pack according to claim 6, characterized in that, The side plate structure (10) also includes: End plate (150): The main body (110) is provided with end plates (150) at opposite ends along the first direction (X). The end plates (150) extend along the second direction (Y) toward the direction close to the cell (30). Along the third direction (Z), the two ends of the end plates (150) are respectively connected to the first plate body (130) and the second plate body (140). Along the second direction (Y), the extension length of the end plate (150) is greater than the extension length of the fin (120).

8. A battery pack according to claim 6, characterized in that, The side plate structure (10) also includes: A support portion (160) is connected to the second plate (140) along the third direction (Z). The support portion (160) is located on the side of the second plate (140) away from the fin (120), and at least a portion of the support portion (160) extends beyond the top surface of the cell (30).

9. A battery pack according to claim 8, characterized in that, The battery pack also includes: The top cover (40) and the liquid cooling plate (20) are spaced apart along the third direction (Z), and the battery cell (30) is disposed between the top cover (40) and the liquid cooling plate (20). Along the second direction (Y), the top cover (40) is at least partially connected to the support part (160).

10. A battery pack according to claim 8, characterized in that, The support part (160) is provided with mounting holes (161); The battery pack also includes: The wiring harness (50) is electrically connected to the battery cell (30); and, The fastener (60) includes a fixing base (61) and a cable tie (62), wherein the fixing base (61) is at least partially fastened to the mounting hole (161), the cable tie (62) is connected to the fixing base (61), and the wire harness (50) is fixedly connected to the cable tie (62).

Images