CTB battery pack and vehicle having the same

Abstract

The utility model discloses a CTB battery pack and vehicle with it, include: insulating lower casing has the electric core accommodating groove for accommodating electric core cluster, electric core cluster, adhesion fixed in the electric core accommodating groove, insulating partition, adhesion fixed in the one side of electric core cluster away from insulating lower casing, high pressure connecting portion is located in the one side of insulating partition away from electric core cluster, and high pressure connecting portion has the first connecting portion with the high pressure electrical part connection in the car body and the second connecting portion with electric core cluster connection. The utility model discloses a CTB battery pack through the adhesion fixed electric core cluster in the electric core accommodating groove, has saved the traditional electric core module frame, and will high pressure connecting portion from the traditional " upper cover " position integration to the one side of insulating partition, has eliminated the redundant space between upper cover and electric core module, makes the size (thickness) of whole battery pack in vertical direction can make thinner. In addition, through insulating partition, high pressure connecting portion is physically isolated with electric core, effectively reduces or avoids the heat runaway.

Description

Technical Field

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

[0002] With the continuous development of CTB (Cell to Body) technology, which integrates the battery pack with the vehicle body, the space requirements in the overall vehicle layout, especially the compression requirements in the Z-axis height, are becoming increasingly stringent, posing greater challenges to the internal structural integration design of the battery system. Against this backdrop, the layout and integration of high-voltage connection components and the design of their interface with the vehicle body must not only meet the assembly feasibility under extremely limited space, but also take into account maintainability, thermal runaway protection capabilities, and mechanical stability. Simultaneously, the corresponding manufacturing processes and engineering feasibility must also be ensured.

[0003] Currently, existing technologies often employ multi-layered insulating sleeves to cover high-voltage connectors (such as copper busbars), and use thermally insulating materials like mica to directly adhere the connectors to the cell surface. This method is prone to detachment between the mica and copper busbars under harsh driving conditions due to vibration, causing vibration in the high-voltage connectors and increasing the risk of thermal runaway and high-voltage arcing. Another common practice is to use long copper busbars directly placed on top of the Z-axis cell, which not only occupies valuable vertical space but also, due to the large span of the busbars, is prone to resonance under mechanical vibration, leading to structural fatigue or even connection failure. Furthermore, existing technologies also include methods that use metal fasteners such as strips to directly bind high-voltage connectors to the vehicle body beam. In this structure, if the strip becomes loose or breaks, the metal strip may come into contact with the beam, causing insulation damage, exposing the copper busbars, triggering high-voltage arcing, and seriously threatening system safety. On the other hand, existing high-voltage connections and related structural components are mostly arranged independently and separately, failing to form an effective structural complement to the battery pack and vehicle body. This results in limited contribution to the modal improvement of the overall CTB system and makes it difficult to meet the requirements of high rigidity integration and dynamic stability. Utility Model Content

[0004] This invention proposes a CTB battery pack and a vehicle having the same, in order to at least partially solve the above-mentioned problems.

[0005] In a first aspect, embodiments of this utility model disclose a CTB battery pack, comprising:

[0006] The insulating lower housing has a cell receiving slot for accommodating the cell cluster;

[0007] The battery cell clusters are bonded and fixed inside the battery cell receiving slots;

[0008] An insulating partition is bonded and fixed to the side of the battery cell cluster away from the lower insulating housing;

[0009] The high-voltage connection part is located on the side of the insulating partition away from the battery cell cluster. The high-voltage connection part has a first connection part that connects to the high-voltage electrical components in the vehicle body and a second connection part that connects to the battery cell cluster.

[0010] By adopting the above technical solution, the CTB battery pack of this utility model eliminates the need for a traditional cell module frame by bonding and fixing the cell clusters within the cell receiving slot. Furthermore, the high-voltage connection is integrated from the traditional "top cover" position to the side of the insulating separator, eliminating redundant space between the "top cover" and the cell clusters. This allows the entire battery pack to be made thinner in the Z-direction (thickness), thus occupying less space in the Z-direction. In addition, the insulating separator physically isolates the high-voltage connection from the cells, effectively reducing or avoiding the risk of heat propagation to the cells caused by high-voltage connection failures (such as short circuits or arcing). It also eliminates the need to cover the high-voltage connection with heat-insulating material, reducing the Z-direction height and avoiding the defect of heat-insulating material detaching from the high-voltage connection. Moreover, the direct bonding of the insulating separator to the cell module further reduces the Z-direction space occupied.

[0011] According to another specific embodiment of the present invention, the cell cluster includes a plurality of cell modules arranged side by side along a first direction of the insulating lower housing; the insulating separator includes a plurality of insulating separators, which are correspondingly arranged with the plurality of cell modules; the CTB battery pack also includes a pull strip, which extends along the first direction and is disposed above the plurality of insulating separators, and the pull strip is snapped and fixed with the plurality of insulating separators.

[0012] According to another specific embodiment of the present invention, it further includes: a slot formed in the insulating partition, wherein the two ends of the pull strip are respectively formed with claws extending downward toward the insulating partition, and the claws at both ends of the pull strip are correspondingly engaged in the slots of the multiple insulating partitions; the slots are filled with an adhesive that bonds the claws to the slot wall.

[0013] According to another specific embodiment of the present invention, the part of the pull strip is recessed in the direction away from the insulating partition to form a groove, and the groove is filled with an adhesive for bonding the pull strip and the insulating partition.

[0014] According to another specific embodiment of the present invention, a glue injection groove is provided on the side of the pull strip facing the vehicle body, and the glue injection groove is used to fill the glue that bonds the pull strip to the vehicle body.

[0015] According to another specific embodiment of the present invention, the insulating partition is provided with first limiting plates at positions on both sides of the extension direction of the corresponding pull strip, and the pull strip is located in the limiting space between the two first limiting plates.

[0016] According to another specific embodiment of the present invention, the insulating partition is provided with second limiting plates at positions on both sides of the extension direction of the corresponding high voltage connection part, and the high voltage connection part is located in the limiting space between the two second limiting plates.

[0017] According to another specific embodiment of the present invention, it further includes: a high-voltage connecting post fixing groove for fixing the high-voltage connecting post, the high-voltage connecting post fixing groove being disposed on the side of the insulating partition away from the battery cell cluster; an adhesive potting groove surrounding the high-voltage connecting post fixing groove, the adhesive potting groove being used to fill the adhesive that bonds the high-voltage connecting post to the groove wall of the adhesive potting groove; the adhesive potting groove being located at the end side in the extension direction of the high-voltage connecting part to limit the high-voltage connecting part.

[0018] According to another specific embodiment of the present invention, it further includes: a flexible circuit board disposed between the battery cell cluster and the insulating partition, wherein the insulating partition is bent in a direction away from the flexible circuit board at the position corresponding to the flexible circuit board and covers the flexible circuit board.

[0019] Secondly, an embodiment of this utility model discloses a vehicle including the aforementioned CTB battery pack. Attached Figure Description

[0020] Figure 1 A three-dimensional structural diagram of the CTB battery pack in an embodiment of this utility model is shown.

[0021] Figure 2 This is a partially enlarged schematic diagram of the high-voltage connection area of ​​the CTB battery pack in an embodiment of the present invention;

[0022] Figure 3 A plan view of an insulating partition according to an embodiment of the present invention is shown;

[0023] Figure 4 This diagram illustrates a three-dimensional structure of an insulating partition according to an embodiment of the present invention.

[0024] Figure 5 This invention illustrates an embodiment of the present invention. Figure 4 A magnified view of a portion of S1 in the middle;

[0025] Figure 6 This is a side view of the pull bar in an embodiment of the present invention.

[0026] Figure 7 This invention illustrates an embodiment of the present invention. Figure 6 A magnified view of a portion of point S4 in the middle;

[0027] Figure 8 This diagram illustrates the position of the adhesive on the groove wall of the bonding strip and the slot in an embodiment of the present invention.

[0028] Figure 9 This invention illustrates an embodiment of the present invention. Figure 6 A magnified view of a portion of point S3 in the middle;

[0029] Figure 10 A three-dimensional structural schematic diagram of another insulating partition in an embodiment of this utility model is shown;

[0030] Figure 11 This invention illustrates an embodiment of the present invention. Figure 10 A magnified view of a portion of point S5 in the middle;

[0031] Figure 12 This invention illustrates an embodiment of the present invention. Figure 4 A magnified view of a portion of point S2 in the middle;

[0032] Figure 13 This diagram illustrates the structure of the insulating partition at the flexible circuit board in an embodiment of the present invention.

[0033] Figure label:

[0034] 1. Insulating lower housing; 2. Battery cell cluster; 21. Battery cell module; 3. Insulating partition; 30. Slot; 31. First limiting plate; 32. Second limiting plate; 4. High voltage connection part; 41. Second connection part; 5. Pull bar; 51. Claw; 52. Groove; 6. High voltage connection post; 7. Glue potting groove; 8. Flexible circuit board. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0036] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0038] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0040] Firstly, reference Figure 1 , Figure 2 As shown, an embodiment of this utility model provides a CTB battery pack, including: an insulating lower housing 1, a cell cluster 2, an insulating separator 3, and a high-voltage connection part 4. The insulating lower housing 1 has a cell receiving groove for accommodating the cell cluster 2; the cell cluster 2 is bonded and fixed in the cell receiving groove, and the insulating separator 3 is bonded and fixed to the side of the cell cluster 2 away from the insulating lower housing 1; the high-voltage connection part 4 is provided on the side of the insulating separator 3 away from the cell cluster 2, and the high-voltage connection part 4 has a first connection part that connects to high-voltage electrical components (not shown in the figure) in the vehicle body and a second connection part 41 that connects to the cell cluster 2.

[0041] Through the above methods, the CTB battery pack of this utility model eliminates the need for a traditional cell module frame by bonding and fixing the cell cluster 2 within the cell receiving slot. Furthermore, the high-voltage connection part 4 is integrated from the traditional "top cover" position to one side of the insulating separator 3, eliminating redundant space between the "top cover" and the cell cluster 2. This allows the entire battery pack to be made thinner in the Z-direction, i.e., occupying less space in the Z-direction. In addition, the insulating separator 3 physically isolates the high-voltage connection part 4 from the cell, effectively reducing or avoiding the risk of heat propagation to the cell caused by faults in the high-voltage connection part 4 (such as short circuits or arcing). It also eliminates the need to cover the high-voltage connection part 4 with heat-insulating material, reducing the Z-direction height and avoiding the defect of the heat-insulating material detaching from the high-voltage connection part 4. Moreover, the insulating separator 3 is directly bonded to the cell module 21, further reducing the space occupied in the Z-direction.

[0042] In the above embodiment, the cell cluster 2 includes a plurality of cell modules 21 arranged side by side along the first direction (X direction in the figure) of the insulating lower housing 1; the insulating partition 3 includes a plurality of insulating partitions, which are arranged corresponding to the plurality of cell clusters 2; the CTB battery pack also includes a pull strip 5, which extends along the first direction and is disposed above the plurality of insulating partitions 3, and the pull strip 5 is snapped and fixed to the plurality of insulating partitions 3.

[0043] In the above manner, the pull strip 5 is arranged across multiple insulating partitions 3 along the first direction (X direction) and is snapped and fixed thereto, effectively connecting multiple independent insulating partitions 3 and their corresponding cell clusters 2 into a unified whole. This significantly improves the structural rigidity and overall stability of the battery pack in the X direction, and enhances the battery pack's ability to resist external vibration, impact, and deformation. In this embodiment, the cell module 21 includes four rows arranged side by side. The four rows of cell modules 21 are connected by one pull strip 5 in the X direction and by two pull strips 5 in the Y direction. In some embodiments, a pull strip 5 can also be used to connect two adjacent rows of cell modules 21, thereby improving the structural rigidity of the four adjacent rows of cell modules 21 in the X direction. In some embodiments, technicians can choose to arrange more pull strips 5 according to the length of the cell module 21 in the Y direction, and this embodiment does not limit this.

[0044] In some embodiments, the pull strip 5 can also be connected and fixed to the multiple insulating partitions 3 in other ways, not limited to the snap-fit ​​method.

[0045] Furthermore, such as Figure 3 , Figure 4 and Figure 5 As shown, the insulating partition 3 has a slot 30, which is combined with Figure 6 , Figure 7As shown, the two ends of the pull bar 5 each have claws 51 extending downwards towards the insulating separator 3. These claws 51 engage with the slots 30 of the multiple insulating separators 3, connecting them into a single unit. This engagement of the claws 51 with the slots 30 creates a highly efficient mechanical interlocking structure. This connection method simultaneously constrains multiple independent insulating separators 3 in both the X and Y directions, firmly connecting them into a unified frame, greatly enhancing the structural integrity and torsional and shear resistance of the battery pack. Furthermore, the ingenious snap-fit ​​design eliminates the need for additional screws, bolts, or welding, enabling rapid "plug-and-play" assembly. This significantly simplifies the installation process, reduces the requirements for production equipment and operational skills, greatly improves production efficiency and assembly consistency, and facilitates large-scale mass production. Furthermore, the claw 51 extends downwards towards the insulating separator 3 and embeds into the slot 30, resulting in a highly integrated connection between the pull bar 5 and the insulating separator 3. This minimizes the additional space occupied by the battery pack in the Z direction, maintaining a compact structural design and contributing to improved volume utilization and energy density. The slot 30 provides precise positioning and guidance for the insertion of the claw 51, ensuring that multiple insulating separators 3 can be quickly and accurately aligned and fixed on the same baseline in the X direction. This effectively avoids structural misalignment or stress concentration caused by accumulated installation errors, improving product quality reliability and long-term stability. In the presence of vibration or impact, the cooperation between the claw 51 and the slot 30 effectively absorbs and dissipates some energy through its deformation or friction, suppressing relative displacement and loosening between components. This improves the battery pack's shock resistance under harsh conditions and the reliability of long-term connections.

[0046] In this embodiment, the slot 30 can be opened only on the insulating partition 3 that is engaged with the two ends of the pull strip 5, so as to reduce unavoidable openings and improve the structural strength and sealing performance of the insulating partition 3.

[0047] Furthermore, such as Figure 8As shown, the slot 30 is filled with colloid A, which adheres the claw 51 to the slot wall. By filling the slot 30 with colloid A, the pull rod 5 can be prevented from shifting, improving the positional stability of the pull rod 5 in the X and Y directions, and thus improving the positional stability of the insulating separator 3. Specifically, the colloid fills the assembly gap between the claw and the slot wall, forming an elastic adhesive layer. This adhesive layer can more efficiently absorb and dissipate vibration and impact energy, effectively suppressing or even completely eliminating wear, loosening, and abnormal noise problems caused by long-term micro-vibration (micro-motion) between components, and limiting the X and Y direction movement of the pull rod 5. This composite structure of "rigid interlocking + flexible bonding" raises the connection reliability to a new level, and is especially suitable for the vibration-sensitive environment of vehicle power battery packs. After curing, colloid A transforms the contact between the claw 51 and the slot 30 from "point contact" or "line contact" to "surface contact," maximizing the force-bearing area. This allows loads in multiple directions (especially pull-out force in the Z direction and shear force in the X direction) to be evenly transmitted and dispersed across the entire bonding surface, preventing stress concentration and significantly enhancing the rigidity and stability of the overall structure. This effectively prevents connection failure under extreme conditions. The filled colloid A forms a reliable sealing structure at the locking points, effectively preventing moisture, dust, corrosive gases, or electrolyte leaks from entering the mechanical connection interface. This avoids the risks of electro-corrosion, decreased insulation performance, or short circuits, thus significantly improving the battery pack's environmental tolerance, long-term safety, and lifespan. The material of colloid A typically possesses good internal friction characteristics, and its viscoelastic behavior provides a significant damping effect for the system, better suppressing structural resonance, reducing noise, vibration, and acoustic harshness (NVH), and improving the operating quality of the battery pack and even the entire vehicle.

[0048] In the above embodiments, such as Figure 9 As shown, a portion of the pull strip 5 is recessed away from the insulating partition 3 to form a groove 52. The groove 52 is used to fill the adhesive used to bond the pull strip 5 to the insulating partition 3. By forming a groove 52 between the pull strip 5 and the insulating partition 3 and bonding the pull strip 5 to the insulating partition 3 with adhesive, the structural stability below the pull strip 5 is improved. Furthermore, combined with... Figure 1 As shown, the pull strip 5 has an adhesive injection groove on the side facing the vehicle body. The adhesive injection groove is used to fill the adhesive B used to bond the pull strip 5 to the vehicle body. By filling the adhesive injection groove between the pull strip 5 and the vehicle body with the adhesive B used to bond the pull strip 5 to the vehicle body, the structural stability above the pull strip 5 is improved. In this embodiment, the pull strip 5 is bonded to the vehicle body through the adhesive B in the adhesive injection groove, and to the insulating partition 3 through the adhesive in the groove 52, which restricts the displacement of the pull strip 5 in the Z direction (and is perpendicular to the X and Y directions at the same time), thereby improving the positional stability of the pull strip 5.

[0049] In the above embodiments, such as Figure 1 , Figure 5 As shown, the insulating partition 3 is provided with first limiting plates 31 on both sides of the extension direction of the corresponding pull strip 5, and the pull strip 5 is located in the limiting space between the two first limiting plates 31.

[0050] In this manner, the two first limiting plates 31 precisely position the pull strip 5 on the insulating partition 3, providing a guide groove for the assembly of the pull strip 5. The first limiting plates 31 constrain the pull strip 5 from both sides, forming an effective limiting space. Especially under road conditions with vibration or bumps, this effectively suppresses the lateral (including X and Y directions) movement or jumping tendency of the pull strip 5 caused by vibration, ensuring that the connection between the claw and the slot remains stable, thereby improving the connection reliability and durability of the entire battery pack under long-term dynamic loads. The first limiting space also allows the pull strip 5 to be placed quickly and accurately in the preset installation position, ensuring the installation consistency of multiple pull strips 5 in the battery pack, effectively avoiding misalignment caused by human operation errors, and improving assembly accuracy and efficiency.

[0051] In the above embodiments, such as Figure 10 , Figure 11 As shown, the insulating partition 3 is provided with second limiting plates 32 on both sides of the extension direction of the high voltage connection part 4, and the high voltage connection part 4 is located in the limiting space between the two second limiting plates 32.

[0052] Through the above method, the two second limiting plates 32 precisely position the high-voltage connection part 4 on the insulating partition 3, providing a guide groove for the assembly of the high-voltage connection part 4. The second limiting plates 32 constrain the high-voltage connection part 4 from both sides, forming an effective limiting space. Especially under road conditions with vibration or bumps, it can effectively suppress the lateral movement or jumping tendency of the high-voltage connection part 4 caused by vibration, ensuring that the connection of the high-voltage connection part 4 remains stable at all times, thereby improving the connection reliability and durability of the entire battery pack under long-term dynamic load. The second limiting space also allows the high-voltage connection part 4 to be quickly and accurately placed in the preset installation position, ensuring the installation consistency of multiple high-voltage connection parts 4 in the battery pack, effectively avoiding misalignment caused by human operation errors, and improving assembly accuracy and efficiency.

[0053] In this embodiment, the high-voltage connection part 4 specifically refers to a copper busbar. The copper busbar is arranged above multiple insulating partitions 3. The end of the copper busbar that connects to the battery module 21 has a first connection part. The structure of the first connection part can refer to the prior art, and this embodiment does not limit it. The copper busbar is provided with a second connection part 41 to connect with the high-voltage electrical components in the vehicle body. The second connection part 41 may include a nested nut 411, which is fixed in the nut mounting hole of the copper busbar.

[0054] In the above embodiments, such as Figure 2 , Figure 12 As shown, the insulating partition 3 has a high-voltage connection post fixing groove on the side opposite to the cell cluster 2 for fixing the high-voltage connection post 6. The insulating partition 3 also has a potting groove 7 surrounding the high-voltage connection post fixing groove. The potting groove 7 is used to fill and bond the high-voltage connection post 6 to the groove wall. By filling the potting groove 7 with adhesive to bond the high-voltage connection post 6 to the groove wall, the structural stability of the high-voltage connection post 6 is improved, enhancing the connection reliability and durability of the entire battery pack under long-term dynamic load. The potting groove 7 is located at the end of the high-voltage connection part 4 in the extension direction (X direction) to limit the movement of the high-voltage connection part 4 in the X direction.

[0055] In the above embodiments, such as Figure 13 As shown, the CTB battery pack also includes a flexible circuit board 8, which is disposed between the cell cluster 2 and the insulating separator 3. The insulating separator 3 is bent in the direction away from the flexible circuit board 8 at the position corresponding to the flexible circuit board 8 and covers the flexible circuit board 8.

[0056] Secondly, an embodiment of this utility model discloses a vehicle including the aforementioned CTB battery pack structure.

[0057] This utility model's CTB battery pack eliminates the need for a traditional cell module frame by bonding and fixing the cell cluster 2 within the cell receiving slot. Furthermore, the high-voltage connection part 4 is integrated from the traditional "top cover" position to one side of the insulating separator 3, eliminating redundant space between the "top cover" and the cell cluster. This allows the entire battery pack to be made thinner in the vertical direction (thickness), i.e., occupying less space in the Z-direction. In addition, the insulating separator 3 physically isolates the high-voltage connection part 4 from the cells, effectively reducing or avoiding the risk of heat propagation to the cells caused by faults in the high-voltage connection part 4 (such as short circuits or arcing).

[0058] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A CTB battery pack, characterized in that, include: The insulating lower housing has a cell receiving slot for accommodating the cell cluster; The battery cell cluster is bonded and fixed inside the battery cell receiving slot; An insulating partition is bonded and fixed to the side of the battery cell cluster facing away from the lower insulating housing; A high-voltage connection portion is provided on the side of the insulating partition away from the battery cell cluster. The high-voltage connection portion has a first connection portion that connects to high-voltage electrical components in the vehicle body and a second connection portion that connects to the battery cell cluster.

2. The CTB battery pack according to claim 1, characterized in that, The cell cluster includes multiple cell modules arranged side by side along a first direction of the insulating lower housing; the insulating partition includes multiple insulating partitions, and the multiple insulating partitions are arranged corresponding to the multiple sets of cell modules. The CTB battery pack also includes: A pull strip is provided above the plurality of insulating partitions, extending along the first direction, and the pull strip is snapped and fixed to the plurality of insulating partitions.

3. The CTB battery pack according to claim 2, characterized in that, Also includes: A slot is formed in the insulating partition. Both ends of the pull bar are respectively formed with claws extending downward toward the insulating partition. The claws at both ends of the pull bar are respectively engaged in the slots of the multiple insulating partitions. The slots are filled with an adhesive that bonds the claws to the groove wall.

4. The CTB battery pack according to claim 2, characterized in that, A portion of the pull strip is recessed away from the insulating partition to form a groove, the groove being filled with an adhesive that bonds the pull strip to the insulating partition.

5. The CTB battery pack according to claim 2, characterized in that, The pull strip has an adhesive injection groove on the side facing the vehicle body, and the adhesive injection groove is used to fill the adhesive that bonds the pull strip to the vehicle body.

6. The CTB battery pack according to any one of claims 2 to 5, characterized in that, The insulating partition is provided with a first limiting plate at a position on both sides corresponding to the extension direction of the pull bar, and the pull bar is located in the limiting space between the two first limiting plates.

7. The CTB battery pack according to claim 1, characterized in that, The insulating partition is provided with second limiting plates on both sides corresponding to the extension direction of the high-voltage connection part, and the high-voltage connection part is located in the limiting space between the two second limiting plates.

8. The CTB battery pack according to claim 1, characterized in that, Also includes: A high-voltage connection post fixing groove is used to fix the high-voltage connection post, and the high-voltage connection post fixing groove is located on the side of the insulating partition away from the battery cell cluster. A glue-filling groove is provided around the periphery of the high-voltage connecting column fixing groove. The glue-filling groove is used to fill the glue that bonds the high-voltage connecting column to the groove wall. The glue-filling groove is located at the end side of the high-voltage connecting part in the extension direction to limit the high-voltage connecting part.

9. The CTB battery pack according to any one of claims 1-5, 7, and 8, characterized in that, Also includes: A flexible circuit board is disposed between the battery cell cluster and the insulating partition. The insulating partition is bent away from the flexible circuit board at a position corresponding to the flexible circuit board and covers the flexible circuit board.

10. A vehicle, characterized in that, The CTB battery pack includes any one of claims 1 to 9.

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