Battery pack and vehicle

Abstract

The application provides a battery pack and a vehicle, and relates to the technical field of battery packs. The battery pack comprises a shell, a support plate and battery cells. The shell comprises an upper cover and a bottom plate, and the upper cover and the bottom plate jointly define a containing cavity. The support plate is fixedly arranged in the containing cavity and abuts against the bottom plate. The battery cells are arranged in the containing cavity in a plurality of forms, and the battery cells are respectively bonded to the support plate and the upper cover through structural glue. The battery pack provided by the application only needs to be provided with structural glue at both ends of the battery cells when fixing the battery cells, which is beneficial to reducing the consumption of structural glue and saving the production cost of the battery pack.

Description

Technical Field

[0001] This application relates to the field of battery pack technology, and more particularly to a battery pack and a vehicle. Background Technology

[0002] A battery pack is an integral unit assembled from multiple battery cells, used to store and provide electrical energy. In the prior art, each battery cell is fixed inside the battery pack by a potting process, that is, the cavity of the battery pack is filled with structural adhesive to fix the battery cells.

[0003] However, fixing the battery cells in the above way requires a large amount of structural adhesive, resulting in a high cost for the battery pack. Utility Model Content

[0004] This application provides a battery pack and vehicle that helps to reduce the amount of structural adhesive used when fixing battery cells, thereby saving on the production cost of the battery pack.

[0005] On one hand, this application provides a battery pack, including: a housing, the housing including a top cover and a bottom plate, the top cover and the bottom plate together defining a receiving cavity; a support plate, the support plate being fixedly disposed in the receiving cavity, the support plate abutting against the bottom plate; and multiple battery cells, the battery cells being disposed in the receiving cavity, the battery cells being respectively bonded to the support plate and the top cover by structural adhesive.

[0006] In one possible implementation, it further includes: an insulating sheet disposed between the battery cell and the support plate, the insulating sheet having adhesive holes corresponding to the battery cell; the adhesive holes containing structural adhesive, the battery cell and the support plate being connected by the structural adhesive.

[0007] In one possible implementation, a pressure relief valve is provided at the end of the battery cell facing the base plate, and the adhesive hole is offset from the pressure relief valve.

[0008] In one possible implementation, the support plate includes: a substrate, the substrate including a first surface facing the battery cell and a second surface facing the base plate, the insulating sheet being disposed on the first surface; a first reinforcing rib, the first reinforcing rib being disposed on the second surface, the first reinforcing rib being a plurality of ribs spaced apart along a first direction, the first reinforcing rib abutting against the base plate; two adjacent first reinforcing ribs and the base plate jointly defining a smoke exhaust channel, the smoke exhaust channel corresponding to the pressure relief valve, the smoke exhaust channel being open at least one end along a second direction; the first direction being perpendicular to the second direction.

[0009] In one possible implementation, it further includes a buffer element disposed between the first reinforcing rib and the base plate.

[0010] In one possible implementation, the support plate further includes a second reinforcing rib disposed on the second surface and located between two adjacent first reinforcing ribs, and the second reinforcing rib has a gap with the base plate.

[0011] In one possible implementation, a support beam is provided inside the receiving cavity, and multiple mounting parts are provided at intervals on the side of the support plate, the mounting parts being connected to the support beam.

[0012] In one possible implementation, the support beam is provided with a heightening block corresponding to the mounting part, and the mounting part is fixedly connected to the heightening block.

[0013] In one possible implementation, the battery cell is cylindrical, and the adhesive holes are located on opposite sides of the central axis of the battery cell in a radial direction.

[0014] On the other hand, this application also provides a vehicle including any of the aforementioned battery packs.

[0015] The battery pack provided in this application includes a casing, a support plate, and battery cells. The casing includes a top cover and a bottom plate, which together form a receiving cavity. The support plate is fixed within the receiving cavity, and the battery cells are fixed between the support plate and the top cover. The battery cells are bonded to the support plate and the top cover using structural adhesive. The support plate abuts against the bottom plate to improve the stability of the battery cell fixation. Therefore, when fixing the battery cells within the battery pack, only the two ends of the battery cells need to be fixed to the top cover and the support plate using structural adhesive, without needing to fill the receiving cavity with structural adhesive. This reduces the amount of structural adhesive used and saves on the production cost of the battery pack. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] Figure 1 This is an exploded view of the battery pack provided in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the internal structure of the battery pack provided in an embodiment of this application;

[0019] Figure 3 A schematic diagram of the connection between the support plate and the support beam of the battery pack provided in an embodiment of this application;

[0020] Figure 4 A schematic diagram of the structure of the support plate for the battery pack provided in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram showing the positional relationship between the battery cells and adhesive holes in a battery pack provided in an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100-battery pack;

[0024] 110 - Shell; 111 - Top cover; 112 - Base plate; 113 - Support beam; 1131 - Heightening block;

[0025] 120 - Support plate; 121 - Base plate; 1211 - First surface; 1212 - Second surface; 122 - First reinforcing rib; 1221 - Smoke exhaust channel; 123 - Second reinforcing rib; 124 - Mounting part;

[0026] 130 - Battery cell; 131 - Pressure relief valve;

[0027] 140 - Structural adhesive;

[0028] 150 - Insulating sheet; 151 - Adhesive hole;

[0029] 160-Buffer.

[0030] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0032] As the background section illustrates, in the prior art, a battery pack is an integral unit assembled from multiple battery cells, used to store and provide electrical energy. In the prior art, each battery cell is fixed within the battery pack using a potting process, meaning the pack's cavity is filled with structural adhesive to secure the cells. However, this method of fixing the cells consumes a large amount of structural adhesive, resulting in a high cost for the battery pack.

[0033] To address the aforementioned technical problems, this application provides a battery pack comprising a housing, a support plate, and battery cells. The housing includes a top cover and a bottom plate, which form a receiving cavity. The support plate is fixed within the receiving cavity, and the battery cells are fixed between the support plate and the top cover. The battery cells are bonded to the support plate and the top cover using structural adhesive. The support plate abuts against the bottom plate to improve the stability of the battery cell fixation. Therefore, when fixing the battery cells within the battery pack, only the two ends of the battery cells need to be fixed to the top cover and the support plate using structural adhesive, eliminating the need to fill the receiving cavity with structural adhesive. This reduces the amount of structural adhesive used and saves on the production cost of the battery pack.

[0034] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings:

[0035] It should be noted that the battery pack provided in this application embodiment can be applied to various different vehicles.

[0036] See Figure 1 and Figure 2 As shown, the battery pack 100 of this embodiment includes: a housing 110, a support plate 120, and battery cells 130. The housing 110 includes an upper cover 111 and a bottom plate 112, which together define a receiving cavity. The support plate 120 is fixedly disposed within the receiving cavity, and abuts against the bottom plate 112. Multiple battery cells 130 are disposed within the receiving cavity, and each battery cell 130 is bonded to the support plate 120 and the upper cover 111 using structural adhesive 140. Figure 1 The X direction is the first direction, the Y direction is the second direction, and the Z direction is the third direction. The first, second, and third directions are perpendicular to each other.

[0037] In this embodiment, the top cover 111 and the bottom plate 112 together define the receiving cavity, in which the battery cells 130 are arranged in an array. In order to ensure that the battery cells 130 will not be displaced due to the overall vibration of the battery pack 100 or impact, and to ensure the safety of the battery pack 100, the battery cells 130 need to be stably fixed in the receiving cavity to prevent collisions between the battery cells 130 that could cause safety hazards. Since the height of the receiving cavity along the third direction is greater than the height of the battery cell 130 along the third direction, if the end of the battery cell 130 facing the base plate 112 is directly connected to the base plate 112 with structural adhesive 140, a thicker layer of structural adhesive 140 will still be needed, consuming a lot of structural adhesive 140. Therefore, in this embodiment, a support plate 120 is provided between the battery cell 130 and the base plate 112. The support plate 120 can be adjusted to a suitable position according to the height of the battery cell 130 along the third direction, so that both ends of the battery cell 130 are respectively bonded to the top cover 111 and the support plate 120 with structural adhesive 140, and the support plate 120 abuts against the base plate 112. In this way, only the upper and lower ends of the battery cell 130 need to be provided with structural adhesive 140 to stably fix the battery cell 130 in the receiving cavity, which helps to reduce the consumption of structural adhesive 140 and save the production cost of the battery pack 100.

[0038] In addition, since the structural strength of the base plate 112 of the battery pack 100 is relatively low, after the support plate 120 is installed, the support plate 120 abuts against the base plate 112. When the base plate 112 is impacted, the support plate 120 can absorb some energy, reduce the impact force transmitted to the cell 130, which helps to protect the cell 130 from damage, improve the structural strength of the battery pack 100, and thus improve the collision resistance of the battery pack 100.

[0039] Furthermore, the support plate 120 can be connected to the upper cover 111, the bottom plate 112, or the support beam 113 in the cavity, etc., to enhance the stability and structural strength of the support plate 120, which is conducive to further improving the safety of the battery pack 100. Of course, the specific fixing method of the support plate 120 is not limited in this embodiment of the application, and can be reasonably selected according to the required position, size and other factors of the support plate 120.

[0040] In a specific implementation, the battery cell 130 can be either a cylindrical battery cell 130 or a square battery cell 130. The shape of the battery cell 130 is not limited in this embodiment of the application, as long as it has a mounting surface between the top cover 111 and the support plate 120.

[0041] See also some of the possible implementation methods. Figure 1 , Figure 2 and Figure 5As shown, the embodiment of this application also includes: an insulating sheet 150, which is disposed between the battery cell 130 and the support plate 120. The insulating sheet 150 has an adhesive hole 151 corresponding to the battery cell 130. The adhesive hole 151 contains structural adhesive 140, and the battery cell 130 and the support plate 120 are connected by the structural adhesive 140.

[0042] Understandably, to improve the structural strength of the support plate 120, it can be made of metal. Metal typically has good electrical conductivity. If the battery cell 130 is in direct contact with the support plate 120, a short circuit may occur between the two cells 130, leading to battery overheating or even an explosion. Therefore, to ensure the safe operation of the battery pack 100, on the one hand, a certain insulating distance needs to be maintained between each cell 130 to prevent physical contact; on the other hand, an insulating sheet 150 can be installed between the cell 130 and the support plate 120. The insulating sheet 150 also prevents the influence of static electricity and electromagnetic interference on the cell 130, which helps improve the performance and stability of the cell 130 and ensures the safe and stable operation of the battery pack 100.

[0043] Furthermore, multiple adhesive holes can be made on the insulating sheet 150. The number and position of the adhesive holes 151 correspond to the battery cell 130. At least two adhesive holes 151 are provided below each battery cell 130. When assembling the battery pack 100, structural adhesive 140 is first applied to one of the battery cell 130 and the support plate 120. Then, the insulating sheet 150 is placed on the structural adhesive 140. Finally, the other is placed on the insulating sheet 150 and pressed. In this way, the structural adhesive 140 can bond the battery cell 130 and the support plate 120 together through the adhesive holes 151. This ensures the stability of the battery cell 130 in the cavity and prevents electrostatic interference or short circuit, which is beneficial to improving the safety of the battery pack 100.

[0044] See also some of the possible implementation methods. Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment of the application, the end of the battery cell 130 facing the base plate 112 is provided with a pressure relief valve 131, and the adhesive hole 151 is staggered from the pressure relief valve 131.

[0045] In practical implementation, when a fault such as thermal runaway occurs inside the battery pack 100, the pressure inside the cell 130 increases abnormally, which may cause the battery pack 100 to explode or be damaged, creating a safety hazard. Therefore, a pressure relief valve 131 needs to be installed on the cell 130. When the gas pressure inside the cell 130 exceeds a preset value, the gas inside the cell 130 will break through the pressure relief valve 131 to release the pressure, thereby preventing the battery pack 100 from exploding due to excessive pressure. This helps maintain the internal stability of the cell 130, extends the service life of the cell 130, and improves the reliability of the battery pack 100.

[0046] Therefore, when setting the adhesive hole 151, care should be taken to stagger the adhesive hole 151 and the pressure relief valve 131 to avoid the structural adhesive 140 at the pressure relief valve 131 affecting the gas leakage, ensuring the smooth flow of the pressure relief channel, and helping to ensure the safe operation of the battery pack 100.

[0047] See also some of the possible implementation methods. Figure 1 , Figure 2 and Figure 4 As shown, the support plate 120 of this embodiment includes: a base plate 121 and a first reinforcing rib 122. The base plate 121 includes a first surface 1211 facing the battery cell 130 and a second surface 1212 facing the base plate 112. An insulating sheet 150 is disposed on the first surface 1211. The first reinforcing rib 122 is disposed on the second surface 1212. A plurality of first reinforcing ribs 122 are spaced apart along a first direction. The first reinforcing ribs 122 abut against the base plate 112. Two adjacent first reinforcing ribs 122 and the base plate 112 together define a smoke exhaust channel 1221. The smoke exhaust channel 1221 corresponds to the pressure relief valve 131. At least one end of the smoke exhaust channel 1221 is open along a second direction. The first direction is perpendicular to the second direction.

[0048] It should be noted that the first reinforcing rib 122 extends along the second direction, so the smoke exhaust channel 1221 formed between the two first reinforcing ribs 122 also extends along the second direction. Each smoke exhaust channel 1221 can cover the pressure relief valve 131 of one or more battery cells 130 along the first direction. Therefore, the width of the smoke exhaust channel 1221 along the first direction is not limited in this embodiment of the application, and can be reasonably selected according to the structural strength requirements of the support plate 120, as long as it is ensured that there is a corresponding smoke exhaust channel 1221 below each pressure relief valve 131.

[0049] In addition, the support plate 120 improves the structural strength through the first reinforcing rib 122, and the substrate 121 itself can be set to a relatively thin structure. In this way, when the gas pressure in the cell 130 is abnormal, the gas in the cell 130 can be discharged through the pressure relief valve 131 and break through the insulating sheet 150 and the substrate 121 to enter the smoke exhaust channel 1221 and be discharged through the opening of the smoke exhaust channel 1221, thereby avoiding excessive gas pressure in the containment cavity that could lead to an explosion. This is beneficial to further improve the safety and reliability of the battery pack 100.

[0050] See also some of the possible implementation methods. Figure 1 , Figure 2 and Figure 4 As shown, the embodiment of this application also includes: a buffer 160, which is disposed between the first reinforcing rib 122 and the base plate 112.

[0051] The buffer 160 can be made of plastic, rubber, silicone, etc., and this application embodiment does not limit this. The buffer 160 is provided between the first reinforcing rib 122 and the base plate 112. When the base plate 112 is impacted, both the exhaust channel 1221 and the buffer 160 can absorb some of the energy, thereby reducing the impact force on the support plate 120 and thus reducing the impact force transmitted to the battery cell 130. This is beneficial to improving the collision resistance of the battery pack 100 and improving the safety of the battery pack 100.

[0052] See also some of the possible implementation methods. Figure 1 and Figure 2 As shown, the support plate 120 in this embodiment of the application further includes a second reinforcing rib 123. The second reinforcing rib 123 is disposed on the second surface 1212 and located between two adjacent first reinforcing ribs 122, and there is a gap between the second reinforcing rib 123 and the bottom plate 112.

[0053] It is understandable that when the width of the smoke exhaust channel 1221 along the first direction is relatively wide and the distance between two adjacent first reinforcing ribs 122 is relatively large, the structural strength of the support plate 120 may be difficult to meet the support requirements. Therefore, at least one second reinforcing rib 123 can be provided between two adjacent first reinforcing ribs 122. The specific number of second reinforcing ribs 123 can be reasonably selected according to the distance between the first reinforcing ribs 122. This application embodiment does not limit this.

[0054] In addition, a gap needs to be left between the second reinforcing rib 123 and the base plate 112 to ensure the connection of the smoke exhaust channel 1221, while also helping to reduce the overall weight and production cost of the support plate 120.

[0055] See also some of the possible implementation methods. Figure 1 , Figure 2 and Figure 3 As shown, the cavity of this application embodiment is provided with a support beam 113, and a plurality of mounting parts 124 are provided at intervals on the side of the support plate 120, and the mounting parts 124 are connected to the support beam 113.

[0056] It should be noted that the support beam 113 in this embodiment can be a side beam fixed to the top cover 111 of the battery pack 100, or it can be a horizontal beam, longitudinal beam, etc., inside the cavity to enhance the structural strength of the housing 110. This embodiment does not limit this and can be reasonably selected according to the required position of the support plate 120. Multiple mounting parts 124 are provided on the side of the support plate 120. The mounting parts 124 are fixed to the support beam 113 by welding, bolt connection or other means. Thus, the side of the support plate 120 is fixed to the support beam 113, and the bottom abuts against the bottom plate 112, which helps to improve the stability of the support plate 120, thereby improving the overall structural strength and stability of the battery pack 100 and ensuring the safe and stable operation of the battery pack 100.

[0057] See also some of the possible implementation methods. Figure 1 , Figure 2 and Figure 3 As shown, the support beam 113 of this application embodiment is provided with a heightening block 1131 corresponding to the mounting part 124, and the mounting part 124 is fixedly connected to the heightening block 1131.

[0058] In some embodiments, there is a height difference between the height of the support beam 113 along a third direction and the height at which the support plate 120 needs to be fixed. Therefore, a height-increasing block 1131 can be provided on the support beam 113, and the mounting portion 124 of the support plate 120 is fixedly connected to the height-increasing block 1131 to ensure that the support plate 120 can be fixed at a suitable height. The height-increasing block 1131 can be fixed to the support beam 113 by welding or integrally formed with the support beam 113. This embodiment does not limit this, as long as the stability of the connection between the support plate 120 and the support beam 113 can be ensured.

[0059] See also some of the possible implementation methods. Figure 1 , Figure 2 and Figure 5 As shown, the battery cell 130 in this embodiment is cylindrical, and the adhesive holes 151 are located on opposite sides of the central axis of the battery cell 130 along the radial direction.

[0060] In practical implementation, the cylindrical cell 130 has less space constraints, lower internal resistance, and less self-discharge, which helps extend the overall driving range of the battery pack 100. Simultaneously, the cylindrical cell 130 has a larger heat dissipation area, which helps the battery pack 100 maintain performance stability under high load conditions. By placing adhesive holes 151 on opposite sides of the central axis of the cell 130 in the radial direction, and fixing the cell 130 from both sides, the stability of the connection between the cell 130 and the support plate 120 can be effectively ensured, preventing the cell 130 from shifting or colliding with adjacent cells, thus improving the safety and reliability of the battery pack 100.

[0061] See Figure 1 As shown in the embodiments of this application, a vehicle is also provided, including any of the above-described battery packs 100.

[0062] The structure and working principle of the battery pack 100 have been described in detail in the above embodiments, and will not be repeated here.

[0063] In summary, the battery pack 100 provided in this application embodiment includes a housing 110, a support plate 120, and a plurality of battery cells 130. The housing 110 has an upper cover 111 and a bottom plate 112, which together form a receiving cavity. The support plate 120 is disposed in the receiving cavity and abuts against the bottom plate 112. The side of the support plate 120 has a mounting portion 124, which is connected to a support beam 113 in the receiving cavity. The two ends of the battery cells 130 are connected to the upper cover 111 and the support plate 112 by structural adhesive 140. The 20 bonding allows the support plate 120 to improve the structural strength of the battery pack 100, while reducing the impact of vibration or impact on the base plate 112 on the battery cell 130 and improving the stability of the battery cell 130. Therefore, structural adhesive 140 is only needed at both ends of the battery cell 130 to stably fix the battery cell 130 in the receiving cavity. Compared with the prior art of filling the receiving cavity with structural adhesive 140, the battery pack 100 of this application embodiment can reduce the consumption of structural adhesive 140, which is beneficial to saving the production cost of the battery pack 100.

[0064] In the description of the embodiments of this application, it should be noted that, 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, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0065] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0066] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0067] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0068] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone.

[0069] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0070] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0071] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0072] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A battery pack (100), characterized in that, include: The housing (110) includes a top cover (111) and a bottom plate (112), the top cover (111) and the bottom plate (112) together defining a receiving cavity; A support plate (120) is fixedly disposed in the receiving cavity, and the support plate (120) abuts against the bottom plate (112); The battery cell (130) is a plurality of cells disposed in the cavity, and the battery cell (130) is bonded to the support plate (120) and the top cover (111) respectively by structural adhesive (140).

2. The battery pack (100) according to claim 1, characterized in that, Also includes: Insulating sheet (150). The insulating sheet (150) is disposed between the battery cell (130) and the support plate (120), and the insulating sheet (150) has adhesive holes (151) corresponding to the battery cell (130). The adhesive hole (151) contains structural adhesive (140), and the battery cell (130) is connected to the support plate (120) through the structural adhesive (140).

3. The battery pack (100) according to claim 2, characterized in that, The battery cell (130) is provided with a pressure relief valve (131) at one end facing the base plate (112), and the adhesive hole (151) is offset from the pressure relief valve (131).

4. The battery pack (100) according to claim 3, characterized in that, The support plate (120) includes: The substrate (121) includes a first surface (1211) facing the cell (130) and a second surface (1212) facing the base plate (112), and the insulating sheet (150) is disposed on the first surface (1211). The first reinforcing rib (122) is disposed on the second surface (1212). The first reinforcing rib (122) consists of a plurality of ribs spaced apart along the first direction. The first reinforcing rib (122) abuts against the bottom plate (112). The two adjacent first reinforcing ribs (122) together with the base plate (112) define a smoke exhaust channel (1221), which corresponds to the pressure relief valve (131), and the smoke exhaust channel (1221) is open at least one end along the second direction; The first direction is perpendicular to the second direction.

5. The battery pack (100) according to claim 4, characterized in that, Also includes: A buffer (160) is disposed between the first reinforcing rib (122) and the base plate (112).

6. The battery pack (100) according to claim 4, characterized in that, The support plate (120) further includes a second reinforcing rib (123), which is disposed on the second surface (1212) and located between two adjacent first reinforcing ribs (122), and there is a gap between the second reinforcing rib (123) and the bottom plate (112).

7. The battery pack (100) according to any one of claims 1-6, characterized in that, The cavity is provided with a support beam (113). The support plate (120) has multiple mounting parts (124) spaced apart on its side, and the mounting parts (124) are connected to the support beam (113).

8. The battery pack (100) according to claim 7, characterized in that, The support beam (113) is provided with a heightening block (1131) corresponding to the mounting part (124), and the mounting part (124) is fixedly connected to the heightening block (1131).

9. The battery pack (100) according to claim 2, characterized in that, The battery cell (130) is cylindrical, and the adhesive holes (151) are located on opposite sides of the central axis of the battery cell (130) in the radial direction.

10. A vehicle, characterized in that, Includes the battery pack (100) as described in any one of claims 1-9.

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