CTB battery pack and electric automobile

Abstract

The utility model provides a CTB battery pack and an electric vehicle. The CTB battery pack comprises a battery module, wherein the battery module comprises at least two battery cells; the composite supporting assembly is located on the battery module, the composite supporting assembly comprises a first supporting piece and a second supporting piece, the first supporting piece is arranged on the second supporting piece, the second supporting piece is provided with an isolation part, and the isolation part extends towards the direction of the battery module and is located between every two adjacent battery cells. The anti-treading device is good in anti-treading effect and high in integration.

Description

Technical Field

[0001] This application relates to a CTB battery pack and an electric vehicle, belonging to the field of new energy battery technology. Background Technology

[0002] As electric vehicles become increasingly integrated, and to increase the space and comfort of the passenger compartment, the CTB (Battery to Body) solution is being used more and more.

[0003] In the process of conceiving and implementing this application, the applicant discovered at least the following problems: At present, the research on the three key components of electric vehicles (motor, battery, and electronic control) is becoming increasingly mature and the degree of industrialization is increasing, while the existing CTB solution has a low degree of integration and weak protection capability.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] This application provides a CTB battery pack and an electric vehicle, which has good anti-pedaling effect and high integration.

[0006] This application provides a CTB battery pack, including:

[0007] A battery module, comprising at least two battery cells;

[0008] A composite support assembly is located on the battery module. The composite support assembly includes a first support member and a second support member. The first support member is disposed on the second support member. The second support member has an isolation portion that extends toward the battery module and is located between two adjacent battery cells.

[0009] The beneficial effects of this application are: by setting up the composite support components, the top of the CTB battery pack can withstand greater stress to protect the battery module, thereby improving the service life of the battery module and the CTB battery pack.

[0010] In some alternative implementations, the CTB battery pack also includes at least two adhesive layers;

[0011] The second support member also has at least two glue storage tanks. Along the arrangement direction of the battery module, the at least two glue storage tanks are located on opposite sides of the isolation part, and the glue layer is located in the glue storage tank so that the battery cell is attached to the second support member through the glue layer.

[0012] It should be noted that the adhesive layer is located within the adhesive reservoir, allowing the battery cell to be securely attached to the second support member. This design provides additional fixing force, preventing displacement of the battery cell during transportation or use and improving the overall stability of the battery pack.

[0013] In some alternative embodiments, the second support member also has a retaining edge, and the retaining edge, the isolation portion, and the bottom of the second support member form a glue storage tank.

[0014] It should be noted that the baffle effectively restricts the movement of the adhesive layer within the adhesive reservoir, ensuring that the adhesive layer remains stably in its predetermined position. This fixation improves the adhesion between the battery cell and the second support, further enhancing the structural stability of the battery pack.

[0015] In some alternative implementations, the isolation section is an isolation plate;

[0016] Along the thickness direction of the CTB battery pack, the length of the retaining edge is less than the length of the insulating part.

[0017] It should be noted that the separator provides sufficient physical isolation between the cells, preventing direct contact between adjacent cells. This design helps prevent the propagation of thermal runaway in the event of a cell failure, thus improving the safety of the battery pack.

[0018] In some alternative embodiments, the second support has a groove, and the first support has a protrusion that extends toward the second support and engages with the groove, so that the first support is disposed on the second support.

[0019] It should be noted that the design of the protrusion engaging with the groove provides a reliable mechanical connection, allowing the first support to be securely mounted on the second support. This connection method improves the stability between components and prevents loosening or displacement during use.

[0020] In some alternative embodiments, the first support member includes a first support plate and a second support plate connected together, with a protrusion disposed on the second support plate.

[0021] It should be noted that a modular design is achieved by dividing the first support component into two parts: a first support plate and a second support plate. The connection between the first and second support plates effectively disperses and withstands the mechanical stress from the battery pack, improving overall durability and reliability.

[0022] In some alternative embodiments, the second support plate is provided with a plurality of protruding ribs and a plurality of concave ribs;

[0023] Along the extension direction of the second support plate, multiple convex ribs and multiple concave ribs are arranged alternately;

[0024] The protruding rib abuts against the first support plate, and there is a gap between the concave rib and the first support plate.

[0025] It should be noted that the presence of the raised ribs increases the structural strength and rigidity of the second support plate. Through direct contact with the first support plate, the raised ribs provide additional support, helping to disperse and bear mechanical stress, thus improving overall durability and resistance to deformation. The concave ribs, without significantly affecting structural strength, create a buffer gap between themselves and the first support plate, expanding the range of buffer gap placement and resulting in a better buffering effect.

[0026] In some alternative implementations, the CTB battery pack further includes a first buffer and a second buffer;

[0027] The first buffer is located on the first support, and the second buffer is located between the second support and the battery cell.

[0028] It should be noted that the first and second buffer components provide additional shock absorption and cushioning layers, effectively absorbing and mitigating the impact of external shocks and vibrations on the battery pack. This helps protect the battery cells, extend their lifespan, and improve the overall reliability of the battery pack.

[0029] In some alternative implementations, the first support member is a sheet metal part; and / or,

[0030] The second support component is made of plastic.

[0031] It should be noted that sheet metal parts typically possess excellent mechanical strength and rigidity, providing a robust support structure for the battery pack. Sheet metal parts can be optimized for weight reduction while maintaining necessary strength and rigidity.

[0032] In addition, this application also provides an electric vehicle including the aforementioned CTB battery pack.

[0033] The CTB battery pack and electric vehicle provided in this application include the aforementioned CTB battery pack; the CTB battery pack includes a battery module including at least two cells; a composite support assembly located on the battery module, the composite support assembly including a first support member and a second support member, the first support member being disposed on the second support member, the second support member having an isolation portion extending toward the battery module and located between two adjacent cells.

[0034] By using composite support components, the top of the CTB battery pack can withstand greater stress, thus protecting the battery modules and improving the lifespan of both the battery modules and the CTB battery pack. Attached Figure Description

[0035] The above and other objects, features, and advantages of embodiments of this application will become more readily understood through the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application will be described by way of example and non-limitation, wherein:

[0036] Figure 1 This is a partial structural diagram of the CTB battery pack according to an embodiment of this application;

[0037] Figure 2 This is an exploded view of the composite support assembly in the CTB battery pack according to an embodiment of this application;

[0038] Figure 3 This is an exploded view of the first support member in the CTB battery pack according to an embodiment of this application;

[0039] Figure 4 This is a schematic diagram of the structure of the second support member in the CTB battery pack according to an embodiment of this application.

[0040] Figure label:

[0041] 100-CTB battery pack;

[0042] 110 - Battery Module;

[0043] 111-cell;

[0044] 120-Composite support assembly;

[0045] 121 - First support component;

[0046] 1211 - First support plate;

[0047] 1212 - Second support plate;

[0048] 12121 - Bump;

[0049] 12122-convex rib;

[0050] 12123-Concave rib;

[0051] 122 - Second support component;

[0052] 1221 - Isolation Department;

[0053] 1222 - Glue Storage Tank;

[0054] 1223 - Edge guard;

[0055] 1224 - Groove;

[0056] 1225 - Flip-edge;

[0057] 130 - First buffer;

[0058] 140 - Second buffer. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. All other obtained embodiments are within the scope of protection of this application. In the absence of conflict, the following embodiments and features can be combined with each other.

[0060] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0061] In this application, unless otherwise expressly 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] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] In the process of conceiving and implementing this application, the applicant discovered at least the following problems: At present, the research on the three key components of electric vehicles (motor, battery, and electronic control) is becoming increasingly mature and the degree of industrialization is increasing, while the existing CTB solution has a low degree of integration and weak protection capability.

[0064] The CTB battery pack proposed in this application, through the arrangement of composite support components, enables the top of the CTB battery pack to withstand greater stress, thereby protecting the battery module and improving the service life of the battery module and the CTB battery pack.

[0065] The CTB battery pack provided in this application will be described in detail below with reference to specific embodiments.

[0066] Figure 1 This is a partial structural diagram of the CTB battery pack according to an embodiment of this application. Figure 2 This is an exploded view of the composite support assembly in the CTB battery pack according to an embodiment of this application. Figure 3 This is an exploded view of the first support member in the CTB battery pack according to an embodiment of this application. Figure 4 This is a schematic diagram of the structure of the second support member in the CTB battery pack according to an embodiment of this application.

[0067] like Figures 1 to 4 As shown in the figure, this application embodiment proposes a CTB battery pack 100, including:

[0068] Battery module 110 includes at least two battery cells 111;

[0069] The composite support assembly 120 is located on the battery module 110. The composite support assembly 120 includes a first support member 121 and a second support member 122. The first support member 121 is disposed on the second support member 122. The second support member 122 has an isolation portion 1221, which extends toward the battery module 110 and is located between two adjacent battery cells 111.

[0070] It should be noted that the isolation portion 1221 in the composite support assembly 120 is located between adjacent cells 111, effectively isolating the mutual influence between the cells 111. The design of the isolation portion 1221 not only provides physical isolation between the cells 111, but also optimizes thermal management. Through reasonable material selection and structural design, the composite support assembly 120 can effectively dissipate the heat generated by the cells 111, reduce the operating temperature of the battery pack, and improve the battery's lifespan and performance.

[0071] It should be noted that the combination of the first support member 121 and the second support member 122 provides higher mechanical strength and stability. The first support member 121 is mounted on the second support member 122, and through the application of composite materials, it can withstand greater mechanical stress and vibration, making it suitable for various complex operating environments.

[0072] By directly integrating the support components into the battery module 110, the additional support structure in traditional battery packs is reduced, thereby improving space utilization.

[0073] With the above-mentioned configuration, namely the composite support component 120, the top of the CTB battery pack 100 can withstand greater stress to protect the battery module 110, thereby improving the service life of the battery module 110 and the CTB battery pack 100.

[0074] Furthermore, when the top of the CTB battery pack 100 can withstand greater stress, the anti-trampling effect is better.

[0075] In some embodiments, the second support member 122 has flanges 1225 on opposite sides, so that the first support member 121 is better confined between the two flanges 1225.

[0076] In some embodiments, the CTB battery pack 100 further includes a housing, which includes a cover, a frame, and a bottom cover, the cover and the bottom cover being located on opposite sides of the frame to form a receiving cavity.

[0077] The cavity is used to house the battery module 110. It is easy to understand that the cavity is sealed to prevent side reactions from occurring inside the battery cell 111 in the battery module 110, which would affect the performance of the battery cell 111.

[0078] In one possible implementation, the housing can be a rectangular structure, and the size of the housing can be greater than or equal to the size of the battery module 110, so that the housing can support the battery module 110.

[0079] For example, the size or shape of the receiving cavity is matched with the size and shape of the battery module 110. Specifically, it can be adjusted according to the actual situation. This application embodiment does not impose too many restrictions here.

[0080] In this embodiment, the battery module 110 can be configured as a rectangular structure. The battery module 110 can be located inside the housing.

[0081] Understandably, the enclosure is designed to support the battery module 110.

[0082] The dimensions of the aforementioned box can be set according to actual needs, and this application embodiment does not impose any further restrictions.

[0083] Additionally, it should be noted that this embodiment does not limit the shape of the box. For example, the box can be a regular shape such as a cuboid or a cylinder, or it can be other irregular shapes.

[0084] In some embodiments, the CTB battery pack 100 further includes a liquid cooler, wherein the liquid cooler exchanges heat with the battery module 110.

[0085] like Figures 1 to 4 As shown, in some alternative embodiments, the CTB battery pack 100 also includes at least two adhesive layers;

[0086] The second support member 122 also has at least two glue storage tanks 1222. Along the arrangement direction of the battery module 110, the at least two glue storage tanks 1222 are located on opposite sides of the isolation part 1221. The glue layer is located in the glue storage tank 1222 so that the battery cell 111 is attached to the second support member 122 through the glue layer.

[0087] It should be noted that the adhesive layer is located within the adhesive reservoir 1222, allowing the battery cell 111 to be securely attached to the second support member 122 via the adhesive layer. This design provides additional fixing force, preventing the battery cell 111 from shifting during transportation or use, and improving the overall stability of the battery pack.

[0088] In addition, the adhesive layer has a certain degree of elasticity and cushioning capacity, which can effectively absorb and mitigate the impact of external shocks and vibrations on the battery cell 111. This helps protect the battery cell 111, extend its service life, and improve the reliability of the battery pack.

[0089] It should be noted that during battery operation, cell 111 may expand due to thermal effects. The adhesive layer can provide a certain degree of flexibility, allowing cell 111 to have a small amount of room to move during thermal expansion, thereby reducing the pressure of thermal expansion on cell 111 and the supporting structure.

[0090] By providing a glue reservoir 1222 on the second support 122, the positioning and thickness of the glue layer can be precisely controlled. The design of the glue reservoir 1222 makes the installation of the glue layer easier and faster, reducing assembly time and complexity.

[0091] In some embodiments, the adhesive reservoir 1222 is located at the bottom of the second support 122, which facilitates direct bonding to the shoulder of the battery cell 111 via the adhesive layer.

[0092] In some embodiments, the adhesive layer can be structural adhesive, which is filled into the adhesive storage tank 1222.

[0093] In some alternative embodiments, the second support member 122 further has a retaining edge 1223, and the retaining edge 1223, the isolation portion 1221 and the bottom of the second support member 122 form a glue storage tank 1222.

[0094] It should be noted that the baffle 1223 effectively restricts the movement of the adhesive layer within the adhesive reservoir 1222, ensuring that the adhesive layer can be stably held in the predetermined position. This fixation improves the adhesion between the cell 111 and the second support 122, further enhancing the structural stability of the battery pack.

[0095] The glue reservoir 1222 formed by the retaining edge 1223 can effectively accommodate the glue layer component and prevent the glue layer component material from overflowing during assembly or use.

[0096] The shape and position of the adhesive layer can be precisely controlled by the adhesive storage tank 1222 formed by the retaining edge 1223, the isolation part 1221 and the bottom.

[0097] In some alternative embodiments, the isolation section 1221 is an isolation plate;

[0098] Along the thickness direction of the CTB battery pack 100, the length of the retaining edge 1223 is less than the length of the insulating portion 1221.

[0099] It should be noted that the separator provides sufficient physical isolation between the cells 111, preventing direct contact between adjacent cells 111. This design helps prevent the propagation of thermal runaway in the event of a cell 111 failure, thus improving the safety of the battery pack.

[0100] The design of the baffle 1223 being shorter than the separator ensures the effectiveness of the adhesive reservoir 1222 without compromising the separator's isolation function. Because the separator extends further in the thickness direction, it can participate more effectively in thermal management. The separator helps guide heat flow, promotes thermal uniformity within the battery pack, and prevents localized overheating.

[0101] Because the flange 1223 is shorter, it is easier to operate the adhesive layer parts during assembly, and it also provides convenience for subsequent maintenance and repair.

[0102] Continue to refer to Figures 1 to 4 In some alternative embodiments, the second support member 122 has a groove 1224 and the first support member 121 has a protrusion 12121, the protrusion 12121 extending toward the second support member 122 and engaging in the groove 1224, so that the first support member 121 is disposed on the second support member 122.

[0103] It should be noted that the design of the protrusion 12121 engaging with the groove 1224 provides a reliable mechanical connection, allowing the first support 121 to be securely mounted on the second support 122. This connection method improves the stability between components and prevents loosening or displacement during use.

[0104] This convex-concave fit design makes the assembly process more intuitive and simple. The assembler only needs to align the protrusion 12121 of the first support member 121 and snap it into the groove 1224 of the second support member 122 to complete the installation, reducing assembly time and labor costs.

[0105] The mating of the groove 1224 and the protrusion 12121 ensures precise alignment between the first support 121 and the second support 122. This precise positioning helps ensure the overall structural accuracy of the battery pack, improving product quality and consistency. By employing this mechanical connection method, the need for additional fasteners is reduced, thereby lowering material costs and weight while increasing production efficiency.

[0106] In some alternative embodiments, the first support member 121 includes a first support plate 1211 and a second support plate 1212 connected together, and a protrusion 12121 is provided on the second support plate 1212.

[0107] It should be noted that a modular design is achieved by dividing the first support member 121 into two parts: a first support plate 1211 and a second support plate 1212. The connection design of the first support plate 1211 and the second support plate 1212 can effectively distribute and bear the mechanical stress from the battery pack, improving the overall durability and reliability.

[0108] The protrusion 12121 is provided on the second support plate 1212 and is inserted into the groove 1224 of the second support member 122, ensuring a stable connection between the first support member 121 and the second support member 122.

[0109] In some embodiments, the first support plate 1211 is welded to the second support plate 1212.

[0110] Continue to refer to Figures 1 to 4 In some optional embodiments, the second support plate 1212 is provided with a plurality of protruding ribs 12122 and a plurality of concave ribs 12123;

[0111] Along the extending direction of the second support plate 1212, a plurality of protruding ribs 12122 and a plurality of concave ribs 12123 are arranged alternately;

[0112] The protruding rib 12122 abuts against the first support plate 1211, and the concave rib 12123 has a gap with the first support plate 1211.

[0113] It should be noted that the presence of the protruding rib 12122 increases the structural strength and rigidity of the second support plate 1212. Through direct contact with the first support plate 1211, the protruding rib 12122 provides additional support, helping to disperse and bear mechanical stress, and improving overall durability and resistance to deformation. The design of the concave rib 12123, without significantly affecting structural strength, creates a buffer gap between the concave rib 12123 and the first support plate 1211, expanding the range of buffer gap arrangements and resulting in a better buffering effect.

[0114] The staggered arrangement of the raised ribs 12122 and concave ribs 12123 simplifies the manufacturing process. Standardized design and modular components make the assembly process more intuitive and efficient, reducing production time and costs.

[0115] In some embodiments, the staggered arrangement of the convex ribs 12122 and concave ribs 12123 provides greater design flexibility, which can be adjusted and optimized according to specific mechanical requirements to adapt to different application scenarios.

[0116] It should be noted that the first support plate 1211 and the second support plate 1212 are first welded together to form the first support member 121, and then the second support member 122 is combined together. After the lower glue storage groove 1222 of the second support member 122 is filled with structural glue, it is pasted to the shoulder of the two adjacent rows of battery cells 111. The lower isolation part 1221 of the second support member 122 is used to separate the upper part of the two adjacent rows of battery cells 111.

[0117] Continue to refer to Figures 1 to 4 In some alternative embodiments, the CTB battery pack 100 further includes a first buffer 130 and a second buffer 140;

[0118] The first buffer 130 is disposed on the first support 121, and the second buffer 140 is disposed between the second support 122 and the battery cell 111.

[0119] It should be noted that the first buffer 130 and the second buffer 140 provide additional shock absorption and cushioning layers, effectively absorbing and mitigating the impact of external shocks and vibrations on the battery pack. This helps protect the battery cell 111, extends its service life, and improves the overall reliability of the battery pack.

[0120] The presence of a buffer provides additional protection when the battery pack is subjected to accidental impacts, preventing direct mechanical damage to the cells 111 and thus improving the safety of the battery pack.

[0121] The buffer can provide flexible connections between the various components of the battery pack, reduce the concentration of mechanical stress, and prevent material fatigue and damage caused by stress concentration.

[0122] Specifically, a first buffer 130 is attached to the upper part of the first support 121, and a second buffer 140 is attached to the lower part of the second support 122. At the same time, the second buffer 140 is placed above the electrode of the module cell 111.

[0123] In some alternative embodiments, the first support member 121 is a sheet metal part; and / or,

[0124] The second support component 122 is a plastic part.

[0125] It should be noted that sheet metal parts typically possess excellent mechanical strength and rigidity, providing a robust support structure for the battery pack. Sheet metal parts can be optimized for weight reduction while maintaining necessary strength and rigidity.

[0126] Sheet metal materials typically have good thermal conductivity, which can effectively contribute to the thermal management of battery packs.

[0127] In some embodiments, sheet metal parts can be processed into various complex shapes through processes such as stamping, bending, and welding, providing a high degree of design flexibility. This flexibility allows designers to optimize the structure and function of the battery pack according to specific needs.

[0128] It should be noted that plastic materials are generally lighter than metals, which helps to reduce the overall weight of the battery pack and improve energy density and efficiency, especially in applications such as electric vehicles that require lightweight design.

[0129] Plastic materials have excellent electrical insulation properties, which is especially important in battery packs because they can prevent electrical short circuits between cells 111 or between cells 111 and other components, thus improving the safety of the battery pack.

[0130] Plastic materials have good corrosion resistance and can remain stable in humid or chemical environments. They are not easily oxidized or corroded, thus extending the service life of the battery pack.

[0131] The CTB battery pack provided in this application includes a battery module, including at least two battery cells; and a composite support assembly located on the battery module. The composite support assembly includes a first support member and a second support member. The first support member is disposed on the second support member, and the second support member has an isolation portion that extends toward the battery module and is located between two adjacent battery cells.

[0132] By using composite support components, the top of the CTB battery pack can withstand greater stress, thus protecting the battery modules and improving the lifespan of both the battery modules and the CTB battery pack.

[0133] In addition, embodiments of this application also provide an electric vehicle, including a CTB battery pack 100.

[0134] It should be noted that the specific structure of the CTB battery pack 100 will not be discussed in detail here; please refer to the above.

[0135] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0136] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0137] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A CTB battery pack (100), characterized in that, include: The battery module (110) includes at least two battery cells (111); A composite support assembly (120) is located on the battery module (110). The composite support assembly (120) includes a first support member (121) and a second support member (122). The first support member (121) is disposed on the second support member (122). The second support member (122) has an isolation portion (1221) that extends toward the battery module (110) and is located between two adjacent battery cells (111).

2. The CTB battery pack (100) according to claim 1, characterized in that, The CTB battery pack (100) also includes at least two adhesive layers; The second support member (122) also has at least two glue storage tanks (1222). Along the arrangement direction of the battery module (110), at least two of the glue storage tanks (1222) are located on opposite sides of the isolation part (1221). The adhesive layer is located in the glue storage tank (1222) so that the battery cell (111) is attached to the second support member (122) through the adhesive layer.

3. The CTB battery pack (100) according to claim 2, characterized in that, The second support member (122) also has a retaining edge (1223), the retaining edge (1223), the isolation portion (1221) and the bottom of the second support member (122) forming the glue storage tank (1222).

4. The CTB battery pack (100) according to claim 3, characterized in that, The isolation section (1221) is an isolation plate; Along the thickness direction of the CTB battery pack (100), the length of the retaining edge (1223) is less than the length of the insulating portion (1221).

5. The CTB battery pack (100) according to any one of claims 1-4, characterized in that, The second support member (122) has a groove (1224), and the first support member (121) has a protrusion (12121). The protrusion (12121) extends toward the second support member (122) and is engaged in the groove (1224) so ​​that the first support member (121) is disposed on the second support member (122).

6. The CTB battery pack (100) according to claim 5, characterized in that, The first support member (121) includes a first support plate (1211) and a second support plate (1212) connected together, and the protrusion (12121) is provided on the second support plate (1212).

7. The CTB battery pack (100) according to claim 6, characterized in that, The second support plate (1212) is provided with a plurality of protruding ribs (12122) and a plurality of concave ribs (12123); Along the extending direction of the second support plate (1212), a plurality of the protruding ribs (12122) and a plurality of the concave ribs (12123) are arranged alternately; The protruding rib (12122) abuts against the first support plate (1211), and the concave rib (12123) has a gap with the first support plate (1211).

8. The CTB battery pack (100) according to any one of claims 1-4, characterized in that, The CTB battery pack (100) also includes a first buffer (130) and a second buffer (140); The first buffer (130) is disposed on the first support (121), and the second buffer (140) is disposed between the second support (122) and the battery cell (111).

9. The CTB battery pack (100) according to any one of claims 1-4, characterized in that, The first support member (121) is a sheet metal part; and / or, The second support member (122) is a plastic part.

10. An electric vehicle, characterized in that, Includes the CTB battery pack (100) as described in any one of claims 1 to 9.

Images