Cylindrical battery system

Abstract

The utility model provides a kind of cylindrical battery system, including box, connector and glue blocking structure, multiple edge beams of box are connected with bottom plate and are enclosed into containing groove, at least one edge beam in multiple edge beams is equipped with avoiding via hole;The first end of connector is electrically connected with copper bar located in containing groove, and the second end of connector is set out avoiding via hole;Glue blocking structure is arranged at the position of edge beam with avoiding via hole, and is sealedly connected with edge beam, to separate containing groove into battery compartment and electrical compartment;The electrical connection of the first end of connector and copper bar is located in electrical compartment, battery and foamed glue are located in battery compartment.The utility model solves the prior art in order to prevent foamed glue to penetrate connector, need manual before foaming to the surface of connector manual smearing structural glue, cannot ensure sealing reliability, and consume a lot of operating time and additional structural glue, reduce production efficiency, increase the problem of production cost.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and more specifically, to a cylindrical battery system. Background Technology

[0002] In existing technologies, when fixing CTP (Cell To Pack) cylindrical battery systems with foam, it is common to have the Z-axis height of the connector and the battery compartment overlap. However, when pouring foam, the foaming tooling is difficult to effectively block the foam, causing the connector to be easily submerged in the foam. This can lead to problems such as loose electrical connections or foam leakage from the connector, requiring additional rework and increasing production costs and time.

[0003] Currently, to solve the above problems, a common practice is to manually apply structural adhesive to the surface of the connector before foaming to prevent the foam from penetrating. However, this manual operation method is difficult to guarantee the stability of the sealing quality, and it consumes a lot of operation time and additional structural adhesive, which reduces production efficiency and increases production costs. Utility Model Content

[0004] The main objective of this invention is to provide a cylindrical battery system that solves the problem in the prior art where, in order to prevent foam from seeping into the connector, structural adhesive needs to be manually applied to the surface of the connector before foaming, which cannot ensure sealing reliability, consumes a lot of operation time and additional structural adhesive, reduces production efficiency and increases production costs.

[0005] To achieve the above objectives, this utility model provides a cylindrical battery system, including a housing, a connector, and a sealing structure. The housing includes multiple side beams and a base plate. The side beams are connected to the base plate and form a receiving groove. At least one of the side beams has a clearance through hole. The connector passes through the clearance through hole, and its first end is electrically connected to a copper busbar located in the receiving groove. The second end of the connector extends out of the clearance through hole. The sealing structure is located at the position of the clearance through hole on the side beam and is sealed to the side beam to divide the receiving groove into a battery compartment and an electrical compartment. The battery compartment is used to at least house the electrical connection between the first end of the connector and the copper busbar, which is located in the electrical compartment. The battery cell and foam are located in the battery compartment.

[0006] In one exemplary embodiment, the adhesive barrier structure is connected to the side beam by fasteners, and the joint between the adhesive barrier structure and the side beam is coated with structural adhesive or sealant.

[0007] In one exemplary embodiment, the cylindrical battery system has multiple sets of connector groups, which are disposed on the same side beam and include multiple connectors in the same set of connector groups; wherein, there are multiple adhesive-blocking structures, which correspond one-to-one with the multiple sets of connector groups to form multiple electrical compartments for respectively accommodating the multiple sets of connector groups; or, there is a single adhesive-blocking structure, which divides the receiving groove into a battery compartment and an electrical compartment, and the multiple sets of connector groups are all located in the same electrical compartment.

[0008] In an exemplary embodiment, the bottom of the side beam has a first flange structure, which is folded towards the receiving groove side; the adhesive blocking structure includes an adhesive blocking body, which is C-shaped, and the bottom of the C-shaped adhesive blocking body has a second flange structure, which is folded towards the electrical compartment side so that the second flange structure overlaps the first flange structure, and the first flange structure and the second flange structure are connected by fasteners; both sides of the C-shaped adhesive blocking body have third flange structures, and the third flange structures are connected to the side beam by fasteners.

[0009] In an exemplary embodiment, the adhesive barrier body includes a first plate and two second plates, wherein the first plate extends along a direction parallel to the side beam having the clearance through hole; the two second plates are respectively connected to both sides of the first plate extending in the direction of extension and form a C shape; the second flange structure is C-shaped and is sequentially connected to the bottom of the first second plate, the bottom of the first plate, and the bottom of the second second plate; and two third flange structures are respectively connected to the side of the two second plates opposite to the first plate.

[0010] In one exemplary embodiment, the height of the top surface of the adhesive barrier structure is not lower than the height of the top surface of the side beam, and an opening is formed between the top surface of the adhesive barrier structure and the top surface of the side beam having a clearance through hole.

[0011] In one exemplary embodiment, the height difference between the top surface of the adhesive barrier structure and the top surface of the side beam is 0 to 10 mm.

[0012] In one exemplary embodiment, the cylindrical battery system further includes a support frame, at least a portion of which is located within the electrical compartment, with one end of the support frame connected to a side beam having a clearance hole, and the other end of the support frame connected to a first plate; wherein the connection between the support frame and the first plate is located at an opening to support the adhesive barrier structure at the opening.

[0013] In one exemplary embodiment, there are multiple support frames connected to the same adhesive barrier structure, and the multiple support frames are spaced apart along the extension direction of the side beam.

[0014] In one exemplary embodiment, the support frame is detachably connected to a side beam having a clearance through-hole.

[0015] The present invention provides a cylindrical battery system comprising a housing, connectors, and a sealing structure. The housing includes multiple side beams and a base plate. The side beams are connected to the base plate and form a receiving groove. At least one of the side beams has a clearance through hole. The connector passes through the clearance through hole, with its first end electrically connected to a copper busbar located in the receiving groove, and its second end extending out of the clearance through hole. The sealing structure is located at the position of the clearance through hole on the side beam and is sealed to the side beam to divide the receiving groove into a battery compartment and an electrical compartment. The electrical connection between the first end of the connector and the copper busbar is located in the electrical compartment, while the battery cell and foam are located in the battery compartment.

[0016] By setting up a sealant structure, during the process of fixing the battery cells by applying expanding foam into the battery compartment, the sealant structure can effectively prevent the expanding foam from seeping into the electrical compartment during the curing process. This avoids the risk of electrical short circuits at the electrical connection between the first end of the connector and the copper busbar, as well as the occurrence of loose connections at the electrical connection between the first end of the connector and the copper busbar, and the occurrence of expanding foam leakage. This greatly reduces subsequent rework, eliminates the need for manual application of structural adhesive to the surface of the connector before foaming, and does not consume a lot of operation time or additional structural adhesive, which helps to improve production efficiency and reduce production costs. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of a cylindrical battery according to an alternative embodiment of the present invention is shown;

[0019] Figure 2 It shows Figure 1 A schematic diagram of the exploded structure of a cylindrical battery;

[0020] Figure 3 It shows Figure 2 A schematic diagram of the internal structure of a cylindrical battery, in which the top cover is omitted;

[0021] Figure 4 It shows Figure 3 A schematic diagram of the side beams and adhesive-blocking structure of the cylindrical battery casing in the assembled state;

[0022] Figure 5 It shows Figure 4 Another structural diagram of the side beams and the adhesive barrier structure in the assembled state;

[0023] Figure 6 It shows Figure 5 A structural diagram showing the side beams and the adhesive barrier structure in a disassembled state.

[0024] Figure 7 It shows Figure 6 A schematic diagram of the adhesive barrier structure in the image.

[0025] The above figures include the following reference numerals:

[0026] 10. Housing; 11. Side beam; 111. Clearance hole; 112. First flange structure; 12. Base plate; 13. Battery compartment; 131. Expanding foam; 14. Electrical compartment; 15. Copper busbar bracket;

[0027] 20. Connector; 30. Copper busbar;

[0028] 40. Glue-blocking structure; 41. Glue-blocking body; 411. Second flange structure; 412. Third flange structure; 413. First plate; 414. Second plate;

[0029] 50. Fasteners; 60. Connector assembly; 70. Support frame; 80. Top cover; 100. Opening. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] To address the problem that existing technologies require manual application of structural adhesive to the connector surface before foaming to prevent foam from seeping into the connector, which cannot ensure reliable sealing, consumes a lot of operation time and additional structural adhesive, reduces production efficiency, and increases production costs, this utility model provides a cylindrical battery system.

[0032] like Figures 1 to 7As shown, the cylindrical battery system includes a housing 10, a connector 20, and a sealant structure 40. The housing 10 includes multiple side beams 11 and a base plate 12. The multiple side beams 11 are connected to the base plate 12 and form a receiving groove. At least one of the multiple side beams 11 has a clearance through hole 111. The connector 20 passes through the clearance through hole 111, and the first end of the connector 20 is electrically connected to a copper busbar 30 located in the receiving groove. The second end of the connector 20 extends out of the clearance through hole 111. The sealant structure 40 is located at the position of the clearance through hole 111 on the side beam 11 and is sealed to the side beam 11 to divide the receiving groove into a battery compartment 13 and an electrical compartment 14. The electrical connection between the first end of the connector 20 and the copper busbar 30 is located in the electrical compartment 14, and the battery cell and foam 131 are located in the battery compartment 13.

[0033] By setting the adhesive-blocking structure 40, during the process of fixing the battery cell by applying expanding foam 131 into the battery compartment 13, the adhesive-blocking structure 40 can effectively prevent the expanding foam 131 from seeping into the electrical compartment 14 during the curing process. This avoids the risk of electrical short circuit at the electrical connection between the first end of the connector 20 and the copper busbar 30, as well as the occurrence of loose connection at the electrical connection between the first end of the connector 20 and the copper busbar 30, and the leakage of expanding foam 131. This greatly reduces subsequent rework, eliminates the need for manual application of structural adhesive to the surface of the connector 20 before foaming, and does not consume a lot of operation time or additional structural adhesive, which helps to improve production efficiency and reduce production costs.

[0034] It should be noted that in this application, the adhesive-blocking structure 40 is made of PA66+GF30, PBT+GF30, PP+continuous glass fiber, or PU+continuous glass fiber. Technically, these materials are chosen based on their excellent mechanical strength and insulation properties, ensuring that the adhesive-blocking structure 40 can withstand the internal pressure of the battery pack without conducting electricity, thereby reducing the risk of short circuits. In principle, materials such as PA66+GF30 and PBT+GF30, through the addition of glass fiber reinforcement, improve their mechanical strength and heat resistance, while PP+continuous glass fiber or PU+continuous glass fiber, while maintaining a certain strength, provide better chemical corrosion resistance and insulation properties. In terms of effectiveness, the adhesive-blocking structure 40 made of these materials can not only effectively block the foamed adhesive but also withstand the high-pressure environment inside the battery pack, ensuring the structural stability and electrical safety of the battery pack. In other embodiments, the performance of the adhesive-blocking structure 40 can be further improved by selecting other high-strength insulating non-metallic materials, such as PEEK and POM, to meet the higher requirements of cylindrical battery system designs.

[0035] It should be noted that in this application, cylindrical battery system refers to CTP (Cell To Pack) cylindrical battery system.

[0036] Furthermore, the adhesive-blocking structure 40 is connected to the side beam 11 by fasteners 50, and structural adhesive or sealant is applied to the joint between the adhesive-blocking structure 40 and the side beam 11. In this way, by applying structural adhesive or sealant to the joint between the adhesive-blocking structure 40 and the side beam 11, a sealing layer is formed, effectively preventing the foam 131 from seeping through the joint during the curing process. In principle, the use of structural adhesive or sealant utilizes its good adhesion and sealing properties to form a tight connection between the adhesive-blocking structure 40 and the side beam 11, preventing leakage of the foam 131. In terms of effectiveness, this sealing design ensures that the foam 131 cures only in a predetermined area (i.e., the battery compartment 13), avoiding contamination of the docking plug 20 and improving the assembly quality and production efficiency of the cylindrical battery system. In other embodiments, other types of sealing materials, such as rubber sealing strips and silicone sealing rings, can also be used to achieve joint sealing to adapt to different production environments and process requirements.

[0037] Preferably, the fastener 50 is a pop rivet.

[0038] like Figure 2 As shown, the cylindrical battery system has multiple sets of connector groups 60, which are arranged on the same side beam 11, and each set of connector groups 60 includes multiple connectors 20; there are multiple adhesive-blocking structures 40, which correspond one-to-one with the multiple sets of connector groups 60 to form multiple electrical compartments 14 for accommodating the multiple sets of connector groups 60 respectively; or, there is a single adhesive-blocking structure 40, which divides the receiving groove into a battery compartment 13 and an electrical compartment 14, and the multiple sets of connector groups 60 are all located in the same electrical compartment 14.

[0039] It should be noted that in this application, when there are multiple adhesive blocking structures 40, the multiple adhesive blocking structures 40 correspond one-to-one with multiple sets of connector groups 60, thereby dividing the receiving groove into a battery compartment 13 and multiple electrical compartments 14, and the multiple electrical compartments 14 are respectively used to accommodate the corresponding connector groups 60.

[0040] like Figure 4As shown, the bottom of the side beam 11 has a first flange structure 112, which folds towards the receiving groove. The adhesive-blocking structure 40 includes an adhesive-blocking body 41, which is C-shaped. The bottom of the C-shaped adhesive-blocking body 41 has a second flange structure 411, which folds towards the electrical compartment 14 so that the second flange structure 411 overlaps the first flange structure 112. The first flange structure 112 and the second flange structure 411 are connected by fasteners 50. Both sides of the C-shaped adhesive-blocking body 41 have third flange structures 412, which are connected to the side beam 11 by fasteners 50. This ensures the reliability of the connection and sealing between the adhesive-blocking structure 40 and the side beam 11.

[0041] like Figure 7 As shown, the adhesive barrier body 41 includes a first plate 413 and two second plates 414. The first plate 413 extends in a direction parallel to the side beam 11 with the clearance hole 111. The two second plates 414 are respectively connected to both sides of the first plate 413 in the extension direction and form a C-shape. The second flange structure 411 is C-shaped and is sequentially connected to the bottom of the first second plate 414, the bottom of the first plate 413, and the bottom of the second second plate 414. The two third flange structures 412 are respectively connected to the side of the two second plates 414 away from the first plate 413.

[0042] It should be noted that, in this application, the height of the top surface of the adhesive barrier structure 40 is not lower than the height of the top surface of the side beam 11, and an opening 100 is formed between the top surface of the adhesive barrier structure 40 and the top surface of the side beam 11 with the clearance through hole 111.

[0043] Furthermore, the height of the top surface of the aforementioned adhesive barrier structure 40 and the height of the top surface of the side beam 11 are based on the fact that the bottom surface of the adhesive barrier structure 40 and the bottom surface of the side beam 11 are on the same surface.

[0044] Furthermore, the height difference between the top surface of the adhesive barrier structure 40 and the top surface of the side beam 11 is 0 to 10 mm.

[0045] Preferably, the top surface of the adhesive-blocking structure 40 is flush with the top surface of the side beam 11 with the clearance through-hole 111, and an opening 100 is formed between the top surface of the adhesive-blocking structure 40 and the top surface of the side beam 11 with the clearance through-hole 111. This design, with the top surface of the adhesive-blocking structure 40 flush with the flange face of the side beam 11, ensures a tighter seal between the foaming fixture and the housing 10, reducing the possibility of leakage of the foaming adhesive 131. In principle, this design utilizes the principle of planar contact; the tight fit between the adhesive-blocking structure 40 and the flange face of the side beam 11 forms an effective sealing surface, preventing lateral movement of the foaming adhesive 131. In terms of effectiveness, the flush design between the top surface of the adhesive-blocking structure 40 and the side beam 11 (i.e., the flange face connecting the side beam 11 and the top cover 80) not only improves the curing quality of the foaming adhesive 131 but also reduces the difficulty of demolding the fixture, making the entire foaming process more controllable. In other embodiments, the shape and size of the adhesive barrier structure 40 can be adjusted to form a seal with other surfaces of the side beam 11 to accommodate cylindrical battery systems of different designs.

[0046] like Figures 3 to 6 As shown, the cylindrical battery system also includes a support frame 70, at least partially located within the electrical compartment 14. One end of the support frame 70 is connected to a side beam 11 with a clearance hole 111, and the other end is connected to a first plate 413. The connection between the support frame 70 and the first plate 413 is located at an opening 100 to support the adhesive-blocking structure 40 at the opening 100. Thus, the support frame 70 is positioned between the adhesive-blocking structure 40 and the side beam 11 and connected to both via fasteners 50. Technically, the support frame 70 enhances the structural connection between the adhesive-blocking structure 40 and the side beam 11, improving overall stability. In principle, by adding the support frame 70 between the adhesive-blocking structure 40 and the side beam 11 and connecting them with fasteners 50, a triangular support structure is formed, improving the deformation resistance of the adhesive-blocking structure 40. In terms of its functional effect, the use of the support frame 70 not only enhances the structural strength of the adhesive-blocking structure 40, but also provides additional fixing points for mounting other components, such as sensors and wires, thereby improving the utilization rate of the internal space of the cylindrical battery system. In other embodiments, the support effect can be further optimized by changing the material, shape, and number of the support frame 70 to meet the structural requirements of different cylindrical battery systems.

[0047] Furthermore, such as Figure 3 As shown, the cylindrical battery system also includes a copper busbar support 15, which provides effective support for the copper busbar 30. The two ends of the copper busbar support 15 are fixed by support frames 70 on two oppositely arranged side beams 11.

[0048] Optionally, multiple support frames 70 are connected to the same adhesive barrier structure 40, and these multiple support frames 70 are spaced apart along the extension direction of the side beam 11. This ensures that the multiple support frames 70 can have multiple connection points with the first plate 413, thereby ensuring the reliability of the support for the adhesive barrier structure 40.

[0049] It should be noted that in this application, the support frame 70 is detachably connected to the side beam 11 with the clearance hole 111. This ensures that the position of the support frame 70 on the side beam 11 can be adjusted as needed, or that the support frame 70 can be replaced when it becomes worn or damaged.

[0050] like Figure 1 As shown, the cylindrical battery system also includes a top cover 80, which is positioned over the opening of the receiving groove and is sealed to multiple side beams 11. Thus, the top cover 80 serves to protect and seal the components within the receiving groove.

[0051] It should be noted that in this application, when applying expanding foam 131 into the battery compartment 13, a specific foaming tool is installed on the housing 10 to apply expanding foam 131 into the battery compartment 13. The foaming tool avoids the opening 100, so the expanding foam 131 will not be accidentally seeped into the electrical compartment 14 during the application of expanding foam 131.

[0052] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0054] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0055] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0056] It should be noted that the terms "first," "second," etc., used 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 in sequences other than those illustrated or described herein.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cylindrical battery system, characterized in that, include: The box body (10) includes a plurality of side beams (11) and a bottom plate (12). The plurality of side beams (11) are connected to the bottom plate (12) and form a receiving groove. At least one of the plurality of side beams (11) has an avoidance through hole (111). A connector (20) is provided through the clearance through hole (111), and the first end of the connector (20) is electrically connected to the copper busbar (30) located in the receiving groove, and the second end of the connector (20) is provided through the clearance through hole (111). A sealant structure (40) is provided at the location of the clearance through hole (111) on the side beam (11) and is sealed to the side beam (11) to divide the receiving groove into a battery compartment (13) and an electrical compartment (14). The first end of the connector (20) is electrically connected to the copper busbar (30) within the electrical compartment (14), and the battery cell and foam (131) are located within the battery compartment (13).

2. The cylindrical battery system according to claim 1, characterized in that, The adhesive barrier structure (40) is connected to the side beam (11) by fasteners (50), and the joint between the adhesive barrier structure (40) and the side beam (11) is coated with structural adhesive or sealant.

3. The cylindrical battery system according to claim 1, characterized in that, The cylindrical battery system has multiple sets of connector groups (60), the multiple sets of connector groups (60) are arranged on the same side beam (11), and the same set of connector groups (60) includes multiple connectors (20); Among them, there are multiple adhesive-blocking structures (40), and each of the multiple adhesive-blocking structures (40) corresponds one-to-one with a multiple set of connector groups (60) to form multiple electrical compartments (14) for respectively accommodating the multiple sets of connector groups (60); or, The adhesive barrier structure (40) is a single structure, which divides the receiving groove into a battery compartment (13) and an electrical compartment (14). Multiple sets of connector groups (60) are located in the same electrical compartment (14).

4. The cylindrical battery system according to claim 1, characterized in that, The bottom of the side beam (11) has a first flange structure (112), which is folded toward the receiving groove. The adhesive-blocking structure (40) includes: The adhesive-blocking body (41) is C-shaped. The bottom of the C-shaped adhesive-blocking body (41) has a second flange structure (411). The second flange structure (411) is folded towards the electrical compartment (14) so ​​that the second flange structure (411) overlaps the first flange structure (112). The first flange structure (112) and the second flange structure (411) are connected by fasteners (50). The C-shaped adhesive-blocking body (41) has a third flange structure (412) on both sides of its edge, and the third flange structure (412) is connected to the side beam (11) by fasteners (50).

5. The cylindrical battery system according to claim 4, characterized in that, The adhesive barrier body (41) includes: The first plate (413) extends in a direction parallel to the side beam (11) having the clearance through hole (111); Two second plates (414) are connected to both sides of the first plate (413) in the extension direction and form a C-shape. The second flange structure (411) is C-shaped, and the second flange structure (411) is sequentially connected to the bottom of the first second plate (414), the bottom of the first plate (413), and the bottom of the second second plate (414); The two third flange structures (412) are respectively connected to the side of the two second plates (414) opposite to the first plate (413).

6. The cylindrical battery system according to claim 5, characterized in that, The height of the top surface of the adhesive barrier structure (40) is not lower than the height of the top surface of the side beam (11), and an opening (100) is formed between the top surface of the adhesive barrier structure (40) and the top surface of the side beam (11) having the clearance through hole (111).

7. The cylindrical battery system according to claim 6, characterized in that, The height difference between the top surface of the adhesive barrier structure (40) and the top surface of the side beam (11) is 0 to 10 mm.

8. The cylindrical battery system according to claim 6, characterized in that, The cylindrical battery system also includes: A support frame (70), at least a portion of which is located within the electrical compartment (14), with one end of the support frame (70) connected to the side beam (11) having the clearance through hole (111) and the other end of which is connected to the first plate (413); The connection between the support frame (70) and the first plate (413) is located at the opening (100) to support the adhesive barrier structure (40) at the opening (100).

9. The cylindrical battery system according to claim 8, characterized in that, The number of support frames (70) connected to the same adhesive barrier structure (40) is multiple, and the multiple support frames (70) are spaced apart along the extension direction of the side beam (11).

10. The cylindrical battery system according to claim 8, characterized in that, The support frame (70) is detachably connected to the side beam (11) having the clearance through hole (111).

Images