CCS assembly, cylindrical power battery and vehicle

Abstract

The invention provides a CCS assembly, a cylindrical power battery and a vehicle, the CCS assembly comprises a confluence assembly, the confluence assembly comprises a plurality of first busbars, the plurality of first busbars are connected between two adjacent battery cells so as to enable the two adjacent battery cells to be connected in series, the first busbars are provided with glue overflow holes, and the glue overflow holes are communicated with the first busbars; the glue overflow hole is communicated with a first gap formed between two adjacent battery cells; the FPC assembly is electrically connected with the confluence assembly, first through holes are formed in the FPC assembly, the first through holes and the glue overflowing holes are arranged in a one-to-one correspondence mode, and the first through holes are communicated with the glue overflowing holes. According to the scheme, the CCS assembly is provided with the glue overflowing hole and the first through hole, and the glue overflowing hole is communicated with the first through hole to form the diffusion channel, so that the polystyrene foam is foamed from the bottom to penetrate through the whole CCS assembly, the stress generated by the polystyrene foam is further dispersed, and the risk that welding points and bonding points fall off or loosen due to the stress is effectively reduced.

Description

Technical Field

[0001] This invention relates to the technical field of cylindrical power batteries, and more specifically, to a CCS module, a cylindrical power battery, and a vehicle. Background Technology

[0002] The battery connection system (CCS module) includes the FPC and busbar. The CCS module is laid flat on the surface of the cylindrical battery cell. Foaming adhesive is injected into the battery pack during the manufacturing process. If the stress is not fully released during the foaming process, it will concentrate the force on the welding points between the cell and the aluminum busbar, the welding points between the FPC and the aluminum busbar, and the bonding points between the NTC and the cell. During driving, the battery pack will experience high-frequency vibrations, and the welding points and bonding points may become loose or detached. This can lead to voltage signal jumps or even complete disconnection in the battery pack, and loosening of temperature sensor bonding points can cause temperature jumps or large temperature differences. Both of these abnormalities can cause the battery pack to report abnormal voltage or temperature, and in severe cases, can force the vehicle to stop, affecting driving safety.

[0003] There is currently no effective solution to the technical problem that welding points and adhesive points on cylindrical power batteries are prone to falling off or loosening in existing technologies. Summary of the Invention

[0004] The main objective of this invention is to provide a CCS module, a cylindrical power battery, and a vehicle to solve the technical problem that welding points and adhesive points on cylindrical power batteries are prone to falling off or loosening.

[0005] To achieve the above objectives, according to one aspect of the present invention, a CCS assembly is provided, comprising: a bus assembly including a plurality of first busbars connected between two adjacent battery cells to connect the two adjacent battery cells in series, wherein the first busbars are provided with overflow holes and the overflow holes are connected to a first gap formed between the two adjacent battery cells; and an FPC assembly electrically connected to the bus assembly, wherein the FPC assembly is provided with first through holes and the first through holes are provided in a one-to-one correspondence with the overflow holes and are connected to the overflow holes.

[0006] Furthermore, the FPC assembly includes at least two FPC boards, which are arranged along a preset direction, and a second gap is provided between two adjacent FPC boards, which is connected to the first gap.

[0007] Furthermore, the first end of the FPC component is electrically connected to the BMS from the board, and the second end of the FPC component is provided with at least one notch, which is connected to the first gap.

[0008] Furthermore, the FPC component is provided with a second through hole, which is connected to the first gap.

[0009] Furthermore, the FPC assembly is electrically connected to the first busbar via a connecting piece. One end of the connecting piece is electrically connected to the FPC assembly, and the other end of the connecting piece passes through the first through hole and is electrically connected to the first busbar.

[0010] Furthermore, at least two FPC boards include a first FPC board and a second FPC board. The first FPC board is electrically connected to a portion of the busbar assembly to form a first assembly, and the second FPC board is electrically connected to another portion of the busbar assembly to form a second assembly. The first assembly and the second assembly are connected in series via connectors.

[0011] Furthermore, the first busbar has a bent structure, comprising a first component section, a bent section, and a second component section. The first end of the bent section is connected to the first component section, and the second end of the bent section is connected to the second component section. An overflow hole is provided on the bent section. The first component section is used to connect to the positive electrode of the battery cell, and the second component section is used to connect to the negative electrode of the battery cell.

[0012] Furthermore, the first section is provided with positioning holes, which are used to be positioned opposite to the slot in the center of the positive electrode of the battery cell.

[0013] According to another aspect of the present invention, a cylindrical power battery is provided, the cylindrical power battery including the above-described CCS component.

[0014] According to another aspect of the present invention, a vehicle is provided, the vehicle comprising the aforementioned cylindrical power battery.

[0015] Applying the technical solution of this invention, a first busbar connects two adjacent battery cells to connect them in series. The overflow hole on the first busbar is connected to the first gap formed between the two battery cells. Foaming adhesive can diffuse through the overflow hole within the first gap, and the stress generated during the foaming process can be released through the overflow hole. An FPC assembly is placed on the upper surface of the busbar assembly. A first through-hole on the FPC assembly is connected to the overflow hole. Foaming adhesive diffused through the overflow hole can continue to diffuse through the first through-hole, meaning the stress released after the overflow hole can be further released through the first through-hole. In the above solution, the CCS assembly has an overflow hole and a first through-hole. The overflow hole and the first through-hole are connected to form a diffusion channel, allowing the foaming adhesive to foam from the bottom through the entire CCS assembly, forming a good bond with the top cover of the housing. This further disperses the stress generated by the foaming adhesive, effectively reducing the risk of detachment or loosening of welded and bonded points due to stress, improving the reliability of battery connections, thereby preventing false alarms of abnormal battery pack voltage or temperature, and reducing the risk of vehicles being forced to stop due to battery system failure during driving. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the CCS component in this application is shown;

[0018] Figure 2 This diagram illustrates the positional relationship between the first bus and the FPC component in this application.

[0019] Figure 3 A schematic diagram of the structure of the first busbar in this application is shown;

[0020] Figure 4 This diagram illustrates the positional relationship between the bus component and the FPC component in this application.

[0021] Figure 5 An exploded schematic diagram of the cylindrical power battery in this application is shown;

[0022] Figure 6 A schematic diagram of the cylindrical power battery in this application is shown.

[0023] The above figures include the following reference numerals:

[0024] 1. CCS component;

[0025] 11. Busbar assembly;

[0026] 111. First busbar; 1111. Overflow hole; 1112. First component section; 1113. Bending section; 1114. Second component section; 1115. Positioning hole; 112. Second busbar; 113. Third busbar; 114. Fourth busbar;

[0027] 12. FPC assembly; 121. First FPC board; 122. Second FPC board; 123. Second gap; 124. First through hole; 125. Notch; 126. Second through hole;

[0028] 13. Connecting piece;

[0029] 2. Battery cell assembly;

[0030] 21. First gap;

[0031] 3. Box body;

[0032] 4. BMS slave board. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] 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.

[0035] It should be noted that the terms "first," "second," etc., 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 terms can be used interchangeably 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. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0036] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0037] Combination Figures 1 to 6 As shown, according to a specific embodiment of this application, a CCS component is provided.

[0038] Specifically, the CCS assembly includes a bus assembly 11 and an FPC assembly 12. The bus assembly 11 includes multiple first busbars 111 connected between two adjacent battery cells to connect them in series. Each first busbar 111 has an overflow hole 1111, which communicates with a first gap 21 formed between two adjacent battery cells. The FPC assembly 12 is electrically connected to the bus assembly 11. The FPC assembly 12 has first through holes 124, which correspond one-to-one with the overflow holes 1111 and communicate with them.

[0039] In the embodiments of this application, the first busbar 111 connects two adjacent battery cells to connect them in series. The overflow hole 1111 on the first busbar 111 is connected to the first gap 21 formed between the two battery cells. The foaming adhesive in the first gap 21 can diffuse through the overflow hole 1111, and the stress generated by the foaming adhesive during the foaming process can be released through the overflow hole 1111. The FPC assembly 12 is covered on the upper surface of the busbar assembly 11. The first through hole 124 on the FPC assembly 12 is connected to the overflow hole 1111. The foaming adhesive diffused through the overflow hole 1111 can continue to diffuse through the first through hole 124, that is, the stress released after the overflow hole 1111 can be further released through the first through hole 124. In the above scheme, the CCS component 1 is provided with an overflow hole 1111 and a first through hole 124. The overflow hole 1111 and the first through hole 124 are connected to form a diffusion channel, so that the foaming adhesive can be foamed from the bottom and pass through the entire CCS component 1 to form a good bond with the top cover of the housing 3. This further disperses the stress generated by the foaming adhesive, effectively reduces the risk of detachment or loosening of the welding points and bonding points due to stress, improves the reliability of the battery connection, and thus prevents false alarms of abnormal battery pack voltage or temperature, and reduces the risk of the vehicle being forced to stop due to battery system failure during driving.

[0040] Furthermore, the FPC assembly 12 includes at least two FPC boards, which are arranged along a preset direction. A second gap 123 is provided between two adjacent FPC boards, and the second gap 123 is connected to the first gap 21.

[0041] In the embodiments of this application, the FPC component 12 has a split structure, with a second gap 123 formed between two adjacent FPC boards. The second gap 123 is connected to the first gap 21, that is, the foam in the first gap 21 can diffuse through the second gap 123, so that the stress generated by the foam can be uniformly released in a wider area, avoiding excessive stress concentration at a certain point, greatly reducing the risk of loosening or falling off of the connection point due to stress, thereby strengthening the structural stability and signal transmission reliability of the entire CCS component 1.

[0042] like Figure 1 , Figure 4 As shown, the FPC assembly 12 includes a first FPC plate 121 and a second FPC plate 122. The first FPC plate 121 and the second FPC plate 122 are spaced apart along the width direction of the cylindrical power battery, so that a second gap 123 is formed between the first FPC plate 121 and the second FPC plate 122. The FPC assembly 12 is placed on top of the cell assembly 2. A first gap 21 is formed between two adjacent cells. Foam is filled into the first gap 21. The second gap 123 is connected to the first gap 21, that is, the foam in the first gap 21 can diffuse through the second gap 123, thereby further releasing the stress of the foam.

[0043] Furthermore, the first end of the FPC component 12 is electrically connected to the BMS slave board 4, and the second end of the FPC component 12 is provided with at least one notch 125, which is connected to the first gap 21.

[0044] In the embodiments of this application, the first end of the FPC component 12 is electrically connected to the BMS slave board 4. The FPC component 12 transmits the voltage and temperature signals on the cell component 2 to the BMS slave board 4 so that the BMS slave board 4 can monitor the operating voltage and temperature of the cell component 2 in real time, thereby ensuring operational safety. The notch 125 provided at the second end of the FPC component 12 is connected to the first gap 21. The foam in the first gap 21 can diffuse through the notch 125, thereby further releasing the stress of the foam and reducing the risk of structural deformation caused by the stress of the foam.

[0045] like Figure 1 As shown, the FPC assembly 12 has a first end and a second end, which are distributed along the length of the FPC assembly 12. The first end of the FPC assembly 12 is welded to the BMS slave board 4, eliminating the need for a transfer cable harness between the BMS slave board 4 and the cell assembly 2, thus saving installation costs and space, and improving installation reliability. The second end of the FPC assembly 12 has multiple notches 125, which are spaced apart along the width of the FPC assembly 12. The shape of the notches 125 can be any shape, such as rectangle or arc, as long as it allows the notches 125 to communicate with the first gap 21.

[0046] Furthermore, the FPC assembly 12 is provided with a second through hole 126, which is connected to the first gap 21.

[0047] In the embodiments of this application, the second through hole 126 on the FPC component 12 is connected to the first gap 21, that is, the foam in the first gap 21 can be diffused through the second through hole 126, so that the stress generated by the foam can be uniformly released in a wider area, avoiding excessive stress concentration at a certain point, greatly reducing the risk of loosening or falling off the connection point due to stress, thereby strengthening the structural stability and signal transmission reliability of the entire CCS component 1.

[0048] like Figure 1 As shown, the FPC component 12 is provided with a plurality of second through holes 126, which are evenly distributed on the FPC component 12. Each second through hole 126 communicates with the first gap 21, so that the foaming adhesive in the first gap 21 can diffuse through the second through holes 126, thereby further increasing the range of the foaming adhesive diffusion port and reducing the stress generated by the foaming adhesive during the foaming process. The shape of the second through hole 126 can be arbitrary, such as rectangular or arc-shaped, as long as it can communicate with the first gap 21.

[0049] Furthermore, the FPC assembly 12 is electrically connected to the first busbar 111 via a connecting piece 13. One end of the connecting piece 13 is electrically connected to the FPC assembly 12, and the other end of the connecting piece 13 passes through the first through hole 124 and is electrically connected to the first busbar 111.

[0050] In the embodiments of this application, the FPC component 12 is electrically connected to the busbar component 11 via a connecting piece 13, so that the signal on the battery cell component 2 can be transmitted to the BMS slave board 4 sequentially through the busbar component 11, the connecting piece 13, and the FPC component 12. The connecting piece 13 can pass through the first through hole 124 and be electrically connected to the busbar component 11, that is, part of the connecting piece 13 is exposed within the area of ​​the first through hole 124. During the connection process, the position adjustment of the connecting piece 13 is more flexible, reducing the assembly difficulty of the FPC component 12 and the busbar component 11. At the same time, part of the connecting piece 13 is located within the area of ​​the first through hole 124, and the connection point between the connecting piece 13 and the busbar component 11 is located within the area of ​​the first through hole 124. The foam adhesive can flow within the first through hole 124 to release stress, thereby reducing the impact of stress on the connection point of the connecting piece 13.

[0051] like Figure 1 , Figure 2As shown, the FPC assembly 12 has a first through hole 124, and a first busbar 111 covers the first through hole 124. The overflow hole 1111 of the first busbar 111 communicates with the first through hole 124, meaning that part of the first busbar 111 is exposed within the area where the first through hole 124 is located. One end of the connecting piece 13 is welded to the side of the FPC assembly 12 opposite to the first busbar 111, and the other end of the connecting piece 13 is welded to the first busbar 111. That is, the first through hole 124 not only serves as a stress relief hole, but also as a mounting hole for the FPC assembly 12 and the first busbar 111.

[0052] Furthermore, at least two FPC boards include a first FPC board 121 and a second FPC board 122. The first FPC board 121 is electrically connected to a portion of the busbar assembly 11 to form a first assembly, and the second FPC board 122 is electrically connected to another portion of the busbar assembly 11 to form a second assembly. The first assembly and the second assembly are connected in series via connectors.

[0053] In the embodiments of this application, the first FPC board 121 is electrically connected to a portion of the busbar assembly 11 to form a first assembly, and the second FPC board 122 is electrically connected to another portion of the busbar assembly 11 to form a second assembly. That is, the first assembly can connect a portion of the battery cells in the battery cell assembly 2 in series, and the second assembly can connect another portion of the battery cells in the battery cell assembly 2 in series. After the two sets of battery cells are connected in series respectively, the two sets of battery cells are connected in series through connectors to realize the batch-by-batch series connection of the battery cell assembly 2. This not only improves the assembly speed and reduces the error rate in the production process, but also reduces the heat generated by the battery cell assembly 2 during the installation process to a certain extent.

[0054] like Figure 4 As shown, the bus assembly includes a first bus 111, a second bus 112, a third bus 113, and a fourth bus 114. The FPC board includes a first FPC board 121 and a second FPC board 122. Both the first FPC board 121 and the second FPC board 122 are provided with four rows of buses. The welding direction of the buses on the first FPC board 121 is different from that of the buses on the second FPC board 122.

[0055] like Figure 4As shown, the specific connection method between the first FPC board 121 and the bus assembly is as follows: the bus at the upper right corner of the first FPC board 121 is the second bus 112, which serves as the starting bus. One end of the second bus 112 is connected to the positive terminal of the battery cell, and the other end is connected to an external device. The bus at the upper left corner of the first FPC board 121 is the third bus 113, which has a bent structure and is used to connect two adjacent rows of battery cells. The bus at the lower left corner of the first FPC board 121 is the fourth bus 114, which is connected to the battery cell by one end. The negative terminal of the battery cell is connected, and the other end of the fourth bus 114 at this location is connected to the bus on the second FPC board 122. The first row of buses on the first FPC board 121 is arranged sequentially from right to left, the second row of buses on the first FPC board 121 is arranged sequentially from left to right, the third row of buses on the first FPC board 121 is arranged sequentially from right to left, the fourth row of buses on the first FPC board 121 is arranged sequentially from left to right, and the fifth row of buses on the first FPC board 121 is arranged sequentially from right to left. The first row of buses, the second row of buses, the third row of buses, the fourth row of buses, and the fifth row of buses are arranged sequentially from top to bottom.

[0056] like Figure 4 As shown, the specific connection method between the second FPC board 122 and the bus assembly is as follows: The bus at the lower right corner of the second FPC board 122 is the fourth bus 114, which serves as the starting bus. One end of the fourth bus 114 is connected to the negative terminal of the battery cell, and the other end is connected to an external device. The bus at the lower left corner of the second FPC board 122 is the third bus 113, which has a bent structure and is used to connect two adjacent rows of battery cells. The bus at the upper left corner of the second FPC board 122 is the second bus 112. One end of the second bus 112 is connected to the positive terminal of the battery cell, and the other end of the second bus 112 is connected to the bus on the first FPC board 121. The sixth row of buses on the second FPC board 122 is arranged sequentially from right to left, the seventh row of buses on the second FPC board 122 is arranged sequentially from left to right, the eighth row of buses on the second FPC board 122 is arranged sequentially from right to left, the ninth row of buses on the second FPC board 122 is arranged sequentially from left to right, and the tenth row of buses on the second FPC board 122 is arranged sequentially from right to left. The sixth, seventh, eighth, ninth, and tenth rows of buses are arranged sequentially from bottom to top.

[0057] like Figure 4As shown, the fourth bus 114 at the lower left corner of the fifth bus is connected to the second bus at the upper left corner of the tenth bus via a connector, so as to realize the connection between the bus on the first FPC board 121 and the second FPC board 122.

[0058] Furthermore, the first busbar 111 has a bent structure. The first busbar 111 includes a first component section 1112, a bent section 1113, and a second component section 1114. The first end of the bent section 1113 is connected to the first component section 1112, and the second end of the bent section 1113 is connected to the second component section 1114. An overflow hole 1111 is provided on the bent section 1113. The first component section 1112 is used to connect to the positive electrode of the battery cell, and the second component section 1114 is used to connect to the negative electrode of the battery cell.

[0059] In the embodiments of this application, the positive and negative terminals of the battery cell are arranged with a height difference, and the first busbar 111 is designed as a bent structure to adapt to the connection with the battery cell; the overflow hole 1111 is provided on the bent section 1113 to reserve sufficient overflow space for the foam adhesive, thereby increasing the overflow speed and quickly releasing stress.

[0060] like Figure 3 As shown, the first busbar 111 is formed by bending a thin plate. The first busbar 111 includes a first component section 1112, a bent section 1113, and a second component section 1114. The bent section 1113 connects the first component section 1112 and the second component section 1114. The bent section 1113 is vertically arranged, while the first component section 1112 and the second component section 1114 are horizontally arranged. An overflow hole 1111 is provided on the bent section 1113. The edge of the second component section 1114 is provided with an arc-shaped notch, which is used to avoid the positive electrode of the battery cell.

[0061] Furthermore, the first section 1112 is provided with a positioning hole 1115, which is used to be positioned opposite to the slot in the middle of the positive electrode of the battery cell.

[0062] In the embodiments of this application, the positioning hole 1115 is aligned with the slot in the center of the positive electrode of the battery cell, ensuring precise alignment between the FPC assembly 12 and the battery cell. This design greatly simplifies the assembly process of the CCS assembly 1, enabling the FPC assembly 12 to be installed quickly and accurately within a limited space, reducing assembly time, improving assembly efficiency, and lowering the production error rate caused by inaccurate assembly. Additionally, the positioning hole 1115 can serve as a clearance hole to avoid rivet fasteners subsequently installed at the slot.

[0063] According to another specific embodiment of this application, a cylindrical power battery is provided, which includes the CCS component 1 in the above embodiment.

[0064] In the embodiments of this application, the CCS assembly 1 is provided with an overflow hole 1111 and a first through hole 124. The overflow hole 1111 and the first through hole 124 are connected to form a diffusion channel, so that the foaming adhesive can be foamed from the bottom and pass through the entire CCS assembly 1 to form a good bond with the top cover of the housing 3. This further disperses the stress generated by the foaming adhesive, effectively reducing the risk of detachment or loosening of the welding points and adhesive points due to stress, thereby making the connection of the cylindrical power battery more reliable.

[0065] like Figure 5 , Figure 6 As shown, the cylindrical power battery includes a housing 3, a cell assembly 2, and a CCS assembly 1. The cell assembly 2 is located inside the housing 3, and the CCS assembly 1 is connected above the cell assembly 2. The CCS assembly 1 includes a busbar assembly 11 and an FPC assembly 12. The busbar assembly 11 includes multiple first busbars 111, which are connected between two adjacent cells to connect them in series. Each first busbar 111 has an overflow hole 1111, which is connected to a first gap 21 formed between two adjacent cells. The FPC assembly 12 is electrically connected to the busbar assembly 11. The FPC assembly 12 has a first through hole 124, which corresponds to the overflow hole 1111 and is connected to the overflow hole 1111.

[0066] According to another specific embodiment of this application, a means of transportation is provided, which includes the cylindrical power battery described in the above embodiments. The means of transportation includes at least: a vehicle and an aircraft.

[0067] In the embodiments of this application, the connection points of the cylindrical power battery are reliably connected, preventing false alarms of abnormal battery pack voltage or temperature, reducing the risk of the vehicle being forced to stop due to battery system failure during driving, and improving the safety performance of the vehicle.

[0068] 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.

[0069] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0070] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A CCS component, characterized in that, include: The bus assembly (11) includes a plurality of first busbars (111), which are connected between two adjacent battery cells to connect the two adjacent battery cells in series. The first busbars (111) are provided with overflow holes (1111), which are connected to a first gap (21) formed between two adjacent battery cells. FPC component (12), the FPC component (12) is electrically connected to the bus component (11), the FPC component (12) is provided with a first through hole (124), the first through hole (124) is provided with an overflow hole (1111) corresponding to each other, and the first through hole (124) is connected to the overflow hole (1111).

2. The CCS component according to claim 1, characterized in that, The FPC assembly (12) includes at least two FPC boards, which are arranged along a preset direction. A second gap (123) is provided between two adjacent FPC boards, and the second gap (123) is connected to the first gap (21).

3. The CCS component according to claim 1 or 2, characterized in that, The first end of the FPC component (12) is electrically connected to the BMS slave board (4), and the second end of the FPC component (12) is provided with at least one notch (125), which is connected to the first gap (21).

4. The CCS component according to claim 1 or 2, characterized in that, The FPC component (12) is provided with a second through hole (126), which is connected to the first gap (21).

5. The CCS component according to claim 1 or 2, characterized in that, The FPC assembly (12) is electrically connected to the first busbar (111) via a connecting piece (13). One end of the connecting piece (13) is electrically connected to the FPC assembly (12), and the other end of the connecting piece (13) passes through the first through hole (124) and is electrically connected to the first busbar (111).

6. The CCS component according to claim 2, characterized in that, At least two of the FPC boards include a first FPC board (121) and a second FPC board (122). The first FPC board (121) is electrically connected to a portion of the busbar assembly (11) to form a first assembly, and the second FPC board (122) is electrically connected to another portion of the busbar assembly (11) to form a second assembly. The first assembly and the second assembly are connected in series by a connector.

7. The CCS component according to claim 1 or 2, characterized in that, The first busbar (111) is a bent structure. The first busbar (111) includes a first component section (1112), a bent section (1113), and a second component section (1114). The first end of the bent section (1113) is connected to the first component section (1112), and the second end of the bent section (1113) is connected to the second component section (1114). The overflow hole (1111) is provided on the bent section (1113). The first component section (1112) is used to connect to the positive electrode of the battery cell, and the second component section (1114) is used to connect to the negative electrode of the battery cell.

8. The CCS component according to claim 7, characterized in that, The first component segment (1112) is provided with a positioning hole (1115), which is used to be positioned opposite to the slot in the middle of the positive electrode of the battery cell.

9. A cylindrical power battery, characterized in that, The cylindrical power battery includes the CCS component as described in any one of claims 1-8.

10. A means of transportation, characterized in that, The vehicle includes the cylindrical power battery as described in claim 9.

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