Ccs assembly and battery

Abstract

The application discloses a CCS assembly and a battery, and belongs to the technical field of batteries. The CCS assembly comprises CCS monomers and connecting pieces. The CCS assembly comprises a plurality of CCS monomers. The plurality of CCS monomers are arranged in sequence. Each CCS monomer comprises a flow guide row, which is configured to be electrically connected with a plurality of battery cells of a battery cell unit. The connecting pieces are arranged between adjacent two CCS monomers to detachably connect the flow guide rows of the adjacent two CCS monomers. According to the technical scheme, when the battery is maintained, the faulty battery cell and the CCS monomer connected with the faulty battery cell are directly detached, so that the detaching process does not damage the adjacent normal battery cell and the CCS monomer connected with the normal battery cell. Therefore, when the battery is maintained, the damage between the normal battery cell and the CCS monomer connected with the normal battery cell can be reduced, the maintenance efficiency is improved, and the maintenance operability and the maintenance economy of the battery are improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a CCS module and battery. Background Technology

[0002] In related technologies, the battery includes a CCS (Cell Contacting System) module and multiple battery cells. The CCS module is one of the core components of the battery system. The CCS module includes an insulating support and an FPC (Flexible Printed Circuit) and current-carrying busbar mounted on the insulating support. The main function of the CCS module is to electrically connect several battery cells through the current-carrying busbar and to send the voltage and other signals collected from the circuit to the BMS (Battery Management System) through the FPC board.

[0003] Currently, when a battery cell fails, the entire CCS assembly needs to be disassembled, which makes battery maintenance difficult and costly. Utility Model Content

[0004] This application provides a CCS component and battery to at least partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a CCS assembly is provided. The CCS assembly includes multiple CCS cells and connectors. Multiple CCS cells are arranged sequentially, and each CCS cell includes a current guide configured to be electrically connected to multiple cells of a battery cell unit. Connectors are disposed between two adjacent CCS cells to detachably connect the current guides of adjacent CCS cells. Thus, by dividing the CCS assembly into multiple CCS cells and detachably connecting adjacent CCS cells via connectors, during battery maintenance, the faulty cell and the CCS cell connected to the faulty cell can be directly disassembled. This disassembly process does not damage adjacent normal cells or the CCS cells connected to normal cells, thereby reducing damage to normal cells and the CCS cells connected to normal cells during battery maintenance, improving maintenance efficiency, and consequently enhancing the ease of battery maintenance and its economic benefits.

[0006] Optionally, the connector includes a first conductive element, a second conductive element, and a locking element. One end of the first conductive element is connected to the current-carrying busbar of one CCS unit, one end of the second conductive element is connected to the current-carrying busbar of another CCS unit, and the other ends of the first conductive element and the second conductive element overlap. The locking element detachably connects the overlapping portions of the first and second conductive elements. In this way, by overlapping the first and second conductive elements, the contact area between them is increased, thereby increasing the current-carrying area and improving the current-carrying capacity between two adjacent CCS units.

[0007] Optionally, the locking components include a bolt and a nut. Both the first and second conductive components have first through holes. The end of the bolt's shank passes through the first through holes in both the first and second conductive components and is threadedly connected to the nut. This allows for a detachable connection between CCS cells via bolts and nuts, improving battery maintenance convenience. Furthermore, components removed by releasing the bolts and nuts can be disassembled and recycled, reducing maintenance costs.

[0008] Optionally, each CCS unit also includes a first insulating support, with the flow guide and nut both mounted on the first insulating support, and the nut located at one end of the flow guide. Thus, by fixing the nut to the first insulating support, the position between the flow guide and the nut can be positioned when the flow guide is installed onto the first insulating support, facilitating the smooth threading of the bolt through the first through hole and connecting it to the nut, thereby improving the assembly efficiency of the CCS unit.

[0009] Optionally, the first insulating support is provided with two limiting blocks. The two limiting blocks and the portion of the first insulating support located between the two limiting blocks together define a limiting groove. A nut is disposed at the bottom of the limiting groove, and the overlapping portion of the first conductive element and the second conductive element is located within the limiting groove. In this way, the first and second conductive elements can be limited by the two side walls of the limiting groove, which helps to improve the stability of the first and second conductive elements relative to the first insulating support, thereby improving the reliability of the contact between the first and second conductive elements and thus improving overcurrent stability.

[0010] Optionally, each CCS unit also includes a first insulating support, in which a current-conducting busbar is disposed on the first insulating support. In this way, the first insulating support can both insulate and isolate the part of the current-conducting busbar that is not connected to the battery cell from the battery cell, and position the current-conducting busbar, thereby improving the assembly efficiency of the CCS module.

[0011] Optionally, each first insulating support has a protrusion at one end and a recess at the other end. In two adjacent CCS cells, the protrusion of the first insulating support of one CCS cell is inserted into the recess of the first insulating support of the other CCS cell and contacts the inner surface of the recess. In this way, the positioning between two adjacent CCS cells can be achieved through the cooperation of the protrusion and the recess, which can improve the positional accuracy of the connector connecting the two CCS cells and improve the assembly efficiency of the battery.

[0012] Optionally, the recess is a V-groove, and the two sides of the convex part contact the two groove walls of the recess. This simplifies the structure of the recess and convex parts and allows for multi-directional positioning through the inclined surfaces between the V-groove and the convex part, thereby improving the fitting accuracy between two adjacent CCS units.

[0013] Optionally, each CCS cell further includes a second insulating support located on the side of the current bus away from the first insulating support, to clamp the current bus between the second and first insulating supports. In this way, the side of the current bus away from the cell can be insulated and isolated by the second insulating support, thereby improving the reliability of overcurrent protection within the battery.

[0014] Optionally, each CCS unit also includes an insulating layer disposed between the current-carrying bus and the second insulating support, and covering the current-carrying bus. This improves the insulation protection of the CCS module, thereby enhancing the reliability of overcurrent protection within the CCS module.

[0015] Optionally, the CCS assembly also includes connecting cables, and each CCS unit also includes an electrical signal acquisition device. The electrical signal acquisition device is connected to a current-carrying busbar, and the connecting cables are connected to the electrical signal acquisition device of each CCS unit. In this way, data such as the voltage of each CCS unit can be acquired through the electrical signal acquisition device, and the acquired signals can be sent to the BMS through the connecting cables, thereby monitoring the battery's operating status and improving battery reliability.

[0016] Optionally, the connecting cable is plugged into the electrical signal acquisition device. This improves the ease of connection between the connecting cable and the electrical signal acquisition device, and ensures the reliability of the contact between them, thus facilitating the smooth transmission of electrical signals.

[0017] Optionally, the connecting cable has a connector plug, and the electrical signal acquisition device has a first connector interface, into which the connector plug is inserted. This ensures that the connector plug of the connecting cable is circumferentially covered by the first connector interface of the electrical signal acquisition device, providing sufficient contact area between the electrical signal acquisition device and the connecting cable to guarantee reliable contact and facilitate smooth transmission of electrical signals.

[0018] Optionally, the connecting cable has a second connector interface configured to connect to the BMS; this improves the ease of connection between the connecting cable and the BMS. And / or, the electrical signal acquisition device has multiple pins, which connect to a current-carrying bus. Thus, by providing multiple pins, multiple connection points can be formed between the electrical signal acquisition device and the current-carrying bus, thereby improving the reliability of the data acquired by the electrical signal acquisition device, which in turn helps improve the reliability of the battery.

[0019] Optionally, the cell unit includes cell groups arranged sequentially, each cell group including multiple cells, and each cell having electrodes including a first electrode and a second electrode with opposite polarities. Cells in adjacent cell groups correspond one-to-one. The current-conducting bus includes a first row, multiple second rows, and multiple third rows. The first row and multiple second rows are arranged sequentially, and multiple third rows are arranged between adjacent second rows. The first row is configured to connect the first electrodes of multiple cells in a cell group located at one end of the cell unit. The second row is configured to correspond one-to-one with the cell groups, connecting the second electrodes of multiple cells in the corresponding cell group. The third row is configured to connect the first electrode of a cell in one cell group to the second electrode of a corresponding cell in another cell group. A connector detachably connects the first row of one CCS cell to the second row of another CCS cell. This allows multiple cells in each cell group to be connected in parallel, and multiple cell groups to be connected in series, thereby expanding capacity through parallel cell connection and increasing voltage through series cell group connection, effectively meeting the dual voltage and capacity requirements of electrical devices.

[0020] Optionally, the end of the third row connected to the second electrode is the first end, and the first end is connected to the adjacent second row; in this way, the second row and the third row can be integrated into one unit to reduce the number of parts in the CCS assembly and improve assembly efficiency. And / or, at least one of the first, second, and third rows is a copper busbar. In this way, the properties of copper busbars can be used to improve conductivity and reduce power transmission losses.

[0021] Optionally, the CCS assembly includes multiple CCS columns arranged side-by-side along a first direction, and each CCS column includes multiple CCS cells arranged sequentially along a second direction; wherein, the connectors connecting the CCS cells of adjacent CCS columns have spans extending along the first direction. In this way, the CCS assembly is divided into multiple CCS columns, and each CCS column contains multiple CCS cells, thereby enabling maintenance of each CCS column and each CCS cell within each CCS column. This improves ease of maintenance and reduces the impact on normal cells and normal CCS cells.

[0022] According to a second aspect of this application, a battery is provided, comprising the aforementioned CCS assembly and multiple cell units; each cell unit includes multiple cells; each CCS cell corresponds one-to-one with a cell unit, and the current-carrying busbar of each CCS cell is connected to the multiple cells of the corresponding cell unit. Thus, by dividing the CCS assembly into multiple CCS cells and detachably connecting adjacent CCS cells via connectors, during battery maintenance, the faulty cell and the CCS cell connected to the faulty cell can be directly disassembled, ensuring that the disassembly process does not damage adjacent normal cells or the CCS cells connected to normal cells. This reduces damage to normal cells and the CCS cells connected to normal cells during battery maintenance, improving maintenance efficiency and consequently enhancing the ease of battery maintenance and its economic benefits.

[0023] Optionally, each cell unit also includes a cell bracket, with multiple cell mounting holes at the end of the cell bracket facing the CCS unit, and multiple cells respectively disposed in one of the cell mounting holes. In this way, by mounting the cells through the cell bracket, each cell can be positioned through the cell mounting holes, thereby improving the assembly efficiency of each cell unit.

[0024] Optionally, the cell support includes a support body and a support plate. Cell mounting holes are located on the support body, and the support plate is connected to the end of the support body facing away from the CCS cell. Multiple stepped through holes are provided on the support plate, each corresponding to a cell mounting hole. The larger diameter hole of each stepped through hole is positioned close to and communicates with the corresponding cell mounting hole. The end of the cell facing away from the CCS cell is inserted into the stepped through hole, and the cell's explosion-proof valve faces the smaller diameter hole of the stepped through hole. This design makes the cell support a discrete component, reducing the molding difficulty of the cell support and improving the battery's economic efficiency.

[0025] Optionally, the battery also includes a cover and a housing, with the cover fitting together. The battery cells and CCS assembly are housed within the housing. This design, using the housing and cover, defines the space for installing components such as the battery cells and CCS assembly, thus protecting these components and improving battery reliability.

[0026] Optionally, the battery also includes a tray, which is disposed in the housing and has multiple mounting positions on the side of the tray facing the housing cover, with multiple battery cell units respectively disposed in one mounting position; in this way, each battery cell unit can be positioned and installed by the tray, which helps to improve the positional stability of the battery cell unit in the housing. And / or, the battery also includes a bottom protection plate, which is located on the side of the casing away from the cover; in this way, the bottom protection plate can improve the structural strength of the battery, thereby improving the battery's ability to resist external physical impacts, and can also isolate the battery from harsh environments, protect the battery structure and internal cells, thereby improving the battery's reliability and service life.

[0027] The beneficial effects of the embodiments of this application are as follows: In the CCS assembly of this application embodiment, the CCS assembly is divided into multiple CCS cells, and adjacent CCS cells are detachably connected by connectors. This allows for direct disassembly of the faulty cell and the CCS cell connected to it during battery maintenance, without damaging adjacent healthy cells or the CCS cells connected to them. Thus, battery maintenance reduces damage to healthy cells and the CCS cells connected to them, improving maintenance efficiency and enhancing the ease of maintenance and cost-effectiveness of the battery.

[0028] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0030] Figure 1 This is an exploded view of the battery provided in an exemplary embodiment of this application; Figure 2 This is a schematic diagram of the structure of the CCS component provided in an exemplary embodiment of this application; Figure 3 This is an exploded view of a CCS monomer provided in an exemplary embodiment of this application; Figure 4 This is a schematic diagram of a connector for connecting two adjacent CCS units provided in an exemplary embodiment of this application; Figure 5 This is a schematic diagram of the structure of the first insulating support provided in an exemplary embodiment of this application; Figure 6 This is a schematic diagram of the flow guide and the first insulating support provided in an exemplary embodiment of this application; Figure 7 This is a schematic diagram of the structure of another CCS component provided in an exemplary embodiment of this application; Figure 8 This is a schematic diagram of the connection line and FPC docking provided in an exemplary embodiment of this application; Figure 9 This is a schematic diagram of the interaction between the current guide and the battery cell unit provided in an exemplary embodiment of this application; Figure 10 This is a schematic diagram of the structure of another CCS component provided in an exemplary embodiment of this application; Figure 11 This is a schematic diagram of another connector for connecting two adjacent CCS units provided in an exemplary embodiment of this application; Figure 12 This is a schematic diagram of the structure of the battery cell support provided in an exemplary embodiment of this application.

[0031] Explanation of reference numerals in the attached figures: 1000-battery; 100-CCS components; 101-CCS columns; 10-CCS unit; 11-First insulating bracket; 111-Placement slot; 112-Limiting block; 113-Limiting groove; 114-Second through hole; 115-Mounting slot; 116-Protrusion; 117-Recess; 118-Electrical signal acquisition component; 1181-First connector interface; 1182-Pin; 12-Second insulating support; 13-Insulating layer; 131-Third through hole; 14-Flow guide; 141-First row; 142-Second row; 143-Third row; 1431-First end; 20-Connector; 21-First conductive element; 22-Second conductive element; 23-Locking element; 231-Bolt; 232-Nut; 24-First through hole; 25-Span; 30 - Connecting cable; 31 - Connecting plug; 32 - Second connector interface; 50-Battery cell unit; 51-Battery cell; 511-First electrode; 512-Second electrode; 52-Battery cell assembly; 53-Battery cell bracket; 531-Battery cell mounting hole; 532-Bracket body; 533-Panel; 5331-Stepped through hole; 61-Box cover; 62-Box body; 63-Flange bolts; 64-Pattern; 641-Mounting position; 65-Bottom guard plate. Detailed Implementation

[0032] 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0033] Before introducing a CCS component and battery provided in the embodiments of this application, the relevant technologies of this application will be introduced first.

[0034] In related technologies, batteries consist of a CCS (Cell Contacting System) assembly and multiple battery cells. To fully utilize the internal space of the battery casing, the step of integrating multiple battery cells into a module is eliminated. Instead, all the cells are placed directly inside the casing, and the gaps between the cells are filled with glue to fix them together as a whole. When a battery cell malfunctions (such as leakage, insulation failure, excessive single-cell voltage difference, or low health), causing a significant decrease in battery performance or rendering the battery unusable, scrapping the entire battery due to a single faulty cell leads to excessively high maintenance costs for the electrical equipment. If the battery is repaired and a new cell is used to replace the faulty one, the CCS assembly connecting all the cells must first be removed. However, disassembling the entire CCS assembly not only damages the surface of the welded areas of the cells connected to the CCS assembly, reducing the reliability of the connection between the normal cells and the CCS assembly, but also requires separating components such as the CCS assembly's current-carrying busbar from the insulating support, damaging the insulating support. Replacing the battery cells requires resoldering between the CCS module and the cells, which carries significant operational risks. Furthermore, the repaired CCS module exhibits poor reliability over long-term use. This results in increased battery maintenance difficulty and costs, and also reduces the reliability of the maintained battery.

[0035] Based on this, embodiments of this application provide a CCS module and a battery, which can reduce damage to other normal cells and the CCS module when maintaining the battery, thereby improving maintenance efficiency, ease of maintenance, and economic efficiency.

[0036] The following combination Figures 1 to 12 The present application provides a detailed description of a CCS component 100 and a battery 1000 provided in the embodiments of the present application.

[0037] Please see Figure 1This application provides a battery 1000. The battery 1000 includes a CCS module 100 and a plurality of cell units 50. Each cell unit 50 includes a plurality of cells 51. The CCS module 100 includes a plurality of CCS cells 10. Each CCS cell 10 corresponds one-to-one with a cell unit 50. The current-carrying busbar 14 of each CCS cell 10 is connected to the plurality of cells 51 of the corresponding cell unit 50.

[0038] The multiple battery cell units 50 can be connected in series, in parallel, or in a mixed manner. A mixed connection means that the multiple battery cell units 50 are connected in both series and parallel. Each battery cell unit 50 can contain multiple battery cells 51 connected in series, in parallel, or in a mixed manner.

[0039] The battery cell 51 can be a secondary battery 1000 or a primary battery 1000; the battery cell 51 can also be a lithium-sulfur battery 1000, a sodium-ion battery 1000 or a magnesium-ion battery 1000, but is not limited to these. The battery cell 51 can be cylindrical, flat, cuboid or other shapes.

[0040] For example, cell 51 is a cylindrical cell 51. For instance, cell 51 is a large cylindrical cell 51, specifically a 46 series cylindrical cell 51, such as 4680, 4695, 46110, 46120, 46150, etc.

[0041] Please see Figures 2 to 4 The CCS assembly 100 includes CCS cells 10 and connectors 20. Multiple CCS cells 10 are arranged sequentially. Each CCS cell 10 includes a flow channel 14. The flow channel 14 is configured to be electrically connected to multiple cells 51 of the cell unit 50. The connector 20 is disposed between two adjacent CCS cells 10 to detachably connect the flow channels 14 of two adjacent CCS cells 10.

[0042] The current guide 14 can connect multiple cells 51 of the cell unit 50 in series, connect multiple cells 51 of the cell unit 50 in parallel, or connect a portion of the cells 51 of the cell unit 50 in series with another portion of the cells 51 connected in parallel to form a mixed connection.

[0043] It is understandable that the current busbar 14 has conductive properties, and it can be made of aluminum or copper, etc.

[0044] It is understood that the electrodes of the battery cell 51 include positive and negative electrodes. The casing and cover of the battery cell 51 can also be positively or negatively charged. Therefore, the current-conducting bus 14 is electrically connected to the battery cell 51, which can be either a connection between the current-conducting bus 14 and the terminals of the battery cell 51, or a connection between the current-conducting bus 14 and the casing or cover of the battery cell.

[0045] For example, the connector 20 can be a clamping structure to detachably connect the flow channels 14 of two adjacent CCS units 10 in a clamping manner.

[0046] For example, the connector 20 can also be a flexible hook with its two ends respectively hooked to the flow channels 14 of two adjacent CCS units 10, so that the hook can be elastically deformed to hang on the flow channels 14 or be removed from the flow channels 14.

[0047] For example, the connector 20 may also be a combination of bolts 231 and nuts 232, which are used to lock and fix the guides 14 of two adjacent CCS units 10.

[0048] As another example, the connector 20 can also be a clamp that clamps the flow channels 14 of two adjacent CCS units 10 to achieve a detachable connection.

[0049] In this embodiment, the CCS assembly 100 is divided into multiple CCS cells 10, and adjacent CCS cells 10 are detachably connected by connectors 20. This allows for direct disassembly of the faulty cell 51 and the CCS cell 10 connected to it during battery 1000 maintenance, without damaging adjacent healthy cells 51 or the CCS cells 10 connected to them. Thus, maintenance of the battery 1000 reduces damage to healthy cells 51 and the CCS cells 10 connected to them, improving maintenance efficiency and enhancing the ease of maintenance and cost-effectiveness of the battery 1000. Please see Figure 3 and Figure 4 In some embodiments, the connector 20 includes a first conductive element 21, a second conductive element 22, and a locking element 23. One end of the first conductive element 21 is connected to the current-carrying busbar 14 of one CCS cell 10. One end of the second conductive element 22 is connected to the current-carrying busbar 14 of another CCS cell 10. The other end of the first conductive element 21 overlaps with the other end of the second conductive element 22. The locking element 23 detachably connects the overlapping portions of the first conductive element 21 and the second conductive element 22. Thus, by overlapping the first conductive element 21 and the second conductive element 22, the contact area between the first conductive element 21 and the second conductive element 22 is increased, thereby increasing the current-carrying area between them and improving the current-carrying capacity between two adjacent CCS cells 10.

[0050] For example, the locking element 23 can be a bolt 231, a nut 232, a clip, or a clamp.

[0051] For example, the first conductive element 21 is integrally disposed with the current guide 14, and the second conductive element 22 is integrally disposed with the current guide 14. In this way, the integration of the CCS unit 10 can be improved, thereby reducing the number of parts of the CCS unit 10 and improving the assembly efficiency of the CCS unit 10.

[0052] Please see Figure 3 and Figure 4 In some embodiments, the locking member 23 includes a bolt 231 and a nut 232. Both the first conductive member 21 and the second conductive member 22 are provided with first through holes 24. The end of the bolt 231 passes through the first through holes 24 on both the first conductive member 21 and the second conductive member 22, and is threadedly connected to the nut 232. This allows for a detachable connection between the CCS cells 10 via bolts 231 and nuts 232, thereby improving the ease of maintenance of the battery 1000; furthermore, components removed by releasing the locking between the bolts 231 and nuts 232 can be disassembled and recycled, reducing maintenance costs.

[0053] It can be understood that the head of the bolt 231 abuts against the first conductive element 21, thereby clamping the overlapping part between the first conductive element 21 and the second conductive element 22 through the locking force between the bolt 231 and the nut 232.

[0054] Please see Figures 2 to 4 In some embodiments, each CCS unit 10 further includes a first insulating support 11. The flow guide 14 and the nut 232 are both disposed on the first insulating support 11, with the nut 232 located at one end of the flow guide 14. Thus, by fixing the nut 232 to the first insulating support 11, the position between the flow guide 14 and the nut 232 can be positioned when the flow guide 14 is installed onto the first insulating support 11. This facilitates the smooth threading of the bolt 231 through the first through hole 24 and into the nut 232, thereby improving the assembly efficiency of the CCS unit 10.

[0055] It can be understood that the first insulating support 11 has a sheet-like structure, and the flow guide 14 and nut 232 are installed on one surface of the first insulating support 11 along its thickness direction. Specifically, the flow guide 14 and nut 232 are embedded in one surface of the first insulating support 11 along its thickness direction.

[0056] For example, the nut 232 is disposed on the first insulating bracket 11 and close to the first conductive member 21, and faces the first through hole 24 on the first conductive member 21. Specifically, there is a mating gap between the end of the first conductive member 21 with the first through hole 24 and the first insulating bracket 11, and the end of the second conductive member 22 with the first through hole 24 is inserted into the mating gap. The nut 232 is located on the side of the second conductive member 22 opposite to the first conductive member 21.

[0057] For example, the first insulating support 11 is a plastic support.

[0058] For example, the first insulating bracket 11 is provided with a placement groove 111, and the nut 232 is disposed in the placement groove 111. Specifically, the nut 232 is a hexagonal nut 232, and the placement groove 111 is hexagonal.

[0059] Please see Figure 5 In some embodiments, the first insulating support 11 is provided with two limiting blocks 112. The two limiting blocks 112 and the portion of the first insulating support 11 located between the two limiting blocks 112 together define a limiting groove 113. A nut 232 is disposed at the bottom of the limiting groove 113. The overlapping portions of the first conductive element 21 and the second conductive element 22 are located in the limiting groove 113. In this way, the first conductive element 21 and the second conductive element 22 can be limited by the two side walls of the limiting groove 113, which helps to improve the stability of the first conductive element 21 and the second conductive element 22 relative to the first insulating support 11, thereby improving the reliability of the contact between the first conductive element 21 and the second conductive element 22, and thus improving the overcurrent stability.

[0060] Please see Figure 5 and Figure 6 In some embodiments, each CCS unit 10 further includes a first insulating support 11. In each CCS unit 10, a current guide 14 is disposed on the first insulating support 11. In this way, the first insulating support 11 can both insulate and isolate the portion of the current guide 14 that is not connected to the cell 51 from the cell 51, and position the current guide 14, thereby improving the assembly efficiency of the CCS assembly 100.

[0061] It is understood that a second through hole 114 is provided on the first insulating support 11 at the part opposite to the electrode of the battery cell 51, so that the current guide 14 can contact the electrode of the battery cell 51 through the second through hole 114 and be welded and fixed, so as to realize the current flow between the battery cell 51 and the current guide 14. Figure 5 As shown.

[0062] The first insulating support 11 is also provided with a mounting groove 115, which is connected to the second through hole 114. Part of the guide tube 14 is disposed in the mounting groove 115 and part of it is disposed in the second through hole 114.

[0063] Please see Figure 5 In some embodiments, each first insulating support 11 has a protrusion 116 at one end and a recess 117 at the other end. In two adjacent CCS cells 10, the protrusion 116 of the first insulating support 11 of one CCS cell 10 is inserted into the recess 117 of the first insulating support 11 of the other CCS cell 10 and contacts the inner surface of the recess 117. In this way, the positioning between two adjacent CCS cells 10 can be achieved by the cooperation of the protrusion 116 and the recess 117, which can improve the positional accuracy of the guide bus 14 connecting the two CCS cells 10 of the connector 20 and improve the assembly efficiency of the battery 1000.

[0064] Please see Figure 2 In some embodiments, the recess 117 is a V-groove, and the two sides of the convex portion 116 contact the two groove walls of the recess 117. This simplifies the structure of the recess 117 and the convex portion 116, and allows for multi-directional positioning through the inclined surfaces between the V-groove and the convex portion 116, thereby improving the fitting accuracy between two adjacent CCS units 10.

[0065] Please see Figure 2 and Figure 3 In some embodiments, each CCS cell 10 further includes a second insulating support 12. The second insulating support 12 is located on the side of the current guide 14 opposite to the first insulating support 11, so as to clamp the current guide 14 between the second insulating support 12 and the first insulating support 11. In this way, the side of the current guide 14 opposite to the cell 51 can be insulated and isolated by the second insulating support 12, so as to improve the reliability of overcurrent in the battery 1000.

[0066] For example, the second insulating bracket 12 is a plastic part.

[0067] For example, the second insulating bracket 12 is heat-fused to the first insulating bracket 11, or glued, or snap-fitted.

[0068] Please see Figure 2 and Figure 3 In some embodiments, each CCS unit 10 further includes an insulating layer 13. The insulating layer 13 is disposed between the current guide 14 and the second insulating support 12, and covers the current guide 14. In this way, the insulation protection of the CCS assembly 100 can be improved, thereby improving the reliability of internal overcurrent of the CCS assembly 100.

[0069] For example, the CCS unit 10 also includes an FPC (Flexible Printed Circuit), which is disposed between the insulating layer 13 and the second insulating support 12. The insulating layer 13 has a third through hole 131, through which a portion of the FPC is connected to the flow guide 14. In this way, the second insulating support 12 can provide physical and insulating protection for the flow guide 14, the FPC, etc.

[0070] Please see Figure 7 and Figure 8 In some embodiments, the CCS assembly 100 further includes a connecting line 30. Each CCS unit 10 also includes an electrical signal acquisition device 118. The electrical signal acquisition device 118 is connected to the current guide 14, and the connecting line 30 is connected to the electrical signal acquisition device 118 of each CCS unit 10. In this way, data information such as the voltage of each CCS unit 10 can be acquired through the electrical signal acquisition device 118, and the acquired signals can be sent to the BMS (Battery Management System) through the connecting line 30, thereby monitoring the operating status of the battery 1000 and improving the reliability of the battery 1000.

[0071] It is understandable that the electrical signal acquisition device 118 can acquire voltage, current or temperature information of the battery cell 51.

[0072] The connecting line 30 is connected to the low-voltage acquisition harness, which is connected to the BMS. In this way, the signals acquired by the electrical signal acquisition device 118 can be transmitted to the BMS in sequence through the connecting line 30 and the low-voltage acquisition harness.

[0073] For example, the electrical signal acquisition component 118 is an FPC, i.e., a flexible circuit board. In this way, the ability of the FPC to be bent and fold freely can be used to adapt to the installation space within the CCS assembly 100, thereby improving the ease of assembly and integration of the CCS assembly 100.

[0074] In some embodiments, the connecting cable 30 is plugged into the electrical signal acquisition device 118. This improves the ease of connection between the connecting cable 30 and the electrical signal acquisition device 118 and ensures the reliability of their contact, thus facilitating the smooth transmission of electrical signals.

[0075] Please see Figure 8In some embodiments, the connecting cable 30 has a connecting plug 31. The electrical signal acquisition device 118 has a first connector interface 1181. The connecting plug 31 is inserted into the first connector interface 1181. In this way, the connecting plug 31 of the connecting cable 30 is circumferentially covered by the first connector interface 1181 of the electrical signal acquisition device 118, so as to provide sufficient contact area between the electrical signal acquisition device 118 and the connecting cable 30, so as to ensure the reliability of the contact between them, thereby facilitating the smooth transmission of electrical signals.

[0076] Please see Figure 8 In some embodiments, the connecting cable 30 has a second connector interface 32 configured to connect to the BMS. This improves the ease of operation of connecting the connecting cable 30 to the BMS.

[0077] For example, the connecting line 30 is connected to the BMS via a low-voltage acquisition harness. Specifically, the second connector interface 32 of the connecting line 30 is connected to one plug of the low-voltage acquisition harness, and the other plug of the low-voltage acquisition harness is connected to the BMS, thereby transmitting the signal acquired by the electrical signal acquisition device 118 to the BMS via the low-voltage acquisition harness.

[0078] Please see Figure 8 In some embodiments, the electrical signal acquisition device 118 has multiple pins 1182 connected to the current-carrying bus 14. Thus, by providing multiple pins 1182, multiple connection points can be formed between the electrical signal acquisition device 118 and the current-carrying bus 14, thereby improving the reliability of data acquisition by the electrical signal acquisition device 118 and thus enhancing the reliability of the battery 1000.

[0079] Please see Figure 9In some embodiments, the cell unit 50 includes cell groups 52 arranged sequentially. Each cell group 52 includes a plurality of cells 51. The electrodes of each cell 51 include a first electrode 511 and a second electrode 512 with opposite polarities. The cells 51 of two adjacent cell groups 52 correspond one-to-one. The current-conducting bus 14 includes a first row 141, a plurality of second rows 142, and a plurality of third rows 143. The first row 141 and the plurality of second rows 142 are arranged sequentially. A plurality of third rows 143 are arranged between each adjacent second row 142. The first row 141 is configured to connect the first electrodes 511 of the plurality of cells 51 of a cell group 52 located at one end of the cell unit 50. The second rows 142 are configured to correspond one-to-one with the cell groups 52. The second rows 142 are configured to connect the second electrodes 512 of the plurality of cells 51 of the corresponding cell group 52. The third row 143 is configured to connect the first electrode 511 of a cell 51 in one cell group 52 to the second electrode 512 of a corresponding cell 51 in another cell group 52. The connector 20 detachably connects the first row 141 of one CCS cell 10 to the second row 142 of another CCS cell 10. This allows multiple cells 51 within each cell group 52 to be connected in parallel, and multiple cell groups 52 to be connected in series. This enables capacity expansion through parallel connection of cells 51 and voltage boosting through series connection of cell groups 52, thus meeting the dual voltage and capacity requirements of electrical devices for the battery 1000.

[0080] It is understood that the first electrode 511 can be a terminal of the battery cell 51, a pole of the battery cell 51, or a cover plate and housing of the battery cell 51.

[0081] It is understood that the second electrode 512 can be a terminal of the battery cell 51, a pole of the battery cell 51, or a cover plate and housing of the battery cell 51. The first electrode 511 and the second electrode 512 should be insulated from each other.

[0082] For example, the cell unit 50 includes four cell groups 52, each cell group 52 including three cells 51 arranged in a triangular pattern.

[0083] For example, the first electrode 511 is the negative electrode and the second electrode 512 is the positive electrode.

[0084] For example, the first row 141 is connected to the first conductive element 21, and the second row 142, which is furthest from the first row 141, is connected to the second conductive element 22.

[0085] For example, the first row 141, the second row 142 and the third row 143 are all welded and fixed to the electrodes of the battery cell 51.

[0086] The first insulating support 11 is held between the current guide 14 and the battery cell 51, so that the first insulating support 11 is fixed between the end faces of the current guide 14 and the battery cell 51.

[0087] Please see Figure 9 In some embodiments, the end of the third row 143 connected to the second electrode 512 is a first end 1431, and the first end 1431 is connected to the second row 142 adjacent to this end. In this way, the second row 142 and the third row 143 can be integrated into one unit to reduce the number of components in the CCS assembly 100 and improve assembly efficiency.

[0088] Specifically, the third row 143 and the corresponding second row 142 are integrated into one unit.

[0089] In some embodiments, at least one of the first row 141, the second row 142, and the third row 143 is a copper busbar. In this way, the properties of the copper busbar can be utilized to improve conductivity and reduce power transmission losses.

[0090] Please see Figure 10 and Figure 11 In some embodiments, the CCS assembly 100 includes a plurality of CCS columns 101 arranged side by side along a first direction. Each CCS column 101 includes a plurality of CCS cells 10 arranged sequentially along a second direction. A connector 20 connecting two adjacent CCS cells 10 of the CCS columns 101 has a span 25. The span 25 extends along the first direction. Thus, the CCS assembly 100 is divided into a plurality of CCS columns 101, and each CCS column 101 contains a plurality of CCS cells 10, thereby enabling maintenance of each CCS column 101 and each CCS cell 10 of each CCS column 101, improving ease of maintenance and reducing the impact on normal cells 51 and normal CCS cells 10.

[0091] Please see Figure 12 In some embodiments, each cell unit 50 further includes a cell support 53. The end of the cell support 53 facing the CCS unit 10 is provided with a plurality of cell mounting holes 531. The plurality of cells 51 are respectively disposed in a cell mounting hole 531. Thus, by mounting the cells 51 through the cell support 53, each cell 51 can be positioned through the cell mounting holes 531, thereby improving the assembly efficiency of each cell unit 50.

[0092] The cell support 53 is insulating. Specifically, the cell support 53 is a plastic component.

[0093] Please see Figure 12In some embodiments, the cell support 53 includes a support body 532 and a support plate 533. Cell mounting holes 531 are provided in the support body 532. The support plate 533 is connected to the end of the support body 532 facing away from the CCS cell 10. Multiple stepped through holes 5331 are provided on the support plate 533. Each stepped through hole 5331 corresponds one-to-one with a cell mounting hole 531. The larger diameter hole of each stepped through hole 5331 is positioned close to and communicates with the corresponding cell mounting hole 531. The end of the cell 51 facing away from the CCS cell 10 is inserted into the stepped through hole 5331, and the explosion-proof valve of the cell 51 faces the smaller diameter hole of the stepped through hole 5331. This makes the cell support 53 a discrete component, thereby reducing the molding difficulty of the cell support 53 and improving the economic efficiency of the battery 1000.

[0094] The large-diameter hole of the stepped through hole 5331 has the same diameter as the outer diameter of the battery cell 51, and the small-diameter hole of the stepped through hole 5331 has a smaller diameter than the outer diameter of the battery cell 51, so that the support plate 533 supports and limits the battery cell 51 in the axial direction.

[0095] Please see Figure 1 In some embodiments, the battery 1000 further includes a cover 61 and a housing 62, with the cover 61 covering the housing 62. The cell unit 50 and the CCS assembly 100 are both disposed within the housing 62. In this way, the housing 62 and the cover 61 can define the space for installing components such as the cell unit 50 and the CCS assembly 100, thereby protecting these components and improving the reliability of the battery 1000.

[0096] The cover 61 is connected to the box body 62 by flange bolts 63.

[0097] Please see Figure 1 In some embodiments, the battery 1000 further includes a tray 64 disposed within the housing 62. The tray 64 has multiple mounting positions 641 on the side facing the housing cover 61. Multiple battery cell units 50 are respectively disposed in one mounting position 641. Thus, each battery cell unit 50 can be positioned and installed using the tray 64, thereby improving the positional stability of the battery cell unit 50 within the housing 62.

[0098] A pressure plate is provided on the side of the CCS assembly 100 facing away from the cell 51. The pressure plate is connected to the tray 64 by internal bolts, thereby fixing the CCS assembly 100 and the cell unit 50 on the tray 64.

[0099] Please see Figure 1In some embodiments, the battery 1000 also includes a bottom protective plate 65. The bottom protective plate 65 is disposed on the side of the housing 62 opposite to the cover 61. In this way, the bottom protective plate 65 can improve the structural strength of the battery 1000, thereby improving the battery 1000's ability to resist external physical impacts. The bottom protective plate 65 can also isolate the battery 1000 from harsh environments, protecting the battery pack structure and the internal cells 51, thereby improving the reliability and service life of the battery 1000.

[0100] Please see Figure 1 In some embodiments, the battery 1000 further includes a heat exchange module disposed in the housing 62, which manages the temperature of the battery cell 51. This allows the battery cell 51 to operate at a suitable temperature, thereby improving its reliability and lifespan.

[0101] It is understood that the heat exchange module can be a pipeline structure, with a flowing heat exchange medium inside the pipeline. By adjusting the temperature of the heat exchange medium through a temperature regulation module located outside the battery 1000, the heat exchange medium can heat up or cool down the battery cell 51, thereby meeting the operating temperature requirements of the battery cell 51.

[0102] The heat exchange module can also be a liquid cooling plate, which is placed at one end of the battery cell 51 to manage the temperature of the battery cell 51.

[0103] In summary, the maintenance steps for battery 1000 are as follows: 1. Remove flange bolts 63 and open the box cover 61; 2. Remove the internal bolts and pressure plates that secure the battery cell unit 50 and the CCS assembly 100; 3. Remove the faulty battery cell unit 50 and the second insulating support 12 of the adjacent battery cell unit 50, disconnect the electrical signal acquisition unit 118 from the connecting line 30, and remove the connecting piece 20 connecting the faulty battery cell unit 50 and other battery cell units 50; specifically, loosen the bolt 231 and remove the bolt 231 from the guide bus 14. 4. Remove the faulty battery cell unit 50 and the CCS unit 10 connected to the faulty battery cell unit 50. Disassemble the faulty battery cell unit 50 and the CCS unit 10 connected to the faulty battery cell unit 50 and recycle the reusable parts. 5. Install the new cell unit 50 and the new CCS cell 10, and install bolts 231 to connect the new CCS cell 10 to the corresponding CCS cell 10. After installing bolts 231, install the second insulation bracket 12, and install the pressure plate, inner bolts, box cover 61 and flange bolts 63 in sequence. VI. Conduct tests such as leakage detection, insulation withstand voltage testing, airtightness testing, voltage consistency testing, and electrical charge testing; As can be seen from the above, the battery 1000 provided in this embodiment has multiple CCS cells 10 in the CCS assembly 100, so that it does not need to be forcibly disassembled during maintenance, thereby effectively avoiding accidental contact of adjacent normal batteries 1000 by tools, and reducing the impact on normal batteries 1000.

[0104] Furthermore, in the battery 1000 provided in this embodiment, when replacing the faulty cell 51 within the battery 1000, it is not necessary to first damage the CCS assembly 100 before removing the faulty cell 51, nor is it necessary to weld the new cell 51 to the adjacent battery 1000 within the battery 1000. This makes the battery 1000 easy to maintain and reduces operational risks.

[0105] In the description of this application, 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0106] 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.

[0107] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0108] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A CCS component (100), characterized in that, include: A plurality of CCS cells (10) are arranged sequentially, each of the CCS cells (10) including a flow bar (14) configured to be electrically connected to a plurality of cells (51) of a cell unit (50); and A connector (20) is disposed between two adjacent CCS units (10) to detachably connect the flow channels (14) of the two adjacent CCS units (10).

2. The CCS component (100) according to claim 1, characterized in that, The connector (20) includes a first conductive element (21), a second conductive element (22), and a locking element (23). One end of the first conductive element (21) is connected to the flow channel (14) of one of the CCS units (10), one end of the second conductive element (22) is connected to the flow channel (14) of another CCS unit (10), and the other end of the first conductive element (21) overlaps with the other end of the second conductive element (22). The locking member (23) detachably connects the overlapping parts between the first conductive member (21) and the second conductive member (22).

3. The CCS component (100) according to claim 2, characterized in that, The locking member (23) includes a bolt (231) and a nut (232). The first conductive member (21) and the second conductive member (22) are both provided with a first through hole (24). The end of the shank of the bolt (231) passes through the first through hole (24) on the first conductive member (21) and the first through hole (24) on the second conductive member (22), and is threadedly connected to the nut (232).

4. The CCS component (100) according to claim 3, characterized in that, Each of the CCS units (10) further includes a first insulating support (11), the flow guide (14) and the nut (232) are both disposed on the first insulating support (11), and the nut (232) is located at one end of the flow guide (14).

5. The CCS component (100) according to claim 4, characterized in that, The first insulating bracket (11) is provided with two limiting blocks (112). The two limiting blocks (112) and the part of the first insulating bracket (11) located between the two limiting blocks (112) together define a limiting groove (113). The nut (232) is provided at the bottom of the limiting groove (113). The part where the first conductive element (21) and the second conductive element (22) overlap is located in the limiting groove (113).

6. The CCS component (100) according to claim 1, characterized in that, Each of the CCS units (10) further includes a first insulating support (11), wherein the flow channel (14) is disposed on the first insulating support (11) in each of the CCS units (10).

7. The CCS component (100) according to claim 6, characterized in that, Each of the first insulating supports (11) has a protrusion (116) at one end and a recess (117) at the other end. In two adjacent CCS units (10), the protrusion (116) of the first insulating support (11) of one CCS unit (10) is inserted into the recess (117) of the first insulating support (11) of the other CCS unit (10) and contacts the inner surface of the recess (117).

8. The CCS component (100) according to claim 7, characterized in that, The recess (117) is a V-shaped groove, and the two sides of the protrusion (116) are in contact with the two groove walls of the recess (117).

9. The CCS component (100) according to claim 6, characterized in that, Each of the CCS units (10) further includes a second insulating support (12) located on the side of the flow channel (14) away from the first insulating support (11) to clamp the flow channel (14) between the second insulating support (12) and the first insulating support (11).

10. The CCS component (100) according to claim 9, characterized in that, Each of the CCS units (10) further includes an insulating layer (13) disposed between the flow channel (14) and the second insulating support (12) and covering the flow channel (14).

11. The CCS component (100) according to any one of claims 1 to 10, characterized in that, The CCS assembly (100) further includes a connecting line (30), and each of the CCS units (10) further includes an electrical signal acquisition device (118), which is connected to the flow guide (14), and the connecting line (30) is connected to the electrical signal acquisition device (118) of each of the CCS units (10).

12. The CCS component (100) according to claim 11, characterized in that, The connecting line (30) is plugged into the electrical signal acquisition device (118).

13. The CCS component (100) according to claim 12, characterized in that, The connecting line (30) has a connecting plug (31), and the electrical signal acquisition device (118) has a first connector interface (1181). The connecting plug (31) is inserted into the first connector interface (1181).

14. The CCS component (100) according to claim 11, characterized in that, The connecting line (30) has a second connector interface (32) configured to connect to the BMS; And / or, the electrical signal acquisition device (118) has a plurality of pins (1182) connected to the busbar (14).

15. The CCS component (100) according to any one of claims 1 to 10, characterized in that, The battery cell unit (50) includes battery cell groups (52) arranged sequentially. Each battery cell group (52) includes multiple battery cells (51). The electrodes of each battery cell (51) include a first electrode (511) and a second electrode (512) with opposite polarities. The battery cells (51) of two adjacent battery cell groups (52) correspond one-to-one. The current guide (14) includes a first row (141), a plurality of second rows (142), and a plurality of third rows (143). The first row (141) and the plurality of second rows (142) are arranged sequentially, and a plurality of third rows (143) are arranged between each adjacent pair of second rows (142). The first row (141) is configured to connect the first electrodes (511) of the plurality of cells (51) of a cell group (52) located at one end of the cell unit (50). The second row (142) is configured to correspond one-to-one with the battery cell group (52), and the second row (142) is configured to connect the second electrode (512) of the plurality of battery cells (51) in the corresponding battery cell group (52). The third row (143) is configured to connect the first electrode (511) of the battery cell (51) in one battery cell group (52) to the second electrode (512) of the corresponding battery cell (51) in another battery cell group (52). The connector (20) detachably connects the first row (141) of one CCS unit (10) to the second row (142) of another CCS unit (10).

16. The CCS component (100) according to claim 15, characterized in that, The end of the third row (143) connected to the second electrode (512) is the first end (1431), and the first end (1431) is connected to the second row (142) adjacent to it. And / or, at least one of the first row (141), the second row (142) and the third row (143) is a copper row.

17. The CCS component (100) according to any one of claims 1 to 10, characterized in that, The CCS component (100) includes a plurality of CCS columns (101) arranged side by side along a first direction, and each of the CCS columns (101) includes a plurality of CCS units (10) arranged sequentially along a second direction; The connector (20) of the CCS unit (10) connecting two adjacent CCS columns (101) has a span (25) that extends along the first direction.

18. A battery (1000), characterized in that, include: Multiple battery cell units (50), each of the battery cell units (50) including multiple battery cells (51); as well as In the CCS assembly (100) as described in any one of claims 1 to 17, each CCS cell (10) corresponds to one of the battery cells (50), and the current bus (14) of each CCS cell (10) is connected to the plurality of battery cells (51) of the corresponding battery cell (50).

19. The battery (1000) according to claim 18, characterized in that, Each of the battery cell units (50) further includes a battery cell bracket (53), and the battery cell bracket (53) has a plurality of battery cell mounting holes (531) at one end facing the CCS unit (10), and the plurality of battery cells (51) are respectively disposed in one of the battery cell mounting holes (531).

20. The battery (1000) according to claim 19, characterized in that, The cell support (53) includes a support body (532) and a support plate (533). The cell mounting hole (531) is provided on the support body (532). The support plate (533) is connected to the end of the support body (532) away from the CCS unit (10). A plurality of stepped through holes (5331) are provided on the support plate (533). The stepped through holes (5331) correspond one-to-one with the cell mounting holes (531). The large diameter hole of each stepped through hole (5331) is located close to the corresponding cell mounting hole (531) and communicates with the corresponding cell mounting hole (531). The end of the battery cell (51) facing away from the CCS unit (10) is inserted into the stepped through hole (5331), and the explosion-proof valve of the battery cell (51) is arranged facing the small diameter hole of the stepped through hole (5331).

21. The battery (1000) according to claim 18, characterized in that, The battery (1000) also includes a cover (61) and a housing (62), the cover (61) and the housing (62) are closed, and the cell unit (50) and the CCS assembly (100) are both disposed inside the housing (62).

22. The battery (1000) according to claim 21, characterized in that, The battery (1000) also includes a tray (64), which is disposed in the housing (62), and the tray (64) has a plurality of mounting positions (641) on the side facing the housing cover (61), and the plurality of battery cell units (50) are respectively disposed in one of the mounting positions (641); And / or, the battery (1000) further includes a bottom protective plate (65) disposed on the side of the housing (62) opposite to the housing cover (61).

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