CCS assembly and battery module

Abstract

The utility model relates to the technical field of batteries, in particular to a CCS assembly and a battery module. The CCS assembly comprises a mounting plate, a conducting bar, a sampling wire harness and a heat shrink tube, the mounting plate comprises a first mounting table and a second mounting table, the first mounting table and the second mounting table are adjacently arranged at intervals through a gap penetrating through the thickness of the mounting plate, the conducting bar is arranged on the surface of the first mounting table, and the sampling wire harness is electrically connected with the conducting bar. And the heat shrink tube sleeves the peripheries of the second mounting table and the sampling wire harness so as to wrap and fix the sampling wire harness and the second mounting table. The CCS assembly wraps and fixes the sampling wire harness and the second mounting table through a heat shrink tube, so that the fixing effect of the sampling wire harness and the mounting plate is ensured. Besides, by heating the heat shrink tube, the heat shrink tube can be thermally shrunk to wrap and fix the sampling wire harness and the second mounting table, so that the influence on the flattening of the tab of the battery cell is avoided, the production efficiency of the battery module is improved, and the safety of the product is improved.

Description

Technical Field

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

[0002] In the existing technology, in order to ensure the normal operation of the battery module, a CCS (Cells Contact System) component is usually set in the battery module. The CCS component realizes the high voltage series and parallel connection of each cell in the battery module, and collects the temperature and voltage of the cell to monitor the working status of the cell in real time.

[0003] Mass-produced CCS modules are typically manufactured by laminating various functional layers together, but this method is costly and usually only suitable for mass production. In the prototype stage, existing CCS modules include a mounting plate, busbars, and sampling harnesses. The busbars are mounted on the mounting plate, and the sampling harnesses are electrically connected to them. The sampling harnesses need to be secured to the mounting plate using cable ties or other auxiliary materials to ensure proper wiring. The battery cell's tabs pass through the mounting plate and are welded to the busbars to facilitate voltage acquisition. When welding the battery cell's tabs to the busbars, the tabs need to protrude from the mounting plate, bend and roll flat, and then weld them to the busbars. However, the cable ties and other auxiliary materials used to secure the sampling harnesses protrude significantly from the welded ends, affecting the flattening of the battery cell's tabs, impacting production efficiency, and potentially causing damage to the sampling harness during flattening, thus affecting product safety.

[0004] Therefore, there is an urgent need for a CCS component and battery module suitable for the sample production stage to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a CCS component and battery module to ensure the fixing effect of the sampling harness and the mounting plate, avoid affecting the flatness of the battery cell's tabs, improve production efficiency, and enhance product safety.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A CCS component, comprising:

[0008] The mounting plate includes a first mounting platform and a second mounting platform, which are arranged adjacent to each other by means of a gap penetrating the thickness of the mounting plate.

[0009] A conductive busbar is disposed on the surface of the first mounting platform;

[0010] Sampling harness, the sampling harness being electrically connected to the conductive bus; and

[0011] A heat shrink tubing is fitted around the second mounting platform and the sampling harness to wrap and secure the sampling harness and the second mounting platform.

[0012] Alternatively, the heat shrink tubing may be PET polyester heat shrink tubing.

[0013] Alternatively, the conductive busbar can be attached and fixed to the surface of the first mounting platform.

[0014] As an optional solution, the CCS component further includes:

[0015] A sampling connector is provided, wherein the sampling harness is electrically connected to the conductive busbar through the sampling connector, wherein a first end of the sampling connector is crimped to the sampling harness, and a second end of the sampling connector is connected to the conductive busbar.

[0016] Alternatively, the second end of the sampling connection piece is welded to the conductive busbar;

[0017] Alternatively, the second end of the sampling connector can be bonded to the conductive busbar using conductive adhesive.

[0018] As an optional solution, the mounting plate includes a plurality of first mounting platforms and a plurality of second mounting platforms, the plurality of first mounting platforms are arranged at intervals, the plurality of second mounting platforms are arranged at intervals, each first mounting platform is provided with the conductive bar, and each second mounting platform is fitted with the heat shrink tubing;

[0019] The sampling harness includes a main sampling harness and multiple sampling branch harnesses. Each of the multiple sampling branch harnesses is electrically connected to the main sampling harness, and each sampling branch harness passes through the corresponding heat shrink tubing and is electrically connected to the corresponding conductive busbar.

[0020] As an optional solution, the CCS component further includes:

[0021] A connector, electrically connected to the sampling harness, is used to connect to a plug of the battery management system.

[0022] As an alternative, multiple slits are arranged in parallel to each other to allow the tabs of the battery cells that are welded to the busbar to pass through.

[0023] As an optional option, the mounting plate is an epoxy board.

[0024] A battery module includes multiple battery cells and a CCS assembly as described above, wherein the tabs of the battery cells are welded to the CCS assembly.

[0025] The beneficial effects of this utility model are:

[0026] This invention provides a CCS assembly, which includes a mounting plate, a conductive busbar, a sampling harness, and heat shrink tubing. The mounting plate includes a first mounting platform and a second mounting platform, which are adjacent and spaced apart by a gap penetrating the thickness of the mounting plate. The conductive busbar is disposed on the surface of the first mounting platform, and the sampling harness is electrically connected to the conductive busbar. The heat shrink tubing is sleeved around the second mounting platform and the sampling harness to wrap and fix them. The CCS assembly provided by this invention uses heat shrink tubing to wrap and fix the sampling harness and the second mounting platform, ensuring effective fixation between the sampling harness and the mounting plate. Furthermore, by heating the heat shrink tubing, it shrinks to wrap and fix the sampling harness and the second mounting platform, preventing the heat shrink tubing from protruding significantly from the mounting plate. This avoids affecting the flatness of the battery cell's tabs, improves production efficiency, and enhances product safety.

[0027] This utility model also provides a battery module. By applying the above-mentioned CCS component, the battery module ensures the fixing effect of the sampling harness and the mounting plate, avoids affecting the flatness of the battery cell's tabs, improves the production efficiency of the battery module, and also enhances the safety of the product. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the CCS component provided in this embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the mounting plate provided in this embodiment of the utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the heat shrink tubing provided in this embodiment of the utility model;

[0031] Figure 4 yes Figure 1 Enlarged view of the structure at point A in the middle;

[0032] Figure 5 This is a schematic diagram of the sampling connection piece provided in an embodiment of the present invention.

[0033] In the picture:

[0034] 1. Mounting plate; 11. First mounting platform; 12. Second mounting platform; 13. Gap; 2. Conductive busbar; 3. Sampling harness; 31. Main sampling harness; 32. Branch sampling harness; 4. Heat shrink tubing; 5. Sampling connecting piece; 51. First connecting part; 52. Second connecting part; 6. Connector. Detailed Implementation

[0035] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] like Figure 1 As shown, this embodiment provides a CCS assembly, which includes a mounting plate 1, a conductive busbar 2, and a sampling harness 3. The conductive busbar 2 is disposed on the mounting plate 1, and the sampling harness 3 is electrically connected to the conductive busbar 2. The electrode tabs of the battery cell pass through the mounting plate 1 and are soldered to the conductive busbar 2, thereby realizing the acquisition and output of the battery cell voltage through the sampling harness 3. Optionally, in this embodiment, the conductive busbar 2 can be a conductive copper busbar.

[0040] Optionally, the CCS component provided in this embodiment also includes a thermistor (not shown in the figure). The thermistor is electrically connected to the sampling harness 3. The thermistor is installed on the outer surface of the corresponding cell through the gap 13 on the mounting plate 1. The thermistor obtains the temperature of the cell in the battery module by detecting the temperature of the cell surface, thereby realizing the acquisition and output of the cell temperature through the sampling harness 3.

[0041] In related technologies, the sampling harness 3 in the CCS assembly needs to be fixed to the mounting plate 1 using auxiliary materials such as cable ties to secure the sampling harness 3. Furthermore, when the battery cell's tabs are welded to the busbar 2, the tabs need to extend beyond the mounting plate 1, and then be bent and rolled flat before being welded to the busbar 2. However, the cable ties and other auxiliary materials used to fix the sampling harness 3 protrude significantly from the welded end face of the tabs to the busbar 2, affecting the flattening of the battery cell's tabs, impacting production efficiency, and potentially causing damage to the sampling harness 3 during tab flattening, thus affecting product safety.

[0042] To solve the above problems, such as Figures 1-3 As shown, the CCS assembly provided in this embodiment also includes heat shrink tubing 4. The mounting plate 1 includes a first mounting platform 11 and a second mounting platform 12. The first mounting platform 11 and the second mounting platform 12 are arranged adjacent to each other through a gap 13 that penetrates the thickness of the mounting plate 1. The conductive busbar 2 is disposed on the surface of the first mounting platform 11. The heat shrink tubing 4 is sleeved around the second mounting platform 12 and the sampling harness 3 to wrap and fix the sampling harness 3 and the second mounting platform 12. By wrapping and fixing the sampling harness 3 and the second mounting platform 12 with heat shrink tubing 4, the fixing effect between the sampling harness 3 and the mounting plate 1 is ensured. In addition, by heating the heat shrink tubing 4, the heat shrink tubing 4 can shrink and wrap and fix the sampling harness 3 and the second mounting platform 12, so that the heat shrink tubing 4 does not protrude significantly from the mounting plate 1, thereby avoiding the impact on the flatness of the battery cell's tabs, improving production efficiency, and also improving product safety.

[0043] Optionally, in this embodiment, the heat shrink tubing 4 is PET polyester heat shrink tubing. PET polyester heat shrink tubing can shrink under high temperatures to wrap and fix the sampling harness 3 and the second mounting platform 12, thereby securing the sampling harness 3 to the second mounting platform 12. Furthermore, PET polyester heat shrink tubing has the advantages of high temperature resistance and good electrical insulation.

[0044] In this embodiment, as Figure 1 and Figure 2 As shown, multiple slits 13 are arranged in parallel to each other to allow the tabs of the battery cells that are welded to the conductive busbar 2 to pass through.

[0045] Optionally, in this embodiment, the mounting plate 1 can be formed into a first mounting platform 11 and a second mounting platform 12 by a cutting process. Optionally, in this embodiment, there is a gap 13 between the second mounting platform 12 and the first mounting platform 11, and the end of the second mounting platform 12 is in a suspended state, thereby facilitating the fitting of the heat shrink tubing 4 onto the outer periphery of the second mounting platform 12.

[0046] Optionally, in this embodiment, the mounting plate 1 is an epoxy board. Epoxy boards have the advantages of low cost, stable chemical properties, and good electrical insulation. In addition, epoxy boards have high mechanical strength, which allows the mounting plate 1 to be designed to be thinner and lighter, reducing the overall size and weight of the CCS assembly and facilitating the handling of the CCS assembly.

[0047] Optionally, in this embodiment, the conductive busbar 2 is adhered and fixed to the first mounting platform 11. By adhering and fixing the conductive busbar 2 to the surface of the first mounting platform 11, the stability and reliability of the conductive busbar 2's fixation on the first mounting platform 11 are ensured. Optionally, in this embodiment, the conductive busbar 2 can be adhered and fixed to the surface of the first mounting platform 11 using AD adhesive.

[0048] In this embodiment, as Figure 1 and Figure 2 As shown, the mounting plate 1 includes multiple first mounting platforms 11 and multiple second mounting platforms 12. The first mounting platforms 11 are arranged at intervals, and the multiple second mounting platforms 12 are arranged at intervals. Each first mounting platform 11 is provided with a conductive bar 2, and each second mounting platform 12 is fitted with a heat shrink tubing 4. The sampling harness 3 includes a main sampling harness 31 and multiple sampling branch harnesses 32. The multiple sampling branch harnesses 32 are all electrically connected to the main sampling harness 31, and each sampling branch harness 32 passes through a corresponding heat shrink tubing 4 and is electrically connected to a corresponding conductive bar 2. It should be noted that each conductive bar 2 is soldered to the corresponding electrode tab of the battery cell. The above arrangement ensures that the CCS module can collect and output the voltage of multiple battery cells. In addition, it should be noted that the multiple first mounting platforms 11 and multiple second mounting platforms 12 on the mounting plate 1 are all formed by a cutting process.

[0049] In this embodiment, as Figure 1 As shown, the CCS component also includes a connector 6, which is electrically connected to the sampling main harness 31 of the sampling harness 3. The connector 6 is used to plug into the battery management system so as to transmit the corresponding output signal to the battery management system.

[0050] In this embodiment, as Figure 1 and Figure 4As shown, the CCS assembly also includes a sampling connector 5. The sampling harness 3 is electrically connected to the conductive bus 2 via the sampling connector 5. The first end of the sampling connector 5 is crimped to the sampling harness 3, and the second end of the sampling connector 5 is connected to the conductive bus 2. Optionally, in this embodiment, the sampling connector 5 can be a sampling nickel sheet, which has the advantages of corrosion resistance, wear resistance, high temperature resistance, and good conductivity.

[0051] Optionally, in this embodiment, the second end of the sampling connection piece 5 is welded to the conductive busbar 2. In other embodiments, the second end of the sampling connection piece 5 can also be bonded to the conductive busbar 2 with conductive adhesive.

[0052] Specifically, such as Figure 4 and Figure 5 As shown, the sampling connector 5 includes a first connecting part 51 and a second connecting part 52 connected to each other. The first connecting part 51 is connected to the conductive bus 2, and the second connecting part 52 is bent to make the second connecting part 52 crimped to the sampling wire harness 3, thus ensuring the stability and reliability of the connection between the second connecting part 52 and the sampling wire harness 3.

[0053] To facilitate understanding of the CCS component disclosed in this embodiment, it is now combined with... Figures 1-5 The specific methods for creating CCS components are explained below:

[0054] First, the required first mounting platform 11, second mounting platform 12, gap 13, and mounting opening are cut out on the mounting plate 1. Then, the conductive busbar 2 is glued and fixed to the first mounting platform 11, and the heat shrink tubing 4 is fitted onto the second mounting platform 12. Next, each sampling branch wire harness 32 passes through the corresponding heat shrink tubing 4, and the sampling branch wire harness 32 is connected to the corresponding conductive busbar 2 through the sampling connecting piece 5. Finally, the heat shrink tubing 4 is heated to cause it to shrink, so that the heat shrink tubing 4 wraps and fixes the corresponding sampling branch wire harness 32 and the corresponding second mounting platform 12 together.

[0055] This embodiment also provides a battery module, which includes multiple battery cells and the aforementioned CCS assembly. The tabs of the battery cells are welded to the corresponding conductive busbars 2 in the CCS assembly. By applying the aforementioned CCS assembly, the battery module provided in this embodiment ensures the fixation of the sampling harness 3 to the mounting plate 1, avoids affecting the flattening of the battery cell tabs, improves the production efficiency of the battery module, and enhances product safety.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A CCS component, characterized in that, include: Mounting plate (1), the mounting plate (1) includes a first mounting platform (11) and a second mounting platform (12), the first mounting platform (11) and the second mounting platform (12) are arranged adjacent to each other through a gap (13) that penetrates the thickness of the mounting plate (1); Conductive bus (2), the conductive bus (2) is disposed on the surface of the first mounting platform (11); A sampling harness (3) electrically connected to the conductive bus (2); and Heat shrink tubing (4) is sleeved around the second mounting platform (12) and the sampling harness (3) to wrap and fix the sampling harness (3) and the second mounting platform (12).

2. The CCS component according to claim 1, characterized in that, The heat shrink tubing (4) is a PET polyester heat shrink tubing.

3. The CCS component according to claim 1, characterized in that, The conductive busbar (2) is attached and fixed to the surface of the first mounting platform (11).

4. The CCS component according to claim 1, characterized in that, The CCS component also includes: The sampling connector (5) is used to electrically connect the sampling harness (3) to the conductive bus (2). The first end of the sampling connector (5) is crimped to the sampling harness (3), and the second end of the sampling connector (5) is connected to the conductive bus (2).

5. The CCS component according to claim 4, characterized in that, The second end of the sampling connection piece (5) is welded to the conductive bus (2); Alternatively, the second end of the sampling connection piece (5) can be bonded to the conductive busbar (2) with conductive adhesive.

6. The CCS component according to any one of claims 1 to 5, characterized in that, The mounting plate (1) includes a plurality of first mounting platforms (11) and a plurality of second mounting platforms (12). The plurality of first mounting platforms (11) are arranged at intervals, and the plurality of second mounting platforms (12) are arranged at intervals. Each first mounting platform (11) is provided with the conductive bar (2), and each second mounting platform (12) is fitted with the heat shrink tubing (4). The sampling harness (3) includes a main sampling harness (31) and multiple sampling branch harnesses (32). The multiple sampling branch harnesses (32) are electrically connected to the main sampling harness (31), and each sampling branch harness (32) passes through the corresponding heat shrink tubing (4) and is electrically connected to the corresponding conductive busbar (2).

7. The CCS component according to any one of claims 1 to 5, characterized in that, The CCS component also includes: A connector (6) is electrically connected to the sampling harness (3) and is used to plug into the battery management system.

8. The CCS component according to any one of claims 1 to 5, characterized in that, Multiple slits (13) are arranged in parallel to each other to allow the tabs of the battery cells that are welded to the conductive bus (2) to pass through.

9. The CCS component according to any one of claims 1 to 5, characterized in that, The mounting plate (1) is an epoxy board.

10. A battery module, characterized in that, It includes multiple battery cells and a CCS assembly as described in any one of claims 1 to 9, wherein the tabs of the battery cells are welded to the CCS assembly.

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