CCS assembly, battery module and vehicle

Abstract

The invention discloses a CCS assembly, a battery module and a vehicle, the CCS assembly comprises a frame body, a busbar, an FPC, a temperature sensor and a reinforcing plate, and the busbar is mounted on the frame body; the FPC is installed on the frame body and electrically connected with the busbar, the FPC is provided with a connecting part, and a through hole is formed in the position, corresponding to the connecting part, of the frame body; the temperature sensor is connected with the connecting part; the reinforcing plate comprises a fixing part and a mounting part, the mounting part is connected with the connecting part, and the fixing part is fixedly connected with the busbar. According to the CCS assembly disclosed by the invention, the fixing part of the reinforcing plate is fixedly connected with the busbar, and the mounting part of the reinforcing plate is connected with the connecting part, so that the downward pressure of the busbar is directly transmitted to the reinforcing plate, the heat conduction piece arranged between the CCS assembly and the battery cell is compressed, and the heat conduction effect between the temperature sensor and the battery cell is improved; and the temperature detection precision of the battery cell is improved.

Description

Technical Field

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

[0002] In related technologies, the integrated busbar (Cells Contact System, CCS) assembly includes a frame, a reinforcing plate, a busbar, and a temperature sensor. The busbar is connected to the frame, and a portion of the busbar is pressed against the reinforcing plate. The reinforcing plate is located in the reinforcing area of ​​the frame and has a first through hole. The reinforcing plate has a second through hole, and the first and second through holes form a temperature detection channel, through which the temperature sensor passes. This reinforcing plate strengthens the frame, preventing excessive deformation of the frame when the battery cells expand. In actual use, a heat-conducting component is usually placed between the temperature sensor and the battery cell to conduct the temperature of the battery cell to the temperature sensor. This CCS assembly cannot press the heat-conducting component tightly, resulting in poor heat conduction between the temperature sensor and the battery cell, thus affecting the accuracy of the battery cell temperature detection. Summary of the Invention

[0003] This invention proposes a CCS component to improve the assembly efficiency of CCS components and reduce the cost of CCS components.

[0004] The CCS component of the present invention includes a frame, a busbar, an FPC, a temperature sensor, and a reinforcing plate. The busbar is mounted on the frame; the FPC is mounted on the frame and electrically connected to the busbar, and the FPC has a connecting portion. The frame has a through hole at the corresponding position of the connecting portion; the temperature sensor is connected to the connecting portion; the reinforcing plate includes a fixing portion and a mounting portion, the mounting portion is connected to the connecting portion, and the fixing portion is fixedly connected to the busbar.

[0005] Optionally, the mounting part is provided with a mounting groove at the corresponding position of the connecting part, and the temperature sensor is disposed in the mounting groove.

[0006] Optionally, the mounting groove extends through the reinforcing plate along the height direction of the frame, and the connecting part is located on the side of the mounting part facing the frame, and the groove opening of the mounting groove facing the frame is blocked.

[0007] Optionally, the FPC includes a board body and a connecting piece, the connecting piece being overhanging and connected to the board body, and the connecting portion being disposed on the connecting piece.

[0008] Optionally, at least a portion of the connecting piece is recessed in the direction toward the frame to form the connecting portion; the mounting portion is recessed relative to the fixing portion in the direction toward the frame.

[0009] Optionally, the frame is provided with a hot riveting post, the busbar is provided with a connecting hole, the fixing part is provided with a fixing hole, the hot riveting post passes through the connecting hole and the fixing hole, and is hot riveted to the fixing part.

[0010] Optionally, the busbar has a recessed groove along the direction toward the frame, and the connection hole is located in the groove.

[0011] Optionally, one of the frame and the busbar is provided with a foolproof protrusion, and the other of the frame and the busbar is provided with a foolproof opening, and the foolproof protrusion is inserted into the foolproof opening.

[0012] Optionally, the frame is provided with the anti-fooling protrusion, and the busbar is provided with the anti-fooling opening; the number of the connection holes is multiple, and at least two of the connection holes in the same busbar are at different distances from the same anti-fooling opening.

[0013] Optionally, at least one of the busbars is a first series busbar, the fixing part is spaced apart from the first series busbar, and the height of the anti-fooling protrusion inserted in the first series busbar is lower than the height of the hot riveting post inserted in the first series busbar; and / or, at least one of the busbars is a second series busbar, the fixing part is fixedly connected to the second series busbar, the height of the anti-fooling protrusion inserted in the second series busbar is equal to the height of the hot riveting post inserted in the second series busbar, and the anti-fooling protrusion is inserted into the fixing hole.

[0014] The present invention also proposes a battery module.

[0015] The battery module of the present invention includes multiple battery cells and a CCS assembly, wherein the CCS assembly is any of the CCS assemblies described above, and the busbar is electrically connected to the terminals of the battery cells.

[0016] The present invention also proposes a vehicle.

[0017] The vehicle of the present invention includes the battery module described in any of the preceding claims.

[0018] The CCS assembly of this invention connects the busbar and FPC to the frame by mounting them on the frame. The temperature sensor is connected to the FPC by connecting it to the connection part of the frame. Through holes are provided at corresponding positions on the connection part of the frame, allowing heat from the battery cell to be conducted to the temperature sensor for temperature detection. By fixing the reinforcing plate to the busbar and connecting the mounting part of the reinforcing plate to the connection part, the downward pressure of the busbar is directly transferred to the reinforcing plate, thereby pressing the heat-conducting component between the CCS assembly and the battery cell, improving the heat conduction effect between the temperature sensor and the battery cell, and thus improving the temperature detection accuracy of the battery cell. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection between the busbar and the frame in a CCS component according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the bus structure in a CCS component according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the assembly structure of the frame and FPC in a CCS component according to an embodiment of the present invention.

[0022] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0023] Figure 5 This is a schematic diagram of the connection between the busbar, reinforcing plate and frame in a CCS component according to an embodiment of the present invention.

[0024] Figure 6 This is a partial cross-sectional view of a CCS component in use according to an embodiment of the present invention.

[0025] Figure 7 yes Figure 6 A schematic diagram of the structure of the central reinforcing plate.

[0026] Figure 8 This is a schematic diagram of the connection between the FPC and the reinforcing plate in a CCS component according to an embodiment of the present invention.

[0027] Figure 9 yes Figure 8 Enlarged view of point B in the middle.

[0028] Figure 10 This is a schematic diagram of the battery pack structure in a battery module according to an embodiment of the present invention.

[0029] Figure 11 yes Figure 10 A magnified view of point C in the middle.

[0030] Figure label:

[0031] 10. CCS component;

[0032] 1. Frame; 11. Anti-mistake protrusion; 12. Hot riveting column; 13. Series slot; 14. Output slot; 15. Detection slot; 16. Through hole;

[0033] 2. Busbar; 21. Foolproof notch; 22. Connecting hole; 23. Groove; 231. Fixing surface; 24. First series busbar; 25. Second series busbar; 26. Cell fixing part;

[0034] 3. Reinforcing plate; 31. Fixing part; 311. Fixing hole; 312. Mounting surface; 32. Mounting part; 321. Mounting groove;

[0035] 4. Temperature sensor;

[0036] 5. FPC; 51. Board body; 52. Connecting piece; 521. Connecting part;

[0037] 20. Battery pack; 201. Battery cell; 2001. Terminal post; 2002. Cell cover;

[0038] 30. Heat-conducting components. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] like Figures 1 to 6 As shown, the CCS assembly 10 of this embodiment includes a frame 1, a busbar 2, an FPC 5 (Flexible Printed Circuit), a temperature sensor 4, and a reinforcing plate 3. The busbar 2 is mounted on the frame 1, and the FPC 5 is mounted on the frame 1 and electrically connected to the busbar 2. The FPC 5 has a connecting part 521, and the frame 1 has a through hole at the corresponding position of the connecting part 521. The temperature sensor 4 is connected to the connecting part 521. The reinforcing plate 3 includes a fixing part 31 and a mounting part 32. The mounting part 32 is connected to the connecting part 521, and the fixing part 31 is fixedly connected to the busbar 2.

[0041] In this embodiment of the invention, the CCS assembly 10 connects the busbar 2 and FPC5 to the frame 1 by mounting them on the frame 1. The temperature sensor 4 is connected to the FPC5 via the connection part 521. A through hole 16 is provided at a corresponding position on the connection part 521 of the frame 1, allowing heat from the battery cell 201 to be conducted to the temperature sensor 4 for temperature detection. By fixing the fixing part 31 of the reinforcing plate 3 to the busbar 2 and connecting the mounting part 32 of the reinforcing plate 3 to the connection part 521, the downward pressure of the busbar 2 is directly transmitted to the reinforcing plate 3, thereby pressing the heat-conducting component between the CCS assembly 10 and the battery cell 201, improving the heat conduction effect between the temperature sensor 4 and the battery cell 201, and thus improving the temperature detection accuracy of the battery cell 201. The heat-conducting component 30 can be thermally conductive adhesive or a thermally conductive pad.

[0042] Furthermore, the CCS assembly in the related technology includes a sensor bracket connected to a busbar. A temperature sensor is mounted on the sensor bracket. After the busbar is electrically connected to the battery cell, the busbar applies a force towards the battery cell to the sensor bracket, causing the sensor bracket to press the heat-conducting component tightly, ensuring the heat conduction effect between the temperature sensor and the battery cell. In the CCS assembly 10 of this embodiment, the heat-conducting component 30 is pressed tightly by the reinforcing plate 3, which eliminates the need for the aforementioned sensor bracket. This helps to reduce the types and number of CCS assemblies 10 and achieve weight reduction and cost reduction of the CCS assembly.

[0043] In some embodiments, such as Figures 5 to 7 As shown, the mounting part 32 has a mounting groove 321 at the corresponding position of the connecting part 521, and the temperature sensor 4 is disposed in the mounting groove 321. The temperature sensor 4 is used to collect the temperature of the battery cell 201.

[0044] By setting a mounting groove 321 in the mounting part 32 and placing the temperature sensor 4 in the mounting groove 321, the temperature sensor 4 can be protected, preventing damage to the temperature sensor 4 and ensuring the fixed reliability of the temperature sensor 4, thereby further improving the temperature detection accuracy of the battery cell 201.

[0045] Of course, in some other embodiments, the mounting part may not have a mounting slot, and the temperature sensor may be directly mounted on the surface of the mounting part.

[0046] Optionally, the mounting groove 321 extends through the reinforcing plate 3 along the height direction of the frame 1, and the connecting part 521 is located on the side of the mounting part 32 facing the frame 1, and the groove of the mounting groove 321 facing the frame 1 is blocked.

[0047] By setting the mounting groove 321 to pass through the reinforcing plate 3 along the height direction of the frame 1, and sealing the groove opening of the mounting groove 321 facing the frame 1 with the connecting part 521, the distance between the temperature sensor 4 and the heat-conducting component is closer, the heat conduction distance between the temperature sensor 4 and the battery cell 201 is shortened, and the temperature detection accuracy of the battery cell 201 is further improved.

[0048] Of course, in other embodiments, the mounting slot may have a bottom and the opening of the mounting slot may be positioned away from the frame.

[0049] Optionally, such as Figure 5 , Figure 6 and Figure 9 As shown, the FPC5 includes a board body 51 and a connecting piece 52. The connecting piece 52 is suspended and connected to the board body 51, and the connecting part 521 is provided on the connecting piece 52.

[0050] The connecting piece 52 is prone to deformation and is relatively thin. By connecting the reinforcing plate 3 to the connecting piece 52, on the one hand, the connecting piece 52 can be easily deformed and pressed against the heat-conducting component under the pressure of the reinforcing plate 3. On the other hand, the heat conduction distance between the temperature sensor 4 and the battery cell 201 can be shortened, thereby further improving the temperature detection accuracy of the battery cell 201.

[0051] In other embodiments, the FPC5 may also consist of only the board body, with a portion of the board body forming a connecting portion.

[0052] Optionally, such as Figure 5 , Figure 7 and Figure 9 As shown, at least a portion of the connecting piece 52 is recessed in the direction toward the frame 1 to form a connecting portion 521. The mounting portion 32 is recessed relative to the fixing portion 31 in the direction toward the frame 1.

[0053] At least a portion of the connecting piece 52 is recessed in the direction toward the frame 1, and the mounting part 32 is recessed relative to the fixing part 31 in the direction toward the frame 1, so that the distance between the temperature sensor 4 and the battery cell 201 is closer, shortening the heat conduction distance between the temperature sensor 4 and the battery cell 201, and further improving the temperature detection accuracy of the battery cell 201.

[0054] Of course, in other embodiments, the connecting piece 52 can be at the same height as a whole, the fixing part 31 and the mounting part 32 can be at the same height, or the mounting part 32 can be provided to protrude from the fixing part 31 in the direction away from the frame 1.

[0055] To make the technical solution of the present invention easier to understand, the technical solution of the present invention will be further described below with the height direction of the frame 1 consistent with the vertical direction. Wherein, the vertical direction is as follows... Figures 1 to 11 As shown.

[0056] For example, such as Figure 5 As shown, a portion of the connecting piece 52 is recessed downward to form a connecting part 521, the frame 1 is provided on the lower side of the fixing part 31, and the fixing part 31 is provided to protrude from the mounting part 32 in an upward direction.

[0057] Optionally, the reinforcing plate 3 is made of insulating composite material, which can be injection molded or processed.

[0058] In some embodiments, such as Figures 1 to 5 , Figure 7 As shown, the frame 1 is provided with a hot riveting post 12, the busbar 2 is provided with a connecting hole 22, and the fixing part 31 is provided with a fixing hole 311. The hot riveting post 12 passes through the connecting hole 22 and the fixing hole 311 and is hot riveted to the fixing part 31.

[0059] The connecting hole 22 and the hot riveting post 12 are used to connect the busbar 2 to the frame 1, which is the original structure of the busbar 2 and the frame 1. The hot riveting post 12 is hot riveted to the busbar 2; the hot riveting post 12 and the connecting hole 22 are clearance fitted.

[0060] By providing a connection hole 22 in the busbar 2 and a fixing hole 311 in the fixing part 31, and inserting a hot riveting post 12 into the fixing hole 311, the connection between the busbar 2 and the frame 1, as well as between the reinforcing plate 3 and the busbar, is simultaneously achieved. This allows the hot riveting post 12 to simultaneously connect the busbar 2 and the frame 1, and the reinforcing plate 3 and the busbar 2. Consequently, the structure of the frame 1 and the busbar 2 can be simplified, further reducing the cost of the CCS assembly 10.

[0061] Optionally, such as Figure 2 As shown, the busbar 2 is provided with a groove 23 recessed in the direction toward the frame 1, and the connecting hole 22 is provided in the groove 23.

[0062] By providing a groove 23 in the busbar 2, the distance between the surface of the groove 23 facing away from the frame 1 and the frame 1 is small, resulting in a shallower connecting hole 22. This allows the anti-misalignment protrusion 11 and the hot-riveting post 12 to be inserted into the connecting hole 22 even with relatively low heights. This reduces the height of the anti-misalignment protrusion 11 and the hot-riveting post 12, which on one hand reduces the size of the CCS assembly 10 in the thickness direction of the frame 1, thus reducing the space occupied by the CCS assembly 10 in that direction; on the other hand, it reduces the manufacturing difficulty of the anti-misalignment protrusion 11 and the hot-riveting post 12 during the integral vacuum forming of the frame 1, thereby reducing the cost of the CCS assembly 10. Furthermore, the smaller height of the anti-misalignment protrusion 11 and the hot-riveting post 12 also saves on the material cost of the frame 1, further reducing the cost of the CCS assembly 10.

[0063] Of course, in some other embodiments, the busbar 2 may not have the groove 23. In this case, the depth of the connecting hole 22 is the same as the maximum thickness of the busbar 2. Optionally, such as Figure 2 As shown, the surface of the groove 23 facing away from the frame 1 forms a fixing surface 231, as... Figure 7 As shown, the fixing part 31 has a mounting surface 312 on its surface facing the frame 1, and the mounting surface 312 is attached to and connected with the fixing surface 231. The mounting surface 312 and the fixing surface 231 can be bonded together.

[0064] For example, such as Figure 2 As shown, the upper surface of the groove 23 forms a fixing surface 231, as... Figure 7 As shown, the lower surface of the fixing part 31 forms a mounting surface 312, and the lower surface of the fixing part 31 fits against the upper surface of the groove 23.

[0065] By fitting the mounting surface 312 of the fixing part 31 with the fixing surface 231 of the groove 23, not only can the connection area between the reinforcing plate 3 and the busbar 2 be increased, and the connection reliability between the reinforcing plate 3 and the busbar 2 be improved, but the space occupied by the fixing part 31 and the busbar 2 in the height direction of the frame 1 can also be reduced, thereby further reducing the space occupied by the CCS assembly 10 in the height direction of the frame 1.

[0066] Of course, in some other embodiments, the busbar 2 may not have the groove 23 provided, and the fixing part 31 may directly fit against the surface of the busbar 2 facing away from the frame 1.

[0067] Busbar 2 is also equipped with a voltage acquisition surface, which is electrically connected to FPC5 to acquire the voltage of battery cell 201. The voltage acquisition surface and FPC5 can be laser welded or ultrasonic welded.

[0068] In some embodiments, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, one of the frame 1 and the busbar 2 is provided with a foolproof protrusion 11, and the other of the frame 1 and the busbar 2 is provided with a foolproof opening 21, with the foolproof protrusion 11 inserted into the foolproof opening 21.

[0069] A foolproof protrusion 11 is provided in one of the bracket 1 and the busbar 2, and a foolproof opening 21 is provided in the other. When connecting the busbar 2 to the bracket 1, the foolproof protrusion 11 is inserted into the foolproof opening 21 to prevent the busbar 2 from being installed backwards. This improves the assembly efficiency of the CCS assembly 10 and reduces its cost.

[0070] Of course, in other embodiments, neither the frame nor the busbar may be provided with foolproof protrusions or foolproof openings.

[0071] Optionally, such as Figures 1 to 4 As shown, the frame 1 is provided with a foolproof protrusion 11, and the busbar 2 is provided with a foolproof opening 21. There are multiple hot-riveting posts 12, connecting holes 22, and fixing holes 311. The distances from two connecting holes 22 in the same busbar 2 to the same foolproof opening 21 are different. At least two connecting holes 22 in the same busbar 2 are at different distances to the same foolproof opening 21.

[0072] For example, such as Figure 2As shown, the busbar 2 has two connection holes 22 and one foolproof opening 21, with different distances from the two connection holes 22 to the foolproof opening 21. This ensures that when the busbar 2 is correctly installed on the frame 1, the two hot-riveting posts 12 and the foolproof protrusion 11 of the frame 1 are inserted into the two connection holes 22 and the foolproof opening 21 of the busbar 2, respectively. However, when the busbar 2 is installed backwards and the two hot-riveting posts 12 of the frame 1 are inserted into the two connection holes 22 of the busbar 2, the foolproof protrusion 11 of the frame 1 cannot be inserted into the foolproof opening 21 of the busbar 2, causing the busbar 2 to fail to fit snugly against the frame 1, and thus preventing the busbar 2 from being connected to the frame 1. This prevents the problem of the busbar 2 being installed backwards.

[0073] By setting the distances from at least two connection holes 22 to the same foolproof opening 21 to be different, the busbar 2 is foolproof, that is, the problem of busbar 2 being installed backwards is avoided. This makes full use of the original structure of busbar 2 and frame 1, and the busbar 2 is foolproof. This is beneficial to simplify the structure of busbar 2 and frame 1 and reduce the cost of CCS component 10.

[0074] In other embodiments, the number of anti-foolproof protrusions 11 and anti-foolproof openings 21 may be multiple, and the number of hot riveting posts 12 and connecting holes 22 may be one or more, with at least two anti-foolproof openings 21 in the same busbar 2 being at different distances from the same connecting hole 22. Alternatively, the number of anti-foolproof openings 21 and anti-foolproof protrusions 11 may both be at least three, with the distance between two anti-foolproof openings 21 and the third anti-foolproof opening 21 being different.

[0075] Optionally, such as Figure 1 and Figure 2 As shown, the anti-mistake protrusion 11 is an anti-mistake post, and the anti-mistake opening 21 is an anti-mistake hole.

[0076] Optionally, such as Figure 1 As shown, at least one busbar 2 is a first series busbar 24, and there is a gap between the fixing part 31 and the first series busbar 24. The height of the anti-fooling protrusion 11 inserted in the first series busbar 24 is lower than the height of the heat-riveting post 12 inserted in the first series busbar 24.

[0077] The fixing part 31 is spaced apart from the first series row 24, indicating that the fixing part 31 is not connected to the first series row 24. The anti-fooling protrusion 11 does not serve to connect the first series row 24 to the frame 1 or other components. Therefore, it is only necessary to ensure that the anti-fooling protrusion 11 can be inserted into the anti-fooling opening 21, and it does not need to be too high. However, the hot riveting post 12 needs to at least serve to connect the first series row 24 to the frame 1. The higher the hot riveting post 12 inserted into the first series row 24, the more beneficial it is to improve the connection reliability between the first series row 24 and the frame 1.

[0078] By setting the height of the foolproof protrusion 11 inserted in the first series row 24 to be lower than the height of the hot riveting post 12 inserted in the first series row 24, the height of the foolproof protrusion 11 can be reduced while ensuring the reliability of the connection between the hot riveting post 12 and the frame 1, thus reducing the cost of the CCS assembly 10.

[0079] Of course, in some other embodiments, the height of the anti-fooling protrusion 11 in the first tandem row 24 may be higher than or equal to the height of the hot riveting post 12.

[0080] To make the technical solution of the present invention easier to understand, the technical solution of the present invention will be further described below with the example that the length direction of the frame 1 is consistent with the front-to-back direction. Wherein, the front-to-back direction is as follows... Figures 1 to 5 , Figures 7 to 11 As shown.

[0081] For example, such as Figure 1 As shown, the height direction of the anti-foolproof protrusion 11 and the hot riveting post 12 is consistent with the vertical direction, and the dimension of the anti-foolproof protrusion 11 in the vertical direction is smaller than the dimension of the hot riveting post 12 in the vertical direction. Figure 2 As shown, the groove 23 is recessed downwards, and the upper surface of the groove 23 is lower than the upper surface of the busbar 2. Figure 2 As shown, the busbar 2 has two connection holes 22 and a foolproof opening 21. The two connection holes 22 are respectively located on the front and rear sides of the foolproof opening 21. The distance from the foolproof opening 21 to the connection hole 22 located on its front side is greater than the distance from the foolproof opening 21 to the connection hole 22 located on its rear side.

[0082] Optionally, such as Figure 2 and Figure 6 As shown, the busbar 2 is provided with a cell fixing part 26, which is used to weld to the terminal post 2001 of the cell 201 to realize the electrical connection between the busbar 2 and the cell 201.

[0083] Optionally, at least one bus is an input bus, at least one bus 2 is a series bus, and at least one bus is an output bus, wherein the series bus includes the aforementioned first series bus 24. For example... Figure 4 As shown, the frame 1 is provided with an input row slot, a series row slot 13, and an output row slot 14. The input row is installed in the input row slot, the series row is installed in the series row slot 13, and the output row is installed in the output row slot 14. The outer perimeter of the series row slot 13 is larger than that of the series row.

[0084] By installing the input row in the input row slot, the series row in the series row slot 13, and the output row in the output row slot 14, the size of the CCS assembly 10 in the thickness direction of the frame 1 can be further reduced, thus reducing the space occupied by the CCS assembly 10 in the thickness direction of the frame 1.

[0085] Optionally, such as Figure 5 As shown, at least one busbar 2 is a second series busbar 25, the reinforcing plate 3 is fixedly connected to the second series busbar 25, and the height of the anti-foolproof protrusion 11 inserted in the second series busbar 25 is equal to the height of the hot riveting post 12 inserted in the second series busbar 25.

[0086] It is understandable that the anti-fooling protrusion 11 serves to connect the second series row 25, the reinforcing plate 3, and the frame 1. The hot riveting column 12 also serves to connect the second series row 25, the reinforcing plate 3, and the frame 1. The higher the height of the hot riveting column 12 in the second series row 25, the more conducive it is to improving the connection reliability of the second series row 25, the reinforcing plate 3, and the frame 1.

[0087] By setting the height of the anti-foolproof protrusion 11 inserted in the second series row 25 to be equal to the height of the hot riveting post 12 inserted in the second series row 25, the connection reliability of the second series row 25, the reinforcing plate 3 and the frame 1 can be effectively guaranteed, and the reliability of the CCS assembly 10 can be further improved.

[0088] To make the technical solution of the present invention easier to understand, the following description further illustrates the technical solution of the present invention, taking the example that the width direction of the frame 1 is consistent with the left-right direction. Wherein, the left-right direction is as follows... Figures 1 to 11 As shown.

[0089] For example, such as Figure 5 As shown, the second series row 25 is disposed on the right side of FPC5, the fixing part 31 is disposed on the right side of the mounting part 32, the fixing part 31 is stacked and connected to a part of the second series row 25, and the mounting part 32 is stacked and connected to the connecting piece 52.

[0090] Optionally, such as Figure 4 As shown, the frame 1 is provided with a detection groove 15, and the connecting piece 52 and the mounting part 32 are located in the detection groove 15.

[0091] This allows the temperature sensor 4 to be placed inside the detection slot 15, thereby further improving the protective effect of the mounting slot 321 on the temperature sensor 4, reducing the risk of damage to the temperature sensor 4, and helping to further improve the reliability of the CCS component 10.

[0092] Optionally, such as Figure 5 , Figure 7 and Figure 9 As shown, the dimension of the fixing part 31 in the length direction of the frame 1 is larger than the dimension of the mounting part 32 in the length direction of the frame 1.

[0093] For example, such as Figure 5 , Figure 7 and Figure 9 As shown, the dimension of the fixing part 31 in the front-to-back direction is larger than the dimension of the mounting part 32 in the front-to-back direction.

[0094] It is understandable that the larger the dimension of the fixing part 31 in the length direction of the frame 1, the larger the connection area between the fixing part 31 and the busbar 2, the more reliable the connection between the reinforcing plate 3 and the busbar 2, and the easier it is to transmit the downward pressure of the busbar 2 to the reinforcing plate 3; the mounting part 32 is mainly used to install the temperature sensor 4, and there is enough space to install the temperature sensor 4.

[0095] By setting the dimension of the fixing part 31 in the length direction of the frame 1 to be larger than the dimension of the mounting part 32 in the length direction of the frame 1, it is beneficial to improve the connection reliability between the reinforcing plate 3 and the busbar 2, and further improve the reliability of the CCS assembly 10.

[0096] Of course, in other embodiments, the dimension of the fixing part 31 in the length direction of the frame 1 may be equal to or smaller than the dimension of the mounting part 32 in the length direction of the frame 1.

[0097] The frame 1 can be a blister tray. The frame 1 is made of thin-walled plastic and is formed by blistering. The frame 1 provides support for the busbar 2 and FPC5.

[0098] The CCS assembly 10 of this invention, by setting anti-foolproof protrusions 11 and hot riveting posts 12 on the frame 1, achieves the fixation and anti-foolproofing of the busbar 2, reinforcing plate 3 and frame 1, and achieves reliable fixation of temperature sensor 4 while eliminating the sensor frame used to install temperature sensor 4; it reduces the number and types of parts of CCS assembly 10, thereby achieving the purpose of weight reduction and cost reduction.

[0099] like Figure 6 , Figure 10 and Figure 11 As shown, the battery module of this embodiment includes multiple battery cells 201 and a CCS module 10, wherein the CCS module 10 is the CCS module 10 described in any of the above embodiments. A busbar 2 is electrically connected to the terminal post 2001 of the battery cell 201. The multiple battery cells 201 form a battery pack 20, and the CCS module 10 is connected to the battery pack 20.

[0100] Since the CCS component 10 of the present invention can reduce the cost of the CCS component 10, the battery module of the present invention has the advantages of low cost.

[0101] like Figure 6 and Figure 11 As shown, the battery cell 201 includes a battery cell cover plate 2002, and the battery module includes a heat-conducting component 30, which is disposed between the battery cell cover plate 2002 and the reinforcing plate 3.

[0102] Busbar 2 will transfer the downward pressure toward the battery cell 201 to the reinforcing plate 3. Finally, the reinforcing plate 3 will press the heat-conducting component 30 tightly to ensure the reliability of heat conduction between the temperature sensor 4 and the battery cell 201 and improve the temperature acquisition accuracy of the temperature sensor 4.

[0103] Assembly method of battery module according to embodiments of the present invention:

[0104] Install busbar 2 on frame 1;

[0105] Connect the reinforcing plate 3, which is equipped with the temperature sensor 4, to the FPC 5, and then connect the reinforcing plate 3, the busbar 2, and the frame 1 by hot riveting to complete the assembly of the CCS assembly 10.

[0106] Multiple battery cells 201 are assembled into a battery pack 20;

[0107] Place the heat-conducting component 30 on the battery cell 201;

[0108] The busbar 2 of the CCS module 10 is welded to the terminal post 2001 of the cell 201 to achieve the connection between the CCS module 10 and the battery pack 20.

[0109] The vehicle in this embodiment of the invention includes the battery module described in any of the above embodiments. The vehicle can be a pure electric vehicle or a hybrid electric vehicle.

[0110] Because the battery module of this invention has advantages such as low cost, the vehicle of this invention also has advantages such as low cost.

[0111] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A CCS assembly, characterized by, The application relates to a battery module. The battery module comprises a rack body, busbars mounted on the rack body, FPCs mounted on the rack body and electrically connected with the busbars, temperature sensors connected with the FPCs, reinforcing plates comprising fixing parts and mounting parts, and the mounting parts being connected with the FPCs and the fixing parts being fixedly connected with the busbars. The mounting parts are provided with mounting grooves at positions corresponding to the FPCs, and the temperature sensors are arranged in the mounting grooves. The mounting grooves penetrate the reinforcing plates along the height direction of the rack body, the FPCs are arranged on one side of the mounting parts facing the rack body, and the mounting grooves are blocked by the FPCs. The FPCs comprise plate bodies and connecting plates, the connecting plates are arranged in a cantilevered mode and connected with the plate bodies, and the FPCs are arranged on the connecting plates. At least a part of the connecting plates is arranged in a recessed mode along the direction facing the rack body to form the FPCs.

2. The CCS assembly of claim 1, wherein, The mounting parts are arranged in a recessed mode relative to the fixing parts along the direction facing the rack body.

3. The CCS assembly of claim 2, wherein, The rack body is provided with hot riveting columns, the busbars are provided with connecting holes, the fixing parts are provided with fixing holes, the hot riveting columns pass through the connecting holes and the fixing holes, and the hot riveting columns are hot riveting connected with the fixing parts.

4. The CCS assembly of claim 1, wherein, The busbars are provided with recesses arranged in a recessed mode along the direction facing the rack body, and the connecting holes are arranged in the recesses.

5. The CCS assembly of claim 4, wherein, One of the rack body and the busbars is provided with a fool-proof convex, and the other of the rack body and the busbars is provided with a fool-proof hole, and the fool-proof convex is inserted into the fool-proof hole. The rack body is provided with the fool-proof convex, and the busbars are provided with the fool-proof hole.

6. The CCS assembly of claim 1, wherein, The number of the connecting holes is plural, and the distance between at least two connecting holes in the same busbar to the same fool-proof hole is different.

7. The CCS assembly of claim 6, wherein, At least one of the busbars is a first series of busbars, the fixing parts are spaced apart from the first series of busbars, the height of the fool-proof convex inserted into the first series of busbars is lower than the height of the hot riveting column inserted into the first series of busbars, and / or 8. The CCS assembly of claim 6, wherein, At least one of the busbars is a second series of busbars, the fixing parts are fixedly connected with the second series of busbars, the height of the fool-proof convex inserted into the second series of busbars is equal to the height of the hot riveting column inserted into the second series of busbars, and the fool-proof convex is inserted into the fixing hole.

9. The CCS assembly of claim 8, wherein, The application also relates to a battery module. The battery module comprises a plurality of battery cells, a CCS assembly, and the CCS assembly is the CCS assembly in any one of claims 1-10, and the busbars are electrically connected with the pole columns of the battery cells.

10. The CCS assembly of claim 9, wherein, The application further relates to a battery module. The battery module comprises a plurality of battery cells, a CCS assembly, and the CCS assembly is the CCS assembly in any one of claims 1-10, and the busbars are electrically connected with the pole columns of the battery cells.

11. A battery module, characterized by ​ ​ ​ 12. A vehicle characterized by comprising: ​

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