CCS assembly, battery module and vehicle

Abstract

The invention discloses a CCS assembly, a battery module and a vehicle, the CCS assembly comprises a wire harness isolation plate, a busbar, a signal acquisition assembly, a reinforcement plate and a temperature sensor, the busbar and the signal acquisition assembly are both connected with the wire harness isolation plate; the reinforcing plate and the temperature sensor are both installed on the signal acquisition assembly, the reinforcing plate is fixedly connected with the wire harness isolation plate, and the orthographic projection of the reinforcing plate in the direction of the wire harness isolation plate covers the temperature sensor. According to the CCS assembly disclosed by the invention, the thickness of the heat-conducting glue is easy to control, so that the temperature acquisition precision of the battery cell can be 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] The CCS (Cells Contact System) occupies a critical connection position in the battery pack. It connects directly to the electrode terminals of the battery modules, collecting the electrical energy from multiple battery modules. The CCS includes a signal acquisition component, a wiring harness isolation plate, a busbar, and a temperature sensor. The wiring harness isolation plate provides support for the busbar and the signal acquisition component. The temperature sensor, located on the signal acquisition component, is used to collect the cell temperature, enabling real-time monitoring of the cell temperature and facilitating modular production of the battery pack.

[0003] In existing technologies, a receiving cavity is typically set in the wire harness isolation plate. The portion of the signal acquisition component that houses the temperature sensor enters the receiving cavity. A reinforcing plate is also provided on the signal acquisition component, and foam is placed on top of the reinforcing plate. The foam absorbs the gap between the receiving cavity and the temperature sensor, allowing the bottom of the temperature sensor to adhere to the thermally conductive adhesive on the top of the battery cell for accurate temperature measurement. However, because the foam is easily deformed under stress, it is difficult to precisely control the thickness of the thermally conductive adhesive, affecting the accuracy of the battery cell temperature measurement. Summary of the Invention

[0004] This invention proposes a CCS component to effectively control the thickness of the thermally conductive adhesive between the temperature sensor and the battery cell, thereby improving the temperature acquisition accuracy of the battery cell.

[0005] The CCS assembly of the present invention includes a wire harness isolation plate, a bus, a signal acquisition component, a reinforcing plate, and a temperature sensor. The bus and the signal acquisition component are both connected to the wire harness isolation plate. The reinforcing plate and the temperature sensor are both mounted on the signal acquisition component. The reinforcing plate is fixedly connected to the wire harness isolation plate, and the orthographic projection of the reinforcing plate toward the wire harness isolation plate covers the temperature sensor.

[0006] Optionally, the top of the wire harness isolation plate is provided with a mounting groove, the reinforcing plate and the temperature sensor are both located in the mounting groove, and the bottom wall of the mounting groove is provided with an overflow outlet.

[0007] Optionally, the bottom surface of the reinforcing plate is in contact with the bottom wall of the mounting groove, and the orthographic projection of the reinforcing plate toward the wire harness isolation plate covers at least a portion of the overflow port; and / or, the orthographic projection of the overflow port toward the reinforcing plate covers the temperature sensor.

[0008] Optionally, the bottom wall of the mounting groove is provided with a glue-blocking rib, which protrudes in the direction toward the reinforcing plate to form a glue-blocking groove, and the glue-blocking groove is connected to the glue overflow port.

[0009] Optionally, the adhesive-blocking groove includes a first portion, which is disposed on at least one side of the adhesive overflow port in the length direction of the wire harness isolation plate; and / or, the adhesive-blocking groove includes a second portion, which is disposed on at least one side of the adhesive overflow port in the width direction of the wire harness isolation plate.

[0010] Optionally, the wire harness isolation plate is provided with reinforcing ribs at its edge.

[0011] Optionally, the wire harness isolation plate is provided with a connecting post, the reinforcing plate is provided with a connecting hole, and the connecting post is inserted into the connecting hole and thermally riveted to the reinforcing plate.

[0012] Optionally, the wire harness isolation plate is provided with a connecting post, the signal acquisition component is provided with a through hole, and the connecting post is inserted into the through hole and thermally riveted to the signal acquisition component.

[0013] The present invention also proposes a battery module.

[0014] The battery module of the present invention includes multiple battery cells, a CCS assembly, and thermally conductive adhesive, wherein the CCS assembly is any of the CCS assemblies described above; the thermally conductive adhesive is disposed between the battery cells and the reinforcing plate, the bottom surface of the thermally conductive adhesive is attached to the top surface of the battery cells, and the cover plate of the thermally conductive adhesive is attached to the bottom surface of the reinforcing plate.

[0015] The present invention also proposes a vehicle.

[0016] The vehicle of the present invention includes the battery module described in any of the preceding claims.

[0017] In use, the CCS component of this invention employs thermally conductive adhesive between the battery cell and the wiring harness isolation plate. This adhesive facilitates heat conduction between the battery cell and a temperature sensor, enabling the sensor to acquire the battery cell's temperature. By connecting the busbar and signal acquisition component to the wiring harness isolation plate, and fixing the reinforcing plate to it, with the reinforcing plate's orthographic projection covering the temperature sensor in the direction towards the isolation plate, the busbar applies pressure towards the battery cell to the wiring harness isolation plate after electrical connection with the battery cell's electrode terminals. The isolation plate, through the signal acquisition component, applies pressure towards the battery cell to the reinforcing plate, which in turn applies pressure towards the battery cell to the thermally conductive adhesive. Because the pressure between the busbar and the wiring harness isolation plate, between the isolation plate and the signal acquisition component, and between the signal acquisition component and the reinforcing plate is easily controlled, the thickness of the thermally conductive adhesive is also easily controlled, thereby improving the accuracy of battery cell temperature acquisition. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a CCS component according to an embodiment of the present invention.

[0019] Figure 2 This is a partial structural diagram of a CCS component according to an embodiment of the present invention.

[0020] Figure 3 This is a partial cross-sectional view of a CCS component in use according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the wire harness isolation plate in a CCS assembly according to an embodiment of the present invention.

[0022] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0023] Figure 6 This is a schematic diagram of the signal acquisition component in a CCS component according to an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the connection between the signal acquisition component and the reinforcing plate in a CCS component according to an embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the connection between the signal acquisition component and the reinforcement plate in a CCS component according to an embodiment of the present invention, from another perspective.

[0026] Figure 9 This is a schematic diagram of the connection between the wire harness isolation plate and the reinforcing plate in a CCS assembly according to an embodiment of the present invention.

[0027] Figure 10 This is a partial structural schematic diagram of the wire harness isolation plate in a CCS assembly according to an embodiment of the present invention.

[0028] Figure 11 This is a schematic diagram of the bus structure in a CCS component according to an embodiment of the present invention.

[0029] Figure 12 This is a schematic diagram of the structure of a battery cell in a battery module according to an embodiment of the present invention.

[0030] Figure 13 yes Figure 12 Enlarged view of point B in the middle.

[0031] Figure label:

[0032] 10. CCS component;

[0033] 1. Wire harness isolation plate; 11. Mounting groove; 111. Glue overflow outlet; 112. Connecting post; 113. Glue blocking groove; 12. Fixing post; 13. Reinforcing rib;

[0034] 2. Reinforcing plate; 21. Protective groove; 22. Connecting hole;

[0035] 3. Temperature sensor;

[0036] 4. Thermally conductive adhesive;

[0037] 5. Busbar; 51. Mounting hole; 52. First welding surface; 53. Second welding surface; 501. Input busbar; 502. Series busbar; 503. Output busbar;

[0038] 6. Signal acquisition component; 61. Connecting arm; 611. Perforation; 62. Fixing arm;

[0039] 20. Battery cell; 201. Cover plate; 202. Battery cell terminal; 203. Explosion-proof valve. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below, with examples of the embodiments 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.

[0041] like Figures 1 to 3 As shown, the CCS component 10 of this embodiment includes a wire harness isolation plate 1, a busbar 5, a signal acquisition component 6, a reinforcing plate 2, and a temperature sensor 3. Both the busbar 5 and the signal acquisition component 6 are connected to the wire harness isolation plate 1. The reinforcing plate 2 and the temperature sensor 3 are both mounted on the signal acquisition component 6. The reinforcing plate 2 is fixedly connected to the wire harness isolation plate 1, and its orthographic projection in the direction towards the wire harness isolation plate 1 covers the temperature sensor 3.

[0042] The positive projection of the reinforcing plate 2 in the direction toward the wire harness isolation plate 1 covers the temperature sensor 3, which can be understood as: the positive projection of the reinforcing plate 2 in the direction toward the wire harness isolation plate 1 blocks the temperature sensor 3.

[0043] In this embodiment of the invention, the CCS component 10, during use, has thermally conductive adhesive 4 placed between the battery cell 20 and the bottom wall of the mounting groove 11. The thermally conductive adhesive 4 facilitates heat conduction between the battery cell 20 and the temperature sensor 3, thereby enabling the temperature sensor 3 to collect data on the battery cell 20. Both the busbar 5 and the signal acquisition component 6 are connected to the wiring harness isolation plate 1. The reinforcing plate 2 is fixedly connected to the wiring harness isolation plate 1, and the orthogonal projection of the reinforcing plate 2 towards the wiring harness isolation plate 1 covers the temperature sensor 3. After the busbar 5 is electrically connected to the electrode terminals of the battery cell 20, the busbar 5 applies pressure towards the battery cell 20 to the wiring harness isolation plate 1. The wiring harness isolation plate 1, through the signal acquisition component 6, applies pressure towards the battery cell 20 to the reinforcing plate 2, thereby causing the reinforcing plate 2 to apply pressure towards the battery cell 20 to the thermally conductive adhesive. Because the pressure between the busbar 5 and the wire harness isolation plate 1, the wire harness isolation plate 1 and the signal acquisition component 6, and the signal acquisition component 6 and the reinforcing plate 2 is easy to control, the thickness of the thermally conductive adhesive 4 is easy to control, thereby improving the temperature acquisition accuracy of the battery cell 20.

[0044] To make the technical solution of the present invention easier to understand, the following description uses the example of the thickness direction of the wire harness isolation plate 1 being consistent with the vertical direction to further illustrate the technical solution of the present invention. Wherein, the vertical direction is as follows... Figures 1 to 6 , Figure 9 As shown.

[0045] For example, such as Figure 3 As shown,

[0046] The CCS assembly 10 is disposed on the upper side of the battery cell 20. The battery cell 20 includes a cover plate 201, and thermally conductive adhesive 4 is disposed on the upper side of the cover plate 201 and the lower side of the CCS assembly 10. The downward projection of the reinforcing plate 2 covers the temperature sensor 3.

[0047] Optionally, such as Figure 3 , Figure 5 and Figure 9 As shown, the top of the wire harness isolation plate 1 is provided with a mounting groove 11, and the reinforcing plate 2 and the temperature sensor 3 are both located in the mounting groove 11. The bottom wall of the mounting groove 11 is provided with an overflow port 111.

[0048] For example, such as Figure 3 As shown, the groove opening of the mounting groove 11 faces upward, and the lower surface of the reinforcing plate 2 is in contact with the bottom wall of the mounting groove 11.

[0049] By providing a mounting groove 11 on the top of the wire harness isolation plate 1, and an overflow port 111 on the bottom wall of the mounting groove 11, the thermally conductive adhesive 4 between the battery cell 20 and the bottom wall of the mounting groove 11 can flow out through the overflow port 111. This facilitates observation of the state of the thermally conductive adhesive 4, allowing control of its flow position and preventing it from flowing to other components of the battery cell 20 (such as the explosion-proof valve 203), thus affecting the normal operation of other components and improving the reliability of the battery cell 20.

[0050] Optionally, the overflow port 111 covers the temperature sensor 3 in the orthographic projection toward the reinforcing plate 2.

[0051] For example, such as Figure 3 As shown, the upward projection of the overflow port 111 covers the temperature sensor 3.

[0052] By covering the temperature sensor 3 with the orthogonal projection of the overflow port 111 in the direction towards the reinforcing plate 2, the temperature sensor 3 is positioned directly opposite the overflow port 111. The temperature sensor 3 can directly contact the thermally conductive adhesive 4 through the overflow port 111, shortening the heat transfer path between the temperature sensor 3 and the battery cell 20, which is beneficial to further improve the temperature detection accuracy of the battery cell 20.

[0053] Optionally, such as Figure 3 As shown, the bottom surface of the reinforcing plate 2 is in contact with the bottom wall of the mounting groove 11, and the orthographic projection of the reinforcing plate 2 toward the wire harness isolation plate 1 covers a portion of the overflow port 111.

[0054] By attaching the bottom surface of the reinforcing plate 2 to the bottom wall of the mounting groove 11, and ensuring that the orthographic projection of the reinforcing plate 2 towards the wire harness isolation plate 1 covers a portion of the overflow port 111, the thickness of the thermally conductive adhesive 4 at the overflow port 111 covered by the reinforcing plate 2 can be limited. Specifically, a portion of the thermally conductive adhesive 4 fills the gap between the reinforcing plate 2 and the battery cell 20, and the thickness of this portion of the thermally conductive adhesive 4 is equal to the distance between the bottom surface of the reinforcing plate 2 and the top surface of the battery cell 20. The thermally conductive adhesive 4 at the overflow port 111 not covered by the reinforcing plate 2 can flow out from the side of the reinforcing plate 2. Therefore, the thickness of the thermally conductive adhesive 4 between the temperature sensor 3 and the battery cell 20 is equal to the distance between the bottom surface of the reinforcing plate 2 and the top surface of the battery cell 20, thereby allowing for precise control of the thickness of the thermally conductive adhesive 4 between the temperature sensor 3 and the battery cell 20.

[0055] For example, the thickness of the thermally conductive adhesive 4 at the overflow port 111 covered by the reinforcing plate 2 is L1, where L1 is equal to the distance between the upper surface of the cover plate 201 and the lower surface of the reinforcing plate 2. The thickness of the thermally conductive adhesive 4 at the overflow port 111 not covered by the reinforcing plate 2 is L2, where L2 can be greater than or equal to L1.

[0056] In some embodiments, such as Figure 3 , Figure 8 and Figure 9 As shown, the reinforcing plate 2 is provided with a protective groove 21, and the temperature sensor 3 is located in the protective groove 21.

[0057] By placing the temperature sensor 3 inside the protective groove 21, the temperature sensor 3 can be protected by the protective groove 21, thereby improving the reliability of the temperature sensor 3 and thus improving the reliability of the CCS component 10.

[0058] Optionally, such as Figure 3 , Figure 5 and Figure 9 As shown, the bottom wall of the mounting groove 11 is provided with a glue-blocking rib. The glue-blocking rib protrudes in the direction toward the reinforcing plate 2 to form a glue-blocking groove 113. The glue-blocking groove 113 is connected to the glue overflow port 111.

[0059] The adhesive-blocking ribs protrude in the direction of the reinforcing plate 2, which makes the flow resistance of the thermally conductive adhesive 4 at the adhesive-blocking groove 113 greater. This prevents the thermally conductive adhesive 4 from flowing out from the gap between the bottom wall of the adhesive-blocking groove 113 and the top surface of the battery cell 20, thereby controlling the flow position of the thermally conductive adhesive 4 and preventing it from flowing to other components of the battery cell 20 (such as the explosion-proof valve 203), which would affect the normal use of other components of the battery cell 20 and improve the reliability of the battery cell 20.

[0060] like Figure 3 As shown, the distance between the bottom wall of the adhesive-blocking groove 113 and the top surface of the battery cell 20 is D1, and the distance between the bottom wall of the mounting groove 11 and the top surface of the battery cell 20 is D2, where D1 is less than D2.

[0061] Optionally, the glue-blocking groove 113 includes a first part, which is disposed on at least one side of the glue overflow port 111 along the length of the wire harness separator plate 1.

[0062] The first part is provided on at least one side of the glue overflow port 111 in the length direction of the wire harness isolation plate 1. This can be understood as follows: in the length direction of the wire harness isolation plate 1, the first part is provided on one side of the glue overflow port 111, and the first part is not provided on the other side of the glue overflow port 111; or, in the length direction of the wire harness isolation plate 1, the first part is provided on both sides of the glue overflow port 111.

[0063] By designing the adhesive-blocking groove 113 to include a first part and making the position of the first part as described above, the position of the thermally conductive adhesive 4 can be restricted by the adhesive-blocking groove 113 in the length direction of the wire harness isolation plate 1, thereby more effectively controlling the flow position of the thermally conductive adhesive 4 and further improving the reliability of the battery cell 20.

[0064] Optionally, the glue-blocking groove 113 includes a second part, which is disposed on at least one side of the glue overflow port 111 in the width direction of the wire harness separator plate 1.

[0065] The second part is provided on at least one side of the glue overflow port 111 in the width direction of the wire harness isolation plate 1. This can be understood as follows: in the width direction of the wire harness isolation plate 1, the second part is provided on one side of the glue overflow port 111, and the second part is not provided on the other side of the glue overflow port 111; or, in the width direction of the wire harness isolation plate 1, the second part is provided on both sides of the glue overflow port 111.

[0066] By designing the adhesive-blocking groove 113 to include a second part and positioning the second part as described above, the position of the thermally conductive adhesive 4 can be restricted by the adhesive-blocking groove 113 along the length of the wire harness isolation plate 1, thereby more effectively controlling the flow position of the thermally conductive adhesive 4 and further improving the reliability of the battery cell 20.

[0067] To make the technical solution of the present invention easier to understand, the following description further illustrates the technical solution of the present invention using the example that the length direction of the wire harness isolation plate 1 is consistent with the front-back direction and the width direction of the wire harness isolation plate 1 is consistent with the left-right direction. Wherein, the front-back direction is as follows... Figures 1 to 6 As shown, the left and right directions are as follows Figure 1 , Figure 2 , Figures 4 to 6 , Figure 9 As shown.

[0068] For example, such as Figure 5 As shown, in the front-to-back direction, the first part is provided on both sides of the overflow port 111; in the left-to-right direction, the second part is provided only on the left side of the overflow port 111, and the second part is not provided on the right side of the overflow port 111.

[0069] like Figure 3 As shown, the adhesive baffle 113 is located on the left side of the overflow port 111, and the adhesive baffle 113 is used to restrict the thermally conductive adhesive 4 from flowing to the left side of the overflow port 111.

[0070] like Figure 9 As shown, in the left and right direction, neither the left nor right sides of the overflow port 111 are covered by the reinforcing plate 2, so that the thermally conductive adhesive 4 can flow out from the part of the overflow port 111 located on the left and right sides of the reinforcing plate 2 and flow into the mounting groove 11.

[0071] In some embodiments, such as Figure 5 and Figure 9 As shown, the wire harness isolation plate 1 is provided with reinforcing ribs 13 at the edge of the mounting groove 11.

[0072] By setting reinforcing ribs 13 at the edge of the mounting groove 11, the rigidity of the mounting groove 11 can be improved, ensuring that the mounting groove 11 has sufficient rigidity when the wire harness isolation plate 1 squeezes the thermally conductive adhesive 4, thereby avoiding deformation of the bottom wall of the mounting groove 11, thus allowing for more precise control of the thickness of the thermally conductive adhesive 4, and further improving the temperature acquisition accuracy of the battery cell 20.

[0073] like Figure 2 As shown, bus 5 includes input bus 501, series bus 502 and output bus 503. The series bus 502 is used to connect multiple battery cells 20 in series.

[0074] In some embodiments, such as Figure 5 , Figure 8 and Figure 9 As shown, the bottom wall of the mounting groove 11 is provided with a connecting post 112, and the reinforcing plate 2 is provided with a connecting hole 22. The connecting post 112 is inserted into the connecting hole 22 and is thermally riveted to the reinforcing plate 2. That is, the wire harness isolation plate 1 and the reinforcing plate 2 are connected by a thermal riveting process.

[0075] By hot-riveting the connecting post 112 to the reinforcing plate 2, the structure of the wire harness isolation plate 1 can be simplified and the cost of the CCS assembly 10 can be reduced.

[0076] Optionally, such as Figure 7 As shown, the signal acquisition component 6 has a through hole 611, and the connecting post 112 is inserted into the through hole 611 and is thermally riveted to the signal acquisition component 6.

[0077] By hot-riveting the connecting post 112 to the signal acquisition component 6, the structure of the wire harness isolation plate 1 can be simplified and the cost of the CCS component 10 can be reduced.

[0078] Optionally, the signal acquisition component 6 can be a wire harness, PCB (Printed Circuit Board), FPC (Flexible Printed Circuit), or FFC (Flexible Flat Cable).

[0079] like Figures 6 to 8 As shown, the signal acquisition component 6 is an FPC. It has a connecting arm 61, and the top surface of the reinforcing plate 2 is attached to and connected to the bottom surface of the connecting arm 61. The connecting arm 61 has a through hole 611 for the connecting post 112 to pass through. The top surface of the reinforcing plate 2 and the bottom surface of the connecting arm 61 can be bonded together with structural adhesive.

[0080] For example, such as Figure 7 As shown, the connecting arm 61 is located on the upper side of the reinforcing plate 2. The upper surface of the reinforcing plate 2 is attached to and connected to the lower surface of the connecting arm 61. The connecting arm 61 is provided with a through hole 611 extending in the vertical direction.

[0081] Optionally, the orthographic projection of the connecting arm 61 in the direction toward the reinforcing plate 2 covers the entire reinforcing plate 2.

[0082] This can further increase the connection area between the reinforcing plate 2 and the signal acquisition component 6, thereby improving the connection reliability between the reinforcing plate 2 and the signal acquisition component 6.

[0083] like Figure 10 and Figure 11 As shown, the wire harness isolation plate 1 is provided with a fixing post 12, and the busbar 5 is provided with a fixing hole 51. The fixing post 12 is inserted into the fixing hole 51 and is positioned and matched with the fixing hole 51.

[0084] For example, the fixing hole 51 and the fixing post 12 are clearance fit.

[0085] By using the fixing post 12 inserted into the fixing hole 51 and positioning it with the fixing hole 51, the limit between the wire harness isolation plate 1 and the busbar 5 can be realized, thereby improving the assembly accuracy between the busbar 5 and the wire harness isolation plate 1, and thus improving the assembly accuracy of the CCS assembly 10.

[0086] Of course, in some other embodiments, the wire harness isolation plate 1 may not have a fixing post 12, and the busbar 5 may not have a fixing hole 51, that is, no positioning structure is provided between the wire harness isolation plate 1 and the busbar 5. In this case, when connecting the wire harness isolation plate 1 and the busbar 5, the positioning between the busbar 5 and the wire harness isolation plate 1 can be achieved by using a positioning fixture.

[0087] Optionally, the fixing post 12 is a riveted post, and the fixing post 12 is hot-riveted to the busbar 5.

[0088] By hot-riveting the fixing post 12 to the busbar 5, the fixing post 12 not only serves as the positioning function between the wire harness isolation plate 1 and the busbar 5, but also serves as the connection function between the wire harness isolation plate 1 and the busbar 5. This helps to simplify the structure of the wire harness isolation plate 1 and reduce the cost of the CCS assembly 10.

[0089] like Figure 11 As shown, the busbar 5 includes a first welding surface 52, which is used to weld to the cell terminal 202 of the battery cell 20, thereby realizing the electrical connection between the busbar 5 and the battery cell 20. The first welding surface 52 and the cell terminal 202 of the battery cell 20 can be welded using laser welding, ultrasonic welding, or other methods.

[0090] like Figure 10 and Figure 11 As shown, the busbar 5 also includes a second welding surface 53, and the signal acquisition component 6 is provided with a fixing arm 62. The second welding surface 53 is welded to the fixing arm 62 to realize the electrical connection between the busbar 5 and the signal acquisition component 6, thereby realizing the voltage acquisition of the battery cell 20. The second welding surface 53 and the fixing arm 62 can be welded by laser welding, ultrasonic welding, etc.

[0091] The wire harness isolation plate 1 has a fixing groove, the size of which is larger than the outer perimeter of the bus 5, providing installation space for the bus 5. The fixing post 12 can be installed within the fixing groove. The wire harness isolation plate 1 provides support for the bus 5 and the signal acquisition assembly 6.

[0092] Optionally, the wire harness separator 1 is a vacuum-formed tray. That is, the wire harness separator 1 is made of thin-walled plastic through vacuum forming.

[0093] By setting the wire harness isolation plate 1 as a blister tray, the processing and manufacturing of the wire harness isolation plate 1 is facilitated and the weight of the wire harness isolation plate 1 is reduced, which is beneficial to the weight reduction and cost reduction of the CCS assembly 10.

[0094] Optionally, the reinforcing plate 2 is made of insulating composite material, and can be formed by injection molding or machining. The reinforcing plate 2 provides protection and fixation for the temperature sensor 3, preventing damage to the temperature sensor 3 and ensuring the reliability of the temperature sensor 3's fixation.

[0095] The battery module of this embodiment includes multiple battery cells 20, a CCS module 10, and thermally conductive adhesive 4. The CCS module 10 is the CCS module 10 described in any of the above embodiments. The thermally conductive adhesive 4 is disposed between the battery cells 20 and the reinforcing plate 2. The bottom surface of the thermally conductive adhesive 4 is attached to the cover plate 201 of the battery cells 20, and the top surface of the thermally conductive adhesive 4 is attached to the bottom surface of the reinforcing plate 2.

[0096] By precisely controlling the thickness of the thermally conductive adhesive 4 between the temperature sensor 3 and the battery cell 20, the temperature acquisition accuracy of the battery cell 20 is improved, thereby enhancing the reliability of the battery module.

[0097] Assembly method of battery module according to embodiments of the present invention:

[0098] First, thermally conductive adhesive 4 is placed on the cover plate 201 of the battery cell 20. Then, the CCS assembly 10 is placed on the battery cell 20. When the CCS assembly 10 and the battery cell 20 are welded, the busbar 5 is pressed by the welding fixture. Then, the downward pressure is conducted to the reinforcing plate 2 through the busbar 5. Finally, the thermally conductive adhesive 4 is pressed by the reinforcing plate 2 to ensure that the thermally conductive adhesive 4 between the temperature sensor 3 and the cover plate 201 is filled tightly, thereby ensuring the reliability of heat conduction between the battery cell 20 and the temperature sensor 3.

[0099] 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.

[0100] Because the battery module of this invention has high reliability, the vehicle of this invention has high safety.

[0101] 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 wire harness isolation plate, a busbar and a signal acquisition assembly, the busbar and the signal acquisition assembly are connected with the wire harness isolation plate, a reinforcing plate and a temperature sensor are mounted on the signal acquisition assembly, the reinforcing plate is fixedly connected with the wire harness isolation plate, and the reinforcing plate covers the temperature sensor in the direction of the wire harness isolation plate. The top of the wire harness isolation plate is provided with a mounting groove, the reinforcing plate and the temperature sensor are arranged in the mounting groove, and the groove bottom wall of the mounting groove is provided with a glue overflow port. The bottom surface of the reinforcing plate is attached to the groove bottom wall of the mounting groove, the reinforcing plate covers at least part of the glue overflow port in the direction of the wire harness isolation plate, and / or the glue overflow port covers the temperature sensor in the direction of the reinforcing plate.

2. The CCS assembly of claim 1, wherein, The groove bottom wall of the mounting groove is provided with a glue blocking rib, the glue blocking rib is arranged in the direction of the reinforcing plate and forms a glue blocking groove, and the glue blocking groove is communicated with the glue overflow port.

3. The CCS assembly of claim 2, wherein, The glue blocking groove comprises a first part and a second part, the first part is arranged on at least one side of the glue overflow port in the length direction of the wire harness isolation plate, and the second part is arranged on at least one side of the glue overflow port in the width direction of the wire harness isolation plate. The wire harness isolation plate is provided with a reinforcing rib at the edge of the mounting groove.

4. The CCS assembly of claim 2, wherein, The wire harness isolation plate is provided with a connecting column, the reinforcing plate is provided with a connecting hole, the connecting column is inserted into the connecting hole and is hot riveted with the reinforcing plate.

5. The CCS assembly of claim 4, wherein, The wire harness isolation plate is provided with a connecting column, the signal acquisition assembly is provided with a through hole, the connecting column is inserted into the through hole and is hot riveted with the signal acquisition assembly. The application relates to a battery module.

6. The CCS assembly of claim 2, wherein, The battery module comprises a plurality of battery cells, a CCS assembly, a heat-conducting glue and a battery module.

7. The CCS assembly of any one of claims 1-6, wherein, The battery module comprises the battery module of claim 9.

8. The CCS assembly of any one of claims 1-6, wherein, ​ 9. A battery module, characterized by ​ ​ ​ ​ 10. A vehicle characterized by comprising: ​

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