CCS assembly, battery module and vehicle

Abstract

The invention discloses a CCS assembly, a battery module and a vehicle, the CCS assembly comprises a support and a busbar, the support is provided with a pressure relief channel, a channel inlet and a channel outlet, the channel inlet and the channel outlet are both communicated with the pressure relief channel, and the channel inlet is arranged on one side of the support in the thickness direction; the busbar is connected with the support and comprises a first connecting part, and the first connecting part and the pressure relief channel are arranged in a spaced mode. When the temperature of the battery cell is too high and explosion venting occurs, released hot fluid can enter the pressure relief channel through the channel inlet, then flows along the pressure relief channel and flows out through the channel outlet, and control over the flowing path of the hot fluid is achieved. According to the battery module, the interval is formed between the first connecting part and the pressure relief channel, so that the problem of heat diffusion caused by the fact that hot fluid released by the battery cell falls on the busbar is avoided, and the safety of the battery module is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power batteries, and particularly relates to a CCS component, a battery module and a vehicle. Background Art

[0002] CCS (Cells Contact System, integrated busbar) is an important electrical connection component inside a battery module, which is used to realize the series and parallel connection between battery cells and collect signals such as temperature and voltage for connection and transmission. CCS follows the development route and trend of the battery structure, and continuously realizes innovation and upgrading in aspects such as lightweight, integration, and cost optimization. With the continuous increase in the energy density of battery cells, once a battery cell explodes and leaks, a large amount of hot fluid will directly fall on the busbar of the CCS, and then transfer heat to other battery cells through the busbar, that is, cause the problem of thermal diffusion, affecting the safety of the entire battery module. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to some extent.

[0004] Therefore, an embodiment of the present invention provides a CCS component to improve the safety of the battery module.

[0005] The CCS component of the embodiment of the present invention includes a bracket and a busbar. The bracket is provided with a pressure relief channel, a channel inlet and a channel outlet. Both the channel inlet and the channel outlet are communicated with the pressure relief channel. The channel inlet is arranged on one side of the bracket in the thickness direction. The busbar is connected to the bracket, and the busbar includes a first connection part, and the first connection part is arranged at an interval from the pressure relief channel.

[0006] Optionally, the number of the channel inlets is multiple, and the multiple channel inlets are communicated with the same pressure relief channel. The bracket is provided with a partition part that breaks under a preset pressure, and the partition part blocks the channel inlet.

[0007] Optionally, the bracket is provided with an isolation film, and the isolation film blocks the channel inlet, and the isolation film forms the partition part. Or, the pressure relief channel includes a first flow channel wall and a second flow channel wall, and the first flow channel wall and the second flow channel wall are arranged opposite to each other in the thickness direction of the bracket. The first flow channel wall has a thinning part, and the area where the thinning part is located forms the channel inlet, and the thinning part forms the partition part.

[0008] Optionally, the number of the busbars is multiple. The first connection parts of the multiple busbars form multiple connection groups. The multiple first connection parts in the same connection group are arranged at intervals in a first direction, and the multiple connection groups are arranged at intervals in a second direction. The pressure relief channel extends in the first direction, and the pressure relief channel is arranged on at least one side of the connection group in the second direction. The first connection part and the pressure relief channel are arranged at intervals in the second direction. Wherein, both the first direction and the second direction are perpendicular to the thickness direction of the bracket, and the first direction is perpendicular to the second direction.

[0009] Optionally, the busbar has a second connection part. The CCS assembly further includes a circuit board, the circuit board is electrically connected to the second connection part, and the circuit board and the pressure relief channel are arranged in a stacked manner; and / or, the channel outlet is arranged at at least one end of the pressure relief channel in the first direction.

[0010] Optionally, the bracket includes a first plate body and a second plate body that are arranged in a stacked manner along its thickness direction. The first plate body and the second plate body are hermetically connected and enclose the pressure relief channel. The busbar is connected to one of the first plate body and the second plate body, and the other of the first plate body and the second plate body is provided with an avoidance opening, and the avoidance opening is arranged corresponding to the first connection part. The channel inlet is arranged on the second plate body; or, the bracket includes a first frame body and a second frame body, the second frame body is connected to the first frame body, the busbar is connected to the first frame body, the pressure relief channel, the channel inlet and the channel outlet are all arranged on the second frame body, and the second frame body is provided with an avoidance opening, and the avoidance opening is arranged corresponding to the first connection part.

[0011] Optionally, the flow channel wall of the pressure relief channel is provided with an insulating layer and / or a heat insulating layer; and / or, the busbar is arranged on the side of the bracket away from the channel inlet.

[0012] The present invention also provides a battery module.

[0013] The battery module of the present invention includes a CCS assembly and multiple battery cells. The CCS assembly is the CCS assembly described in any one of the above; multiple battery cells, the first connection part is electrically connected to the pole column of the battery cell, and the channel inlet faces the battery cell.

[0014] Optionally, the number of the channel inlets is multiple, and the multiple channel inlets are arranged in one-to-one correspondence with the multiple battery cells.

[0015] The present invention also provides a vehicle.

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

[0017] When the CCS component of the present invention is assembled with the battery cell, the channel inlet is provided on the side of the bracket facing the battery cell, and the first connecting portion of the bus bar is electrically connected to the pole column of the battery cell. When the battery cell explodes due to excessive temperature, for example, when the explosion-proof valve of the battery cell opens, the released hot fluid can enter the pressure relief channel through the channel inlet, and then flow along the pressure relief channel and flow out through the channel outlet, realizing the control of the flow path of the hot fluid. By providing a gap between the first connecting portion and the pressure relief channel, it is avoided that the hot fluid released by the battery cell falls on the bus bar and causes a heat diffusion problem, improving the safety of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a partially enlarged view of the CCS component according to an embodiment of the present invention.

[0019] Figure 2 is a partial cross-sectional view of the CCS component according to an embodiment of the present invention.

[0020] Figure 3 is a top view of the CCS component according to an embodiment of the present invention.

[0021] Figure 4 is Figure 2 a perspective view of the first plate body in

[0022] Figure 5 is Figure 2 a perspective view of the second plate body in

[0023] Figure 6 is Figure 2 a partial structural schematic diagram of the second plate body in

[0024] Figure 7 is a perspective view of the CCS component according to another embodiment of the present invention.

[0025] Figure 8 is a bottom view of the CCS component according to another embodiment of the present invention.

[0026] Figure 9 is a partial cross-sectional view of the CCS component according to another embodiment of the present invention.

[0027] Figure 10 is Figure 8 a structural schematic diagram of the second frame body in

[0028] Figure 11 is a perspective view of the battery module according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] 100, battery module;

[0031] 10, CCS component;

[0032] 1. Bracket; 11. Pressure relief channel; 111. First flow channel wall; 112. Second flow channel wall; 12. Channel inlet; 13. Channel outlet; 14. Partition portion; 15. Avoidance opening; 101. First plate body; 1011. First protrusion; 102. Second plate body; 1021. Second protrusion; 103. First frame body; 104. Second frame body;

[0033] 2. Busbar; 21. First connection portion; 22. Second connection portion; 201. Series connection row; 202. Jumper row; 203. Input row; 204. Output row;

[0034] 3. Circuit board;

[0035] 4. Heat insulation layer;

[0036] 20. Battery cell. Detailed implementation manners

[0037] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0038] As Figures 1 to 10 shown, the CCS assembly 10 of the embodiment of the present invention includes a bracket 1 and a busbar 2. The bracket 1 is provided with a pressure relief channel 11, a channel inlet 12 and a channel outlet 13. Both the channel inlet 12 and the channel outlet 13 are communicated with the pressure relief channel 11. The channel inlet 12 is arranged on one side in the thickness direction of the bracket 1. The busbar 2 is connected to the bracket 1. The busbar 2 includes a first connection portion 21, and the first connection portion 21 is arranged at an interval from the pressure relief channel 11.

[0039] As Figure 11 shown, when the CCS assembly 10 of the embodiment of the present invention is assembled with the battery cell 20, the channel inlet 12 is arranged on the side of the bracket 1 facing the battery cell 20, and the first connection portion 21 of the busbar 2 is electrically connected to the pole column of the battery cell 20. When the temperature of the battery cell 20 is too high and an explosion occurs, for example, when the explosion-proof valve of the battery cell 20 is opened, the released hot fluid can enter the pressure relief channel 11 through the channel inlet 12, and then flow along the pressure relief channel 11 and flow out through the channel outlet 13, realizing the control of the flow path of the hot fluid. By providing an interval between the first connection portion 21 and the pressure relief channel 11, it is avoided that the hot fluid released by the battery cell 20 falls on the busbar 2 and causes a heat diffusion problem, improving the safety of the battery module 100. Among them, the hot fluid includes gas, ejecta, etc.

[0040] In some embodiments, as Figure 4 and Figure 8As shown, the busbar 2 has a first connection portion 21. The first connection portions 21 of multiple busbars 2 form multiple connection groups. The multiple first connection portions 21 in the same connection group are arranged at intervals in the first direction, and the multiple connection groups are arranged at intervals in the second direction. The pressure relief channel 11 extends in the first direction. The pressure relief channel 11 is arranged on at least one side of the connection group in the second direction, and there is an interval in the second direction between the first connection portion 21 and the pressure relief channel 11. Multiple battery cells 20 form multiple battery cell groups. The multiple battery cells 20 in the same battery cell group are arranged in sequence in the first direction, and the multiple battery cell groups are arranged in sequence in the second direction. Among them, both the first direction and the second direction are perpendicular to the thickness direction of the bracket 1, and the first direction is perpendicular to the second direction.

[0041] To make the technical solution of the present invention easier to understand, the following takes the thickness direction of the bracket 1 being consistent with the up and down direction, the first direction being consistent with the front and back direction, and the second direction being consistent with the left and right direction as an example to further describe the technical solution of the present invention.

[0042] For example, as Figure 4 and Figure 8 shown, the first connection portions 21 of multiple busbars 2 form four connection groups. The multiple first connection portions 21 in the same connection group are arranged at intervals in the front and back direction, and the four connection groups are arranged at intervals in the left and right direction. The pressure relief channel 11 extends in the front and back direction. The number of pressure relief channels 11 is two, and the pressure relief channels 11 are arranged between two adjacent connection groups in the left and right direction. There is an interval in the left and right direction between the first connection portion 21 and the pressure relief channel 11. Multiple battery cells 20 form two battery cell groups. The multiple battery cells 20 in the same battery cell group are arranged in sequence in the front and back direction, and the two battery cell groups are arranged in sequence in the left and right direction. The two pressure relief channels 11 correspond to the two battery cell groups one by one. When any one of the battery cells 20 in the battery cell group explodes, the generated hot fluid can be discharged through the same pressure relief channel 11. Among them, the pressure relief channel 11 is arranged corresponding to the battery cell group, which can be understood as: the pressure relief channel 11 is arranged in alignment with the battery cell group.

[0043] The above designs of the busbar 2 and the pressure relief channel 11 enable the battery cells 20 in the same battery cell group to share the same pressure relief channel 11, which is beneficial to simplifying the structure of the CCS assembly 10 and facilitating the processing and manufacturing of the CCS assembly 10.

[0044] Optionally, as Figure 1 and Figure 3As shown, the bus bar 2 includes a series connection bar 201, a jumper bar 202, an input bar 203, and an output bar 204. Among them, the series connection bar 201 includes two first connection parts 21, and the two first connection parts 21 are respectively electrically connected to the pole columns of two adjacent battery cells 20 in the first direction. The jumper bar 202 includes two first connection parts 21, and the two first connection parts 21 are respectively electrically connected to the pole columns of two adjacent battery cells 20 in the second direction. Both the input bar 203 and the output bar 204 include one first connection part 21.

[0045] For example, as Figure 1 shown, two adjacent battery cells 20 in the front-back direction are respectively the first battery cell and the second battery cell. One of the two first connection parts 21 of the series connection bar 201 is electrically connected to the positive pole column of the first battery cell, and the other of the two first connection parts 21 of the series connection bar 201 is electrically connected to the negative pole column of the second battery cell. Two adjacent battery cells 20 in the left-right direction are respectively the third battery cell and the fourth battery cell. One of the two first connection parts 21 of the jumper bar 202 is electrically connected to the positive pole column of the third battery cell, and the other of the two first connection parts 21 of the jumper bar 202 is electrically connected to the negative pole column of the fourth battery cell.

[0046] Optionally, as Figure 1 and Figure 2 shown, the CCS assembly 10 further includes a circuit board 3. As Figure 4 shown, the bus bar 2 has a second connection part 22, and the circuit board 3 is electrically connected to the second connection part 22. The circuit board 3 and the pressure relief channel 11 are stacked in the thickness direction of the bracket 1. Among them, the circuit board 3 can be an FPC (Flexible Printed Circuit, flexible circuit board); the circuit board 3 and the bracket 1 can be bonded, and the circuit board 3 and the second connection part 22 can be welded. By electrically connecting the circuit board 3 and the second connection part 22, the temperature and voltage of the battery cell 20 can be collected.

[0047] For example, the circuit board 3 is arranged on the upper side of the pressure relief channel 11, so that the circuit board 3 and the pressure relief channel 11 are stacked in the up-down direction.

[0048] By stacking the circuit board 3 and the pressure relief channel 11 in the thickness direction of the bracket 1, the integration degree of the CCS assembly 10 can be improved, which is beneficial to the lightweight and integrated design of the CCS assembly 10.

[0049] Optionally, the circuit board 3 is arranged on the side of the bracket 1 away from the channel inlet 12.

[0050] For example, as Figure 2 shown, the channel inlet 12 is arranged on the lower side of the bracket 1, and the circuit board 3 is arranged on the upper side of the bracket 1.

[0051] Thus, the bracket 1 can be used to separate the circuit board 3 from the battery cell 20, preventing the hot fluid released when the battery cell 20 explodes from falling on the circuit board 3, and further improving the safety of the battery module 100.

[0052] Optionally, the bus bar 2 is disposed on a side of the bracket 1 away from the channel inlet 12.

[0053] For example, as Figure 2 shown, the channel inlet 12 is disposed on the lower side of the bracket 1, and the bus bar 2 is disposed on the upper side of the bracket 1.

[0054] Thus, the bracket 1 can be used to separate the bus bar 2 from the battery cell 20, more effectively preventing the hot fluid released when the battery cell 20 explodes from falling on the bus bar 2, and further improving the safety of the battery module 100.

[0055] Optionally, the channel outlet 13 is disposed at at least one end of the pressure relief channel 11 in the first direction.

[0056] For example, the channel outlet 13 is disposed at both ends of the pressure relief channel 11 in the front-rear direction. As Figure 3 shown, the hot fluid in the pressure relief channel 11 can flow out through the channel outlets 13 at both its front and rear ends, more effectively preventing the hot fluid from falling on the bus bar 2, and further improving the safety of the battery module 100.

[0057] In some embodiments, as Figure 5 、 Figure 6 and Figure 8 shown, the number of the channel inlets 12 is multiple, and the multiple channel inlets 12 communicate with the same pressure relief channel 11. As Figure 2 and Figure 9 shown, the bracket 1 is provided with a partition portion 14 that breaks under a preset pressure, and the partition portion 14 blocks the channel inlet 12.

[0058] During specific use, the channel inlets 12 correspond to the battery cells 20 one by one. When a battery cell 20 explodes, the hot fluid it releases causes the pressure at the channel inlet 12 corresponding to the exploding battery cell 20 to rise. When the pressure at this channel inlet 12 reaches the preset pressure, the partition portion 14 at this channel inlet 12 breaks, allowing the hot fluid to enter the pressure relief channel 11, and then flowing along the pressure relief channel 11 and finally flowing out through the channel outlet 13. Herein, the correspondence between the channel inlet 12 and the battery cell 20 can be understood as: the channel inlet 12 is aligned with the battery cell 20.

[0059] By providing a partition 14 that ruptures under a preset pressure at the channel inlet 12, it is possible to prevent hot fluid from reaching other unvented battery cells 20 through the channel inlet 12 during the flow of the hot fluid along the pressure relief channel 11, thereby avoiding thermal diffusion problems. That is, the partition 14 can separate the hot fluid from the unvented battery cells 20, further enhancing the safety of the battery module 100.

[0060] In some embodiments, as Figure 2 and Figure 9 shown, the bracket 1 is provided with an isolation film that seals the channel inlet 12, and the isolation film forms the partition 14. Among them, the isolation film can be an insulating film that ruptures under a preset pressure; the isolation film can be bonded to the bracket 1.

[0061] For example, as Figure 2 and Figure 9 shown, the pressure relief channel 11 includes a first flow channel wall 111 and a second flow channel wall 112, and the first flow channel wall 111 and the second flow channel wall 112 are arranged opposite to each other along the thickness direction of the bracket 1. The first flow channel wall 111 is provided with the channel inlet 12, and the isolation film is connected to the first flow channel wall 111.

[0062] By providing the isolation film as the partition 14, it is convenient to select the type or thickness of the isolation film according to requirements such as the preset pressure, facilitating the design and manufacture of the CCS component 10.

[0063] In some other embodiments, the first flow channel wall 111 has a thinning portion, and the area where the thinning portion is located forms the channel inlet 12, and the thinning portion forms the partition 14. Among them, the thickness of the thinning portion is less than the thickness of other parts of the first flow channel wall 111.

[0064] By providing the thinning portion on the first flow channel wall 111, when the pressure at the channel inlet 12 reaches the preset pressure, the thinning portion ruptures first to open the channel inlet 12.

[0065] By providing the thinning portion on the first flow channel wall 111 and using the thinning portion as the partition 14, it is beneficial to simplify the structure of the bracket 1, thereby further facilitating the processing and manufacturing of the CCS component 10 and reducing the cost of the CCS component 10.

[0066] Optionally, as Figure 2 and Figure 9 shown, the flow channel wall of the pressure relief channel 11 is provided with an insulating layer and / or a heat insulating layer 4. In other words, the flow channel wall of the pressure relief channel 11 is provided with an insulating layer or a heat insulating layer 4; or, the flow channel wall of the pressure relief channel 11 is provided with an insulating layer and a heat insulating layer 4.

[0067] For example, an insulating material is sprayed or adhered to the flow channel wall of the pressure relief channel 11, so that an insulating layer is formed on the flow channel wall of the pressure relief channel 11; a heat insulating material is sprayed or adhered to the flow channel wall of the pressure relief channel 11, so that a heat insulating layer 4 is formed on the flow channel wall of the pressure relief channel 11.

[0068] By providing an insulating layer on the flow channel wall of the pressure relief channel 11, insulation between the hot fluid and the bracket 1 can be achieved, preventing the hot fluid adhering to the bracket 1 from forming a conductive part, which may cause a short circuit of the battery cell 20, and further improving the safety of the battery module 100; by providing a heat insulating layer 4 on the flow channel wall of the pressure relief channel 11, heat insulation between the hot fluid and the bracket 1 can be achieved, preventing the heat of the hot fluid from being transferred to other battery cells 20 that have not exploded through the bracket 1, and further improving the safety of the battery module 100.

[0069] In some embodiments, as Figure 2 、 Figure 4 and Figure 5 shown, the bracket 1 includes a first plate body 101 and a second plate body 102 that are stacked in the thickness direction of the bracket 1. The first plate body 101 and the second plate body 102 are hermetically connected and enclose the pressure relief channel 11. The bus bar 2 is connected to one of the first plate body 101 and the second plate body 102, and the other of the first plate body 101 and the second plate body 102 is provided with an avoidance opening 15, which is arranged corresponding to the first connection part 21, so that the first connection part 21 is electrically connected to the pole of the battery cell 20. The channel inlet 12 is arranged on the second plate body 102. Among them, the avoidance opening 15 is arranged corresponding to the first connection part 21, which can be understood as: the avoidance opening 15 is aligned with the first connection part 21.

[0070] For example, the first plate body 101 is arranged on the upper side of the second plate body 102, and the lower surface of the first plate body 101 is hermetically connected to the upper surface of the second plate body 102. The bus bar 2 is connected to the first plate body 101, and the second plate body 102 is provided with an avoidance opening 15, which is arranged corresponding to the first connection part 21, so that the first connection part 21 is electrically connected to the pole of the battery cell 20.

[0071] By setting the bracket 1 to include the first plate body 101 and the second plate body 102, the structure of the bracket 1 is simple, which is convenient for the processing and manufacturing of the bracket 1, further convenient for the processing and manufacturing of the CCS component 10, and reduces the cost of the CCS component 10.

[0072] Optionally, the first plate body 101 and the second plate body 102 are bonded or thermally riveted.

[0073] Among them, the first plate body 101 and the second plate body 102 can be bonded by structural adhesive or double-sided adhesive. One of the first plate body 101 and the second plate body 102 is provided with a thermal riveting post, and the other of the first plate body 101 and the second plate body 102 is provided with a perforation. The thermal riveting post passes through the perforation and is thermally riveted.

[0074] Optionally, as Figure 2 , Figure 4 and Figure 5 shown, the first plate body 101 is provided with a first protrusion 1011 protruding in a direction away from the second plate body 102, and the first protrusion 1011 encloses a first groove; the second plate body 102 is provided with a second protrusion 1021 protruding in a direction away from the first plate body 101, and the second protrusion encloses a second groove. The first groove and the second groove enclose a pressure relief channel 11.

[0075] By providing the first groove in the first plate body 101 and the second groove in the second plate body 102, and using the first groove and the second groove to enclose the pressure relief channel 11, it is beneficial to save the material cost of the bracket 1, thereby further reducing the cost of the CCS component 10.

[0076] Optionally, the bus bar 2 is integrally formed with the first plate body 101. For example, the bus bar 2 is integrally injection-molded with the first plate body 101.

[0077] Optionally, the first plate body 101 is an injection molding tray or a vacuum forming tray, and the second plate body 102 is an injection molding plate.

[0078] In some other embodiments, as Figure 8 and Figure 9 shown, the bracket 1 includes a first frame body 103 and a second frame body 104, and the second frame body 104 is connected to the first frame body 103. The bus bar 2 is connected to the first frame body 103, and the pressure relief channel 11, the channel inlet 12, and the channel outlet 13 are all provided in the second frame body 104. The second frame body 104 is provided with an avoidance opening 15, and the avoidance opening 15 corresponds to the first connection portion 21.

[0079] Among them, the first frame body 103 can be formed by the bracket of the CCS component in the prior art, and the second frame body 104 is formed by a frame body having a pressure relief channel 11, a channel inlet 12, and a channel outlet 13. Therefore, on the basis of the CCS component in the prior art, only a frame body having a pressure relief channel 11, a channel inlet 12, and a channel outlet 13 needs to be added to form the CCS component 10 of the embodiment of the present invention. That is, the structure of the CCS component in the prior art can be not changed, and on this basis, a frame body having a pressure relief channel 11, a channel inlet 12, and a channel outlet 13 is designed to form the CCS component 10 of the embodiment of the present invention.

[0080] Thus, on the basis of the prior art, only relevant equipment such as a mold for the second frame body 104 to be additionally designed and formed is required, reducing the manufacturing cost of the CCS component 10.

[0081] Optionally, the first frame body 103 and the second frame body 104 are bonded or thermally riveted.

[0082] Among them, the first frame body 103 and the second frame body 104 can be bonded by structural adhesive or double-sided adhesive. One of the first frame body 103 and the second frame body 104 is provided with a hot riveting post, and the other of the first frame body 103 and the second frame body 104 is provided with a perforation. The hot riveting post passes through the perforation and is hot riveted and welded.

[0083] Optionally, the bus bar 2 is integrally formed with the first frame body 103. For example, the bus bar 2 and the first frame body 103 are integrally injection molded.

[0084] Optionally, the first frame body 103 is an injection molded tray or a vacuum formed tray, and the second plate body 102 is an injection molded plate.

[0085] As Figure 11 As shown, the battery module 100 of the embodiment of the present invention includes a CCS component 10 and a plurality of battery cells 20. The CCS component 10 is the CCS component 10 described in any of the above embodiments. The first connection portion 21 is electrically connected to the pole column of the battery cell 20, and the channel inlet 12 faces the battery cell 20. Among them

[0086] When the battery cell 20 explodes, the hot fluid released by the battery cell 20 can enter the pressure relief channel 11 through the channel inlet 12, and then flow along the pressure relief channel 11 and flow out through the channel outlet 13, realizing the control of the flow path of the hot fluid, and avoiding the hot fluid released by the battery cell 20 falling on the bus bar 2 and causing a heat diffusion problem, improving the safety of the battery module 100.

[0087] Optionally, the number of the channel inlets 12 is multiple, and the multiple channel inlets 12 are arranged in one-to-one correspondence with the multiple battery cells 20.

[0088] For example, as Figure 11 As shown, the CCS component 10 is arranged on the upper side of the battery cell 20, and the channel inlet 12 is arranged directly above the corresponding battery cell 20.

[0089] Thus, when the battery cell 20 explodes, the released hot fluid can enter the pressure relief channel 11 through the corresponding channel inlet 12, and will not flow to the adjacent battery cell 20, more effectively avoiding the heat diffusion problem and further improving the safety of the battery module 100.

[0090] Optionally, the battery cell 20 is provided with an explosion-proof valve, and the channel inlet 12 is arranged corresponding to the explosion-proof valve of the corresponding battery cell 20.

[0091] Thus, when the temperature of the battery cell 20 is too high, the explosion-proof valve first opens to explode, and the released hot fluid reaches the corresponding channel inlet 12. When the pressure at the channel inlet 12 reaches the preset pressure, the partition portion 14 ruptures and enters the pressure relief channel 11 through the corresponding channel inlet 12.

[0092] The vehicle according to an embodiment of the present invention includes the battery module 100 described in any of the above embodiments. The vehicle may be a pure electric vehicle or a hybrid electric vehicle. The vehicle may include a battery pack, wherein the battery pack includes a box body and the battery module 100, and the battery module 100 is disposed in the box body.

[0093] Since the battery module 100 has good safety, the vehicle according to an embodiment of the present invention has advantages such as good safety.

[0094] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present invention.

Claims

1. A CCS component, characterized in that, Comprising: A bracket, the bracket is provided with a pressure relief channel, a channel inlet and a channel outlet, the channel inlet and the channel outlet are both communicated with the pressure relief channel, and the channel inlet is arranged on one side in the thickness direction of the bracket; A bus bar, the bus bar is connected to the bracket, the bus bar includes a first connection portion, and the first connection portion is arranged at an interval from the pressure relief channel.

2. The CCS component according to claim 1, characterized in that The number of the channel inlets is multiple, and the multiple channel inlets are communicated with the same pressure relief channel; The bracket is provided with a partition portion that breaks under a preset pressure, and the partition portion blocks the channel inlet.

3. The CCS component according to claim 2, characterized in that, The bracket is provided with an isolation film, the isolation film blocks the channel inlet, and the isolation film forms the partition portion; or The pressure relief channel includes a first flow channel wall and a second flow channel wall, the first flow channel wall and the second flow channel wall are arranged opposite to each other in the thickness direction of the bracket, the first flow channel wall has a thinning portion, the area where the thinning portion is located forms the channel inlet, and the thinning portion forms the partition portion.

4. The CCS component according to claim 1, characterized in that The number of the bus bars is multiple, the first connection portions of the multiple bus bars form multiple connection groups, the multiple first connection portions in the same connection group are arranged at intervals in a first direction, and the multiple connection groups are arranged at intervals in a second direction; The pressure relief channel extends in the first direction, the pressure relief channel is arranged on at least one side of the connection group in the second direction, and the first connection portion and the pressure relief channel are arranged at an interval in the second direction; Wherein, the first direction and the second direction are both perpendicular to the thickness direction of the bracket, and the first direction is perpendicular to the second direction.

5. The CCS component according to claim 4, wherein The bus bar has a second connection portion, the CCS assembly further includes a circuit board, the circuit board is electrically connected to the second connection portion, and the circuit board is arranged in a stacked manner with the pressure relief channel; and / or The channel outlet is arranged at at least one end of the pressure relief channel in the first direction.

6. The CCS component according to claim 1, wherein, The bracket includes a first plate body and a second plate body that are stacked in the thickness direction thereof, the first plate body and the second plate body are hermetically connected and enclose the pressure relief channel, the bus bar is connected to one of the first plate body and the second plate body, the other of the first plate body and the second plate body is provided with an avoidance opening, the avoidance opening corresponds to the first connection portion, and the channel inlet is arranged on the second plate body; or The bracket includes a first frame body and a second frame body, the second frame body is connected to the first frame body, the bus bar is connected to the first frame body, the pressure relief channel, the channel inlet and the channel outlet are all arranged on the second frame body, and the second frame body is provided with an avoidance opening, and the avoidance opening corresponds to the first connection portion.

7. The CCS component according to any one of claims 1-6, characterized in that, The flow channel wall of the pressure relief channel is provided with an insulating layer and / or a heat insulating layer; and / or The bus bar is arranged on the side of the bracket away from the channel inlet.

8. A battery module, characterized in that, Comprising: A CCS assembly, the CCS assembly is the CCS assembly according to any one of claims 1-7; Multiple battery cells, the first connection portion is electrically connected to the pole posts of the battery cells, and the channel inlet faces the battery cells.

9. The battery module according to claim 8, wherein The number of the channel inlets is multiple, and the multiple channel inlets are arranged in one-to-one correspondence with the multiple battery cells.

10. A vehicle, characterized in that, Comprising the battery module according to claim 8 or 9.

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