CCS assembly, battery module and vehicle
By designing the top surface of the glue container slot and glue liquid blocking connection row in the CCS component, the battery cell short circuit problem is solved, the component cost is reduced and the connection reliability and safety is improved.
Patent Information
- Application Number
- CN202410108714.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2025-07-25
AI Technical Summary
In existing CCS components, the melt when the battery cell is thermally out of control is prone to overlap to the top of the connection row, which leads to short-circuit problems, and existing solutions increase component costs.
Design the glue container groove on the support frame, the connecting row part is located in the glue container groove and the top surface is lower than the notch. The glue liquid is injected to form a colloid to block the top surface of the connecting row to avoid overlapping of melts, and improve reliability through mechanical connection with the pole column.
It reduces the number of components of CCS components and reduces costs, while improving the connection reliability of the battery cell and the connection row and the safety of the battery module.
Smart Images

Figure CN120376894A_ABST
Abstract
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) includes a plurality of connection bars electrically connected to battery cells to achieve series-parallel connection of multiple battery cells. Among them, the external support frame of the top surface of the connection bar is exposed, so that when a battery cell undergoes thermal runaway, the melt ejected through the explosion-proof valve of the battery cell will be in contact with the top surface of the connection bar. Since the melt contains a large amount of conductive material, when the melt comes into contact with two adjacent connection bars, a short circuit problem of the battery cell occurs. Summary of the Invention
[0003] The present invention provides a CCS component to reduce the cost of the CCS component.
[0004] The CCS component of the present invention includes a support frame and a connection bar. The support frame is provided with a glue-containing groove, the notch of the glue-containing groove is located on the top surface of the support frame, and a pole hole is provided on the bottom wall of the glue-containing groove; at least a part of the connection bar is arranged in the glue-containing groove, the top surface of the part of the connection bar located in the glue-containing groove is lower than the notch of the glue-containing groove, and the positive projection of the connection bar in the direction towards the bottom wall of the glue-containing groove covers the pole hole.
[0005] Optionally, the bottom surface of the part of the connection bar located in the glue-containing groove is higher than the bottom wall of the glue-containing groove. A first space is formed between the connection bar and the notch of the glue-containing groove, and a second space is formed between the connection bar and the bottom wall of the glue-containing groove. The first space and the second space are connected.
[0006] Optionally, there is a gap between the connection bar and the groove wall of the glue-containing groove, and the first space and the second space are communicated through the gap.
[0007] Optionally, a glue-filling groove is formed between the connection bar and the groove wall of the glue-containing groove, and the glue-filling groove forms the gap.
[0008] Optionally, the number of the glue storage grooves and the connecting rows is multiple; at least a part of the glue storage grooves are first glue storage grooves, and at least a part of the connecting rows are first connecting rows. Two pole holes are formed in the bottom wall of the first glue storage groove, and a sealing portion is formed in the part of the bottom wall of the first glue storage groove between the two pole holes. The first connecting row is integrally arranged in the first glue storage groove. The orthographic projection of the first connecting row in the direction towards the bottom wall of the first glue storage groove covers one of the pole holes in part, covers the other pole hole in part, and covers the sealing portion in another part. The bottom surface of the sealing portion is flush with the bottom surface of the support frame, and / or at least a part of the glue storage grooves are second glue storage grooves, and at least a part of the connecting rows are second connecting rows. One pole hole is formed in the bottom wall of the second glue storage groove. A part of the second connecting row is arranged in the second glue storage groove, and the other part of the second connecting row extends out of the second glue storage groove through the notch of the second glue storage groove.
[0009] Optionally, a clamping assembly is arranged in the glue storage groove, and the clamping assembly clamps the connecting row in the height direction of the support frame.
[0010] Optionally, an overflow groove is arranged on the support frame. A baffle is arranged between the overflow groove and the glue storage groove. The baffle is provided with an overflow port, and the bottom end of the overflow port is lower than the notch of the glue storage groove and higher than the top surface of the connecting row.
[0011] Optionally, a support member and a pressing member are arranged in the glue storage groove. The support member is arranged close to the bottom wall of the glue storage groove, and the pressing member is arranged close to the notch of the glue storage groove. The pressing member includes a connecting arm and a pressing head connected to the connecting arm. The connecting arm is formed by the part of the baffle higher than the bottom end of the overflow port. The connecting row is clamped between the support member and the pressing head.
[0012] The present invention further provides a battery module.
[0013] The battery module of the present invention includes a plurality of battery cells and a CCS assembly. The CCS assembly is the CCS assembly described in any one of the above, and the connecting row is electrically connected to the battery cells.
[0014] The present invention further provides a vehicle.
[0015] The vehicle of the present invention includes the battery module described in any one of the above.
[0016] When the CCS component of the present invention is connected to the battery cell, the CCS component is placed on the top of the battery cell. By arranging at least a part of the connecting row in the glue-containing groove, and the orthographic projection of the connecting row in the direction towards the bottom wall of the glue-containing groove covers the pole hole, so that the pole of the battery cell can be electrically connected to the connecting row after passing through the pole hole. By arranging the notch of the glue-containing groove on the top surface of the support frame, and the top surface of the part of the connecting row located in the glue-containing groove is lower than the notch of the glue-containing groove, it is possible to inject glue into the glue-containing groove through the notch of the glue-containing groove, and the glue is arranged higher than the top surface of the connecting row. Thus, the colloid formed after the glue solidifies is used to block the top surface of the connecting row, avoiding the molten matter ejected from the battery cell from bridging between two adjacent connecting rows, resulting in a short circuit problem of the battery cell. Brief Description of the Drawings
[0017] Figure 1 It is a partial structural schematic diagram of the CCS component of an embodiment of the present invention (where one glue-containing groove is filled with glue).
[0018] Figure 2 It is a partial structural schematic diagram of the support frame of the CCS component of an embodiment of the present invention.
[0019] Figure 3 It is a structural schematic diagram of the CCS component of another embodiment of the present invention (where one glue-containing groove is filled with glue).
[0020] Figure 4 It is a partial structural schematic diagram of the support frame of the CCS component of another embodiment of the present invention.
[0021] Figure 5 It is a partial cross-sectional view of the battery module after injecting glue according to an embodiment of the present invention.
[0022] Figure 6 It is a partial structural schematic diagram of the battery module before injecting glue according to an embodiment of the present invention.
[0023] Figure 7 It is a partial structural schematic diagram of the battery module before injecting glue from another perspective according to an embodiment of the present invention.
[0024] Figure 8 It is a partial structural schematic diagram of the battery module before injecting glue and with the connecting row hidden according to an embodiment of the present invention.
[0025] Figure 9 It is a partial structural schematic diagram of the battery module after injecting glue according to an embodiment of the present invention.
[0026] Reference Signs:
[0027] 100, battery module;
[0028] 10, CCS component;
[0029] 1. Support frame; 11. Glue storage groove; 1101. First glue storage groove; 1102. Second glue storage groove; 111. Terminal hole; 112. Sealing part; 113. Support member; 114. Pressing member; 1141. Connecting arm; 1142. Pressing head; 12. Glue filling groove; 13. Glue blocking rib; 14. Glue overflow groove; 15. Baffle wall; 151. Glue overflow port;
[0030] 2. Connection row; 21. Connection part; 22. Transition part; 23. First connection row; 24. Second connection row;
[0031] 3. FPC;
[0032] 4. Colloid;
[0033] 20. Battery cell; 201. Terminal; 202. Top surface of battery cell; 203. Explosion-proof valve of battery cell. Detailed implementation manners
[0034] 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.
[0035] In the related art, in order to solve the problem that the melt adheres to two adjacent connection rows, resulting in a short circuit of the battery cell, after the connection row is connected to the battery cell, generally a layer of high-temperature resistant insulating layer, such as a ceramic composite layer, is adhesively bonded on the top of the support frame to use the high-temperature resistant insulating layer to block the top surface of the connection row. However, the setting of the high-temperature resistant insulating layer will undoubtedly increase the number of components of the CCS assembly, resulting in a relatively high cost of the CCS assembly.
[0036] As Figure 1 and Figure 2 shown, the CCS assembly 10 of the embodiment of the present invention includes a support frame 1 and a connection row 2. The support frame 1 is provided with a glue storage groove 11. The notch of the glue storage groove 11 is arranged on the top surface of the support frame 1, and a terminal hole 111 is opened on the bottom wall of the glue storage groove 11. At least a part of the connection row 2 is arranged in the glue storage groove 11. The top surface of the part of the connection row 2 located in the glue storage groove 11 is lower than the notch of the glue storage groove 11, and the positive projection of the connection row 2 in the direction towards the bottom wall of the glue storage groove 11 covers the terminal hole 111.
[0037] Among them, the positive projection of the connection row 2 in the direction towards the bottom wall of the glue storage groove 11 can be understood as: the positive projection of the connection row 2 on a preset plane, and the preset plane is arranged parallel to the bottom wall of the glue storage groove 11.
[0038] As Figure 5As shown in the figure, when the CCS component 10 of the embodiment of the present invention is connected to the battery cell 20, the CCS component 10 is placed on the top of the battery cell 20. By arranging at least a part of the connecting row 2 in the glue containing groove 11, and the orthographic projection of the connecting row 2 in the direction towards the bottom wall of the glue containing groove 11 covers the pole hole 111, after the pole of the battery cell penetrates through the pole hole 111, it can be electrically connected to the connecting row 2. By arranging the notch of the glue containing groove 11 on the top surface of the support frame 1, and the top surface of the part of the connecting row 2 located in the glue containing groove 11 is set lower than the notch of the glue containing groove 11, it is possible to inject glue liquid into the glue containing groove 11 through the notch of the glue containing groove 11, and the height of the glue liquid is set higher than the top surface of the connecting row 2. Thus, the colloid 4 formed after the glue liquid solidifies blocks the top surface of the connecting row 2, preventing the molten matter ejected from the battery cell 20 from bridging between two adjacent connecting rows 2, which may cause a short circuit problem of the battery cell 20.
[0039] In addition, it is possible to avoid additionally arranging a high-temperature resistant insulating layer on the top of the support frame 1, thereby reducing the number of components of the CCS component 10 and lowering the cost of the CCS component 10.
[0040] Among them, the pole 201 and the connecting row 2 can be welded. The glue liquid is a glue liquid with insulating and high-temperature resistant properties. For example, the glue liquid is a thermosetting silicone glue.
[0041] Optionally, the connecting row 2 includes a connecting portion 21. The connecting portion 21 is arranged in the glue containing groove 11. The top surface of the connecting portion 21 is lower than the notch of the glue containing groove 11. The orthographic projection of the connecting portion 21 in the direction towards the bottom wall of the glue containing groove 11 covers the pole hole 111.
[0042] To make the technical solution of the present invention easier to understand, the following further describes the technical solution of the present invention by taking the height direction of the support frame 1 being consistent with the up and down direction as an example. Among them, the up and down direction is as Figures 1 to 5 shown in the figure.
[0043] For example, the upper surface of the support frame 1 is the top surface of the support frame 1, the lower surface of the support frame 1 is the bottom surface of the support frame 1, the upper surface of the connecting row 2 is the top surface of the connecting row 2, and the lower surface of the connecting row 2 is the bottom surface of the connecting row 2. The glue containing groove 11 extends in the up and down direction. The notch of the glue containing groove 11 is arranged on the upper surface of the support frame 1. The upper surface of the support frame 1 is set higher than the upper surface of the connecting row 2.
[0044] When the battery cell vibrates or expands, it may cause the connection between the connection bar and the pole to be pulled, resulting in the separation of the connection bar and the pole, that is, the problem of connection failure between the connection bar and the pole occurs. In related technologies, multiple windows are opened on the support frame of the CCS component, and each window corresponds to a battery cell. After the connection bar and the pole are connected, a pressure strip is arranged on the support frame, and the pressure strip is connected to the top surface of the battery cell through the window, so as to connect multiple battery cells into a whole by using the pressure strip, avoid the separation of the connection bar and the pole, and improve the connection reliability between the connection bar and the pole. The setting of the pressure strip will also increase the number of components of the CCS component and increase the cost of the CCS component.
[0045] In some embodiments, the bottom surface of the part of the connection bar 2 located in the glue-containing groove 11 is higher than the bottom wall of the glue-containing groove 11. A first space is formed between the connection bar 2 and the notch of the glue-containing groove 11, and a second space is formed between the connection bar 2 and the bottom wall of the glue-containing groove 11. The first space and the second space are connected.
[0046] For example, the part of the glue-containing groove 11 located above the connection bar 2 encloses the first space, and the part of the glue-containing groove 11 located below the connection bar 2 encloses the second space. The first space and the second space are connected up and down.
[0047] As Figure 5 shown, through the above design of the glue-containing groove 11, part of the glue injected into the notch of the glue-containing groove 11 can flow to the side of the connection bar 2 away from the battery cell 20, and this part of the glue solidifies to block the top surface of the connection bar 2; another part can flow to the gap between the connection bar 2 and the top surface 202 of the battery cell 20 of the battery cell 20, and this part of the glue solidifies and bonds with the connection bar 2 and the pole 201 to realize the mechanical connection between the connection bar 2 and the pole 201.
[0048] Thus, between the CCS component 10 and the battery cell 20, in addition to being electrically connected through the connection bar 2 and the pole 201, it is also mechanically connected through the colloid 4 and the pole 201, improving the connection reliability between the connection bar 2 and the pole 201. Therefore, it is possible to avoid additionally setting a pressure strip, further reduce the number of components of the CCS component 10, and reduce the cost of the CCS component 10.
[0049] Optionally, as Figure 5 shown, there is a gap between the connection bar 2 and the groove wall of the glue-containing groove 11, and the first space and the second space are connected through the gap.
[0050] For example, as Figure 5 shown, the gap between the connection bar 2 and the side wall of the glue-containing groove 11 is L, and the size of L can be designed according to actual needs.
[0051] The first space and the second space communicate with each other through the gap between the connecting row 2 and the groove wall of the glue storage groove 11, which can avoid additionally arranging a glue channel for communicating the first space and the second space on the support frame 1, thereby simplifying the structure of the support frame 1, facilitating the processing and manufacturing of the support frame 1, and being beneficial to reducing the manufacturing cost of the CCS assembly 10.
[0052] In addition, by arranging a gap between the connecting row 2 and the groove wall of the glue storage groove 11, the gap can also be filled with glue. After the glue solidifies into the colloid 4, on the one hand, the connecting row 2 and the groove wall of the glue storage groove 11 are bonded through the colloid 4, that is, the connecting row 2 and the support frame 1 are bonded through the colloid 4, thereby improving the connection reliability between the connecting row 2 and the support frame 1; on the other hand, in the height direction of the support frame 1, the parts of the colloid 4 on both sides of the connecting row 2 are connected through the part in the gap, making the colloid 4 in the glue storage groove 11 form a whole, which is beneficial to further improving the connection reliability between the connecting row 2 and the battery cell 20.
[0053] Specifically, as Figure 5 shown, the colloid 4 in the glue storage groove 11 is divided into three parts, namely the part above the connecting row 2, the part below the connecting row 2, and the part flush with the connecting row 2.
[0054] Optionally, as Figure 1 shown, a glue filling groove 12 is formed between the connecting row 2 and the groove wall of the glue storage groove 11, and the glue filling groove 12 forms the above-mentioned gap.
[0055] For example, the upper part of the glue filling groove 12 communicates with the first space, and the lower part of the glue filling groove 12 communicates with the second space, so that the first space and the second space communicate through the glue filling groove 12.
[0056] When connecting the CCS assembly 10 and the battery cell 20, glue is injected into the glue filling groove 12 through the notch of the glue filling groove 12, and the glue fills the glue storage groove 11 by the fluidity of the glue. By arranging the glue filling groove 12, it is convenient to inject glue into the first space and the second space at the same time, improving the injection efficiency of the glue and further improving the installation efficiency of the CCS assembly 10.
[0057] Optionally, as Figure 2 shown, the support frame 1 is provided with an annular glue blocking rib 13, and the glue blocking rib 13 forms the groove wall of the glue storage groove 11.
[0058] Thereby, the structure of the support frame 1 is simple, facilitating the processing and manufacturing of the support frame 1, and thus facilitating the processing and manufacturing of the CCS assembly 10, which is beneficial to further reducing the cost of the CCS assembly 10.
[0059] Optionally, as Figure 4 and Figure 7As shown, a clamping assembly is provided in the glue storage tank 11, and the clamping assembly clamps the connection row 2 in the height direction of the support frame 1.
[0060] For example, as Figure 4 shown, the clamping assembly includes a support member 113 and a pressing member 114. The support member 113 is disposed close to the bottom wall of the glue storage tank 11, and the pressing member 114 is disposed close to the notch of the glue storage tank 11. The connection row 2 is clamped between the support member 113 and the pressing member 114. Exemplarily, the support member 113 is disposed below the pressing member 114, and the connection row 2 is clamped between the support member 113 and the pressing member 114 in the up-down direction.
[0061] By clamping the connection row 2 between the clamping assemblies, it is convenient to pre-fix the connection row 2 on the support frame 1, and avoid the connection row 2 from moving under the impact of the glue during the process of injecting glue into the glue storage tank 11. Thus, it is beneficial to improve the assembly efficiency and assembly accuracy of the CCS assembly 10.
[0062] Optionally, as Figure 4 and Figure 7 shown, a plurality of clamping assemblies are provided in the same glue storage tank 11, that is, the number of support members 113 and pressing members 114 in the same glue storage tank 11 is provided with a plurality of each. Each clamping assembly includes at least one support member 113 and at least one pressing member 114. The same connection row 2 is clamped and fixed by a plurality of clamping assemblies.
[0063] For example, as Figure 2 shown, in the same glue storage tank 11, the number of clamping assemblies is four groups, and each group of clamping assemblies includes two support members 113 and one pressing member 114. In the same clamping assembly, the pressing member 114 is disposed between the two support members 113.
[0064] Optionally, the support member 113 is a support block, and the pressing member 114 is an elastic buckle.
[0065] By setting the pressing member 114 as an elastic buckle, when it is necessary to clamp the connection row 2 between the support member 113 and the pressing member 114, the pressing member 114 can be elastically deformed first, and then the connection row 2 is placed between the support member 113 and the pressing member 114, and then the pressing member 114 elastically resets to cooperate with the support member 113 to clamp the connection row 2. Thus, it is convenient to clamp the connection row 2 between the pressing member 114 and the support member 113, further improving the assembly efficiency of the CCS assembly 10 and reducing the cost of the CCS assembly 10.
[0066] Optionally, as Figure 4As shown in the figure, the support frame 1 is provided with an overflow glue groove 14, and the notch of the overflow glue groove 14 is arranged on the top surface of the support frame 1. A retaining wall 15 is provided between the overflow glue groove 14 and the glue storage groove 11. The retaining wall 15 is provided with an overflow glue port 151, and the bottom end of the overflow glue port 151 is lower than the notch of the overflow glue groove 14 and higher than the top surface of the connection row 2.
[0067] For example, the lower end of the overflow glue port 151 is lower than the upper surface of the support frame 1 and higher than the upper surface of the connection row 2.
[0068] Thus, when the glue liquid in the glue storage groove 11 exceeds the top surface of the connection row 2 and does not exceed the bottom end of the overflow glue port 151, the glue liquid will not flow into the overflow glue groove 14 under the blocking action of the retaining wall 15; when the glue liquid in the glue storage groove 11 exceeds the bottom end of the overflow glue port 151, it can flow into the overflow glue groove 14 through the overflow glue port 151, avoiding the chaotic flow of the glue liquid. In addition, by setting the distance between the bottom end of the overflow glue port 151 and the top surface of the connection row 2, the thickness of the colloid 4 on the top surface of the connection row 2 can be controlled, facilitating the setting of the thickness of the colloid 4 on the top surface of the connection row 2 according to needs.
[0069] Optionally, as Figure 4 shown, the pressing member 114 includes a connecting arm 1141 and a pressing head 1142, and the pressing head 1142 is connected to the connecting arm 1141. The connecting arm 1141 is formed by the part of the retaining wall 15 that is higher than the bottom end of the overflow glue port 151. The connection row 2 is clamped between the support member 113 and the pressing head 1142.
[0070] Thus, the connecting arm 1141 is not only used to fix the pressing head 1142, but also used to enclose the overflow glue port 151, that is, the connecting arm 1141 integrates at least two functions. It is beneficial to simplify the structure of the CCS component 10 and further reduce the cost of the CCS component 10. In addition, when the pressing member 114 is an elastic buckle, the connecting arm 1141 can also increase the elasticity of the elastic buckle, facilitating the pre-fixation of the connection row 2 in the glue storage groove 11.
[0071] Optionally, as Figure 3 shown, the number of the glue storage grooves 11 and the connection rows 2 are both multiple. At least a part of the glue storage grooves 11 are first glue storage grooves 1101, and at least a part of the connection rows 2 are first connection rows 23. Two pole holes 111 are formed on the bottom wall of the first glue storage groove 1101. The part of the bottom wall of the first glue storage groove 1101 between the two pole holes 111 forms a sealing part 112, and the bottom surface of the sealing part 112 is flush with the bottom surface of the support frame 1. The first connection row 23 is integrally arranged in the first glue storage groove 1101, and the orthographic projection of the first connection row 23 in the direction towards the bottom wall of the first glue storage groove 1101 covers one of the pole holes 111, a part of the other pole hole 111, and another part of the sealing part 112.
[0072] For example, the first connection row 23 is a series row, and the first connection row 23 includes two connection parts 21. As Figure 5 shown, the two connection parts 21 are respectively electrically connected to the pole columns 201 of two different battery cells 20 to achieve the series connection of the two battery cells 20. A transition part 22 is provided between the two connection parts 21 of the first connection row 23, and the transition part 22 is used for the electrical connection between the two connection parts 21. The orthographic projections of the two connection parts 21 in the direction of the bottom wall of the first glue storage groove 1101 respectively cover the two pole column holes 111 of the first glue storage groove 1101; the orthographic projection of the transition part 22 in the direction of the bottom wall of the first glue storage groove 1101 covers the blocking part 112. Among them, the lower surface of the blocking part 112 is flush with the lower surface of the support frame 1, and the upper surface of the blocking part 112 is lower than the upper surface of the connection row 2.
[0073] It can be understood that when the CCS assembly 10 is connected to the battery cell 20, the bottom surface of the support frame 1 is attached to the top surface 202 of the battery cell. By setting the bottom surface of the blocking part 112 to be flush with the bottom surface of the support frame 1, the bottom surface of the blocking part 112 can be attached to the top surface 202 of the battery cell. Thus, the gap between two adjacent battery cells 20 is blocked by the blocking part 112, preventing the glue liquid in the first glue storage groove 1101 from flowing out through the gap between two adjacent battery cells 20, resulting in glue liquid waste and turbulent flow. Therefore, the cost and reliability of the battery module 100 having the CCS assembly 10 can be saved.
[0074] Optionally, as Figure 3 shown, at least a part of the glue storage groove 11 is the second glue storage groove 1102, and at least a part of the connection row 2 is the second connection row 24. A pole column hole 111 is opened on the bottom wall of the second glue storage groove 1102. A part of the second connection row 24 is arranged in the second glue storage groove 1102, and the other part of the second connection row 24 extends out of the second glue storage groove 1102 through the notch of the second glue storage groove 1102.
[0075] For example, the second connection row 24 is an input row or an output row. The part of the input row or output row located in the second glue storage groove 1102 is electrically connected to the pole column 201 of a battery cell 20; the part of the input row or input row extending out of the second glue storage groove 1102 is used to connect to the battery power distribution system.
[0076] By designing the second glue storage groove 1102 and the second connection row 24 as described above, the top surface of the input row or output row can be blocked by the colloid 4, avoiding the short - circuit problem of the battery cell 20 connected to the input row or output row.
[0077] As Figure 3 shown, the CCS assembly 10 further includes an FPC 3. The FPC 3 is connected to the connection row 2 and is used to detect the voltage and temperature of the battery cell 20. Among them, the FPC 3 and the connection row 2 can be welded.
[0078] As Figures 5 to 9 shown, the battery module 100 of the embodiment of the present invention includes a plurality of battery cells 20 and a CCS component 10. The CCS component 10 is the CCS component 10 described in any of the above embodiments, and the connection row 2 is electrically connected to the battery cell 20.
[0079] Next, with reference to Figures 3 to 7 , the assembly process of the battery module 100 of the embodiment of the present invention will be described:
[0080] Place the CCS component 10 on the upper side of the battery cell 20 so that a glue storage cavity that is sealed at the lower end and open at the upper end is formed between the glue storage groove 11 and the battery cell 20. First, weld the connection row 2 to the pole 201 of the battery cell 20 to achieve the electrical connection between the connection row 2 and the battery cell 20. After that, inject glue into the glue injection groove 12, and the glue flows into the glue storage cavity, so that the connection row 2 is immersed in the glue. The excess glue flows into the glue overflow groove 14 through the glue overflow port 151 to control the height of the glue in the glue storage cavity. After the glue solidifies into the colloid 4, on the one hand, the colloid 4 covers the top surface of the connection row 2 to prevent the melt ejected from the explosion-proof valve 203 of the battery cell 20 from bridging the connection row 2 and causing problems such as short circuit after the battery cell 20 undergoes thermal runaway; on the other hand, the connection row 2 and the pole 201 are bonded by the colloid 4 to reduce the connection failure problem at the connection between the connection row 2 and the pole 201 caused by the expansion or vibration of the battery cell 20.
[0081] Since the CCS component 10 can prevent the battery cell 20 from having a short circuit problem, the battery module 100 of the embodiment of the present invention has relatively high safety.
[0082] The vehicle of the embodiment of the present invention includes the battery module 100 described in any of the above embodiments. Among them, the vehicle can be a pure electric vehicle or a hybrid electric vehicle.
[0083] Since the battery module 100 of the embodiment of the present invention has relatively high safety, the vehicle of the embodiment of the present invention has relatively high safety.
[0084] 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 support frame, which is provided with a glue-containing groove. The notch of the glue-containing groove is located on the top surface of the support frame, and the bottom wall of the glue-containing groove is provided with a pole hole. A connection row, at least a part of which is arranged in the glue-containing groove. The top surface of the part of the connection row located in the glue-containing groove is lower than the notch of the glue-containing groove, and the positive projection of the connection row in the direction towards the bottom wall of the glue-containing groove covers the pole hole.
2. The CCS component according to claim 1, characterized in that, The bottom surface of the part of the connection row located in the glue-containing groove is higher than the bottom wall of the glue-containing groove. A first space is formed between the connection row and the notch of the glue-containing groove, and a second space is formed between the connection row and the bottom wall of the glue-containing groove. The first space and the second space are communicated with each other.
3. The CCS component according to claim 2, wherein, There is a gap between the connection row and the groove wall of the glue-containing groove, and the first space and the second space are communicated through the gap.
4. The CCS component according to claim 3, wherein, A glue-filling groove is formed between the connection row and the groove wall of the glue-containing groove, and the glue-filling groove forms the gap.
5. The CCS component according to claim 1, wherein The number of the glue-containing grooves and the connection rows is multiple; At least a part of the glue-containing grooves are first glue-containing grooves, and at least a part of the connection rows are first connection rows. Two pole holes are provided on the bottom wall of the first glue-containing groove. The part of the bottom wall of the first glue-containing groove between the two pole holes forms a blocking part, and the bottom surface of the blocking part is flush with the bottom surface of the support frame. The first connection row is integrally arranged in the first glue-containing groove. The positive projection of the first connection row in the direction towards the bottom wall of the first glue-containing groove covers one of the pole holes, a part of it covers the other pole hole, and another part of it covers the blocking part, and / or At least a part of the glue-containing grooves are second glue-containing grooves, and at least a part of the connection rows are second connection rows. One pole hole is provided on the bottom wall of the second glue-containing groove. A part of the second connection row is arranged in the second glue-containing groove, and the other part of the second connection row extends out of the second glue-containing groove through the notch of the second glue-containing groove.
6. The CCS component according to claim 1, wherein A clamping assembly is arranged in the glue-containing groove, and the clamping assembly clamps the connection row in the height direction of the support frame.
7. The CCS component according to claim 1, characterized in that, The support frame is provided with an overflow glue groove. A baffle is arranged between the overflow glue groove and the glue-containing groove. The baffle is provided with an overflow glue port, and the bottom end of the overflow glue port is lower than the notch of the glue-containing groove and higher than the top surface of the connection row.
8. The CCS component according to claim 7, characterized in that, A support member and a pressing member are arranged in the glue-containing groove. The support member is arranged close to the bottom wall of the glue-containing groove, and the pressing member is arranged close to the notch of the glue-containing groove; The pressing member includes a connecting arm and a pressing head connected to the connecting arm. The connecting arm is formed by the part of the baffle higher than the bottom end of the overflow glue port. The connection row is clamped between the support member and the pressing head.
9. A battery module, characterized in that, Comprising: Multiple battery cells; A CCS assembly, which is the CCS assembly according to any one of claims 1-8, and the connection row is electrically connected to the battery cell.
10. A vehicle, characterized in that, Including the battery module according to claim 9.