Ccs assembly, battery module and energy storage device

Abstract

The utility model relates to battery design technical field especially relates to a CCS assembly, battery module and energy storage device. The CCS assembly mainly includes support, support column and support muscle. Among them, a plurality of mounting grooves are arranged on the support, and the support muscle is formed between the adjacent two mounting grooves. The support column is arranged in the mounting groove, and the end of the support column away from the support is same in height with the end of the support muscle away from the support; the support muscle and the support column are configured to contact with the liquid cooling plate to form the support to the liquid cooling plate; the side of the support away from the mounting groove is configured to contact with the cover plate of the battery cell to form the support. The CCS assembly can improve the support stability to the liquid cooling plate, reduce the phenomenon that the liquid cooling plate displaces, improve the heat dissipation efficiency and reduce the security risk.

Description

Technical Field

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

[0002] Currently, lithium-ion battery modules are widely used due to their advantages such as high energy density and long cycle life. To ensure that the battery module maintains a suitable operating temperature during charging and discharging, liquid cooling technology has become the mainstream solution. Among them, the top liquid cooling solution, by setting a liquid cooling plate on the top of the battery module, can effectively improve heat dissipation efficiency and ensure the safety and stability of the battery module.

[0003] As a key component of the battery module, the CCS (Cell Connection System) not only serves as the electrical connection between battery cells, but its structural design also directly affects the assembly stability of the liquid cooling plate. In existing battery modules, the top liquid cooling plate lacks stable structural support, making it susceptible to displacement or deformation due to external forces such as vibration and impact. This affects heat dissipation efficiency and can even damage the liquid cooling plate, increasing safety hazards in the battery module.

[0004] Therefore, there is an urgent need to design a CCS module, battery module, and energy storage device to solve the above technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a CCS module, battery module and energy storage device that can improve the support stability of the liquid cooling plate, reduce the displacement of the liquid cooling plate, improve heat dissipation efficiency and reduce safety hazards.

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

[0007] On the one hand, this utility model provides a CCS component, including:

[0008] The bracket is provided with multiple mounting slots, and a supporting rib is formed between two adjacent mounting slots;

[0009] A support column is disposed within the mounting groove, and the end of the support column away from the bracket is at the same height as the end of the support rib away from the bracket; the support rib and the support column are configured to contact the liquid cooling plate to provide support for the liquid cooling plate; the side of the bracket away from the mounting groove is configured to contact the cover plate of the battery cell to provide support.

[0010] As an optional technical solution for CCS components, the mounting groove is filled with structural adhesive, and the upper surface of the structural adhesive is flush with the end of the support column away from the bracket.

[0011] As an optional technical solution for a CCS component, the support ribs are provided in multiples, which are distributed at intervals along the length direction of the bracket, and each support rib extends along the width direction of the bracket.

[0012] As an optional technical solution for a CCS component, the support columns are configured as multiple, and the multiple support columns and multiple support ribs are alternately distributed along the length direction of the bracket.

[0013] As an optional technical solution for a CCS component, the CCS component further includes a series aluminum busbar, which is disposed in the mounting groove; the series aluminum busbar has a strip-shaped hole, and the support column is provided with a snap-fit ​​part, which passes through the strip-shaped hole and engages with the series aluminum busbar.

[0014] As an optional technical solution for CCS components, multiple support columns and strip holes are provided, with at least one support column provided in each mounting slot, and the support columns and strip holes are provided in a one-to-one correspondence.

[0015] As an optional technical solution for CCS components, the snap-fit ​​part includes an annular protrusion arranged circumferentially along the support column, and the inner wall of the strip hole is provided with an annular groove adapted to the annular protrusion, and the annular protrusion and the annular groove are snap-fitted together.

[0016] As an optional technical solution for a CCS component, the CCS component further includes a data acquisition harness, a connector, and a strap. The bracket is provided with mounting holes, and the strap passes through the mounting holes to fix the data acquisition harness on the bracket. One end of the data acquisition harness is connected to the series aluminum busbar to acquire the electrical signal of the battery cell, and the other end of the data acquisition harness is connected to the connector. The connector is configured to transmit the electrical signal acquired by the data acquisition harness to an external device.

[0017] On the other hand, this utility model provides a battery module, which includes multiple battery cells, a liquid cooling plate, and a CCS assembly as described in any of the above optional technical solutions; the top of the battery cell is provided with a cover plate, and the lower end face of the bracket of the CCS assembly is in close contact with the cover plate; the liquid cooling plate is located on the side of the bracket away from the battery cell, and the liquid cooling plate is in close contact with the support ribs and support columns of the CCS assembly.

[0018] On the other hand, this utility model provides an energy storage device, which includes a housing and the aforementioned battery module. The battery module is disposed inside the housing, and the energy storage device is used for storing or releasing electrical energy.

[0019] The beneficial effects of this utility model include at least the following:

[0020] This utility model provides a CCS assembly, which mainly includes a bracket, a support column, and a support rib. The bracket has multiple mounting slots, and a support rib is formed between adjacent mounting slots. The support column is disposed within the mounting slot, and the end of the support column furthest from the bracket is at the same height as the end of the support rib furthest from the bracket. The support rib and support column are configured to contact a liquid cooling plate to support the liquid cooling plate. The side of the bracket facing away from the mounting slot is configured to contact the cover plate of the battery cell to provide support.

[0021] As described above, the bracket in this utility model is provided with mounting grooves, and adjacent mounting grooves form support ribs. The support columns and support ribs are at the same height and jointly support the liquid cooling plate, thereby increasing the support points and support strength of the liquid cooling plate on the top of the battery module, dispersing the weight and support stress of the liquid cooling plate, ensuring uniform stress on the liquid cooling plate, avoiding displacement or deformation due to insufficient local support, and ensuring its stability and reliability. The side of the bracket away from the mounting groove contacts the cover plate of the battery cell. The cover plate of the battery cell provides stable bottom support for the bracket, making the bracket less prone to shaking. Then, the weight of the liquid cooling plate and external forces are transferred to the battery cell through the support ribs and support columns, thereby greatly improving the support effect of the liquid cooling plate and improving the safety and heat dissipation performance of the battery module.

[0022] This utility model provides a battery module that can improve heat dissipation efficiency, reduce safety hazards, and ensure high-performance operation of the battery module.

[0023] This invention provides an energy storage device with high structural stability, which can reduce the failure rate of energy storage devices, reduce safety hazards, and improve safety performance. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the CCS component and liquid cooling plate provided in this embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the CCS component provided in this embodiment of the present invention;

[0027] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0028] Figure 4This is an exploded view of the CCS component provided in this embodiment of the present invention;

[0029] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle.

[0030] Figure Labels

[0031] 10. Bracket; 11. Mounting slot; 12. Support rib; 13. Support column; 14. Mounting hole; 20. Series aluminum busbar; 21. Strip hole; 30. Data acquisition harness; 40. Connector; 50. Strap;

[0032] 100. Liquid cooling plate. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] This embodiment provides a CCS component that can improve the support stability of the liquid cooling plate, reduce the displacement of the liquid cooling plate, improve heat dissipation efficiency, and reduce the safety hazards of the battery module.

[0041] like Figures 1-5 As shown, the CCS assembly mainly includes a bracket 10, a support column 13, and a support rib 12. The bracket 10 has multiple mounting slots 11, and a support rib 12 is formed between adjacent mounting slots 11. The support column 13 is disposed within the mounting slot 11, and the end of the support column 13 away from the bracket 10 is at the same height as the end of the support rib 12 away from the bracket 10. The support rib 12 and the support column 13 are configured to contact the liquid cooling plate 100 to provide support for the liquid cooling plate 100. The side of the bracket 10 facing away from the mounting slot 11 is configured to contact the cover plate of the battery cell to provide support.

[0042] Based on the above design, the bracket 10 in this embodiment is provided with mounting grooves 11, and adjacent mounting grooves 11 form support ribs 12. The support column 13 has the same height as the support rib 12 and together supports the liquid cooling plate 100, thereby increasing the support points and support strength of the liquid cooling plate 100 on the top of the battery module, dispersing the weight and support stress of the liquid cooling plate 100, ensuring that the liquid cooling plate 100 is subjected to uniform force, avoiding displacement or deformation caused by insufficient local support, and ensuring its stability and reliability. The side of the bracket 10 away from the mounting groove 11 contacts the cover plate of the battery cell. The cover plate of the battery cell provides stable bottom support for the bracket 10, making the bracket 10 less prone to shaking. Then, the weight and external force of the liquid cooling plate 100 are transferred to the battery cell through the support ribs 12 and support column 13, thereby greatly improving the support effect of the liquid cooling plate 100 and improving the safety and heat dissipation performance of the battery module.

[0043] In some alternative implementations, the bracket 10 is made of insulating rubber.

[0044] like Figures 2-5 As shown, multiple support ribs 12 are distributed at intervals along the length of the bracket 10, and each support rib 12 extends along the width of the bracket 10. This forms uniform support points along the length of the liquid cooling plate 100, avoiding local deformation of the liquid cooling plate 100 due to the concentration of support points. Each support rib 12 extends along the width of the bracket 10, covering the width range of the liquid cooling plate 100, ensuring that the liquid cooling plate 100 is subjected to balanced force in the width direction, and further improving the support effect on the liquid cooling plate 100.

[0045] For example, the support ribs 12 are set to 10-20, and the interval is set to 30mm-50mm. The side of the support rib 12 away from the bracket 10 is flat to ensure close contact with the liquid cooling plate 100.

[0046] In some optional embodiments, multiple support columns 13 are provided, and these multiple support columns 13 and multiple support ribs 12 are alternately distributed along the length of the bracket 10. This further optimizes the support effect on the liquid cooling plate 100, making the support more uniform and reasonable. This layout can more effectively disperse the pressure on the liquid cooling plate 100, reduce local stress concentration, and improve the overall stability and load-bearing capacity of the bracket 10. At the same time, the alternating distribution design can also minimize the amount of material used in the bracket 10 while ensuring the support effect, thereby reducing the weight and cost of the CCS assembly.

[0047] like Figures 2-5 As shown, the CCS assembly also includes a series aluminum busbar 20, which is disposed in the mounting groove 11. The series aluminum busbar 20 has a strip hole 21, and the support column 13 is provided with a buckle part, which passes through the strip hole 21 and engages with the series aluminum busbar 20.

[0048] Specifically, the series aluminum busbar 20 is installed within the mounting groove 11, without occupying the support space of the support rib 12 and support column 13, thus avoiding interference with the support of the liquid cooling plate 100. The snap-fit ​​part of the support column 13 passes through the slot 21 of the series aluminum busbar 20 for snap-fit, replacing the traditional hot riveting process and reducing the hot riveting process and corresponding tooling costs. The snap-fit ​​connection is a detachable structure, facilitating later maintenance or replacement of the series aluminum busbar 20. At the same time, the snap-fit ​​fit can reduce material deformation and stress concentration problems caused by the traditional hot riveting process, improving the reliability and stability of the connection between the series aluminum busbar 20 and the bracket 10.

[0049] In this embodiment, the mounting groove 11 is filled with structural adhesive. The upper surface of the structural adhesive is flush with the end of the support column 13 away from the bracket 10, and the structural adhesive covers and shields the series aluminum busbar 20. The structural adhesive fills the gaps in the mounting groove 11, forming a support surface for the liquid cooling plate 100 together with the support column 13 and the support rib 12, increasing the contact area between the liquid cooling plate 100 and the bracket 10, further dispersing the pressure on the liquid cooling plate 100, and avoiding excessive local stress. At the same time, the structural adhesive has adhesive properties, which can help fix the liquid cooling plate 100, reduce the relative displacement between the liquid cooling plate 100 and the support rib 12 and support column 13 during vibration, and improve the stability of the support.

[0050] For example, the structural adhesive can be set as thermally conductive silicone grease.

[0051] like Figures 2-5 As shown, in this embodiment, multiple support columns 13 and strip holes 21 are provided. At least one support column 13 is provided in each mounting groove 11, and the support columns 13 correspond one-to-one with the strip holes 21. This allows the series aluminum busbar 20 to be fixed at multiple points along the length of the bracket 10, avoiding local warping or shaking of the series aluminum busbar 20 caused by single-point fixing. The support columns 13 in each mounting groove 11 all participate in the fixing, ensuring the fit between the series aluminum busbar 20 and the bracket 10.

[0052] For example, each mounting slot 11 is provided with two support columns 13, corresponding to two strip holes 21 on the series aluminum busbar 20.

[0053] Optionally, the edges of the strip hole 21 in this embodiment are rounded to avoid scratching the snap-fit ​​part of the support column 13 during assembly.

[0054] In some alternative embodiments, the snap-fit ​​portion includes an annular protrusion (not shown) arranged circumferentially along the support post 13, and the inner wall of the strip hole 21 is provided with an annular groove (not shown) adapted to the annular protrusion, and the annular protrusion and the annular groove are snap-fitted together.

[0055] Specifically, the annular protrusion and the annular groove engage to form a 360° circumferential fixation, preventing the series aluminum busbar 20 from swaying radially. The design of the annular protrusion and the annular groove means that there is no need to align the direction during the engagement process. Simply insert the support column 13 into the strip hole 21 and press it to complete the assembly, simplifying the operation process and improving assembly efficiency.

[0056] Optionally, the support column 13 is made of elastic plastic material (such as POM), and the annular protrusion can be slightly deformed to facilitate passing through the strip hole 21 during assembly.

[0057] like Figure 2 and Figure 4 As shown, the CCS assembly also includes a data acquisition harness 30, a connector 40, and a strap 50. The bracket 10 is provided with a mounting hole 14, and the strap 50 passes through the mounting hole 14 to fix the data acquisition harness 30 to the bracket 10. One end of the data acquisition harness 30 is connected to the series aluminum busbar 20 to acquire the electrical signal of the battery cell, and the other end of the data acquisition harness 30 is connected to the connector 40. The connector 40 is configured to transmit the electrical signal acquired by the data acquisition harness 30 to an external device.

[0058] The strap 50 secures the data acquisition harness 30 through the mounting hole 14, preventing the harness from becoming loose, tangled, or rubbing against other components due to vibration, thus ensuring a neat layout. One end of the data acquisition harness 30 is connected to the series aluminum busbar 20, which directly acquires electrical signals such as voltage and temperature of the battery cell (the series aluminum busbar 20 is connected to the battery cell tabs). The other end is transmitted to an external device via the connector 40, enabling real-time monitoring of the battery status.

[0059] Optionally, the acquisition harness 30 is a shielded wire and is connected to the series aluminum busbar 20 by soldering.

[0060] Optionally, the strap 50 is a nylon cable tie.

[0061] Optionally, the mounting holes 14 are circular holes, and the mounting holes 14 are evenly distributed every 25mm-30mm along the length of the bracket 10. The number of mounting holes 14 can be flexibly matched according to the needs of fixing the acquisition harness 30.

[0062] This embodiment also provides a battery module, which includes multiple battery cells, a liquid cooling plate 100, and the aforementioned CCS assembly; the top of the battery cell is provided with a cover plate, and the lower end face of the support 10 of the CCS assembly is in contact with the cover plate; the liquid cooling plate 100 is located on the side of the support 10 away from the battery cell, and the liquid cooling plate 100 is in contact with the support rib 12 and support column 13 of the CCS assembly.

[0063] Specifically, the cell cover plate is fitted to the lower end face of the bracket 10, providing rigid support for the bracket 10. The liquid cooling plate 100 is in close contact with the support ribs 12 and support columns 13, ensuring no gaps between the liquid cooling plate 100 and the bracket 10. The heat from the cell can be quickly transferred to the liquid cooling plate 100 through the support ribs 12 and support columns 13. The design of the CCS module enhances the support effect on the liquid cooling plate 100, improves heat dissipation efficiency, reduces safety hazards, and ensures high-performance operation of the battery module.

[0064] Furthermore, the liquid cooling plate 100 is made of aluminum alloy, and the side of the liquid cooling plate 100 that contacts the support rib 12 and the support column 13 is coated with thermally conductive silicone grease to improve heat transfer efficiency.

[0065] This embodiment also provides an energy storage device, which includes a housing and the aforementioned battery module. The battery module is disposed within the housing, and the energy storage device is used for storing or releasing electrical energy. The battery module is disposed within the housing, which protects the module from external impacts, dust, and moisture.

[0066] Because the energy storage device has the aforementioned battery module, it has high structural stability, which can reduce the failure rate of the energy storage device, reduce safety hazards, and improve safety performance.

[0067] Obviously, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

[0068] Note that in the description of this specification, the references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A CCS component, characterized in that, include: A bracket (10) is provided with a plurality of mounting slots (11), and a support rib (12) is formed between two adjacent mounting slots (11); A support column (13) is disposed in the mounting groove (11), and the end of the support column (13) away from the bracket (10) is at the same height as the end of the support rib (12) away from the bracket (10); the support rib (12) and the support column (13) are configured to contact the liquid cooling plate (100) to provide support for the liquid cooling plate (100); the side of the bracket (10) away from the mounting groove (11) is configured to contact the cover plate of the battery cell to provide support.

2. The CCS component according to claim 1, characterized in that, The mounting groove (11) is filled with structural adhesive, and the upper surface of the structural adhesive is flush with the end of the support column (13) away from the bracket (10).

3. The CCS component according to claim 1, characterized in that, The support ribs (12) are provided in multiples, and the multiple support ribs (12) are distributed at intervals along the length direction of the bracket (10), and each support rib (12) extends along the width direction of the bracket (10).

4. The CCS component according to claim 3, characterized in that, The support column (13) is configured as a plurality of such columns, and the plurality of support columns (13) and the plurality of support ribs (12) are alternately distributed along the length direction of the bracket (10).

5. The CCS component according to claim 1, characterized in that, The CCS assembly also includes a series aluminum busbar (20), which is disposed in the mounting groove (11); the series aluminum busbar (20) has a strip hole (21), and the support column (13) has a buckle part, which passes through the strip hole (21) and engages with the series aluminum busbar (20).

6. The CCS component according to claim 5, characterized in that, The support column (13) and the strip hole (21) are both provided in multiples. At least one support column (13) is provided in each mounting groove (11), and the support column (13) and the strip hole (21) are provided in a one-to-one correspondence.

7. The CCS component according to claim 5, characterized in that, The buckle includes an annular protrusion arranged circumferentially along the support column (13), and the inner wall of the strip hole (21) is provided with an annular groove that matches the annular protrusion. The annular protrusion and the annular groove are snapped together.

8. The CCS component according to claim 5, characterized in that, The CCS assembly also includes a data acquisition harness (30), a connector (40), and a strap (50). The bracket (10) is provided with a mounting hole (14). The strap (50) passes through the mounting hole (14) and fixes the data acquisition harness (30) on the bracket (10). One end of the data acquisition harness (30) is connected to the series aluminum busbar (20) to acquire the electrical signal of the battery cell. The other end of the data acquisition harness (30) is connected to the connector (40). The connector (40) is configured to transmit the electrical signal acquired by the data acquisition harness (30) to an external device.

9. A battery module, characterized in that, The battery module includes multiple battery cells, a liquid cooling plate (100), and a CCS assembly as described in any one of claims 1-8; the top of the battery cell is provided with a cover plate, and the lower end face of the bracket (10) of the CCS assembly is in contact with the cover plate; the liquid cooling plate (100) is located on the side of the bracket (10) away from the battery cell, and the liquid cooling plate (100) is in contact with the support rib (12) and support column (13) of the CCS assembly.

10. An energy storage device, characterized in that, The energy storage device includes a housing and a battery module as described in claim 9, wherein the battery module is disposed within the housing, and the energy storage device is used for storing or releasing electrical energy.

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