Integrated CCS assembly, battery module and battery pack

Abstract

The utility model belongs to the technical field of batteries, and discloses an integrated CCS assembly, a battery module and a battery pack, and the integrated CCS assembly comprises an integrated bracket, a busbar assembly and an acquisition piece. Each integrated bracket comprises a first surface and a second surface which are oppositely arranged, the first surface is provided with a mounting groove group, the corresponding mounting groove groups on the two integrated brackets are configured to be capable of respectively fixing two ends of a plurality of single battery cells, the second surface is provided with a plurality of avoiding holes, and each avoiding hole is communicated with the mounting groove group; the avoiding holes are used for avoiding pole columns of the single battery cells; the busbar assembly is arranged on the second surface and is connected with the pole columns of the plurality of single battery cells, so that the plurality of single battery cells are electrically connected; the acquisition piece is arranged on one side, away from the integrated support, of the busbar assembly and extends to protrude out of the integrated support in the direction parallel to the second surface. According to the integrated CCS assembly, the mounting structure of the battery cell is simplified, the voltage acquisition difficulty is reduced, the production and assembly efficiency is effectively improved, and the material cost is reduced.

Description

Integrated CCS components, battery modules and battery packs Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to an integrated CCS component, battery module and battery pack. Background Technology

[0002] With the promotion and development of new energy sources, the power battery industry has experienced rapid growth. In traditional battery systems, the cells are mostly packaged into modules using external structural components, and then these modules are integrated into the battery housing.

[0003] However, traditional cell assembly methods not only require a large variety and number of components, but also involve a cumbersome, time-consuming, and labor-intensive assembly process, impacting production efficiency. Furthermore, excessive components occupy internal space in the battery pack, reducing its energy density. Simultaneously, the complex installation structure can easily damage the CCS (Cells Contact System) module, leading to difficulties in cell voltage acquisition.

[0004] Therefore, there is an urgent need for an integrated CCS component, battery module, and battery pack to solve the above problems. Summary of the Invention

[0005] One objective of this invention is to provide an integrated CCS module that simplifies the cell installation structure, reduces the difficulty of voltage acquisition, effectively improves production and assembly efficiency, and reduces material costs.

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

[0007] Integrated CCS components include:

[0008] An integrated bracket includes a first surface and a second surface arranged opposite to each other. The first surface is provided with mounting slots. The corresponding mounting slots on the two integrated brackets are configured to fix the two ends of multiple individual battery cells respectively. The second surface is provided with multiple clearance holes. Each clearance hole communicates with the mounting slots. The clearance holes are used to avoid the terminals of the individual battery cells.

[0009] A bus assembly is disposed on the second surface and connected to the terminals of the plurality of individual battery cells to electrically connect the plurality of individual battery cells;

[0010] The collection element is disposed on the side of the busbar assembly opposite to the integrated bracket and extends in a direction parallel to the second surface to protrude from the integrated bracket.

[0011] Optionally, the mounting slot assembly includes multiple snap-fit ​​slots, and a structural adhesive bonding layer is provided between the bottom and / or wall of each snap-fit ​​slot and one of the individual battery cells.

[0012] Optionally, the mounting slot group includes multiple snap-fit ​​slots, the first surface has a length direction and a width direction perpendicular to the length direction, the multiple snap-fit ​​slots are arranged in rows and columns, the length direction is parallel to the row direction of the multiple snap-fit ​​slots, the width direction is parallel to the column direction of the multiple snap-fit ​​slots, and the snap-fit ​​slots in adjacent rows are staggered.

[0013] Optionally, the bus assembly includes a positive output bus, a negative output bus, and multiple series buses. The positive output bus is electrically connected to the positive terminal of one of the individual battery cells, the negative output bus is electrically connected to the negative terminal of another individual battery cell, and the multiple series buses are sequentially connected in series to the positive and negative terminals of the remaining individual battery cells.

[0014] Optionally, each of the positive output bus, the negative output bus, and each of the series busbars is connected to a data acquisition device, and the multiple data acquisition devices protrude from one end of the integrated bracket and are flush with the upper surface.

[0015] Optionally, the mounting slot assembly includes multiple mounting slots, and a pressure relief slot is provided at the bottom of the mounting slot opposite to the explosion-proof valve of the individual battery cell. A pressure relief port is opened on the slot wall away from the clearance hole, and the pressure relief port penetrates the second surface.

[0016] Optionally, the integrated bracket is a one-piece molded structure.

[0017] Another objective of this utility model is to provide a battery module, including multiple individual battery cells and two integrated CCS components as described above. The two integrated brackets are arranged in parallel and spaced apart. The two ends of the multiple individual battery cells are respectively fixed in the corresponding mounting slots on the two integrated brackets. The multiple individual battery cells are connected in series end to end through the busbar assembly.

[0018] Optionally, the multiple individual battery cells are arranged in rows and columns, with the row direction perpendicular to the column direction. The individual battery cells in adjacent rows are staggered and have opposite polarities. The mounting slot group includes multiple mounting slots, and each of the multiple mounting slots corresponds to one of the multiple individual battery cells.

[0019] Another objective of this utility model is to provide a battery pack, including a housing and the aforementioned battery module, wherein the housing has a receiving cavity and the battery module is disposed within the receiving cavity.

[0020] The beneficial effects of this utility model are:

[0021] The integrated CCS assembly provided by this utility model can fix the two ends of multiple individual battery cells respectively through corresponding mounting slots on the first surface of two integrated brackets. This eliminates the need for additional battery cell fixing structures, simplifying the structure and effectively improving production efficiency. Simultaneously, the reduction in the number of parts simplifies the assembly process and lowers material costs. Furthermore, multiple clearance holes are provided on the second surface, each communicating with a mounting slot to avoid the terminals of the individual battery cells. When the two integrated brackets fix the individual battery cells, the bus assembly located on the second surface can be electrically connected to the terminals of the individual battery cells, achieving electrical connection between multiple individual battery cells. Simultaneously, a data acquisition element is located on the side of the bus assembly facing away from the integrated brackets, extending parallel to the second surface and protruding from the integrated brackets to facilitate electrical connection between the bus and the PCBA, thereby achieving voltage acquisition. Attached Figure Description

[0022] 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.

[0023] Figure 1 is a schematic diagram of the battery module provided in an embodiment of the present invention;

[0024] Figure 2 is a side view of the battery module provided in an embodiment of the present invention;

[0025] Figure 3 is an exploded view of the battery module provided in an embodiment of the present invention;

[0026] Figure 4 is an enlarged view of a portion of the structure of the battery module provided in an embodiment of this utility model;

[0027] Figure 5 is a structural schematic diagram of the integrated bracket provided in the embodiment of this utility model from a first-view perspective;

[0028] Figure 6 is a structural schematic diagram of the integrated bracket provided in an embodiment of the present invention from a second perspective.

[0029] In the picture:

[0030] 100. Single battery cell; 101. Positive terminal; 102. Negative terminal; 103. Explosion-proof valve;

[0031] 1. Integrated bracket; 11. First surface; 12. Second surface; 13. Mounting slot assembly; 131. Snap-fit ​​slot; 14. Clearance hole; 15. Pressure relief slot; 151. Pressure relief port; 16. Embedded nut; 17. Steel sleeve;

[0032] 2. Busbar assembly; 21. Positive output busbar; 22. Negative output busbar; 23. Series busbar;

[0033] 3. Collected documents;

[0034] 4. Structural adhesive bonding layer. Detailed Implementation

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] In the description of this utility model, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this utility model, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0043] 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.

[0044] This embodiment provides an integrated CCS module and a battery module. As shown in Figures 1-6, multiple individual battery cells 100 and two of the integrated CCS modules constitute the aforementioned battery module.

[0045] Specifically, as shown in Figures 1, 3, and 4, the integrated CCS assembly includes an integrated bracket 1, a bus assembly 2, and a data acquisition unit 3. Two integrated brackets 1 are arranged parallel and spaced apart. Multiple individual battery cells 100 are fixed at both ends to the two integrated brackets 1, and the multiple individual battery cells 100 are connected in series end-to-end through the bus assembly 2. The data acquisition unit 3 is connected between the bus assembly 2 and the PCBA circuit board to facilitate voltage acquisition.

[0046] Referring again to Figures 1, 3, and 4, the integrated bracket 1 includes a first surface 11 and a second surface 12 disposed opposite to each other. Mounting slots 13 are formed on the first surface 11. The corresponding mounting slots 13 on the first surfaces 11 of the two integrated brackets 1 are configured to fix both ends of multiple individual battery cells 100 respectively. This eliminates the need for additional battery cell fixing structures, allowing for the fixation of multiple individual battery cells 100, simplifying the structure and effectively improving production efficiency. Simultaneously, the reduction in the number of parts simplifies the assembly process and reduces material costs.

[0047] Furthermore, the second surface 12 has multiple clearance holes 14, each of which communicates with the mounting slot assembly 13. These clearance holes 14 are used to avoid the terminals of individual battery cells 100. When the two integrated brackets 1 fix the individual battery cell 100, the bus assembly 2 located on the second surface 12 can be electrically connected to the terminals of the individual battery cell 100, thus achieving electrical connection between multiple individual battery cells 100. Simultaneously, a data acquisition element 3 is positioned on the side of the bus assembly 2 facing away from the integrated brackets 1. The data acquisition element 3 extends parallel to the second surface 12 and protrudes from the integrated brackets 1, facilitating electrical connection between the bus assembly 2 and the PCBA, thereby achieving voltage acquisition.

[0048] It should be noted that the integrated bracket 1 described above has a plate-like structure with a certain thickness. The depth of the mounting groove 13 depends on the thickness of the integrated bracket 1. The deeper the mounting groove 13, the better the fixing effect on the individual battery cell 100. However, as the depth of the mounting groove 13 increases, the difficulty of fixing the individual battery cell 100 also increases, and the heat dissipation effect on the individual battery cell 100 gradually weakens. At the same time, the space occupied increases, which is not conducive to improving the energy density of the battery pack. Those skilled in the art can reasonably select the thickness of the integrated bracket 1 and the depth of the mounting groove 13 according to the actual situation. No limitation is made here, as long as the mounting groove 13 can securely fasten a portion of the end of the individual battery cell 100.

[0049] Referring again to Figures 3 and 4, the mounting slot assembly 13 includes multiple mounting slots 131. A structural adhesive bonding layer 4 is provided between the bottom and / or wall of each mounting slot 131 and a single battery cell 100. Inserting the end of the single battery cell 100 into the mounting slot 131 achieves initial positioning and fixation between the single battery cell 100 and the integrated bracket 1. The structural adhesive bonding layer 4 further secures the single battery cell 100 within the mounting slot 131, ensuring reliable connection between the two.

[0050] Optionally, as shown in Figures 5 and 6, the integrated bracket 1 is rectangular, and its first surface 11 has a length direction and a width direction perpendicular to the length direction. Multiple mounting slots 131 are arranged in rows and columns, with the length direction corresponding to the row direction of the multiple mounting slots 131 and the width direction corresponding to the column direction of the multiple mounting slots 131. Adjacent rows of mounting slots 131 are staggered. This arrangement allows for the creation of as many mounting slots 131 as possible within the limited area of ​​the first surface 11, improving space utilization and thus increasing the energy density of the battery pack. The shape of the mounting slots 131 is the same as the cross-sectional shape of the individual battery cell 100 in the axial direction, so that one end of the individual battery cell 100 can be inserted and mounted in the mounting slot 131.

[0051] Alternatively, as shown in Figures 4-6, a pressure relief groove 15 is provided at the bottom of the mounting slot 131, directly opposite the explosion-proof valve 103 of the individual battery cell 100. The pressure relief groove 15 can prevent the ejected material from the explosion-proof valve 103 from short-circuiting with the busbar assembly 2, thereby improving the safety of the battery pack.

[0052] Furthermore, a pressure relief port 151 is provided on the wall of the pressure relief groove 15 away from the avoidance hole 14, and the pressure relief port 151 penetrates the second surface 12. This arrangement not only connects the pressure relief groove 15 to the outside, thereby enabling the pressure relief groove 15 to be smoothly relieved through the pressure relief port 151, but also helps to dissipate heat from the individual battery cell 100.

[0053] Alternatively, multiple weight-reducing grooves may be provided on the first surface 11 and / or the second surface 12 to reduce the weight of the integrated bracket 1 and facilitate heat dissipation.

[0054] Optionally, the integrated bracket 1 is a one-piece molded structure, specifically a one-piece molded plastic bracket structure with good insulation. The mounting groove 131, pressure relief groove 15, and weight reduction groove are all processed and manufactured simultaneously with the integrated bracket 1 during the molding process, resulting in good structural integrity and high structural strength.

[0055] In this embodiment, multiple individual battery cells 100 are arranged in rows and columns, and each individual battery cell 100 corresponds to a multiple mounting slot 131. The individual battery cells 100 in adjacent rows are staggered and have opposite polarities.

[0056] Referring again to Figures 3 and 4, the bus assembly 2 includes a positive output bus 21, a negative output bus 22, and multiple series-connected bus 23s. One end of the positive output bus 21 is electrically connected to the positive terminal 101 of a single battery cell 100, and the other end is bent and rests against one side of the integrated bracket 1. An embedded nut 16 is pre-embedded at the corresponding position on the integrated bracket 1. The other end of the positive output bus 21 can be connected and fixed to other components through the cooperation of bolts and embedded nuts 16. One end of the negative output bus 22 is electrically connected to the negative terminal 102 of another single battery cell 100, and the other end is bent and rests against the other side of the integrated bracket 1. An embedded nut 16 is also pre-embedded at the corresponding position on the integrated bracket 1. The other end of the negative output bus 22 can also be connected and fixed to other components through the cooperation of bolts and embedded nuts 16. Multiple series busbars 23 are connected in series to the positive terminal 101 and negative terminal 102 of the remaining individual cells 100, thereby realizing the series connection of multiple individual cells 100.

[0057] Optionally, a data acquisition unit 3 is connected to each of the positive output bus 21, the negative output bus 22, and each series bus 23. The multiple data acquisition units 3 protrude from the upper surface of one end of the integrated bracket 1 and are flush with it, so as to facilitate electrical connection with the PCBA circuit board.

[0058] In this embodiment, the collecting element 3 is a brass sheet, which has high strength and good conductivity. The brass sheet is welded together with the positive output bus 21, the negative output bus 22, and the series bus 23, ensuring high connection reliability.

[0059] It should be noted that, in this embodiment, the connection between the positive output bus 21, the negative output bus 22, the multiple series bus 23, and the multiple acquisition components 3 and the second surface 12 is achieved through thermoforming. Specifically, the positive output bus 21, the negative output bus 22, the multiple series bus 23, and the multiple acquisition components 3 are all provided with thermoforming holes, and thermoforming pillars are provided on the second surface 12. The positive output bus 21, the negative output bus 22, the multiple series bus 23, and the multiple acquisition components 3 are respectively positioned in their respective installation positions by engaging with the thermoforming pillars through their respective thermoforming holes; then, the positive output bus 21, the negative output bus 22, the multiple series bus 23, and the multiple acquisition components 3 are completely fixed to the second surface 12 by welding. The hot-melt column can play a positioning role and a foolproof effect during the fixed installation of busbar assembly 2 and acquisition component 3, avoiding the incorrect placement of positive output busbar 21, negative output busbar 22, multiple series busbars 23 and multiple acquisition components 3.

[0060] It is understood that in this embodiment, the integrated CCS module, busbar assembly 2 and collector 3 are both mounted on the second surface 12 of the integrated bracket 1 to form a reliable and simple whole. This allows the integrated CCS module to be supplied as a single unit, which is beneficial for rapid assembly in the battery module production process and reduces the number of parts in the battery module. The first surface 11 of the integrated bracket 1 is used for the installation and fixing of the individual battery cell 100. Simply insert both ends of the individual battery cell 100 into the corresponding set of mounting slots 131 on the two integrated brackets 1 to fix the individual battery cell 100. Finally, the structural adhesive bonding layer 4 connects the individual battery cell 100 and the integrated CCS module to form a complete battery module.

[0061] This embodiment also provides a battery pack, which includes a housing (not shown) and the aforementioned battery module. The housing has a receiving cavity, and the battery module is disposed within the receiving cavity.

[0062] Specifically, the bottom of each of the two integrated brackets 1 is provided with bottom structural adhesive, and the battery module is bonded to the bottom wall of the housing cavity of the box through the bottom structural adhesive to achieve reliable installation of the battery module.

[0063] More specifically, steel sleeves 17 are provided at both ends of the two integrated brackets 1 along their length. The steel sleeves 17 are used to fix the battery module in the box to further ensure the installation stability of the battery module, thereby ensuring the safety of the battery pack.

[0064] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An integrated CCS component, characterized in that, include: An integrated bracket (1) includes a first surface (11) and a second surface (12) disposed opposite to each other. The first surface (11) is provided with mounting slots (13). The corresponding mounting slots (13) on the two integrated brackets (1) are configured to fix the two ends of multiple individual cells (10) respectively. The second surface (12) is provided with multiple clearance holes (14). Each clearance hole (14) is connected to the mounting slots (13). The clearance holes (14) are used to avoid the poles of the individual cells (10). A bus assembly (2) is disposed on the second surface (12) and connected to the poles of the multiple individual cells (10) to electrically connect the multiple individual cells (10). A collection element (3) is disposed on the side of the bus assembly (2) away from the integrated bracket (1) and extends in a direction parallel to the second surface (12) to protrude from the integrated bracket (1).

2. The integrated CCS component according to claim 1, characterized in that, The mounting slot group (13) includes multiple mounting slots (131), and a structural adhesive bonding layer (4) is provided between the bottom and / or wall of each mounting slot (131) and a single battery cell (10).

3. The integrated CCS component according to claim 1, characterized in that, The mounting slot group (13) includes a plurality of snap-fit ​​slots (131). The first surface (11) has a length direction and a width direction perpendicular to the length direction. The plurality of snap-fit ​​slots (131) are arranged in rows and columns. The length direction is parallel to the row direction of the plurality of snap-fit ​​slots (131), and the width direction is parallel to the column direction of the plurality of snap-fit ​​slots (131). The snap-fit ​​slots (131) in adjacent rows are staggered.

4. The integrated CCS component according to any one of claims 1-3, characterized in that, The bus assembly (2) includes a positive output bus (21), a negative output bus (22), and multiple series busbars (23). The positive output bus (21) is electrically connected to the positive terminal (101) of one of the individual cells (10), and the negative output bus (22) is electrically connected to the negative terminal (102) of another individual cell (10). The multiple series busbars (23) are connected in series to the positive terminal (101) and negative terminal (102) of the remaining individual cells (10).

5. The integrated CCS component according to claim 4, characterized in that, Each of the positive output bus (21), the negative output bus (22), and each of the series bus (23) is connected to a collection element (3), and the collection elements (3) protrude from the upper surface of one end of the integrated bracket (1) and are flush with it.

6. The integrated CCS component according to any one of claims 1-3, characterized in that, The mounting slot assembly (13) includes multiple mounting slots (131). A pressure relief slot (15) is provided at the bottom of the mounting slot (131) opposite to the explosion-proof valve (103) of the single cell (10). A pressure relief port (151) is opened on the slot wall of the pressure relief slot (15) away from the avoidance hole (14). The pressure relief port (151) penetrates the second surface (12).

7. The integrated CCS component according to any one of claims 1-3, characterized in that, The integrated bracket (1) is a one-piece molded structure.

8. A battery module, characterized in that, It includes multiple individual battery cells (10) and two integrated CCS assemblies as described in any one of claims 1-7. The two integrated brackets (1) are arranged in parallel and spaced apart. The two ends of the multiple individual battery cells (10) are respectively fixed in the corresponding mounting slots (13) on the two integrated brackets (1). The multiple individual battery cells (10) are connected in series end to end through the bus assembly (2).

9. The battery module according to claim 8, characterized in that, Multiple individual battery cells (10) are arranged in rows and columns, with the row direction perpendicular to the column direction. The individual battery cells (10) in adjacent rows are staggered and have opposite polarities. The mounting slot group (13) includes multiple mounting slots (131), and each of the multiple mounting slots (131) corresponds to one of the multiple individual battery cells (10).

10. A battery pack, characterized in that, It includes a housing and a battery module as described in claim 8 or 9, wherein the housing has a receiving cavity and the battery module is disposed within the receiving cavity.

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