Ccs assembly and battery module

Abstract

The application discloses a CCS assembly and a battery module. The CCS assembly comprises a support structure, a flow guide structure connected to the support structure, an input row, an output row and a connecting row, the input row and the output row being arranged at opposite ends of a plurality of columns of battery cells along a second direction and being electrically connected to a column of battery cells respectively, the connecting row being arranged between the input row and the output row and being used for electrical connection with the battery cells, two FPCs being arranged at opposite sides of the plurality of columns of battery cells along a first direction, each FPC extending along the second direction and being electrically connected to the connecting row respectively, and two connectors being arranged at opposite sides of the plurality of columns of battery cells along the first direction, being electrically connected to one FPC respectively and being correspondingly arranged at one end of a column of battery cells with a gap. The connector in the application does not need to protrude the battery cell along the second direction Y, ensures the installation space of the battery cell in the battery module, can set more battery cells and improves the space utilization.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and in particular to a CCS component and battery module. Background Technology

[0002] In a power battery, a CCS (Computer-Controlled System) module is electrically connected to the battery to enable electrical signal transmission with the BMS (Battery Management System). During installation, the CCS module is mounted on top of the battery and arranged side-by-side along the battery's orientation. The CCS module typically includes a plastic support, an FPC (Flexible Printed Circuit), temperature sensors, voltage sensors, connectors, and electrical connectors. These connectors facilitate information transmission with the BMS to monitor the battery's operating status.

[0003] In existing CCS modules, since the CCS module is arranged along the direction of multiple rows of cells, the plastic bracket needs to extend outward by a certain length when installing the connector to support the connector. This increases the length of the entire CCS module, occupies space within the battery module, and reduces the energy density and space utilization of the battery module. Summary of the Invention

[0004] To address at least one problem existing in the prior art, according to one aspect of the present invention, a CCS assembly is provided, applied to a battery module, the battery module including multiple rows of battery cells, the CCS assembly being disposed on top of the multiple rows of battery cells, the battery cells being arranged in a first direction, and the multiple rows of battery cells being staggered along a second direction, the CCS assembly including: a support structure disposed on top of the multiple rows of battery cells; and a current guiding structure connected to the support structure, including an input row, an output row, and a connecting row, the input row and the output row being disposed at opposite ends of the multiple rows of battery cells along the second direction. Each of the above is electrically connected to a column of the battery cells. The connection array is located between the input array and the output array and is used to electrically connect to the battery cells to realize the series and parallel connection of multiple columns of battery cells. Two FPCs are respectively connected to the support structure and are located on opposite sides of the multiple columns of battery cells along the first direction. Each FPC extends along the second direction and is electrically connected to the connection array. Two connectors are located on opposite sides of the multiple columns of battery cells along the first direction and are electrically connected to one of the FPCs respectively. They are also located at the end of the adjacent column of battery cells in one of the columns that has a notch.

[0005] In this way, when placed on top of the battery cells, since the cells in each row are arranged along the first direction X, and multiple rows of cells are staggered along the second direction Y, there is a gap between each pair of adjacent rows of cells along the first direction X. When setting up the CCS assembly, placing the connector along the first direction X at the end of the row of cells allows the connector to be installed within the gap formed by a certain row of cells, making full use of the space in the gap. Therefore, the support frame does not need to protrude along the arrangement direction of the multiple rows of cells, and the connector does not need to occupy more space along the arrangement direction of the multiple rows of cells, that is, it does not need to protrude from the cells along the second direction Y, thus ensuring the length of the entire CCS assembly. When applied to the battery module, it does not occupy too much space within the battery module, allowing more cells to be set up, improving space utilization, and ensuring the energy density of the battery module.

[0006] In some embodiments, the support structure includes a heat-pressed film and two spaced-apart support frames, the two support frames being disposed on opposite sides of the plurality of rows of battery cells along a first direction, and the heat-pressed film being connected between the two support frames.

[0007] In some embodiments, the support frame has a plurality of first clearance openings on the side facing the battery cell, the shape of the first clearance openings being adapted to the shape of the battery cell so that the support frame can fit against the surface of the battery cell.

[0008] In some embodiments, the hot-pressed film includes an upper film and a lower film, the FPC and the flow guiding structure are disposed between the upper film and the lower film, and the flow guiding structure can be exposed relative to the upper film and the lower film.

[0009] In some embodiments, the connector is attached to the side of the FPC facing the battery array and is positioned corresponding to the notch.

[0010] In some embodiments, the support frame has a mounting port on the side opposite to the battery cell along a first direction, the mounting port being provided corresponding to the notched battery cell, and the connector being disposed within the mounting port.

[0011] In some embodiments, the connecting row includes a plurality of sub-rows arranged in parallel along a second direction, each of the sub-rows being connected in series with each two adjacent cells arranged alternately along the second direction, and in parallel with each two adjacent columns of cells.

[0012] In some embodiments, the sub-bar includes a main connecting rib and a plurality of conductive segments. The main connecting rib extends in the first direction, and the plurality of conductive segments are connected in parallel to the main connecting rib along the first direction. The main connecting rib is connected to the positive electrode of the battery cell, and the conductive segments are connected to the negative electrode of the battery cell.

[0013] In some embodiments, the main connecting rib has a protruding section at at least one end along the first direction, the protruding section being used to connect with the FPC.

[0014] In some embodiments, the main connecting rib has protruding sections at both ends along the first direction, one of the protruding sections is used to connect with one of the FPCs, and the other FPC is provided with a third clearance opening corresponding to the other protruding section.

[0015] In another aspect, the present invention provides a battery module including the CCS component described above. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the battery module structure according to an embodiment of the present invention; Figure 2 for Figure 1 An exploded view of the battery module in the diagram; Figure 3 for Figure 1 A schematic diagram of the battery module with its connector hidden. Figure 4 for Figure 1 A top view of the battery module in the middle; Figure 5 for Figure 1 An exploded view of the hot-pressed film, FPC, and connectors in the process; Figure 6 for Figure 1 A schematic diagram of the support frame in the diagram; Figure 7 for Figure 1 An exploded view of the FPC, reinforcing plate, and connectors in the diagram; Figure 8 for Figure 1 A schematic diagram of the structure of the battery cell and sub-bar; Figure 9 for Figure 7 A top view of the battery cells and sub-bars; Figure 10 for Figure 7 A schematic diagram of the sub-row structure in the diagram; Figure 11 This is a schematic diagram of the battery cell structure according to an embodiment of the present invention.

[0017] The meanings of the reference numerals in the attached figures are as follows: 100-CCS assembly, 10-Support structure, 11-Hot-press film, 111-Upper film, 112-Lower film, 113-Shaped hole, 12-Support frame, 121-First clearance opening, 122-Hot riveting post, 123-Mounting port, 20-Flow guiding structure, 21-Input row, 211-Input electrode, 22-Output row, 221-Output electrode, 23-Connecting row, 231-Sub-row, 2311 - Main connecting rib, 2312 - Conductive section, 2313 - Current limiting hole, 2314 - Second clearance opening, 2315 - Protruding section, 30 - FPC, 31 - Third clearance opening, 40 - Connector, 50 - Reinforcing plate, 200 - Battery module, 210 - Cell row, 220 - First cell row, 230 - Second cell row, 232 - Notch, 300 - Cell, 310 - Positive electrode, 320 - Housing. Detailed Implementation

[0018] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 invention.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Please see Figures 1 to 11 The CCS assembly 100 provided in this embodiment of the invention includes a support structure 10, a current-guiding structure 20, two FPCs 30, and two connectors 40. When the CCS assembly 100 is applied to a battery module 200, the battery module 200 includes multiple rows of battery cells 300, and the CCS assembly 100 is disposed on top of the multiple rows of battery cells 300. The battery cells 300 are arranged along a first direction X, and the multiple rows of battery cells 300 are staggered along a second direction Y. Specifically, the battery cells in this embodiment are cylindrical cells.

[0023] Please refer to Figures 1 to 4The support structure 10 is located on top of the multi-row battery cells 300. The current guiding structure 20 is connected to the support structure 10 and includes an input row 21, an output row 22, and a connecting row 23. The input row 21 and the output row 22 are located at opposite ends of the multi-row battery cells 300 along the second direction Y, and are used to electrically connect with one row of battery cells 300 respectively. The connecting row 23 is located between the input row 21 and the output row 22 and is used to electrically connect with the battery cells 300 to realize the series and parallel connection of the multi-row battery cells 300. Two FPCs 30 are respectively connected to the support structure 10 and are located on opposite sides of the multi-row battery cells 300 along the first direction X. Each FPC 30 extends along the second direction Y and is electrically connected to the connecting row 23. Two connectors 40 are located on opposite sides of the multi-row battery cells 300 along the first direction X and are electrically connected to one FPC 30 respectively. They are located at the end of one row of battery cells 300 that has a notch relative to the adjacent row of battery cells 300.

[0024] When the aforementioned CCS assembly 100 is disposed on top of the battery cells 300, since the battery cells 300 in each row of battery cells 300 are arranged along the first direction X, and multiple rows of battery cells 300 are staggered along the second direction Y, there is a gap 232 between each row of battery cells 300 and the adjacent row of battery cells 300 at the end of each pair of adjacent rows of battery cells 300 along the first direction X. When the CCS assembly 100 is disposed, the connector 40 is disposed at the end of the row of battery cells 300 along the first direction X, so that the connector 40 can be installed in the row of battery cells 300. Within the notch 232, the space of the notch 232 of the cell 300 is fully utilized. Therefore, the support frame 12 does not need to protrude along the arrangement direction of the multiple rows of cells 300, and the connector 40 does not need to occupy more space along the arrangement direction of the multiple rows of cells 300. That is, it does not need to protrude the cell 300 along the second direction Y, thereby ensuring the length of the entire CCS module 100. When applied to the battery module 200, it does not occupy too much space in the battery module 200, allowing more cells 300 to be set, improving space utilization, and ensuring the energy density of the battery module 200.

[0025] Please see Figure 5 and Figure 6 In one embodiment of the present invention, in order to facilitate the molding of the support structure 10, the support structure 10 includes a hot-pressing film 11 and two separately arranged support frames 12. The two support frames 12 are arranged on opposite sides of the multi-row battery cells 300 along the first direction X, and the hot-pressing film 11 is connected between the two support frames 12. Thus, by setting the support structure 10 to include separate support frames 12 and hot-pressing film 11, the following beneficial effects are achieved: (1) When the support structure 10 is set, the two support frames 12 can be clamped on the opposite sides of the multi-row battery cells 300 along the first direction X, which facilitates the positioning and installation of the battery cells 300. This avoids the problem of interference in the assembly of CCS component 100 and battery cells 300 caused by excessive positioning of the plastic bracket and battery cells 300 due to the tolerance of the stacking of battery cells 300 and the manufacturing tolerance of an integral plastic bracket. This improves the assembly efficiency of CCS component 100 and battery cells 300 and increases the product yield. (2) When the battery cell 300 expands during use, the hot-pressing film 11, due to its certain softness, can absorb the expansion; (3) Setting two separate support frames 12 facilitates the demolding and forming of each support frame 12, which reduces the production cost of the support frame 12 compared to a single plastic frame.

[0026] Specifically, in order to enable the two support frames 12 to have a better clamping effect on the battery cell 300, when setting the support frame 12, a plurality of first clearance openings 121 are provided on the side of the support frame 12 facing the battery cell 300. The shape of the first clearance opening 121 is adapted to the shape of the battery cell 300 so that the support frame 12 can fit against the surface of the battery cell 300. Thus, by setting the first clearance openings 121 on the support frame 12, when the support frame 12 is set along the first direction X on the side of the battery cell 300, the support frame 12 can fit against the side of the battery cell 300 along the axial direction of the battery cell 300. The support frames 12 on both sides clamp the intersecting battery cells 300 on both sides along the first direction X. When the entire CCS assembly 100 is installed on top of the battery cell 300, the first clearance openings 121 play a role in positioning the battery cell 300, which facilitates the installation of the CCS assembly 100 and the battery cell 300.

[0027] Understandably, since the battery cells 300 are staggered along the second direction Y, for ease of description, two adjacent columns of battery cells 300 are selected for description, and these two adjacent columns of battery cells 300 are defined as the first column of battery cells 220 and the second column of battery cells 230, as follows. Figures 1 to 3 As shown, at one end along the first direction X, the first cell array 220 protrudes from the second cell array 230. The second cell array 230 has a notch 232 relative to the first cell array 220. When the support frame 12 is set along the first direction X, it has a first clearance opening 121 corresponding to the protruding first cell array 220. In this way, it can be installed and adapted to the interleaved cell array 300 so as to be clamped on the opposite sides of the multiple cell array 300.

[0028] Specifically, the support frame 12 in this embodiment is a PC+ABS composite material. PC+ABS composite material has excellent heat and weather resistance, dimensional stability and impact resistance, so it can be used in the support structure 10 of CCS component 100.

[0029] Please refer to Figure 5 In order to ensure the insulation and protection of FPC30 and flow guiding structure 20 when the support structure 10 is installed with FPC30 and flow guiding structure 20, and to ensure the support strength of the entire support structure 10, the hot press film 11 includes an upper film 111 and a lower film 112. FPC30 is disposed between the upper film 111 and the lower film 112, and the flow guiding structure 20 can be exposed relative to the upper film 111 and the lower film 112, so that the upper film 111 and the lower film 112 can provide insulation support and protection for FPC30 and flow guiding structure 20, and ensure the structural strength of the entire hot press film 11.

[0030] Specifically, in this embodiment, both the upper film 111 and the lower film 112 are PC films, while in other embodiments, the upper film 111 and the lower film 112 can be PET films.

[0031] When the flow guiding structure 20 is exposed between the upper membrane 111 and the lower membrane 112, the upper membrane 111 and the lower membrane 112 are respectively provided with contoured holes 113, so that the part of the flow guiding structure 20 that needs to be welded and connected by the battery cell 300 is exposed through the contoured holes 113.

[0032] Further, please refer to Figure 6 When connecting the support frame 12 and the hot-pressing film 11, the support frame 12 is provided with hot riveting posts 122. Both the support frame 12 and the hot-pressing film 11 are connected to the support frame 12 through the hot riveting posts 122. Thus, when connecting the hot-pressing film 11 and the support frame 12, the hot riveting posts 122 are used for positioning first, and then the support frame 12 and the hot-pressing film 11 are connected into a whole through the hot riveting posts 122. That is, the support frame 12 is connected to the upper film 111 and the lower film 112 respectively to form a whole, ensuring the connection stability of the support frame 12 with the upper film 111 and the lower film 112 respectively.

[0033] Please see Figures 1 to 4 as well as Figure 7When connecting the connector 40 to the FPC30, in order to avoid the connector 40 occupying the top space of the cell 300, the connector 40 is connected to the side of the FPC30 facing the cell 300 and is set corresponding to the notch 232. In this way, the connector 40 is placed upside down on one side of the FPC30, making full use of the space at the end of the cell 300 along the first direction X. It can be set parallel to the cell 300 along the first direction X, avoiding the space occupied along the axial direction of the cell 300 when it is set on the top of the FPC30, thus increasing the height of the CCS component 100 when it is applied to the battery module 200.

[0034] Furthermore, in order to increase the connection strength of the connector 40 mounted on the FPC30, a reinforcing plate 50 is provided between the connector 40 and the FPC30. Specifically, it is made of FR-4 grade fire-resistant material and is bonded to the FPC30 so that when connected with the support frame 12, it can be hot-pressed to be fixed to the hot riveting post 122 through the reinforcing plate 50.

[0035] In this embodiment, the FPC30 implements circuit traces through an etching process. The FPC30 is directly soldered to the connector 23. Local nickel plating is performed at the solder joint between the FPC30 and the connector 23. The voltage signal is collected through the FPC30 and connected to the low-voltage connector 40 to output voltage signals through the connector 40.

[0036] Further, please refer to Figures 1 to 4 as well as Figure 6 In order to make reasonable use of the remaining space generated when the battery cells 300 are arranged, the support frame 12 is provided with a mounting port 123 on the side opposite to the battery cells 300 along the first direction X. The mounting port 123 is set to correspond to the notch 232 formed by the column where the battery cells 300 are located. The connector 40 is located in the mounting port 123. In this way, the staggered remaining space formed when the battery cells 300 are arranged is fully utilized, and the mounting of the connector 40 along the first direction X is avoided from protruding from the support frame 12 and occupying space.

[0037] Specifically, during the molding of the CCS module 100 in this embodiment, the FPC 30 and the flow guiding structure 20 are arranged in parallel between the upper membrane 111 and the lower membrane 112. The FPC 30 and the flow guiding structure 20 are hot-pressed into a whole by the upper membrane 111 and the lower membrane 112. Through holes with hot riveting posts 122 are provided in the FPC 30, the upper membrane 111 and the lower membrane 112 respectively. The whole is then riveted to the support frame 12, thereby installing it into a CCS module 100.

[0038] Please see Figures 1 to 5 as well as Figure 8 and Figure 9In one embodiment of the present invention, corresponding to the extension of FPC30 in the second direction Y, the connecting row 23 includes a plurality of sub-rows 231 arranged in parallel along the second direction Y. Each sub-row 231 is connected in series with each two adjacent cells 300 arranged alternately along the second direction Y, and in parallel with each two adjacent columns of cells 300. In this way, the series and parallel connection of multiple cells 300 are realized through the multiple sub-rows 231.

[0039] Specifically, please refer to Figures 8 to 10 The sub-bar 231 includes a main connecting rib 2311 and multiple conductive segments 2312. The multiple conductive segments 2312 are connected in parallel to the main connecting rib 2311 along a first direction X. The main connecting rib 2311 extends in the first direction X and is connected to the positive electrode 310 of the battery cell 300. The conductive segments 2312 are connected to the negative electrode of the battery cell 300. Thus, through the multiple conductive segments 2312, the end of each conductive segment 2312 away from the main connecting rib 2311 is electrically connected to the negative electrode of the battery cell 300, and the current flows through it. When flowing in the series direction, the current flows from the conductive segment 2312 to the main connecting rib 2311. The main connecting rib 2311 is electrically connected to the positive electrode 310 of the cell 300. The current can flow from the positive electrode 310 of a single cell 300 to the negative electrode. In this way, the series connection of multiple cells 300 arranged alternately in the second direction Y is realized. Since the main connecting rib 2311 extends in the first direction X, multiple conductive segments 2312 are connected in parallel on the main connecting rib 2311, thereby realizing the parallel connection of multiple cells 300.

[0040] Understandably, since the conductive segment 2312 needs to connect the positive electrodes 310 of the two cells 300 arranged in series with staggered phases, the conductive segment 2312 and the main connecting rib 2311 have an acute angle to match the arrangement of the cells 300 connected in series.

[0041] Furthermore, since each pair of adjacent three cells 300 needs to be connected to two sub-bars 231, the orientation of the conductive segment 2312 connected to the negative terminal in each pair of adjacent sub-bars 231 is opposite. That is, the opening between the conductive segment 2312 and the main connecting rib 2311 of one sub-bar 231 faces one end of the first direction X, and the opening between the conductive segment 2312 and the main connecting rib 2311 of the other sub-bar 231 faces the other end of the first direction X. This avoids the situation of incorrect placement when connecting the sub-bars 231 and the cells 300, and has the effect of preventing mistakes.

[0042] Specifically, since the positive terminal of cell 300 is positive 310, the main connecting rib 2311 is connected to the positive terminal of cell 300, and the conductive section 2312 is connected to the negative terminal. For details, please refer to [link to relevant documentation]. Figure 11 The diagram shows the structure of the battery cell 300. Since the casing 320 of the battery cell 300 is negatively charged, the conductive section 2312 and the casing 320 of the battery cell 300 are electrically connected.

[0043] In this embodiment, since the conductive segment 2312 has a certain length and elasticity, when welding the sub-bar 231 and the housing 320 of the cell 300, the conductive segment 2312 can be directly pressed down towards the housing 320 to connect the conductive segment 2312 and the housing 320. This avoids the process of bending the conductive segment 2312 to form a height difference to accommodate the height difference between the positive and negative poles of the cell 300, thus improving the product yield and reducing the production cost.

[0044] Since the conductive segment 2312 is connected to the negative terminal of the battery cell 300, the positive terminal 310 of the battery cell 300 needs to be avoided. In order to allow the conductive segment 2312 to have a larger connection area with the negatively charged housing 320, the conductive segment 2312 is provided with a second avoidance opening 2314. The second avoidance opening 2314 is set in an arc shape to avoid the positive terminal post, so that the conductive segment 2312 can make more contact welding with the negatively charged housing 320, ensuring the connection stability between the conductive segment 2312 and the negative terminal.

[0045] In this embodiment, the sub-bar 231 is an aluminum bar, specifically AL1060 O-state aluminum. This material has excellent conductivity, ductility, and stability, thus enabling stable current conduction between it and the battery cell 300.

[0046] Furthermore, in order to protect the battery module 200 during use, a fusible protection structure is provided on the conductive section 2312. The fusible protection structure includes at least one current-limiting hole 2313 opened on the conductive section 2312. One or more current-limiting holes 2313 can be set according to actual needs. By setting the current-limiting hole 2313, the conductive area of ​​the conductive section 2312 in the current flow direction is reduced. When the current in the circuit is too large, that is, when the circuit is overloaded, the conductive section 2312 can be disconnected at high temperature to protect the circuit and improve the safety performance of the entire battery module 200.

[0047] Please see Figure 4 as well as Figures 8 to 10In one embodiment of the present invention, in order to facilitate the welding connection between the connecting bar 23 and the FPC30, at least one end of the main connecting bar 2311 along the first direction X is provided with a protruding section 2315. The protruding section 2315 is used to connect with the FPC30, that is, the protruding section 2315 corresponding to the notch 232 formed in the cell 300 is connected to the FPC30. In this way, when connecting the FPC30 and the sub-bar 231, nickel is directly plated on the FPC30, and the welding connection is made through the nickel plating point and the protruding section 2315 of the main connecting bar 2311. Compared with the prior art, which requires welding nickel sheets to the aluminum bar and then welding the nickel sheets to the FPC30, the connection efficiency of the FPC30 and the sub-bar 231 is improved, and the welding operation of the FPC30 and the sub-bar 231 is more convenient.

[0048] Furthermore, during voltage acquisition, since only one end of the main connecting rib 2311 needs to be welded to the FPC 30, to reduce the production cost of the sub-bar 231, both ends of the main connecting rib 2311 along the first direction X are provided with protruding sections 2315. One protruding section 2315 is used to connect with one FPC 30, and the other FPC 30 is provided with a third clearance opening 31 corresponding to the other section 2315. In this way, when producing the sub-bar 231, the same mold can be used to obtain a base material of the same length extending along the first direction X, and then the base material can be molded into the specific structure of the sub-bar 231, so as to facilitate the production of the entire sub-bar 231. Thus, during voltage acquisition, by providing a third clearance opening 31 on the FPC 30 to avoid one protruding section 2315, the connection between the FPC 30 and the sub-bar 231 is achieved. When acquiring voltage, the voltage information is transmitted to the FPC 30 through the protruding section 2315 connected to the FPC 30.

[0049] Understandably, the third clearance 31 on the FPC30 corresponds to the first clearance 121 on the support frame 12.

[0050] Please refer to Figures 1 to 5 In this embodiment, the input row 21 has an input pole 211 and the output row 22 has an output pole 221. Both the input pole 211 and the output pole 221 are used to connect to external circuits. The input row 21 is connected to a row of cells 300 arranged along the second direction Y at one end, and one of the cells 300 in the row is the current input terminal. The output pole 221 is connected to a row of cells 300 arranged along the second direction Y at the other end, and one of the cells 300 in the row opposite to the input terminal and located at the end is the output terminal, so as to realize the conduction of current and can transmit the voltage status of the cells 300 to the BMS system through the connector 40.

[0051] Understandably, when the input row 21 is connected to the positive terminal 310 of a row of cells 300 located at one end in the second direction Y, the output row 22 is connected to the housing 320 of the cells 300.

[0052] In a second embodiment, the present invention also provides a battery module 200, including the aforementioned CCS component 100 and a plurality of battery cells 300.

[0053] The CCS is located on top of multiple battery cells 300 and connected to them. During discharge, current enters from the input terminal 211 and is transmitted to one of the input cells 300. From the cell 300, the current is conducted to the sub-bar 231, and then the sub-bar 231 conducts the current between the cells 300, achieving series connection between them. The input bar 21 and the output bar 22 achieve parallel connection between multiple cells 300. Finally, the current is conducted from the output cell 300 to the output terminal 221, achieving current conduction. During charging, the current flows in the opposite direction.

[0054] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A CCS assembly, applied to a battery module, the battery module comprising multiple rows of battery cells, the CCS assembly disposed on top of the multiple rows of battery cells, the battery cells being arranged in a first direction, and the multiple rows of battery cells being staggered along a second direction, characterized in that, The CCS component includes: A support structure is disposed on top of the multiple rows of battery cells. The support structure includes a hot-pressing film and two spaced-apart support frames. The two support frames are disposed on opposite sides of the multiple rows of battery cells along a first direction. The hot-pressing film is connected between the two support frames. A current-guiding structure, connected to the supporting structure, includes an input row, an output row, and a connecting row. The input row and the output row are disposed at opposite ends of the multiple rows of battery cells along the second direction and are electrically connected to one row of battery cells respectively. The connecting row is disposed between the input row and the output row and is used to electrically connect with the battery cells to realize the series and parallel connection of the multiple rows of battery cells. Two FPCs are respectively connected to the support structure and are arranged on opposite sides of the multiple rows of cells along the first direction. Each FPC extends along the second direction and is respectively connected to the connecting bus. Two connectors are disposed on opposite sides of the multiple rows of battery cells along a first direction, respectively electrically connected to an FPC, and correspondingly disposed at the end of a battery cell in an adjacent row of battery cells with a notch. The connectors are connected to the side of the FPC facing the battery cell. The support frame is provided with an installation port on the side away from the battery cell along the first direction. The installation port is provided corresponding to the notched battery cell, and the connectors are disposed in the installation port.

2. The CCS component according to claim 1, characterized in that, The support frame has a plurality of first clearance openings on the side facing the battery cell. The shape of the first clearance openings is adapted to the shape of the battery cell so that the support frame can fit against the surface of the battery cell.

3. The CCS component according to claim 1, characterized in that, The hot-pressed film includes an upper film and a lower film, the FPC and the flow guiding structure are disposed between the upper film and the lower film, and the flow guiding structure can be exposed relative to the upper film and the lower film.

4. The CCS component according to any one of claims 1-3, characterized in that, The connecting row includes multiple sub-rows arranged in parallel along the second direction. Each sub-row is connected in series with every two adjacent cells arranged alternately along the second direction, and in parallel with every two adjacent columns of cells.

5. The CCS component according to claim 4, characterized in that, The sub-bar includes a main connecting rib and multiple conductive segments. The main connecting rib extends in the first direction, and the multiple conductive segments are connected in parallel to the main connecting rib along the first direction. The main connecting rib is connected to the positive electrode of the battery cell, and the conductive segments are connected to the negative electrode of the battery cell.

6. The CCS component according to claim 5, characterized in that, The main connecting rib has a protruding section at at least one end along the first direction, and the protruding section is used to connect with the FPC.

7. The CCS component according to claim 6, characterized in that, The main connecting rib has protruding sections at both ends along the first direction. One of the protruding sections is used to connect with one of the FPCs, and the other FPC is provided with a third clearance opening corresponding to the other protruding section.

8. A battery module, characterized in that, Includes the CCS component as described in any one of claims 1-7.

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