Assembly for integrated CCS

Abstract

The utility model discloses an assembly for integrated CCS, comprising a plastic uptake plate and a cover plate, the front side of the plastic uptake plate is provided with two wiring grooves, a raised line and two rows of connecting plate mounting grooves, the two wiring grooves are arranged between the two rows of connecting plate mounting grooves, the raised line is arranged between the two wiring grooves to separate the two wiring grooves, and the cover plate is arranged on the plastic uptake plate. Each wiring groove is communicated with an adjacent row of connecting plate mounting grooves; the back of the cover plate is at least provided with back glue at the position corresponding to the top surface of the raised line, and the cover plate is clamped with the plastic uptake plate and is attached to the top surface of the raised line through the back glue to cover the raised line and the two wiring grooves. Compared with a traditional middle centralized flat cable structure, the plastic uptake plate of the assembly for the integrated CCS has the advantages that the same-side and same-path layout is carried out on the acquisition lines of the pole columns on the same side, the wiring harness trend is cleared structurally, and rapid installation, overhaul and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of CCS, and particularly relates to a component for integrating CCS. Background Art

[0002] The CCS component is used in the field of electrochemical energy storage. Taking lithium-ion batteries as an example for electrochemical energy storage, the smallest unit is the battery cell, followed by a module composed of multiple battery cells, and the CCS component is a common and key component of the battery module.

[0003] As a clean and efficient new energy, electrochemical energy storage has a wide range of uses, such as energy storage for various means of transportation, standby energy or main energy sources for various power plants, factories, commercial buildings, scientific research, etc.; in the face of the usage requirements of working conditions in different scenarios, when making an energy design plan, several single battery cells are connected in series and parallel as needed to form a battery module, and then several battery modules are integrated with various electrical components into an energy storage box to form a battery pack for the convenience of users.

[0004] The so-called energy storage CCS component (integrated busbar Cells Contact System) is mainly composed of signal acquisition components (for example: FPC, FFC, PCB, etc.), copper-aluminum busbars, plastic structural parts, etc. It is integrated into a whole through processes such as riveting or hot pressing to achieve functions such as high-voltage series and parallel connection of battery cells, voltage sampling of battery cells, and temperature sampling of batteries. The voltage and temperature are collected by the FPC / FFC / PCB and connector components and given to the BMS battery control system.

[0005] Taking existing lithium batteries as an example for electrochemical energy storage, in a lithium battery module, the CCS component is a very important part of the module design. Usually, the voltage acquisition lines and temperature acquisition wire harnesses of the battery cells on the module are connected to the surface of the aluminum busbar. When there are more battery cells in the module, there are also more voltage acquisition points and temperature acquisition points on the module. In the limited space at the top of the module, a large number of acquisition wire harnesses will be stacked. In the face of this situation, PCB boards and FPC boards are mainly used for integration and optimization. Although the PCB boards and FPC boards greatly simplify the voltage acquisition lines and temperature acquisition lines of the module battery cells, the manufacturing process is complex and the manufacturing cost also increases significantly.

[0006] If the PCB board or FPC board is not used to integrate and optimize the module acquisition lines and acquisition points, and traditional multiple acquisition wire harnesses are used for integration, problems such as how to securely fix the acquisition wire harnesses on the top surface of the entire module; how to neatly and beautifully layout the acquisition lines; how to avoid the wire harnesses occupying the space above the explosion-proof valve of each battery cell, and how to quickly identify which acquisition wire is faulty during after-sales maintenance for quick troubleshooting, identification, and replacement will be faced. Summary of the Utility Model

[0007] In view of the deficiencies in the prior art, the utility model provides a component for integrating CCS. The CCS component using the component is convenient for sorting out the collection harness, can avoid the accumulation of the collection harness, and is convenient for maintenance of the CCS component.

[0008] In order to achieve the above object, the utility model is realized by the following technical solutions:

[0009] A component for integrated CCS includes a blister plate and a cover plate. The blister plate is provided with two wiring grooves, a convex strip and two rows of connection plate mounting grooves on the front side. The two wiring grooves are located between the two rows of connection plate mounting grooves. The convex strip is located between the two wiring grooves to separate the two wiring grooves. Each wiring groove is connected with an adjacent row of connection plate mounting grooves. The back side of the cover plate is provided with adhesive at least at the position corresponding to the top surface of the convex strip. The cover plate is clamped with the blister plate and adhered to the top surface of the convex strip through the adhesive to cover the convex strip and the two wiring grooves.

[0010] Furthermore, the wiring trough is separated from an adjacent row of connection plate mounting slots by a blocking bar, and the blocking bar is provided with a notch at a position corresponding to each connection plate mounting slot for connecting the connection plate mounting slot to the wiring trough.

[0011] Furthermore, two rows of card slots are provided on the blister board, and the two rows of card slots are respectively arranged on the baffles on both sides of the convex strips. The cover plate has buckles on both sides that are perpendicular to the bottom surface of the blister board. The buckles and the card slots cooperate to fix the cover plate on the blister board. The convex strip and the cover plate are both provided with explosion-proof valve clearance holes through which the explosion-proof valve of the power core passes.

[0012] Furthermore, the fastening directions of the buckles at both ends of the cover plate in the length direction are arranged in opposite directions.

[0013] Furthermore, the retaining strips and the convex strips are formed by depressions on the back of the blister board, and adjacent connecting plate installation grooves in the same row are isolated by groove walls of the connecting plate installation grooves.

[0014] Furthermore, each wiring trough is provided with a plurality of cable tying seats, the middle portion of the top surface of the cable tying seat is concave to form a wiring harness trough, the top surface of the cable tying seat is provided with wire holes on both sides of the wiring harness trough for cable ties to pass through, and the height of the back of the wiring harness trough is higher than the height of the back of the wiring trough.

[0015] Furthermore, the connection plate installation groove is provided with a locking protrusion on at least two groove walls in the length direction, the top surface of the locking protrusion is inclined downward in the direction away from the groove wall where the locking protrusion is located, and the bottom surface of the locking protrusion is inclined upward in the direction away from the groove wall where the locking protrusion is located.

[0016] Furthermore, at least two positioning posts are provided at the bottom of the connecting plate installation slot for cooperating with at least two positioning holes on the connecting plate for positioning.

[0017] The utility model has the following beneficial effects:

[0018] Compared with the traditional intermediate centralized wire arrangement structure, the plastic suction board of the components for the integrated CCS of the present utility model makes a same-side and same-circuit layout for the collection wires of the same-side pole columns. Structurally, it clarifies the wire harness routing, facilitating quick installation, inspection, and maintenance. Two collection wire harness grooves (wire routing grooves) are made on the plastic suction board to avoid the explosion-proof space required for the explosion-proof valve of the battery cell, preventing the risk of explosion-proof failure easily caused by the wire harness piling up on the protective film of the battery cell explosion-proof valve; at the same time, it also avoids the stacking and pressing of the wire harness, which may cause the protective film of the battery cell explosion-proof valve to fall off or be damaged, making the battery cell explosion-proof valve lose its outermost layer of protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the CCS component according to an embodiment of the present utility model;

[0020] Figure 2 is Figure 1 a view of the CCS component after removing the cover plate;

[0021] Figure 3 is a schematic structural diagram of the plastic suction board according to an embodiment of the present utility model;

[0022] Figure 4 is Figure 3 another view of the plastic suction board;

[0023] Figure 5 is a schematic structural diagram of the cover plate according to an embodiment of the present utility model;

[0024] Figure 6 is Figure 5 another view of the cover plate;

[0025] Figure 7 is a schematic diagram of the nickel sheet and the connecting plate;

[0026] Figure 8 is Figure 3 an enlarged view of part A in

[0027] Figure 9 is Figure 4 an enlarged view of part B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] As Figures 1 to 9 shown, a component for integrating CCS includes a plastic suction board and a cover board. In a specific structure, the plastic suction board 1 of this embodiment has two wire grooves 4, a rib 5, and two rows of connecting plate mounting grooves 6 on the front surface. The two wire grooves 4 are located between the two rows of connecting plate mounting grooves 6, and the rib 5 is located between the two wire grooves 4 to separate the two wire grooves 4. The rib 5 and the two wire grooves 4 both extend along the length direction of the plastic suction board 1. A row of explosion-proof valve relief holes 51 for the explosion-proof valves of the battery cores to pass through is provided on the rib 5. Each wire groove 4 is provided with several wire tying seats 7, and each row of connecting plate mounting grooves 6 has several connecting plate mounting grooves 6. The wire groove 4 is separated from the adjacent entire row of connecting plate mounting grooves 6 by a retaining strip 11, and the retaining strip 11 is provided with a notch for the connecting plate mounting groove 6 to communicate with the wire groove 4 at the position corresponding to each connecting plate mounting groove 6. Compared with the traditional middle centralized wire arrangement, the plastic suction board 1 of this embodiment makes a same-side and same-path layout for the collection lines of the same-side pole columns, which clarifies the wire harness routing from the structure and is convenient for quick installation, maintenance, and repair.

[0031] In a specific structure, the retaining strip 11 is provided with a notch for the connecting plate mounting groove 6 to communicate with the wire groove 4 at the position corresponding to each connecting plate mounting groove 6, that is, the groove wall of the connecting plate mounting groove 6 is hollowed out in the direction towards the inner side of the battery core, and the metal joint of the signal collection line is connected to the connecting plate from the notch. The electrical signal collection is placed on one side of the battery module, which is not only convenient for electrical connection but also increases the utilization rate of the wiring space.

[0032] In a specific structure, preferably, there is a certain distance between each end of the rib 5 in the length direction and the end face of the same end of the plastic suction board 1, that is, the length of the rib 5 is shorter than the total length of the plastic suction board 1, which is convenient for the wire harnesses in the two wire grooves 4 to merge into one bundle at the end of the rib 5. Preferably, the two ends of the rib 5 are provided with arc end faces to avoid scratching the wire harness.

[0033] In a specific structure, the back surface of the plastic suction board 1 is concave at the position of the wire tying seat 7, and the concave part forms the wire tying seat 7 on the front surface of the plastic suction board 1. Preferably, the top surfaces of the rib 5 and the retaining strip 11 are the top surface of the plastic suction board 1, and such a design can simplify the mold for manufacturing the plastic suction board 1. On the front surface of the plastic suction board 1, the wire tying seat 7 protrudes relative to the wire groove 4 and its height is lower than that of the rib 5 and the retaining strip 11, that is, the wire tying seat 7 does not increase the height of the plastic suction board 1.

[0034] A depression is formed in the middle of the top surface of the wire tie base 7 to form a wire harness groove 71. On both sides of the wire harness groove 71 on the top surface of the wire tie base 7, wire passing holes 72 are provided for the wire ties to pass through. The structural design of adding the wire tie base 7 at the bottom of the plastic suction plate 1 can not only bundle the acquisition wire harness in this side direction on the wire tie base 7, but also the layout of multiple wire tie bases 7 can strengthen the strength of the plastic suction plate 1.

[0035] The back surface of the wire routing groove 4 is the same as the back surface of the plastic suction plate 1 and they are in the same plane. Preferably, the height of the back surface of the wire harness groove 71 is higher than the height of the back surface of the wire routing groove 4, and the height difference between the back surface of the wire harness groove 71 and the back surface of the wire routing groove 4 is not less than the thickness of the wire tie, so that after adding the wire tie, the wire tie does not protrude from the back surface of the plastic suction plate 1, which is neat and beautiful.

[0036] The specific shape of the wire harness groove 71 is not limited and can have various shapes. For example, it can be an arc-shaped groove, a square groove, an elliptical groove with a notch, etc. In this embodiment, the wire harness groove 71 is preferably an arc-shaped groove (the arc-shaped groove should be understood in a broad sense, including circular arc grooves, elliptical arc grooves, etc.). The bottom height of the arc-shaped groove does not affect the wire tie of the wire harness passing through the two wire passing holes 72 on the wire tie base 7. The arc-shaped groove is easy to be formed by plastic suction and demolded, and the wire harness is tied into a bundle with a wire tie. The design of the arc-shaped groove is more in line with the shape of the tied wire harness, making the wire harness more concentrated.

[0037] As a better solution, the wire tie base 7 has the same width as the wire routing groove, that is, the wire tie base 7 is as wide as possible. In this way, the width of the arc-shaped groove can be increased as much as possible, reducing the influence of the wire tie base 7 on the wire harness and avoiding the wire harness protruding from the top surface of the plastic suction plate 1 due to the influence of the wire tie base 7. The wire tie base 7 and the wire tie do not increase the height of the plastic suction plate 1, and can well concentrate and fix the wire harness on the wire routing groove 4. When the integrated CCS component is installed on the top surface of the battery module, it will not increase the height of the module itself. Therefore, while improving the performance of the Pack product, the CCS does not occupy the precious internal space of the Pack box.

[0038] Adjacent connecting plate mounting grooves 6 in the same row are isolated by the groove walls, so as to prevent the positive and negative electrodes of the battery cells from being short-circuited due to accidental contact during the production or use of each string of connecting plates 8.

[0039] Each of the two opposite groove walls of the connecting plate mounting groove 6 is provided with a clamping projection 62 for clamping both ends of the connecting plate 8 between the clamping projection 62 and the bottom of the connecting plate mounting groove 6. The clamping projections 62 are provided on at least two groove walls in the length direction of the connecting plate mounting groove 6 for clamping both ends of the connecting plate 8 in the length direction. Moreover, the clamping projections 62 on the two groove walls in the length direction of the connecting plate mounting groove 6 are symmetrically arranged. Preferably, the top surface of the clamping projection 62 slopes downward away from the groove wall where the clamping projection 62 is located (facilitating the pressing of the connecting plate 8 below the clamping projection 62), and the bottom surface of the clamping projection 62 slopes upward away from the groove wall where the clamping projection 62 is located (facilitating the pulling out of the connecting plate 8 from below the clamping projection 62), that is, both the top surface and the bottom surface of the clamping projection 62 are inclined surfaces. While meeting the installation and limiting requirements for the connecting plate 8, it also facilitates the installation and disassembly of the connecting plate 8, improving the pre-installation efficiency of the connecting plate 8.

[0040] Since the spacing accuracy requirements between each connecting plate 8 are very high, any deviation may cause the welding of the connecting plate 8 and the surface of the battery cell pole to shift, and the laser may skip the connecting plate 8 and directly hit the surface of the battery cell pole, resulting in an excessive melting depth of the battery cell pole surface or even welding through the battery cell pole. Therefore, precise positioning of the connecting plate 8 is required. In this embodiment, at least two positioning posts 61 are provided at the bottom of each connecting plate mounting groove 6 to cooperate with the positioning holes on the connecting plate 8 for positioning. After the connecting plate 8 is clamped into the connecting plate mounting groove 6, the at least two positioning posts 61 assist in positioning the connecting plate 8. The positioning posts are thermally riveted to fix the connecting plate, and both ends of the connecting plate are clamped by the clamping projections 62, and the connecting plate is limited by the groove walls around it, ensuring the accurate positioning of the connecting plate 8 and maintaining the accuracy and stability of the position.

[0041] The connecting plate mounting groove 6 of this embodiment is a square groove (not strictly square, fine-tuned according to the specific shape of the connecting plate 8). The groove walls of the connecting plate mounting groove 6 limit the four sides of the connecting plate 8. The side wall of the retaining strip 11 is a part of the groove wall of the connecting plate mounting groove 6, and the retaining strip 11 has a limiting effect on the side of the connecting plate 8. Both ends of the connecting plate 8 are clamped by the clamping projections 62, and the positioning posts 61 position the connecting plate 8. The connecting plate 8 can be pre-installed before welding, realizing the pre-positioning of the welding points of the CCS assembly, enabling the welding points of the two to be automatically aligned after the assembly is installed with the battery module, and directly entering the module laser welding process for direct welding after alignment, improving the welding efficiency of the battery cell module and thus enhancing the Pack forming efficiency.

[0042] A through hole is provided at the bottom of each connecting plate mounting groove 6 for the pole of the battery cell to pass through and be connected to the connecting plate 8. The plastic suction board 1 is provided with an avoidance hole for the pole, facilitating the connection between the connecting plate 8 and the battery cell.

[0043] The plastic suction board 1 is configured with a cover plate 13. Preferably, the length of the cover plate 13 is not less than that of the rib 5. Two rows of card slots 12 are provided on the plastic suction board 1. The two rows of card slots 12 are respectively arranged on the retaining strips 11 on both sides of the rib 5. The retaining strips 11 are recessed from the back surface of the plastic suction board 1. The cover plate 13 is parallel to the bottom surface of the plastic suction board 1. There are buckles 14 perpendicular to the bottom surface of the plastic suction board 1 on both sides of the cover plate 13. The buckles 14 cooperate with the card slots 12 to fix the cover plate 13 on the plastic suction board 1 to cover the rib 5 and the two wire grooves 4. The buckles 14 are accommodated in the corresponding grooves of the retaining strips 11 on the back surface of the plastic suction board 1. The height of the retaining strips 11 is used to accommodate the buckles 14 so that the buckles 14 do not protrude from the bottom surface of the plastic suction board 1.

[0044] The cover plate 13 is provided with an explosion-proof valve relief hole 51 corresponding to the explosion-proof valve relief hole 51 on the rib 5. At least on the position corresponding to the top surface of the rib 5 on the cover plate 13, there is an adhesive 15. The two-way buckle 14 design of the cover plate 13 itself and the local adhesive 15 assistance satisfy the installation of the cover plate 13 on the plastic suction board 1, realize the encapsulation of each collection wire harness, and avoid the exposure of the wire harness. Compared with the existing CCS solutions of the same type, this solution adds a cover plate 13, making the scattered collection wires better display the state of the module at the module level when the battery box cover is disassembled, more neat and beautiful. At the same time, the wire harness also has an additional layer of protection to avoid damage to the collection wire harness by falling objects during the manufacturing process or maintenance.

[0045] The cover plate 13 has the following advantages:

[0046] The cover plate 13 is combined with the plastic suction board 1 in the way of buckle 14 + adhesive 15. The buckle 14 method is more convenient for disassembly and is easier to operate for production and maintenance personnel. The adhesive 15 is used at the edge end of the wire harness cover plate 1 to avoid warping of the wire harness cover plate 1, making the overall combination good, easy to use and beautiful. The cover plate 13 also has an explosion-proof valve avoidance structure, which does not affect the use performance of the explosion-proof valve.

[0047] The connecting plate 8 in this embodiment includes various objects with electrical circuit connections such as copper blocks and aluminum bars.

[0048] As a preferred design, each connecting plate 8 is provided with a counterbore 9 at the position corresponding to the cell pole post on the front surface, which is convenient for controlling the flow direction of the welding solution when the connecting plate 8 and the pole post are welded to be limited to the designed counterbore 9 area, and avoid the turbulent flow of individual welding solutions caused by other problems.

[0049] To illustrate the usage of the above components, this embodiment also provides a CCS component that incorporates the above components, specifically including a plastic suction plate 1, a connection row 2, and a signal acquisition wire harness 3. On the front surface of the plastic suction plate 1, there are two wire grooves 4, a convex strip 5, and two rows of connecting plate mounting grooves 6. The two wire grooves 4 are located between the two rows of connecting plate mounting grooves 6, and the convex strip 5 is located between the two wire grooves 4 to separate the two wire grooves 4. Each wire groove 4 is provided with several wire tie seats 7, and each wire groove 4 communicates with each adjacent connecting plate mounting groove 6. The connection row 2 includes two rows of connecting plates 8, and the two rows of connecting plates 8 are respectively installed in the two rows of connecting plate mounting grooves 6. The signal acquisition wire harness 3 is divided into two strands and is respectively fixed in the two wire grooves 4 with wire ties. The connecting plates 8 in the same row are connected to the signal acquisition wires in the adjacent wire grooves 4. The CCS component of the present utility model has a layout of the same side and the same path for the acquisition wires of the same-side pole columns. Structurally, it clarifies the wire harness routing, facilitating quick installation, maintenance, and repair. Two acquisition wire harness grooves (wire grooves 4) are made on the plastic suction plate 1 to avoid the explosion-proof space required for the cell explosion-proof valve, preventing the risk of explosion failure easily caused by the wire harness piling up on the protective film of the cell explosion-proof valve; at the same time, it also avoids the stacking pressure of the wire harness, which may cause the protective film of the cell explosion-proof valve to fall off or be damaged, resulting in the loss of the outermost protection of the cell explosion-proof valve.

[0050] On the front surface of the connecting plate 8 at the welding position with the cell pole column, there is a counterbore 9 for controlling the flow direction of the welding solution.

[0051] At least some of the connecting plates 8 are provided with two welding positions respectively welded to the two cell pole columns, and are bent between the two welding positions so that the connecting plate 8 is in a U-shape.

[0052] The connecting plate 8 is configured with a nickel sheet 10, and the nickel sheet 10 is bent into a U-shape. The connecting plate 8 is provided with a nickel sheet mounting hole 81, and the bent part of the nickel sheet 10 is pre-installed by being elastically deformed and stuck in the nickel sheet mounting hole 81.

[0053] At least two positioning posts 61 are provided in the connecting plate mounting groove 6, and the connecting plate 8 is provided with at least two positioning holes to match the two positioning posts 61. After the connecting plate 8 is positioned by the cooperation of the positioning posts 61 and the positioning holes, the positioning posts 61 are hot riveted to fix the connecting plate 8.

[0054] At least on the two groove walls in the length direction of the connecting plate mounting groove 6, there are clamping protrusions 62 for clamping the two ends in the length direction of the connecting plate 8 between the clamping protrusions 62 and the bottom of the connecting plate mounting groove 6. The top surface of the clamping protrusion 62 is inclined downward in the direction away from the groove wall where the clamping protrusion 62 is located, and the bottom surface of the clamping protrusion 62 is inclined upward in the direction away from the groove wall where the clamping protrusion 62 is located.

[0055] The wire duct 4 is separated from an adjacent row of connecting plate mounting grooves 6 by a stop strip 11, and the stop strip 11 is provided with notches for communicating the connecting plate mounting grooves 6 with the wire duct 4 at positions corresponding to each connecting plate mounting groove 6; the plastic suction board 1 is configured with a cover plate 13, and two rows of card slots 12 are arranged on the plastic suction board 1, and the two rows of card slots 12 are respectively arranged on the stop strips 11 on both sides of the rib 5.

[0056] Both sides of the cover plate 13 have buckles 14 perpendicular to the bottom surface of the plastic suction board 1, and the buckles 14 cooperate with the card slots 12 to fix the cover plate 13 on the plastic suction board 1 to cover the rib 5 and the two wire ducts 4. The rib 5 and the cover plate 13 are both provided with explosion-proof valve relief holes 51 for the explosion-proof valves of the battery cores to pass through; at least on the position corresponding to the top surface of the rib 5 on the cover plate 13, there is an adhesive 15, and the cover plate 13 is attached to the top surface of the rib 5 through the adhesive 15.

[0057] The fastening directions of the buckles at both ends in the length direction of the cover plate are set in opposite directions. The buckles in this embodiment are L-shaped. In other embodiments, double-headed buckles can also be used.

[0058] The middle part of the top surface of the wire tying seat 7 is recessed to form a wire harness groove 71. The top surface of the wire tying seat 7 is provided with wire passing holes 72 on both sides of the wire harness groove 71 for the cable ties to pass through, and the height of the back surface of the wire harness groove 71 is higher than the height of the back surface of the wire duct 4.

[0059] The assembly process of this CCS component is as follows:

[0060] 1. Place the connecting plate 8 into the corresponding connecting plate mounting groove 6 on the plastic suction board 1 for hot pressing, and thermally melt the positioning posts 61 in the connecting plate mounting groove 6 to firmly fix the connecting plate 8 in the connecting plate 8 groove.

[0061] 2. Weld the module temperature and voltage acquisition wires to the nickel sheets 10 mounted on the connecting plate 8 respectively.

[0062] 3. Arrange the temperature acquisition wires and voltage acquisition wires of the module's same-side pole columns together and tie them with cable ties. When tying each cable tie, pass the cable tie through the wire passing hole 72 of the wire tying seat 7 on the plastic suction board 1 to fix the whole bundle of acquisition wire harnesses on the wire tying seat 7 of the plastic suction board 1. The same operation is performed on the other side.

[0063] 4. After welding, arranging, tying, and fixing the acquisition wire harnesses on both sides, install the cover plate 13 on the plastic suction board 1.

[0064] 5. Install the cover plate 13 on the plastic suction board 1: First, tear off the sticker of the adhesive 15 on the back of the cover plate 13; slightly arch and bend the cover plate 13; from one end of the cover plate to the other end, embed the buckles 14 into the card slots on the plastic suction board 1 pair by pair, and then smooth the top of the cover plate 13 to make the adhesive 15 adhere firmly to the plastic suction board 1.

[0065] Through the above five steps, the entire CCS is completed for integration. Enter the battery module manufacturing process in this state, and then enter the welding process of the module connection row 2. Complete the welding of the full set of CCS on the module, turning the module from a semi-finished module into a finished module, which can be directly put into the Pack box.

[0066] This CCS component has the following characteristics:

[0067] 1. For the PCB board structure, since the PCB board is too hard, its anti-cell expansion ability and the vibration resistance of the Pack are relatively poor, and the FPC is relatively high in cost. Therefore, from the perspective of cost reduction, the way of wire harness + CCS, although it has some disadvantages itself, its advantages are not non-existent. In addition to low cost, the non-hardened collection wire harness has better flexibility to adapt to anti-cell expansion and vibration tests, and will not break.

[0068] 2. The plastic suction board 1 realizes the convenient installation and accurate positioning of the connection row 2 through the clamping protrusions 62 and positioning columns 61 on the plastic suction board 1. Coupled with the hot pressing process, the connection row 2 is firmly adsorbed on the plastic suction board 1.

[0069] 3. On the premise of lower cost, compared with the traditional wire harness fixation, usually all the collection wire harnesses on a single module are bundled together and then fixed with adhesive tape. This solution adopts a decentralized method, with the collection wire harnesses on the same side as one strand, and this strand of collection wire harness is firmly fixed on the wire tying seat 7 of the plastic suction board 1.

[0070] 4. The cover plate 13 is designed with a two-way buckle 14 type + auxiliary back glue 15, which is easy for production line operators to install and can avoid falling off under long-term use conditions in the later stage.

[0071] 5. The design of the cover plate 13 not only realizes the encapsulation of the collection wire harness, but also does not affect the heat dissipation of the connection row 2, making the single module more beautiful and covering the collection wire harness.

[0072] 6. Compared with the traditional fixation of the connection row 2 by the plastic suction board 1, which is often limited to hot pressing, this solution uses the method of buckle 14 + hot pressing + positioning column 61 to install the connection row 2. The limit of the connection row 2 on the plastic suction board 1 is 360° all-round. During the turnover process of the module, it may tilt or flip. At this time, using this solution of the plastic suction board 1 can ensure that the aluminum row does not fall off, and avoid safety accidents such as short circuit of the module and spontaneous combustion and explosion caused by the aluminum row falling off and falling on other cell aluminum rows;

[0073] 7. Compared with the traditional centralized wire arrangement in the middle, for this CCS solution, the acquisition lines of the same-side pole columns are arranged in the same route on the same side. Structurally, it clarifies the wire harness routing, facilitating installation, inspection, and maintenance. At the same time, a dedicated wire harness tying base 7 structure is made for the same-side wire harnesses for bundling and fixing the wire harnesses. In addition, the same-route CCS wiring method on the same side better avoids the explosion-proof space required by the explosion-proof valve, preventing the wire harnesses from piling up on the protective film of the explosion-proof valve, which may affect explosion-proof failure, and also avoiding the stacking pressure of the wire harnesses, which may cause the protective film of the explosion-proof valve to fall off or be damaged, resulting in the explosion-proof valve losing its outermost protection.

[0074] 8. Compared with similar solutions, this solution adds a wire harness sealing plate, enabling the scattered acquisition lines to better display the state of the module at the module level when the battery box cover is removed, making it neater and more beautiful. At the same time, the wire harness also has an additional layer of protection to prevent objects from falling during the manufacturing process or maintenance from damaging the acquisition wire harness. This wire harness sealing plate is combined with the plastic suction plate 1 by using the buckle 14 + back glue 15 method. The buckle 14 method is more convenient for disassembly and is easier to operate for production and maintenance personnel. The back glue 15 is used at the edge of this wire harness sealing plate to prevent the wire harness sealing plate from warping, making the overall combination both functional and beautiful. This wire harness sealing plate also has an explosion-proof valve avoidance structure, which does not affect the performance of the explosion-proof valve.

[0075] 9. Compared with the similar outgoing pole connection plates 8 that mostly adopt straight plate types, at least part of the connection plates 8 used to connect two battery cells in this solution are bent. Specifically, the middle part of the connection plate 8 is bent to make the connection plate 8 in a shape like the Chinese character 'ji'. The two positions for welding with the battery cell pole columns are respectively located on both sides of the bent part. This structure better transfers the torque and force received by the battery cell pole columns at the outgoing end due to screw fastening to the outside, avoiding the stress on the pole columns, as well as the weld seams between the connection plate 8 and the pole columns. Avoiding weld seam tearing, which may lead to poor contact between the total positive and total negative, generating a large amount of heat and causing safety hazards such as spontaneous combustion of the module.

[0076] 10. This CCS component significantly reduces the manufacturing cost of the module compared with PCB and FPC. At the same time, it also maximally avoids the disadvantages of the scattered wire acquisition method.

[0077] 11. At all the welding points of the connection row 2 on this plastic suction plate 1 with the battery cell pole columns, a counterbore 9 is made to sink, facilitating the control of the flow direction of the welding solution during the welding of the connection plate 8 and the pole column to be limited to the designed counterbore 9 area, avoiding the random flow of individual welding solutions due to other problems. In addition, the nickel sheet 10 is nested through the square through-hole on the connection plate 8, facilitating the pre-welding of the nickel sheet 10.

[0078] The connection row 2 in this embodiment includes various objects with electrical circuit connections such as copper bars and aluminum bars.

[0079] As described above, the embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Claims

1. A component for integrated CCS, characterized in that: It includes a blister plate and a cover plate. The front side of the blister plate is provided with two wiring grooves, a convex strip and two rows of connecting plate mounting grooves. The two wiring grooves are located between the two rows of connecting plate mounting grooves. The convex strip is located between the two wiring grooves to separate the two wiring grooves, and each wiring groove is connected with an adjacent row of connecting plate mounting grooves. The back side of the cover plate is provided with adhesive backing at least at the position corresponding to the top surface of the convex strip. The cover plate is snap-connected with the blister plate and fits with the top surface of the convex strip through the adhesive backing to cover the convex strip and the two wiring grooves. Two rows of card slots are provided on the blister plate, and buckles are provided on both sides of the cover plate that are perpendicular to the bottom surface of the blister plate. The buckles and the card slots cooperate to fix the cover plate on the blister plate. The buckles are L-shaped; the fastening directions of the buckles at both ends of the cover plate in the length direction are set in opposite directions.

2. The component for integrated CCS according to claim 1, characterized in that: The wiring groove is separated from a whole row of adjacent connection plate installation grooves by a blocking bar, and the blocking bar is provided with a notch at a position corresponding to each connection plate installation groove for connecting the connection plate installation groove to the wiring groove.

3. The component for integrated CCS according to claim 2, characterized in that: Two rows of card slots are respectively arranged on the baffles on both sides of the convex strip, and both the convex strip and the cover plate are provided with explosion-proof valve clearance holes for allowing the explosion-proof valve of the power core to pass through.

4. The component for integrated CCS according to claim 2, characterized in that: The retaining strips and the convex strips are formed by depressions on the back of the blister board, and the adjacent connecting plate installation grooves in the same row are isolated by the groove walls of the connecting plate installation grooves.

5. The component for integrated CCS according to claim 1, characterized in that: Each wiring trough is provided with a plurality of cable tying seats, the middle part of the top surface of the cable tying seat is concave to form a harness trough, the top surface of the cable tying seat is provided with wire holes on both sides of the harness trough for cable ties to pass through, and the height of the back of the harness trough is higher than the height of the back of the wiring trough.

6. The component for integrated CCS according to claim 1, characterized in that: The connection plate installation groove is provided with a clamping protrusion on at least two groove walls in the length direction, the top surface of the clamping protrusion is inclined downward in a direction away from the groove wall where the clamping protrusion is located, and the bottom surface of the clamping protrusion is inclined upward in a direction away from the groove wall where the clamping protrusion is located.

7. The component for integrated CCS according to claim 1, characterized in that: At least two positioning posts are provided at the bottom of the connecting plate installation slot, which are used to cooperate with at least two positioning holes on the connecting plate for positioning.

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