Blister plate for integrated CCS

Abstract

The utility model discloses a plastic uptake plate for an integrated CCS, the front surface 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 located between the two rows of connecting plate mounting grooves, the raised line is located between the two wiring grooves to separate the two wiring grooves, each wiring groove is internally provided with a plurality of binding seats, and the binding seats are connected with the connecting plate mounting grooves. And each wiring groove is communicated with each adjacent connecting plate mounting groove. Compared with a traditional middle centralized flat cable plastic uptake plate, the plastic uptake plate has the advantages that the same-side and same-path layout is carried out on the collection lines of the pole columns on the same side, the wiring harness trend is sorted 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 plastic suction board for integrated 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 transportation tools, backup energy or main energy sources for power plants, factories, commercial buildings, scientific research, and other industries; 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 a signal acquisition component (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 integrated 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 integrated optimization of the module acquisition lines and acquisition points is not carried out using PCB boards or FPC boards, but 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 layout the acquisition wires neatly and beautifully; 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. Therefore, it is necessary to design a plastic suction board that is easy to sort out the wire harnesses and makes the layout of the acquisition wires neat. Summary of the Utility Model

[0007] In view of the deficiencies of the prior art, the utility model provides a plastic suction board for integrating CCS, which is used to straighten the acquisition wire harness, avoid the accumulation of the acquisition wire harness, and facilitate maintenance.

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

[0009] A plastic suction board for integrating CCS, the front of the plastic suction board is provided with two wire grooves, a convex strip and two rows of connecting plate mounting grooves. The two wire grooves are located between the two rows of connecting plate mounting grooves. The convex strip is located between the two wire grooves to separate the two wire grooves. The convex strip and the two wire grooves both extend along the length direction of the plastic suction board. Each wire groove communicates with an adjacent row of connecting plate mounting grooves.

[0010] Furthermore, a plurality of wire tying seats are arranged in each wire groove. The middle part of the top surface of the wire tying seat is concave to form a wire harness groove. Through holes for the wire ties to pass through are arranged on both sides of the wire harness groove on the top surface of the wire tying seat.

[0011] Furthermore, the height of the back surface of the wire harness groove is higher than the height of the back surface of the wire groove.

[0012] Furthermore, the connecting plate mounting groove is provided with clamping protrusions on at least two groove walls in the length direction, which are used to clamp the two ends of the connecting plate in the length direction between the clamping protrusions and the bottom of the connecting plate mounting groove. The top surface of the clamping protrusion is inclined downward in the direction away from the groove wall where the clamping protrusion is located, and the bottom surface of the clamping protrusion is inclined upward in the direction away from the groove wall where the clamping protrusion is located.

[0013] Furthermore, at least two positioning columns are arranged at the bottom of the connecting plate mounting groove, which are used to cooperate with at least two positioning holes on the connecting plate for positioning.

[0014] Furthermore, the wire groove is separated from an adjacent whole row of connecting plate mounting grooves by a baffle strip, and the baffle strip is provided with a notch for the connecting plate mounting groove to communicate with the wire groove at the position corresponding to each connecting plate mounting groove.

[0015] Furthermore, the baffle strip and the convex strip are recessed from the back surface of the plastic suction board, and the adjacent connecting plate mounting grooves in the same row are isolated by the groove walls of the connecting plate mounting grooves.

[0016] Furthermore, the plastic suction board is provided with a cover plate. Two rows of card slots are arranged on the plastic suction board, and the two rows of card slots are respectively arranged on the baffle strips on both sides of the convex strip. Both sides of the cover plate have buckles perpendicular to the bottom surface of the plastic suction board. The buckles cooperate with the card slots to fix the cover plate on the plastic suction board to cover the convex strip and the two wire grooves. The convex strip and the cover plate are both provided with explosion-proof valve relief holes for the explosion-proof valves of the battery cores to pass through.

[0017] Furthermore, the back surface of the cover plate is provided with an adhesive at least at the position corresponding to the top surface of the convex strip, and is attached to the top surface of the convex strip through the adhesive.

[0018] Furthermore, the fastening directions of the fasteners at both ends in the length direction of the cover plate are set in opposite directions.

[0019] The utility model has the following beneficial effects:

[0020] Compared with the traditional centrally arranged wire harness plastic suction plate in the middle, the plastic suction plate of the utility model has a wire routing groove layout of the same side and the same path 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 plate to avoid the explosion-proof space required by 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 piling and pressing of the wire harness, which may cause the protective film of the cell explosion-proof valve to fall off or be damaged, making the cell explosion-proof valve lose the outermost layer of protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the CCS component according to an embodiment of the utility model;

[0022] Figure 2 is Figure 1 a view of the CCS component with the cover plate removed;

[0023] Figure 3 is a schematic structural diagram of the plastic suction plate according to an embodiment of the utility model;

[0024] Figure 4 is Figure 3 another view of the plastic suction plate;

[0025] Figure 5 is a schematic structural diagram of the cover plate according to an embodiment of the utility model;

[0026] Figure 6 is Figure 5 another view of the cover plate;

[0027] Figure 7 is a schematic diagram of the nickel sheet and the connecting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be further described below in conjunction with the accompanying 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 accompanying 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] AsFigures 1 to 7 As shown, a blister board 1 for integrated CCS has two wiring grooves 4, a convex strip 5 and two rows of connecting plate mounting grooves 6 on the front, the two wiring grooves 4 are located between the two rows of connecting plate mounting grooves 6, the convex strip 5 is located between the two wiring grooves 4 to separate the two wiring grooves 4, the convex strip 5 and the two wiring grooves 4 are extended along the length direction of the blister board 1, the convex strip 5 is provided with a row of explosion-proof valve clearance holes 51 for the explosion-proof valves of the power supply core to pass through, each wiring groove 4 is provided with a plurality of wire binding seats 7, each row of connecting plate mounting grooves 6 has a plurality of connecting plate mounting grooves 6, the wiring groove 4 is separated from an adjacent row of connecting plate mounting grooves 6 by a baffle 11, and the baffle 11 is provided with a notch for the connecting plate mounting groove 6 to connect to the wiring groove 4 at the position corresponding to each connecting plate mounting groove 6. Compared with the traditional intermediate centralized wiring arrangement, the blister board 1 of this embodiment arranges the collection lines of the same side poles on the same side in the same way, and from the structural point of view, the direction of the wiring harness is clarified, which is convenient for rapid installation, inspection and maintenance.

[0031] In the specific structure, the blocking bar 11 is provided with a notch for the connection plate installation slot 6 to connect to the wiring slot 4 at the position corresponding to each connection plate installation slot 6, that is, the groove wall of the connection plate installation slot 6 is hollowed out in the direction toward the inner side of the battery cell, and the metal connector of the signal collection line is connected to the connection plate from the notch. The electrical signal collection is placed on one side of the battery module, which is convenient for electrical connection and increases the utilization rate of the wiring space.

[0032] In the specific structure, preferably, each end of the convex strip 5 in the length direction is at a certain distance from the same end face of the blister board 1, that is, the length of the convex strip 5 is shorter than the total length of the blister board 1, so that the wire harnesses of the two wiring grooves 4 are conveniently combined into one bundle at the end of the convex strip 5. Preferably, the two ends of the convex strip 5 are set as arc end faces to avoid scratching the wire harness.

[0033] In the specific structure, the back of the blister board 1 is concave at the position of the wire tie seat 7, and the concave part is formed on the front of the blister board 1 to form the wire tie seat 7. Preferably, the top surface of the convex strip 5 and the baffle 11 is the top surface of the blister board 1, and such a design can simplify the mold used to manufacture the blister board 1. On the front of the blister board 1, the wire tie seat 7 is raised relative to the wiring groove 4 and its height is lower than the convex strip 5 and the baffle 11, that is, the wire tie seat 7 does not increase the height of the blister board 1.

[0034] The middle part of the top surface of the wire tie seat 7 is concave to form a wire harness groove 71, and the top surface of the wire tie seat 7 is provided with wire holes 72 on both sides of the wire harness groove 71 for the wire tie to pass through. The structural design of adding the wire tie seat 7 at the bottom of the blister board 1 can not only bundle the collected wire harness in the side direction on the wire tie seat 7, but also the layout of multiple wire tie seats 7 can strengthen the strength of the blister board 1.

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

[0036] The specific shape of the wire harness groove 71 is not limited, and there can be various shapes. For example, it can be an arc groove, a square groove, an elliptical groove with a notch, etc. In this embodiment, the wire harness groove 71 is preferably an arc groove (the arc groove should be understood in a broad sense, including an arc groove, an elliptical arc groove, etc.). The bottom height of the arc groove does not affect the wire harness cable tie passing through the two wire passing holes 72 on the wire tying seat 7. The arc groove is easy to be plastic suction molded and demolded, and the wire harness is tied into a bundle with a cable tie. The design of the arc 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 tying seat 7 has the same width as the wire routing groove, that is, the wire tying seat 7 is as wide as possible. In this way, the width of the arc groove can be increased as much as possible, the influence of the wire tying seat 7 on the wire harness can be reduced, and the wire harness can be prevented from protruding from the top surface of the plastic suction board 1 due to the influence of the wire tying seat 7. The wire tying seat 7 and the cable tie do not increase the height of the plastic suction board 1, and the wire harness is well concentrated and fixed in the wire routing groove 4. The integrated CCS component is installed on the top surface of the battery module without increasing 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] On two opposite groove walls of each connecting plate mounting groove 6, there are provided clamping protrusions 62 for clamping the two ends of the connecting plate 8 between the clamping protrusions 62 and the bottom of the connecting plate mounting groove 6. At least on the two groove walls in the length direction of the connecting plate mounting groove 6, there are provided clamping protrusions 62 for clamping the two ends in the length direction of the connecting plate 8. And the clamping protrusions 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 protrusion 62 inclines downward in the direction away from the groove wall where the clamping protrusion 62 is located (facilitating pressing the connecting plate 8 below the clamping protrusion 62), and the bottom surface of the clamping protrusion 62 inclines upward in the direction away from the groove wall where the clamping protrusion 62 is located (facilitating pulling the connecting plate 8 out from below the clamping protrusion 62), that is, both the top surface and the bottom surface of the clamping protrusion 62 are inclined surfaces. While satisfying the installation limit of the connecting plate 8, it also facilitates the installation and disassembly of the connecting plate 8 and improves the pre-installation efficiency of the connecting plate 8.

[0040] Due to the very high precision requirements for the spacing between each connecting plate 8, any deviation may cause the welding of the connecting plate 8 and the electrode post surface of the battery cell to shift, and the laser may skip the connecting plate 8 and directly hit the electrode post surface of the battery cell, resulting in an excessive melting depth of the electrode post surface of the battery cell or even piercing the electrode post of the battery cell. 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 installation groove 6 to cooperate with the positioning holes on the connecting plate 8 for positioning. After the connecting plate 8 is snapped into the connecting plate installation 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 the two ends of the connecting plate are clamped by the clamping protrusions 62, and the four sides of the connecting plate are limited by the groove walls, ensuring the accurate positioning of the connecting plate 8 and maintaining the accuracy and stability of the position.

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

[0042] A through hole is provided at the bottom of each connecting plate installation groove 6 for the electrode post of the battery cell to pass through and connect with the connecting plate 8. The plastic suction board 1 is provided with an avoidance hole for the electrode post, which facilitates the connection between the connecting plate 8 and the battery cell.

[0043] The plastic suction board 1 is provided with a cover plate 13. Preferably, the length of the cover plate 13 is not less than the convex strip 5. Two rows of card slots 12 are provided on the plastic suction board 1, and the two rows of card slots 12 are respectively arranged on the retaining strips 11 on both sides of the convex strip 5. The retaining strips 11 are recessed from the back of the plastic suction board 1. The cover plate 13 is parallel to the bottom surface of the plastic suction board 1, and both sides of the cover plate 13 have buckles 14 perpendicular to the bottom surface of the plastic suction board 1. The buckles 14 cooperate with the card slots 12 to fix the cover plate 13 on the plastic suction board 1 to cover the convex strip 5 and the two wire grooves 4. The buckles 14 are accommodated in the corresponding grooves of the retaining strips 11 on the back of the plastic suction board 1, and 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, and at least a back adhesive 15 is provided on the cover plate 13 at a position corresponding to the top surface of the rib 5. The two-way positive and negative snap 14 design of the cover plate 13 itself and the auxiliary local back adhesive 15 satisfy the installation of the cover plate 13 on the plastic suction plate 1, realizing the encapsulation of each collection wire harness and avoiding the exposure of the wire harness. Compared with the existing CCS solutions of the same type, this solution adds the 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, which is neater and more 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 or maintenance process.

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

[0046] The cover plate 13 is combined with the plastic suction plate 1 by means of a snap 14 + back adhesive 15. The snap 14 method is more convenient for disassembly and is easier to operate for production and maintenance personnel. The back adhesive 15 is used at the edge end of the wire harness cover plate 13 to prevent the wire harness cover plate 13 from warping, making the overall combination good, and easy to use and beautiful. The cover plate 13 also has an explosion-proof valve avoidance structure, which does not affect the 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, a counterbore 9 is provided on the front surface of each connecting plate 8 at a position corresponding to the cell pole post, facilitating the control of 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, avoiding the turbulent flow of individual welding solutions caused by other problems.

[0049] This embodiment also discloses a CCS component, including the above-mentioned plastic suction plate 1, connection row 2, and signal acquisition wire harness 3. On the front surface of the plastic suction plate 1, there are two wire grooves 4, one rib 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 rib 5 is located between the two wire grooves 4 to separate the two wire grooves 4. Each wire groove 4 is provided with several cable 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 fixed in the two wire grooves 4 with cable ties respectively. 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 makes 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 by 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] Further, 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] Further, at least part 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 shape of "J".

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

[0053] Further, 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] Further, the connecting plate mounting groove 6 is provided with clamping protrusions 62 at least on the two groove walls in the length direction, for clamping the two ends of the connecting plate 8 in the length direction 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] Further, the wire routing groove 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 at positions corresponding to each connecting plate mounting groove 6 for the connecting plate mounting groove 6 to communicate with the wire routing groove 4; the plastic suction board 1 is provided 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] Further, 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 routing grooves 4. Both the rib 5 and the cover plate 13 are 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] Further, 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] Further, 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 routing groove 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 heat 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 on the same side of the pole 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 of 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 integrated. Enter the battery module manufacturing process in this state, and then enter the welding process of the module connection row 2 to complete the welding of the entire 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-electrode expansion ability and the vibration resistance performance of the Pack are relatively poor, and the cost of the FPC is relatively high. 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 the anti-electrode expansion and vibration tests, and will not break easily.

[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 posts 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 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 makes it easy for the production line operator 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 post 61 to install the connection row 2. The limit of the connection row 2 on the plastic suction board 1 is 360° in all directions. During the turnover process of the module, it may tilt or turn over. At this time, using this plastic suction board 1 of this solution 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 wiring in the middle, in this CCS solution, the collection lines for the same-side pole columns are arranged in the same path on the same side. Structurally, it clarifies the wiring harness route, facilitating installation, inspection, and maintenance. At the same time, a dedicated wiring harness tie-down seat 7 structure is made for the same-side wiring harness for bundling and fixing the wiring harness. In addition, the CCS wiring method of the same path on the same side better avoids the explosion-proof space required by the explosion-proof valve, preventing the wiring harness 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 wiring harness, which may cause the protective film of the explosion-proof valve to fall off or be damaged, resulting in the loss of the outermost layer of protection for the explosion-proof valve.

[0074] 8. Compared with similar solutions, this solution adds a wiring harness sealing plate, enabling the scattered collection lines to better display the status of the module at the module level when the battery box cover is opened, making it neater and more beautiful. At the same time, the wiring harness also has an additional layer of protection to prevent objects from falling during the manufacturing or maintenance process from damaging the collection wiring harness. This wiring harness sealing plate is combined with the plastic suction plate 1 by means of snap fasteners 14 + adhesive 15. The snap fastener 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 of this wiring harness sealing plate to prevent the wiring harness sealing plate from warping, making the overall combination both useful and beautiful. This wiring 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 similar outgoing pole connection plates 8 that mostly adopt a straight plate type, at least part of the connection plate 8 used to connect two battery cells in this solution is 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', and the two positions for welding with the battery cell pole columns are 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 from the 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 resulting in 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 collection method.

[0077] 11. At all the welding points between the connection row 2 on this plastic suction plate 1 and 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 turbulent flow of individual welding solutions caused by 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 on 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 fall within the protection scope of the present invention.

Claims

1. A blister board for integrated CCS, characterized in that: The front of the blister board is provided with two wiring grooves, a convex strip and two rows of connection plate mounting grooves, 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, the convex strip and the two wiring grooves are extended along the length direction of the blister board, and each wiring groove is connected with an adjacent row of connection plate mounting grooves; The connecting plate mounting groove is a square groove; The connecting plate installation groove is provided with a clamping protrusion on at least two groove walls in the length direction, which is used to clamp the two ends of the connecting plate in the length direction between the clamping protrusion and the groove bottom of the connecting plate installation groove, the top surface of the clamping protrusion is inclined downward in the direction away from the groove wall where the clamping protrusion is located, and the bottom surface of the clamping protrusion is inclined upward in the direction away from the groove wall where the clamping protrusion is located; 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.

2. The blister board for integrated CCS according to claim 1, characterized in that: A plurality of cable tie seats are arranged in each wiring groove, the middle part of the top surface of the cable tie seat is concave to form a harness groove, and the top surface of the cable tie seat is provided with wire holes on both sides of the harness groove for cable ties to pass through.

3. The blister board for integrated CCS according to claim 2, characterized in that: The height of the back side of the wiring harness trough is higher than the height of the back side of the wiring trough.

4. The blister board 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.

5. The blister board for integrated CCS according to claim 4, 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.

6. The blister board for integrated CCS according to claim 5, characterized in that: The blister plate is equipped with a cover plate, which has two rows of slots, which are respectively arranged on the baffles on both sides of the convex strips. Both sides of the cover plate have buckles perpendicular to the bottom surface of the blister plate. The buckles and the slots cooperate to fix the cover plate on the blister plate to cover the convex strips and two wiring grooves. The convex strips and the cover plate are both provided with explosion-proof valve clearance holes through which the explosion-proof valve of the power supply core passes.

7. The blister board for integrated CCS according to claim 6, characterized in that: The back of the cover plate is provided with adhesive at least at a position corresponding to the top surface of the convex strip, and is bonded to the top surface of the convex strip through the adhesive.

8. The blister board for integrated CCS according to claim 7, characterized in that: The fastening directions of the buckles at both ends of the cover plate in the length direction are arranged in opposite directions.

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