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CN-122025994-A - CCS plastic-absorbing isolation plate with fold line-shaped buffer boss and process method thereof

CN122025994ACN 122025994 ACN122025994 ACN 122025994ACN-122025994-A

Abstract

The invention discloses a CCS plastic-absorbing partition board with a fold line-shaped buffer boss and a preparation method thereof. The partition plate is provided with a continuous undulating fold line-shaped hollow buffer boss on the surface of one side of the main body far away from the battery module, the top surface of the boss is a horizontal end surface and is higher than the aluminum bar embedded on the surface of the boss, and the partition plate can bear bottom impact preferentially when the CCS is inverted, so that electric components are effectively protected. The preparation method comprises the steps of arranging vacuum adsorption micropores in the boss area of the die in an encrypted manner to ensure complete molding of the complex structure, adopting zonal controllable cooling to enable the boss to be shaped preferentially so as to reduce deformation, and realizing accurate contour machining through high-precision positioning and cutting. The invention realizes the unification of structure protection and process reliability, and is suitable for the bottom protection of the battery pack of the electric automobile.

Inventors

  • FENG XIUYING
  • CAO HUA
  • SUN GAOSEN

Assignees

  • 宁德壹连电子有限公司

Dates

Publication Date
20260512
Application Date
20260210

Claims (10)

  1. 1. A CCS plastic-absorbing isolation plate with fold-line-shaped buffer bosses comprises an isolation plate body (1) and is characterized in that multiple groups of buffer bosses (2) are arranged on the surface of one side, far away from a battery module, of the isolation plate body (1), multiple groups of parallel aluminum bars (3) are embedded on the surface of the isolation plate body (1), at least one group of buffer bosses (2) are arranged beside each group of aluminum bars, each group of buffer bosses (2) form a continuous-fluctuation fold-line-shaped hollow body structure, the top surface of each buffer boss is a horizontal end surface (21), and the height of the horizontal end surface (21) is higher than that of the aluminum bars embedded on the surface of the isolation plate body (1).
  2. 2. The CCS plastic uptake spacer with fold-line shaped buffer boss as claimed in claim 1, wherein the hollow body structure of the buffer boss (2) is rectangular or square in cross section.
  3. 3. The CCS plastic sucking isolating plate with the fold line-shaped buffer boss as claimed in claim 1, wherein the buffer bosses (2) are uniformly arranged at intervals along the length or width direction of the isolating plate main body (1) to form a plurality of parallel reinforcing ribs.
  4. 4. The CCS plastic suction spacer with fold line shaped buffer boss as claimed in claim 1, wherein the vertical distance between the horizontal end surface (21) of the buffer boss (2) and the surface of the spacer body (1) is greater than the thickness of aluminum bar, so that the buffer boss (2) contacts the lower guard plate or external impact object preferentially.
  5. 5. A method for preparing the CCS plastic sucking isolation plate with the fold line-shaped buffer boss as claimed in any one of claims 1-4 is characterized by comprising the following steps of S1 designing a plastic sucking mould matched with a product structure according to a three-dimensional data model of the isolation plate, processing grooves corresponding to the buffer boss structure on the cavity surface of the plastic sucking mould, distributing vacuum adsorption micropores on the surfaces of the grooves and the cavity, S2 placing a PC sheet material in a heating area of a sealed plastic sucking forming machine, heating for 3.2-3.5 seconds at a set temperature until the PC sheet material is uniformly softened, transferring the softened sheet material to the upper part of the mounted and debugged plastic sucking mould, starting a vacuum adsorption system, adsorbing and attaching the softened sheet material to the inner wall of the cavity of the mould through the vacuum adsorption micropores on the plastic sucking mould, keeping adsorption pressure for 2.8-3.2 seconds, S3, immediately starting a mould cooling system after forming, forcibly cooling the sheet material adsorbed on the mould for 12-15 seconds, solidifying and forming the sheet material, after cooling, obtaining a semi-finished product with the buffer boss structure, S4, using a special cutter for cutting, carrying out contour trimming, and cutting for 3 seconds, and packaging the semi-finished product after the semi-finished product is cut, and trimming, and cutting the finished product is free of appearance and has no defects after the cut and has been subjected to trimming, and the finished product is subjected to trimming and has a standard cut and finished and has a standard appearance quality finished product.
  6. 6. The method for preparing a CCS plastic sucking and isolating plate with a fold line-shaped buffer boss as claimed in claim 5, wherein in the step S1, the vacuum adsorption micro holes are arranged in an encrypted manner at the corresponding groove corners and bottom areas of the buffer boss.
  7. 7. The method for manufacturing the CCS plastic sucking isolating plate with the fold line-shaped buffer boss as claimed in claim 5, wherein the precise cutting process of the CCS plastic sucking isolating plate adopted in the step S4 is characterized by comprising the following steps of S41, placing a molded and cooled semi-finished plastic sucking product on a workbench of a punching and cutting machine, fixing the semi-finished plastic sucking product through a composite positioning system consisting of at least three positioning pins and vacuum adsorption holes, and ensuring that the positioning error between the product contour and a theoretical cutting line is less than or equal to +/-0.1 mm, S42, starting the punching and cutting machine, and driving a special cutting die manufactured according to the final contour of the product to carry out punching and cutting; S43, after cutting, separating finished products from waste edges by a workbench lifting mechanism, automatically collecting the waste edges by a negative pressure conveying system and conveying the waste edges to a recycling bin, picking up the finished products by a mechanical arm or a sucker device with a buffer material, transferring the finished products to a turnover material box of the next procedure, and carrying out non-contact scratch on the surfaces of the finished products in the whole process.
  8. 8. The method of claim 5, wherein the mold cooling system in step S3 is a zone-controlled cooling system, and wherein during the cooling step, more effective cooling is applied to the cavity region of the suction mold corresponding to the buffer boss structure than to other planar regions, so as to preferentially solidify and shape the buffer boss structure.
  9. 9. The method of manufacturing a CCS plastic sucking spacer with a fold line-shaped buffer boss of claim 7, wherein after the special cutting die for S42 is installed and calibrated, the parallelism error between the cutting edge plane and the lower die plane is less than or equal to 0.03mm, so as to ensure that the accuracy of the cutting contour is within +/-0.1 mm.
  10. 10. The method for manufacturing a CCS plastic sucking spacer with a fold line shaped buffer boss as claimed in claim 5, wherein the dimension of the plastic sucking spacer is measured by using a two-dimensional measuring instrument or a caliper in the step S5.

Description

CCS plastic-absorbing isolation plate with fold line-shaped buffer boss and process method thereof Technical Field The invention relates to a CCS plastic-absorbing partition board and a process method thereof, in particular to a CCS plastic-absorbing partition board with a fold line-shaped buffer boss and a process method thereof. Background In the rapid development of electric automobiles, the structural safety design of a power battery pack faces unprecedented challenges. The CCS (Cell Contact System, battery connection system) integrates key electrical components such as conductive aluminum bars with battery cells connected in series and parallel, a flexible circuit board (FPC/FFC) for voltage and temperature acquisition, and the like. The CCS plastic uptake insulation board has evolved from a pure electrical isolation to a multifunctional integrated piece that must have structural support and passive safety protection capabilities as a load-bearing and insulating substrate for the electrical components. Particularly in the CCS inversion scheme, which is raised to improve energy density and maintenance convenience, CCS assemblies are disposed at the bottom of the battery module between the battery cells and the lower case of the battery pack. This arrangement exposes the CCS screen directly to potential bottom mechanical shock risks. The traditional plastic sucking isolating plate with flat plate or simple rib structure has low structural rigidity and weak energy absorbing capacity, and is easy to generate plastic deformation or rupture when being impacted. This can lead to bending, breaking or shorting of the delicate aluminum bars and FPCs it carries, which can lead to catastrophic consequences such as thermal runaway of the battery system. Therefore, developing a CCS isolation board structure which can meet the integration requirement of complex electrical components and has excellent impact resistance and compression resistance, and matching with a set of technological method which can realize the mass production and manufacture of the complex structure stably, efficiently and accurately, has become a technical problem which needs to be solved in the field urgently. Disclosure of Invention In order to solve the defects of the technology, the invention provides a CCS plastic sucking isolation plate with a fold line-shaped buffer boss and a process method thereof. In order to solve the technical problems, the technical scheme includes that the CCS plastic absorbing isolation plate with the fold-line-shaped buffer bosses comprises an isolation plate body, a plurality of groups of buffer bosses are arranged on the surface of one side, far away from a battery module, of the isolation plate body at intervals, a plurality of groups of parallel-arranged aluminum bars are embedded on the surface of the isolation plate body, at least one group of buffer bosses are arranged beside each group of aluminum bars, each group of buffer bosses form a fold-line-shaped hollow body structure with continuous fluctuation, the top surface of the fold-line-shaped hollow body structure is a horizontal end surface, and the height of the horizontal end surface is higher than that of the aluminum bars embedded on the surface of the isolation plate body. Further, the cross section of the hollow body structure of the buffer boss is rectangular or square. Further, the buffer bosses are uniformly arranged at intervals along the length or width direction of the partition plate main body to form a plurality of parallel reinforcing ribs. Further, the vertical distance between the horizontal end surface of the buffer boss and the surface of the main body of the isolation plate is larger than the thickness of aluminum bar, so that the buffer boss is in preferential contact with the lower protection plate or an external impact object. A method for preparing a CCS plastic sucking isolation plate includes the following steps of S1, designing a plastic sucking mould matched with a product structure according to a three-dimensional data model of the isolation plate, machining grooves corresponding to buffer boss structures on the cavity surface of the plastic sucking mould, distributing vacuum adsorption micropores on the surfaces of the grooves and the cavities, S2, placing a PC sheet material in a heating zone of a sealed plastic sucking forming machine, heating for 3.2-3.5 seconds to uniformly soften the PC sheet material at a set temperature, transferring the softened sheet material to the upper portion of the plastic sucking mould which is installed and debugged, starting a vacuum adsorption system, adsorbing the softened sheet material on the inner wall of a mould cavity through the vacuum adsorption micropores on the plastic sucking mould, keeping adsorption pressure to form for 2.8-3.2 seconds, S3, starting a mould cooling system immediately after forming, forcedly cooling the sheet material adsorbed on the mould for 12-15 seconds to