Vehicle body side blind window structure and assembly process

Abstract

The invention relates to the technical field of passenger car body design, in particular to a car body side blind window structure and an assembly process. The blind window structure comprises a side wall outer plate blind window, an inner plate assembly and a reinforcing pad assembly. The inner plate assembly comprises an inner plate body and an anti-concave support, a first support, a second support and a third support are arranged on the outer side of the inner plate body, the second support and the third support are oppositely arranged, and the anti-concave support is fixed on the outer side of the inner plate body and is oppositely arranged with the first support; the reinforcing pad assembly comprises a first reinforcing piece and a second reinforcing piece, the first reinforcing piece and the second reinforcing piece are bonded to the inner side of the blind window of the side wall outer plate, the first reinforcing piece covers the first supporting area, the second supporting area and the third supporting area, and the second reinforcing piece covers the anti-concave support area. According to the invention, the concave resistance is improved while the appearance deformation is avoided, so that the dual requirements of the passenger car on the appearance delicacy and the structural reliability are met.

Description

Technical Field

[0001] This invention relates to the field of passenger vehicle body design technology, and in particular to a side blind window structure and assembly process for a vehicle body. Background Technology

[0002] Side blind windows are enclosed structures installed on the sides of vehicle bodies, primarily used in rugged SUVs and other similar vehicles to achieve specific aesthetic effects. Currently, most commercial vehicle blind windows employ either a split window panel welded to the body or a single stamped form, which, while achieving a sealing function, still has significant shortcomings:

[0003] Uneven distribution and insufficient rigidity of the support structure can easily lead to warping and deformation of the appearance surface under painting, baking or external force. In areas with large curvature, insufficient stamping and drawing and insufficient material work hardening can easily cause abnormal vibration and noise during driving and poor resistance to dents. In addition, the additional finishing process to correct welding defects also makes the process complex and difficult to guarantee the consistency of appearance quality. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a side blind window structure and assembly process for a vehicle body, which can improve the anti-dent performance while avoiding appearance deformation, thereby meeting the dual requirements of passenger vehicles for appearance refinement and structural reliability.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions: A vehicle body side blind window structure includes: a side outer panel blind window, an inner panel assembly, and a reinforcing pad assembly; the inner panel assembly includes an inner panel body and an anti-dent bracket, a first support, a second support, and a third support are provided on the outer side of the inner panel body, the second support and the third support are arranged opposite to each other, and the anti-dent bracket is fixed on the outer side of the inner panel body and is arranged opposite to the first support; the reinforcing pad assembly includes a first reinforcing sheet and a second reinforcing sheet, the first reinforcing sheet and the second reinforcing sheet are bonded to the inner side of the side outer panel blind window, the first reinforcing sheet covers the areas of the first support, the second support, and the third support, and the second reinforcing sheet covers the area of ​​the anti-dent bracket.

[0006] Optionally, the inner plate body has a perforation, the first support is located on the front side of the perforation, the second support is located on the upper side of the perforation, the third support is located on the lower side of the perforation, and the anti-dent bracket is located on the rear side of the perforation.

[0007] Optionally, both the first reinforcing sheet and the second reinforcing sheet are rectangular structures, with the first reinforcing sheet located on the front side and arranged horizontally, and the second reinforcing sheet located on the rear side and arranged vertically.

[0008] Optionally, the first support, the second support, and the third support are all bent plates with hollowed-out edges bent toward the blind window of the side panel. The bent plate includes an extension section and a support section. The extension section extends obliquely toward the blind window of the side panel, and the support section is located at the end of the extension section and is parallel to the reinforcing piece.

[0009] Optionally, the bent plate has structural ribs, which are disposed on the extension section and arranged along the length direction of the extension section.

[0010] Optionally, the bending plate is provided with an adhesive application groove, which is located on the support section and is recessed inward in the direction away from the reinforcing sheet, and the adhesive application groove is filled with vibration damping adhesive.

[0011] Optionally, the anti-dent bracket is Z-shaped and includes a mounting part, an extension part, and a support part. The mounting part is welded to the blind window of the outer side panel, the extension part is provided with structural ribs, and the support part is provided with an adhesive groove.

[0012] Optionally, the first reinforcing sheet and the second reinforcing sheet are made of foamed material.

[0013] Optionally, both the first reinforcing sheet and the second reinforcing sheet are provided with grooves, and multiple grooves are provided on each reinforcing sheet.

[0014] This invention also provides an assembly process for the vehicle body side blind window structure as described above, including the following steps: A reinforcing sheet is pasted on the inside of the blind window of the side panel, so that the pasting position of the reinforcing sheet corresponds to the inner panel support area and the anti-dent bracket support area. Weld the anti-dent bracket to the inner panel body to form the D-pillar inner panel assembly, and apply vibration damping adhesive to the support area; Weld the inner panel assembly to the outer side panel to match the support area of ​​the inner panel assembly with the position of the reinforcing piece. The car body is painted and baked to cure the reinforcing sheet and the vibration damping adhesive simultaneously. Inspect the condition of the exterior surface.

[0015] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages: The side panel blind window structure of this invention achieves overall reinforcement through the cooperation of the outer side panel blind window, the inner panel assembly, and the reinforcing pad assembly. The inner panel assembly is arranged opposite to the anti-dent bracket via three support points on the outer side of the inner panel body, ensuring a balanced distribution of support force. The reinforcing pad assembly includes two reinforcing sheets, respectively covering the inner panel support area and the anti-dent bracket area, and is bonded to the outer side panel blind window. This layout utilizes the synergistic effect of the reinforcing sheets and sheet metal supports; the reinforcing sheets increase surface stiffness, and the sheet metal supports provide point support, jointly suppressing surface deformation caused by insufficient stamping and drawing. When the vehicle body undergoes painting baking or external pressure, the composite support system effectively disperses stress, avoiding permanent deformation caused by localized stress concentration. The corresponding coverage relationship between the reinforcing sheets and the support areas ensures targeted stiffness enhancement, while the anti-dent bracket, as an independent component, compensates for the support blind spots that the inner panel body cannot cover. By adopting this blind window structure in passenger vehicles, the problems of large-area deformation of the outer side panel blind window, abnormal noise from the blind window during dynamic road tests, and abnormal noise from pressure deformation during subjective evaluation are solved. The reinforcing plate solves the surface stiffness problem, the sheet metal support solves the support stiffness problem, and the sheet metal support and the reinforcing plate are matched and corresponded in position to meet the dual requirements of passenger vehicles for appearance refinement and structural reliability.

[0016] Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, the dimensions or spacing between the components are exaggerated to show the position of each component, and the schematic diagrams are for illustrative purposes only.

[0018] Figure 1 This is an exploded view of the side blind window provided in an embodiment of the present invention; Figure 2 This is an assembly diagram of the side blind window provided in an embodiment of the present invention; Figure 3 This is a schematic diagram showing the relative positions of the second support, the third support, and the first reinforcing sheet provided in an embodiment of the present invention; Figure 4 This is a schematic diagram showing the relative positions of the first support and the first reinforcing sheet provided in an embodiment of the present invention; Figure 5 This is a schematic diagram showing the relative positions of the anti-dent support and the second reinforcing sheet provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the first and second reinforcing sheets provided in an embodiment of the present invention; Figure 7 This is a schematic diagram showing the relative positions of the inner plate assembly and the reinforcing plate provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structural ribs and adhesive coating groove provided in an embodiment of the present invention; In the diagram: 1. Side panel blind window; 2. Reinforcing pad assembly; 21. First reinforcing plate; 22. Second reinforcing plate; 3. Anti-dent bracket; 4. Inner panel assembly; 41. Second support; 42. Third support; 43. First support; 44. Structural rib; 45. Adhesive application groove; 5. Vibration damping adhesive; Detailed Implementation It should be noted that the following detailed description is illustrative and intended to provide an explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] Example 1 Blind windows on the side of a vehicle are enclosed structures installed on the side of the vehicle body to replace the traditional four corner windows at the rear D-pillar. They are mainly used in passenger vehicles with specific aesthetic requirements, such as the rugged visual effect of hardcore SUVs. Their working principle is to achieve vehicle enclosure through a stable connection between the blind window structure and the side of the vehicle body, while simultaneously meeting styling requirements. With the increasing market share of hardcore off-road vehicles and the growing acceptance of boxy models, the demand for blind window structures is increasing. However, the adaptability of existing technology in the passenger vehicle sector still has shortcomings.

[0020] In existing technologies, various blind window structure solutions have emerged in the commercial vehicle sector. Typical structures include using a split blind window panel welded to the vehicle body panel via connecting beams, or forming a single, integral blind window area by stamping on the outer side panel. In this type of solution, the edge of the blind window panel is welded to the vehicle frame, and an internal U-shaped support beam is installed to enhance local rigidity. The connecting beams are typically located at the upper and lower edges of the blind window panel and are fixed using laser welding. While the integral stamping process reduces the number of parts, the blind window stop needs to be welded to the inner side panel using a concave structure.

[0021] The aforementioned solution focuses on achieving a closed body structure and controlling production costs. However, due to uneven distribution and insufficient rigidity of the support structure, it is prone to warping and deformation of the exterior surface under the thermal stress of painting and baking. It is also susceptible to plastic deformation during external pressure or vehicle transportation. Secondly, insufficient material work hardening in the high-curvature blind window area due to inadequate stamping and drawing results in frequent vibrations and abnormal noises during dynamic driving, and the local dent resistance is insufficient to meet the perceived quality requirements of passenger vehicles. Furthermore, the subsequent finishing processes such as sanding and puttying used to compensate for weld defects not only increase the complexity of the process but also make it difficult to guarantee consistent appearance quality.

[0022] The main sources of appearance deformation are: insufficient support, deformation during painting and baking; insufficient support, deformation due to external pressure; and insufficient support, deformation during transport of the body-in-white. The main sources of dent resistance are: insufficient stamping and drawing, vibration during road testing; and insufficient support, abnormal noise from external pressure or knocking.

[0023] The structure in this embodiment is mainly supported by an inner plate structure, achieving four-sided support without adding parts or increasing costs. Reinforcing sheets (butyl reinforcing sheets) are added, employing a cracked groove and edge-rendering process to release internal stress. The addition of foam material to the reinforcing sheets significantly improves local stiffness and dent resistance. Deformation and dent resistance are contradictory in actual matching; through matching and verification of various dimensions, a balanced and optimal solution is obtained.

[0024] like Figure 1 , Figure 2 As shown, this embodiment proposes a vehicle body side blind window structure, including a side outer panel blind window 1, an inner panel assembly 4, and a reinforcing pad assembly 2.

[0025] like Figure 7 , Figure 8 As shown, the inner panel assembly 4 includes an inner panel body and an anti-dent bracket 3. A first support 43, a second support 41, and a third support 42 are provided on the outer side of the inner panel body. The second support 41 and the third support 42 are arranged opposite to each other. The anti-dent bracket 3 is fixed to the outer side of the inner panel body and is arranged opposite to the first support 43. The reinforcing pad assembly 2 includes a first reinforcing sheet 21 and a second reinforcing sheet 22. The first reinforcing sheet 21 and the second reinforcing sheet 22 are bonded to the inner side of the blind window 1 of the outer side panel. Figure 3 , Figure 4 , Figure 5 As shown, the first reinforcing piece 21 covers the areas of the first support 43, the second support 41 and the third support 42, and the second reinforcing piece 22 covers the area of ​​the anti-dent support 3.

[0026] The blind window 1 on the outer side panel serves as an aesthetic component, fulfilling styling requirements. The inner panel body in the inner panel assembly 4 forms basic support on the front, upper, and lower sides of the blind window through the installation of a first support 43, a second support 41, and a third support 42. The anti-dent bracket 3 is fixed to the outer side of the inner panel body and opposite to the first support 43, forming supplementary support on the rear side of the blind window. Together, they constitute a four-sided support structure. The first reinforcing piece 21 and the second reinforcing piece 22 of the reinforcing pad assembly 2 are respectively bonded to the inner side of the blind window 1 on the outer side panel, covering the support area and the anti-dent bracket 3 area, ensuring a corresponding fit between the sheet metal support and the reinforcing piece.

[0027] The four-sided support structure solves the problems caused by insufficient support in the existing technology, such as deformation caused by lack of support during painting and baking, denting when pressed by external force, and deformation during the transportation of the body-in-white. The corresponding cooperation between the reinforcing plate and the sheet metal support can transfer the rigidity of the support to the outer panel of the blind window, improve the overall dent resistance of the blind window, solve the problems of poor dent resistance caused by insufficient stamping and drawing, as well as vibration and abnormal noise during road testing and pressing by external force. At the same time, the structure does not add any extra parts, thus achieving cost control.

[0028] like Figure 8 As shown, the inner plate body has a hollowed-out section, the first support 43 is located on the front side of the hollowed-out section, the second support 41 is located on the upper side of the hollowed-out section, the third support 42 is located on the lower side of the hollowed-out section, and the anti-dent bracket 3 is located on the rear side of the hollowed-out section.

[0029] The hollow design reduces weight, and the ring arrangement of the support and anti-dent bracket 3 improves the stability of the support. When the blind window is pressed by external force, the ring support can distribute the force to each support point, reducing the dent caused by excessive local force, and also reducing the vibration caused by insufficient local support during road testing.

[0030] Both the first reinforcing piece 21 and the second reinforcing piece 22 are rectangular structures. The first reinforcing piece 21 is located on the front side and is arranged horizontally, while the second reinforcing piece 22 is located on the rear side and is arranged vertically.

[0031] The first reinforcing plate 21 is arranged horizontally on the front side, covering the area formed by the three support points, and the second reinforcing plate 22 is arranged vertically on the rear side, corresponding to the anti-dent bracket 3 area. The rectangular structure facilitates standardized production, and its long side direction is consistent with the support span direction, improving material utilization efficiency. The horizontal and vertical intersecting arrangement forms a cross-shaped reinforcement layer on the surface of the blind window, complementing the dot matrix layout of the sheet metal support and suppressing deformation tendencies at different locations.

[0032] The first support 43, the second support 41 and the third support 42 are all bent plates with hollowed-out edges that bend toward the blind window 1 of the side panel. The bent plate includes an extension section and a support section. The extension section extends obliquely toward the blind window 1 of the side panel, and the support section is located at the end of the extension section and is parallel to the reinforcing piece.

[0033] The bent plate's structural design solves the problems of insufficient rigidity and stress concentration in existing flat plate supports, improving the stability and service life of the support. Simultaneously, the parallel fit between the support section and the reinforcing plate ensures effective force transfer, enhances the dent resistance of the blind window, and reduces vibration during road testing. The bent plate can be integrally formed with the inner panel body through a stamping process, ensuring structural strength. The inclination angle of the extension section can be set according to the distance between the inner panel body and the blind window 1 of the outer side panel, generally to allow the support section and the reinforcing plate to fit tightly together.

[0034] The bent plate has structural ribs 44, which are disposed on the extension section and arranged along the length of the extension section.

[0035] The inclined design of the extension section disperses external forces, while structural rib 44 enhances the bending resistance of the extension section. The parallel force transmission between the support section and the reinforcing plate, together with these three elements, ensures the stability of the support and reduces support failure caused by deformation of the extension section, thereby preventing local deformation or abnormal noise during road testing of the blind window. The structural rib 44 can be integrally stamped with the bending plate, and its cross-sectional shape can be semi-circular or rectangular.

[0036] The bending plate is provided with an adhesive groove 45, which is located on the support section and is recessed inward in the direction away from the reinforcing sheet. The adhesive groove 45 is filled with vibration damping adhesive 5.

[0037] The adhesive groove 45 is located on the support section, allowing the vibration damping adhesive 5 to form an elastic sandwich between the support section and the reinforcing sheet. This sandwich structure absorbs micro-vibration energy, reducing the risk of abnormal noise caused by high-frequency vibration. The damping characteristics of the vibration damping adhesive 5 complement those of the reinforcing sheet, ensuring both static support strength and improving dynamic vibration performance.

[0038] The anti-dent bracket 3 is Z-shaped and includes an installation part, an extension part, and a support part. The installation part is welded to the blind window 1 of the outer side panel. The extension part is provided with structural ribs 44, and the support part is provided with adhesive grooves 45.

[0039] The Z-shaped anti-dent bracket 3 can effectively supplement the support of the inner panel body on the rear side of the blind window, forming a complete four-sided support system with the support of the front, upper and lower sides of the inner panel body, reducing the deformation of the blind window; the structural ribs 44 of the extension and the vibration isolation adhesive 5 of the support optimize the performance of the anti-dent bracket 3 from the perspectives of enhancing rigidity and reducing vibration, respectively, and work together with the blind window 1 of the side outer panel and the second reinforcing piece 22 to improve the anti-dent performance and sound insulation effect of the blind window.

[0040] The first reinforcing sheet 21 and the second reinforcing sheet 22 are made of foamed material. The lightweight characteristics of foamed material avoid the impact of increased blind window weight on the overall performance of the vehicle body. Its stiffness-enhancing characteristics directly improve the dent resistance of the blind window. In conjunction with the support structure of the inner panel assembly 4, it can more effectively resist the impact of external pressure and road test vibration, and reduce blind window deformation.

[0041] like Figure 6 As shown, both the first reinforcing sheet 21 and the second reinforcing sheet 22 are provided with grooves, and multiple grooves are formed on each reinforcing sheet. The groove design solves the problem of blind window deformation caused by the internal stress of the reinforcing sheet during curing. At the same time, since the groove only serves to release stress and does not damage the overall structure of the reinforcing sheet, the reinforcing sheet can still maintain good rigidity. It works synergistically with the properties of the foamed material to reduce deformation while continuing to provide anti-dent support for the blind window.

[0042] The blind window structure in this embodiment mainly utilizes steel plate support and a combination of polymer composite materials to fully leverage the advantages of both steel plates and polymer materials. Steel plates offer high strength and high modulus, while polymer composite materials offer lightweight, high strength, easy assembly, corrosion resistance, and high design flexibility. The combined use of both achieves a balance and optimization of cost and quality.

[0043] The side panel blind window 1 is a styling and appearance component. According to the definition of styling, the size and curvature of the blind window are determined. The design defines the curvature as ≤10000mm, which can ensure sufficient drawing of the stamped part and achieve the effect of work hardening; the V23 model's blind window has an X-direction curvature of 18000mm, and the surface deformation is more serious.

[0044] The reinforcing pad assembly 2 mainly uses two reinforcing sheets, made of epoxy resin, curing agent, fiberglass cloth, rubber, and foaming material. The resin is extruded and then bonded to the fiberglass cloth. During use, the reinforcing sheets are attached to the areas requiring reinforcement. After high-temperature baking and curing, the reinforcing sheets form a composite structure with the sheet metal, reinforcing the bonded area and increasing rigidity. The curing of epoxy resin is a chemical cross-linking process; the van der Waals forces between molecules become covalent bonds in the polymer, resulting in volume shrinkage. This volume shrinkage generates curing shrinkage stress. The curing reaction of the reinforcing sheets is exothermic, and internal stress is also generated during curing and cooling. Furthermore, the different coefficients of thermal expansion between the reinforcing sheets and the sheet metal increase the internal stress generated during the cooling stage. The presence of internal stress between the reinforcing sheets and the sheet metal causes sheet metal deformation. To address the internal stress in the reinforcing sheets, a varying number of grooves are added to the middle area to release this stress. The V23 model passed verification, employing verification schemes with 4 and 5 grooves respectively, which can simultaneously improve rigidity and reduce deformation. Figure 6 These are the detailed dimensions of the two types of reinforcing sheets. The reinforcing sheet used in V23 is made of foamed material with a density ≤1.3kg / mm3, initial peel force ≥3.0N / 25mm, shear strength after curing ≥2.0Mpa, and reinforcement ratio ≥2.5. The reinforcing sheet is compatible with pretreatment solution and electrophoresis solution.

[0045] The anti-dent bracket 3 is a localized support bracket. In areas with poor local rigidity, additional brackets are needed to support the surface of the blind window and improve the local anti-dent performance. The design defines that the anti-dent bracket 3 and the blind window have a 3mm gap. The support surface of the bracket has a pre-reserved glue application groove 45. The anti-dent bracket 3 itself needs to have good rigidity. The material thickness is defined as DC04 / 1.2mm. The dimension of the support surface is defined as a surface profile of ±0.5mm. The design and definition of the anti-dent bracket 3 are based on CAE anti-dent analysis and subjective evaluation of the actual object. It is conventionally defined in the middle area and staggered from the support surface of the inner panel support.

[0046] The inner panel of the D-pillar is defined to provide support and improve anti-dent performance, similar in function to the anti-dent bracket 3, but it can be integrated into the inner panel to achieve one-piece molding, reduce costs and improve process efficiency. In this embodiment, three support surfaces are used, which are arranged at the front, top and bottom positions respectively. In order to improve the rigidity of the support, through structural ribs 44 are added to the support. Similarly, glue grooves 45 are set on the support surfaces, and the size definition is similar to that of the anti-dent bracket 3.

[0047] The verification scheme for the reinforcing patch is as follows: (1) Attach a rectangular reinforcing sheet with dimensions of 400mm×300mm and a material thickness of 0.8mm to the outer side panel; (2) Attach 3 long strip reinforcing plates to the outer side panel, with a size of 70mm×400mm and a material thickness of 0.8mm, with lace and 5 grooves; (3) Attach 4 square reinforcing plates to the side panel, with a size of 200mm×150mm and a material thickness of 0.8mm, with lace and 8 grooves; (4) Attach 4 square reinforcing plates to the side panel, TCAP-B glue, size 200mm×150mm, material thickness 1.0, lace edge + 5 grooves; (5) Attach 4 square reinforcing plates to the side panel, TCAP-A glue, size 200mm×150mm, material thickness 1.0, lace edge + 5 grooves; (6) Attach 4 square reinforcing plates to the side panel, with a size of 200mm×150mm and a material thickness of 1.0mm, with lace and 6 grooves; (7) Attach two reinforcing plates to the side panel, with dimensions of 100mm×230mm and 160mm×200mm and a material thickness of 0.8mm; without lace, with 4 / 6 grooves respectively; Scheme (1) has sufficient anti-dent resistance for the blind window after overcoating, but the deformation is relatively large; Schemes (4), (5), and (6) have sufficient anti-dent resistance for the blind window after overcoating, but the deformation is small; Scheme (2) has insufficient anti-dent resistance after overcoating, but no deformation; Schemes (3) and (7) have sufficient anti-dent resistance after overcoating, but no deformation; Scheme (7) has the lowest overall cost and is the final scheme; By adopting Scheme (7), the problems of appearance deformation and anti-dent resistance can be completely solved, and the overall cost is optimal.

[0048] Example 2 This embodiment provides an assembly process for a vehicle body side blind window structure, including the following steps: A reinforcing sheet is pasted on the inside of the blind window of the side panel, so that the pasting position of the reinforcing sheet corresponds to the inner panel support area and the anti-dent bracket support area. Weld the anti-dent bracket to the inner panel body to form the D-pillar inner panel assembly, and apply vibration damping adhesive to the support area; Weld the inner panel assembly to the outer side panel to match the support area of ​​the inner panel assembly with the position of the reinforcing piece. The car body is painted and baked to cure the reinforcing sheet and the vibration damping adhesive simultaneously. Inspect the condition of the exterior surface.

[0049] This process can effectively solve the problems of appearance deformation, poor dent resistance and complex process of blind windows in the existing technology, and realize high-quality assembly of blind window structure.

[0050] The specific assembly process of the entire structure is as follows: (1) The reinforcing sheet is pasted on the blind window area of ​​the outer side panel, and the bonding position corresponds to the inner panel support area and the anti-dent bracket support area; (2) The anti-dent bracket is welded to the D-pillar inner panel body to form the D-pillar inner panel assembly. The anti-dent bracket / inner panel support is coated with vibration damping adhesive according to the definition. (3) The inner panel assembly of the D-pillar is welded to the outer panel of the side wall, and the support area matches the position of the reinforcing piece; (4) The body frame is coated and baked. The reinforcing sheet is baked and cured, and the vibration damping adhesive on the support surface is cured. (5) Inspect the surface appearance and subjectively evaluate the anti-dent effect.

[0051] The main control elements are as follows: The curvature of the blind window surface on the side panel should be ≤10000mm; The design of the reinforcing sheet can use a grooved design to release internal stress, and use a lace-like process to improve the fit between the reinforcing sheet and the sheet metal and reduce deformation; to improve the dent resistance, foamed reinforcing sheets are preferred, and a thickness of 0.8mm is preferred.

[0052] The support structure design improves structural rigidity, incorporates anti-dent through-structure ribs, increases leg width, and reserves a 3mm gap between the support surface and the blind window surface for filling with vibration damping adhesive. The vibration damping adhesive selected at a ratio of 85% provides higher dent resistance.

[0053] While the specific embodiments of the present invention have been described above, they are not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A vehicle side blind window structure, characterized in that, include: Side panel blind window, inner panel assembly and reinforcement pad assembly; The inner panel assembly includes an inner panel body and an anti-dent bracket. A first support, a second support, and a third support are provided on the outer side of the inner panel body. The second support and the third support are arranged opposite to each other. The anti-dent bracket is fixed on the outer side of the inner panel body and is arranged opposite to the first support. The reinforcing pad assembly includes a first reinforcing sheet and a second reinforcing sheet, which are bonded to the inside of the blind window of the side panel. The first reinforcing sheet covers the first support, second support, and third support areas, and the second reinforcing sheet covers the anti-dent bracket area.

2. The vehicle body side blind window structure as described in claim 1, characterized in that, The inner plate body has a hollowed-out section. The first support is located on the front side of the hollowed-out section, the second support is located on the upper side of the hollowed-out section, the third support is located on the lower side of the hollowed-out section, and the anti-dent bracket is located on the rear side of the hollowed-out section.

3. The vehicle body side blind window structure as described in claim 2, characterized in that, Both the first reinforcing plate and the second reinforcing plate are rectangular structures. The first reinforcing plate is located on the front side and is arranged horizontally, while the second reinforcing plate is located on the rear side and is arranged vertically.

4. The vehicle body side blind window structure as described in claim 2, characterized in that, The first support, the second support, and the third support are all bent plates with hollowed-out edges that bend toward the blind window of the side panel. Each bent plate includes an extension section and a support section. The extension section extends obliquely toward the blind window of the side panel, and the support section is located at the end of the extension section and is parallel to the reinforcing piece.

5. The vehicle body side blind window structure as described in claim 4, characterized in that, The bent plate has structural ribs, which are arranged on the extension section and along the length of the extension section.

6. The vehicle body side blind window structure as described in claim 4, characterized in that, The bending plate is provided with an adhesive groove, which is located on the support section and is recessed inward in the direction away from the reinforcing sheet. The adhesive groove is filled with vibration damping adhesive.

7. The vehicle body side blind window structure as described in claim 4, characterized in that, The anti-dent bracket is Z-shaped and includes an installation part, an extension part, and a support part. The installation part is welded to the blind window of the outer side panel. The extension part is provided with structural ribs, and the support part is provided with an adhesive groove.

8. The vehicle body side blind window structure as described in claim 1, characterized in that, The first and second reinforcing sheets are made of foamed materials.

9. The vehicle body side blind window structure as described in claim 8, characterized in that, Both the first and second reinforcing plates are provided with grooves, and multiple grooves are opened on each reinforcing plate.

10. An assembly process for a vehicle body side blind window structure as described in any one of claims 1-9, characterized in that, Includes the following steps: A reinforcing sheet is pasted on the inside of the blind window of the side panel, so that the pasting position of the reinforcing sheet corresponds to the inner panel support area and the anti-dent bracket support area. Weld the anti-dent bracket to the inner panel body to form the D-pillar inner panel assembly, and apply vibration damping adhesive to the support area; Weld the inner panel assembly to the outer side panel to match the support area of ​​the inner panel assembly with the position of the reinforcing piece. The car body is painted and baked to cure the reinforcing sheet and the vibration damping adhesive simultaneously. Inspect the condition of the exterior surface.

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