Thermal insulation panel for vehicles

Abstract

The utility model relates to a kind of heat insulation plates for vehicle, including the first part fixed to the vehicle body, the second part inclinedly arranged relative to the first part, the reinforcing rib portion formed across the first part and the second part,And the fastening hole formed in the reinforcing rib portion and passed by fastener. Therefore, the rigidity and shape accuracy of the heat insulation plate can be improved without increasing the number of fastening points.

Description

Technical Field

[0001] The technology disclosed herein relates to a heat insulation panel for vehicles. Background Technology

[0002] At the bottom of the vehicle, heat sources such as the engine and exhaust pipe are located. It is conventionally known to install heat shields to prevent heat from these heat sources from being transferred to the vehicle body (e.g., Japanese Patent Application Publication No. 2013-6503).

[0003] Heat insulation panels are typically formed by stamping thin sheet metal and then secured to the vehicle frame or similar structure using multiple fasteners. However, in recent years, to improve heat insulation performance, heat insulation panels have become increasingly larger. Using the same number of fasteners as before results in insufficient overall rigidity, making them prone to deformation due to vibration or external forces. Furthermore, during the forming process, the material undergoes elastic recovery after bending, resulting in a springback phenomenon that makes it difficult to ensure the desired shape accuracy.

[0004] As mentioned above, in traditional heat shields, rigidity decreases with increasing size, making it difficult to ensure strength without increasing the number of fastening points. Furthermore, the shape accuracy of the heat shield decreases due to springback after bending, compromising its adaptability to the complex shapes of the lower part of the vehicle body. Utility Model Content

[0005] Therefore, the objective of this invention is to provide a heat insulation plate for vehicles that can improve the rigidity and shape accuracy of the heat insulation plate without increasing the number of fastening points.

[0006] This utility model provides a heat insulation panel for vehicles, comprising: a first portion fixed to the vehicle body; a second portion inclined relative to the first portion; a reinforcing rib formed across the first and second portions; and a fastening hole formed in the reinforcing rib and through which a fastener passes. By continuously forming the reinforcing rib between the first and second portions, the rigidity of the two portions and their connection can be improved. Furthermore, by providing fastening holes in the reinforcing rib, the load concentration near the fastening portion can be reinforced, thereby ensuring sufficient strength without increasing the number of fastening points. In addition, since the reinforcing rib is also formed in the bending portion, springback can be suppressed, improving the shape accuracy after forming. Thus, the problems of insufficient strength and formability inherent in conventional heat insulation panels can be solved simultaneously.

[0007] Preferably, the reinforcing rib may be formed by a first reinforcing rib formed in the first portion and a second reinforcing rib formed in the second portion.

[0008] Preferably, the fastening hole may be formed in the first reinforcing rib. Attached Figure Description

[0009] Figure 1 This is a 3D view of the insulation panel. Detailed Implementation

[0010] The embodiments of this utility model are described with reference to the accompanying drawings.

[0011] Figure 1 This is a perspective view of a vehicle heat insulation plate 10 according to an embodiment of the present invention. The heat insulation plate 10 is disposed on the lower part of the vehicle body and arranged to cover heat sources such as the engine or exhaust pipe. The heat insulation plate 10 is positioned between the heat source and the vehicle body and is a heat insulation component used to suppress heat transfer from the heat source to the vehicle body. The heat insulation plate 10 is formed into a predetermined three-dimensional shape, for example, by stamping a sheet of metal.

[0012] The heat insulation plate 10 includes a flat first part 11 fixed to the vehicle body, a flat second part 12 inclined relative to the first part 11, a reinforcing rib 13 integrally formed across the first part 11 and the second part 12, and a fastening hole 14 formed in the reinforcing rib 13.

[0013] Part 11 is a plate-like section arranged along the bottom surface of the vehicle, such as... Figure 1 It extends along a predetermined direction (left-right direction on the paper). One end of the first part 11 ( Figure 1 The right end of the plate is connected to the second part 12 and has a fastening hole 14 extending along the thickness direction. The fastening hole 14 is a hole for inserting fasteners such as bolts to fix the heat insulation plate 10 to the vehicle body.

[0014] The second part 12 is disposed adjacent to the first part 11 and extends in an inclined posture relative to the first part 11. The angle between the plate surface of the first part 11 and the plate surface of the second part 12 is a predetermined angle other than 180 degrees, so that the heat insulation plate 10 is three-dimensionally formed to adapt to the concave and convex shape of the lower part of the vehicle body.

[0015] The reinforcing rib 13 is a pressed shape protruding from the surface of the first part 11 and the second part 12, serving as a reinforcing structure to improve the overall rigidity of the insulation board 10. The reinforcing rib 13 extends along... Figure 1 The reinforcing rib extends horizontally across the paper surface and is continuously formed across the connection between the first part 11 and the second part 12. In other words, the reinforcing rib 13 is formed by the continuous connection of the first reinforcing rib 13A formed in the first part 11 and the second reinforcing rib 13B formed in the second part 12, forming an integral reinforcing rib.

[0016] The fastening hole 14 is formed on the first reinforcing rib portion 13A and is a hole that penetrates through the thickness direction of the reinforcing rib portion 13. By inserting fasteners such as bolts through the fastening hole 14, the heat insulation plate 10 can be reliably fixed to the vehicle body frame, etc.

[0017] The heat insulation plate 10 of this utility model is characterized in that fastening holes 14 are provided on the reinforcing rib portion 13, and the reinforcing rib portion 13 is formed spanning the first portion 11 and the second portion 12. Thus, reinforcement can be provided simultaneously for the vicinity of the fastening portion and the bent connection portion.

[0018] In traditional insulation panels, with their increasing size, it becomes difficult to ensure strength without increasing the number of fasteners. Deformation around the fasteners and stress concentration caused by vibration become problems. In addition, springback occurs during the forming of the insulation panel, and the angle of the bent portion recovers from the design value, leading to a decrease in installation accuracy.

[0019] In contrast, in the heat insulation plate 10 of this invention, since the reinforcing rib 13 is formed to include fastening holes 14, the area where the fastener is under concentrated load can be reinforced by the reinforcing rib 13, thereby suppressing local deformation. As a result, sufficient rigidity can be ensured without increasing the number of fastening points.

[0020] Furthermore, since the reinforcing rib 13 is also formed at the connection between the first part 11 and the second part 12, it has the effect of suppressing springback during bending processing. In other words, by reinforcing the connection with the reinforcing rib 13, the angular change caused by the elastic recovery of the material can be suppressed, thereby maintaining high shape accuracy after forming.

[0021] Furthermore, by extending the reinforcing rib 13 to the rear end of the second part 12, the overall rigidity of the heat insulation plate 10 can be uniformly improved. Thus, even under vibration loads or external forces during driving, it can exhibit excellent deformation suppression effects.

[0022] Therefore, according to this embodiment, by configuring the reinforcing rib 13 to include the fastening hole 14 and forming it across the first portion 11 and the second portion 12, the strength and formability of the heat insulation board can be improved simultaneously without increasing the number of fastening points. Furthermore, this structure is also applicable to other types of heat insulation boards, such as PKB heat insulation boards covering exhaust system components, exhibiting high versatility.

Claims

1. A heat shield for a vehicle, characterized by comprising: include: The first part fixed to the vehicle body; The second part is tilted relative to the first part; The reinforcing ribs that span the first part and the second part; as well as Fastening holes formed in the reinforcing rib and through which fasteners pass.

2. The thermal shield for a vehicle according to claim 1, characterized by The reinforcing rib is formed by continuously providing a first reinforcing rib formed in the first part and a second reinforcing rib formed in the second part.

3. The vehicle heat insulation panel according to claim 2, characterized in that, The fastening hole is formed in the first reinforcing rib.

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