Heat insulation plate and vehicle

Abstract

The utility model relates to the technical field of automobile parts, and provides a heat insulation board and a vehicle, the heat insulation board comprises a heat insulation board body, the heat insulation board body comprises an air guide surface, the air guide surface is recessed towards the direction away from the windward direction to form a groove, the notch of the groove forms an air inlet, and the air inlet is communicated with the air guide surface. And at least one air outlet is formed in the circumferential groove wall of the groove. Therefore, the impact force of airflow on the heat insulation plate can be reduced, the probability of deformation and even cracking of the heat insulation plate is reduced, and the service life of the heat insulation plate is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially to a heat insulation plate and vehicle. BACKGROUND

[0002] In the running process of the internal combustion engine automobile, the engine and the exhaust system will generate a large amount of heat due to fuel combustion and high-temperature gas flow, and the surface and the surrounding area temperature can reach hundreds of degrees. The high-temperature environment easily leads to accelerated aging, softening and even carbonization of the non-high-temperature-resistant parts such as plastic wire harness, rubber sealing element and oil pipeline around, and may also cause performance degradation of electronic components and abnormal temperature rise in the cabin.

[0003] Therefore, the industry generally adds an aluminum or steel-aluminum composite material heat insulation plate around the exhaust system for heat insulation protection, which blocks the radiant heat between the high-temperature components and the surrounding parts to form a physical isolation layer. Such heat insulation plates are usually designed in a whole body, but this design makes the heat insulation plate form a large windward surface, which will be continuously impacted by strong airflow when the vehicle is running at high speed. Over a long period of time, the heat insulation plate is prone to deformation or even cracking. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art to some extent.

[0005] Therefore, the utility model provides a heat insulation plate and vehicle, which can reduce the impact of airflow on the heat insulation plate, reduce the probability of deformation or even cracking of the heat insulation plate, and thus improve the service life of the heat insulation plate.

[0006] To achieve the above purpose, the utility model provides a heat insulation plate in the first aspect, which comprises: a heat insulation plate body, the heat insulation plate body comprises a wind guide surface, the wind guide surface is recessed to form a groove in the direction away from the wind, the groove opening forms an air inlet, and at least one air outlet is formed on the circumferential groove wall of the groove.

[0007] The heat insulation plate of the utility model is provided with a special wind guide surface and a ventilation groove corresponding to the wind guide surface. During the running of the vehicle, the wind guide surface can guide the impact of airflow, reduce the impact strength of airflow and the resistance during the running of the vehicle, and form a flow guide channel by the groove. The channel can effectively disperse and guide the airflow directly impacting on the wind guide surface to the inside of the groove. Through the air inlet and the air outlet, the airflow is directed and discharged, so that the direct impact of airflow on the heat insulation plate body is significantly reduced, the probability of deformation or even cracking of the heat insulation plate is reduced, the service life of the heat insulation plate is improved, and the windward resistance of the heat insulation plate is reduced.

[0008] In addition, the heat insulation plate and vehicle provided in the above application can have the following additional technical features:

[0009] Specifically, the air guide surface is arranged at the edge position of the heat insulation plate body.

[0010] The edge of the heat insulation plate is usually a free boundary (not rigidly connected with other structures), in this case, when encountering airflow impact, the stress of the edge area cannot be effectively dispersed through adjacent structures, resulting in a significant increase in local stress, at the same time, when the airflow bypasses the heat insulation plate, flow field separation is prone to occur at the edge area, forming turbulence or vortex, which can cause a sharp fluctuation of local pressure at the edge area and generate significant dynamic load. Under the synergistic effect of the above factors, the heat insulation plate is usually deformed from the edge position of the heat insulation plate when subjected to the continuous impact of strong airflow. In the above scheme, the air guide surface is arranged at the edge position of the heat insulation plate body, that is, the groove is arranged at the edge position of the heat insulation plate body. The air guide surface can guide the airflow, reduce the concentrated impact force of the airflow on the edge position of the heat insulation plate body, thereby reducing the stress concentration phenomenon of the air guide surface at the edge area, reducing the flow field separation and turbulence intensity at the edge, weakening the amplitude of the dynamic load, and significantly reducing the deformation and damage risk of the edge area of the heat insulation plate body, thereby prolonging the service life of the heat insulation plate body.

[0011] Specifically, the air guide surface includes a first air guide surface arranged at the edge position of at least one side of the heat insulation plate body in the length direction, and the groove is arranged on the first air guide surface; and / or the air guide surface includes a second air guide surface arranged at the top edge position of the heat insulation plate body, and the groove is arranged on the second air guide surface.

[0012] In the above scheme, since the exhaust system is located below the heat insulation plate body, the first air guide surface at the edge of at least one side of the heat insulation plate body in the length direction and the second air guide surface at the top edge of the heat insulation plate body are arranged in a staggered manner with the exhaust system, so that the groove can not only reduce the heat convection transmission path to ensure the heat insulation effect, but also can guide the airflow, reduce the concentrated impact force of the airflow on the edge position of the heat insulation plate body, thereby reducing the stress concentration phenomenon of the air guide surface at the edge area, significantly reducing the deformation and damage risk of the edge area of the heat insulation plate body, and prolonging the service life of the heat insulation plate body.

[0013] Specifically, the groove includes a group of first grooves, each group of first grooves includes at least two first grooves arranged at intervals on the first air guide surface, and each first groove extends in the height direction of the heat insulation plate body.

[0014] In the above scheme, the first grooves arranged in groups are distributed at intervals, each first groove acts as an independent support unit, can share the wind pressure load, avoid local deformation, and the first grooves extending in the height direction can expand the length of the first grooves, further enhance the anti-deformation ability, at the same time, each first groove can also act as an independent flow guide channel to disperse the airflow to multiple paths, reduce the airflow speed of a single channel, thereby reducing the wind pressure concentration, and the first grooves arranged at intervals can avoid the mutual interference of the airflow, forming stable laminar flow, further reducing noise and vibration.

[0015] Specifically, the air outlet includes a first air outlet, the first groove includes two groove walls arranged in the height direction of the heat insulation plate body, and the first air outlet is arranged on the groove wall away from the center of the heat insulation plate body in the first groove.

[0016] In the above scheme, since the exhaust system is located below the heat insulation plate body, and the first air outlet is located on the groove wall away from the center of the heat insulation plate body in the first groove, that is, the first air outlet faces away from the exhaust system, that is, the first air outlet faces away from the heat source, it is difficult for heat to be directly transmitted to the upper area of the heat insulation plate through the first air outlet, which can effectively reduce the direct heat transmission path between the exhaust system and the first air outlet, so that heat is not easy to enter the upper part of the heat insulation plate through the first air outlet, avoiding the problem of heat damage caused by direct radiation of high-temperature exhaust to the protected member, thereby ensuring the heat insulation protection of the surrounding member.

[0017] Specifically, the groove includes at least two groups of second grooves, and the at least two groups of second grooves are arranged at intervals on the second air guide surface and extend in the length direction of the heat insulation plate body.

[0018] In the above scheme, the second grooves extend in the length direction of the heat insulation plate body, which can be matched with the shape of the heat insulation plate body and extend in the length direction, so that the size of the second grooves is expanded. The increase in size not only enhances the improvement of the structural strength of the second grooves to the heat insulation plate body, but also increases the area of the air outlet, thereby improving the air outlet guide effect.

[0019] Specifically, the air outlet includes a second air outlet, and the second air outlet is arranged on the top groove wall of the second groove.

[0020] In the above scheme, since the exhaust system is located below the heat insulation plate body, and the second air outlet is arranged on the top groove wall of the second groove, that is, the opening of the second air outlet faces away from the exhaust system (heat source), that is, it faces away from the heat source, so the second air outlet not only plays a simple flow guide and pressure relief role, but also reduces the transmission path with the heat source, thereby ensuring the heat insulation effect of the heat insulation plate on the surrounding member.

[0021] Specifically, the heat insulation plate body comprises a first mounting surface and a second mounting surface connected with each other, the air guide surface comprises a first air guide surface and a second air guide surface, the first air guide surface is arranged on both sides of the first mounting surface along the length direction, the second air guide surface is connected to the second mounting surface, and the first mounting surface and the second air guide surface are opposite to the extension direction of the second mounting surface.

[0022] In the above scheme, the first mounting surface is arranged to facilitate fixed connection with the rear subframe connecting plate, the second mounting surface is arranged to facilitate fixed connection with the gas tank connecting plate, and the second air guide surface is opposite to the extension direction of the second mounting surface, so that the second air guide surface and the second mounting surface jointly form a surrounding space, which effectively isolates the gas tank from the main muffler assembly below.

[0023] Specifically, the second mounting surface is provided with a plurality of first reinforcing ribs extending along the length direction of the heat insulation plate body and a plurality of second reinforcing ribs extending along the width direction of the heat insulation plate body, and the plurality of second reinforcing ribs and the plurality of first reinforcing ribs are arranged in a cross manner to form a grid structure.

[0024] In the above scheme, the first reinforcing ribs and the second reinforcing ribs are arranged in a cross manner to form a stable grid structure, which can significantly improve the overall strength and rigidity of the heat insulation plate body. When the heat insulation plate body is subjected to the impact of external airflow, the grid structure can more effectively disperse and resist stress, prevent the heat insulation plate from deforming or being damaged, and thus improve the impact resistance of the heat insulation plate.

[0025] The second aspect of the utility model provides a vehicle, comprising a main muffler assembly and the heat insulation plate of the first aspect of the embodiment, wherein the heat insulation plate is arranged close to the main muffler assembly and is used for blocking the heat generated by the main muffler assembly.

[0026] The vehicle provided by the utility model can reduce the impact force of airflow on the heat insulation plate, reduce the probability of deformation or even cracking of the heat insulation plate, and thus prolong the service life of the heat insulation plate. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments consistent with the present utility model and serve to explain the principles of the present utility model together with the specification.

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, and obviously, other drawings can also be obtained by those skilled in the art without any creative effort on the premise of not paying creative effort.

[0029] Figure 1 It is a structural schematic view of the heat insulation plate according to one embodiment of the present application;

[0030] Figure 2 It is a structural schematic view of the heat insulation plate according to one embodiment of the present application from another perspective;

[0031] Figure 3 It is a structural schematic view of the heat insulation plate according to one embodiment of the present application; Figure 2

[0032] Figure 4 It is a structural schematic view of the heat insulation plate according to one embodiment of the present application from another perspective;

[0033] Figure 5 It is a structural schematic view of the heat insulation plate according to one embodiment of the present application from another perspective;

[0034] Figure 6 It is a structural schematic view of the vehicle according to one embodiment of the present application.

[0035] As shown in the figure:

[0036] 1, heat insulation plate body; 10, air guide surface; 100, first air guide surface; 101, second air guide surface; 102, first mounting surface; 103, second mounting surface;

[0037] 2, groove; 20, first groove; 21, second groove; 200, air inlet; 201, first air outlet; 210, second air outlet;

[0038] 3, first reinforcing rib;

[0039] 4, second reinforcing rib;

[0040] 5, third reinforcing rib;

[0041] 1000, heat insulation plate; 2000, gas storage tank; 3000, gas storage tank connecting plate; 4000, main muffler assembly; 5000, rear auxiliary frame connecting plate; 6000, rear air spring;

[0042] 10000, vehicle. DETAILED DESCRIPTION

[0043] ​In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the following will further describe the present application. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0044] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced without the specific details, which are described herein in a way different from the description; obviously, the examples in the specification are only a part of the embodiments of the present application, not all the embodiments.

[0045] In the running process of the internal combustion engine automobile, the engine and the exhaust system will generate a large amount of heat due to fuel combustion and high-temperature gas flow, and the surface and the surrounding area temperature can reach hundreds of degrees. The high-temperature environment easily leads to the accelerated aging, softening and even carbonization of the non-high-temperature-resistant components such as plastic wire harness, rubber sealing element and oil pipeline around the high-temperature-resistant components, and at the same time, may cause the performance attenuation of electronic components and the abnormal temperature rise in the cabin.

[0046] Therefore, the industry generally increases the aluminum or steel-aluminum composite material heat insulation plate around the exhaust system for heat insulation protection, blocks the radiant heat between the high-temperature components and the surrounding parts, and forms a physical isolation layer. Such heat insulation plate usually adopts an integral design, and except for the necessary bolt fixing hole, the surface is rarely provided with through holes or hollow structures, so as to minimize the heat convection transmission path, ensure the heat insulation effect, however, such design makes the heat insulation plate form a large windward surface, when the vehicle is running at high speed, the heat insulation plate will be continuously impacted by strong airflow, and over a long period of time, the heat insulation plate is prone to deformation or even cracking.

[0047] In order to solve the above technical problems, the present application provides a kind of heat insulation plate and vehicle.The present application provides a kind of heat insulation plate and vehicle with reference to the drawings in the specification.

[0048] As Figures 1-6 The heat insulation plate 1000 of the first aspect embodiment of the present application can include a heat insulation plate body 1, wherein the heat insulation plate body 1 is formed by stamping, and the material of the heat insulation plate body 1 can be selected from aluminum or steel-aluminum composite material, etc., which has the advantages of light weight, good heat insulation effect and easy processing, and the material can be selected according to the actual situation (application scenario, performance requirement and cost budget, etc.).

[0049] The heat insulation plate body 1 includes a wind guide surface 10.

[0050] It should be noted that during vehicle operation, the heat insulation panel 1000 is subjected to strong airflow impact. To mitigate this impact, an air guide surface 10 is provided on the heat insulation panel body 1. This surface is used to receive and guide the oncoming airflow as the vehicle moves, thereby effectively reducing the impact force of the airflow and the drag during driving. The air guide surface 10 refers to the surface that receives and guides the oncoming airflow during vehicle operation.

[0051] The air guide surface 10 is recessed in the direction away from the windward direction to form a groove 2. It can be understood that the direction away from the windward direction refers to the direction away from the vehicle's driving direction.

[0052] In the above embodiments, the groove 2 can be manufactured using a stamping process. Pressure is applied to the insulation board body 1 using a mold, causing it to undergo plastic deformation, thereby obtaining the desired shape and size. The geometry of the groove 2 is diverse, and can be various shapes such as cuboids, cubes, cylinders, and trapezoids. The specific shape is not limited and can be flexibly selected according to the actual application scenario and specific design requirements. Furthermore, the raised geometry of the groove 2 forms a "reinforcing rib" effect in the material distribution, thereby improving the bending strength of the insulation board body 1.

[0053] For example, refer to Figure 1 The shape of groove 2 is a cuboid groove.

[0054] The groove 2 forms an air inlet 200, and at least one air outlet is opened on the circumferential groove wall of the groove 2. It can be understood that the circumferential groove wall refers to the annular side wall around the center line of the groove 2. The annular side wall starts from the edge of the groove (air inlet 200), extends along the width direction of the groove 2, and extends to the side wall opposite to the groove, forming a continuous circumferential wall surface.

[0055] For example, the design layout of the air outlet on the circumferential wall of the groove 2 has a certain degree of flexibility. It can be cleverly set in one or more locations such as the side wall, top wall, and oblique wall of the groove 2. For example, the design scheme of the air outlet can be selected to be opened only on one side wall, or it can be opened on both the left and right side walls simultaneously.

[0056] When the air outlet is opened on only one side, it means that the heat transfer path between the air outlet and the air outlet is restricted to one direction. Its advantage is that it can significantly reduce the heat transfer path between the air outlet and the exhaust system, which helps to reduce unnecessary heat exchange and improve the protection of surrounding components. These surrounding components may include the air tank 2000 and components such as fuel lines, brake lines, and cable harnesses.

[0057] At the same time, the unilateral air outlet can also accurately control the flow direction of the airflow, so that it more concentratedly acts on the target area, and meets the specific ventilation demand.

[0058] On the other hand, when the air outlet is arranged on the groove wall on the left and right sides, the air guiding effect of the airflow can be further enhanced. The bilateral air outlet design not only expands the coverage range of the airflow, but also enables the airflow to be more uniformly distributed inside the groove 2, thereby effectively reducing the impact force of the airflow on the heat insulation plate 1000.

[0059] Therefore, the layout design of the air outlet on the groove 2 can be flexibly adjusted according to the actual application scene and demand.

[0060] Specifically, during the driving of the vehicle, the airflow directly impacts on the heat insulation plate 1000, and the air guide surface 10 arranged on the heat insulation plate body 1 can effectively guide the airflow, not only effectively reducing the impact force of the airflow and prolonging the service life of the heat insulation plate 1000, but also reducing the resistance during the driving of the vehicle and improving the fuel economy during the driving of the vehicle. A flow guiding channel is formed by the groove 2, which can effectively disperse and guide the airflow directly impacting on the air guide surface 10 to the inside of the groove 2. Through the air inlet 200 and the air outlet, the airflow is directionally guided out, thereby significantly reducing the direct impact force of the airflow on the heat insulation plate body 1, and further reducing the structural fatigue risk of the heat insulation plate body 1 due to long-term bearing of the airflow impact. This design ingeniously solves the problem that the heat insulation plate 1000 is easily deformed or even cracked due to the continuous impact of the strong airflow during the high-speed driving of the vehicle, not only prolongs the service life of the heat insulation plate, but also reduces the wind resistance of the heat insulation plate.

[0061] In addition, the air outlet arranged on the circumferential groove wall of the groove 2 helps to reduce the contact between the heat generated by the exhaust system and the surrounding parts, reduces the heat convection transmission path, and ensures the heat insulation effect. At the same time, the geometric shape of the groove 2 also plays a role in strengthening the heat insulation plate body 1 in structure, significantly improving the bending strength of the heat insulation plate body 1, and further enhancing the impact resistance of the heat insulation plate 1000. This comprehensive design not only optimizes the airflow management, but also strengthens the mechanical properties of the heat insulation plate 1000, and provides more reliable and efficient heat insulation protection for the vehicle 10000.

[0062] In one embodiment of the present application, as shown in Figure 1 The air guide surface 10 is arranged at the edge position of the heat insulation plate body 1.

[0063] At present, the edge of the heat insulation plate 1000 is usually a free boundary (not rigidly connected with other structures), in this case, when encountering airflow impact, the stress of the edge area cannot be effectively dispersed through adjacent structures, thereby causing the local stress to be significantly increased, at the same time, when the airflow bypasses the heat insulation plate 1000, flow field separation is prone to occur at the edge area, forming turbulence or vortex, which can cause the local pressure at the edge area to fluctuate sharply and generate significant dynamic load. Under the synergistic effect of the above factors, the impact resistance of the edge position of the heat insulation plate 1000 is smaller than that of the middle position of the heat insulation plate 1000, and this characteristic makes the edge area more prone to deformation under the long-term impact of the airflow.

[0064] In order to solve this problem, the air guide surface 10 is arranged at the edge position of the heat insulation plate body 1, that is, the groove 2 is arranged at the edge position of the heat insulation plate body 1, which can guide the airflow and reduce the concentrated impact force of the airflow on the edge position of the heat insulation plate body 1, thereby reducing the stress concentration phenomenon of the air guide surface 10 at the edge area, and reducing the flow field separation and turbulence intensity at the edge, thereby weakening the amplitude of the dynamic load, so that the deformation and damage risk of the edge area of the heat insulation plate body 1 is significantly reduced, thereby prolonging the service life of the heat insulation plate body 1.

[0065] In an embodiment of the present application, as shown in Figure 1 The air guide surface 10 includes a first air guide surface 100 arranged at the edge position of at least one side of the heat insulation plate body 1 in the length direction, wherein it can be understood that the first air guide surface 100 can be located at one side edge of the heat insulation plate 1000 in the length direction, or can be simultaneously located at both side edges of the heat insulation plate 1000 to form a double-side design, which depends on the actual application scenario, for example, if the length direction of the heat insulation plate body 1 is the horizontal direction, then the first air guide surface 100 can be the left side, the right side, or the left and right sides.

[0066] The groove 2 is arranged on the first air guide surface 100.

[0067] In the above scheme, since the exhaust system is located directly below the heat insulation plate 1000, and the first air guide surface 100 is located at one side edge of the heat insulation plate body 1 in the length direction, the groove 2 and the exhaust system can be arranged in a staggered manner, that is, the heat convection transmission path is reduced to ensure the heat insulation effect, and at the same time, the air guide effect can be achieved, thereby reducing the stress concentration phenomenon of the first air guide surface 100 at the edge area, thereby reducing the deformation risk of the edge area of the heat insulation plate body 1 and prolonging the service life of the heat insulation plate body 1.

[0068] In another embodiment of the present application, as shown in Figure 1As shown in the drawings, the air guide surface 10 includes a second air guide surface 101 arranged at the edge of the top of the heat insulation plate body 1, and the groove 2 is arranged on the second air guide surface 101.

[0069] In the above scheme, since the second air guide surface 101 is located at the top of the heat insulation plate body 1, the staggered arrangement with the exhaust system can also be achieved, that is, the heat convection transmission path is reduced, the heat insulation effect is ensured, and the air guide effect can also be achieved, the stress concentration phenomenon of the edge area of the second air guide surface 101 is reduced, and thus the deformation risk of the edge area of the heat insulation plate body 1 is reduced, and the service life of the heat insulation plate body 1 is prolonged.

[0070] In another embodiment of the utility model, as shown in the drawings, Figure 1 As shown in the drawings, the air guide surface 10 includes a first air guide surface 100 arranged at the edge of at least one side of the heat insulation plate body 1 in the length direction, and the groove 2 is arranged on the first air guide surface 100; and the air guide surface 10 includes a second air guide surface 101 arranged at the edge of the top of the heat insulation plate body 1, and the groove 2 is arranged on the second air guide surface 101.

[0071] In the above optimization scheme, the air guide surface 10 includes two parts of the first air guide surface 100 and the second air guide surface 101, and the two parts are both provided with the groove 2. The distribution position of the groove 2 on the heat insulation plate body 1 is more diversified, and the design of multiple grooves 2 not only reduces the wind resistance and improves the passing efficiency of the airflow. Meanwhile, the existence of the groove 2 also plays a role in dispersing the airflow impact force, further improving the impact resistance of the heat insulation plate 1000 when facing high-speed airflow impact.

[0072] Specifically, the groove 2 of the first air guide surface 100 and the second air guide surface 101 is arranged, so that the airflow can flow along the groove 2 path when encountering the heat insulation plate 1000. This design effectively reduces the turbulence and vortex caused by airflow impact, thereby reducing the wind resistance and improving the passing efficiency of the airflow. Meanwhile, the existence of the groove 2 also plays a role in dispersing the airflow impact force, further improving the impact resistance of the heat insulation plate 1000 when facing high-speed airflow impact.

[0073] In an embodiment of the utility model, as shown in the drawings, Figure 1 As shown in the drawings, the groove 2 includes a group of first grooves 20, each group of first grooves 20 includes at least two first grooves 20 arranged at intervals on the first air guide surface 100, and each first groove 20 extends in the height direction of the heat insulation plate body 1. It can be understood that each group of first grooves 20 includes at least two, but the number is not limited to this, and the number of each group of first grooves 20 can also be three, four, five, six, etc. The size of the first groove 20 and the area of the first air guide surface 100 can be set, so that the flow path of the airflow can be optimized by reasonable layout of the first groove 20.

[0074] In the above scheme, the first grooves 20 arranged in groups are distributed at intervals, each first groove 20 acts as an independent support unit, can share the wind pressure load, avoid local deformation, and the first grooves 20 extending in the height direction can expand the length of the first grooves 20, further enhance the anti-deformation ability, at the same time each first groove 20 can also act as an independent flow guide channel, dispersing the airflow into multiple paths, reducing the airflow speed of a single channel, thereby reducing the wind pressure concentration, and the first grooves 20 arranged at intervals can avoid the mutual interference of the airflow, forming stable laminar flow, further reducing noise and vibration.

[0075] Further, as shown in Figure 1 , in the direction of the center of the heat insulation plate body 1 pointing outward, the extension length of the at least two first grooves 20 arranged in groups increases in turn, wherein it can be understood that the extension length increases in turn, that is, the length of the latter first groove 20 is greater than the length of the former first groove 20, forming a stepped arrangement. This design can maximize the design of multiple first grooves 20 according to the shape of the first air guide surface 100, so that the air outlet has greater ventilation effect, and at the same time the first grooves 20 of different lengths form a multi-level support structure in the height direction of the heat insulation plate body 1, which can better disperse the wind pressure load and improve the overall stability.

[0076] It should be noted that in the direction of the center of the heat insulation plate body 1 pointing outward, that is, in the direction of the first air guide surface 100 away from the first mounting surface 102 along the length direction of the heat insulation plate body 1.

[0077] In an embodiment of the present application, as shown in Figure 2 and Figure 3 , the air outlet includes a first air outlet 201, the first groove 20 includes two oppositely arranged groove walls arranged in the height direction of the heat insulation plate body 1, and the first air outlet 201 is opened on the groove wall away from the center of the heat insulation plate body 1 in the first groove 20.

[0078] In the above scheme, since the exhaust system is located below the heat insulation plate body 1, and the first air outlet 201 is located on the groove wall away from the center of the heat insulation plate body 1 in the first groove 20, that is, the first air outlet 201 faces away from the exhaust system, that is, the first air outlet 201 faces away from the heat source. Heat is difficult to directly transfer to the upper area of the heat insulation plate 1000 through the first air outlet 201, which can effectively reduce the direct heat transfer path between the exhaust system and the first air outlet 201, so that heat is not easy to enter the upper part of the heat insulation plate 1000 through the first air outlet 201, avoiding the problem of heat damage of the protected part caused by direct radiation of high-temperature exhaust, thereby ensuring the heat insulation protection of the surrounding parts.

[0079] As a possible case, when the first recess 20 is in the form of a trapezoidal body, the upper part of the trapezoidal body is wide and the lower part is narrow, and the opening of the upper part, i.e., the first air outlet 201, provides a wider outlet area than when the first recess 20 is in the form of a cuboid, so that the flaring of the first air outlet 201 can be increased, thereby accelerating the flow of gas.

[0080] In another embodiment of the present application, as shown in Figure 1 The recess 2 can include at least two groups of second recesses 21, wherein "at least two groups" means that the number of groups of second recesses 21 can be two, three, four, five or more, and the exact number is not limited, but is determined flexibly according to the area of the heat insulation plate body 1, the size of the second recess 21 and the specific design requirements.

[0081] For example, referring to Figure 1 , the recess 2 includes two groups of second recesses 21.

[0082] The at least two groups of second recesses 21 are arranged at intervals on the second air guide surface 101, and the second recesses 21 extend along the length direction of the heat insulation plate body 1, so that the size of the second recesses 21 can be enlarged according to the shape of the heat insulation plate body 1. The increase in size not only enhances the improvement of the structural strength of the second recess 21 to the heat insulation plate body 1, but also increases the area of the air outlet, thereby improving the air guiding effect.

[0083] It should be noted that each group of second recesses 21 includes a plurality of second recesses 21 arranged at intervals along the length direction of the body, for example, the number of each group of second recesses 21 can be two, three, four or more, and the specific selection depends on the actual application scene and requirements, wherein the plurality of second recesses 21 can increase the air outlet efficiency, further effectively reduce the resistance of the heat insulation plate 1000 when the air flows through, also reduce the impact force of the air flow on the heat insulation plate 1000, thereby prolonging the service life of the heat insulation plate 1000.

[0084] In another embodiment of the present application, as shown in Figure 4 The air outlet includes a second air outlet 210, and the second air outlet 210 is arranged on the top groove wall of the second recess 21.

[0085] In the above scheme, since the exhaust system is located below the heat insulation plate body 1, and the second air outlet 210 is arranged on the top groove wall of the second recess 21, i.e., the opening of the second air outlet 210 is directed away from the heat source, that is, away from the heat source, so that the second air outlet 210 not only plays a role in simply guiding and relieving pressure, but also reduces the transmission path between the heat source, thereby ensuring the heat insulation effect of the heat insulation plate 1000 on the surrounding parts.

[0086] In one embodiment of the present application, as shown in Figure 1 The heat insulation plate body 1 comprises a first mounting surface 102 and a second mounting surface 103 connected together, the air guide surface 10 comprises a first air guide surface 100 and a second air guide surface 101, the first air guide surface 100 is arranged on both sides of the first mounting surface 102 along the length direction, the second air guide surface 101 is connected to the second mounting surface 103, and the extension direction of the first mounting surface 102 and the second air guide surface 101 relative to the second mounting surface 103 is opposite.

[0087] It should be noted that, as shown in Figure 1 The first mounting surface 102 extends downwardly in a direction away from the second mounting surface 103, which facilitates connection with the rear subframe connecting plate 5000, and the second air guide surface 101 extends upwardly in a direction away from the second mounting surface 103, thereby jointly forming a surrounding space with the second mounting surface 103, which effectively completely isolates the gas tank 2000 from the main muffler assembly 4000 below.

[0088] Meanwhile, the second mounting surface 103 can be an arc surface, i.e., an arc region is formed below the second mounting surface 103, and the curvature of the second mounting surface 103 can be adapted to the installation angle and shape of the main muffler assembly 4000, thereby providing sufficient installation space for the main muffler assembly 4000 and greatly enhancing the compactness and adaptability of the heat insulation plate 1000 during installation.

[0089] In addition, the first air guide surface 100 can be inclined from the first mounting surface 102 toward the second mounting surface 103, which can form an avoidance region in front of the first air guide surface 100, thereby greatly facilitating installation of the rear air spring 6000, and the inclined first air guide surface 100 can also effectively change the flow direction of the airflow, reduce air resistance during vehicle driving, reduce the wind resistance coefficient, and improve the fuel economy and driving stability of the vehicle.

[0090] In one embodiment of the present application, as shown in Figure 2 The second mounting surface 103 is provided with a plurality of first reinforcing ribs 3 extending along the length direction of the heat insulation plate body 1 and a plurality of second reinforcing ribs 4 extending along the width direction of the heat insulation plate body 1, the plurality of second reinforcing ribs 4 and the plurality of first reinforcing ribs 3 are arranged in a cross manner to form a grid structure, and the first reinforcing ribs 3 and the second reinforcing ribs 4 can be formed by stamping on the second mounting surface 103.

[0091] In the above scheme, by the cross layout of the first reinforcing rib 3 and the second reinforcing rib 4, a stable grid structure is formed, which can significantly improve the overall strength and rigidity of the heat insulation plate body 1. When the heat insulation plate body 1 is subjected to the impact of external airflow, the grid structure can more effectively disperse and resist stress, prevent the heat insulation plate 1000 from deforming or being damaged, thereby improving the impact resistance of the heat insulation plate 1000. In addition, compared with the prior art scheme of using riveting supports to additionally reinforce the heat insulation plate 1000 to ensure the impact resistance of the heat insulation plate 1000, the grid structure design with built-in reinforcing ribs in the present scheme replaces the riveting supports, not only achieving the reinforcement effect, but also greatly simplifying the construction process and reducing the manufacturing cost.

[0092] Further, as shown in Figure 5 , the grid area in the grid structure is formed by stamping a plurality of third reinforcing ribs 5 in the opposite direction of the first reinforcing rib 3. The third reinforcing rib 5 provides additional support to the first reinforcing rib 3 and the second reinforcing rib 4 in the opposite direction, so that the third reinforcing rib 5 and the first reinforcing rib 3 and the second reinforcing rib 4 form a multi-level reinforcing structure, which significantly improves the overall strength and rigidity of the heat insulation plate 1000. The stamping direction of the third reinforcing rib 5 is opposite to that of the first reinforcing rib 3, which can disperse external load in multiple directions and avoid local stress concentration, further improving the service life of the heat insulation plate 1000.

[0093] The specific structure of the vehicle 10000 will be described below. Figure 6

[0094] Referring to Figure 6 , the utility model provides a vehicle 10000 in the second aspect, including main muffler assembly 4000 and the heat insulation plate 1000 described in the first aspect embodiment.

[0095] Among them, the heat insulation plate 1000 is arranged near the main muffler assembly 4000 and is used to block the heat generated by the main muffler assembly 4000.

[0096] It should be noted that the main muffler assembly 4000 is an important part of the exhaust system, and the main muffler assembly 4000 can include exhaust manifold, exhaust pipe and tail pipe and other components. The exhaust manifold is connected to each cylinder of the engine to collect and guide the exhaust gas into the exhaust system. The exhaust pipe is connected to each component of the exhaust system to guide the exhaust gas from the engine to the tail pipe for discharge. Therefore, the main muffler assembly 4000 will generate heat, and the heat insulation plate 1000 is used to separate the heat generated by the main muffler assembly 4000 from the surrounding parts to block the spread of heat. The surrounding parts can include gas storage tank 2000 and fuel pipe, brake pipe, cable harness, etc. ​

[0097] Further, the vehicle 10000 also comprises a gas storage tank 2000, a gas storage tank connecting plate 3000 and a rear subframe connecting plate 5000, wherein the heat insulation plate 1000 is located between the gas storage tank connecting plate 3000 and the main muffler assembly 4000, and the heat insulation plate 1000 is connected with the gas storage tank connecting plate 3000, and the gas storage tank 2000 is installed on the gas storage tank connecting plate 3000.

[0098] Specifically, the first installation surface 102 is provided with a first through hole, and the first installation surface 102 faces the rear subframe connecting plate 5000, and the heat insulation plate 1000 is fixed by connecting the first through hole with a second through hole at a corresponding position of the rear subframe connecting plate 5000 through a bolt.

[0099] In an embodiment of the utility model, as shown in the figure, Figure 6 The vehicle 10000 also comprises a rear air spring 6000, and the rear air spring 6000 is located on a side of the first air guide surface 100 away from the main muffler assembly 4000, so that the first air guide surface 100 can be inclined from the first installation surface 102 to the second installation surface 103, thereby forming an avoiding area in front of the first air guide surface 100, and great convenience is provided for installation of the rear air spring 6000.

[0100] It should be noted that the first air guide surface 100 extends beyond the boundary of the main muffler assembly 4000 in the length direction of the heat insulation plate body 1, thereby expanding the protection range and enhancing the heat protection effect on the surrounding parts.

[0101] The vehicle provided by the utility model has the heat insulation plate 1000 of the first aspect of the embodiment, and thus has all the beneficial effects of the heat insulation plate 1000. The heat insulation plate 1000 has been described in detail above, and thus will not be described again here.

[0102] It should be noted that in this document, relational terms such as "first" and "second", and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element preceded by "comprises... " does not, without more limitations, foreclose the existence of additional identical elements in the process, method, article, or apparatus that includes the recited element.

[0103] The foregoing merely illustrates the principles of the application and various modifications can be devised by those skilled in the art without departing from the spirit or scope of the application. The embodiments described and pictured herein are presented by way of example only and are not limiting as to the scope of the use of the application, which is set forth in the following claims.

Claims

1. A heat shield characterized by, The heat insulation plate body (1) comprises a wind guide surface (10), the wind guide surface (10) is recessed to form a groove (2) in a direction away from the wind, an opening of the groove (2) forms an air inlet (200), and at least one air outlet is formed on a circumferential groove wall of the groove (2). The wind guide surface (10) is arranged at an edge position of the heat insulation plate body (1).

2. The heat shield of claim 1, wherein The wind guide surface (10) comprises a first wind guide surface (100) arranged at at least one side edge position of the heat insulation plate body (1) in a length direction, and the groove (2) is arranged on the first wind guide surface (100).

3. The heat shield of claim 2, wherein, The wind guide surface (10) comprises a second wind guide surface (101) arranged at a top edge position of the heat insulation plate body (1), and the groove (2) is arranged on the second wind guide surface (101). The groove (2) comprises a group of first grooves (20), each group of the first grooves (20) comprises at least two first grooves (20) arranged at intervals on the first wind guide surface (100), and each first groove (20) extends in a height direction of the heat insulation plate body (1).

4. The heat shield of claim 3, wherein The air outlet comprises a first air outlet (201), the first groove (20) comprises two groove walls arranged at intervals in the height direction of the heat insulation plate body (1), and the first air outlet (201) is arranged on the groove wall away from the center of the heat insulation plate body (1).

5. The heat shield of claim 4, wherein, The groove (2) comprises at least two groups of second grooves (21), and the at least two groups of second grooves (21) are arranged at intervals on the second wind guide surface (101), and the second grooves (21) extend in a length direction of the heat insulation plate body (1).

6. The insulating panel of claim 3, wherein The air outlet comprises a second air outlet (210), and the second air outlet (210) is arranged on a top groove wall of the second groove (21).

7. The heat shield of claim 6, wherein The heat insulation plate body (1) comprises a first mounting surface (102) and a second mounting surface (103) connected to each other, the wind guide surface (10) comprises the first wind guide surface (100) and the second wind guide surface (101), the first wind guide surface (100) is arranged on both sides of the first mounting surface (102) in the length direction, the second wind guide surface (101) is connected to the second mounting surface (103), and the first mounting surface (102) and the second wind guide surface (101) are opposite to each other relative to an extension direction of the second mounting surface (103).

8. The insulating panel of claim 3, wherein The second mounting surface (103) is provided with a plurality of first reinforcing ribs (3) extending in the length direction of the heat insulation plate body (1) and a plurality of second reinforcing ribs (4) extending in a width direction of the heat insulation plate body (1), and the plurality of second reinforcing ribs (4) and the plurality of first reinforcing ribs (3) are arranged in a grid structure.

9. The heat shield of claim 8, wherein, The main muffler assembly (4000) and the heat insulation plate (1000) of any one of claims 1-9 are comprised.

10. A vehicle characterized by comprising: ​ The heat insulation plate (1000) is arranged adjacent to the main muffler assembly (4000) to block heat generated by the main muffler assembly (4000).

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