Heat shield, power system, chassis and vehicle

Abstract

The utility model relates to a heat insulation cover, a power system, a chassis and a vehicle, the heat insulation cover comprises a first cover body, the first cover body at least extends in a first direction and a second direction and is configured to be fixedly connected with a power assembly, and the first cover body is configured to be suitable for being installed among an exhaust system, a suspension support and a transmission shaft; the suspension bracket is arranged between the exhaust system and the transmission shaft so as to limit the heat of the exhaust system from being transferred to the suspension bracket and the transmission shaft; in the embodiment of the invention, the first cover body is assembled on the power assembly, and the first cover body is positioned among the exhaust system, the suspension bracket and the transmission shaft, so that heat of the exhaust system can be prevented from being transferred to the suspension bracket and the transmission shaft, and the heat damage risk of the vehicle is reduced; the power assembly is in non-rigid connection with the auxiliary frame, so that the first cover body connected with the power assembly can move relative to the auxiliary frame, a large space does not need to be reserved on the peripheral side of the suspension support, and the utilization rate of the space in the vehicle is increased.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a heat shield, power system, chassis and vehicle. Background Technology

[0002] To improve vehicle integration, some models integrate the powertrain into the front compartment, meaning the exhaust system is also located in the front compartment. However, due to limited space in the front compartment, the heat generated by the exhaust system during vehicle operation can radiate to other components assembled in the front compartment, posing a risk of heat damage to the vehicle. Utility Model Content

[0003] This application provides a heat shield, a power system, a chassis, and a vehicle to at least partially solve the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a heat shield is provided for use in a vehicle, the heat shield comprising:

[0005] A first cover extends at least along a first direction and a second direction and is configured to be fixedly connected to the powertrain, the first direction and the second direction intersecting;

[0006] The first enclosure is configured to be installed between the exhaust system and the suspension bracket, and is also configured to be installed between the exhaust system and the drive shaft to limit the heat transfer of the exhaust system to the suspension bracket and the drive shaft.

[0007] In some embodiments, the first cover includes a first sub-part and a second sub-part;

[0008] In the third direction, the first sub-part is configured to be opposite to the drive shaft, the second sub-part is configured to be opposite to the suspension bracket, and the third direction intersects with both the first and second directions.

[0009] In some embodiments, in the third direction, the distance between the first sub-unit and the subframe is less than the distance between the second sub-unit and the subframe.

[0010] In some embodiments, the first cover further includes:

[0011] The connecting part connects the first sub-part and the second sub-part;

[0012] The connecting portion is at least partially disposed between the first sub-part and the second sub-part.

[0013] In some embodiments, the first sub-part includes a first side portion, the connecting portion includes a second side portion, and the first side portion is connected to the second side portion;

[0014] Wherein, the dimension of the second side in the first direction is not less than the dimension of the first side in the first direction.

[0015] In some embodiments, the second sub-part includes a third side portion, the connecting portion includes a fourth side portion, and the third side portion is connected to the fourth side portion;

[0016] The dimension of the fourth side in the first direction is not less than the dimension of the third side in the first direction.

[0017] In some embodiments, a clearance space is formed between the second sub-part and the connecting part, and the clearance space is used to avoid the suspension bracket.

[0018] In some embodiments, the connecting portion is inclined relative to the first sub-part and the second sub-part.

[0019] In some embodiments, a clearance portion is provided on the connection portion, which is configured to avoid the connection component between the exhaust system and the turbocharger.

[0020] In some embodiments, the second sub-part is fixed to the powertrain via the first sub-part.

[0021] In some embodiments, the heat shield further includes:

[0022] The mounting bracket is fixedly connected to the first cover.

[0023] The first cover is fixedly connected to the powertrain via a mounting bracket.

[0024] In some embodiments, at least a portion of the mounting bracket is bent to form an interconnected third and fourth sub-parts;

[0025] The third sub-section is fixedly connected to the first cover, and the fourth sub-section is configured to be fixedly connected to the powertrain.

[0026] In some embodiments, the third sub-part is located on the side of the first shroud facing upwards towards the exhaust system; and / or

[0027] The fourth sub-section is located on the side of the first cover that is closer to the powertrain in the first direction.

[0028] In some embodiments, the first cover includes an end portion near the powertrain in a first direction, and the end portion is provided with a first clearance groove;

[0029] At least a portion of the fourth sub-part is located within the first clearance groove.

[0030] In some embodiments, the heat shield further includes:

[0031] Secure the bracket to the first cover body;

[0032] At least a portion of the mounting bracket is located between the fastening bracket and the first cover.

[0033] In some embodiments, the heat shield further includes:

[0034] At least one first connector connects the mounting bracket and the first cover or is configured to connect the mounting bracket and the booster.

[0035] In some embodiments, the first cover includes an end proximate to the powertrain in a first direction;

[0036] The end is provided with a second clearance groove, which is used to avoid the protruding part of the outer contour of the powertrain.

[0037] In some embodiments, the heat shield further includes:

[0038] The second cover is fixedly connected to the first cover, and at least a portion of the second cover is located on one side of the first cover in the second direction;

[0039] At least a portion of the second cover is disposed opposite to the suspension bracket in a second direction, so as to cooperate with the first cover and enclose at least a portion of the suspension bracket.

[0040] In some embodiments, the heat shield further includes:

[0041] At least one second connector connects the first cover and the second cover.

[0042] In some embodiments, the second connector is also configured to connect to an exhaust system.

[0043] In some embodiments, the first cover further includes:

[0044] The support extends in a third direction;

[0045] The support part is connected to the second cover through the second connector.

[0046] In some embodiments, the heat shield further includes:

[0047] At least one third connector is disposed in the second housing and configured to be fixedly connected to the powertrain.

[0048] In some embodiments, the second cover is provided with a mounting portion, which is configured to be fixedly connected to the active end of the suspension bracket.

[0049] In some embodiments, the heat shield further includes:

[0050] At least one reinforcing member is disposed on at least one of the first cover and the second cover.

[0051] According to a second aspect of this application, a power system is provided, the power system comprising:

[0052] Powertrain;

[0053] The exhaust system is connected to the powertrain; and

[0054] Heat shield;

[0055] The heat shield is fixedly connected to the powertrain.

[0056] In some embodiments, the powertrain includes an engine and a transmission connected to each other, and an exhaust system is connected to the engine;

[0057] The heat shield is connected to at least one of the engine and the transmission.

[0058] In some embodiments, the heat shield is also fixedly connected to the exhaust system.

[0059] According to a third aspect of this application, a chassis is provided, comprising:

[0060] Subframe;

[0061] The suspension bracket includes an active end and a passive end. The active end is movable relative to the passive end, and the passive end is connected to the subframe.

[0062] The powertrain system connects to the driving end; and

[0063] The drive shaft is mounted on the subframe and is connected to the powertrain.

[0064] The heat shield is located between the exhaust system and the suspension bracket and drive shaft.

[0065] In some embodiments, the heat shield is also fixedly connected to the active end.

[0066] According to a fourth aspect of this application, a vehicle is provided, including a heat shield, a powertrain, or a chassis.

[0067] The heat shield in this embodiment includes a first shield body, which extends at least along a first direction and a second direction and is configured to be fixedly connected to the powertrain. The first shield body is located between the exhaust system and the suspension bracket and drive shaft to limit the heat transfer of the exhaust system to the suspension bracket and drive shaft. In this embodiment, by mounting the first shield body on the powertrain and positioning it between the exhaust system and the suspension bracket and drive shaft, the heat transfer of the exhaust system to the suspension bracket and drive shaft can be limited, thereby reducing the risk of heat damage to the vehicle. The non-rigid connection between the powertrain and the subframe allows the first shield body connected to the powertrain to move relative to the subframe, thus eliminating the need for a large space around the suspension bracket to improve the utilization of interior space.

[0068] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0069] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0070] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0071] Figure 1 This is a schematic diagram of the overall structure of the chassis provided in an exemplary embodiment of this application;

[0072] Figure 2 This is a schematic diagram of the overall structure of the heat insulation cover provided in an exemplary embodiment of this application;

[0073] Figure 3 This is a schematic diagram of the overall structure of the heat insulation cover provided in an exemplary embodiment of this application;

[0074] Figure 4 This is a schematic diagram of the overall structure of the first cover provided in an exemplary embodiment of this application;

[0075] Figure 5 This is a schematic diagram of the overall structure of the mounting bracket provided in the exemplary embodiment of this application, which has a first connecting part and a first fastener.

[0076] Figure 6 This is a schematic diagram of the overall structure of the mounting bracket provided in an exemplary embodiment of this application;

[0077] Figure 7 This is a schematic diagram of the overall structure of the locking bracket provided in an exemplary embodiment of this application;

[0078] Figure 8 This is a schematic diagram of the overall structure of the heat insulation cover provided in an exemplary embodiment of this application;

[0079] Figure 9 This is a schematic diagram of the overall structure of the second cover with a third connector provided in an exemplary embodiment of this application;

[0080] Figure 10 This is a schematic diagram of the overall structure of the second cover provided in an exemplary embodiment of this application.

[0081] Explanation of reference numerals in the attached figures:

[0082] 100. Heat shield; 200. Exhaust system; 300. Suspension bracket; 400. Drive shaft; 500. Turbocharger;

[0083] 1. First cover; 10. First sub-part; 101. First side part; 102. End part; 11. Second sub-part; 111. Third side part; 12. Connecting part; 121. Second side part; 122. Fourth side part; 13. Support part; 2. Second cover; 3. Clearance part; 4. Mounting bracket; 41. Third sub-part; 42. Fourth sub-part; 5. Fastening bracket; 6. First connecting piece; 7. Second connecting piece; 8. Third connecting piece; 9. 14. Mounting section; 15. Reinforcing member; 16. Engine; 17. Gearbox; 18. Subframe; 19. Suspension bracket; 20. Drive shaft assembly; 21. First mounting hole; 22. First fastener; 23. Second mounting hole; 24. Third mounting hole; 25. Fourth mounting hole; 26. Fifth mounting hole; 27. Sixth mounting hole; 28. Seventh mounting hole; 29. ​​First clearance groove; 30. Second clearance groove. Detailed Implementation

[0084] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0085] This application proposes a heat insulation cover, Figures 1 to 10 These are some embodiments of this application.

[0086] Please see Figures 1 to 3 In some embodiments of this application, the heat shield 100 is used in a vehicle. The heat shield 100 includes a first shield 1 that extends at least along a first direction X and a second direction Y and is configured to be connected to a powertrain. The first shield 1 is configured to be installed between an exhaust system 200 and a suspension bracket 300, and is also configured to be installed between the exhaust system 200 and a drive shaft 400 to limit the transfer of heat from the exhaust system 200 to the suspension bracket 300 and the drive shaft 400.

[0087] In the technical solution of this application, by assembling the first cover 1 on the powertrain, and the first cover 1 being located between the exhaust system 200 and the suspension bracket 300 and drive shaft 400, the heat transfer from the exhaust system 200 to the suspension bracket 300 and drive shaft 400 can be limited, thereby reducing the risk of heat damage to the vehicle; wherein, the powertrain and the subframe 17 are not rigidly connected, so the first cover 1 connected to the powertrain can move relative to the subframe 17, so there is no need to reserve a large space around the suspension bracket 300, thereby improving the utilization rate of the vehicle interior space.

[0088] It should be further explained that the suspension bracket 300 includes an active end and a passive end, which are connected by an elastic component. The active end of the suspension bracket 300 is connected to the powertrain, and the passive end of the suspension bracket 300 is connected to the subframe 17. In related technologies, the heat shield is fixedly connected to the passive end of the suspension bracket or the subframe 17. Since the active end of the suspension bracket 300 can move relative to the passive end, the heat shield needs to have a large clearance between it and the suspension bracket 300 while isolating the heat from the exhaust system 200 from being transferred to the suspension bracket 300, to ensure that the heat shield does not interfere with the deformation of the suspension bracket 300.

[0089] In this embodiment, the heat shield 100 is mounted on the powertrain, so that the heat shield 100 can move relative to the subframe 17. Therefore, there is no need to reserve a large space around the suspension bracket 300 to improve the utilization rate of the vehicle interior space.

[0090] In addition, while ensuring that the first cover 1 does not interfere with the movement of the suspension bracket 300, in some embodiments of this application, the position of the first cover 1 can also be adjusted to improve the space utilization of the vehicle.

[0091] In some embodiments of this application, the heat shield 100 provides heat insulation for the elastic components of the suspension bracket 300 and the drive shaft 400 at the right front of the vehicle, thereby reducing the surrounding heat radiation of the exhaust system 200.

[0092] In this embodiment, the first cover 1 extends at least along the first direction X and the second direction Y. That is, the orthographic projection of the first cover 1 on the plane defined by the first direction X and the second direction Y has a certain size. Thus, the exhaust system 200 is separated from the suspension bracket 300 and the drive shaft 400 by the structural features of the first cover 1, so as to limit the heat transfer of the exhaust system 200 to the suspension bracket 300 and the drive shaft 400.

[0093] Furthermore, although the first cover 1 extends along the first direction X and the second direction Y, the structural shape of the first cover 1 is not limited.

[0094] In some embodiments of this application, the first cover 1 is arranged in a flat plate shape.

[0095] In some other embodiments of this application, a portion of the structure of the first cover 1 may be arranged in an arc shape.

[0096] In some other embodiments of this application, the first cover 1 may be formed by a combination of multiple regular or irregular structures, such as the first cover 1 being formed by a combination of multiple flat structures and multiple arc-shaped structures.

[0097] It should be noted that although the first direction X and the second direction Y intersect, the angle of intersection between the first direction X and the second direction Y is not limited in this embodiment; the angle of intersection between the first direction X and the second direction Y can be 80°, 85°, 90°, 95°, 100°, etc.

[0098] In some embodiments of this application, the first direction X is perpendicular to the second direction Y, that is, the angle between the first direction X and the second direction Y is 90°.

[0099] In some embodiments of this application, the first cover 1 includes a first sub-part 10 and a second sub-part 11. In the third direction Z, the first sub-part 10 is configured to be opposite to the drive shaft 400, and the second sub-part 11 is configured to be opposite to the suspension bracket 300. In this embodiment, the first sub-part 10 is located above the drive shaft 400, and the second sub-part 11 is located above the suspension bracket 300, thereby limiting the heat transfer of the exhaust system 200 from the third direction Z to the drive shaft 400 and the suspension bracket 300, thereby improving the service life of the suspension bracket 300 and the drive shaft 400.

[0100] Wherein, the third direction Z intersects the first direction X and the second direction Y in pairs, and the included angle between each pair of the first direction, the second direction and the third direction is not limited, and can be 80°, 85°, 90°, 95° and 100°.

[0101] In some embodiments of this application, the third direction Z can be perpendicular to the first direction X and the second direction Y.

[0102] In some embodiments of this application, the first direction X, the second direction Y, and the third direction Z are mutually perpendicular, that is, the included angle between each pair of the first direction X, the second direction Y, and the third direction Z is 90°. Therefore, a spatial rectangular coordinate system can be established by the first direction X, the second direction Y, and the third direction Z to explain and illustrate some embodiments of this application. It should be emphasized that the first direction X, the second direction Y, and the third direction Z do not constitute a limitation on the embodiments of this application.

[0103] In some embodiments of this application, the first direction X is the length direction of the heat insulation cover 100, the second direction Y is the width direction of the heat insulation cover 100, and the third direction Z is the height direction of the heat insulation cover 100.

[0104] In some embodiments of this application, when the heat shield 100 is assembled onto a vehicle, the length direction of the heat shield 100 may overlap or intersect with the front-rear direction of the vehicle; the width direction of the heat shield 100 may overlap or intersect with the left-right direction of the vehicle; and the height direction of the heat shield 100 may overlap or intersect with the vertical direction of the vehicle.

[0105] In some embodiments of this application, in the third direction Z, the distance between the first sub-part 10 and the subframe 17 is smaller than the distance between the second sub-part 11 and the subframe 17. This arrangement is because the mounting position of the suspension bracket 300 on the subframe 17 is higher than the mounting position of the drive shaft 400 on the subframe 17. Therefore, the positions of the first sub-part 10 and the second sub-part 11 in the height direction of the vehicle can be designed according to the mounting positions of the suspension bracket 300 and the drive shaft 400 on the subframe 17, thereby reducing the gap between the first cover 1 and the suspension bracket 300 and the drive shaft 400 in the third direction Z, thus improving the heat insulation effect of the heat insulation cover 100, and also improving the utilization rate of the interior space.

[0106] In some embodiments of this application, the minimum distance between the first cover 1 and the suspension bracket 300 in the third direction Z is 15mm, in order to satisfy the lateral, longitudinal, and vertical vibrations of the powertrain as well as the torsion around the lateral, longitudinal, and vertical directions.

[0107] In some embodiments of this application, the minimum distance between the second sub-part 11 and the suspension bracket 300 in the third direction Z is 15mm.

[0108] It should be noted that the first sub-part 10 and the second sub-part 11 can be connected to each other or separated from each other; no restriction is imposed here.

[0109] In some embodiments of this application, the first sub-part 10 and the second sub-part 11 both extend along a plane defined by the first direction X and the second direction Y, so as to space the exhaust system 200 and the suspension bracket 300 and the drive shaft 400 in the third direction Z, thereby achieving a heat insulation function.

[0110] Please see Figures 2 to 4In some embodiments of this application, the first cover 1 further includes a connecting portion 12, which connects the first sub-part 10 and the second sub-part 11. At least a portion of the connecting portion 12 is disposed between the first sub-part 10 and the second sub-part 11. That is, in this embodiment, the first sub-part 10 and the second sub-part 11 are connected by the connecting portion 12, and at least a portion of the connecting portion 12 is disposed between the first sub-part 10 and the second sub-part 11, thereby filling the gap between the first sub-part 10 and the second sub-part 11. This prevents the airflow carrying heat generated by the exhaust system 200 from blowing from the gap between the first sub-part 10 and the second sub-part 11 in a third direction to the suspension bracket 300 and the drive shaft 400. Therefore, the connecting portion 12 also serves to block the heat transfer of the exhaust system 200.

[0111] In some embodiments of this application, the first sub-part 10, the second sub-part 11, and the connecting part 12 are integrally formed.

[0112] In some embodiments of this application, the first sub-part 10 includes a first side part 101, and the connecting part 12 includes a second side part 121, with the first side part 101 and the second side part 121 connected. The dimension of the second side part 121 in the first direction X is not less than the dimension of the first side part 101 in the first direction X. In this embodiment, since the dimension of the second side part 121 in the first direction X is not less than the dimension of the first side part 101 in the first direction X, the heat of the exhaust system 200 will not be transferred from the connection between the first side part 101 and the second side part 121 to the suspension bracket 300 and the drive shaft 400, thereby enhancing the heat insulation effect of the first cover 1.

[0113] In some embodiments of this application, the dimension of the first side portion 101 in the first direction X is smaller than the dimension of the second side portion 121 in the first direction X.

[0114] In some embodiments of this application, the dimension of the connecting portion 12 in the first direction X is larger than the dimension of the first sub-portion 10 in the first direction X.

[0115] In some embodiments of this application, the second sub-part 11 includes a third side part 111, and the connecting part 12 includes a fourth side part 122, with the third side part 111 and the fourth side part 122 connected. The dimension of the fourth side part 122 in the first direction X is not less than the dimension of the third side part 111 in the first direction X. In this embodiment, since the dimension of the fourth side part 122 in the first direction X is not less than the dimension of the third side part 111 in the first direction X, the heat of the exhaust system 200 will not be transferred from the connection between the third side part 111 and the fourth side part 122 to the suspension bracket 300 and the drive shaft 400, thereby enhancing the heat insulation effect of the first cover 1.

[0116] In some embodiments of this application, the dimension of the third side portion 111 in the first direction X is equal to the dimension of the fourth side portion 122 in the first direction X.

[0117] In some embodiments of this application, the dimension of the connecting portion 12 in the first direction X is equal to the dimension of the second sub-portion 11 in the first direction X.

[0118] In some embodiments of this application, the second sub-part 11 and the connecting part 12 enclose a clearance space, which is used to avoid the suspension bracket 300. In this embodiment, by setting the connecting part 12 and the second sub-part 11 to form a clearance space, there is also a certain gap between the connecting part 12 and the suspension bracket 300. In this way, when the powertrain moves relative to the subframe 17, it can be ensured that the structure of the connecting part 12 will not interfere with the suspension bracket 300.

[0119] Meanwhile, the connecting part 12 can also limit the heat of the exhaust system 200 from being transferred to the suspension bracket 300 in the third direction Z, so as to cooperate with the second sub-part 11 to insulate the suspension bracket 300.

[0120] In some embodiments of this application, the connecting portion 12 is inclined relative to the first sub-part 10 and the second sub-part 11. In this embodiment, the inclined connecting portion 12 causes the distance between the first sub-part 10 and the second sub-part 11 and the suspension bracket 300 in the third direction Z to be different, thereby reducing the gap between the heat insulation cover 100 and the suspension bracket 300 and the drive shaft 400, thereby improving the heat insulation effect of the heat insulation cover 100.

[0121] In addition, the inclined connection part 12 can be closer to the suspension bracket 300, which can not only provide heat insulation for the suspension bracket 300, but also effectively improve the utilization of the interior space.

[0122] In some embodiments of this application, a clearance portion 3 is provided on the connecting portion 12, and the clearance portion 3 is configured to avoid the connection components between the exhaust system 200 and the turbocharger 500; that is, in this embodiment, by providing the clearance portion 3, interference between the heat shield 100 and the connection components between the exhaust system 200 and the turbocharger 500 is avoided.

[0123] Understandably, the arrangement of the clearance part 3 causes the first cover 1 to surround the connecting parts between the exhaust system 200 and the turbocharger 500, thereby reducing the heat transfer gap between the suspension bracket 300 and the drive shaft 400 and the exhaust system 200, so as to further improve the heat insulation effect of the heat insulation cover 100.

[0124] In some embodiments of this application, the clearance portion 3 includes a clearance hole formed on the connection portion 12, the clearance hole being used to avoid the connection studs between the flange of the turbocharger 500 and the flange of the exhaust system 200.

[0125] In some embodiments of this application, the connection form between the first sub-part 10 and the second sub-part 11 and the powertrain is not limited; the first sub-part 10 and the second sub-part 11 can be directly connected to the powertrain, or indirectly connected to the powertrain through other components.

[0126] Preferably, in some embodiments of this application, the second sub-part 11 is fixed to the powertrain via the first sub-part 10; in this embodiment, the first sub-part 10 and the second sub-part 11 are interconnected, and the first cover 1 is an integral structure, thereby improving the stability of the first cover 1 when installed in the vehicle.

[0127] Furthermore, the second sub-part 11 is fixed to the powertrain via the first sub-part 10. In other words, by fixing the first sub-part 10 to the powertrain, the operator or operating tool can achieve relative fixation between the second sub-part 11 and the powertrain. There is no need to set a fixed point between the second sub-part 11 and the powertrain, so as to save assembly space inside the vehicle.

[0128] Please see Figure 2 , Figure 3 and Figure 5 In some embodiments of this application, the heat insulation cover 100 further includes a mounting bracket 4, which is fixedly connected to the first cover 1. The first cover 1 is fixedly connected to the powertrain through the mounting bracket 4. That is, in this embodiment, the first cover 1 is not directly connected to the powertrain. Therefore, there is no need to set a fixed point on the first cover 1 for assembly with the powertrain, which facilitates the production design of the first cover 1.

[0129] In some embodiments of this application, the first cover 1 is located on one side of the powertrain in the first direction X. If the first cover 1 is directly connected to the powertrain, an installation plane extending along the third direction Z and the second direction Y needs to be formed on the first cover 1 to assemble with the powertrain. The design of the mounting bracket 4 makes it unnecessary to design this installation plane for the first cover 1, so as to facilitate production design.

[0130] In some embodiments of this application, at least a portion of the mounting bracket 4 is bent to form an interconnected third sub-part 41 and a fourth sub-part 42; the third sub-part 41 is fixedly connected to the first cover 1, and the fourth sub-part 42 is configured to be fixedly connected to the powertrain; in this embodiment, the mounting bracket 4 is configured such that the third sub-part 41 is easily fixedly assembled to the first cover 1, the fourth sub-part 42 is easily fixedly assembled to the powertrain, and the third sub-part 41 and the fourth sub-part 42 have sufficient contact area with the first cover 1 and the powertrain respectively, thereby improving the stability of the fixation between the first cover 1 and the powertrain.

[0131] In some embodiments of this application, the mounting bracket 4 is connected to the engine 15 in the powertrain.

[0132] Please see Figures 5 to 6 In some embodiments of this application, the fourth sub-part 42 is provided with a first mounting hole 20 extending along the first direction X. The mounting bracket 4 is installed on the engine 15 by screwing the first fastener 21 through the first mounting hole 20 into the bolt hole of the engine housing.

[0133] In some embodiments of this application, the first mounting hole 20 is an oblong hole, which allows the relative position of the mounting bracket 4 and the engine 15 to be adjusted in the third direction Z, thereby absorbing the assembly tolerance in the third direction Z of the vehicle.

[0134] In some embodiments of this application, the third sub-part 41 is located on the side of the first cover 1 in the third direction Z, closer to the exhaust system 200; the fourth sub-part 42 is located on the side of the first cover 1 in the first direction X, closer to the powertrain. This arrangement places the third sub-part 41 on the side of the first cover 1 away from the suspension bracket 300, so that the third sub-part 41 will not interfere with the movement of the suspension bracket 300, ensuring that the suspension bracket 300 has sufficient room for movement; while the position of the fourth sub-part 42 is designed not to occupy too much space inside the vehicle.

[0135] In some embodiments of this application, the first cover 1 includes an end 102 near the powertrain in the first direction X, and the end 102 is provided with a first clearance groove 29; at least a portion of the fourth sub-part 42 is located within the first clearance groove 29; in this embodiment, the fourth sub-part 42 is located between the powertrain and the first cover 1, and the design of the first clearance groove 29 ensures that the first cover 1 and the powertrain will not have too large a gap after assembly, so as to reduce the airflow blown by the exhaust system 200 toward the suspension bracket 300 and the drive shaft 400.

[0136] Please see Figure 3 , Figure 4 and Figure 7 In some embodiments of this application, the heat insulation cover 100 further includes a fastening bracket 5, which is fixedly connected to the first cover 1; at least a portion of the mounting bracket 4 is located between the fastening bracket 5 and the first cover 1; by providing the fastening bracket 5, the stability of the connection between the mounting bracket 4 and the first cover 1 is enhanced, and the loosening of the mounting bracket 4 and the first cover 1 is prevented.

[0137] In some embodiments of this application, the first cover 1 is provided with two second mounting holes 22, the fastening bracket 5 is provided with two third mounting holes 24, and the heat insulation cover 100 also includes two second fasteners 23, which pass through the second mounting holes 22 and the third mounting holes 24 respectively to connect the fastening bracket 5 and the first cover 1.

[0138] In some embodiments of this application, one of the two mounting holes is a circular hole and the other is an oblong hole. The fastening bracket 5 and the first cover 1 are assembled by passing the second fastener 23 through the oblong hole, so as to achieve the absorption of the tolerance of the whole vehicle in the first direction X and the second direction Y.

[0139] In some embodiments of this application, the second fastener 23 includes a back-welded bolt.

[0140] The assembly process of the fastening bracket 5 and the first cover 1 is as follows: The middle section of the fastening bracket 5 is pressed tightly against the mounting bracket 4. After being positioned by a tooling fixture, the fastening bracket 5 and the mounting bracket 4 are welded together. Because the outer shape of the middle section of the fastening bracket 5 fits the outer contour of the mounting bracket 4, there is a larger welding area between the fastening bracket 5 and the mounting bracket 4, thereby ensuring good welding strength. This ensures that the heat insulation cover 100 can provide sufficient structural strength under various extreme working conditions of the powertrain. In addition, the back-welding bolts are welded to the fastening bracket 5 after being inserted into the third mounting hole 24. The back-welding bolts on the fastening bracket 5 can also be locked with nuts after passing through the second mounting hole 22, thereby achieving the fixation between the fastening bracket 5, the mounting bracket 4, and the first cover 1.

[0141] Please see Figure 3 and Figure 5 In some embodiments of this application, the heat shield 100 further includes at least one first connector 6, which is configured to connect the mounting bracket 4 and the turbocharger 500. In this embodiment, the heat shield 100 can provide support for the turbocharger 500, thus eliminating the need to set up a separate adapter bracket and open a new mounting point for the turbocharger 500 in the vehicle. This reduces the number of parts in the vehicle, lowers the overall vehicle cost, reduces structural failure problems caused by complex structural design in the vehicle, improves the integration of the vehicle, and increases structural stability and reliability.

[0142] In some embodiments of this application, the mounting bracket 4 is provided with a fourth mounting hole 25, and the first connector 6 passes through the fourth mounting hole 25 and is screwed into the bolt hole of the turbocharger 500 to provide support for the turbocharger 500.

[0143] In some embodiments of this application, the fourth mounting hole 25 is an oblong hole, thereby enabling the assembly of the first connector 6 and the turbocharger 500 to absorb the first direction X tolerance of the vehicle.

[0144] In some embodiments of this application, the first connecting member 6 is a bolt.

[0145] Please see Figure 8In some embodiments of this application, the heat insulation cover 100 further includes at least one first connector 6, which connects the mounting bracket 4 and the first cover 1. In this embodiment, by setting the first connector 6 to connect the mounting bracket 4 and the first cover 1, the stability of the connection between the mounting bracket 4 and the first cover 1 is further enhanced.

[0146] In some embodiments of this application, the mounting bracket 4 is provided with a fourth mounting hole 25, the first cover 1 is provided with a through hole, the first connector 6 passes through the fourth mounting hole 25 and is welded to the mounting bracket 4, the first connector 6 also passes through the through hole on the first cover 1 and is locked by a nut; the assembly form between the mounting bracket 4 and the first cover 1 in this embodiment is suitable for vehicles using natural air intake, with a compact structure and good structural stability and reliability.

[0147] In some embodiments of this application, the first cover 1 includes an end 102 located near the powertrain in the first direction X; wherein, the end 102 is provided with a second clearance groove 30, which is used to avoid the protruding portion of the outer contour of the powertrain; in this embodiment, this arrangement ensures that the assembly gap between the powertrain and the first cover 1 is small when the first cover 1 is assembled on the powertrain, thereby reducing the hot airflow blown by the exhaust system 200 toward the suspension bracket 300 and the drive shaft 400.

[0148] In some embodiments of this application, the end portion 102 is disposed on the first sub-part 10, and the end portion 102 is located on one side of the engine 15 in the first direction X.

[0149] In some embodiments of this application, the end 102 is provided with a second clearance groove 30 to maintain a 3mm static gap with the engine 15, thereby reducing the hot airflow blown by the exhaust system 200 toward the suspension bracket 300 and the drive shaft 400.

[0150] In some embodiments of this application, the first clearance groove 29 is opened from the bottom of the second clearance groove 30, thereby improving the tightness of the assembly between the first cover 1, the mounting bracket 4 and the powertrain.

[0151] Please see Figure 8In some embodiments of this application, the heat insulation cover 100 further includes a second cover 2, which is connected to the first cover 1. At least a portion of the second cover 2 is located on one side of the first cover 1 in the second direction Y. At least a portion of the second cover 2 is disposed opposite to the suspension bracket 300 in the second direction Y, so as to cooperate with the first cover 1 and enclose at least a portion of the suspension bracket 300. In this embodiment, a portion of the second cover 2 is located on one side of the suspension bracket 300 in the second direction Y, and the first cover 1 is located on the side of the suspension bracket 300 in the third direction Z. The first cover 1 and the second cover 2 enclose a semi-enclosed space, and the suspension bracket 300 is located within the semi-enclosed space. The first cover 1 and the second cover 2 can jointly block the heat conducted from the exhaust system 200 to the suspension bracket 300.

[0152] In some embodiments of this application, the first cover 1 and the second cover 2 can jointly block the heat conducted from the exhaust system 200 to the suspension bracket 300 and the drive shaft 400.

[0153] It is understandable that the heat shield 100 is divided into a first shield 1 and a second shield 2, and the first shield 1 and the second shield 2 are assembled together to facilitate the assembly of internal vehicle components.

[0154] In some embodiments of this application, the heat shield 100 further includes at least one second connector 7, which connects the first shield 1 and the second shield 2; in this embodiment, the first shield 1 and the second shield 2 are connected by the second connector 7 to ensure that the heat shield 100 is securely installed inside the vehicle.

[0155] In some embodiments of this application, the second connector 7 includes a bolt.

[0156] In some embodiments of this application, the second connector 7 is also configured to connect to the exhaust system 200; that is, the heat shield 100 can also provide support for the exhaust system 200, so there is no need to set up a separate adapter bracket and open a new installation point for the exhaust system 200 in the vehicle, thereby reducing the number of parts in the vehicle, reducing the overall vehicle cost, reducing the structural failure problem caused by the complex structural design in the vehicle, improving the integration of the vehicle, and increasing the structural stability and reliability.

[0157] Please see Figures 9 to 10 In some embodiments of this application, the first cover 1 is provided with a fifth mounting hole 26, and the second cover 2 is provided with a sixth mounting hole 27. The second connector 7 is fixed to the exhaust system 200 and passes through the sixth mounting hole 27 and the fifth mounting hole 26 in sequence, and is locked with a nut to provide support for the exhaust system 200.

[0158] In some embodiments of this application, two fifth mounting holes 26 are provided, one of which is a circular hole and the other is an oblong hole. By setting the fifth mounting hole 26 to be an oblong hole, the tolerance of the whole vehicle in the third direction Z is absorbed.

[0159] In some embodiments of this application, there are two sixth mounting holes 27, both of which are circular holes.

[0160] In some embodiments of this application, the first cover 1 further includes a support portion 13, which extends along a third direction Z and is connected to the second cover 2 via a second connector 7. In this embodiment, by providing a support portion 13 extending along a third direction Z, the distance between the heat insulation cover 100 and the exhaust system 200 is shortened, thereby enabling the heat insulation cover 100 to support the exhaust system 200.

[0161] In some embodiments of this application, at least a portion of the shape of the support portion 13 matches the shape of the exhaust system 200 in contact with it, thereby increasing the contact area with the exhaust system 200 and thus providing good support for the exhaust system 200.

[0162] In some embodiments of this application, the support portion 13 is connected to the second sub-portion 11.

[0163] In some embodiments of this application, the heat shield 100 further includes at least one third connector 8, which is disposed on the second shield 2 and configured to be fixedly connected to the powertrain; that is, in this embodiment, the second shield 2 and the powertrain are fixed by the third connector 8, that is, there are two fixed points between the heat shield 100 and the powertrain, thereby improving the reliability of the heat shield 100 being fixed on the powertrain.

[0164] In some embodiments of this application, the second cover 2 is fixed to the gearbox 16 in the powertrain.

[0165] In some embodiments of this application, a seventh mounting hole 28 is provided on the second cover 2, and the third connector 8 passes through the seventh mounting hole 28 and is installed on the outer housing of the gearbox 16, thereby achieving the fixation between the second cover 2 and the gearbox 16.

[0166] In some embodiments of this application, the third connector 8 includes a flat-head bolt.

[0167] In some embodiments of this application, the second cover 2 is provided with a mounting part 9, which is configured to be fixedly connected to the active end of the suspension bracket 300. In this embodiment, by providing the mounting part 9, the second cover 2 can be connected to the active end of the suspension bracket 300 through the mounting part 9, thereby improving the reliability of the second cover 2 in the vehicle.

[0168] In some embodiments of this application, the mounting part 9 is connected to the mounting boss at the active end of the suspension bracket 300.

[0169] In some embodiments of this application, the mounting part 9 includes an eighth mounting hole provided on the second cover 2, the eighth mounting hole being used for the mounting boss of the active end of the suspension bracket 300 to pass through.

[0170] In some embodiments of this application, the heat shield 100 includes at least one reinforcing member 14, which is disposed on at least one of the first shield 1 and the second shield 2. In this embodiment, the reinforcing member 14 increases the reinforcement range of the first shield 1 and the second shield 2, improves the robustness and durability of the first shield 1 and the second shield 2, and is also beneficial to improving the modal frequency of the heat shield 100, which is beneficial to the NVH performance of the chassis.

[0171] The shape and location of the reinforcing member 14 are not restricted.

[0172] In some embodiments of this application, the first cover 1, the second cover 2, the mounting bracket 4, and the fastening bracket 5 are plastic or metal structures, formed by injection molding or stamping, which facilitates mass production and cost control.

[0173] In some embodiments of this application, the suspension bracket 300 is used to connect the gearbox 16 and the subframe 17.

[0174] The heat shield 100 in this embodiment, with its main structure consisting of a first shield 1 and a second shield 2, forms an effective heat insulation area, greatly blocking the heat radiation generated by the exhaust system 200, reducing the airflow blowing towards the suspension bracket 300 and drive shaft 400, and preventing the elastic components of the suspension bracket 300 and the surface of the drive shaft 400 from overheating and causing thermal failure. This effectively prevents power system failure caused by the failure of the suspension bracket 300 or the drive shaft 400. Furthermore, by effectively controlling the surface temperature of the elastic components of the suspension bracket 300 and the drive shaft 400 during driving, the service life of the suspension bracket 300 and the drive shaft 400 can be increased.

[0175] In addition, the heat shield 100 is connected by a first shield 1, a second shield 2, a fastening bracket 5, and a mounting bracket 4; the first shield 1 and the second shield 2 are interconnected and support the exhaust system 200, and the mounting bracket 4 supports the turbocharger 500. This avoids the need for separate adapter brackets and new mounting points for the exhaust system 200 and the turbocharger 500, reduces the number of parts, lowers the overall vehicle cost, reduces structural failure problems caused by complex structural design, improves system integration, and increases structural stability and assembly reliability.

[0176] In some embodiments of this application, since the first cover 1 and the second cover 2 of the heat shield 100 are fixed on the engine 15 and the gearbox 16 respectively, the phenomenon of one end of the first cover 1 jumping and interfering with other components when the powertrain vibrates laterally, longitudinally, and vertically, and when it twists about laterally, longitudinally, and vertically, can be avoided. At the same time, the modal frequency, NVH (Noise, Vibration, Harshness) performance and durability of the heat shield 100 are also improved.

[0177] This application also provides a power system, which includes a powertrain, an exhaust system 200, and a heat shield 100. The exhaust system 200 is connected to the powertrain, and the heat shield is fixedly connected to the powertrain. The heat shield 100 is as described above. Since the powertrain adopts all the technical solutions of the above embodiments, it at least has the beneficial effects brought about by the technical solutions of the above embodiments.

[0178] In some embodiments of this application, the powertrain includes an engine 15 and a transmission 16 connected to each other, and an exhaust system 200 connected to the engine 15 for discharging exhaust gases from the engine 15; wherein, a heat shield 100 is connected to at least one of the engine 15 and the transmission 16; in this embodiment, by mounting the heat shield 100 on the powertrain, that is, the heat shield 100 moves with the powertrain, and the powertrain is connected to the subframe 17 via a suspension bracket 300, the powertrain and the subframe 17 are non-rigidly connected, so that the heat shield 100 connected to the powertrain can move relative to the subframe 17, so there is no need to reserve a large space around the suspension bracket 300 to improve the utilization rate of the vehicle interior space.

[0179] In some embodiments of this application, the first cover 1 of the heat shield 100 is connected to the engine 15, and the second cover 2 of the heat shield 100 is connected to the gearbox 16, so as to improve the stability of the heat shield 100 in the powertrain assembly.

[0180] In some embodiments of this application, the heat shield 100 is also fixedly connected to the exhaust system 200 and supports the exhaust system 200, which can avoid the exhaust system 200 from having a single adapter bracket and a new installation point, reduce the number of parts, reduce the overall vehicle cost, reduce structural failure problems caused by complex structural design, improve system integration, and increase structural stability and assembly reliability.

[0181] This application also provides a chassis, which includes a subframe 17, a suspension bracket 300, a power system, and a drive shaft 400. The suspension bracket 300 includes an active end and a passive end, the active end being movable relative to the passive end. The passive end is connected to the subframe 17, and the active end is connected to the powertrain. The drive shaft 400 is disposed on the subframe 17 and is connected to the transmission system. A heat shield 100 is disposed between the exhaust system 200, the suspension bracket 300, and the drive shaft 400. The power system is as described above. Since the chassis adopts all the technical solutions of the above embodiments, it at least has the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here.

[0182] In this embodiment, the heat shield 100 is disposed between the exhaust system, the suspension bracket 300, and the drive shaft 400. The heat shield 100 is mounted on the powertrain, so that the heat shield 100 can move relative to the subframe 17. Therefore, there is no need to reserve a large space around the suspension bracket 300 to improve the utilization rate of the vehicle interior space.

[0183] In some embodiments of this application, the heat shield 100 is also connected to the active end of the suspension bracket 300, wherein the active end of the suspension bracket 300 can move together with the powertrain. Fixing the heat shield 100 to the active end of the suspension bracket 300 can improve the reliability of the second shield 2 in the vehicle and also prevent the heat shield 100 from interfering with the deformation of the suspension bracket 300 itself.

[0184] This application also provides a vehicle, which includes a heat shield 100 or a power system or a chassis, the chassis of which is as described above. Since the vehicle adopts all the technical solutions of all the above embodiments, it has at least the beneficial effects brought about by the technical solutions of the above embodiments.

[0185] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions.

[0186] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as...

[0187] The designation indicates or implies relative importance or implicitly specifies the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0188] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0189] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0190] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A heat shield for a vehicle, characterized in that, include: A first cover extends at least along a first direction and a second direction and is configured to be fixedly connected to the powertrain, the first direction intersecting the second direction; The first cover is configured to be installed between the exhaust system and the suspension bracket, and is also configured to be installed between the exhaust system and the drive shaft to limit the heat transfer of the exhaust system to the suspension bracket and the drive shaft.

2. The heat insulation cover according to claim 1, characterized in that, The first cover includes a first sub-part and a second sub-part; In the third direction, the first sub-part is configured to be opposite to the drive shaft, and the second sub-part is configured to be opposite to the suspension bracket. The third direction intersects the first direction and the second direction in pairs.

3. The heat insulation cover according to claim 2, characterized in that, In the third direction, the distance between the first sub-part and the subframe is less than the distance between the second sub-part and the subframe.

4. The heat insulation cover according to claim 3, characterized in that, The first cover also includes: A connecting part connects the first sub-part and the second sub-part; The connecting portion is at least partially disposed between the first sub-part and the second sub-part.

5. The heat insulation cover according to claim 4, characterized in that, The first sub-part includes a first side portion, and the connecting portion includes a second side portion, wherein the first side portion is connected to the second side portion; Wherein, the dimension of the second side portion in the first direction is not less than the dimension of the first side portion in the first direction.

6. The heat insulation cover according to claim 4, characterized in that, The second sub-part includes a third side portion, and the connecting portion includes a fourth side portion, wherein the third side portion is connected to the fourth side portion; Wherein, the dimension of the fourth side portion in the first direction is not less than the dimension of the third side portion in the first direction.

7. The heat insulation cover according to claim 4, characterized in that, The second sub-part and the connecting part form a clearance space, which is used to avoid the suspension bracket.

8. The heat insulation cover according to claim 4, characterized in that, The connecting portion is inclined relative to the first sub-part and the second sub-part.

9. The heat insulation cover according to claim 4, characterized in that, The connecting part is provided with a clearance part, which is configured to avoid the connecting parts between the exhaust system and the turbocharger.

10. The heat insulation cover according to claim 2, characterized in that, The second sub-part is fixed to the powertrain via the first sub-part.

11. The heat insulation cover according to any one of claims 1 to 10, characterized in that, The heat insulation cover also includes: The mounting bracket is fixedly connected to the first cover. The first cover is fixedly connected to the powertrain via the mounting bracket.

12. The heat insulation cover according to claim 11, characterized in that, At least a portion of the mounting bracket is bent to form an interconnected third and fourth sub-section; The third sub-part is fixedly connected to the first cover, and the fourth sub-part is configured to be fixedly connected to the powertrain.

13. The heat insulation cover according to claim 12, characterized in that, The third sub-section is located on the side of the first shroud facing upwards towards the exhaust system; and / or The fourth sub-section is located on the side of the first cover that is closer to the powertrain in the first direction.

14. The heat insulation cover according to claim 12, characterized in that, The first cover includes an end near the powertrain in the first direction, and the end is provided with a first clearance groove; At least a portion of the fourth sub-part is located within the first clearance groove.

15. The heat insulation cover according to claim 11, characterized in that, The heat insulation cover also includes: The fastening bracket is fixedly connected to the first cover. At least a portion of the mounting bracket is located between the fastening bracket and the first cover.

16. The heat insulation cover according to claim 11, characterized in that, The heat insulation cover also includes: At least one first connector connects the mounting bracket and the first cover or is configured to connect the mounting bracket and the booster.

17. The heat insulation cover according to any one of claims 1 to 10, characterized in that, The first cover includes an end near the powertrain in the first direction; The end portion is provided with a second clearance groove, which is used to avoid the protruding part of the outer contour of the powertrain.

18. The heat insulation cover according to any one of claims 1 to 10, characterized in that, The heat insulation cover also includes: The second cover is fixedly connected to the first cover, and at least a portion of the second cover is located on one side of the first cover in the second direction; Wherein, at least a portion of the second cover is disposed opposite to the suspension bracket in the second direction, so as to cooperate with the first cover and enclose at least a portion of the suspension bracket.

19. The heat insulation cover according to claim 18, characterized in that, The heat insulation cover also includes: At least one second connector connects the first cover and the second cover.

20. The heat insulation cover according to claim 19, characterized in that, The second connector is also configured to connect to the exhaust system.

21. The heat insulation cover according to claim 20, characterized in that, The first cover also includes: The support extends in a third direction; The support portion is connected to the second cover via the second connector.

22. The heat insulation cover according to claim 18, characterized in that, The heat insulation cover also includes: At least one third connector is disposed on the second housing and configured to be fixedly connected to the powertrain.

23. The heat insulation cover according to claim 18, characterized in that, The second cover is provided with a mounting part, which is configured to be fixedly connected to the active end of the suspension bracket.

24. The heat insulation cover according to claim 18, further comprising: At least one reinforcing member is disposed on at least one of the first cover and the second cover.

25. A power system, characterized in that, include: Powertrain; The exhaust system is connected to the powertrain; and The heat shield as described in any one of claims 1 to 24; The heat insulation cover is fixedly connected to the powertrain.

26. The power system according to claim 25, characterized in that, The powertrain includes an engine and a transmission connected to each other, and the exhaust system is connected to the engine; The heat shield is connected to at least one of the engine and the gearbox.

27. The power system according to claim 25, characterized in that, The heat insulation cover is also fixedly connected to the exhaust system.

28. A chassis, characterized in that, include: Subframe; A suspension bracket includes an active end and a passive end, wherein the active end is movable relative to the passive end, and the passive end is connected to the subframe. The powertrain of any one of claims 25 to 27 is connected to the driving end; and A drive shaft is mounted on the subframe and is connected to the power system via a transmission. The heat insulation cover is disposed between the exhaust system, the suspension bracket, and the drive shaft.

29. The chassis according to claim 28, characterized in that, The heat insulation cover is also fixedly connected to the active end.

30. A vehicle, characterized in that, Includes the heat shield as described in any one of claims 1 to 24, the power system as described in any one of claims 25 to 27, or the chassis as described in any one of claims 28 to 29.

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