Multifunctional heat shield for exhaust pipe of exhaust system

Abstract

The invention discloses a multifunctional heat shield for an exhaust pipe of an exhaust system. The multifunctional heat shield comprises an upper exhaust hanger, a heat shield body and the exhaust pipe. The exhaust pipe is bent twice to form a first exhaust pipe section, a second exhaust pipe section and a third exhaust pipe section; the heat shield body is arranged on the exhaust pipe and is bent twice along the direction of the exhaust pipe to form a first heat shield section, a second heat shield section and a third heat shield section; a groove is formed in the side, away from the exhaust pipe, of the heat insulation cover body, and the hanging straight line section of the exhaust upper hanger is embedded in the groove and fixed to the heat insulation cover body in a welded mode. The exhaust upper hanger is perfectly attached to the heat shield body and then is welded and fixed to the exhaust pipe, so that the heat shield body can isolate part of exhaust pipe heat damage and protect important parts of an automobile chassis from being affected by high temperature, and meanwhile, the heat shield body serves as a hanger supporting support, the hanger rigidity is improved, and the stress of the exhaust upper hanger is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile exhaust system accessories, in particular to a multifunctional heat insulation cover for an exhaust pipe of an exhaust system. Background Art

[0002] In the National VI stage, the exhaust temperature of automobiles is generally high, and some even reach over 900℃. The high exhaust temperature increases the temperature of automobile chassis parts through heat conduction, convection, radiation, etc., causing parts failure and even the risk of spontaneous combustion. In view of this, heat shields need to be arranged on the exhaust pipes corresponding to important chassis parts to reduce heat damage to the exhaust pipes.

[0003] When the exhaust system suspension layout overlaps with the heat shield, the suspension is usually welded to the exhaust pipe. At this time, the heat shield needs to be drilled to reserve the hook position, which will affect the heat insulation effect of the heat shield. Moreover, when the suspension is far away from the exhaust pipe, the slender suspension will lead to low suspension stiffness, which will affect the NVH performance of the exhaust system.

[0004] In view of the above situation, there is an urgent need for a dual-function heat shield to meet the requirements of current automobile exhaust systems. Summary of the invention

[0005] The purpose of the present invention is to provide a multifunctional heat insulation cover for an exhaust pipe of an exhaust system, which can isolate part of the exhaust pipe from heat damage and protect important parts of the automobile chassis from high temperature. At the same time, it can serve as a hanging support bracket to increase the hanging stiffness and improve the force of the hook.

[0006] In order to solve the above technical problems, the present invention provides a multifunctional heat shield for an exhaust pipe of an exhaust system, comprising an exhaust upper hanger, a heat shield body and an exhaust pipe; The exhaust pipe is bent twice to form exhaust pipe section one, exhaust pipe section two and exhaust pipe section three; The heat shield body is arranged on the exhaust pipe and is bent twice along the direction of the exhaust pipe to form a heat shield section 1, a heat shield section 2, and a heat shield section 3; A groove is formed on one side of the heat shield body away from the exhaust pipe, and a hanging straight line section of the exhaust upper hanging is embedded in the groove and fixed to the heat shield body by welding.

[0007] Preferably, the exhaust pipe section 1 and the exhaust pipe section 2 are transitioned through the exhaust pipe section 1 fillet; the exhaust pipe section 2 and the exhaust pipe section 3 are transitioned through the exhaust pipe section 2 fillet.

[0008] Preferably, the first section of the heat insulation cover and the second section of the heat insulation cover are transitioned through the first section of the heat insulation cover rounded corner; the second section of the heat insulation cover and the third section of the heat insulation cover are transitioned through the second section of the heat insulation cover rounded corner.

[0009] Preferably, a first flange is provided on one side of the third section of the heat insulation cover, which fits with the first section of the exhaust pipe of the exhaust pipe and is fixed to the first section of the exhaust pipe by welding.

[0010] Preferably, a first platform is punched inwardly on the other side of the third section of the heat shield, which fits the first section of the exhaust pipe of the exhaust pipe and is fixed to the first section of the exhaust pipe by welding.

[0011] Preferably, a second flange is provided on one side of the second section of the heat insulation cover, which fits with the second section of the exhaust pipe of the exhaust pipe and is fixed to the second section of the exhaust pipe by welding.

[0012] Preferably, a second platform is provided on the other side of the second section of the heat shield, which fits with the second section of the exhaust pipe of the exhaust pipe and is fixed to the second section of the exhaust pipe by welding.

[0013] Preferably, a third platform is stamped on the tail end of one section of the heat insulation cover, which fits with the third section of the exhaust pipe of the exhaust pipe and is fixed to the third section of the exhaust pipe by welding.

[0014] Preferably, the second section of the heat shield, the second section of the heat shield with rounded corners, and the third section of the heat shield are designed with reinforcing ribs toward the outside, so as to enhance the rigidity of the heat shield body.

[0015] Preferably, the thickness of the heat shield body is 1.2-1.5 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the exhaust upper hanger is perfectly fitted with the heat shield body and then welded and fixed on the exhaust pipe, so that the heat shield body can not only isolate part of the exhaust pipe from heat damage and protect important parts of the automobile chassis from high temperature, but also serve as a hanger support bracket to increase the hanger stiffness and improve the stress of the exhaust upper hanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the exhaust system provided by the present invention; Figure 2 It is a schematic structural diagram of the connection between the heat shield body and the exhaust pipe provided by the present invention from a first perspective; Figure 3 is a second perspective structural schematic diagram of the connection between the heat shield body and the exhaust pipe provided by the present invention; Figure 4 is a schematic structural diagram of the heat shield body provided by the present invention from a first viewing angle; Figure 5 It is a structural schematic diagram of the heat shield body provided by the present invention from a second viewing angle.

[0018] In the figure: 1. exhaust upper suspension; 2. heat shield body; 3. exhaust pipe; 11. suspension straight section; 21. heat shield section; 22. heat shield rounded section; 23. heat shield section 2; 24. heat shield rounded section 2; 25. heat shield section 3; 27. second platform; 28. first platform; 29. ​​first flange; 210. groove; 211. second flange; 212. third platform; 31. exhaust pipe section 1; 32. exhaust pipe rounded section 1; 33. exhaust pipe section 2; 34. exhaust pipe rounded section 2; 35. exhaust pipe section 3. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example

[0022] The present invention provides a multifunctional heat shield for an exhaust pipe of an exhaust system, see Figure 1-3, including an exhaust upper hanger 1, a heat shield body 2 and an exhaust pipe 3; the exhaust pipe 3 is bent twice to form an exhaust pipe section 1 31, an exhaust pipe section 2 33 and an exhaust pipe section 35; the heat shield body 2 is arranged on the exhaust pipe 3 and is bent twice along the direction of the exhaust pipe 3 to form a heat shield section 1 21, a heat shield section 23 and a heat shield section 3 25; a groove 210 is provided on the side of the heat shield body 2 away from the exhaust pipe 3, and the hanging straight line section 11 of the exhaust upper hanger 1 is embedded in the groove 210 and is welded and fixed to the heat shield body 2. The thickness of the heat shield body 2 is 1.2-1.5 mm.

[0023] The exhaust upper hanger 1 is perfectly fitted with the heat shield body 2 and then welded and fixed on the exhaust pipe 3, so that the heat shield body 2 can not only isolate part of the exhaust pipe 3 from heat damage and protect important parts of the automobile chassis from high temperature, but also serve as a hanging support bracket to increase the hanging stiffness and improve the stress of the exhaust upper hanger 1.

[0024] For details, please continue to refer to Figure 1 The exhaust pipe section 1 31 and the exhaust pipe section 2 33 are transitioned through the exhaust pipe section 1 32 with rounded corners; the exhaust pipe section 2 33 and the exhaust pipe section 35 are transitioned through the exhaust pipe section 2 34 with rounded corners.

[0025] Furthermore, the heat shield first section 21 and the heat shield second section 23 are transitioned through the heat shield rounded corner first section 22 ; the heat shield second section 23 and the heat shield third section 25 are transitioned through the heat shield rounded corner second section 24 .

[0026] In one embodiment, see Figure 4 and Figure 5 A first flange 29 is provided on one side of the third section 25 of the heat insulation cover, which is fitted with the first section 31 of the exhaust pipe 3 and fixed to the first section 31 of the exhaust pipe 3 by welding; a first platform 28 is punched inwardly on the other side of the third section 25 of the heat insulation cover, which is fitted with the first section 31 of the exhaust pipe 3 and fixed to the first section 31 of the exhaust pipe 3 by welding.

[0027] In one embodiment, a second flange 211 is provided on one side of the second section 23 of the heat shield, which is fitted with the second section 33 of the exhaust pipe 3 and fixed to the second section 33 of the exhaust pipe 3 by welding; a second platform 27 is provided on the other side of the second section 23 of the heat shield, which is fitted with the second section 33 of the exhaust pipe 3 and fixed to the second section 33 of the exhaust pipe 3 by welding.

[0028] Furthermore, a third platform 212 is stamped on the rear end of the first section 21 of the heat shield, which fits with the third section 35 of the exhaust pipe 3 and is fixed to the third section 35 of the exhaust pipe 3 by welding.

[0029] In one embodiment, the second heat shield section 23 , the second heat shield section 24 with rounded corners, and the third heat shield section 25 are designed with reinforcing ribs outwardly, so as to enhance the rigidity of the heat shield body 2 .

[0030] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A multifunctional heat shield for an exhaust pipe of an exhaust system, characterized in that: It comprises an exhaust upper suspension (1), a heat shield body (2) and an exhaust pipe (3); The exhaust pipe (3) is bent twice to form an exhaust pipe section (31), an exhaust pipe section (33) and an exhaust pipe section (35); The heat shield body (2) is arranged on the exhaust pipe (3) and is bent twice along the direction of the exhaust pipe (3) to form a heat shield section (21), a heat shield section (23), and a heat shield section (25); A groove (210) is provided on a side of the heat shield body (2) away from the exhaust pipe (3), and a hanging straight line section (11) of the exhaust upper hanging (1) is embedded in the groove (210) and fixed to the heat shield body (2) by welding.

2. A multifunctional heat shield for an exhaust pipe of an exhaust system as claimed in claim 1, characterized in that: The exhaust pipe section 1 (31) and the exhaust pipe section 2 (33) are transitioned via the exhaust pipe section 1 (32); and the exhaust pipe section 2 (33) and the exhaust pipe section 3 (35) are transitioned via the exhaust pipe section 2 (34).

3. A multifunctional heat shield for an exhaust pipe of an exhaust system as claimed in claim 2, characterized in that: The first heat shield section (21) and the second heat shield section (23) are transitioned via the first heat shield section (22); and the second heat shield section (23) and the third heat shield section (25) are transitioned via the second heat shield section (24).

4. A multifunctional heat shield for an exhaust pipe of an exhaust system as claimed in claim 3, characterized in that: A first flange (29) is provided on one side of the third section (25) of the heat shield, which fits the first section (31) of the exhaust pipe (3) and is fixed to the first section (31) of the exhaust pipe (3) by welding.

5. A multifunctional heat shield for an exhaust pipe of an exhaust system as claimed in claim 4, characterized in that: A first platform (28) is punched inwardly on the other side of the third section (25) of the heat shield, which fits the first section (31) of the exhaust pipe (3) and is fixed to the first section (31) of the exhaust pipe (3) by welding.

6. A multifunctional heat shield for an exhaust pipe of an exhaust system as claimed in claim 3, characterized in that: A second flange (211) is provided on one side of the second section (23) of the heat shield, which fits the second section (33) of the exhaust pipe (3) and is fixed to the second section (33) of the exhaust pipe (3) by welding.

7. A multifunctional heat shield for an exhaust pipe of an exhaust system as claimed in claim 6, characterized in that: A second platform (27) is provided on the other side of the second section (23) of the heat shield, which fits the second section (33) of the exhaust pipe (3) and is fixed to the second section (33) of the exhaust pipe (3) by welding.

8. The multifunctional heat shield for an exhaust pipe of an exhaust system as claimed in claim 3, characterized in that: A third platform (212) is stamped on the rear end of the first section (21) of the heat shield, which fits the third section (35) of the exhaust pipe (3) and is fixed to the third section (35) of the exhaust pipe (3) by welding.

9. A multifunctional heat shield for an exhaust pipe of an exhaust system as claimed in claim 3, characterized in that: The second heat shield section (23), the second heat shield section (24) with rounded corners, and the third heat shield section (25) are designed with reinforcing ribs facing outwards, thereby enhancing the rigidity of the heat shield body (2).

10. The multifunctional heat shield for an exhaust pipe of an exhaust system as claimed in claim 1, characterized in that: The thickness of the heat insulation cover body (2) is 1.2-1.5 mm.

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