Novel heat insulation and heat preservation automobile exhaust pipe and automobile
By installing an aluminum foil insulation layer and a flexible insulation sleeve on the exhaust pipe body, the problem of the inability to insulate exhaust pipes with different structures in the existing technology is solved, achieving efficient heat insulation effect and simple installation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-03
AI Technical Summary
The existing insulation structure of automotive exhaust pipes is too simple to provide targeted insulation measures for exhaust pipes with different structures, resulting in poor overall insulation performance.
An aluminum foil heat insulation layer is installed on the exhaust pipe body, and a flexible heat insulation sleeve is provided on the surface of the telescopic pipe section. The heat insulation sleeve is composed of a glass fiber layer, a high-temperature cotton layer and a silicone cloth layer, and is equipped with diamond-shaped through holes and a snap fastener structure to adapt to the deformation requirements of different structures.
It achieves efficient heat insulation for exhaust pipes with different structures, improves the overall insulation effect, reduces production costs and simplifies the installation process.
Smart Images

Figure CN224079210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle exhaust pipe heat insulation technology, and in particular to a new type of heat-insulating automotive exhaust pipe and vehicle. Background Technology
[0002] In the field of automotive exhaust pipes, to ensure that the heat from the gas supplied to the processor remains at a certain temperature, a thermal insulation structure is usually installed on the surface of the exhaust pipe at the processor's input end. Most existing exhaust pipe insulation methods employ a single insulation structure, such as simply installing a single insulating cotton or shell on the exhaust pipe. This fails to provide targeted insulation measures for exhaust pipes with different structures, thus reducing the overall insulation effect. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a novel heat-insulating automotive exhaust pipe and vehicle, wherein the novel heat-insulating automotive exhaust pipe includes an exhaust pipe body, and the exhaust pipe body includes at least a straight pipe section and a telescopic pipe section;
[0004] The surface of the straight pipe section is provided with an aluminum foil heat insulation layer;
[0005] The surface of the expandable tube is provided with a heat insulation sleeve, which is flexible.
[0006] Preferably, the exhaust pipe body further includes a bend, the surface of which is provided with an aluminum foil heat insulation layer and / or a heat insulation sleeve.
[0007] Preferably, the heat insulation sleeve includes a glass fiber layer, a high-temperature cotton layer, and a silicone cloth layer arranged sequentially from the inside to the outside.
[0008] Preferably, at least one or more diamond-shaped through holes are provided in the high-temperature cotton layer.
[0009] Preferably, the edge of the heat insulation sleeve is provided with a snap fastener structure and / or a fixing strap.
[0010] Preferably, the heat insulation sleeve has one or more clearance through holes.
[0011] Preferably, the surface of the telescopic tube is covered by two or more heat insulation sleeves.
[0012] This utility model also provides a new type of vehicle that uses the novel heat-insulating and heat-preserving automotive exhaust pipe described above.
[0013] The novel heat-insulating automotive exhaust pipe provided in this embodiment of the utility model, by setting an aluminum foil heat insulation layer in the straight pipe section and a flexible heat insulation sleeve in the telescopic pipe section, can make targeted heat insulation measures for exhaust pipes with different structures, thus ensuring the overall heat insulation effect. Attached Figure Description
[0014] Figure 1 A schematic diagram of a novel heat-insulating automotive exhaust pipe provided for an embodiment of this utility model;
[0015] Figure 2 This is a schematic diagram of a heat insulation sleeve;
[0016] Figure 3 A schematic diagram of a heat insulation sleeve with diamond-shaped through holes;
[0017] Figure 4 A schematic diagram of a heat insulation sleeve with clearance through holes;
[0018] Figure 5 This is a schematic diagram of the cross-section of the heat insulation jacket;
[0019] Among them: 10. Exhaust pipe body; 11. Straight pipe section; 12. Telescopic pipe section; 21. Aluminum foil heat insulation layer; 22. Heat insulation sleeve; 221. Fiberglass layer; 222. High temperature cotton layer; 223. Silicone cloth layer; 224. Diamond-shaped through hole; 225. Snap fastener structure; 226. Fixing strap; 227. Avoidance through hole. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods. Unless otherwise specified, the materials and reagents used in the following embodiments can be obtained commercially.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] This utility model provides a novel heat-insulating and thermally insulating automotive exhaust pipe and vehicle. The novel heat-insulating and thermally insulating automotive exhaust pipe includes an exhaust pipe body 10, wherein the exhaust pipe body 10 includes at least a straight pipe section 11 and a telescopic pipe section 12.
[0024] The surface of the straight pipe section 11 is provided with an aluminum foil heat insulation layer 21;
[0025] The surface of the retractable tube 12 is provided with a heat insulation sleeve 22, which is flexible.
[0026] In specific implementation, such as Figure 1 , Figure 2 As shown, a novel heat-insulating automotive exhaust pipe includes an exhaust pipe body 10, which includes at least a straight pipe section 11 and a retractable pipe section 12.
[0027] The surface of the straight pipe section 11 is provided with an aluminum foil insulation layer 21. The aluminum foil insulation layer is made of aluminum foil and has good heat preservation effect. The aluminum foil insulation layer can be fixed by welding or bolts, clamps and other structures, which will not be described in detail here.
[0028] One or more heat insulation sleeves 22 are fitted on the surface of the telescopic tube section 12. The heat insulation sleeves 22 are flexible, giving them a certain degree of deformation capability. When the telescopic tube section 12 deforms, the heat insulation sleeves 22 can adapt to the deformation without being damaged. Compared with non-deformable materials such as aluminum foil, they can better meet the insulation requirements of the telescopic tube section 12. Furthermore, compared with other telescopic insulation structures specially customized for the telescopic tube section 12, the heat insulation sleeves 22 are simpler to manufacture and have lower production costs, and can be widely used for the insulation of exhaust pipes.
[0029] The novel heat-insulating automotive exhaust pipe provided in this embodiment of the utility model, by setting an aluminum foil heat insulation layer 21 in the straight pipe section 11 and a flexible heat insulation sleeve 22 in the telescopic pipe section 12, can make targeted heat insulation measures for exhaust pipes with different structures, thus ensuring the overall heat insulation effect.
[0030] Furthermore, the exhaust pipe body 10 also includes a bend, the surface of which is provided with an aluminum foil heat insulation layer 21 and / or a heat insulation sleeve 22.
[0031] In specific implementation, the exhaust pipe body 10 also includes a bend (not shown in the figure). The surface of the bend can be provided with an aluminum foil heat insulation layer 21 and / or a heat insulation sleeve 22 as needed to meet the heat insulation function of the bend in different chassis structures.
[0032] Furthermore, the heat insulation sleeve 22 includes a glass fiber layer 221, a high-temperature cotton layer 222, and a silicone cloth layer 223 arranged sequentially from the inside to the outside.
[0033] In specific implementation, such as Figure 5 As shown, the heat insulation sleeve 22 includes a glass fiber layer 221, a high-temperature cotton layer 222, and a silicone cloth layer 223 arranged sequentially from the inside to the outside. Through the layer structure design of the heat insulation sleeve 22, the heat insulation effect of the heat insulation sleeve 22 can be improved.
[0034] Furthermore, at least the high-temperature cotton layer 222 is provided with one or more diamond-shaped through holes 224.
[0035] In specific implementation, such as Figure 3 As shown, at least one or more diamond-shaped through holes 224 are provided in the high-temperature cotton layer 222. The through hole structure design of the diamond-shaped through hole 224 facilitates the installation of the heat insulation sleeve 22 and covers the bent part or bend of the telescopic tube 12, while avoiding the accumulation of redundant heat insulation sleeve 22 structure in the bent part or bend of the telescopic tube 12.
[0036] Furthermore, the edge of the heat insulation sleeve 22 is provided with a snap fastener structure 225 and / or a fixing strap 226.
[0037] In specific implementation, such as Figure 3 As shown, the edge of the insulation sleeve 22 is provided with snap fasteners 225 and / or fixing straps 226. The snap fasteners 225 include existing snap fasteners and other structures. By setting the snap fasteners 225 and fixing straps 226 individually or in combination, the installation of the insulation sleeve 22 can be facilitated and the installation efficiency can be improved. In addition, the combined snap fasteners 225 and fixing straps 226 can improve the installation stability of the insulation sleeve 22. Compared with the flange and bolt fastening structures used in existing insulation structures, the cost is lower and the installation is more convenient and faster.
[0038] Furthermore, the heat insulation sleeve 22 is provided with one or more clearance through holes 227.
[0039] In specific implementation, such as Figure 4 As shown, the heat insulation sleeve 22 has one or more clearance through holes 227. Through the clearance through holes 227, other branch pipes, testing devices, etc. can be connected to the exhaust pipe 10.
[0040] Preferably, the edge of the heat insulation sleeve 22 is provided with a notch that leads to the avoidance through hole 227, so as to facilitate the installation of the heat insulation sleeve 22 on the exhaust pipe body 10 where other branch pipes and testing devices are provided.
[0041] Furthermore, the surface of the retractable tube 12 is covered by two or more heat insulation sleeves 22.
[0042] In practice, by overlapping and covering the first and last parts of two or more heat insulation sleeves 22 onto the surface of the telescopic tube 12, the heat insulation requirements of the telescopic tube 12 when it is long or curved can be met. Moreover, there is no need to make special customization according to a specific length or curved shape, which makes the heat insulation sleeve 22 more versatile, has a wider range of applications, and is more practical.
[0043] This utility model also provides a new type of vehicle that uses the novel heat-insulating and heat-preserving automotive exhaust pipe described above.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A novel heat-insulated exhaust pipe for automobile, comprising an exhaust pipe body (10), the exhaust pipe body (10) comprising at least a straight pipe section (11) and an extendable pipe section (12), characterized in that: the surface of the straight pipe section (11) is provided with an aluminum foil heat insulation layer (21); the surface of the extendable pipe section (12) is provided with a heat insulation sleeve (22), the heat insulation sleeve (22) being flexible.
2. The novel heat-insulated exhaust pipe for a vehicle according to claim 1, characterized by: the exhaust pipe body (10) further comprises a bend pipe section, the surface of the bend pipe section being provided with an aluminum foil heat insulation layer (21) and / or a heat insulation sleeve (22).
3. The novel heat-insulated exhaust pipe for a vehicle according to claim 1, characterized by: the heat insulation sleeve (22) comprises, from inside to outside, a glass fiber layer (221), a high-temperature cotton layer (222) and a silica gel cloth layer (223).
4. The novel heat-insulated exhaust pipe for a vehicle according to claim 3, characterized by: at least the high-temperature cotton layer (222) is provided with one or more than one diamond-shaped through hole (224).
5. The novel heat-insulated exhaust pipe for a vehicle according to claim 4, characterized by: the edge of the heat insulation sleeve (22) is provided with a snap structure (225) and / or a fixing band (226).
6. The novel heat-insulated exhaust pipe for a vehicle according to claim 1, characterized by: the heat insulation sleeve (22) is provided with one or more than one avoiding through hole (227).
7. The novel heat-insulated exhaust pipe for a vehicle according to any one of claims 1 to 6, characterized by: the surface of the extendable pipe section (12) is covered by two or more than two heat insulation sleeves (22).
8. A new vehicle characterized by: use the novel heat-insulated exhaust pipe for automobile according to any one of claims 1-7.