Exhaust heat insulation plate with noise reduction function

Abstract

The utility model provides an exhaust insulation board with noise reduction function, which comprises an exhaust pipe, a protective partition plate, a three-way catalyst, a three-way protective box, a silencer and an air outlet, the protective partition plate is arranged above the exhaust pipe and fixedly mounted at the bottom of a vehicle body, the three-way catalyst is fixedly mounted at the front end of the exhaust pipe, and the three-way protective box is fixedly mounted at the rear end of the exhaust pipe. The three-way protection box is fixedly mounted on the outer side of the three-way catalyst; the silencer is fixedly installed at the rear end of the exhaust pipe, and the air outlet is fixedly installed at the rear end of the silencer. Due to the arrangement of the protection partition plate and the ternary protection box, the heat insulation effect is good, the noise reduction effect is obvious, and the equipment installation process is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of exhaust heat insulation technology, and in particular to an exhaust heat insulation board with noise reduction function. Background Technology

[0002] With increasingly stringent requirements for environmental protection and driving comfort, modern automobiles are placing greater emphasis on optimizing their exhaust systems during design and manufacturing. The exhaust system not only guides exhaust gases and reduces pollution emissions, but also directly impacts vehicle noise control and the driving experience. As a core component of this system, the high-temperature exhaust gases and noise generated during operation often pose two major challenges in automotive design. Therefore, effective heat insulation and noise reduction treatment of the exhaust pipe is crucial for improving vehicle performance and comfort.

[0003] Existing exhaust pipe heat insulation and noise reduction equipment has several significant drawbacks. First, heat insulation and noise reduction functions are usually separate, making it impossible to optimize the effects simultaneously, and the materials used have poor durability, easily aging or damaging under high temperatures and vibrations. Second, existing equipment is complex to install, increasing maintenance costs and difficulty. Furthermore, the noise suppression effect is limited, especially at high-power engines and high speeds, where the noise reduction effect is not noticeable.

[0004] Therefore, it is essential to invent an exhaust heat insulation plate with noise reduction function. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an exhaust heat insulation plate with noise reduction function, solving the issues of poor heat insulation effect, insignificant noise reduction effect, and complex installation process still present in existing exhaust heat insulation structures. An exhaust heat insulation plate with noise reduction function includes an exhaust pipe, a protective partition, a three-way catalytic converter, a three-way catalytic converter protective box, a muffler, and an exhaust outlet. The protective partition is positioned above the exhaust pipe and fixedly installed at the bottom of the vehicle body. The three-way catalytic converter is fixedly installed at the front end of the exhaust pipe, and the three-way catalytic converter protective box is fixedly installed on the outside of the three-way catalytic converter. The muffler is fixedly installed at the rear end of the exhaust pipe, and the exhaust outlet is fixedly installed at the rear end of the muffler.

[0006] The protective partition includes a heat insulation shell, a sound insulation shell, a stabilizing plate, and a vehicle body connecting plate. The sound insulation shell is fixedly installed on the outside of the heat insulation shell, and the stabilizing plate is fixedly installed below the heat insulation shell. The vehicle body connecting plate is fixedly installed on the outside of the stabilizing plate and on the bottom of the vehicle body.

[0007] The ternary protection box includes a double-layer isolation box, connecting edge sealing, end sealing plate, pipe wrapping tube, and interface wrapping structure. The connecting edge sealing is fixedly installed at both ends of the double-layer isolation box, and the end sealing plate is fixedly installed at the front end of the double-layer isolation box. The pipe wrapping tube is wrapped around the outside of the pipe connected to the exhaust manifold, and the interface wrapping structure is wrapped around the interface of the pipe connected to the exhaust manifold.

[0008] The protective partition is an overall downward-facing groove, and the heat insulation shell is made of aluminum alloy metal heat insulation material. The surface of the heat insulation shell is coated with a heat-insulating ceramic coating. The inner surface of the heat insulation shell is provided with a bracket, and the heat insulation shell can prevent the exhaust pipe from shaking through its internal bracket. The sound insulation shell is made of a layer of sound-absorbing cotton. The sound insulation shell will not come into contact with the exhaust pipe due to the obstruction of the heat insulation shell. The stabilizing plate is located below the heat insulation shell, and the heat insulation shell can be retracted inward through the stabilizing plate. The vehicle body connecting plate extends outward and is connected to the vehicle body by bolts.

[0009] The internal double-layer insulation box of the ternary protection box is a double-layer aluminum alloy metal box, and the interlayer inside the double-layer insulation box is filled with aerogel. The pipe wrapping tube and interface wrapping structure completely wrap the pipe connected to the exhaust manifold; the wrapping tube and interface wrapping structure are both made of heat-insulating ceramic tube.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The protective partition of this utility model has the following functions: ① Heat insulation: Through its internal heat-insulating shell and external heat-insulating ceramic coating, the protective partition effectively blocks the high temperature transmitted by the exhaust pipe, preventing heat from diffusing to the bottom of the vehicle body and surrounding components, protecting the vehicle body from high-temperature damage, and improving the comfort of the vehicle interior; ② Noise reduction: Through its sound-insulating shell and internal sound-absorbing cotton filling, the protective partition effectively reduces the noise generated by the exhaust pipe. The sound-insulating material can absorb and attenuate noise fluctuations in the exhaust system, keeping the vehicle at a low noise level during driving, thereby improving ride comfort; ③ Stability and support:

[0012] The protective baffle provides additional support for the exhaust pipe through the stabilizing plate and the vehicle body connecting plate, ensuring that it will not shake or shift due to thermal expansion or vibration during operation. This design guarantees the stability of the thermal insulation system and avoids damage or efficiency reduction caused by instability.

[0013] 2. The three-way protective box of this utility model has the following functions: ① It provides heat insulation protection for the three-way catalytic converter:

[0014] The three-way catalytic converter protection box provides additional thermal isolation protection around the three-way catalytic converter, preventing direct damage to the catalyst from the high temperature of the exhaust pipe. The internal double-layer isolation box and the filled aerogel effectively prevent heat conduction, ensuring that the three-way catalytic converter will not overheat when working efficiently, thereby extending its service life; ② Prevent external pollution: The three-way catalytic converter protection box (4) prevents external substances from entering the three-way catalytic converter through its sealed structure, ensuring that the catalyst surface is clean and avoiding the impact of pollution on its catalytic performance. This helps maintain the purification efficiency of the emission system and reduce harmful substances in the exhaust gas; ③ Enhance structural stability: Through the design of the double-layer isolation box and the end sealing plate, the three-way catalytic converter protection box strengthens the stability of the entire exhaust system. It not only protects the three-way catalytic converter from the effects of heat and external factors, but also ensures that the entire protection system can work stably in high temperature and vibration environments, reducing failures and wear.

[0015] 3. This utility model discloses an exhaust heat insulation plate with noise reduction function, which comprehensively improves the performance of the exhaust system by integrating heat insulation, noise reduction and stabilization functions. Its heat insulation shell and heat insulation ceramic coating effectively prevent high temperature heat from spreading to the vehicle body, protecting the vehicle body from heat damage; the sound insulation shell and sound-absorbing cotton reduce the noise generated by the exhaust pipe when it is working, improving the quietness of the vehicle interior; in addition, the stabilization plate and the vehicle body connecting plate ensure that the exhaust pipe remains stable under thermal expansion and vibration, avoiding loosening or damage, and enhancing the durability and stability of the entire system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is an enlarged view of point A of this utility model.

[0018] Figure 3 This is an enlarged view of section B of this utility model.

[0019] In the picture:

[0020] Exhaust pipe 1, protective partition 2, heat insulation shell 21, sound insulation shell 22, stabilizing plate 23, vehicle body connecting plate 24, three-way catalytic converter 3, three-way protective box 4, double-layer insulation box 41, connecting edge seal 42, end seal plate 43, pipe wrapping pipe 44, interface wrapping structure 45, muffler 5, exhaust port 6. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] As attached Figure 1 To be continued Figure 3 As shown.

[0023] This utility model provides an exhaust heat insulation plate with noise reduction function, including an exhaust pipe 1, a protective partition 2, a three-way catalytic converter 3, a three-way protective box 4, a muffler 5, and an exhaust outlet 6, wherein: the protective partition 2 is disposed above the exhaust pipe 1 and fixedly installed at the bottom of the vehicle body, and the three-way catalytic converter 3 is fixedly installed at the front end of the exhaust pipe 1, and the three-way protective box 4 is fixedly installed on the outside of the three-way catalytic converter 3; the muffler 5 is fixedly installed at the rear end of the exhaust pipe 1, and the exhaust outlet 6 is fixedly installed at the rear end of the muffler 5.

[0024] The protective partition 2 includes a heat insulation shell 21, a sound insulation shell 22, a stabilizing plate 23, and a vehicle body connecting plate 24. The sound insulation shell 22 is fixedly installed on the outside of the heat insulation shell 21, and the stabilizing plate 23 is fixedly installed below the heat insulation shell 21. The vehicle body connecting plate 24 is fixedly installed on the outside of the stabilizing plate 23, and the vehicle body connecting plate 24 is fixedly installed at the bottom of the vehicle body.

[0025] The ternary protection box 4 includes a double-layer isolation box 41, a connecting edge 42, an end sealing plate 43, a pipe wrapping tube 44, and an interface wrapping structure 45. The connecting edge 42 is fixedly installed at both ends of the double-layer isolation box 41, and the end sealing plate 43 is fixedly installed at the front end of the double-layer isolation box 41. The pipe wrapping tube 44 wraps around the outside of the pipe connected to the exhaust manifold, and the interface wrapping structure 45 wraps around the interface of the pipe connected to the exhaust manifold.

[0026] The protective partition 2 is an overall downward-facing groove, and the heat insulation shell 21 is made of aluminum alloy metal heat insulation material. The surface of the heat insulation shell 21 is coated with a heat insulation ceramic coating. The inner surface of the heat insulation shell 21 is provided with a bracket, and the heat insulation shell 21 can prevent the exhaust pipe 1 from shaking through its internal bracket. The sound insulation shell 22 is made of a layer of sound-absorbing cotton. The sound insulation shell 22 will not come into contact with the exhaust pipe 1 due to the obstruction of the heat insulation shell 21. The stabilizing plate 23 is below the heat insulation shell 21, and the heat insulation shell 21 can be retracted inward through the stabilizing plate 23. The vehicle body connecting plate 24 extends outward and is connected to the vehicle body by bolts.

[0027] The double-layer isolation box 41 inside the ternary protection box 4 is a double-layer aluminum alloy metal box, and the interlayer inside the double-layer isolation box 41 is filled with aerogel. The pipe wrapping tube 44 and the interface wrapping structure 45 completely wrap the pipe connected to the exhaust manifold; both the wrapping tube 44 and the interface wrapping structure 45 are made of heat-insulating ceramic tubes.

[0028] The installation process of this equipment involves several steps. First, all relevant components need to be prepared, such as exhaust pipe 1, protective partition 2, three-way catalytic converter 3, three-way catalytic converter protective box 4, muffler 5, and exhaust port 6, and the installation area needs to be cleaned. Next, the three-way catalytic converter 3 is first fixedly installed at the front end of exhaust pipe 1, ensuring a secure connection. Then, the three-way catalytic converter protective box 4 is installed on the outside of the three-way catalytic converter 3, ensuring that the double-layer isolation box 41 tightly wraps the catalytic converter, and is firmly fixed using end sealing plate 43 and connecting sealing edge 42. Subsequently, the protective partition 2 is installed. First, the heat insulation shell 21 is fixed above the exhaust pipe 1 with a bracket to ensure effective heat insulation, while the sound insulation shell 22 is installed on the outside of the heat insulation shell 21 to avoid direct contact with the exhaust pipe 1. Next, the stabilizing plate 23 is fixed below the heat insulation shell 21 to ensure its stability, and the vehicle body connecting plate 24 is connected to the vehicle body with bolts to ensure the protective partition 2 is securely installed. After that, the muffler 5 is installed at the rear end of exhaust pipe 1, ensuring a sealed connection. Finally, the exhaust port 6 is fixed at the rear end of the muffler 5 to ensure smooth exhaust flow. After installation, check that all connections are secure, start the vehicle for functional testing to ensure that the heat insulation and noise reduction effects meet expectations, and conduct a trial run to check for any abnormal noise or overheating to ensure that the installation quality meets the standards.

[0029] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. An exhaust heat insulation panel with noise reduction function, characterized in that: It includes an exhaust pipe (1), a protective partition (2), a three-way catalytic converter (3), a three-way protective box (4), a muffler (5), and an exhaust port (6), wherein: the protective partition (2) is located above the exhaust pipe (1) and is fixedly installed at the bottom of the vehicle body, and the three-way catalytic converter (3) is fixedly installed at the front end of the exhaust pipe (1), and the three-way protective box (4) is fixedly installed on the outside of the three-way catalytic converter (3); the muffler (5) is fixedly installed at the rear end of the exhaust pipe (1), and the exhaust port (6) is fixedly installed at the rear end of the muffler (5).

2. The exhaust heat insulation panel with noise reduction function as described in claim 1, characterized in that: The protective partition (2) includes a heat insulation shell (21), a sound insulation shell (22), a stabilizing plate (23), and a vehicle body connecting plate (24). The sound insulation shell (22) is fixedly installed on the outside of the heat insulation shell (21), and the stabilizing plate (23) is fixedly installed below the heat insulation shell (21). The vehicle body connecting plate (24) is fixedly installed on the outside of the stabilizing plate (23) and is fixedly installed at the bottom of the vehicle body.

3. The exhaust heat insulation panel with noise reduction function as described in claim 1, characterized in that: The three-element protective box (4) includes a double-layer isolation box (41), a connecting seal (42), an end seal (43), a pipe wrapping tube (44), and an interface wrapping structure (45). The connecting seal (42) is fixedly installed at both ends of the double-layer isolation box (41), and the end seal (43) is fixedly installed at the front end of the double-layer isolation box (41). The pipe wrapping tube (44) is wrapped around the outside of the pipe connected to the exhaust manifold, and the interface wrapping structure (45) is wrapped around the interface of the pipe connected to the exhaust manifold.

4. The exhaust heat insulation panel with noise reduction function as described in claim 2, characterized in that: The protective partition (2) is an overall downward-facing groove, and the heat insulation shell (21) is made of aluminum alloy metal heat insulation material. The surface of the heat insulation shell (21) is coated with a heat insulation ceramic coating. The inner surface of the heat insulation shell (21) is provided with a bracket, and the heat insulation shell (21) can prevent the exhaust pipe (1) from shaking through its internal bracket. The sound insulation shell (22) is made of a layer of sound-absorbing cotton. The sound insulation shell (22) will not come into contact with the exhaust pipe (1) due to the obstruction of the heat insulation shell (21). The stabilizing plate (23) is below the heat insulation shell (21), and the heat insulation shell (21) can be retracted inward through the stabilizing plate (23). The vehicle body connecting plate (24) extends outward and is connected to the vehicle body by bolts.

5. The exhaust heat insulation panel with noise reduction function as described in claim 3, characterized in that: The double-layer isolation box (41) inside the ternary protective box (4) is a double-layer aluminum alloy metal box, and the interlayer inside the double-layer isolation box (41) is filled with aerogel. The pipe wrapping tube (44) and the interface wrapping structure (45) completely wrap the pipe connected to the exhaust manifold. The wrapping tube (44) and the interface wrapping structure (45) are both made of heat-insulating ceramic tube.

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