Automobile silencer with energy-saving and emission-reducing effects

Abstract

The automobile silencer comprises a silencing barrel, an air inlet is formed in the left end of the silencing barrel, an exhaust port is formed in the right end of the silencing barrel, a filtering device is installed in the exhaust port, a heat conduction copper layer is installed on the outer surface of the silencing barrel, and a heat conduction copper layer is installed on the outer surface of the silencing barrel. And a silencing device is mounted in the silencing barrel. According to the automobile silencer with the energy-saving and emission-reducing effects, the mineral wool layer has good sound absorption performance and sound insulation performance, then waste gas can be subjected to preliminary silencing treatment, after passing through the mineral wool layer, the waste gas enters the position between the first mounting plate and the second mounting plate through the two second pipes, and the waste gas enters the second mounting plate through the second pipes; and the small through holes are formed in the first pipe and the second pipe and can disperse the noise, so that the noise is further treated and muffled, and the muffling effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile exhaust noise elimination, and particularly relates to an automobile muffler with the functions of energy conservation and emission reduction. Background Technique

[0002] After the engine of an automobile does work, it is immediately followed by an exhaust stroke, that is, the exhaust gas in the cylinder is discharged. Since the exhaust gas at this time is high-temperature and high-pressure, if it is directly discharged through the exhaust pipe, it will generate a large amount of noise, thus causing noise pollution. Therefore, in order to eliminate the huge sound generated when the engine discharges the high-temperature and high-pressure gas after combustion, a muffler needs to be installed at the automobile exhaust pipe for noise elimination treatment.

[0003] The existing mufflers can be divided into resistive mufflers and reactive mufflers. The resistive muffler absorbs sound energy by filling sound-absorbing materials in the exhaust pipe to achieve the purpose of noise elimination. The reactive muffler sharply increases or decreases the cross-sectional area of the pipe in a certain length part inside the muffler, so that the sound wave generates reflection and destructive interference during propagation to achieve the purpose of noise elimination. However, when the above two types of mufflers eliminate noise, the effect is still relatively average. Therefore, it is particularly important to combine the above two noise elimination methods to improve the noise elimination effect of the muffler. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an automobile muffler with the functions of energy conservation and emission reduction, which can effectively solve the problem that the noise elimination effect of the muffler is average.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An automobile muffler with the functions of energy conservation and emission reduction, including a sound insulation cylinder body, an air inlet is installed at the left end of the sound insulation cylinder body, an exhaust port is installed at the right end of the sound insulation cylinder body, a filtering device is installed in the exhaust port, a heat-conducting copper layer is installed on the outer surface of the sound insulation cylinder body, and a sound insulation device is installed in the sound insulation cylinder body.

[0007] Preferably, the silencing device includes a first mounting plate, a second mounting plate and a mineral wool layer. A first pipe is inserted and installed in the middle of the right end of the first mounting plate. Second pipes are inserted and installed in the upper part and the lower part of the right end of the second mounting plate respectively. A number of through holes are formed on the left part of the outer surface of the first pipe and the right parts of the outer surfaces of the two second pipes. The first mounting plate is installed on the right inner wall of the silencing cylinder body. The second mounting plate is installed between the upper inner wall and the lower inner wall of the silencing cylinder body. The mineral wool layer is installed on the left inner wall of the silencing cylinder body. Due to the good sound absorption performance and sound insulation performance of the mineral wool layer, the waste gas can be preliminarily silenced. After the waste gas passes through the mineral wool layer, the waste gas then enters between the first mounting plate and the second mounting plate through the two second pipes, and finally is discharged through the first pipe. Through the small through holes provided on the first pipe and the second pipes, these through holes can disperse the noise, thereby further processing and silencing the noise, and improving the silencing effect of the device.

[0008] Preferably, the filtering device includes a mounting frame, a filter screen is installed inside the mounting frame, fixing screws are installed at the upper end and the lower end of the mounting frame respectively, and the mounting frame is installed in the exhaust port through the two fixing screws. When the waste gas is discharged, the filter screen on the mounting frame can further filter the particulate impurities in the waste gas, improving the purification effect and emission quality of the device.

[0009] Preferably, screw holes are formed at the upper end and the lower end of the exhaust port.

[0010] Preferably, the first pipe is located between the two second pipes, and there is a gap between the first pipe and the second mounting plate.

[0011] Preferably, the fixing screws and the screw holes are of the same size and are vertically corresponding in position.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. When the automobile introduces the waste gas into the silencing cylinder body from the air inlet, first, through the design of the mineral wool layer on the silencing device, which is a commonly used sound absorber material for mufflers, it not only has the characteristics of being flame-retardant and corrosion-resistant, but also has good sound absorption performance and sound insulation performance, and can absorb noise and convert it into heat energy, so as to be able to conduct preliminary silencing treatment on the waste gas. Then, after the waste gas passes through the mineral wool layer, the waste gas then enters between the first mounting plate and the second mounting plate through the two second pipes, and finally is discharged through the first pipe. Through the small through holes provided on the first pipe and the second pipes, these through holes can disperse the noise, thereby further processing and silencing the noise, and improving the silencing effect of the device.

[0014] 2. The filter device is fixed inside the exhaust port by two fixing screws through the mounting bracket on the filter device. When the waste gas is discharged, the filter screen on the mounting bracket can further filter the particulate impurities in the waste gas, improving the purification effect and emission quality of the device.

[0015] 3. Through the design of the heat-conducting copper layer on the outer surface of the silencing cylinder body, after the mineral wool layer absorbs noise and converts it into heat energy, the heat-conducting copper layer can conduct heat quickly, improving the heat dissipation efficiency of the device. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of an automobile muffler with energy-saving and emission-reduction effects according to the present invention;

[0017] Figure 2 It is a schematic diagram of the overall structure of the silencing device of an automobile muffler with energy-saving and emission-reduction effects according to the present invention;

[0018] Figure 3 It is a schematic diagram of the overall structure of the filter device of an automobile muffler with energy-saving and emission-reduction effects according to the present invention;

[0019] Figure 4 It is a schematic diagram of the overall structure of the exhaust port of an automobile muffler with energy-saving and emission-reduction effects according to the present invention.

[0020] In the figure: 1. Silencing cylinder body; 2. Silencing device; 3. Filter device; 4. Air inlet; 5. Exhaust port; 6. Heat-conducting copper layer; 20. First mounting plate; 21. Second mounting plate; 22. Mineral wool layer; 23. First pipe; 24. Second pipe; 25. Through hole; 30. Mounting bracket; 31. Filter screen; 32. Fixing screw; 40. Screw hole. Detailed Embodiment

[0021] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "equipped with", "connection", etc. should be understood in a broad sense. 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] As Figures 1-4 shown, an automobile muffler with energy-saving and emission-reduction effects includes a muffler cylinder body 1. An air inlet 4 is installed at the left end of the muffler cylinder body 1, and an exhaust port 5 is installed at the right end of the muffler cylinder body 1. A filtering device 3 is installed in the exhaust port 5, a heat-conducting copper layer 6 is installed on the outer surface of the muffler cylinder body 1, and a muffling device 2 is installed inside the muffler cylinder body 1.

[0025] The muffling device 2 includes a first mounting plate 20, a second mounting plate 21 and a mineral wool layer 22. A first pipe 23 is inserted and installed in the middle of the right end of the first mounting plate 20. Second pipes 24 are inserted and installed in the upper part and the lower part of the right end of the second mounting plate 21. A number of through holes 25 are opened on the left part of the outer surface of the first pipe 23 and the right parts of the outer surfaces of the two second pipes 24. The first mounting plate 20 is installed on the right inner wall of the muffler cylinder body 1, the second mounting plate 21 is installed between the upper inner wall and the lower inner wall of the muffler cylinder body 1, and the mineral wool layer 22 is installed on the left inner wall of the muffler cylinder body 1; the first pipe 23 is located between the two second pipes 24, and there is a gap between the first pipe 23 and the second mounting plate 21. Due to the good sound absorption performance and sound insulation performance of the mineral wool layer 22, the exhaust gas can be preliminarily muffled. After the exhaust gas passes through the mineral wool layer 22, the exhaust gas then enters between the first mounting plate 20 and the second mounting plate 21 through the two second pipes 24, and finally is discharged through the first pipe 23. Through the small through holes 25 provided on the first pipe 23 and the second pipes 24, these through holes 25 can disperse the noise, thereby further processing and muffling the noise, and improving the muffling effect of the device.

[0026] The filtering device 3 includes a mounting frame 30. A filter screen 31 is installed in the mounting frame 30. Fixing screws 32 are installed at the upper end and the lower end of the mounting frame 30. The mounting frame 30 is installed in the exhaust port 5 through the two fixing screws 32. When the exhaust gas is discharged, the filter screen 31 on the mounting frame 30 can further filter the particulate impurities in the exhaust gas, improving the purification effect and emission quality of the device.

[0027] Screw holes 40 are opened at the upper end and the lower end of the exhaust port 5; the fixing screws 32 are of the same size as the screw holes 40 and are vertically corresponding in position.

[0028] It should be noted that the present utility model is an automobile muffler with the functions of energy conservation and emission reduction. When the automobile introduces exhaust gas into the muffler cylinder body 1 from the air inlet 4, firstly, through the design of the mineral wool layer 22 on the muffler device 2, which is a commonly used sound-absorbing material for mufflers. It not only has characteristics such as flame retardancy and corrosion resistance, but also has good sound-absorbing performance and sound insulation performance, and can absorb noise and convert it into heat energy, thereby being able to conduct preliminary muffling treatment on the exhaust gas. Moreover, due to the design of the heat-conducting copper layer 6 on the outer surface of the muffler cylinder body 1, after the mineral wool layer 22 absorbs noise and converts it into heat energy, heat conduction can be quickly carried out through the heat-conducting copper layer 6, improving the heat dissipation efficiency of the device. Then, after the exhaust gas passes through the mineral wool layer 22, the exhaust gas enters between the first mounting plate 20 and the second mounting plate 21 through two second pipes 24, and finally is discharged through the first pipe 23. Through the small through holes 25 provided on the first pipe 23 and the second pipes 24, these through holes 25 can disperse the noise, thereby further processing and muffling the noise, improving the muffling effect of the device. Finally, when the exhaust gas is discharged, the filter screen 31 on the mounting frame 30 can further filter the particulate impurities in the exhaust gas, improving the purification effect and emission quality of the device.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automobile muffler with energy-saving and emission-reducing effects, comprising a muffler cylinder (1), characterized in that: The left end of the silencer cylinder (1) is provided with an air inlet (4), the right end of the silencer cylinder (1) is provided with an exhaust port (5), a filter device (3) is provided in the exhaust port (5), a heat-conducting copper layer (6) is provided on the outer surface of the silencer cylinder (1), and a silencer device (2) is provided in the silencer cylinder (1); the silencer device (2) comprises a No. 1 mounting plate (20), a No. 2 mounting plate (21) and a mineral wool layer (22), a No. 1 pipe (23) is inserted in the middle of the right end of the No. 1 mounting plate (20), a No. 2 pipe (24) is inserted in the upper right end and the lower right end of the No. 2 mounting plate (21), and the left outer surface of the No. 1 pipe (23) and the two No. 2 pipes (24) are provided. The right part of the outer surface of the No. 1 pipe (24) is provided with a plurality of through holes (25); the No. 1 mounting plate (20) is mounted on the right inner wall of the silencer cylinder (1); the No. 2 mounting plate (21) is mounted between the upper inner wall and the lower inner wall of the silencer cylinder (1); the mineral wool layer (22) is mounted on the left inner wall of the silencer cylinder (1); the filtering device (3) comprises a mounting frame (30); a filter screen (31) is mounted in the mounting frame (30); fixing screws (32) are mounted on the upper and lower ends of the mounting frame (30); the mounting frame (30) is mounted in the exhaust port (5) by means of two fixing screws (32); screw holes (40) are mounted on the upper and lower ends of the exhaust port (5).

2. The automobile muffler with energy-saving and emission-reducing effects according to claim 1 is characterized in that: The first pipe (23) is located between the two second pipes (24), and there is a gap between the first pipe (23) and the second mounting plate (21).

3. The automobile muffler with energy-saving and emission-reducing effects according to claim 1 is characterized in that: The fixing screw (32) and the screw hole (40) have the same size and are located in corresponding positions.

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