Generator noise reduction structure

Abstract

The utility model relates to the technical field of generators, in particular to a generator silencing structure which comprises an air inlet pipe, at least two partition plates, a connecting ring and an exhaust pipe, the air inlet pipe is of a hollow structure, the partition plates are arranged in the air inlet pipe in a staggered mode, and the connecting ring is movably connected with the air inlet pipe and arranged on the outer side of the air inlet pipe in a sleeved mode. The exhaust pipe is of a structure with an opening in the front end and a hollow inside, the exhaust pipe is fixedly arranged on the outer side of the connecting ring, exhaust holes are evenly distributed outside the exhaust pipe, noise enters from the air inlet pipe and is exhausted from the exhaust holes after being attenuated by the partition plates, and by arranging the multiple partition plates in the air inlet pipe in a staggered mode, the attenuation time of the noise is prolonged; by arranging the exhaust pipe outside the air inlet pipe in a sleeved mode, attenuated noise can be exhausted from the exhaust holes evenly distributed outside the exhaust pipe, a good noise reduction effect is achieved, the noise reduction structure is simple in overall structure and low in production cost, and therefore the production cost of the generator is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of generator technology, and in particular to a generator noise reduction structure. Background Technology

[0002] A generator is a mechanical device that converts other forms of energy into electrical energy. It is widely used in industrial and agricultural production, national defense, science and technology, and daily life. The noise generated by existing generators during operation is usually eliminated by simple silencers, but there is still a lot of noise when in use.

[0003] The prior art CN202023668U discloses a gasoline generator muffler, which consists of a gasoline engine intake pipe, a first muffler chamber, a second muffler chamber, a third muffler chamber, pipe A, pipe B, an exhaust pipe, and a fixing arm. The first muffler chamber, the second muffler chamber, and the third muffler chamber have fixing arms on their sides. The gasoline engine intake pipe is connected to the first muffler chamber. The first muffler chamber is connected to the second muffler chamber through pipe A. The second muffler chamber is connected to the third muffler chamber through pipe B. This structure can achieve a better muffler effect.

[0004] However, the aforementioned generator muffler has a relatively complex structure, resulting in a high production cost for the muffler, which in turn increases the production cost of the generator. Utility Model Content

[0005] The purpose of this utility model is to provide a generator silencing structure, which aims to solve the technical problem that the existing generator silencing devices have a relatively complex structure, resulting in high production costs and thus increasing the production cost of the generator.

[0006] To achieve the above objectives, this utility model provides a generator silencing structure, including an intake pipe, a partition, a connecting ring, and an exhaust pipe. The intake pipe has an internal hollow structure. There are at least two partitions, which are staggered inside the intake pipe. The connecting ring is movably connected to the intake pipe and is sleeved on the outside of the intake pipe. The exhaust pipe has an open front end and an internal hollow structure, and is fixed on the outside of the connecting ring. Exhaust holes are evenly distributed on the outside of the exhaust pipe. Noise-generating airflow enters from the intake pipe, and after the sound is attenuated by the partitions, it is discharged from the exhaust holes.

[0007] The intake pipe has protrusions evenly distributed on its outside, and the connecting ring has a groove. The groove of the connecting ring cooperates with the protrusions of the intake pipe. By pushing the protrusions of the intake pipe into the groove of the connecting ring, the connecting ring is limited and fixed outside the intake pipe.

[0008] The number of partitions is three or four, and the partitions are staggered in the air intake pipe to form an S-shaped silencing channel.

[0009] The generator noise reduction structure also includes noise reduction cotton, which is tightly attached to both the intake pipe and the exhaust pipe for further noise reduction.

[0010] The generator silencing structure also includes a connecting flange, which is located on the side of the intake pipe away from the exhaust pipe, and is used to connect the intake pipe to the exhaust end of the generator.

[0011] This utility model discloses a generator silencing structure. The connecting ring slides laterally outside the intake pipe, thereby causing the exhaust pipe to slide laterally outside the intake pipe. The distance between the intake and exhaust pipes can be adjusted according to actual usage requirements. Multiple baffles are staggered inside the intake pipe, attenuating noise entering the intake pipe. The long silencing channel increases the sound attenuation time. The exhaust pipe is fitted over the intake pipe, allowing the attenuated noise to be discharged from the evenly distributed exhaust holes outside the exhaust pipe, achieving a good silencing effect. This silencing structure has a simple overall structure and low production cost, thus greatly reducing the production cost of the generator. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the generator silencing structure according to the first embodiment of this utility model.

[0014] Figure 2 This is a cross-sectional schematic diagram along the partition of the generator silencing structure of the first embodiment of this utility model.

[0015] Figure 3 This is the generator silencing structure of the first embodiment of this utility model. Figure 2 Enlarged view of point A.

[0016] In the diagram: 101-Intake pipe, 102-Baffle plate, 103-Connecting ring, 104-Exhaust pipe, 105-Sound-absorbing cotton, 106-Connecting flange, 107-Exhaust hole, 108-Protrusion, 109-Groove. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] First Embodiment

[0019] Please see Figures 1-3 , Figure 1 This is a schematic diagram of the overall structure of the generator silencing structure according to the first embodiment of this utility model. Figure 2 This is a cross-sectional schematic diagram of the generator silencing structure along the partition plate 102 according to the first embodiment of this utility model. Figure 3 This is the generator silencing structure of the first embodiment of this utility model. Figure 2 Enlarged view of point A.

[0020] This utility model provides a generator silencing structure, including an intake pipe 101, a partition 102, a connecting ring 103, an exhaust pipe 104, sound-absorbing cotton 105, and a connecting flange 106. This solution addresses the problem that existing generator silencing devices have complex structures, leading to high production costs and consequently increasing generator production costs. It is understood that this solution can be used in scenarios where noise generated during generator operation needs to be eliminated.

[0021] In this embodiment, the connecting ring 103 slides laterally outside the intake pipe 101, thereby driving the exhaust pipe 104 to slide laterally outside the intake pipe 101. This allows for adjustment of the distance between the intake pipe 101 and the exhaust pipe 104 according to actual usage requirements. Multiple baffles 102 are staggered inside the intake pipe 101, attenuating noise entering the intake pipe 101. The long silencing channel increases the sound attenuation time. The exhaust pipe 104 is fitted over the intake pipe 101, allowing the attenuated noise to be discharged from the evenly distributed exhaust holes 107 outside the exhaust pipe 104, achieving a good silencing effect. This silencing structure has a simple overall structure and low production cost, thus greatly reducing the production cost of the generator.

[0022] The intake pipe 101 has a hollow internal structure. There are at least two partitions 102, which are staggered inside the intake pipe 101. The connecting ring 103 is movably connected to the intake pipe 101 and is sleeved on the outside of the intake pipe 101. The exhaust pipe 104 has an open front end and a hollow internal structure. The exhaust pipe 104 is fixed on the outside of the connecting ring 103. Exhaust holes 107 are evenly distributed on the outside of the exhaust pipe 104. Noise-generating airflow enters from the intake pipe 101 and is discharged from the exhaust holes 107 after the sound is attenuated by the partitions 102.

[0023] Secondly, the intake pipe 101 has evenly distributed protrusions 108 on its outer side, and the connecting ring 103 has a groove 109. The groove 109 of the connecting ring 103 cooperates with the protrusions 108 of the intake pipe 101. By pushing the protrusions 108 of the intake pipe 101 into the groove 109 of the connecting ring 103, the connecting ring 103 is limited and fixed outside the intake pipe 101. The protrusions 108 have high resilience. When it is necessary to adjust the position of the connecting ring 103, the exhaust pipe 104 is moved laterally, thereby driving the connecting ring 103 to move laterally outside the intake pipe 101. When the groove of the connecting ring 103... When the groove 109 contacts the protrusion 108 of the intake pipe 101, the exhaust pipe 104 continues to move laterally. The protrusion 108 of the intake pipe 101 is compressed by the pushing force, thereby pushing the protrusion 108 of the intake pipe 101 into the groove 109 of the connecting ring 103. Afterward, the protrusion 108 of the intake pipe 101 will return to its original state, so that the protrusion 108 of the intake pipe 101 is limited and fixed in the groove 109 of the connecting ring 103, thereby limiting and fixing the connecting ring 103 outside the intake pipe 101, and further limiting and fixing the exhaust pipe 104 outside the intake pipe 101.

[0024] Furthermore, the number of partitions 102 is three or four. The partitions 102 are staggered in the intake pipe 101 to form an S-shaped silencing channel. The multiple partitions 102 are evenly distributed in the intake pipe 101 and located near the exhaust pipe 104. The multiple partitions 102 divide the space in the intake pipe 101 into a narrow silencing channel, thereby increasing the length of the silencing channel and thus increasing the time for noise to attenuate in the silencing channel, thereby improving the silencing effect.

[0025] Meanwhile, the sound-absorbing cotton 105 is tightly attached to both the intake pipe 101 and the exhaust pipe 104 to further reduce noise. The sound-absorbing cotton 105 in the intake pipe 101 is located on the side away from the exhaust pipe 104, and the sound-absorbing cotton 105 in the exhaust pipe 104 is located on the side closer to the intake pipe 101. The sound-absorbing cotton 105 is made of glass rock wool, which has the effect of heat insulation and sound absorption, thereby further increasing the sound absorption effect.

[0026] Finally, the connecting flange 106 is located on the side of the intake pipe 101 away from the exhaust pipe 104, for connecting the intake pipe 101 to the outlet end of the generator, so that when the generator is working, the noise airflow can enter the intake pipe 101 from the outlet end of the generator.

[0027] When using this utility model, first determine the distance between the exhaust pipe 104 and the intake pipe 101 according to the usage requirements. When it is necessary to adjust the position of the connecting ring 103, move the exhaust pipe 104 laterally, thereby causing the connecting ring 103 to move laterally outside the intake pipe 101. When the groove 109 of the connecting ring 103 contacts the protrusion 108 of the intake pipe 101, continue to move the exhaust pipe 104 laterally. The protrusion 108 of the intake pipe 101 is compressed by the pushing force, thereby making the intake... The protrusion 108 of the air pipe 101 is pushed into the groove 109 of the connecting ring 103. After that, the protrusion 108 of the air intake pipe 101 returns to its original state, so that the protrusion 108 of the air intake pipe 101 is limited and fixed in the groove 109 of the connecting ring 103, thereby limiting and fixing the connecting ring 103 outside the air intake pipe 101, and further limiting and fixing the exhaust pipe 104 outside the air intake pipe 101, thereby realizing the adjustment of the distance between the exhaust pipe 104 and the air intake pipe 101.

[0028] Then, the intake pipe 101 is connected to the generator's exhaust pipe via the connecting flange 106, so that when the generator is working, the noise airflow generated during operation can enter the intake pipe 101 from the generator's exhaust end. After being silenced by the sound-absorbing cotton 105, the noise airflow will gradually enter the silencer channel divided by the partition 102. After the sound is attenuated in the silencer channel, the noise airflow will enter the exhaust pipe 104 and finally be discharged from the exhaust holes 107 evenly distributed outside the exhaust pipe 104, completing the noise silencing process. During the entire silencing process, because multiple partitions 102 divide the space inside the intake pipe 101 into a narrow silencer channel, the length of the silencer channel is increased, thereby increasing the time for noise to attenuate in the silencer channel and improving the silencing effect. At the same time, by having the sound-absorbing cotton 105 tightly attached inside both the intake pipe 101 and the exhaust pipe 104, the noise can be further silencing, thus achieving a better silencing effect.

[0029] In summary, the lateral sliding of the connecting ring 103 outside the intake pipe 101 causes the exhaust pipe 104 to slide laterally outside the intake pipe 101, thereby allowing the distance between the intake pipe 101 and the exhaust pipe 104 to be adjusted according to actual usage requirements. By staggering multiple baffles 102 within the intake pipe 101, the baffles 102 attenuate noise entering the intake pipe 101, and the long silencing channel increases the sound attenuation time. By fitting the exhaust pipe 104 over the intake pipe 101, the attenuated noise can be discharged from the evenly distributed exhaust holes 107 outside the exhaust pipe 104, achieving a good silencing effect. This silencing structure has a simple overall structure and low production cost, thus greatly reducing the production cost of the generator.

[0030] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A generator muffler structure, comprising an air intake pipe, characterized in that, It also includes partitions, connecting rings, and exhaust pipes. The intake pipe has an internal hollow structure. There are at least two partitions, which are staggered inside the intake pipe. The connecting ring is movably connected to the intake pipe and is sleeved on the outside of the intake pipe. The exhaust pipe has an open front end and an internal hollow structure, and is fixed on the outside of the connecting ring. Exhaust holes are evenly distributed on the outside of the exhaust pipe. Noise-generating airflow enters from the intake pipe, and after the sound is attenuated by the partitions, it is discharged from the exhaust holes.

2. The generator silencing structure as described in claim 1, characterized in that, The intake pipe has protrusions evenly distributed on its outside, and the connecting ring has a groove. The groove of the connecting ring cooperates with the protrusions of the intake pipe. By pushing the protrusions of the intake pipe into the groove of the connecting ring, the connecting ring is limited and fixed outside the intake pipe.

3. The generator noise reduction structure as described in claim 1, characterized in that, The number of baffles is three or four, and the baffles are staggered inside the air intake pipe to form an S-shaped silencing channel.

4. The generator silencing structure as described in claim 1, characterized in that, The generator noise reduction structure also includes noise reduction cotton, which is tightly attached to both the intake pipe and the exhaust pipe for further noise reduction.

5. The generator noise reduction structure as described in claim 1, characterized in that, The generator silencing structure also includes a connecting flange, which is located on the side of the intake pipe away from the exhaust pipe, and is used to connect the intake pipe to the exhaust end of the generator.

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