Generator set air duct structure

Abstract

The utility model relates to an air duct structure of a generator set, which comprises an engine and a silencer component arranged on one side of the engine, and a silencer shell is provided with a first air inlet cover and a second air inlet cover. A first heat dissipation channel is formed among a gap between the air cylinder cover and the air guide cover, the first air inlet cover and a gap between the silencer shell and one side of the silencer body, and a second heat dissipation channel is formed among a gap between the fan blades and the first air guide cover and a gap between the silencer shell and one side of the silencer body. A cooling fan on an engine rotates to form negative pressure, external cold air is sucked into the engine from a pull disc, a cylinder cover is cooled and then enters a first heat dissipation channel, centrifugal force generated by high-speed rotation of fan blades of a generator sucks airflow near a first wind scooper and the generator into a second heat dissipation channel, and the airflow is cooled. The air flow in the first heat dissipation channel converges with the air flow in the first heat dissipation channel to dissipate heat of the silencer body, and finally the air flow is discharged from one side of the silencer, so that the heat dissipation effect on the silencer body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of generator sets and relates to an air duct structure of a generator set. Background Art

[0002] The generator uses the engine to operate the generator to generate electricity. When the generator is generating electricity, the engine drives the generator to rotate and generate electricity. The exhaust pipe of the engine is connected to the muffler. The exhaust gas generated by the engine is discharged after passing through the muffler. The temperatures of the engine, generator and muffler are all high, which in turn makes the air temperature around the engine, generator and muffler high.

[0003] At present, most of the cooling air ducts used in generator sets take in air from the inverter, then enter the motor, engine, and muffler, and then discharge from the unit. This structure mainly cools the motor, engine, and muffler from the middle, and has a poor cooling effect on the outside. The overall cooling effect inside the generator set is not ideal, which will affect the overall working efficiency of the generator set. Utility Model Content

[0004] The utility model aims to solve the above problems in the prior art and proposes an air duct structure for a generator set.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a generator set air duct structure, including an engine and a muffler assembly arranged on one side of the engine, the engine including a crankcase, a cylinder head arranged on the crankcase and a generator, the muffler assembly including a muffler shell and a muffler body, the cylinder head is provided with an air guide cover, the muffler shell is provided with a first air inlet cover and a second air inlet cover, a first heat dissipation channel is formed by the gap between the cylinder head and the air guide cover, the first air inlet cover and the gap between the muffler shell and one side of the muffler body, the fan blades of the generator are located in the second air inlet cover, the gap between the fan blades and the first air guide cover and the gap between the muffler shell and one side of the muffler body form a second heat dissipation channel, and the first heat dissipation channel and the second heat dissipation channel are both connected to the muffler shell.

[0006] In the above-mentioned air duct structure of a generator set, the first air inlet cover is sealedly connected to the air guide cover.

[0007] In the above-mentioned air duct structure of a generator set, the muffler housing includes a muffler front cover and a muffler rear cover, and the first air inlet cover and the second air inlet cover are both located on the muffler front cover.

[0008] In the above-mentioned air duct structure of a generator set, an exhaust hole is arranged on the rear cover of the muffler.

[0009] Compared with the prior art, the utility model sets a first heat dissipation channel and a second heat dissipation channel. When the engine is started, the cooling fan on the engine rotates to form a negative pressure, and the external cold air is sucked into the engine from the pull plate, cools the cylinder head and then enters the first heat dissipation channel. The centrifugal force generated by the high-speed rotation of the generator blades sucks the airflow near the first air guide cover and the generator into the second heat dissipation channel, and converges with the airflow in the first heat dissipation channel to dissipate the heat of the muffler body, and is finally discharged from one side of the muffler, thereby improving the heat dissipation effect of the muffler body. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 It is a side view of the utility model;

[0012] Figure 3 It is a cross-sectional view of the utility model.

[0013] In the figure, 1. engine; 11. crankcase; 12. cylinder head; 13. generator; 2. muffler assembly; 21. muffler body; 22. muffler shell; 221. muffler front cover; 222. muffler rear cover; 3. air guide cover; 4. first air inlet cover; 5. second air inlet cover; 6. first heat dissipation channel; 7. second heat dissipation channel; 8. exhaust hole. DETAILED DESCRIPTION

[0014] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. Example

[0015] like Figure 1 and Figure 3 As shown, a generator set air duct structure includes an engine 1 and a muffler assembly 2 arranged on one side of the engine 1, wherein the engine 1 includes a crankcase 11, a cylinder head 12 arranged on the crankcase 11, and a generator 13, the muffler assembly 2 includes a muffler shell 22 and a muffler body 21, the muffler shell 22 includes a muffler front cover 221 and a muffler rear cover 222, and the first air inlet cover 4 and the second air inlet cover 5 are both located on the muffler front cover 221.

[0016] The cylinder head 12 is provided with an air guide cover 3, and the muffler housing 22 is provided with a first air inlet cover 4 and a second air inlet cover 5. The first air inlet cover 4 is sealedly connected to the air guide cover 3, so that the cold air can enter the first heat dissipation channel 6 after dissipating the heat of the cylinder head 12, thereby increasing the flow rate in the first heat dissipation channel 6 and enhancing the heat dissipation effect.

[0017] A first heat dissipation channel 6 is formed by the gap between the cylinder head 12 and the air guide cover 3, the first air inlet cover 4, and the gap between the muffler shell 22 and one side of the muffler body 21. The fan blades of the generator 13 are located in the second air inlet cover 5. The gap between the fan blades and the first air guide cover 3 and the gap between the muffler shell 22 and one side of the muffler body 21 form a second heat dissipation channel 7. The first heat dissipation channel 6 and the second heat dissipation channel 7 are both connected to the muffler shell 22.

[0018] The muffler rear cover 222 is provided with an exhaust hole 8 for exhausting the airflow gathered in the muffler housing 22 .

[0019] This application document is actually applied to the generator set 13. When the engine 1 is started, the interior of the generator set is a relatively closed environment. The cooling fan on the engine 1 rotates to form a negative pressure, forming a negative pressure environment inside the unit. The external cold air is sucked into the unit from the pull plate, cools the cylinder head 12, and then enters the first heat dissipation channel 6. The centrifugal force generated by the high-speed rotation of the fan blades of the generator 13 sucks the airflow near the first air guide cover 3 and the generator 13 into the second heat dissipation channel 7, and converges with the airflow in the first heat dissipation channel 6 to dissipate the heat of the muffler body 21, and finally is discharged from one side of the muffler, thereby improving the heat dissipation effect of the muffler body 21.

[0020] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A generator set air duct structure, comprising an engine (1) and a muffler assembly (2) arranged on one side of the engine (1), wherein the engine (1) comprises a crankcase (11), a cylinder head (12) arranged on the crankcase (11), and a generator (13), characterized in that: The muffler assembly (2) comprises a muffler shell (22) and a muffler body (21); an air guide cover (3) is arranged on the cylinder head (12); a first air inlet cover (4) and a second air inlet cover (5) are arranged on the muffler shell (22); a first heat dissipation channel (6) is formed between the gap between the cylinder head (12) and the air guide cover (3), the first air inlet cover (4) and the gap between the muffler shell (22) and one side of the muffler body (21); the fan blades of the generator (13) are located in the second air inlet cover (5); the gap between the fan blades and the first air guide cover (3) and the gap between the muffler shell (22) and one side of the muffler body (21) form a second heat dissipation channel (7); and the first heat dissipation channel (6) and the second heat dissipation channel (7) are both connected to the muffler shell (22).

2. The air duct structure of a generator set according to claim 1, characterized in that: The first air inlet cover (4) is sealedly connected to the air guide cover (3).

3. The air duct structure of a generator set according to claim 1, characterized in that: The muffler housing (22) comprises a muffler front cover (221) and a muffler rear cover (222), and the first air inlet cover (4) and the second air inlet cover (5) are both located on the muffler front cover (221).

4. The air duct structure of a generator set according to claim 3, characterized in that: The muffler rear cover (222) is provided with an exhaust hole (8).

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