CN217176749U

CN217176749U - Heat radiation structure of engine driven generator

Info

Publication number: CN217176749U
Application number: CN202121567691.5U
Authority: CN
Inventors: 许式省; 陆先高; 刘俊鸿
Original assignee: Qianjiang Group Wenling Zhengfeng Power Co ltd
Current assignee: Qianjiang Group Wenling Zhengfeng Power Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-08-12
Anticipated expiration: 2031-07-08

Abstract

The utility model provides a heat radiation structure of engine drive generator belongs to silence generator unit technical field. The problem of how to further increase the power of the engine of the generator set is solved. This heat radiation structure of engine drive generator, engine mounting are on the bottom plate, and the bottom plate is connected with the dustcoat, has seted up the air intake on the dustcoat, are equipped with the exhaust hood on the engine, are equipped with the air exit on the exhaust hood, set up on the dustcoat with the air exit that the air exit corresponds the setting, generator and exhaust hood intercommunication, the cover is equipped with the draft hood on the generator, is equipped with the vent on the draft hood, is equipped with the exhaust fan in the generator, and the fresh air inlet has still been seted up to one side below that is close to the carburetor on the dustcoat. This scheme has seted up the fresh air inlet below the one side that the dustcoat is close to the engine carburetor on prior art's basis for increase an wind channel more in the box, effectively reduced the temperature of carburetor, improve the petrol atomization effect, thereby increase the power of engine among the generating set.

Description

Heat radiation structure of engine driven generator

Technical Field

The utility model relates to a silence generator unit technical field relates to a heat radiation structure of engine drive generator.

Background

The principle of the mute generator set is that gasoline is combusted through an engine, heat energy is converted into mechanical energy, a rotor of a generator is driven to cut a magnetic field through rotation of the engine, and finally electric energy is generated. The problem of electric power shortage in China is more and more prominent at present, and the requirement of people on environmental protection is higher and higher at the same time. As a standby power supply of a power supply network, a diesel generator set with a sound box is widely used due to the advantage of low noise, and particularly, the diesel generator set is an indispensable emergency device in places with strict requirements on environmental noise, such as hospitals, hotels, large shopping malls and the like. The silent generator set includes a cooling system which functions to dissipate the heat of the high heat components to the atmosphere to ensure the normal operation of the generator set. The existing silent generator set generally has two cooling modes, one is to adopt a water cooling mode to cool, and the generator is cooled by water, so the silent generator set can not be normally used under the condition of water shortage; the other type is cooling by adopting an air cooling mode, but the cooling effect of the existing air cooling mute generator set is not good.

If air-cooled silent generator set (application number: CN201510455580.8) includes that chassis, cover are located the box on the chassis, be equipped with fixed mounting in the box engine, generator and silencer on the chassis, engine and generator bolted connection, be equipped with the exhaust duct between silencer and the generator, the entry end and the box external intercommunication of exhaust duct, the exit end of exhaust duct passes through silencer and the external intercommunication of box, the exhaust duct runs through the box.

In the structure, the exhaust duct is of an independent structure and is blocked from other structures in the generator set, although the exhaust duct penetrates through the whole generator set, the exhaust duct cannot be adjacent to other structures in the generator set, and therefore the structure is poor in heat dissipation effect. Therefore, the problems of overhigh temperature, insufficient power and the like of the carburetor of the engine can be caused, the overhigh temperature of the carburetor can influence the volatilization stability of the gasoline, influence the gasoline atomization effect, reduce the power of the engine and further reduce the power of the whole engine.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a heat radiation structure of engine drive generator, the utility model aims to solve the technical problem that: how to further increase the power of the engine of the generator set.

The purpose of the utility model can be realized by the following technical proposal: the engine is mounted on a bottom plate, the engine is connected with the generator, the bottom plate is connected with an outer cover, an air inlet is formed in the outer cover, an exhaust cover is arranged on the engine, an air outlet is formed in the exhaust cover, an air outlet corresponding to the air outlet is formed in the outer cover, the generator is communicated with the exhaust cover, and a ventilation cover is sleeved on the generator.

In the scheme, the outer cover and the bottom plate form a box body, when the generator generates electricity, the rotating shaft on the engine drives the exhaust fan to rotate, pressure difference is formed between air inside and outside the box body, air outside the box body enters the box body through the air inlet, the air entering the box body is fully contacted with parts inside the box body, heat of parts inside the box body is taken away, and a good heat dissipation effect is achieved; when the exhaust fan rotates, pressure difference is formed between the inside and the outside of the ventilation hood, air in the box body enters the ventilation hood through the ventilation opening and then enters the exhaust hood from the ventilation hood, the air in the exhaust hood is exhausted out of the box body through the air outlet on the outer hood, in the structure, air enters from the air inlet and then is discharged from the air outlet, the air in the box body is fully contacted with each part in the box body, the heat on the surface of a heat-generating part is taken away, the temperature of the part in the box body is effectively reduced, and an air inlet hole is arranged at the lower part of one side close to the carburetor of the engine, so that a new air channel is formed in the box body, air outside the box body enters the box body through the air inlet hole, then the gasoline enters the ventilation hood after passing through the carburetor, so that the temperature of the carburetor is effectively reduced, the volatilization stability of the gasoline in the carburetor is ensured, the gasoline atomization effect is improved, and the power of an engine in a generator set is improved.

In the above heat dissipation structure of the engine-driven generator, the air inlet holes are provided in the housing obliquely with respect to the bottom plate. The air inlet is obliquely arranged on the outer cover and located below the carburetor, the distance between the air inlet and the carburetor is increased, air is in full contact with the carburetor, the cooling effect is improved, air outside the box body obliquely enters the box body, and partial air moves upwards, so that the air is in better contact with the carburetor, the cooling effect is achieved, the volatilization stability of gasoline in the carburetor is ensured, and the power of an engine of the generator set is increased.

In the heat dissipation structure of the engine-driven generator, the number of the air inlet holes is at least one, and the shape of the air inlet hole is oval or polygonal.

In the heat dissipation structure of the engine-driven generator, an air filter is arranged beside the air inlet hole, and the carburetor is connected with the air filter. The air filter effectively filters impurities in air, improves the quality of air entering the carburetor, and ensures continuous and effective work of the carburetor.

In the heat dissipation structure of the engine-driven generator, the engine is provided with the fins near the carburetor. The fins effectively transfer heat of the engine, and the temperature of the engine is reduced.

In the heat dissipation structure of the engine-driven generator, the air inlet and the air outlet are diagonally arranged at two opposite positions of the outer cover. The structure increases the distance of the air channel in the box body, so that the heat dissipation of parts in the box body is more sufficient.

In the above heat dissipation structure of the engine-driven generator, the engine main body has a gap with the bottom plate. The engine main body is provided with a gap on the bottom plate, so that the heat dissipation area of the engine is increased, and the heat dissipation of the engine is more sufficient.

In the above-described heat dissipation structure of the engine-driven generator, the engine and the oil tank are disposed at an interval. The engine and the oil tank are arranged at intervals, so that excessive heat of the engine is prevented from being transmitted to the oil tank, and the safety is improved.

Compared with the prior art, the utility model has the advantages of it is following:

1. this scheme has seted up the fresh air inlet below the one side that the dustcoat is close to engine carburetor on prior art's basis for increase a wind channel in the box more, the air outside the box passes through the fresh air inlet and gets into in the box, in the reentrant draft hood behind the carburetor, has effectively reduced the temperature of carburetor, guarantees the volatile stability of petrol in the carburetor, improves the petrol atomization effect, thereby increases the power of engine among the generating set.

2. Through the arrangement of the diagonal angles of the middle air inlet and the air outlet, the distance of the air channel in the box body is increased, and the heat dissipation of parts in the box body is more sufficient.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a schematic view of the internal structure of the present invention;

fig. 5 is a schematic view of the relative positions of the carburetor and the air inlet opening of the present invention.

In the figure, 1, a bottom plate; 2. a housing; 21. an air inlet; 22. an air outlet; 23. an air inlet hole; 3. an engine; 31. a carburetor; 32. a fin; 33. a rotating shaft; 4. a generator; 41. a stator; 42. a rotor; 5. an exhaust hood; 51. an air outlet; 6. a ventilation hood; 61. a vent; 7. an air cleaner; 8. an oil tank; 9. an exhaust fan.

Detailed Description

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

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a heat dissipation structure of an engine 3 driving a generator 4 includes the engine 3 and the generator 4, a rotating shaft 33 of the engine 3 extends into the generator 4, a rotor 42 in the generator 4 is fixed on the rotating shaft 33, a stator 41 is fixed on a ventilation hood 6, fins 32 are arranged on the engine 3, the fins 32 effectively transfer heat of the engine 3, the temperature of the engine 3 is reduced, the engine 3 is mounted on a bottom plate 1, a gap is formed between a main body of the engine 3 and the bottom plate 1, a heat dissipation area of the engine 3 is increased, and heat dissipation of the engine 3 is more sufficient. The base plate 1 is connected with the dustcoat 2, base plate 1 and dustcoat 2 constitute the box, air intake 21 and air outlet 22 are diagonally to setting up in two relative positions of dustcoat 2, be equipped with exhaust hood 5 on the engine 3, be equipped with air exit 51 on the exhaust hood 5, air exit 51 and air outlet 22 are corresponding, be equipped with exhaust fan 9 in the generator 4, exhaust fan 9 is connected with the pivot 33 of engine 3, the cover is equipped with the draft hood 6 on the generator 4, be equipped with vent 61 on the draft hood 6, oval-shaped inlet opening 23 has still been seted up to one side below that is close to engine 3 carburetor 31 on the dustcoat 2, inlet opening 23 sets up on dustcoat 2 with base plate 1 slope. An air filter is arranged beside the air inlet 23, and a carburetor 31 is connected with the air filter 7. The air filter 7 effectively filters impurities in the air, improves the quality of the air entering the carburetor 31, and ensures that the carburetor 31 continuously and effectively works. Still be provided with oil tank 8 in the box,

oil tank

8 and 3 intervals of engine set up, have avoided 3 heat of engine to transmit 8 departments of oil tank too much, have improved the security. The outer cover 2 is also fixed with a controller which is positioned at the air inlet 21 and is beneficial to the heat dissipation of the controller.

As shown in fig. 2, 3, 4 and 5, when the generator 4 generates electricity, the rotating shaft 33 of the engine 3 drives the exhaust fan 9 to rotate, the air inside and outside the box forms a pressure difference, and then the air outside the box enters the box through the air inlet 21, the air outside the box is in full contact with the parts inside the box to take away the heat on the surface of the parts inside the box, when the exhaust fan 9 rotates, the air inside and outside the ventilation hood 6 forms a pressure difference, the air inside the box enters the ventilation hood 6 through the ventilation opening 61, the air inside the ventilation hood 6 enters the exhaust hood 5, the air inside the exhaust hood 5 is discharged outside the box through the air outlet 22 on the outer cover 2, the air inside the exhaust hood 5 is in contact with the surface of the engine 3 to take away the heat on the surface of the engine 3, and an air inlet 23 is arranged below the side close to the carburetor 31 of the engine 3 to form another air passage inside the box, the air outside the box enters the box through the air inlet 23, after passing through the carburetor 31, the fuel enters the ventilation hood 6, so that the temperature of the carburetor 31 is effectively reduced, the volatilization stability of the gasoline in the carburetor 31 is ensured, the gasoline atomization effect is improved, and the power of the engine 3 in the generator 4 group is improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although 1, the bottom plate is used more herein; 2. a housing; 21. an air inlet; 22. an air outlet; 23. an air inlet hole; 3. an engine; 31. a carburetor; 32. a fin; 4. a generator; 41. a stator; 42. a rotor; 5. an exhaust hood; 51. an air outlet; 6. a ventilation hood; 61. a vent; 7. an air cleaner; 8. an oil tank; 9. exhaust fans, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A heat dissipation structure of an engine-driven generator, wherein an engine (3) is arranged on a bottom plate (1), the engine (3) is connected with the generator (4), the bottom plate (1) is connected with the outer cover (2), an air inlet (21) is arranged on the outer cover (2), an exhaust hood (5) is arranged on the engine (3), an air outlet (51) is arranged on the air exhaust cover (5), an air outlet (22) corresponding to the air outlet (51) is arranged on the outer cover (2), the generator (4) is communicated with the exhaust hood (5), the generator (4) is sleeved with a ventilation hood (6), it is characterized in that a ventilation opening (61) is arranged on the ventilation hood (6), an exhaust fan (9) is arranged in the generator (4), an air inlet hole (23) is also formed in the lower portion of one side, close to the carburetor (31), of the outer cover (2).

2. The heat dissipation structure of an engine-driven generator according to claim 1, wherein the air intake holes (23) are provided on the housing (2) obliquely with respect to the base plate (1).

3. The heat dissipation structure of an engine-driven generator according to claim 1 or 2, wherein the air inlet hole (23) is at least one and the shape of the air inlet hole (23) is an ellipse or a polygon.

4. The heat dissipation structure of an engine-driven generator according to claim 3, wherein an air cleaner (7) is provided beside the air intake hole (23), and the carburetor (31) is connected to the air cleaner (7).

5. The heat dissipation structure of an engine-driven generator according to claim 1 or 4, characterized in that the engine (3) is provided with fins (32) near a carburetor (31).

6. The heat dissipation structure of an engine-driven generator according to claim 5, wherein the air inlet (21) and the air outlet (22) are diagonally provided at two positions opposite to each other on the housing (2).

7. The heat dissipation structure of an engine-driven generator according to claim 6, characterized in that the engine (3) main body has a clearance from the base plate (1).

8. The heat dissipation structure of an engine-driven generator according to claim 7, wherein the engine (3) and the oil tank (8) are provided at a spacing.