CN218717093U - Air exhaust structure of generator and generator - Google Patents

Abstract

The utility model provides an exhaust structure of generator, including power main part, connecting plate, the cover body, silencer, first impeller and second impeller. According to the air exhaust structure of the generator, the first impeller and the second impeller are designed, and the first impeller can introduce cooling air flow into the power main body, so that the purpose of cooling the power main body is achieved, and the output power of the power main body in a high-temperature environment is improved. Meanwhile, the negative pressure generated by the second impeller can lead the external cooling airflow into the second accommodating cavity, so that the aim of cooling the muffler is fulfilled. The utility model also provides a generator, through the exhaust structure who uses above-mentioned generator, promoted the cooling effect to power main part and silencer, also improved the dynamic property and the economic nature of this generator.

Description

Air exhaust structure of generator and generator

Technical Field

The utility model relates to a generator technical field, concretely relates to exhaust structure and generator of generator.

Background

Exhaust noise is one of the most significant noise sources for an engine, and to reduce noise during operation of the engine, a muffler is typically provided on the engine. The existing muffler cooling system is usually used in cooperation with a cooling system of a generator set, and cooling airflow cools a muffler after cooling a motor and an engine.

Although the structure can realize the cooling purpose of the muffler, the whole operation temperature of the muffler is higher, the self temperature of cooling air flow for the motor and the engine is higher when the cooling air flow blows to the muffler, the cooling purpose of the muffler cannot be met, and the cooling effect of the muffler is poorer.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing an air exhausting structure and generator of generator to the realization carries out abundant effectual cooling to power main part and silencer.

In order to achieve the above object, the present invention provides an exhaust structure of a generator, which includes a power main body, which is provided with a first air inlet hole; the connecting plate is arranged on one side of the power main body, a first accommodating cavity is formed between the connecting plate and the power main body, the first accommodating cavity is communicated with the first air inlet hole, and a second air inlet hole is formed in the connecting plate; the cover body is covered on the connecting plate, a second accommodating cavity is formed between the cover body and the connecting plate, the second accommodating cavity is communicated with the first accommodating cavity through a second air inlet hole, and a first air outlet hole and an exhaust hole are formed in the cover body; a muffler disposed within the second receiving chamber; the first impeller is arranged on one side, away from the connecting plate, of the power main body; and the second impeller is arranged in the first accommodating cavity and close to the first connecting hole, and the second impeller is used for sucking outside cooling airflow into the second accommodating cavity.

Preferably, the power main part is provided with the second exhaust vent, the connecting plate is provided with the third inlet port, the third inlet port respectively with the second exhaust vent with the second holds the chamber intercommunication, the intake pipe of silencer pass in proper order the third inlet port with behind the second exhaust vent with the power main part is connected.

Preferably, the connecting plate comprises a first plate body and a box body, the second air inlet hole is formed in the first plate body, and an abdicating notch is formed in the first plate body; the box body sets up in the breach of stepping down, the box body orientation power main part side is sunken to be formed with the third and holds the chamber, the third inlet port is seted up the third holds the intracavity.

Preferably, the box body comprises a second plate body and a connecting piece, the second plate body is of a step-shaped structure, the second plate body comprises a first connecting edge, a second connecting edge and a third connecting edge, the first connecting edge is connected with the first plate body, the second connecting edge is arranged at the edge of the first connecting edge and extends towards the power main body, the third connecting edge is connected with the second connecting edge, and a third air inlet is formed in the third connecting edge; the connecting piece sets up the edge is connected to the second, the connecting piece is L type structure, the connecting piece the second connect the limit with the third is connected the limit and is enclosed formation the third and hold the chamber.

Preferably, the first plate body is provided with a plurality of reinforcing ribs.

Preferably, one side of the first plate body, which faces away from the second impeller, is provided with a mounting frame, and the muffler is arranged on the mounting frame.

Preferably, a fourth accommodating cavity is arranged in the power main body, and the first impeller is arranged in the fourth accommodating cavity; a fourth air inlet hole is formed in the connecting plate and communicated with the first accommodating cavity; the bottom cover is covered at the bottom of the power main body, a connecting air channel is formed between the bottom cover and the power main body, and the connecting air channel is communicated with the fourth accommodating cavity and the fourth air inlet hole respectively.

The utility model also provides a generator, including the exhaust structure of foretell generator.

The utility model has the advantages that:

the utility model discloses an exhaust structure and generator of generator, it is through designing first impeller and second impeller, and first impeller can introduce the cooling air current in the power main part to reach the refrigerated purpose of power main part, improved the output of power main part under high temperature environment. Meanwhile, the negative pressure generated by the second impeller can lead the external cooling airflow into the second accommodating cavity, so that the aim of cooling the muffler is fulfilled.

Under the combined action of the two stages of impellers, the power main body and the silencer can be fully and effectively cooled, and the temperature of the power main body and the temperature of the silencer are effectively reduced, so that the power performance and the economical efficiency of the whole machine operation are improved.

The utility model also discloses a generator, through the exhaust structure who uses above-mentioned generator, promoted the cooling effect to power main part and silencer, also improved the dynamic property and the economic nature of this generator.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of an air exhaust structure of a generator according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another view angle;

FIG. 3 is a schematic structural view of the bottom of the power body;

FIG. 4 is a schematic cross-sectional view of the air exhaust structure of the generator;

fig. 5 is a schematic structural view of the first accommodation chamber (hiding the connection plate, the cover body and the muffler);

FIG. 6 is a schematic structural view of a connecting plate near one side of the power body;

FIG. 7 is a schematic view of the structure of the connection plate engaged with the cover;

FIG. 8 is a schematic structural view of a connecting plate;

FIG. 9 is a schematic structural view of the mounting bracket;

FIG. 10 is an exploded view of the connection plate;

reference numerals:

10-a power body, 11-a first air inlet hole, 12-a first impeller, 13-a second impeller, 14-a second air outlet hole, and 15-a fourth accommodating cavity;

20-connecting plate, 21-second air inlet hole, 22-third air inlet hole, 23-first plate body, 231-abdicating notch, 24-second plate body, 241-first connecting edge, 242-second connecting edge, 243-third connecting edge, 25-connecting piece, 26-reinforcing rib and 27-fourth air inlet hole;

31-a first accommodating cavity, 32-a second accommodating cavity, 33-a third accommodating cavity and 34-a connecting air channel;

40-cover body, 41-first air outlet and 42-air outlet;

50-a muffler;

60-a mounting frame;

70-bottom cover.

Detailed Description

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

As shown in fig. 1 to 10, in an embodiment of the present invention, an exhaust structure of a generator is provided, which includes a power main body 10, a connecting plate 20, a cover 40, a muffler 50, a first impeller 12, and a second impeller 13.

The power main body 10 comprises a motor and an engine, a first air inlet hole 11 is formed in a cylinder body of the engine, the connecting plate 20 is arranged on one side of the power main body 10 and is provided with a first accommodating cavity 31 between the connecting plate and the power main body 10, the first accommodating cavity 31 is communicated with the first air inlet hole 11, and a second air inlet hole 21 is formed in the connecting plate 20. The cover body 40 covers on the connecting plate 20, is formed with the second between the cover body 40 and the connecting plate 20 and holds the chamber 32, and the second holds the chamber 32 and holds the chamber 31 with first and communicate through second fresh air inlet 21, has seted up first exhaust vent 41 and exhaust hole 42 on the cover body 40.

The muffler 50 is disposed in the second receiving chamber 32, and an exhaust pipe of the muffler 50 passes through the exhaust hole 42. The first impeller 12 is arranged on the side of the power body 10 away from the connecting plate 20, and the first impeller 12 is connected with the rotor of the motor. The second impeller 13 is disposed in the first accommodating chamber 31 and close to the first connection hole, the second impeller 13 is connected to a crankshaft of the engine, and the second impeller 13 is used for introducing an external cooling airflow into the second accommodating chamber 32.

When the power main body 10 works, the first impeller 12 and the second impeller 13 are driven to rotate, negative pressure is formed in the power main body 10 when the first impeller 12 rotates, and external cooling air flow is sucked into the power main body 10 under the action of the negative pressure, so that a motor and an engine of the power main body 10 can be cooled. When the second impeller 13 rotates along with the crankshaft, a strong suction force is generated in the first accommodating cavity 31, so that the airflow near the first air inlet hole 11 is accelerated to flow towards the first accommodating cavity 31, therefore, the external cooling airflow can rapidly flow to the second accommodating cavity 32 through the second air inlet hole 21 under the action of the suction force of the second impeller 13, the cooling airflow can blow towards the muffler 50 with the highest temperature after entering the second accommodating cavity 32, and finally is discharged from the first air outlet hole 41 after taking away the heat of the muffler 50, so that the purpose of cooling the muffler 50 is achieved, and as the cooling airflow entering the second accommodating cavity 32 is directly sucked from the outside, the cooling effect of the muffler 50 is better.

In the exhaust structure of the generator disclosed in this embodiment, by designing the first impeller 12 and the second impeller 13, the first impeller 12 can introduce the cooling airflow into the power main body 10, so as to achieve the purpose of cooling the power main body 10, and improve the output power of the power main body 10 in a high-temperature environment. Meanwhile, the negative pressure generated by the second impeller 13 will introduce the external cooling air flow into the second accommodating chamber 32, thereby achieving the purpose of cooling the muffler 50.

Under the combined action of the two stages of impellers, the power main body 10 and the silencer 50 can be fully and effectively cooled, the temperature of the power main body 10 and the temperature of the silencer 50 are effectively reduced, and therefore the power performance and the economical efficiency of the whole machine operation are improved.

In one embodiment, the power body 10 is provided with a second air outlet 14, the connecting plate 20 is provided with a third air inlet 22, the third air inlet 22 is respectively communicated with the second air outlet 14 and the second accommodating cavity 32, and an air inlet pipe of the muffler 50 is connected with the power body 10 after sequentially passing through the third air inlet 22 and the second air outlet 14.

Outside cooling air flow inhales power main body 10 inside back under the effect of first impeller 12, can cool off power main body 10's motor and engine, and this strand of cooling air flow can blow to the second through second exhaust vent 14 and third inlet vent 22 and hold the chamber 32 in to can cool off muffler 50, so, improved the utilization ratio to cooling air flow, also promoted the cooling effect to power main body 10 and muffler 50.

In one embodiment, the connection plate 20 includes a first plate 23 and a box, the second air inlet hole 21 is disposed on the first plate 23, and the first plate 23 is provided with a relief notch 231. The box body sets up in the breach 231 of stepping down, and the box body is sunken to be formed with the third towards power main part 10 side and holds the chamber 33, and third inlet port 22 is seted up in the third holds the chamber 33.

The box body includes second plate body 24 and connecting piece 25, and second plate body 24 is step-like structure, and second plate body 24 includes first connection limit 241, second connection limit 242 and third connection limit 243, and first connection limit 241 is connected with first plate body 23, and second connection limit 242 sets up the edge at first connection limit 241 and extends towards power main body 10 side, and third connection limit 243 is connected with second connection limit 242, and third inlet opening 22 is seted up on third connection limit 243. The connecting piece 25 is arranged on the second connecting edge 242, the connecting piece 25 is of an L-shaped structure, and the connecting piece 25, the second connecting edge 242 and the third connecting edge 243 surround to form a third accommodating cavity 33.

Through designing the connecting plate 20 into a split structure, the connecting plate 20 is assembled by the first plate body 23, the second plate body 24 and the connecting piece 25, so that the forming difficulty of the connecting plate 20 is reduced, the connecting piece 25 is convenient to disassemble and assemble, and the aim of overhauling the air inlet pipe of the silencer 50 is fulfilled.

In one embodiment, in order to improve the overall structural strength of the first plate body 23, the first plate body 23 is provided with a plurality of reinforcing ribs 26.

In one embodiment, to facilitate mounting and fixing the muffler 50, a mounting bracket 60 is disposed on a side of the first plate 23 facing away from the second impeller 13, and the muffler 50 is disposed on the mounting bracket 60.

In one embodiment, a fourth accommodating chamber 15 is provided in the power body 10, and the first impeller 12 is provided in the fourth accommodating chamber 15. A fourth air inlet hole 27 is formed in the connecting plate 20, and the fourth air inlet hole 27 is communicated with the first accommodating cavity 31. The bottom cover covers the bottom of the power main body 10, a connecting air duct is formed between the bottom cover and the power main body 10, and the connecting air duct is respectively communicated with the fourth accommodating cavity 15 and the fourth air inlet 27.

When the second impeller 13 rotates along with the crankshaft, a strong suction force is generated, the cooling air flow entering the fourth containing cavity 15 directly flows to the connecting air duct, and cools the engine cylinder body while flowing through the connecting air duct, and then flows into the second containing cavity 32 from the second air inlet hole 21, because the second air inlet hole 21 is close to the bottom of the muffler 50, the cooling air flow blows to the bottom of the muffler 50, and under the common cooperation of the first air inlet holes 11, the cooling effect on the muffler 50 is improved.

Example two

In another embodiment of the present invention, a generator is provided, which includes the air exhaust structure of the generator in the first embodiment, and the cooling effect on the power main body 10 and the muffler 50 is improved by using the air exhaust structure of the generator, so as to improve the power performance and the economical efficiency of the generator.

In the description of the present invention, a number of specific details are described. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (8)

1. An air exhaust structure of a generator is characterized in that: the method comprises the following steps:

the power body is provided with a first air inlet hole;

the connecting plate is arranged on one side of the power main body, a first accommodating cavity is formed between the connecting plate and the power main body, the first accommodating cavity is communicated with the first air inlet hole, and a second air inlet hole is formed in the connecting plate;

the cover body is covered on the connecting plate, a second accommodating cavity is formed between the cover body and the connecting plate, the second accommodating cavity is communicated with the first accommodating cavity through a second air inlet hole, and a first air outlet hole and an exhaust hole are formed in the cover body;

a muffler disposed within the second receiving chamber;

the first impeller is arranged on one side, away from the connecting plate, of the power main body; and

and the second impeller is arranged in the first accommodating cavity and close to the first connecting hole, and the second impeller is used for sucking the outside cooling airflow into the second accommodating cavity.

2. The exhaust structure of the generator according to claim 1, wherein: the power main part is provided with the second exhaust vent, the connecting plate is provided with the third inlet port, the third inlet port respectively with the second exhaust vent with the second holds the chamber intercommunication, the intake pipe of silencer passes in proper order the third inlet port with behind the second exhaust vent with the power main part is connected.

3. The exhaust structure of the generator according to claim 2, wherein: the connecting plate comprises a first plate body and a box body, the second air inlet hole is formed in the first plate body, and a abdicating notch is formed in the first plate body;

the box body sets up in the breach of stepping down, the box body orientation power main part side is sunken to be formed with the third and holds the chamber, the third inlet port is seted up the third holds the intracavity.

4. The exhaust structure of the generator according to claim 3, wherein: the box body comprises a second plate body and a connecting piece, the second plate body is of a step-shaped structure and comprises a first connecting edge, a second connecting edge and a third connecting edge, the first connecting edge is connected with the first plate body, the second connecting edge is arranged at the edge of the first connecting edge and extends towards the power main body, the third connecting edge is connected with the second connecting edge, and a third air inlet hole is formed in the third connecting edge;

the connecting piece sets up the edge is connected to the second, the connecting piece is L type structure, the connecting piece the second connect the limit with the third is connected the limit and is enclosed formation the third and hold the chamber.

5. An air exhaust structure of a generator in accordance with claim 3, wherein: the first plate body is provided with a plurality of reinforcing ribs.

6. The exhaust structure of the generator according to claim 3, wherein: one side of the first plate body, which deviates from the second impeller, is provided with a mounting frame, and the silencer is arranged on the mounting frame.

7. The exhaust structure of the generator according to claim 1, wherein: a fourth accommodating cavity is formed in the power main body, and the first impeller is arranged in the fourth accommodating cavity; a fourth air inlet hole is formed in the connecting plate and communicated with the first accommodating cavity;

the bottom cover is covered at the bottom of the power main body, a connecting air channel is formed between the bottom cover and the power main body, and the connecting air channel is communicated with the fourth accommodating cavity and the fourth air inlet hole respectively.

8. An electrical generator, characterized by: an exhaust structure comprising the generator of any one of claims 1-7.

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