CN212716898U

CN212716898U - Mute variable-frequency generator set

Info

Publication number: CN212716898U
Application number: CN202021630835.2U
Authority: CN
Inventors: 刘伟; 魏宾; 刘姝凝
Original assignee: Chongqing Kaibao Power Machinery Co ltd
Current assignee: Chongqing Kaibao Power Machinery Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-16
Anticipated expiration: 2030-08-07

Abstract

The utility model relates to a generating set technical field, concretely relates to silence variable frequency generator set, include: the engine comprises a case, an engine, a generator, a silencer, an inverter and an air guide system, wherein the inverter is fixedly installed at one end of the engine, the generator is installed at the output end of the engine and is in transmission connection with the output end of the engine, the silencer is connected with the cylinder head of the engine through an air inlet pipeline and is fixedly installed on the side wall of the engine, the generator, the inverter and the silencer are communicated through the air guide system, and a centrifugal fan used for air extraction is fixedly installed at the end part of the generator. The beneficial effects of the utility model reside in that: the high-temperature air silencer can guarantee a good silencing effect, meanwhile takes away high-temperature hot air in the machine case, reduces the overall temperature of the machine, and improves the performance of the whole machine.

Description

Mute variable-frequency generator set

Technical Field

The utility model relates to a generating set technical field, concretely relates to silence variable frequency generator set.

Background

The generator set is generally widely used as a civil and industrial power supply to meet the power requirements of families, schools, hospitals, construction sites and other occasions. But most of the products on the market are open shelf products at present. Because the engine is directly exposed outside, the noise is strong, and the requirements of a working place with quiet requirements and a working environment at night cannot be met. Therefore, the silent generator set solves the problem, and compared with an open-frame generator set, the silent generator set is additionally provided with a shell on the basis, so that the generator has sound insulation and rainproof functions. The open-frame generator set is closed by the shell, and sound insulation materials are adhered to the inner wall of the shell. Meanwhile, an air inlet and an air outlet are reserved, so that the generator set can suck air and dissipate heat.

In the design process of the silent generator set, the power part of the generator set belongs to an internal combustion engine, therefore, enough air flow is needed to ensure the sufficient combustion of the engine and dissipate a large amount of heat in the running process of the generator set, in order to ensure that the silent generator set can reach the corresponding decibel requirement, the whole generator set is almost sealed in a case, the ventilation and heat dissipation effects of the generator set are poor, the temperature inside the generator set is heated up too fast, and the working performance of the generator set is influenced.

In view of this, a silence variable frequency type generating set is needed urgently, can guarantee good noise elimination effect, takes away the hot air of the higher temperature in the machine case simultaneously, reduces the whole temperature of machinery, promotes complete machine performance.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims to provide a silence variable frequency generator set can guarantee good noise elimination effect, takes away the hot air with higher temperature in the machine case simultaneously, reduces the whole temperature of machinery, promotes the complete machine performance.

In order to realize the above object, the technical scheme of the utility model is that: a silent variable frequency generator set, comprising: the engine comprises a case, an engine, a generator, a silencer, an inverter and an air guide system, wherein the inverter is fixedly installed at one end of the engine, the generator is installed at the output end of the engine and is in transmission connection with the output end of the engine, the silencer is connected with the cylinder head of the engine through an air inlet pipeline and is fixedly installed on the side wall of the engine, the air guide system is used for communicating the engine, the generator, the inverter and an air duct of the silencer, and a centrifugal fan used for exhausting air is fixedly installed at the end part of the generator.

Further, the chassis includes: base, curb plate, top cap, truckle and cushion gum, engine, generator, silencer and dc-to-ac converter pass through the cushion gum with base fixed connection, curb plate and top cap housing are established on the base, truckle fixed mounting is in the base bottom, the air inlet has been seted up on the base.

Further, the engine includes: the air filter is communicated with an air inlet end of the engine body, a controller of the stepping motor is connected with the engine body through a signal, and the starting motor for starting and stopping the engine is installed on one side of the engine body.

Further, a silencer heat insulation chamber is arranged on the outer side of the silencer.

Further, the air guide system includes: the silencer air guide cover comprises an inverter cooling cover, an engine air inlet cover, a centrifugal fan air guide cover and a heat insulation chamber air guide cover, wherein the inverter cooling cover covers the outside of the inverter and is communicated with the engine air inlet cover, the engine air inlet cover is communicated with the air filter and the engine body, the centrifugal fan air guide cover covers the outer side of the centrifugal fan, and the silencer heat insulation chamber is communicated with the generator air guide opening through the heat insulation chamber air guide cover.

Has the advantages that:

the utility model provides a pair of silence variable frequency generator unit communicates engine, generator, silencer, dc-to-ac converter wind channel through air ducting together, and inside and outside air cycle and the circulation of rethread chassis base plate air inlet and centrifugal fan realization machine case. On the basis of the prior art, the heat dissipation effect is increased, the performance of the whole machine is improved, and the power of the generator set is improved. The air outlet of the air guide system is over against the silencer, so that the silencer is cooled while higher hot air in the case is sucked away, the temperature of the case is reduced, and the performance of the whole machine is improved.

Drawings

Fig. 1 is a three-dimensional schematic view of the internal structure of a silent variable frequency generator set of the present invention;

fig. 2 is a three-dimensional schematic view of a case structure of a silent variable frequency generator set of the present invention;

the labels in the figure are: 1-case, 2-engine, 3-generator, 4-silencer, 5-inverter, 6-air guide system, 7-centrifugal fan, 11-base, 12-side plate, 13-top cover, 14-caster, 15-cushion gum, 21-air filter, 22-stepping motor, 23-engine body, 24-starting motor, 41-silencer heat insulation chamber, 51-inverter cooling cover, 52-engine air inlet cover, 53-centrifugal fan air guide cover and 54-heat insulation chamber air guide cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in the figure, the utility model discloses a silence variable frequency generator set, include: the air-conditioning system comprises a case 1, an engine 2, a generator 3, a silencer 4, an inverter 5 and an air guide system 6, wherein the inverter 5 is fixedly installed at one end of the engine 2, the generator 3 is installed at the output end of the engine 2 and is in transmission connection with the output end of the engine 2, the silencer 4 is connected with a cylinder head of the engine 2 through an air inlet pipeline and is fixedly installed on the side wall of the engine 2, the air guide system 6 is used for communicating the engine 2, the generator 3, the inverter 5 and an air duct of the silencer 4, and a centrifugal fan 7 used for air extraction is fixedly installed at the end of the generator 3.

In this embodiment, the chassis 1 includes: base 11, curb plate 12, top cap 13, truckle 14 and cushion gum 15, engine 2, generator 3, silencer 4 and dc-to-ac converter 5 pass through cushion gum 15 with 11 fixed connection of base, curb plate 12 and top cap 13 cover are established on the

base

11, 14 fixed mounting of truckle are in 11 bottoms of base, the air inlet has been seted up on the base 11.

In the present embodiment, the engine 2 includes: the air cleaner 21 is communicated with an air inlet end of the engine body 23, a controller of the stepping motor 22 is in signal connection with the engine body 23, and the starting motor 24 for starting and stopping the engine 2 is installed on one side of the engine body 23.

In this embodiment, a muffler heat insulation chamber 41 is provided outside the muffler 4.

In this embodiment, the air guiding system 6 includes: the silencer heat insulation system comprises an inverter cooling cover 51, an engine air inlet cover 52, a centrifugal fan air guide cover 53 and a heat insulation chamber air guide cover 54, wherein the inverter cooling cover 51 covers the outside of the inverter 5 and is communicated with the engine air inlet cover 52, the engine air inlet cover 52 is communicated with the air filter 21 and the engine 2 body, the centrifugal fan air guide cover 53 covers the outer side of the centrifugal fan 7, and the heat insulation chamber air guide cover 54 is communicated with the silencer heat insulation chamber 41 and the air guide opening of the generator 3.

The working principle is as follows:

during the working process, cold air in the whole case 1 firstly enters the case 1 from an air inlet of a bottom plate of the case 1, a part of cold air enters the engine 2 body after entering the air filter 21, and the air is discharged through the silencer 4 after being combusted in the engine 2; a part of air cools a cylinder head and a crankcase in the engine 2 body, then cools the surface of the muffler 4 through an air guide system 6 and is discharged out of the case 1; in the process that a part of air is extracted into the air in the case 1 through the centrifugal fan 7, the air flows through the generator 3, cools the generator 3, then cools the surface of the muffler 4 through the air guide system 6, and is discharged out of the case 1; a part of the air passes through the centrifugal fan 7 and then directly cools the surface of the muffler 4 and is discharged out of the cabinet 1.

The utility model provides a pair of 3 groups of silence variable frequency generator communicate engine 2, generator 3,

silencer

4, 5 wind channels of dc-to-ac converter together through air ducting 6, and 1 bottom plate air inlet of rethread machine case and centrifugal fan 7 realize the inside and outside air cycle of machine case 1 and circulation. On the basis of the prior art, the heat dissipation effect is increased, the performance of the whole generator is improved, and the power of 3 sets of generators is improved. The air outlet of the air guide system 6 is over against the silencer 4, so that the silencer 4 is cooled while relatively high hot air in the case 1 is sucked away, the temperature of the case 1 is reduced, and the performance of the whole machine is improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A silent variable frequency generator set, comprising: the air-conditioning system comprises a case (1), an engine (2), a generator (3), a silencer (4), an inverter (5) and an air guide system (6), wherein the inverter (5) is fixedly installed at one end of the engine (2), the generator (3) is installed at the output end of the engine (2) and is in transmission connection with the output end of the engine (2), the silencer (4) is connected with the cylinder head of the engine (2) through an air inlet pipeline and is fixedly installed at the side wall of the engine (2), the air-conditioning system is characterized in that the air guide system (6) communicates the engine (2), the generator (3), the inverter (5) and an air duct of the silencer (4), and a centrifugal fan (7) used for air extraction is fixedly installed at the end of the generator (3).

2. A silent variable frequency generator set according to claim 1, wherein the cabinet (1) comprises: base (11), curb plate (12), top cap (13), truckle (14) and cushion gum (15), engine (2), generator (3), silencer (4) and inverter (5) pass through cushion gum (15) with base (11) fixed connection, curb plate (12) and top cap (13) cover are established on base (11), truckle (14) fixed mounting be in base (11) bottom, the air inlet has been seted up on base (11).

3. A silent variable frequency generator set according to claim 2, wherein the engine (2) comprises: air cleaner (21), step motor (22), engine main part (23) and starter motor (24), air cleaner (21) with engine main part (23) inlet end intercommunication, the controller of step motor (22) with engine main part (23) signal connection, starter motor (24) for starting and stopping engine (2) are installed engine main part (23) one side.

4. A silent frequency conversion generator set according to claim 3, wherein a muffler heat insulation chamber (41) is arranged outside the muffler (4).

5. A silent frequency-conversion generator set according to claim 4, wherein the air guiding system (6) comprises: the silencer heat insulation system comprises an inverter cooling cover (51), an engine air inlet cover (52), a centrifugal fan air guide cover (53) and a heat insulation chamber air guide cover (54), wherein the inverter cooling cover (51) is covered outside the inverter (5) and communicated with the engine air inlet cover (52), the engine air inlet cover (52) is communicated with an air filter (21) and an engine (2) body, the centrifugal fan air guide cover (53) is covered outside the centrifugal fan (7), and the heat insulation chamber air guide cover (54) is used for communicating a silencer heat insulation chamber (41) with an air guide opening of a generator (3).