CN214482089U - Small-size generator module air ducting - Google Patents

Abstract

The utility model discloses a small-size generator module air ducting, its characterized in that: the air conditioner comprises an air outlet gap arranged at an engine fan cover and a module air guide cover covering the outside of an inverter module, wherein an air inlet area and an air outlet area are respectively arranged on two sides of the module air guide cover, the inverter module is positioned in the air outlet area, and the air inlet area corresponds to the air outlet gap. Specifically, the air outlet notch is located on the engine wind cover and corresponds to the cooling fan. The utility model discloses combine together the cooling structure of the cooling of engine and generating set dc-to-ac converter, make the passive cooling of dc-to-ac converter change initiative cooling into, the cooling effect is better.

Description

Small-size generator module air ducting

Technical Field

The utility model relates to an engine parts technical field, concretely relates to small-size generator module air ducting.

Background

The generator set mainly comprises an engine, a generator and an electric control system, and can convert chemical energy of fuel oil into electric energy. The core electrical component in the inverter generator set is an inverter, and the inverter adopts the frequency conversion technology of a switching power supply to convert the medium-frequency alternating current output by the generator into power-frequency alternating current with stable voltage. When the inverter works, power devices such as a rectifier, an IGBT (insulated gate bipolar transistor), an inductor and the like all generate heat, and because the devices are sensitive to temperature, once the temperature exceeds an allowable value, the inverter can be burnt, so that the whole generator set is completely paralyzed, and the inverter needs to be cooled to work normally. The existing cooling of the inverter adopts a mode of additionally installing a heat dissipation aluminum substrate, and passive heat dissipation is carried out by the aluminum substrate, so that the heat dissipation effect is limited, and the cooling effect is poor.

Disclosure of Invention

An object of the utility model is to overcome prior art not enough, provide a small-size generator module air ducting.

In order to achieve the above object, the present invention provides the following technical solutions:

a module wind guide system of a small generator comprises an air outlet notch arranged at an engine fan cover and a module wind guide cover covering the outside of an inverter module, wherein an air inlet area and an air outlet area are respectively arranged on two sides of the module wind guide cover, the inverter module is positioned in the air outlet area, and the air inlet area corresponds to the air outlet notch. Specifically, the air outlet notch is located on the engine wind cover and corresponds to the cooling fan.

Preferably, flexible sealing is adopted between the air outlet notch and the air inlet area. Specifically, the two are connected by sponge materials.

Preferably, an air induction cover is arranged on the engine air cover corresponding to the periphery of the air outlet notch, and the air induction cover extends into the air inlet area.

Preferably, the module wind scooper comprises a wind scooper body and an air inlet cover which are connected with each other, an air outlet area is formed on the inner side of the wind scooper body, and an air inlet area is formed on the inner side of the air inlet cover.

Preferably, the upper side and the lower side of the wind scooper body are both connected with flanges, and the two sides of the wind scooper body are connected with wind guide pieces.

Preferably, the air guide sheets comprise a first air guide sheet close to the outer side and a second air guide sheet close to the inner side, the length of the first air guide sheet is larger than that of the second air guide sheet, and the gap between the second air guide sheet and the inverter module is larger than the gap between the flange and the inverter module and the gap between the first air guide sheet and the inverter module.

Preferably, an arc transition plate is arranged at the joint of the air inlet cover and the air guide cover body, so that the sectional area of the joint of the air inlet cover and the air guide cover body is increased to form an expansion area.

Compared with the prior art, the beneficial effects of the utility model are that: the engine cooling system and the inverter module cooling system are combined, the inverter module is actively cooled, and compared with the natural air cooling of the inverter module, the cooling effect is better.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a first cross-sectional view of the present invention;

fig. 3 is a second cross-sectional view of the present invention;

fig. 4 is a schematic structural view of a middle module wind scooper according to the present invention;

FIG. 5 is a schematic structural view of an inner air duct of the middle module air guiding cover of the present invention;

fig. 6 is a schematic structural view of a middle module wind scooper according to the present invention;

fig. 7 is a schematic view of the flowing direction of the cooling air in the present invention.

Reference numerals: a module wind scooper 1; an induced draft cover 2; an engine fan housing 3; a cooling fan 4; an air outlet gap 5; an inverter module 6; a wind scooper body 7; flanging 8; an air inlet cover 9; an arc-shaped transition plate 10; a wind guide sheet 11; a first air guiding sheet 111; a second air guiding sheet 112; an air inlet area 12; an expansion region 13; an air outlet area 14; and heat dissipation ribs 15.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-7, a module wind guiding system of a small generator includes an air outlet gap 5 disposed at an engine fan housing 3 and a module wind guiding housing 1 covering outside an inverter module 6, an air inlet region 12 and an air outlet region 14 are respectively disposed at two sides of the module wind guiding housing 1, the inverter module 6 is located in the air outlet region 14, the air inlet region 12 corresponds to the air outlet gap 5, the module wind guiding housing 1 is attached to an aluminum substrate of the inverter module 6 when installed, the air inlet region 12 faces a high heat region of the inverter module 6, cooling air in the engine is blown out from the air outlet gap 5 at the engine fan housing 3, enters the module wind guiding housing 1 along the air inlet region, and cools the inverter module 6 in the module wind guiding housing 1. The cooling of the engine and the cooling of the inverter module 6 are combined, so that the passive cooling of the inverter module 6 is changed into active cooling, and a better cooling effect is obtained.

Specifically, the air outlet gap 5 is located at a position on the engine fan housing 3 corresponding to the cooling fan 4, and the position is located at a high pressure region formed after the cooling fan 4 rotates, so that a large air outlet amount can be achieved when the opening is small. The small opening makes the mould simple, the life-span is long, and the finished product structure rigidity is good, and the cooling effect is good if the amount of wind is big.

Preferably, the air outlet gap 5 and the air inlet area 12 are flexibly connected. Specifically, the two are connected by sponge materials to realize sealing. The rigid connection is easy to damage due to vibration and impact in the transportation and carrying processes, so that the flexible connection is adopted, the cost is low, the assembly process is simple, and the operation and maintenance are easy.

Preferably, the engine fan housing 3 is provided with an induced draft housing 2 corresponding to the periphery of the air outlet gap 5, and the induced draft housing 2 extends into the air inlet area 12, so that the cooling wind energy blown out from the air outlet gap 5 can be intensively introduced into the module wind scooper 1.

Preferably, the module wind scooper 1 comprises a wind scooper body 7 and an air inlet cover 9 which are connected with each other, an air outlet area 14 is formed on the inner side of the wind scooper body 7, and an air inlet area 12 is formed on the inner side of the air inlet cover 9. The upper side and the lower side of the wind scooper body 7 are both connected with flanges 8, and two sides of the wind scooper body 7 are connected with wind guide pieces 11. The structure formed by the wind scooper body 7, the flanging 8 and the wind guide sheet 11 covers the periphery and the inner side face of the inverter module 6.

The air guide sheets 11 comprise a first air guide sheet 111 close to the outer side and a second air guide sheet 112 close to the inner side, the length of the first air guide sheet 111 is larger than that of the second air guide sheet 112, and the gap between the second air guide sheet 112 and the inverter module 6 is larger than that between the flanging 8 and the inverter module 6 and that between the first air guide sheet 111 and the inverter module 6.

The first air guiding sheet 111 near the outer side is longer, so that a decoration effect is achieved, and the appearance is coordinated and attractive as much as possible. The first air guide sheet 111 is tightly attached to the inverter module 6, so that air outlet on the side is reduced, the gap between the second air guide sheet 112 and the inverter module 6 is larger than the gap between the flanging 8 and the gap between the first air guide sheet 111 and the inverter module 6, so that cooling wind energy flows from the air inlet area 12 along the inner side of the heat dissipation rib 15 horizontally arranged on the aluminum substrate of the inverter module 6 and reaches the side of the second air guide sheet 112 from the side of the first air guide sheet 111, so that the cooling wind flows according to an optimal cooling air channel, high-heat parts of the inverter module 6 are fully cooled, and can be cooled more uniformly and fully, and the temperature is reduced. And meanwhile, cooling air flows into the unit to reduce the internal temperature.

The shorter design of the second air guiding sheet 112 can also reduce the flow resistance and save the cost.

Preferably, an arc transition plate 10 is arranged at the joint of the air inlet cover 9 and the air guide cover body 7, so that the sectional area of the joint of the air inlet cover and the air guide cover body is increased to form an expansion area 13.

The air duct in the module wind scooper 1 consists of an air inlet area 12, an expansion area 13 and an air outlet area 14, cooling air enters along the air inlet area 12 at a high speed, then flows at a lower speed along a heat dissipation aluminum substrate of the inverter module 6 after the speed of the cooling air is reduced by the expansion area 13, and the sufficient heat exchange time is ensured.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a small-size generator module air ducting which characterized in that: the air conditioner comprises an air outlet gap (5) arranged at an engine fan cover (3) and a module air guide cover (1) covering the outside of an inverter module (6), wherein an air inlet area (12) and an air outlet area (14) are respectively arranged on two sides of the module air guide cover (1), the inverter module (6) is located in the air outlet area (14), and the air inlet area (12) corresponds to the air outlet gap (5).

2. The small power generator module air guide system as claimed in claim 1, wherein: and a flexible seal is adopted between the air outlet notch (5) and the air inlet area (12).

3. The small power generator module wind guide system according to claim 1 or 2, wherein: an air induction cover (2) is arranged on the periphery of the engine air cover (3) corresponding to the air outlet notch (5), and the air induction cover (2) extends into the air inlet area (12).

4. The small power generator module air guide system as claimed in claim 3, wherein: the module wind scooper (1) comprises a wind scooper body (7) and an air inlet cover (9) which are connected with each other, an air outlet area (14) is formed on the inner side of the wind scooper body (7), and an air inlet area (12) is formed on the inner side of the air inlet cover (9).

5. The small power generator module air guide system as claimed in claim 4, wherein: the upper side and the lower side of the wind scooper body (7) are both connected with turned edges (8), and wind guide pieces (11) are connected to two sides of the wind scooper body (7).

6. The small power generator module air guide system as claimed in claim 5, wherein: the air guide sheets (11) comprise a first air guide sheet (111) close to the outer side and a second air guide sheet (112) close to the inner side, the length of the first air guide sheet (111) is larger than that of the second air guide sheet (112), and the gap between the second air guide sheet (112) and the inverter module (6) is larger than the gap between the flanging (8) and the inverter module (6) and the gap between the first air guide sheet (111) and the inverter module (6).

7. The small power generator module air guide system as claimed in claim 4, wherein: an arc transition plate (10) is arranged at the joint of the air inlet cover (9) and the air guide cover body (7).

Images