CN210948895U - Air-cooled air inlet duct of variable frequency generator - Google Patents
Air-cooled air inlet duct of variable frequency generator Download PDFInfo
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- CN210948895U CN210948895U CN201922151403.7U CN201922151403U CN210948895U CN 210948895 U CN210948895 U CN 210948895U CN 201922151403 U CN201922151403 U CN 201922151403U CN 210948895 U CN210948895 U CN 210948895U
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- frequency generator
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Abstract
The utility model belongs to the technical field of variable frequency generator, refer in particular to a variable frequency generator's forced air cooling air inlet duct, including the case casing, be provided with engine and dc-to-ac converter in the case casing, the bent axle one end of engine is fixed with cooling fan, be provided with empty filter on the air inlet of engine, the dc-to-ac converter sets up the front side at cooling fan, lie in on the case casing of dc-to-ac converter front side along transversely having seted up horizontal air intake, and along the vertical air intake of having seted up, the position of horizontal air intake is corresponding with the position of the lower part of dc-to-ac converter, the. The utility model discloses to wind channel structure and rationally optimized overall arrangement, the air current directly blows to the lower part of dc-to-ac converter through horizontal air intake, and when taking away the lower part heat of dc-to-ac converter, most air current is heated and flows along the dc-to-ac converter rebound, further takes away the upper portion heat of dc-to-ac converter to can carry out effectual forced air cooling to the dc-to-ac converter, its cooling effect is better.
Description
The technical field is as follows:
the utility model belongs to the technical field of variable frequency generator, refer in particular to a variable frequency generator's forced air cooling air inlet duct.
Background art:
the digital variable frequency generator has the advantages of low noise, small volume, stable output, high generating efficiency and the like, and therefore, variable frequency generator products with various forms are greatly promoted in the market. However, compared with the traditional generator, the frequency conversion generator has more inverters and other electric device modules, if the temperature of the inverter is too high, the normal operation of the whole generator can be directly influenced, and meanwhile, the internal heat dissipation of the frequency conversion generator becomes the first difficult problem of a product developer due to the characteristics of small volume and high output.
At present, a forced air cooling mode is generally adopted in a digital variable frequency generator, namely, a cooling fan is fixed at one end of a crankshaft of an engine, an inverter is placed at the front side of the cooling fan, and airflow flows between the inside of a generator case and the outside through the cooling fan so as to cool an engine air inlet, the inverter and other electric device modules. However, the current variable frequency generator has an unreasonable air duct structure and layout, which causes the airflow to be disorderly flowing in the generator case, and the heat emitted by the inverter cannot be effectively taken away, so the air cooling effect is poor, and the performance and the service life of the whole generator are seriously affected.
The invention content is as follows:
the utility model aims at providing a to wind channel structure and rationally optimized of overall arrangement, effectively take away the heat that the dc-to-ac converter gived off and the better variable frequency generator's of forced air cooling effect forced air cooling inlet duct.
The utility model discloses a realize like this:
the utility model provides a frequency conversion generator's forced air cooling air inlet duct, includes the case casing, is provided with engine and dc-to-ac converter in the case casing, and the bent axle one end of engine is fixed with cooling fan, is provided with empty filter on the inlet end of engine, and the dc-to-ac converter sets up the front side at cooling fan, is located horizontal air intake has been seted up along transversely on the case casing of dc-to-ac converter front side and vertical air intake has been seted up along vertical, and the position of horizontal air intake is corresponding with the position of the lower part of dc-to-ac converter, and the position of vertical air.
In the air-cooled air inlet duct of the variable frequency generator, an air inlet groove is formed in the outer side wall of the housing of the case, and the transverse air inlet and the vertical air inlet are formed in the air inlet groove.
In the air-cooled air inlet duct of the variable frequency generator, the air filter is positioned at the rear side of the left side part or the right side part of the inverter, and the left end or the right end of the transverse air inlet is spliced with the lower end of the vertical air inlet.
In the air-cooled air inlet duct of the variable frequency generator, a plurality of vertical reinforcing ribs which are vertically distributed are arranged in the air inlet groove at equal intervals along the transverse direction.
In the air-cooled air inlet duct of the variable frequency generator, a plurality of transverse reinforcing ribs which are distributed transversely are arranged in the air inlet groove at equal intervals along the width direction of the air inlet groove.
In the air-cooled air inlet duct of the variable frequency generator, the transverse reinforcing ribs are obliquely arranged, and the height of the front side edge of the transverse reinforcing ribs is lower than that of the rear side edge of the transverse reinforcing ribs.
In the above-mentioned forced air cooling air inlet duct of a variable frequency generator, the housing of the chassis is including the inclined plane that upper portion leaned forward the setting, horizontal air intake and vertical air intake all set up on the inclined plane.
In the air-cooled air inlet duct of the variable frequency generator, the included angle between the inclined plane and the horizontal plane is 70-80 degrees.
In the air-cooled air inlet duct of the variable frequency generator, the length of the transverse air inlet is 130mm-150mm, and the height of the transverse air inlet is 35mm-45 mm.
In the air-cooled air inlet duct of the variable frequency generator, the width of the vertical air inlet is 13mm-23mm, and the height of the vertical air inlet is 90mm-110 mm.
Compared with the prior art, the utility model outstanding advantage is:
1. the utility model discloses to wind channel structure and rationally optimization of overall arrangement, set up the lower part front side at the dc-to-ac converter with horizontal air intake, in the process of carrying out forced air cooling, the air current directly blows to the lower part of dc-to-ac converter through horizontal air intake, and while taking away the lower part heat of dc-to-ac converter, most air current is heated and flows upwards along the dc-to-ac converter, further takes away the upper portion heat of dc-to-ac converter to can carry out effectual air-cooled cooling to the dc-to-ac converter, its cooling;
2. the utility model discloses vertical air intake is corresponding with empty filter position, can effectively increase the air admission volume of empty filter to ensure that the engine can normally work.
Description of the drawings:
FIG. 1 is an exploded view of the housing shell of the present invention;
FIG. 2 is a front view of the whole machine of the present invention;
FIG. 3 is a schematic view of the flow direction of the air stream of the present invention;
fig. 4 is a cross-sectional view of the vertical air intake of the present invention.
In the figure, the air filter comprises a machine box shell 1, an engine 2, an inverter 3, an air filter 4, a transverse air inlet 5, a vertical air inlet 6, a vertical reinforcing rib 7, a horizontal reinforcing rib 8, an inclined surface 9, β, an included angle between the inclined surface and a horizontal plane, L, the length of the transverse air inlet, H1, the height of the transverse air inlet, D, the width of the vertical air inlet and H2, wherein the height of the vertical air inlet is equal to the height of the horizontal air inlet.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 4:
the utility model provides a frequency conversion generator's forced air cooling air inlet duct, includes organic case casing 1, is provided with engine 2 and inverter 3 in the case casing 1, and the bent axle one end of engine 2 is fixed with cooling fan, is provided with empty filter 4 on the inlet end of engine 2, and inverter 3 sets up the front side at cooling fan, is located horizontal air intake 5 has been seted up along transversely on the case casing 1 of inverter 3 front side and vertical air intake 6 has been seted up along vertical, and the position of horizontal air intake 5 is corresponding with the position of the lower part of inverter 3, and the position of vertical air intake 6 is corresponding with the position of empty filter 4.
The utility model discloses set up horizontal air intake 5 in the lower part front side of dc-to-ac converter 3, in the process of carrying out forced air cooling, the air current blows to the lower part of dc-to-ac converter 3 directly through horizontal air intake 5, and while taking away the lower part heat of dc-to-ac converter 3, most air current is heated and flows upwards along dc-to-ac converter 3, further takes away the upper portion heat of dc-to-ac converter 3, thereby can carry out effectual air-cooled cooling to dc-to-ac converter 3, its cooling effect is better; meanwhile, the vertical air inlet 6 corresponds to the position of the air filter 4, so that the air inlet amount of the air filter 4 can be effectively increased, and the normal work of the engine 2 can be ensured.
Furthermore, the arrangement positions of the transverse air inlet 5 and the vertical air inlet 6 are reasonably planned, an air inlet groove is formed in the outer side wall of the case shell 1, and the transverse air inlet 5 and the vertical air inlet 6 are arranged in the air inlet groove.
The specific installation positions of the air filter 4 are as follows, considering the space efficiency in the cabinet housing 1: the air filter 4 is positioned at the rear side of the left side part or the right side part of the inverter 3, and the left end or the right end of the transverse air inlet 5 is spliced with the lower end of the vertical air inlet 6. In the present embodiment, the air filter 4 is located at the rear side of the right side of the inverter 3, and correspondingly, the right end of the horizontal air inlet 5 is spliced with the lower end of the vertical air inlet 6.
In order to enhance the structural strength of the transverse air inlet 5 and the vertical air inlet 6, a plurality of vertical reinforcing ribs 7 which are vertically distributed are arranged in the air inlet groove at equal intervals in the transverse direction.
And in order to further enhance the structural strength of the transverse air inlet 5 and the vertical air inlet 6, a plurality of transverse reinforcing ribs 8 which are distributed transversely are arranged in the air inlet groove at equal intervals along the width direction.
Meanwhile, in order to avoid external rainwater from entering the case shell 1 from the transverse air inlet 5 or the vertical air inlet 6, the transverse reinforcing ribs 8 are obliquely arranged, and the height of the front side edge of each transverse reinforcing rib is lower than that of the rear side edge of each transverse reinforcing rib. The 8 slopes of horizontal strengthening rib form a louver structure promptly to play the effect of rainwater, improve the utility model discloses a security performance.
Besides, in order to increase the air intake of the transverse air inlet 5 and the vertical air inlet 6, so that the air cooling effect can be further improved, and the air intake of the air filter 4 can be increased to improve the working performance of the engine 2, the chassis housing 1 includes an inclined surface 9 with an upper portion inclined forward, and the transverse air inlet 5 and the vertical air inlet 6 are both arranged on the inclined surface 9. Namely, in a limited height range, the air inlet areas of the transverse air inlet 5 and the vertical air inlet 6 are increased by the inclined surface 9, so that the aim of increasing the air inlet amount is fulfilled.
Still further, the angle β between the inclined surface and the horizontal plane is 70-80 in this embodiment, the angle β between the inclined surface and the horizontal plane is 75.
Furthermore, the length L of the transverse air inlet is 130mm-150mm, and the height H1 of the transverse air inlet is 35mm-45 mm. In this embodiment, the length L of the transverse air inlet is 140mm, and the height H1 of the transverse air inlet is 40 mm.
Furthermore, the width D of the vertical air inlet is 13mm-23mm, and the height H2 of the vertical air inlet is 90mm-110 mm. In the present embodiment, the width D of the vertical air inlet is 18mm, and the height H2 of the vertical air inlet is 100 mm.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides a frequency conversion generator's forced air cooling air inlet duct, includes organic case casing (1), is provided with engine (2) and inverter (3) in the case casing (1), and the bent axle one end of engine (2) is fixed with cooling fan, is provided with air cleaner (4) on the inlet end of engine (2), and inverter (3) set up the front side at cooling fan, its characterized in that: the air filter is characterized in that a transverse air inlet (5) is transversely formed in the machine case shell (1) on the front side of the inverter (3), a vertical air inlet (6) is vertically formed in the machine case shell, the position of the transverse air inlet (5) corresponds to the position of the lower portion of the inverter (3), and the position of the vertical air inlet (6) corresponds to the position of the air filter (4).
2. The air-cooled air inlet duct of the variable frequency generator as claimed in claim 1, wherein: an air inlet groove is formed in the outer side wall of the case shell (1), and the transverse air inlet (5) and the vertical air inlet (6) are formed in the air inlet groove.
3. The air-cooled air inlet duct of the variable frequency generator as claimed in claim 1 or 2, wherein: the air filter (4) is positioned on the rear side of the left side portion or the right side portion of the inverter (3), and the left end or the right end of the transverse air inlet (5) is spliced with the lower end of the vertical air inlet (6).
4. The air-cooled air inlet duct of the variable frequency generator as claimed in claim 2, wherein: a plurality of vertical reinforcing ribs (7) which are vertically distributed are arranged in the air inlet groove at equal intervals along the transverse direction.
5. The air-cooled air inlet duct of the variable frequency generator as claimed in claim 2 or 4, wherein: a plurality of transverse reinforcing ribs (8) which are distributed transversely are arranged in the air inlet groove at equal intervals along the width direction of the air inlet groove.
6. The air-cooled air inlet duct of the variable frequency generator as claimed in claim 5, wherein: the transverse reinforcing ribs (8) are obliquely arranged, and the height of the front side edge of the transverse reinforcing ribs is lower than that of the rear side edge of the transverse reinforcing ribs.
7. The air-cooled air inlet duct of the variable frequency generator as claimed in claim 1, wherein: the air conditioner case shell (1) is including upper portion slope inclined plane (9) that incline the setting forward, horizontal air intake (5) all set up on inclined plane (9) with vertical air intake (6).
8. The air-cooled air inlet duct of the variable frequency generator as claimed in claim 7, wherein an included angle (β) between the inclined surface and a horizontal plane is 70-80 °.
9. The air-cooled air inlet duct of the variable frequency generator as claimed in claim 1, wherein: the length (L) of the transverse air inlet is 130mm-150mm, and the height (H1) of the transverse air inlet is 35mm-45 mm.
10. The air-cooled air inlet duct of the variable frequency generator as claimed in claim 1, wherein: the width (D) of the vertical air inlet is 13-23 mm, and the height (H2) of the vertical air inlet is 90-110 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922151403.7U CN210948895U (en) | 2019-12-04 | 2019-12-04 | Air-cooled air inlet duct of variable frequency generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922151403.7U CN210948895U (en) | 2019-12-04 | 2019-12-04 | Air-cooled air inlet duct of variable frequency generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210948895U true CN210948895U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922151403.7U Active CN210948895U (en) | 2019-12-04 | 2019-12-04 | Air-cooled air inlet duct of variable frequency generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210948895U (en) |
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2019
- 2019-12-04 CN CN201922151403.7U patent/CN210948895U/en active Active
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