CN217721014U - Low-voltage high-power frequency converter - Google Patents

Abstract

The utility model discloses a high-power converter of low pressure, including the casing, from left to right be equipped with electrolytic capacitor group, radiator and drive plate in proper order in the casing, electrolytic capacitor group comprises the condenser that three from the top down arranged the setting, the radiator includes three horizontal heat dissipation channel and a vertical heat dissipation channel, and three condenser sets up respectively in three horizontal heat dissipation channel, the left end of three horizontal heat dissipation channel respectively with the three first vent that the casing left side set up is linked together, the right-hand member of three horizontal heat dissipation channel all with vertical heat dissipation channel is linked together, the second vent of both sides is linked together about the both ends of vertical heat dissipation channel and the casing, all is equipped with radiator fan on two second vents. The air can be through carrying out ventilation cooling through horizontal heat dissipation channel behind the vertical heat dissipation channel, and the holistic radiating effect of converter is good, and the heat that gives off is difficult to the interact moreover between the condenser.

Description

Low-voltage high-power frequency converter

Technical Field

The utility model relates to a converter especially relates to a high-power converter of low pressure.

Background

The normal use of converter requires that ambient temperature is higher, and too high temperature can lead to the converter high temperature to report to the police. The condenser can produce a large amount of heats at the operation in-process of actual work of converter, if can not in time distribute away this part heat and produce great influence to the power unit of converter, probably cause converter fault tripping operation occasionally seriously. The existing frequency converter heat dissipation system generally has the advantages that a heat dissipation fan and a ventilation opening are arranged on the surface of a frequency converter box body for heat dissipation, the circulation of an internal capacitor is poor, and the heat dissipated among capacitors is easily influenced mutually.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide a high-power converter of low pressure, the radiating effect is good, and the heat that gives off is difficult to influence each other moreover between the condenser.

The utility model provides a technical scheme that its technical problem adopted: a drive plate, an electrolytic capacitor group and a radiator are arranged in the shell, the electrolytic capacitor group, the radiator and the drive plate are sequentially arranged in the shell from left to right, the electrolytic capacitor group is composed of three capacitors arranged from top to bottom, the radiator comprises three transverse radiating channels and a vertical radiating channel, the three capacitors are respectively arranged in the three transverse radiating channels, the left ends of the three transverse radiating channels are respectively communicated with three first ventilation openings formed in the left side of the shell, the right ends of the three transverse radiating channels are respectively communicated with the vertical radiating channel, the upper end and the lower end of the vertical radiating channel are respectively communicated with second ventilation openings formed in the upper side and the lower side of the shell, and radiating fans are arranged on the two second ventilation openings.

For further improvement, three be equipped with first intercommunication mouth, second intercommunication mouth and third intercommunication mouth respectively between the right-hand member of horizontal heat dissipation passageway and the vertical heat dissipation passageway, respectively be equipped with a first slope guide plate on first intercommunication mouth and the third intercommunication mouth, two second ventilation opening about first slope guide plate moves towards respectively, be equipped with V type guide plate on the third intercommunication mouth, the upper and lower both sides of V type guide plate are equipped with the second slope guide plate of two second ventilation opening about moving towards respectively.

Further perfect, be equipped with first filter screen on the first vent, be equipped with on the first filter screen with horizontal heat dissipation channel fixed connection's vertical fin.

And further perfection is realized, a second filter screen is arranged on the second ventilation opening, a wind guide impeller is rotatably arranged outside the second filter screen, and bristles for cleaning the surface of the second filter screen are arranged on the wind guide impeller.

Further perfection, all be equipped with a plurality of bellied graphite conducting strip on the inner wall of horizontal heat dissipation passageway and vertical heat dissipation passageway.

The utility model discloses profitable effect is: the utility model discloses be equipped with three horizontal heat dissipation channel and a vertical heat dissipation channel in, three condenser sets up respectively in three horizontal heat dissipation channel, and the air can carry out ventilation cooling through horizontal heat dissipation channel behind the vertical heat dissipation channel, and the holistic radiating effect of converter is good, and the heat that gives off is difficult to the mutual influence between the condenser moreover.

Drawings

FIG. 1 is a schematic view of the present invention;

description of the reference numerals: 1. the heat dissipation structure comprises a shell, 2, a capacitor, 3, a driving plate, 4, a transverse heat dissipation channel, 5, a vertical heat dissipation channel, 6, a first ventilation opening, 7, a second ventilation opening, 8, a first communication opening, 9, a second communication opening, 10, a third communication opening, 11, a first inclined guide plate, 12, a second inclined guide plate, 13, a first filter screen, 14, a vertical heat dissipation piece, 15, a second filter screen, 16, a wind guide impeller, 17, bristles, 18, a graphite heat conduction piece, 19 and a heat dissipation fan.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

with reference to the accompanying drawings: the low-voltage high-power frequency converter comprises a shell 1 and a control panel arranged on the shell 1, wherein a driving plate 3, an electrolytic capacitor group and a radiator are arranged in the shell 1, the electrolytic capacitor group, the radiator and the driving plate 3 are sequentially arranged in the shell 1 from left to right, the electrolytic capacitor group consists of three capacitors 2 arranged from top to bottom, the radiator comprises three transverse radiating channels 4 and a vertical radiating channel 5, the three capacitors 2 are respectively arranged in the three transverse radiating channels 4, the left ends of the three transverse radiating channels 4 are respectively communicated with three first ventilation openings 6 arranged on the left side of the shell 1, the right ends of the three transverse radiating channels 4 are respectively communicated with the vertical radiating channel 5, the upper end and the lower end of the vertical radiating channel 5 are respectively communicated with second ventilation openings 7 arranged on the upper side and the lower side of the shell 1, and two second ventilation openings 7 are respectively provided with a radiating fan 19. During the use, radiator fan 19 lets in the direct current and rotates, outside cold air inhales in the casing 1 from second ventilation opening 7, get into three horizontal heat dissipation channel 4 respectively after flowing along vertical heat dissipation channel 5, from first ventilation opening 6 exhaust hot-air after contacting the heat transfer with condenser 2, outside air can reach condenser 2 and carry out quick heat transfer, thereby realize the high-efficient cooling to condenser 2, and the heat that gives off is difficult to the interact between condenser 2 under the effect of horizontal air current, the life of condenser 2 has been prolonged, horizontal heat dissipation channel 4 and vertical heat dissipation channel 5 can strengthen the heat transfer area of air and casing inside, thereby improve the holistic radiating efficiency of converter.

The heat dissipation device is characterized in that a first communication port 8, a second communication port 9 and a third communication port 10 are respectively arranged between the right end of the transverse heat dissipation channel 4 and the vertical heat dissipation channel 5, the first communication port 8 and the third communication port 10 are respectively provided with a first inclined guide plate 11, the first inclined guide plates 11 respectively face to the upper second ventilation port 7 and the lower second ventilation port 7, the third communication port 10 is provided with a V-shaped guide plate, and the upper side and the lower side of the V-shaped guide plate are respectively provided with second inclined guide plates 12 facing to the upper second ventilation port 7 and the lower second ventilation port 7. The first inclined guide plate 11 and the second inclined guide plate 12 can guide the air flow in the vertical heat dissipation channel 5 to enter the three transverse heat dissipation channels 4, so that the resistance can be reduced, the heat dissipation area can be increased, the air flow rate is increased, and the heat dissipation effect is enhanced. The wind power distributed by the middle transverse heat dissipation channel 4 is large, the heat dissipation effect is good, and the heat accumulation of the middle capacitor 2 can be avoided.

Be equipped with first filter screen 13 on the first vent 6, can avoid the dust to get into the casing, be equipped with on first filter screen 13 with horizontal heat dissipation channel 4 fixed connection's vertical fin 14, can increase heat radiating area, improve the radiating effect, make threely horizontal heat dissipation channel 4 can evenly dispel the heat.

The second ventilation opening 7 is provided with a second filter screen 15 capable of filtering air, the second filter screen 15 is externally rotatably provided with a wind guide impeller 16, the wind guide impeller 16 can continuously rotate under the action of wind force, so that wind can be uniformly sucked, and the wind guide impeller 16 is provided with bristles 17 for cleaning the surface of the second filter screen 15, so that dust accumulation on the surface of the second filter screen 15 can be avoided.

The inner walls of the transverse heat dissipation channel 4 and the vertical heat dissipation channel 5 are respectively provided with a plurality of raised graphite heat conducting fins 18, so that the heat conducting performance of the transverse heat dissipation channel 4 and the vertical heat dissipation channel 5 can be enhanced, and the heat dissipation effect is improved.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (5)

1. The utility model provides a high-power converter of low pressure, includes casing (1), and casing (1) is inside to be equipped with drive plate (3), electrolytic capacitor group and radiator, its characterized in that: the electrolytic capacitor bank, the radiator and the driving board (3) are sequentially arranged in the shell (1) from left to right, the electrolytic capacitor bank is composed of three capacitors (2) arranged from top to bottom, the radiator comprises three transverse heat dissipation channels (4) and one vertical heat dissipation channel (5), the three capacitors (2) are respectively arranged in the three transverse heat dissipation channels (4), the left ends of the three transverse heat dissipation channels (4) are respectively communicated with three first ventilation openings (6) formed in the left side of the shell (1), the right ends of the three transverse heat dissipation channels (4) are respectively communicated with the vertical heat dissipation channel (5), the upper end and the lower end of the vertical heat dissipation channel (5) are respectively communicated with second ventilation openings (7) formed in the upper side and the lower side of the shell (1), and heat dissipation fans are arranged on the two second ventilation openings (7).

2. A low-voltage high-power frequency converter according to claim 1, characterized in that: the heat dissipation structure is characterized in that the right end of the transverse heat dissipation channel (4) is three, a first communication port (8), a second communication port (9) and a third communication port (10) are arranged between the vertical heat dissipation channel (5), a first inclined guide plate (11) is arranged on each of the first communication port (8) and the third communication port (10), the first inclined guide plate (11) faces to the upper second ventilation port (7) and the lower second ventilation port (7) respectively, a V-shaped guide plate is arranged on the third communication port (10), and second inclined guide plates (12) which face to the upper second ventilation port (7) respectively are arranged on the upper side and the lower side of the V-shaped guide plate.

3. A low-voltage high-power frequency converter according to claim 2, characterized in that: be equipped with first filter screen (13) on first vent (6), be equipped with on first filter screen (13) with horizontal heat dissipation channel (4) fixed connection's vertical fin (14).

4. A low-voltage high-power frequency converter according to claim 1 or 3, characterized in that: and a second filter screen (15) is arranged on the second ventilation opening (7), a wind guide impeller (16) is rotatably arranged outside the second filter screen (15), and brush bristles (17) used for cleaning the surface of the second filter screen (15) are arranged on the wind guide impeller (16).

5. A low-voltage high-power frequency converter according to claim 1, characterized in that: and a plurality of raised graphite heat-conducting fins (18) are arranged on the inner walls of the transverse heat-radiating channel (4) and the vertical heat-radiating channel (5).

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