CN210008081U - low-voltage electric appliance cabinet for rail locomotive - Google Patents

Abstract

The utility model discloses an track locomotive low-voltage apparatus cabinet, including the electrical apparatus cabinet body, electrical apparatus cabinet body inboard is provided with the electrical apparatus cabinet chamber, the top in electrical apparatus cabinet chamber is provided with the negative pressure chamber, the negative pressure chamber with separate by the division board between the electrical apparatus cabinet chamber, install negative-pressure air fan on the cabinet top of electrical apparatus cabinet body, the inlet end intercommunication of negative-pressure air fan lower extreme the negative pressure chamber, the end of giving vent to anger of negative-pressure air fan upper end communicates the external world, the utility model has the advantages of simple structure, the mode that adopts negative-pressure air fan makes the internal heat dissipation of cabinet rapider to make each electrical apparatus hold the intracavity and produce the negative pressure simultaneously through the form that sets up air guide channel, and the hot air of all electrical apparatus appearance intracavity is taken away the back, and the gas that supplys into is outside cold air, and the radiating effect that each electrical apparatus held the chamber is and sends, therefore.

Description

low-voltage electric appliance cabinet for rail locomotive

Technical Field

The utility model belongs to the electric appliance cabinet field.

Background

The electric appliance cabinet is used for intensively accommodating electric appliances of a locomotive, the heat dissipation problem is particularly outstanding, the existing heat dissipation mode usually adopts a passive heat dissipation mode such as increasing heat dissipation fins, and the heat dissipation mode is effective; also there is some electrical apparatus cabinets to adopt initiative dispersion heat dissipation, but because there is multilayer structure in the electrical apparatus cabinet, if set up the fan at the top, the electrical part heat dissipation at often top is better, and bottom electrical part heat dissipation is relatively poor, if add radiator fan in the bottom, the radiating effect at its top will be relatively poor, sets up the cost that the condition of a plurality of fans often can increase the fan.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and the utility model provides low-voltage electric appliance cabinets with uniform heat dissipation for rail locomotives.

The technical scheme is that the track locomotive low-voltage electric appliance cabinet comprises an electric appliance cabinet body, wherein an electric appliance cabinet cavity is formed in the inner side of the electric appliance cabinet body, a negative pressure cavity is formed above the electric appliance cabinet cavity, and the negative pressure cavity and the electric appliance cabinet cavity are separated by a separation plate;

the cabinet is characterized in that a plurality of horizontal electric device bearing plates are distributed in the cabinet cavity, the cabinet cavity is divided into a plurality of electric device containing cavities by the plurality of electric device bearing plates, a left air guide channel and a right air guide channel which extend along the vertical direction are symmetrically arranged on two sides of the electric device cabinet cavity respectively, the upper ends of the left air guide channel and the right air guide channel are communicated with the negative pressure cavity, a left air guide hole and a right air guide hole are arranged on two sides of each electric device containing cavity respectively, each left air guide hole is communicated with the left air guide channel, each right air guide hole is communicated with the right air guide channel, and a plurality of air inlet meshes are hollowed in the side face, far away from the cabinet , of each electric.

, line passing holes are hollowed in the side wall of each electric device accommodating cavity, annular lifting lugs are fixedly mounted at four corners of the top of the cabinet top, a horizontal protection plate is arranged right above the negative-pressure air fan, a distance is kept between the protection plate and the cabinet top, and the four corners of the protection plate are fixedly connected with the cabinet top through four supporting stand columns.

, arranging a plate groove on the back side of the electric cabinet body, wherein the inlet of each air inlet mesh is positioned in the plate groove, and the dust filter screen plate is rectangular and embedded in the plate groove, and locking holes are respectively arranged at the four corners of the dust filter screen plate and locked at the four corners in the plate groove by screws.

, two anti-sticking piles extending backwards are arranged on two sides of the upper end of the back side face of the electric appliance cabinet body.

The utility model has the advantages of simple structure, the mode that adopts negative pressure fan makes the internal heat dissipation of cabinet more rapid to make each electrical part hold the intracavity and produce the negative pressure simultaneously through the form that sets up the air guide channel, and the hot air in all electrical parts hold the intracavity is taken away the back, and the gas that supplyes is the outside cold air, and the radiating effect that each electrical part held the chamber is and causes, therefore the heat dissipation degree of consistency in its whole electrical part cabinet intracavity of assurance.

Drawings

FIG. 1 is an overall schematic view of the apparatus;

FIG. 2 is a schematic view of a dust-proof screen plate of the apparatus;

FIG. 3 is a front view of the apparatus;

FIG. 4 is a schematic view of the device in internal cutaway;

fig. 5 is a front view of the cabinet shown hidden.

Detailed Description

The present invention will be further described in with reference to the accompanying drawings.

The low-voltage electric appliance cabinets for rail locomotives as shown in the attached drawings 1 to 5 are characterized by comprising an electric appliance cabinet body 5, wherein an electric appliance cabinet cavity 0 is arranged on the inner side of the electric appliance cabinet body 5, a negative pressure cavity 20 is arranged above the electric appliance cabinet cavity 0, the negative pressure cavity 20 is separated from the electric appliance cabinet cavity 0 by a partition plate 31, a negative pressure fan 13 is arranged on the cabinet top 4 of the electric appliance cabinet body 5, the air inlet end at the lower end of the negative pressure fan 13 is communicated with the negative pressure cavity 20, the air outlet end at the upper end of the negative pressure fan 13 is communicated with the outside, a plurality of horizontal electric appliance bearing plates 14 are distributed in the cabinet cavity, the electric appliance bearing plates 14 divide the electric appliance cabinet cavity 0 into a plurality of electric appliance containing cavities 19 for containing and fixedly installing various electric appliances, a left air guide channel 17 and a right air guide channel 18 which extend along the vertical direction are respectively and symmetrically arranged on two sides of the electric appliance cabinet cavity 0, the left air guide channel 17 and the right air guide channel 18 are communicated with the air guide channel 20, the left air guide channel 17 and the right air guide channel 18 are respectively communicated with a plurality of air guide channels 6316 which are sequentially enlarged from top to the left air guide channel 15 and right air guide channel 3616;

in the air flow and heat dissipation process of the scheme, in the operation process of an electric appliance cabinet body 5, the electric appliance in each electric appliance accommodating cavity 19 generates amount, so that the cavity part in each electric appliance accommodating cavity 19 is filled with hot air, after a negative pressure fan 13 is started, air in a negative pressure cavity 20 is continuously pumped away, negative pressure is formed in the negative pressure cavity 20, the negative pressure in the negative pressure cavity 20 is transmitted to a left air guide channel 17 and a right air guide channel 18, so that the left air guide channel 17 and the right air guide channel 18 continuously and uniformly suck away the hot air in each electric appliance accommodating cavity 19 through a plurality of left air guide holes 15 and right air guide holes 16, so that negative pressure is also formed in each electric appliance accommodating cavity 19, so that cold air outside each electric appliance accommodating cavity 19 is continuously supplemented by each air inlet mesh 12, a continuous heat dissipation effect is achieved, the heat dissipation in the cabinet body is quicker by adopting a negative pressure fan, the air in each electric appliance accommodating cavity is simultaneously generated by arranging the air guide channels, and the cold air in each electric appliance accommodating cavity is supplemented by the air outside air after all the hot air in the electric appliance accommodating cavities are pumped away, so that the heat dissipation effect of the whole electric appliance is achieved by .

The side wall of each electric device accommodating cavity 19 is provided with a wire passing hole 6 in a hollow manner, and the wire passing hole 6 is used for threading; annular lifting lugs 2 are fixedly mounted at four corners of the top of the cabinet top 4, and the lifting lugs 2 are used for transportation when leaving a factory; a horizontal guard plate 1 is arranged right above the negative pressure fan 13, a distance is kept between the guard plate 1 and the cabinet top 4, and four corners of the guard plate 1 are fixedly connected with the cabinet top 4 through four supporting upright posts 3; the guard plate 1 effectively prevents liquid above, and other falling objects, from falling down into the negative pressure chamber 20;

a plate groove 8 is formed in the back side surface of the electric appliance cabinet body 5, and the inlet of each air inlet mesh hole 12 is positioned in the plate groove 8; the dust-proof filter screen plate is characterized by further comprising a rectangular dust-proof filter screen plate 9, wherein the dust-proof filter screen plate 9 is embedded in the plate groove 8; locking holes 10 are respectively arranged at four corners of the dustproof filter screen plate 9, each locking hole 10 is locked at the four corners in the plate groove 8 through screws, the dustproof filter screen plate 9 is of a nylon screen structure, and the dustproof filter screen plate 9 can prevent part of dust from entering the cavity 0 of the electric appliance cabinet; in addition, two anti-sticking piles 11 extending backwards are arranged on two sides of the upper end of the back side surface of the electric appliance cabinet body 5; the anti-sticking pile 11 can avoid the problem that the dustproof filter screen plate 9 is not smooth in ventilation after the back side surface of the electric appliance cabinet body 5 is completely close to the wall surface.

The above description is only a preferred embodiment of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims (4)

1. The low-voltage electric appliance cabinet for the track locomotives is characterized by comprising an electric appliance cabinet body (5), wherein an electric appliance cabinet cavity (0) is formed in the inner side of the electric appliance cabinet body (5), a negative pressure cavity (20) is formed above the electric appliance cabinet cavity (0), the negative pressure cavity (20) is separated from the electric appliance cabinet cavity (0) through a separation plate (31), a negative pressure fan (13) is installed on a cabinet top (4) of the electric appliance cabinet body (5), the air inlet end at the lower end of the negative pressure fan (13) is communicated with the negative pressure cavity (20), and the air outlet end at the upper end of the negative pressure fan (13) is communicated with the outside;

   the electric appliance cabinet is characterized in that a plurality of horizontal electric appliance bearing plates (14) are distributed in the cabinet cavity, the electric appliance bearing plates (14) divide the electric appliance cabinet cavity (0) into a plurality of electric appliance containing cavities (19), two sides of the electric appliance cabinet cavity (0) are respectively and symmetrically provided with a left air guide channel (17) and a right air guide channel (18) which extend along the vertical direction, the upper ends of the left air guide channel (17) and the right air guide channel (18) are communicated with the negative pressure cavity (20), two side parts of each electric appliance containing cavity (19) are respectively provided with a left air guide hole (15) and a right air guide hole (16), each left air guide hole (15) is communicated with the left air guide channel (17), each right air guide hole (16) is communicated with the right air guide channel (18), and a plurality of air inlet meshes (12) are hollowed in the side face , far away from the cabinet (7), of each electric.
2. 2. The low-voltage electric appliance cabinet for the rail locomotive according to claim 1, wherein a through hole (6) is hollowed in the side wall of each electric appliance accommodating cavity (19), annular lifting lugs (2) are fixedly installed at four corners of the top of the cabinet top (4), a horizontal protection plate (1) is arranged right above the negative pressure fan (13), the protection plate (1) and the cabinet top (4) keep a distance, and the four corners of the protection plate (1) are fixedly connected with the cabinet top (4) through four supporting upright posts (3).
3. 3. The low-voltage electric appliance cabinet for the rail locomotive according to claim 2, wherein a plate groove (8) is formed in the back side surface of the electric appliance cabinet body (5), the inlet of each air inlet mesh (12) is located in the plate groove (8), the low-voltage electric appliance cabinet further comprises a rectangular dustproof filter screen plate (9), the dustproof filter screen plate (9) is embedded in the plate groove (8), locking holes (10) are formed in four corners of the dustproof filter screen plate (9), and the locking holes (10) are locked in the four corners of the plate groove (8) through screws.
4. 4. The kind of rail locomotive low-voltage electrical cabinet as claimed in claim 3, wherein two anti-sticking piles (11) extending backwards are arranged on both sides of the upper end of the back side of the electrical cabinet body (5).

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