CN219679078U - Cabinet internal air cooling heat dissipation device of high-voltage frequency converter - Google Patents

Abstract

The utility model relates to an internal air-cooling heat dissipating device of a cabinet of a high-voltage frequency converter, which comprises a high-voltage frequency converter main body, wherein heat dissipating main pipes are arranged at four corners of an inner cavity of the high-voltage frequency converter main body, outer pipe walls of the four heat dissipating main pipes are communicated with a plurality of heat dissipating auxiliary pipes, the heat dissipating auxiliary pipes respectively reach heating areas with different heights in the high-voltage frequency converter, the problem that air is heated in sequence from bottom to top can be avoided, and the heat dissipating main pipes and the heat dissipating auxiliary pipes can deform and adjust distribution positions and airflow flowing directions, so that air-cooling heat dissipation can be carried out on key heating parts in the high-voltage frequency converter, the characteristics of good heat dissipating effect are achieved, a filter screen can intercept dust and impurities in air carried by an air inlet fan in airflow, the filter screen is detachably inserted into the inner cavity of a filter box, therefore, the dust and the impurities adhered to the lower surface of the filter screen can be cleaned regularly, and the mesh of the filter screen is ensured not to be blocked.

Description

Cabinet internal air cooling heat dissipation device of high-voltage frequency converter

Technical Field

The utility model relates to the technical field of heat dissipation of high-voltage frequency converters, in particular to an air-cooled heat dissipation device in a cabinet body of a high-voltage frequency converter.

Background

The frequency converter is an electric energy control device which converts a power frequency power supply into another frequency by utilizing the on-off action of the power semiconductor device. With the rapid development of modern power electronic technology and microelectronic technology, the high-voltage high-power variable-frequency speed regulating device is continuously mature, and the high-voltage problem which is difficult to solve at all times is well solved in recent years through device series connection or unit series connection.

However, when the high-voltage frequency converter works, heat is generated due to overlarge load, the temperature is easy to be high, related heat dissipation measures are needed, wherein the air cooling heat dissipation is the most common heat dissipation and cooling mode, fans are arranged at the top and the bottom of the high-voltage frequency converter, convection air inlet forms an air channel to conduct air cooling heat dissipation to the inside of the high-voltage frequency converter, the temperature difference of the power unit environment above is small due to the fact that air is heated in sequence from bottom to top, the heat dissipation effect is poor, in addition, the distribution positions of heating components in the high-voltage frequency converter are uneven, the heat of key heating parts cannot be taken away reasonably and reliably by adopting a convection heat dissipation mode, and finally dust and impurities in the air can be blown into the high-voltage frequency converter together in the air cooling heat dissipation process, so that the normal use of the high-voltage frequency converter is affected.

Disclosure of Invention

The utility model solves the problems that the single convection heat dissipation mode has poor heat dissipation effect and dust and impurities enter the high-voltage frequency converter along with air flow to influence normal use.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an internal forced air cooling heat abstractor of cabinet of high voltage inverter, includes the high voltage inverter main part, four corners of high voltage inverter main part inner chamber all are provided with the heat dissipation and are responsible for, four the outer pipe wall that the heat dissipation was responsible for all communicates has a plurality of heat dissipation auxiliary pipes, a plurality of heat dissipation auxiliary pipe output port all sets up with high voltage inverter main part inner chamber intercommunication, the rose box is installed to the bottom of high voltage inverter main part, the filter chamber has been seted up to the top of rose box, four the bottom that the heat dissipation was responsible for all extends to the filter chamber in, annular slot has been seted up to the inner chamber wall of filter chamber, the filter chamber is provided with the filter screen, the filter screen runs through and stretches into the filter chamber in, and in the detachable inserts annular slot, the air inlet fan is installed to the bottom of rose box, air inlet fan output and filter chamber intercommunication setting.

Preferably, the top of the high-voltage frequency converter main body is fixedly provided with an exhaust fan, and the input end of the exhaust fan is communicated with the inner cavity of the high-voltage frequency converter main body.

Preferably, the back of the filter screen is fixedly provided with a handle, and the handle is arranged outside the filter box.

Preferably, the four input ends of the heat dissipation main pipe penetrate through the lower bottom of the high-voltage frequency converter main body, extend into the filter cavity, and are designed to be flush with the top of the upper cavity of the filter cavity.

Preferably, the main heat dissipation pipe and the auxiliary heat dissipation pipes are made of rubber materials, and the auxiliary heat dissipation pipes on the same main heat dissipation pipe are distributed at equal intervals.

Preferably, the four corners of the lower bottom of the high-voltage frequency converter main body are vertically and fixedly provided with supporting legs, the bottom ends of the four supporting legs are fixedly provided with supporting feet, and a reinforcing rod is vertically and fixedly arranged between every two adjacent supporting legs.

The beneficial effects of the utility model are as follows:

firstly, arranging a heat dissipation main pipe at four corners of an inner cavity of a high-voltage frequency converter, wherein the input end of the heat dissipation main pipe is communicated with the output end of an air inlet fan, the output end of the heat dissipation main pipe is communicated with a plurality of heat dissipation auxiliary pipes, cold air flow is uniformly supplied by the air inlet fan and enters the heat dissipation main pipe, and then the heat dissipation auxiliary pipes respectively reach heating areas with different heights in the high-voltage frequency converter, so that the problem of sequential heating of air from bottom to top can be avoided, and the heat dissipation main pipe and the heat dissipation auxiliary pipes can deform and adjust the distribution position and the air flow direction, so that air cooling heat dissipation can be carried out on important heating parts in the high-voltage frequency converter, and the heat dissipation main pipe has the characteristic of good heat dissipation effect;

then, set up a rose box between air inlet fan and four heat dissipation are responsible for the intercommunication, set up the filter screen in the rose box, dust and impurity in the air that the filter screen can intercept air inlet fan blast into air current and carry, the filter screen is detachable inserts the rose box inner chamber, consequently regularly can dismantle the filter screen, clear up the dust and the impurity of lower surface adhesion, ensure that the filter screen mesh is not blocked up.

Drawings

FIG. 1 is a schematic view of the overall appearance structure of the present utility model;

FIG. 2 is a schematic view of the drive shaft mounting structure of the present utility model;

FIG. 3 is a schematic view of the installation structure of the main heat dissipating pipe and the auxiliary heat dissipating pipe of the present utility model;

fig. 4 is a schematic view of the installation structure of the filter box of the utility model.

Legend description:

a high voltage inverter main body; 11. support legs; 12. supporting feet; 13. a reinforcing rod; 14. a heat dissipation main pipe; 15. a heat radiation auxiliary pipe;

a filter box; 21. a filter chamber; 22. an annular slot; 23. a filter screen; 24. a grip; 25. a socket;

an air inlet fan;

and an exhaust fan.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Specific examples are given below.

Referring to fig. 1-4, an internal air-cooled heat abstractor of cabinet of high-voltage inverter, including high-voltage inverter main body 1, four corners in high-voltage inverter main body 1 inner chamber all are provided with heat dissipation and are responsible for 14, the outer pipe wall of four heat dissipation are responsible for 14 all communicates and have a plurality of heat dissipation auxiliary pipes 15, a plurality of heat dissipation auxiliary pipe 15 output port all with high-voltage inverter main body 1 inner chamber intercommunication setting, rose box 2 is installed to the bottom of high-voltage inverter main body 1, filter chamber 21 has been seted up to the top of rose box 2, the bottom of four heat dissipation are responsible for 14 all extends to filter chamber 21 in, annular slot 22 has been seted up to the inner chamber wall of filter chamber 21, be provided with filter screen 23 in the filter chamber 21, the inside wall of annular slot 22 runs through rose box 2 has been seted up socket 25, filter screen 23 runs through socket 25 and detachable insert annular slot 22 in, the air inlet fan 3 is installed to the bottom of rose box 2, air inlet fan 3 output and filter chamber 21 intercommunication setting.

Referring to fig. 1-4, particularly, the top end of the high-voltage inverter main body 1 is fixedly provided with an exhaust fan 4, the input end of the exhaust fan 4 is communicated with the inner cavity of the high-voltage inverter main body 1, the back of the filter screen 23 is fixedly provided with a handle 24, the handle 24 is arranged outside the filter box 2, the input ends of four heat dissipation main pipes 14 extend into the filter cavity 21 through the lower bottom of the high-voltage inverter main body 1 and are flush with the upper cavity top of the filter cavity 21, the heat dissipation main pipes 14 and a plurality of heat dissipation auxiliary pipes 15 are made of rubber materials, the heat dissipation auxiliary pipes 15 on the same heat dissipation main pipe 14 are distributed at equal intervals, the four corners of the lower bottom of the high-voltage inverter main body 1 are vertically and fixedly provided with supporting legs 11, the bottom ends of the four supporting legs 11 are fixedly provided with supporting legs 12, and the two adjacent supporting legs 11 are vertically and fixedly provided with reinforcing rods 13.

Working principle:

firstly, according to the distribution positions of the relevant heat dissipation components in the high-voltage frequency converter main body 1, the distribution positions of the heat dissipation main pipe 14 and the corresponding heat dissipation auxiliary pipes 15 are respectively adjusted, especially the alignment direction of the output pipe orifices of the heat dissipation auxiliary pipes 15, and for key heat dissipation positions, the output pipe orifices of the heat dissipation auxiliary pipes 15 can be aligned to the positions for key targeted air cooling heat dissipation;

secondly, starting an air inlet fan 3, extracting ambient air by the air inlet fan 3, and discharging the ambient air into a filter cavity 21, wherein the ambient air and dust impurities in the air can enter four heat dissipation main pipes 14 through a filter screen 23, in the process, the dust and impurities in the air can be intercepted and remained on the lower surface of the filter screen 23, the ambient air normally enters the heat dissipation main pipes 14 (the pressure in the filter cavity 21 is increased due to continuous entering of the ambient air, and the ambient air can enter the four heat dissipation main pipes 14), and finally, ambient cold air flows are discharged from output pipe orifices of a plurality of heat dissipation auxiliary pipes 15 respectively, and the cold air flows are directly blown to the surfaces of heating components in the high-voltage frequency converter main body 1 to take away the heat on the surfaces of the heating components;

thirdly, because the whole inner cavity of the high-voltage frequency converter main body 1 continuously blows in ambient air, the pressure is increased, the exhaust fan 4 is started again, and the high-temperature air in the high-voltage frequency converter main body 1 is exhausted, so that a heat dissipation channel with strong pertinence and good heat dissipation effect is formed in the high-voltage frequency converter main body 1;

fourth, the filter screen 23 is taken out of the filter cavity 21 by the handle 24 at regular intervals, and dust and impurities attached to the lower surface of the filter screen 23 are cleaned, so that the meshes of the filter screen 23 are not blocked, and the filter screen has good air passing effect for a long time.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The utility model provides an internal forced air cooling heat abstractor of cabinet of high voltage inverter, includes high voltage inverter main part (1), its characterized in that, four corners of high voltage inverter main part (1) inner chamber all are provided with heat dissipation and are responsible for (14), four the outer pipe wall that heat dissipation was responsible for (14) all communicates has a plurality of heat dissipation auxiliary pipe (15), a plurality of heat dissipation auxiliary pipe (15) output port all sets up with high voltage inverter main part (1) inner chamber intercommunication, rose box (2) are installed to the bottom of high voltage inverter main part (1), filter chamber (21) have been seted up on the top of rose box (2), four the bottom that heat dissipation was responsible for (14) all extends to in filter chamber (21), annular slot (22) have been seted up to the inner chamber wall of filter chamber (21), be provided with filter screen (23) in filter chamber (21), the inside wall of annular slot (22) runs through the outside wall of rose box (2) and has seted up socket (25), filter screen (23) run through socket (25) and detachable and insert annular slot (22), filter screen (3) bottom and filter chamber (3) are installed to the air inlet fan (3).

2. The air-cooled heat dissipating device in a cabinet body of a high-voltage frequency converter according to claim 1, wherein an exhaust fan (4) is fixedly arranged at the top end of the high-voltage frequency converter main body (1), and the input end of the exhaust fan (4) is communicated with the inner cavity of the high-voltage frequency converter main body (1).

3. The air-cooled heat dissipating device in the cabinet of the high-voltage inverter as recited in claim 1, wherein the back of the filter screen (23) is fixedly provided with a handle (24), and the handle (24) is arranged outside the filter box (2).

4. The air-cooled heat dissipating device in a cabinet of a high-voltage inverter as claimed in claim 1, wherein the input ends of the four heat dissipating main pipes (14) extend into the filter cavity (21) through the lower bottom of the high-voltage inverter main body (1) and are flush with the upper cavity top of the filter cavity (21).

5. The air-cooled heat dissipating device in a cabinet of a high-voltage frequency converter according to claim 1, wherein the heat dissipating main pipe (14) and the plurality of heat dissipating auxiliary pipes (15) are made of rubber materials, and the plurality of heat dissipating auxiliary pipes (15) on the same heat dissipating main pipe (14) are distributed at equal intervals.

6. The air-cooled heat dissipating device in a cabinet body of a high-voltage frequency converter according to claim 1, wherein supporting legs (11) are vertically and fixedly installed at four corners of the lower bottom of the high-voltage frequency converter main body (1), supporting feet (12) are fixedly installed at the bottom ends of the four supporting legs (11), and reinforcing rods (13) are vertically and fixedly installed between two adjacent supporting legs (11).