CN112838501A

CN112838501A - Heat dissipation device for power active filter device on column

Info

Publication number: CN112838501A
Application number: CN201911167880.0A
Authority: CN
Inventors: 周景; 郭鹏; 何端午
Original assignee: Hunan Senneng Electric Power Technology Co ltd
Current assignee: Hunan Senneng Electric Power Technology Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2021-05-25

Abstract

The invention discloses a heat dissipation device for an on-column power active filter device, which comprises a box body, wherein the center of the interior of the box body is divided into two containing cavities through a partition plate, first air inlets are formed in the bottoms of the two containing cavities in the box body, a second air inlet is formed in the corner between the tops of the two containing cavities in the box body, a heat conduction strip is installed on a rectangular bolt notch, and a guide plate corresponding to the first air inlets is installed on the inner wall of the bottom end of the partition plate. According to the invention, external air enters the box body through the first air inlet and the second air inlet and the guide plate at the bottom end of the partition plate, and then forms an air circulation loop, so that the heat dissipation effect of the box body is enhanced, the whole circulation air loop completely surrounds the power active filter, the heat on the outer surface of the power active filter can be rapidly cooled, and the heat on the outer surfaces of the power active filter and the heat conducting strip which are contacted with each other can be conducted to the outside of the box body through the heat conducting strip, so that the heat dissipation effect is achieved.

Description

Heat dissipation device for power active filter device on column

Technical Field

The present invention relates to a heat dissipation device, and more particularly, to a heat dissipation device for an on-pillar power active filter device.

Background

An active power filter is a novel power electronic device for dynamically inhibiting harmonic waves and compensating reactive power, and can generate heat in the operation process, so that the active power filter needs to be installed in a shell device with a heat dissipation effect.

The box structure radiating effect of the existing electric power active filter is not good enough, and the air suction flow guide structure with a simple structure is adopted, so that the high-temperature heat inside the box body cannot be quickly dissipated.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a heat dissipation device for an on-column power active filter device, which can enable external air to enter a box body through a first air inlet and a second air inlet and match with a guide plate at the bottom end of a partition plate to form an air circulation loop, thereby enhancing the heat dissipation effect of the box body.

In order to solve the technical problems, the invention provides the following technical scheme:

the invention relates to a heat dissipation device for a power active filter device on a column, which comprises a box body, wherein the center in the box body is divided into two containing cavities by a partition plate, a power active filter is arranged in each containing cavity, the bottoms of the two containing cavities in the box body are provided with first air inlets, a second air inlet is arranged at the corner between the tops of the two containing cavities in the box body, a first fan is arranged on each first air inlet, a second fan is arranged on each second air inlet, an air outlet is arranged at the center of the top end of the box body, the two containing cavities in the box body are communicated with the air outlet, a fixed cross beam is arranged on the inner wall surface of the box body, the bottom end of the fixed cross beam is connected with a connecting rod, a rectangular bolt notch is formed in the back surface of the box body, a heat conduction strip is arranged on the rectangular bolt notch, and a sealing ring is bonded, and a guide plate corresponding to the first air inlet is arranged on the inner wall of the bottom end of the partition plate.

As a preferable technical scheme of the invention, the power active filter, the first fan and the second fan penetrate through the box body shell through electric connecting wires to be externally connected with a power supply.

As a preferred technical solution of the present invention, the first air inlet and the second air inlet are perpendicular to each other.

As a preferred technical solution of the present invention, the fixed beam is fixedly connected to the power active filter through a connecting rod.

As a preferable aspect of the present invention, the back surface of the electrically active filter is in contact with the heat conductive strip.

As a preferable technical solution of the present invention, the heat conducting strip is made of a heat conducting silicone grease material.

As a preferred technical scheme of the invention, the heat conducting strip and the box body are inserted and connected through a rectangular bolt slot.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, external air enters the box body through the first air inlet and the second air inlet and the guide plate at the bottom end of the partition plate, and then forms an air circulation loop, so that the heat dissipation effect of the box body is enhanced, the whole circulation air loop completely surrounds the power active filter, the heat on the outer surface of the power active filter can be rapidly cooled, and the heat on the outer surfaces of the power active filter and the heat conducting strip which are contacted with each other can be conducted to the outside of the box body through the heat conducting strip, so that the heat dissipation effect is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a partial cross-sectional structural view of the present invention;

in the figure: 1. a box body; 2. a partition plate; 3. a power active filter; 4. a first air inlet; 5. a second air inlet; 6. a first fan; 7. a second fan; 8. an air outlet; 9. fixing the cross beam; 10. a connecting rod; 11. a heat conducting strip; 12. a seal ring; 13. a baffle.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation. Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1

Referring to fig. 1, the invention provides a heat dissipation device for a power active filter device on a column, comprising a box body 1, wherein the center inside the box body 1 is partitioned by a partition plate 2 to form two containing cavities, power active filters 3 are respectively installed inside the two containing cavities, first air inlets 4 are arranged at the bottoms of the two containing cavities in the box body 1, second air inlets 5 are arranged at the corners of the tops of the two containing cavities in the box body 1, first fans 6 are installed on the first air inlets 4, second fans 7 are installed on the second air inlets 5, an air outlet 8 is arranged at the center of the top end of the box body 1, the two containing cavities in the box body 1 are respectively communicated with the air outlet 8, a fixed cross beam 9 is installed on the inner wall surface of the box body 1, the bottom end of the fixed cross beam 9 is connected with a connecting rod 10, a rectangular bolt notch is formed on the back surface of the box body 1, a sealing ring 12 is bonded between the rectangular bolt notch and the heat conducting strip 11, and a guide plate 13 corresponding to the first air inlet 4 is installed on the inner wall of the bottom end of the partition plate 2.

Further, the active power filter 3, the first fan 6 and the second fan 7 all penetrate through the outer shell of the box body 1 through electric connecting lines to be externally connected with a power supply, and the active power filter 3, the first fan 6 and the second fan 7 operate after being externally connected with the power supply through the electric connecting lines.

First air intake 4 and second air intake 5 are mutually perpendicular, can let outside air form the return circuit of circulation of air after getting into box 1 through first air intake 4 and second air intake 5, have strengthened the radiating effect of box 1.

The fixed beam 9 is fixedly connected with the power active filter 3 through a connecting rod 10, and the power active filter 3 is fixedly mounted on the inner wall of the box body 1 through the connecting rod 10 and the fixed beam 9.

The back of the power active filter 3 is in contact with the heat conducting strip 11, and the heat of the power active filter 3 can be conducted to the outside of the box body 1 through the heat conducting strip 11, so that the heat dissipation effect is achieved.

The heat conducting strips 11 are made of heat conducting silicone grease materials, have good heat conducting effect and are convenient to dissipate heat.

The heat conduction strip 11 and the box body 1 are inserted through the rectangular bolt notch, so that the heat conduction strip 11 is conveniently taken out for replacement, and dust is cleaned.

Specifically, the top end of the back of the box body 1 is provided with a screw hole, which is convenient for hanging and installing the box body 1, the power active filter 3, the first fan 6 and the second fan 7 are operated after being externally connected with a power supply through an electric connecting wire, external air enters the box body 1 through the first air inlet 4 and the second air inlet 5 and the guide plate 13 at the bottom end of the partition plate 2 to form a circulating loop, which enhances the heat dissipation effect of the box body 1, the whole circulating loop completely surrounds the power active filter 3, can rapidly cool heat on the outer surface of the power active filter 3, and part of the air circulates out from the air outlet 8 in the circulating process, and the back of the power active filter 3 is contacted with the heat conducting strip 11, and the heat of the contact outer surfaces of the power active filter 3 and the heat conducting strip 11 can be conducted to the outside of the box body 1 through the heat conducting strip 11, so that the heat dissipation effect is achieved.

According to the invention, external air enters the box body 1 through the first air inlet 4 and the second air inlet 5 and the guide plate 13 at the bottom end of the partition plate 2, so that an air circulation loop is formed, the heat dissipation effect of the box body 1 is enhanced, the whole circulation air loop completely surrounds the power active filter 3, the heat on the outer surface of the power active filter 3 can be rapidly cooled, and the heat on the outer surface of the power active filter 3 and the heat conduction strip 11, which is contacted with the outer surface, can be conducted to the outside of the box body 1 through the heat conduction strip 11, so that the heat dissipation effect is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The heat dissipation device for the on-column power active filter device comprises a box body (1) and is characterized in that the inside center of the box body (1) is separated by a partition plate (2) to form two containing cavities, a power active filter (3) is installed inside each containing cavity, first air inlets (4) are formed in the bottoms of the two containing cavities in the box body (1), second air inlets (5) are formed in included angles of the tops of the two containing cavities in the box body (1), a first fan (6) is installed on each first air inlet (4), a second fan (7) is installed on each second air inlet (5), an air outlet (8) is formed in the center of the top end of the box body (1), the two containing cavities in the box body (1) are communicated with the air outlet (8), and a fixed cross beam (9) is installed on the inner wall surface of the box body (1), connecting rod (10) is connected to the bottom of fixed cross beam (9), rectangle bolt notch has been seted up on the back of box (1), install heat conduction strip (11) on the rectangle bolt notch, it has sealing washer (12) to bond between rectangle bolt notch and heat conduction strip (11), install guide plate (13) corresponding with first air intake (4) on the bottom inner wall of baffle (2).

2. The heat dissipation device for the on-column power active filter device according to claim 1, wherein the power active filter (3), the first fan (6) and the second fan (7) are all connected with an external power supply through an electric connection line passing through the shell of the box body (1).

3. The heat dissipation device for the on-column power active filter device according to claim 1, wherein the first air inlet (4) and the second air inlet (5) are perpendicular.

4. A heat sink for an on-pole electrically active filter device according to claim 1, characterized in that the fixing beam (9) is fixedly connected to the electrically active filter (3) by means of a connecting rod (10).

5. A heat sink for an on-post electrically active filter device according to claim 1, characterized in that the back side of the electrically active filter (3) is in contact with the heat conducting strip (11).

6. A heat sink device for an on-post electrically active filter device according to claim 1, characterized in that the heat conducting strips (11) are made of a heat conducting silicone grease material.

7. The heat sink for an on-column power active filter device according to claim 1, wherein the heat conducting strip (11) and the housing (1) are inserted through a rectangular socket.